WO2019174020A1

WO2019174020A1 - Hidden stepless telescopic adjustment device, telescopic pile, and application

Info

Publication number: WO2019174020A1
Application number: PCT/CN2018/079210
Authority: WO
Inventors: 周密; 王焕先
Original assignee: 周密
Priority date: 2018-03-16
Filing date: 2018-03-16
Publication date: 2019-09-19
Also published as: CN108513594B; CN108513594A

Abstract

A hidden stepless telescopic adjustment device (100), a telescopic pile (10), and an application. The hidden stepless telescopic adjustment device (100) is hidden inside the telescopic pile (10) to implement stepless telescopic adjustment of the telescopic pile (10), thereby obtaining the telescopic pile (10) that is simple in appearance and adapted to stepless telescopic adjustment. The telescopic pile (10) further comprises an inner rod (11) and an outer tube (12). The hidden stepless telescopic adjustment device (100) comprises a drive plug (101) and an outer tube expanding plug (102). The drive plug (101) and the outer tube expanding plug (102) can be driven by means of relative rotation between the inner rod (11) and the outer tube (12) to rotate with respect to each other to adjust the frictional force between the outer tube expanding plug (102) and the outer tube (12), thereby controlling the telescopic movement of the telescopic pile (10) by the adjustment of the frictional force between the outer tube expanding plug (102) and the outer tube (12).

Description

Concealed stepless telescopic adjustment device and telescopic pile and application

Technical field

The present invention relates to the field of telescopic adjustment, and more particularly to a concealed stepless telescopic adjustment device and a telescopic pile and application for concealing the concealed stepless telescopic adjustment device inside the telescopic pile to achieve the The stepless adjustment of the telescopic pile results in a telescopic pile that is compact in appearance and suitable for being adjusted by stepless expansion and contraction.

Background technique

The telescopic rod with telescopic adjustment function formed by two rods that are nested with each other tends to have high applicability because of its long and short telescopic adjustment, and thus is more advantageous for reducing the mass production of the product model, thereby reducing the production cost. At present, the telescopic rods are mainly divided into two types according to their telescopic adjustment modes, namely, stepwise adjustment and stepless adjustment. Among them, the telescopic rods adopting the stepwise adjustment mode mainly perform the stepwise telescopic adjustment by the telescopic movement between the two rods by the fixed point, and After the telescopic adjustment, the telescopic rod is given a certain force-receiving capability in the direction of the telescopic adjustment. For example, the telescopic adjustment structure of the moving awning or the parasol is more such that the telescopic rod has such a grading adjustment.

The telescopic rod adopting the stepless adjustment method has wider applicability because it has a more precise adjustment range than the telescopic rod adopting the stepwise adjustment method, but its structure is also more complicated, and the stepless adjustment structure is also more diverse, such as daily use. The chair lift is mainly adjusted by the air pressure, and the lifting and lowering of the legs of the washing machine is mainly realized by the thread structure.

However, the current telescopic design of the telescopic rod, whether using the stepwise telescopic adjustment method or the stepless telescopic adjustment method, is indispensable to form a design for forming the telescopic adjustment structure on the outside of the telescopic rod, thereby affecting the appearance of the telescopic rod. Visually, and not suitable for long-term exposure to the outside, so as not to be damaged by water or rust. Therefore, the current telescopic design of the telescopic rod is not suitable for rods that have high requirements for appearance or long-term use outdoors. The telescopic design of the structure, such as queued piles used to guide the queuing or road piles placed on the road. Therefore, the current queuing pile or road pile still adopts a structure having a fixed length without a telescopic function.

That is to say, the current queuing piles often require the user to customize according to different usage requirements, so it is difficult to reduce the production cost, and the production cycle is often long, which is difficult to supply in a short time, especially when This is especially true when the length of the queuing pile is low. In addition, because the specifications are difficult to singularize, the cost of warehouse management and transportation is also increased, which is unacceptable to both producers and purchasers. Therefore, at present, in order to reduce the production cost of the queuing piles and ensure the supply, the producers still purchase the queuing piles of different lengths and specifications for the users to purchase. In this way, on the one hand, it is difficult to meet the different usage requirements of different users, and the user may need to purchase a plurality of different types of queuing piles to meet different use occasions. On the other hand, the applicability of the fixed-length queuing piles is small. It is often possible to be idle for a long time after being used in some occasions, neither economically nor causing additional waste due to occupying storage space.

In summary, the telescopic rod with telescopic function has high applicability and is suitable for large-scale production to reduce the cost. However, the telescopic design of the current telescopic rod is indispensably formed on the outside to form its expansion and contraction. The design of the adjustment structure, so that the rod-like structure of the queuing piles with high visual requirements or long-term use outdoors is not suitable for the telescopic structure design of the current telescopic rod, and the production and use of the fixed length queuing piles is difficult. At the same time, it meets the interests of both the producer and the user. Therefore, the telescopic pile with the telescopic function and the hidden telescopic adjustment structure design is of great significance to both the producer and the user.

Summary of the invention

An object of the present invention is to provide a hidden stepless telescopic adjustment device and a telescopic pile and an application thereof, wherein the hidden stepless telescopic adjustment device is hidden inside the telescopic pile to realize stepless expansion and contraction of the telescopic pile Adjustment, thereby obtaining the telescopic pile which is compact in appearance and suitable for being adjusted by the stepless expansion and contraction.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and an application thereof, wherein the telescopic pile has a telescopic adjustment state, so that the telescopic pile is adapted to be telescopically adjusted in the telescopic adjustment state. Achieve the appropriate length specifications.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and an application thereof, wherein the telescopic pile has a telescopic restriction state, and is adapted to adjust the telescopic adjustment of the telescopic pile in the telescopic limit state. The direction is limited by the telescopic adjustment to be given a certain force support capability, thereby maintaining the appropriate length specification. In other words, the telescopic pile of the present invention can be reliably held in the telescopic restriction state.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the telescopic pile includes an inner rod and an outer tube, wherein the inner rod is configured to be nested in The outer tube adjusts the length of the telescopic pile by telescopic movement between the outer tube and the outer tube through the inner rod.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the outer wall of the inner rod is adjusted after the telescopic pile is adjusted in the telescopic adjustment state and the telescopic restriction state No scratches are generated to ensure the appearance of the telescopic pile.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the telescopic pile further includes a sleeve, wherein the sleeve is disposed on an inner wall of the outer tube and the Between the outer walls of the inner rod, to avoid direct contact between the outer tube and the inner rod, thereby preventing the inner rod and the outer tube from rubbing against each other on the outer wall of the inner rod, thereby further The visual appearance of the appearance of the telescopic pile is guaranteed.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the telescopic pile includes the concealed stepless telescopic adjustment device, wherein the concealed stepless telescopic adjustment device is set And adapted to adjustably adjust the telescopic movement of the inner rod between the outer tube and the outer tube to form the telescopic limit state of the telescopic pile so that the telescopic pile is adapted to be telescopically adjusted The ground reaches and maintains the appropriate length specifications.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the concealed stepless telescopic adjustment device is configured to be hidden in the telescopic pile so as not to change The telescopic pile is configured to switch between the telescopic adjustment state and the telescopic restriction state by adjusting the concealed stepless telescopic adjustment device.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the inner rod has a telescopic end, wherein the concealed stepless telescopic adjustment device is configured to be connected to the Delating the telescopic end of the inner rod and including an outer tube expansion plug to adjust the force between the outer tube expansion plug and the inner wall of the outer tube to control the telescopic pile in the telescopic adjustment state and The switching between the telescopic restriction states is performed.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the concealed stepless telescopic adjustment device further includes a drive plug for adjusting the outer tube expansion by the drive plug The force between the plug and the inner wall of the outer tube.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the outer tube expansion plug has an expansion groove, wherein the drive plug has a reclining surface to pass the oblique The pushing against the inner wall of the expansion groove adjusts the force between the outer tube expansion plug and the inner wall of the outer tube.

Another object of the present invention is to provide a hidden stepless telescopic adjustment device and a telescopic pile and application, wherein the drive plug is disposed to be coupled to the telescopic end of the inner rod and interlocked with the inner rod to A force applied between the outer tube expansion plug and the inner wall of the outer tube is regulated by a relative movement between the inner rod and the outer tube.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the concealed stepless telescopic adjustment device further includes an adjustment bolt for controlling the drive plug through the adjustment bolt The relative movement between the outer tube expansion plugs adjusts the pressing of the oblique push toward the inner wall of the expansion groove, thereby adjusting the force between the outer tube expansion plug and the inner wall of the outer tube The telescopic pile is controlled to switch between the telescopic adjustment state and the telescopic restriction state.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the adjustment bolt is disposed in linkage with the inner rod to pass the inner rod and the outer tube The relative rotation between the driving plug and the outer tube expansion plug adjusts the pressing of the oblique pushing surface facing the inner wall of the expansion groove close to or away from each other, thereby adjusting the outer tube expansion plug and the The inner wall of the outer tube is force-controlled to switch between the telescopic adjustment state and the telescopic restriction state.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the concealed stepless telescopic adjustment device further includes a limit support member, wherein the limit support member is configured to Suitable for being disposed at a rear end of the adjusting bolt to limit a distance between the driving plug and the outer tube expansion plug, and further, when adjusting the driving plug and the outer tube expansion plug away from each other The outer tube expansion plug is prevented from being separated from the concealed stepless telescopic adjustment device, and thus is more stable.

Another object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and application, wherein the concealed stepless telescopic adjustment device further includes an elastic member, wherein the elastic member is configured to be adapted to be set Maintaining between the limiting support and the outer tube expansion plug to enhance the force between the adjusting bolt and the outer tube expansion plug to maintain the outer tube expansion plug and the driving plug The stability of the distance further maintains the stability of the telescopic pile in the telescopic adjustment state and the telescopic restriction state.

Another object of the present invention is to provide a hidden stepless telescopic adjustment device and a telescopic pile and an application thereof, wherein the stepless expansion and contraction of the telescopic pile can be realized by providing the hidden stepless telescopic adjustment device on the inner rod Adjustment, without changing the structure of the inner rod and the outer tube, is simple and easy.

An object of the present invention is to provide a concealed stepless telescopic adjustment device and a telescopic pile and an application thereof, wherein the concealed stepless telescopic adjustment device is hidden inside the telescopic pile to realize stepless expansion and contraction of the telescopic pile The adjustment is made to obtain the telescopic pile which is compact in appearance and suitable for being adjusted by the stepless expansion, so that the telescopic pile is suitable for a queuing pile having a high requirement for appearance.

To achieve at least one of the above objectives, the present invention provides a telescopic pile comprising:

An outer tube, wherein the outer tube has a telescopic passage;

An inner rod, wherein the inner rod has a telescopic end, wherein the inner rod is configured to be nested from the telescopic end in the outer tube, such that the inner rod is adapted The telescopic channel is telescopically moved to form a telescopic adjustment state of the telescopic pile;

a drive plug, wherein the drive plug is disposed at the telescopic end;

An outer tube expansion plug, wherein the outer tube expansion plug is disposed in the telescopic channel and coupled to the inner rod, wherein the outer tube expansion plug has an expansion groove adapted to be squeezed by the drive plug The inner wall of the expansion groove reinforces the force of the outer tube expansion plug between the telescopic channel and the outer tube, thereby restricting the inner rod from being telescopically movable to form the telescopic pile a telescopically restricted state, and adapted to adjust the force between the outer tube expansion plug and the outer tube by the driving plug to control the telescopic pile between the telescopic adjustment state and the telescopic restriction state Switch.

In an embodiment, the telescopic pile further includes a sleeve, wherein the sleeve is disposed between the outer tube and the inner rod in the telescopic channel to avoid the outer tube and the outer tube The direct contact between the inner rods prevents the inner rod and the outer tube from rubbing against each other to cause scratches on the outer wall of the inner rod, thereby ensuring the visual appearance of the appearance of the telescopic pile.

In an embodiment, the driving plug further has a reclining surface corresponding to the expansion slot to adjust the oblique pushing to adjust a distance between the driving plug and the outer tube expansion plug Facing the pressing force of the inner wall of the expansion groove, thereby adjusting the force of the outer tube expansion plug between the telescopic passage and the outer tube.

In an embodiment, the outer tube expansion plug further has a plurality of side grooves, wherein the side grooves are configured to separate the groove walls of the expansion grooves into a corresponding number of groove wall petals to be suitable for lowering The oblique pushing force against the pressing force of the inner wall of the expansion groove adjusts the force of the outer tube expansion plug between the telescopic channel and the outer tube.

In an embodiment, the telescopic pile further includes an adjusting bolt, wherein the outer tube expansion plug further has an adjusting screw hole adapted to the adjusting bolt, wherein the adjusting bolt is disposed to be the inner The rods are coupled and adapted to rotationally adjust a distance between the outer tube expansion plug and the drive plug relative to the outer tube expansion plug to pass a relative between the inner rod and the outer tube Adjusting a distance between the driving plug and the outer tube expansion plug to adjust a pressing force of the oblique pushing surface facing the inner wall of the expansion groove, thereby adjusting the outer tube expansion plug and the outer tube The telescopic pile between the inner walls is forcefully controlled to switch between the telescopic adjustment state and the telescopic restriction state.

In an embodiment, the driving plug is fixed to the telescopic end of the inner rod and is interlocked with the inner rod, and the adjusting bolt is fixed to the driving plug and interlocked with the driving plug And adjusting the distance between the outer tube expansion plug and the driving plug by controlling the adjusting bolt by relative rotation between the inner rod and the outer tube.

In an embodiment, the telescopic pile further includes a limiting support member, wherein the limiting support member is disposed at a tail end of the adjusting bolt to limit the driving plug and the outer tube expansion plug The distance from each other, and further, when the drive plug is adjusted away from the outer tube expansion plug by the adjusting bolt, the outer tube expansion plug is prevented from being disengaged from the adjusting bolt associated with the inner rod.

In an embodiment, the limiting support is provided as a screw, wherein a tail end of the adjusting bolt is provided with a screw hole adapted to the screw, so as to be suitable for screwing the screw into the The fixing of the limiting support to the end of the adjusting bolt is formed by a screw hole.

In an embodiment, the telescopic pile further includes an elastic member, wherein the elastic member is disposed between the limiting support and the outer tube expansion plug to enhance the adjusting bolt and the outer portion The force between the tube expansion plugs maintains the stability of the distance between the outer tube expansion plug and the drive plug, thereby maintaining the stability of the telescopic pile in the telescopic adjustment state and the telescopic restriction state.

In an embodiment, the telescopic pile further includes an isolation buffer sheet, wherein the isolation buffer sheet is disposed between the elastic member and the limiting support member to avoid the elastic member and the limit The bit supports are frictionally contacted in direct contact.

In an embodiment, the telescopic end of the driving plug on the inner rod is integrally formed with the inner rod as a whole.

In an embodiment, the outer tube is provided with at least one guiding rail adapted to the side groove of the outer tube expansion plug in the telescopic channel, and the telescopic adjustment state of the telescopic pile Support is provided for relative rotation between the adjustment bolt and the outer tube expansion plug.

According to another aspect of the present invention, a hidden stepless telescopic adjustment device is further provided, wherein the concealed stepless telescopic adjustment device is adapted to be disposed at a telescopic end of an inner rod, and at the inner rod a telescopic end of an outer tube is nested between the outer tube and adapted to restrict between the inner rod and the outer tube by relative rotation between the inner rod and the outer tube The telescopic movement, wherein the hidden stepless telescopic adjustment device comprises:

a drive plug, wherein the drive plug is configured to be disposed in the telescopic end in conjunction with the inner rod; and

An outer tube expansion plug, wherein the outer tube expansion plug is adapted to be disposed in the telescopic channel and coupled to the drive plug, wherein the outer tube expansion plug has an expansion slot adapted to adjust the drive plug Pressing force between the outer tube and the outer tube to adjust the force applied between the outer tube and the outer tube, thereby controlling the inner rod to the telescopic channel and the Telescopic movement between the outer tubes.

In an embodiment, the telescopic pile further includes an adjusting bolt, wherein the outer tube expansion plug further has an adjusting screw hole adapted to the adjusting bolt, wherein the adjusting bolt is set to be driven The plug is interlocked and adapted to rotationally adjust a distance between the outer tube expansion plug and the drive plug relative to the outer tube expansion plug to pass a relative between the inner rod and the outer tube Adjusting a distance between the driving plug and the outer tube expansion plug to adjust a pressing force of the oblique pushing surface facing the inner wall of the expansion groove, thereby adjusting the outer tube expansion plug and the outer tube The telescopic movement between the inner rod and the outer tube is forcefully controlled between the inner walls.

In an embodiment, the telescopic pile further includes a limiting support member, wherein the limiting support member is disposed at a tail end of the adjusting bolt to limit the driving plug and the outer tube expansion plug The distance from each other is further prevented, and when the drive plug is adjusted away from the outer tube expansion plug by the adjusting bolt, the outer tube expansion plug is prevented from coming off the hidden stepless telescopic adjustment device.

In an embodiment, the telescopic pile further includes an elastic member, wherein the elastic member is disposed between the limiting support and the outer tube expansion plug to enhance the adjusting bolt and the outer portion The force between the tube expansion plugs maintains the stability of the distance between the outer tube expansion plug and the drive plug, thereby maintaining the stability of the concealed stepless telescopic adjustment device.

According to an aspect of the invention, the invention further provides a method for adjusting a telescopic pile, wherein the adjusting method comprises the following steps:

(a) reducing the friction between an outer tube expansion plug disposed on the telescopic passage of an outer tube and the outer tube;

(b) adjusting the relative position of an inner tube nested inside the outer tube and the outer tube along the length of the outer tube;

(c) squeezing the outer tube expansion plug in a circumferential direction of the outer tube such that the outer tube expansion plug expands within the telescopic passage of the outer tube such that the telescopic pile is retained A telescopic limit state.

In an embodiment, in the step (c), driving a driving plug disposed at the telescopic end of the inner tube to move toward the outer tube expansion plug to be driven by the driving plug The inner tube of the outer tube expansion plug presses the outer tube expansion plug outwardly to expand the outer tube expansion plug within the telescoping channel of the outer tube.

In an embodiment, in the above method, the drive plug is rotated to drive the drive plug to move toward the outer tube expansion plug.

In one embodiment, in the above method, the inner tube is rotated to drive the drive plug to rotate, thereby driving the drive plug to move toward the outer tube expansion plug.

According to another aspect of the present invention, the present invention further provides a method of manufacturing a telescopic pile, wherein the manufacturing method comprises the following steps:

(A) installing an outer tube to expand the telescopic passage of the outer tube;

(B) providing a telescopic end that is driven to engage an inner tube;

(C) rotatably mounting the telescopic end of the inner tube to the telescopic passage of the outer tube, wherein the drive plug is capable of expanding the plug toward the outer tube when the inner tube is rotated Moving to expand the outer tube expansion plug in the telescoping channel of the outer tube by squeezing the outer tube expansion plug outwardly by the drive plug.

Further objects and advantages of the present invention will be fully realized from the understanding of the appended claims.

DRAWINGS

1 is a perspective perspective view of a telescopic pile according to an embodiment of the present invention.

Figure 2 is a structural exploded view of the telescopic pile according to the above embodiment of the present invention.

FIG. 3 is a structural schematic view of the telescopic pile in a telescopic adjustment state according to the above embodiment of the present invention.

FIG. 4 is a structural schematic view of the telescopic pile in a telescopically restricted state according to the above embodiment of the present invention.

Figure 5 is a cross-sectional view showing the structure of a telescopic pile according to another embodiment of the present invention.

Figure 6 is a partial perspective structural view of the telescopic pile according to the above embodiment of the present invention.

7A and 7B are schematic views showing the application of the telescopic pile according to the present invention.

detailed description

According to the claims and the disclosure of the present invention, the technical solution of the present invention is specifically as described below.

It should be understood by those skilled in the art that in the disclosure of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", " The orientation or positional relationship of the indications of "upright", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is merely for convenience of description of the present invention and The above description of the invention is not to be construed as a limitation of the invention.

It will be understood that the term "a" is understood to mean "at least one" or "one or more", that is, in one embodiment, the number of one element may be one, and in other embodiments, the element The number can be multiple, and the term "a" cannot be construed as limiting the quantity.

As shown in FIG. 1, a telescopic pile 10 according to an embodiment of the present invention is illustrated, which mainly shows a perspective view of a perspective structure of the telescopic pile 10, wherein the telescopic pile 10 includes an inner rod 11, An outer tube 12 and a concealed stepless telescopic adjustment device 100, wherein the inner rod 11 is nested in the outer tube 12 to be adapted to expand and contract along the length of the outer tube 12 and the inner rod 11 Adjusting the length of the telescopic pile 10 such that the telescopic pile 10 has a telescopic adjustment state, wherein the concealed stepless telescopic adjustment device 100 is disposed on the inner rod 11 inside the outer tube 12, and It is provided to be adapted to adjustably change its force with the outer tube 12, thereby being adapted to increase the hidden stepless telescopic adjustment device 100 by adjusting the hidden stepless telescopic adjustment device 100 The frictional force with the outer tube 12, which in turn limits the telescopic movement between the inner rod 11 and the outer tube 12, causes the telescopic pile 10 to enter a telescopically restrained state.

In this way, the telescopic pile 10 is adapted to be stretched and adjusted to an appropriate length specification in the telescopic adjustment state, and is given a certain force support capability in the telescopic restriction state in which the telescopic direction is restricted and contracted. The telescopic pile 10 is maintained at the appropriate length specification.

It is worth mentioning that the size of the friction between the hidden stepless telescopic adjustment device 100 and the outer tube 12 is adjusted by adjusting the hidden stepless telescopic adjustment device 100, thereby controlling the telescopic pile 10 Switching between the telescopic adjustment state and the telescopic restriction state, such that the telescopic pile 10 is adapted to adjust the hidden stepless expansion and contraction after being flexibly adjusted to an arbitrary length in the telescopic adjustment state. The adjustment device 100 is configured to maintain the length of the telescopic pile 10 in the telescopically restricted state. Therefore, the telescopic pile 10 can be adapted to all length specifications within a certain length range by stepless expansion and contraction adjustment. That is, the concealed telescopic adjustment device 100 is not only adapted to switch the telescopic pile between the telescopic adjustment state and the telescopic restriction state, and the concealed telescopic adjustment device 100 is adapted to enable the The telescopic pile is maintained in the telescopically restricted state.

It can be understood that the concealed stepless telescopic adjustment device 100 is connected to the inner rod 11 in the outer tube 12 and is hidden in the telescopic pile 10, so that the telescopic pile 10 has a simple appearance. Therefore, it is more suitable for the design of the telescopic structure with higher requirements for the outer tube, such as the queuing pile for guiding the queuing.

In particular, since the concealed stepless telescopic adjustment device 100 is concealed in the telescopic pile 10 and is not easily adjusted by direct contact by a user, in this embodiment of the invention, the concealed stepless The telescopic adjustment device 100 is configured to adjust the amount of friction between the concealed stepless telescopic adjustment device 100 and the outer tube 12 by rotation adjustment between the inner rod 11 and the outer tube 12.

Specifically, the structural exploded view of the telescopic pile 10 according to this embodiment of the present invention is illustrated in conjunction with FIGS. 2 and 3 of the accompanying drawings of the present invention, wherein the outer tube 12 has a telescopic passage. 121, wherein the telescopic channel 121 is formed inside the outer tube 12, the inner rod 11 has a telescopic end 111, wherein the inner rod 11 is disposed from the telescopic end 111 to the telescopic channel 121 The outer tube 12 is nested such that the inner rod 11 is adapted to telescopically move between the telescopic passage 121 and the outer tube 12 to form the telescopic adjustment state of the telescopic pile 10.

The hidden stepless telescopic adjustment device 100 has a driving plug 101 and an outer tube expansion plug 102, wherein the driving plug 101 is disposed on the telescopic end 111 of the inner rod 11, the outer tube expansion plug 102 is disposed in the telescopic channel 121 of the outer tube 12 and is coupled to the inner rod 11 in a telescopic direction of the telescopic pile 10, wherein the outer tube dilation plug 102 is configured to be adapted to be The telescoping channel 121 has a suitable frictional force with the outer tube 12 in contact with the outer tube 12, such that it is adapted to be telescopically moved between the inner rod 11 and the outer tube 12 After the telescopic pile 10 is adjusted to a certain length specification, the driving force of the driving plug 101 to the outer tube expansion plug 102 is adjusted by driving the inner rod 11 and the outer tube 12 to rotate relative to each other, thereby adjusting The friction between the outer tube expansion plug 102 and the outer tube 12 controls the telescopic pile 10 to switch between the telescopic adjustment state and the telescopic restriction state.

In detail, the outer tube expansion plug 102 includes a groove wall 1021 and has an expansion groove 1022 formed by the groove wall 1021 to drive relative rotation between the inner rod 11 and the outer tube 12. The pressing force of the driving plug 101 on the groove wall 1021 of the expansion groove 1022 is adjusted to adjust the friction between the outer tube expansion plug 102 and the outer tube 12.

It will be understood by those skilled in the art that the drive plug 101 is disposed at the telescopic end 111 of the inner rod 11, and the outer tube expansion plug 102 is disposed at the telescopic pile 10 at the telescopic pile 10. The telescopic direction is interlocked with the inner rod 11 and has a suitable frictional force with the outer tube 12 in maintaining contact with the outer tube 12, so the telescopic pile 10 is adapted to not cause the outer tube In the case of the relative rotation between the expansion plug 102 and the outer tube 12, the relative rotation between the inner rod 11 and the outer tube 12 is driven, that is, the drive plug 101 and the outer portion The relative movement between the tube expansion plugs 102 is adapted to be controlled by the relative rotation between the inner rod 11 and the outer tube 12, such that by controlling the relative relationship between the inner rod 11 and the outer tube 12 The relative movement between the drive plug 101 and the outer tube expansion plug 102 is rotationally adjusted to adjust the drive plug 101 by the relative movement between the drive plug 101 and the outer tube expansion plug 102. The pressing force of the expansion groove 1022 on the groove wall 1021, thereby adjusting the expansion of the outer tube The friction between the plug 102 and the outer tube 12.

Specifically, in this embodiment of the invention, the concealed stepless telescopic adjustment device 100 is configured to adjust the adjustment by adjusting the distance between the drive plug 101 and the outer tube expansion plug 102 The pressing force of the driving plug 101 on the groove wall 1021 of the expansion groove 1022.

In detail, as shown in FIG. 3, the expansion groove 1022 of the outer tube expansion plug 102 further forms an expansion slot 1023 in the outer tube expansion plug 102, wherein the drive plug 101 has a diagonal push surface 1011. So that the drive plug 101 forms a narrow end 1012 at one end of the outer tube expansion plug 102, wherein the narrow end 1012 corresponds to the expansion groove 1022 of the outer tube expansion plug 102 to When the drive plug 101 and the outer tube expansion plug 102 are driven to be close to each other, the narrow end 1012 adapted to the drive plug 101 enters the expansion groove 1022 through the expansion slot 1023, and causes the The inclined surface 1011 of the driving plug 101 is in contact with the groove wall 1021 at the expansion slot 1023, so that when the driving plug 101 and the outer tube expansion plug 102 are driven to further approach each other, Extending the frictional force between the telescopic channel 121 and the outer tube 12 by pressing the groove wall 1021 on the expansion groove 1022 through the inclined surface 1011, thereby limiting the The telescopic movement between the inner rod 11 and the outer tube 12 causes the telescopic pile 10 to enter the Telescopic limit state.

Further, in this embodiment of the invention, the hidden stepless telescopic adjustment device 100 further includes an adjustment bolt 103, wherein the adjustment bolt 103 is disposed in linkage with the inner rod 11, wherein The outer tube expansion plug 102 is further provided with an adjusting screw hole 1024 adapted to the adjusting bolt 103, so as to drive the adjusting bolt 103 and the relative rotation between the inner rod 11 and the outer tube 12 The relative rotation between the outer tube expansion plugs 102 is described, thereby controlling the distance between the drive plug 101 and the outer tube expansion plug 102 to adjust the drive plug 101 and the outer tube expansion plug 102 toward or away from each other. .

It is worth mentioning that in another embodiment of the invention, the adjusting bolt 103 and the driving plug 101 may be of a unitary structure.

It is worth mentioning that in this embodiment of the invention, the drive plug 101 is fixed to the inner rod 11, and the adjusting bolt 103 is fixed to the drive plug 101 such that the adjusting bolt 103 is associated with the inner rod 11 such that the adjustment bolt 103 is adapted to be driven between the inner rod 11 and the outer tube 12 and the outer tube expansion plug 102 The relative rotation causes the distance between the drive plug 101 and the outer tube expansion plug 102 to be adjusted.

In detail, in this embodiment of the invention, the inner rod 11 is provided in a tubular shape, and the drive plug 101 further has a connecting end 1013, wherein the connecting end 1013 is configured to be inserted into the inner portion The rod 11, wherein the connecting end 1013 is further provided with at least one fixing hole 10131, wherein the fixing hole 10131 is disposed to extend from a side of the connecting end 1013 toward the inside thereof to be inserted at the connecting end 1013 After the inner rod 11, the outer rod 11 is adapted to pass the inner rod 11 through a fastener 10132 (such as a conventional screw) on the outer side of the inner rod 11 and further extend into the fixing hole 10131 to drive the inner rod 11 The plug 101 is fixed to the inner rod 11 such that the drive plug 101 and the inner rod 11 are connected in linkage.

It can be understood that, in this embodiment of the invention, the tubular design of the inner rod 11 is mainly provided in a tubular shape according to the structural design of the driving plug 101 to be adapted to the inner rod 11 and the driving. The connection between the plugs 101, in some embodiments of the present invention, the inner rod 11 is not limited to a tubular shape, and may be set to other non-hollow rod shapes according to actual use requirements, and the present invention does not limit.

Further, the adjusting bolt 103 has a head 1031 and a screw 1032 extending from the head 1031, wherein the screw 1032 is provided with a thread, wherein the head 1031 and the adjusting bolt 103 are A portion of the screw 1032 that is connected to the head portion 1031 is embedded in the drive plug 101 such that the adjustment bolt 103 is coupled to the drive plug 101 and is fixed to the drive plug 101. For example, when the head 1031 is a hexagonal head, the insertion of the head 1031 into the driving plug 101 enables the adjusting bolt 103 to be associated with the driving plug 101 in the direction of rotation thereof. When the portion of the screw 1032 that is connected to the head portion 1031 is embedded in the driving plug 101 by an interference fit, the adjusting bolt 103 can be simultaneously rotated in the direction of rotation of the telescopic pile 10 It is linked to the drive plug 101.

It will be understood by those skilled in the art that in this embodiment of the invention, the concealed stepless telescopic adjustment device 100 is configured to drive the adjustment by relative rotation between the inner rod 11 and the outer tube 12. Relative rotation between the bolt 103 and the outer tube expansion plug 102, thereby controlling the drive plug 101 and the outer tube expansion plug 102 to adjust the outer tube expansion plug 102 to the telescopic passage 121 toward or away from each other. Frictional force with the outer tube 12. Therefore, the adjusting bolt 103 is disposed in linkage with the inner rod 11, and the driving plug 101 is adapted to be disposed to have a certain tolerance with the inner rod 11 in the direction of expansion and contraction of the telescopic pile 10. The force relationship can be used without limiting the linkage between the direction in which the driving plug 101 is relatively rotated between the inner rod 11 and the outer tube 12 and the inner rod 11, that is, the driving plug 101, The connection relationship between the adjustment bolt 103 and the inner rod 11 is various. The adjusting bolt 103 may also be disposed to be fixed to the inner rod 11 extending from the inner rod 11; as the driving plug 101 may also be disposed integrally with the inner rod 11 as a whole The driving plug 101 can also be arranged to be movably sleeved on the adjusting bolt 103 within a certain range of the telescopic direction of the telescopic pile 10. As long as the adjusting bolt 103 is disposed in conjunction with the inner rod 11, the present invention is not limited thereto.

In addition, it is worth mentioning that, in this embodiment of the invention, the recessed stepless telescopic adjustment device 100 is disposed in the telescopic pile 10 so as not to change the inner rod 11 and the outer tube. In the case of the structure of 12, the concealed stepless telescopic adjustment device 100 is adapted to be disposed on a common telescopic rod composed of the inner rod 11 and the outer tube 12 such that the ordinary telescopic rod is set The concealed stepless telescopic adjustment device 100 has the telescopic pile 10 and further has a stepless expansion and contraction adjustment function, which is simple and easy.

In particular, in this embodiment of the invention, the outer tube expansion plug 102 is further provided with a plurality of side grooves 1025, as shown in Figure 1, wherein the side grooves 1025 are configured to be adapted for the expansion The groove wall 1021 of the groove 1022 is divided into a corresponding number of groove wall flaps 10211 such that the groove wall 1021 is adapted to be expanded by the pressing of the inclined push surface 1011 of the drive plug 101, thereby increasing The large groove wall 10211 strongly urges the friction between the groove wall 10211 and the outer tube 12 between the telescopic channel 121 and the outer tube 12, thereby causing the telescopic pile 10 enters the telescopic restriction state.

It is worth mentioning that the arrangement of the side grooves 1025 is such that the groove wall 1021 is divided into a corresponding number of the groove wall lobes 10211, thereby reducing the pressing force required for the expansion of the groove wall 1021. The expansion and contraction state of the telescopic pile 10 reduces the interaction force between the drive plug 101 and the outer tube expansion plug 102. On the one hand, it is advantageous to reduce the loss of interaction between the driving plug 101 and the outer tube expansion plug 102, thereby increasing the service life of the telescopic pile 10; on the other hand, it is advantageous to reduce the driving of the inner rod 11 and The outer tubes 12 are rotated relative to each other to allow the telescopic pile 10 to enter the telescopically restrained state by the telescopic adjustment state, thereby being more convenient to use.

Furthermore, it will be appreciated that the telescoping pile 10 is adapted to be driven such that the inner rod 11 is driven without causing a relative rotation between the outer tube expansion plug 102 and the outer tube 12. The outer tube 12 is rotated relative to each other, so that the outer tube expansion plug 102 is disposed to have appropriate friction in maintaining the contact between the outer tube 12 and the outer tube 12 in the telescopic adjustment state of the telescopic pile 10. force. However, the force required to drive the inner rod 11 and the outer tube 12 to rotate relative to each other to cause the telescopic pile 10 to enter the telescopically restrained state from the telescopic adjustment state is reduced, so that the The requirement of the frictional force between the outer tube expansion plug 102 and the outer tube 12 in the telescopic adjustment state of the telescopic pile 10 is also relatively reduced. In this way, on the one hand, the telescopic adjustment of the telescopic pile 10 in the telescopic adjustment state is more labor-saving, and on the other hand, the friction loss between the outer tube expansion plug 102 and the outer tube 12 is also reduced. Thereby the service life of the telescopic pile 10 is further extended.

Further, the pressing force required for the expansion of the groove wall 1021 is reduced by the arrangement of the side groove 1025, thus reducing the flexibility requirement for the material used for the outer tube expansion plug 102, thereby increasing The selected range of materials that can be used for the outer tube expansion plug 102 is further advantageous for selecting a material with better wear resistance to further improve the service life of the telescopic pile 10, and is advantageous for economical consideration in combination with economic considerations. The material is used to reduce the production cost of the telescopic pile 10.

It is to be noted that, in some embodiments of the present invention, the outer tube 12 is further adapted to be adapted to the side slot 1025 in the telescopic channel 121 in the telescopic direction of the telescopic pile 10. At least one guide rail, such that the interaction between the outer tube expansion plug 102 and the outer tube 12 is restricted by the interaction between the side groove 1025 and the outer tube expansion plug 102 through the guide rail Rotation, and thus the telescopic adjustment state of the telescopic pile 10, provides support for relative rotation between the adjustment bolt 103 and the outer tube expansion plug 102.

It will be understood by those skilled in the art that in the telescopic adjustment state of the telescopic pile 10, the relative rotation between the telescopic passage 121 and the outer tube 12 is restricted by limiting the expansion of the outer tube expansion plug 102. Controlling the relative rotation between the adjusting bolt 103 and the outer tube expansion plug 102 relative to the outer tube 12 and the outer tube 12, thereby controlling the driving plug 101 and the outer tube expansion plug 102 is close to or away from each other, and the relative rotation of the outer tube expansion plug 102 between the telescopic channel 121 and the outer tube 12 is limited. The outer tube is expanded by the outer tube 102 to the telescopic pile. The telescopic adjustment state of 10 is limited to the friction between the outer tube 12, and the interaction force between the side groove 1025 and the outer tube expansion plug 102 is restricted by the guide rail, As an example of the present invention, as long as the outer tube expansion plug 102 is provided to have a suitable interaction force with the outer tube 12 in a direction in which the inner rod 11 and the outer tube 12 are relatively rotated. That is, the invention is not limited thereto.

It is to be noted that, in this embodiment of the invention, the telescopic pile 10 further includes a limiting support member 1033, wherein the limiting support member 1033 is disposed at the tail end of the adjusting bolt 103, that is, An end of the screw 1032 opposite to the end of the head 1031 for controlling the drive plug 101 and the outer tube expansion plug by relative rotation between the inner rod 11 and the outer tube 12 When the 102 are away from each other, the distance between the driving plug 101 and the outer tube expansion plug 102 is restricted from each other, thereby preventing the outer tube expansion plug 102 from being disengaged from the adjusting bolt 103, thus making the telescopic pile 10 The telescopic adjustment is more stable.

Further, in this embodiment of the invention, the limiting support 1033 is provided as a screw 10331, wherein the adjusting bolt 103 is further provided at its tail end with a screw adapted to the screw 10331. The hole 10321 is formed by screwing the screw 10331 into the screw hole 10321 to form the fixing support 1033 to the adjusting bolt 103.

It should be understood by those skilled in the art that the screw 10331 is only an example of the limit support 1033 and is not limited. In some embodiments of the present invention, the limit support 1033 may have various deformations, such as The limit support 1033 may also be disposed to pass through a rod of the adjustment bolt 103 laterally or be integrally formed integrally with the adjustment bolt 103 and adapted to be sized to avoid the The outer tube expansion plug 102 is detached from the adjusting bolt 103, which is not limited in the present invention.

Further, in this embodiment of the invention, the hidden stepless telescopic adjustment device 100 further includes an elastic member 104, wherein the elastic member 104 is disposed on the limit support member 1033 and the outer tube Between the expansion plugs 102 to enhance the force between the outer tube expansion plug 102 and the thread of the adjustment bolt 103, thereby maintaining the stability of the distance between the outer tube expansion plug 102 and the drive plug 101. The stability of the telescopic pile 10 in the telescopic adjustment state and the telescopic restriction state is further ensured.

In detail, in this embodiment of the invention, the elastic member 104 is disposed as a spring 1041, wherein the spring 1041 is disposed on the limiting support 1033 and the outer portion of the screw 1032. Between the tube expansion plugs 102, the telescopic adjustment state of the telescopic pile 10 is compressed, thereby reducing the force required to drive the outer tube expansion plug 102 and the drive plug 101 closer to each other, so as to pass The relative rotation between the inner rod 11 and the outer tube 12 drives the outer tube expansion plug 102 and the drive plug 101 to be close to each other such that the telescopic pile 10 enters the telescopic restriction state.

It will be understood by those skilled in the art that in some embodiments of the present invention, the elastic member 104 may also be disposed to be stretched to the outer tube expansion in the telescopic adjustment state of the telescopic pile 10. Between the plug 102 and the drive plug 101 to reduce the force required to drive the outer tube expansion plug 102 and the drive plug 101 to each other, thereby facilitating passage of the inner rod 11 and the outer tube 12 The relative rotation between the outer tube expansion plug 102 and the drive plug 101 causes the telescopic pile 10 to enter the telescopic restriction state, which is not limited in the present invention.

Further, in this embodiment of the invention, the hidden stepless telescopic adjustment device 100 further includes an isolation buffer sheet 105, wherein the isolation buffer sheet 105 is disposed on the spring 1041 and the limit support Between the members 1033, the spring 1041 and the limiting support member 1033 are adapted to be passed through the isolation buffer sheet 105 when the limiting support member 1033 is rotated in conjunction with the adjusting bolt 103. Isolating to avoid friction between the spring 1041 and the limit support 1033 in direct contact, and is adapted to pass the relative movement between the isolation buffer 105 and the limit support 1033. The buffering action prevents the spring 1041 from being driven by the limiting support 1033 to protect the outer tube expansion plug 102 and the limiting support 1033 from being worn by the spring 1041, thereby maintaining the The stability of the hidden stepless telescopic adjustment device 100 is extended and the service life of the telescopic pile 10 is extended.

It is worth mentioning that, in this embodiment of the invention, the telescopic pile 10 further includes a sleeve 13 , wherein the sleeve 13 is nested at one end of the outer tube 12 in the telescopic channel 121 The inner rod 11 is nested in the sleeve 13 such that the sleeve 13 is disposed between the inner rod 11 and the outer tube 12 at the telescopic passage 121, thereby The direct contact between the outer tube 12 and the inner rod 11 is avoided by the sleeve 13 to prevent the inner rod 11 and the outer tube 12 from rubbing against each other due to telescopic movement or relative rotation. The outer wall of the inner rod 11 is scratched, thereby ensuring the visual appearance of the appearance of the telescopic pile 10.

3 and 4, in order to further describe the working principle of the telescopic pile 10 of the embodiment of the present invention, the telescopic pile 10 is in the telescopic adjustment state and the telescopic restriction state. The structure of the telescopic pile 10 in the telescopic adjustment state is mainly shown in FIG. 3 , wherein FIG. 4 mainly shows the structure of the telescopic pile 10 in the telescopically restricted state. schematic diagram.

In the telescopic adjustment state of the telescopic pile 10, when the inner rod 11 and the outer tube 12 are driven to telescope, the concealed stepless telescopic adjustment device 100 is fixed at the The telescopic end 111 of the inner rod 11 is moved relative to the outer tube 12 by the inner rod 11 . At this time, the outer tube expansion plug 102 of the concealed stepless telescopic adjustment device 100 maintains the outer tube 12 in contact with the telescopic channel 121 to have a suitable frictional force with the outer tube 12, and The elastic member 104 disposed as the spring 1041 is compressed due to the greater distance between the outer tube expansion plug 102 and the drive plug 11, such that the outer tube expands the plug 102 The thread of the adjusting screw hole 1024 is tightly engaged with the thread of the screw 1032 of the adjusting bolt 103, so that the outer tube expansion plug 102 and the adjusting bolt 103 are not prevented from interfering between the threads. The gap that is reserved by the occlusion is loosened, so that the distance between the drive plug 101 and the outer tube expansion plug 102 is stably maintained.

After the telescopic pile 10 is adjusted to a suitable length by the telescopic movement between the inner rod 11 and the outer tube 12, the inner rod 11 and the outer tube 12 are driven to rotate relative to each other in a specific direction. The adjusting bolt 103 is relatively rotated with the outer tube 12 by being interlocked with the inner rod 11, and the outer tube expanding plug 102 is not subjected to a suitable frictional force with the outer tube 12. The adjusting bolt 103 is driven to maintain the outer tube expansion plug 102 relatively stationary with respect to the outer tube 12 in the direction of relative rotation, that is, the adjusting bolt 103 and the outer tube expansion plug 102 are relatively rotated. The outer tube expansion plug 102 is thus driven closer to or away from the drive plug 101 by the adjustment bolt 103.

When the relative rotation between the adjusting bolt 103 and the outer tube expansion plug 102 in the specific direction is adapted to drive the outer tube expansion plug 102 and the driving plug 101 to be close to each other, since the elastic member 104 is The force exerted by the compression on the outer tube expansion plug 102 is adapted to facilitate movement of the outer tube expansion plug 102 and the drive plug 101 in close proximity to each other. Therefore, it is more advantageous to reduce the adjusting bolt 103 and the outer portion when the outer tube expansion plug 102 and the driving plug 101 are brought close to each other when the inner rod 11 and the outer tube 12 are driven to rotate relative to each other. The force between the tube expansion plugs 102 maintains the relative rotation between the outer tube expansion plugs 102 and the outer tube 12.

When the driving plug 101 and the outer tube expansion plug 102 are in close contact with each other, the drive plug 101 and the outer tube are continuously controlled to drive the inner rod 11 and the outer tube 12 to rotate relative to each other. The expansion plugs 102 are adjacent to each other, and the narrow end 1012 of the drive plug 101 extends into the expansion groove 1022 of the outer tube expansion plug 102, and the inclined push surface 1011 continuously presses the groove wall 1021, and thus The force between the outer tube expansion plug 102 and the outer tube 12 is continuously enhanced, so that the friction between the outer tube expansion plug 102 and the outer tube 12 is continuously increased, thereby The telescopic pile 10 has a certain bearing capacity in its expansion and contraction direction and is no longer suitable for being driven to expand and contract, that is, the telescopic pile 10 enters the telescopic restriction state.

It is worth mentioning that, in the telescopically restricted state of the telescopic pile 10, the elastic member 104 disposed as the spring 1041 can be set to be still in a compressed state, so as to pass the spring. The force of the outer tube expansion plug 102 of 1041 maintains the stability of the distance between the outer tube expansion plug 102 and the drive plug 101, thereby avoiding the outer tube expansion plug 102 and the drive plug 101. The loosening of the telescopic pile 10 in the telescopically restrained state is maintained, and the stability of the telescopic pile 10 in the telescopically restrained state is maintained.

In the telescopically restricted state of the telescopic pile 10, the inner rod 11 and the outer tube 12 are relatively rotated in another specific direction, and the adjusting bolt 103 is interlocked with the inner rod 11 While the relative rotation occurs between the outer tube 12 and the outer tube 12, the outer tube expansion plug 102 maintains a relatively static relationship with the outer tube 12 due to a large frictional force between the outer tube 12, and thus The adjusting bolt 103 and the outer tube expansion plug 102 are relatively rotated, so that the outer tube expansion plug 102 and the driving plug 101 are separated from each other, so that the driving plug 101 is opposite to the outer The pressing force of the tube expansion plug 102 is reduced, while the friction between the outer tube expansion plug 102 and the outer tube 12 is reduced by the force between the outer tube expansion plug 102 and the outer tube 12. Small and small, that is, the telescopic pile 10 enters the telescopic adjustment state by the telescopic restriction state.

It will be understood by those skilled in the art that in the description of this embodiment of the invention, the friction between the outer tube expansion plug 102 and the outer tube 12 is understood to be the outer tube expansion plug 102 and the outer portion. The maximum static friction between the tubes 12, i.e., the maximum frictional force that can be generated between the outer tube expansion plug 102 and the outer tube 12, and thus the outer friction The friction between the tube expansion plug 102 and the outer tube 12 is mainly determined by the pressing force between the outer tube expansion plug 102 and the outer tube 12, and the outer tube expansion plug 102 is The pressing force between the outer tubes 12 is in turn determined by the pressing force of the inclined surface 1011 of the driving plug 101 against the groove wall 1021 of the outer tube expansion plug 102. Accordingly, the main principle of the present invention is to adjust the drive by controlling the relative movement between the drive plug 101 and the outer tube expansion plug 102 by relative rotation between the inner rod 11 and the outer tube 12. a force between the plug 101 and the outer tube expansion plug 102, and thereby adjusting the hidden stepless telescopic adjustment device 100 and the outer portion by relative rotation adjustment between the inner rod 11 and the outer tube 12 The amount of friction between the tubes 12.

As shown in FIG. 5 and FIG. 6, a telescopic pile 10A according to another embodiment of the present invention is illustrated, which mainly shows a schematic structural view of the telescopic pile 10A, wherein the telescopic pile 10A includes an inner rod. 11A, an outer tube 12A and a concealed stepless telescopic adjustment device 100A, wherein the inner rod 11A is nested in the outer tube 12A to be adapted to be along the length of the outer tube 12A and the inner rod 11A The lengthwise adjustment of the length of the telescopic pile 10A causes the telescopic pile 10A to have a telescopic adjustment state, wherein the concealed stepless telescopic adjustment device 100A is disposed on the inner rod 11A inside the outer tube 12A And being adapted to adjustably adjust the force between it and the outer tube 12A, thereby being adapted to increase the hidden stepless telescopic adjustment by adjusting the concealed stepless telescopic adjustment device 100A The frictional force between the device 100A and the outer tube 12A, thereby restricting the telescopic movement between the inner rod 11A and the outer tube 12A, causes the telescopic pile 10A to enter a telescopically restrained state.

In this manner, the telescopic pile 10A is adapted to be stretched and adjusted to an appropriate length specification in the telescopic adjustment state, and is provided with a certain force supporting capability in the telescopically restricted state in a telescopic direction thereof. The telescopic pile 10A is maintained at the appropriate length specification.

Specifically, the outer tube 12A has a telescopic passage 121A, wherein the telescopic passage 121A is formed inside the outer tube 12A, and the inner rod 11A has a telescopic end 111A, wherein the inner rod 11A is set to The telescopic end 111A is nested in the outer tube 12A in the telescopic channel 121A such that the inner rod 11A is adapted to be telescopically movable between the telescopic channel 121A and the outer tube 12A. The telescopic adjustment state of the telescopic pile 10A is described.

The concealed stepless telescopic adjustment device 100A has a driving plug 101A and an outer tube expansion plug 102A, wherein the driving plug 101A is disposed at the telescopic end 111A of the inner rod 11A, and the outer tube expansion plug 102A is disposed in the telescopic channel 121A of the outer tube 12A and is coupled to the inner rod 11A in a telescopic direction of the telescopic pile 10A, wherein the outer tube dilation plug 102A is configured to be adapted to be The telescopic channel 121A has a suitable frictional force with the outer tube 12A in contact with the outer tube 12A, such that it is adapted to be telescopically moved between the inner rod 11A and the outer tube 12A. After the telescopic pile 10A is adjusted to a certain length specification, the driving force of the driving plug 101A to the outer tube expansion plug 102A is adjusted by driving the inner rod 11A and the outer tube 12A to rotate relative to each other, thereby adjusting The friction between the outer tube expansion plug 102A and the outer tube 12A controls the telescopic pile 10A to switch between the telescopic adjustment state and the telescopic restriction state.

In detail, the outer tube expansion plug 102A includes a groove wall 1021A and has an expansion groove 1022A formed by the groove wall 1021A to drive relative rotation between the inner rod 11A and the outer tube 12A. The pressing force of the driving plug 101A on the groove wall 1021A of the expansion groove 1022A is adjusted to adjust the frictional force between the outer tube expansion plug 102A and the outer tube 12A.

It is worth mentioning that the drive plug 101A is disposed on the telescopic end 111A of the inner rod 11A, and the outer tube expansion plug 102A is disposed to extend and contract in the telescopic pile 10A of the telescopic passage 121A. The direction is interlocked with the inner rod 11A and has a suitable frictional force with the outer tube 12A in maintaining contact with the outer tube 12A, so the telescopic pile 10A is adapted to not cause the outer tube to expand. In the case of the relative rotation between the plug 102A and the outer tube 12A, the relative rotation between the inner rod 11A and the outer tube 12A is driven, that is, the driving plug 101A and the outer tube The relative movement between the expansion plugs 102A is adapted to be controlled by relative rotation between the inner rod 11A and the outer tube 12A, such as by controlling the relative rotation between the inner rod 11A and the outer tube 12A. Adjusting the relative movement between the drive plug 101A and the outer tube expansion plug 102A to adjust the drive plug 101A by the relative movement between the drive plug 101A and the outer tube expansion plug 102A The pressing force of the expansion groove 1022A on the groove wall 1021A, thereby adjusting the Expansion plug outer tube 102A and the frictional force between the outer tube 12A.

In detail, the expansion groove 1022A of the outer tube expansion plug 102A further forms an expansion notch 1023A in the outer tube expansion plug 102A, wherein the drive plug 101A has a reclining surface 1011A to enable the drive The plug 101A forms a narrow end 1012A near one end of the outer tube expansion plug 102A, wherein the narrow end 1012A corresponds to the expansion groove 1022A of the outer tube expansion plug 102A to the drive plug 101A When the outer tube expansion plugs 102A are driven close to each other, the narrow end 1012A adapted to the drive plug 101A enters the expansion groove 1022A through the expansion slot 1023A, and the said drive plug 101A is The inclined pushing surface 1011A is in contact with the groove wall 1021A at the expansion notch 1023A, so that when the driving plug 101A and the outer tube expansion plug 102A are driven to be closer to each other, the oblique pushing is suitable The surface 1011A presses the groove wall 1021A in the expansion groove 1022A to increase the friction between the groove wall 1021A between the telescopic channel 121A and the outer tube 12A, thereby limiting the inner rod 11A and the The telescopic movement between the outer tubes 12A causes the expansion and contraction 10A into the state scale limits.

Further, in this embodiment of the invention, the concealed stepless telescopic adjustment device 100A further includes an adjustment bolt 103A, wherein the adjustment bolt 103A is disposed in conjunction with the outer tube expansion plug 102A, wherein The driving plug 101A is further provided with an adjusting screw hole 1014A adapted to the adjusting bolt 103A, such that the adjusting bolt 103A is driven by the relative rotation between the inner rod 11A and the outer tube 12A. The relative rotation between the plugs 101A is driven to thereby control the distance between the drive plug 101A and the outer tube expansion plug 102A by adjusting the drive plug 101A and the outer tube expansion plug 102A toward or away from each other.

It is worth mentioning that in another embodiment of the present invention, the adjusting bolt 103A and the outer tube expansion plug 102A may also be a unitary structure.

It is to be noted that, in this embodiment of the invention, the driving plug 101A is fixed to the inner rod 11A, and the inner rod 11A and the outer tube 12A are relatively rotated in the direction and the inner portion The rod 11A is interlocked, and the adjusting bolt 103A is fixed to the outer tube expansion plug 102A such that the adjusting bolt 103A is opposite to the outer tube in the direction in which the inner rod 11A and the outer tube 12A are relatively rotated. 12A is interlocked such that the adjusting bolt 103A is adapted to be rotationally driven relative to the driving plug 101A by relative rotation between the inner rod 11A and the outer tube 12A, thereby adjusting the driving The distance between the plug 101A and the outer tube expansion plug 102A.

In detail, in this embodiment of the invention, the inner rod 11A is provided in a tubular shape, and the drive plug 101A further has a connecting end 1013A, wherein the connecting end 1013A is configured to be inserted into the inner portion The rod 11A, wherein the connecting end 1013A is further provided with at least one fixing hole 10131A, wherein the fixing hole 10131A is disposed to extend from a side of the connecting end 1013A toward the inside thereof to be inserted at the connecting end 1013A After the inner rod 11A is adapted to pass through the inner rod 11A through a fastener 10132A (such as a conventional screw) on the outer side of the inner rod 11A and further extend into the fixing hole 10131A to drive the inner rod 11A. The plug 101A is fixed to the inner rod 11A such that the drive plug 101A and the inner rod 11A are connected in linkage.

Further, the adjusting bolt 103A has a head 1031A and a screw 1032A extending from the head 1031A, wherein the screw 1032A is provided with a thread, wherein the head 1031A of the adjusting bolt 103A A portion of the screw 1032A connected to the head portion 1031A is embedded in the outer tube expansion plug 102A such that the adjustment bolt 103A is coupled to the outer tube expansion plug 102A and is fixed to the outer tube The plug 102A is expanded. For example, when the head 1031A is a hexagonal head, the insertion of the head 1031A in the outer tube expansion plug 102A enables the adjustment bolt 103A to be associated with the outer tube expansion plug 102A in the direction of rotation thereof. In another example, when the portion of the screw 1032A that is connected to the head portion 1031A is embedded in the outer tube expansion plug 102A by an interference fit, the adjustment bolt 103A can be rotated in the direction of rotation and the expansion and contraction. The direction of expansion and contraction of the pile 10A is simultaneously linked to the outer tube expansion plug 102A.

Those skilled in the art will appreciate that in this embodiment of the invention, the concealed stepless telescoping adjustment device 100A is configured to drive the adjustment by relative rotation between the inner rod 11A and the outer tube 12A. Relative rotation between the bolt 103A and the drive plug 101A, thereby controlling the drive plug 101A and the outer tube expansion plug 102A to adjust the outer tube expansion plug 102A to the telescopic channel 121A and the same distance or away from each other. The friction between the outer tubes 12A is described. Therefore, the adjusting bolt 103A is disposed in association with the outer tube expansion plug 102A, and the driving plug 101A is adapted to be disposed to have a certain length in the expansion and contraction direction of the telescopic pile 10A and the inner rod 11A. a force relationship, and the inner rod 11A is interlocked with the inner rod 11A in a direction in which the inner rod 11A and the outer tube 12A are relatively rotated, that is, the driving plug 101A, the adjusting bolt 103A, and the inner rod 11A The connection between the two is diverse. The driving plug 101A may also be disposed integrally with the inner rod 11A as a whole; as the driving plug 101A may also be arranged to be movable within a certain range of the telescopic direction of the telescopic pile 10A. It is fixed to the inner rod 11A. As long as the adjusting bolt 103A is disposed in conjunction with the outer tube expansion plug 102A, the present invention is not limited thereto.

In particular, in this embodiment of the invention, the outer tube expansion plug 102A is further provided with a plurality of side grooves 1025A, wherein the side grooves 1025A are provided to fit the groove wall 1021A of the expansion groove 1022A Dividing into a corresponding number of groove wall flaps 10211A, such that the groove wall 1021A is adapted to be expanded by the pressing of the inclined push surface 1011A of the drive plug 101A, thereby increasing the groove wall flap 10211A The force between the telescopic passage 121A and the outer tube 12A reinforces the friction between the groove wall flap 10211A and the outer tube 12A, so that the telescopic pile 10A enters the telescopic restriction state.

It is worth mentioning that the arrangement of the side grooves 1025A is such that the groove wall 1021A is divided into a corresponding number of the groove wall lobes 10211A, thereby reducing the pressing force required for the expansion of the groove wall 1021A, and further The expansion and contraction restriction state of the telescopic pile 10A reduces the interaction force between the drive plug 101A and the outer tube expansion plug 102A. On the one hand, it is advantageous to reduce the loss of interaction between the driving plug 101A and the outer tube expansion plug 102A, thereby increasing the service life of the telescopic pile 10A; on the other hand, it is advantageous to reduce the driving of the inner rod 11A and The outer tubes 12A are rotated relative to each other to allow the telescopic pile 10A to enter the telescopically restrained state by the telescopic adjustment state, thereby being more convenient to use.

Further, it can be understood that the telescopic pile 10A is adapted to be driven such that the inner rod 11A is driven without causing a relative rotation between the outer tube expansion plug 102A and the outer tube 12A. The outer tube 12A is relatively rotated, so that the outer tube expansion plug 102A is disposed to have appropriate friction in maintaining the contact between the outer tube 12A and the outer tube 12A in the telescopic adjustment state of the telescopic pile 10A. force. However, the force required to drive the inner rod 11A and the outer tube 12A to rotate relative to each other to cause the telescopic pile 10A to enter the telescopic restriction state from the telescopic adjustment state is reduced, so that the force is reduced. The requirement of the frictional force between the outer tube expansion plug 102A and the outer tube 12A in the telescopic adjustment state of the telescopic pile 10A is also relatively lowered. In this way, on the one hand, the telescopic adjustment of the telescopic pile 10A in the telescopic adjustment state is more labor-saving, and on the other hand, the friction between the outer tube expansion plug 102A and the outer tube 12A is reduced. Thereby the service life of the telescopic pile 10A is further extended.

Further, the pressing force required for the expansion of the groove wall 1021A is lowered by the arrangement of the side groove 1025A, thus reducing the flexibility requirement for the material used for the outer tube expansion plug 102A, thereby increasing The selected range of materials that can be used for the outer tube expansion plug 102A is further advantageous for selecting a material with better wear resistance to further improve the service life of the telescopic pile 10A, and is advantageous for economical consideration in combination with economic considerations. The material is used to reduce the production cost of the telescopic pile 10A.

It is to be noted that, in some embodiments of the present invention, the outer tube 12A is further disposed at least in the telescopic channel 121A in the telescopic direction of the telescopic pile 10A with at least the side groove 1025A. a guide rail such that the relative rotation between the outer tube expansion plug 102A and the outer tube 12A is further restricted by the interaction between the side groove 1025A and the outer tube expansion plug 102A by the guide rail Further, the direction in which the inner rod 11A and the outer tube 12A rotate relative to each other provides support for the linkage between the outer tube expansion plug 102A and the outer tube 12A.

In particular, in this embodiment of the invention, the telescopic pile 10A further includes a limit support member 1033A, wherein the limit support member 1033A is disposed at a tail end of the adjustment bolt 103A, that is, the screw An opposite end of the end of the 1032A connected to the head 1031A to control the drive plug 101A and the outer tube expansion plug 102A away from each other by relative rotation between the inner rod 11A and the outer tube 12A At this time, the distance between the driving plug 101A and the outer tube expansion plug 102A is restricted from each other, thereby preventing the driving plug 101A from being disengaged from the adjusting bolt 103A, thereby making the telescopic adjustment of the telescopic pile 10A more stable.

Further, in this embodiment of the invention, the limiting support 1033A is provided as a screw 10331A, wherein the adjusting bolt 103A is further provided at its tail end with a screw adapted to the screw 10331A. The hole 10321A is such that the screw 10331A is screwed into the screw hole 10321A to form the fixing support 1033A to the fixing bolt 103A.

It should be understood by those skilled in the art that the screw 10331A is only an example of the limit support 1033A, and is not limited thereto. In some embodiments of the present invention, the limit support 1033A may have various deformations, such as The limit support 1033A may also be disposed to pass through a rod of the adjusting bolt 103A, or is integrally formed integrally with the adjusting bolt 103A and adapted to be sized to avoid the The driving plug 101A is detached from the adjusting bolt 103A, which is not limited in the present invention.

Further, in this embodiment of the invention, the hidden stepless telescopic adjustment device 100A further includes an elastic member 104A, wherein the elastic member 104A is disposed on the limit support member 1033A and the drive plug Between 101A, the force between the driving plug 101A and the thread of the adjusting bolt 103A is enhanced, thereby maintaining the stability of the distance between the outer tube expansion plug 102A and the driving plug 101A, thereby ensuring The stability of the telescopic pile 10A in the telescopic adjustment state and the telescopic restriction state.

In detail, in this embodiment of the invention, the elastic member 104A is provided as a spring 1041A, wherein the spring 1041A is placed over the screw 1032A on the limit support 1033A and the drive Between the plugs 101A, the telescopic adjustment state of the telescopic pile 10A is compressed, thereby reducing the force required to drive the outer tube expansion plug 102A and the drive plug 101A closer to each other, so as to pass the The relative rotation between the inner rod 11A and the outer tube 12A drives the outer tube expansion plug 102A and the drive plug 101A close to each other such that the telescopic pile 10A enters the telescopic restriction state.

It will be understood by those skilled in the art that in some embodiments of the present invention, the elastic member 104A may also be disposed to be stretched to the outer tube expansion in the telescopic adjustment state of the telescopic pile 10A. Between the plug 102A and the drive plug 101A, to reduce the force required to drive the outer tube expansion plug 102A and the drive plug 101A close to each other, thereby facilitating passage of the inner rod 11A and the outer tube 12A. The relative rotation between the outer tube expansion plug 102A and the drive plug 101A causes the telescopic pile 10A to enter the telescopic restriction state, which is not limited in the present invention.

Further, in this embodiment of the invention, the hidden stepless telescopic adjustment device 100A further includes an isolation buffer sheet 105A, wherein the isolation buffer sheet 105A is disposed on the spring 1041A and the limit support Between the members 1033A, the spring 1041A and the limit support member 1033A are adapted to be passed through the isolation buffer sheet 105A when the limit support member 1033A is rotated in conjunction with the adjustment bolt 103A. Isolating to avoid friction between the spring 1041A and the limit support 1033A in direct contact, and is adapted to pass the relative movement between the isolation buffer 105A and the limit support 1033A. The buffering action prevents the spring 1041A from being driven by the limiting support 1033A to protect the driving plug 101A and the limiting support 1033A from being worn by the spring 1041A, thereby maintaining the hiding. The stability of the stepless telescopic adjustment device 100A and the service life of the telescopic pile 10A are extended.

It is to be noted that, in this embodiment of the invention, the telescopic pile 10A further includes a sleeve 13A, wherein the sleeve 13A is nested at one end of the outer tube 12A in the telescopic channel 121A. The inner rod 11A is nested in the sleeve 13A, such that the sleeve 13A is disposed between the inner rod 11A and the outer tube 12A in the telescopic passage 121A, thereby The direct contact between the outer tube 12A and the inner rod 11A is avoided by the sleeve 13A, thereby preventing the inner rod 11A and the outer tube 12A from rubbing against each other due to telescopic movement or relative rotation. The outer wall of the inner rod 11A is scratched, thereby ensuring the visual appearance of the appearance of the telescopic pile 10A.

It will be understood by those skilled in the art that in the description of this embodiment of the invention, the friction between the outer tube expansion plug 102A and the outer tube 12A is understood to be the outer tube expansion plug 102A and the outer portion. The maximum static friction between the tubes 12A, that is, the maximum frictional force that can be generated between the outer tube expansion plugs 102A and the outer tube 12, and thus the outer friction The friction between the tube expansion plug 102A and the outer tube 12A is mainly determined by the pressing force between the outer tube expansion plug 102A and the outer tube 12A, and the outer tube expansion plug 102A is The pressing force between the outer tubes 12A is in turn determined by the pressing force of the inclined surface 1011A of the driving plug 101A on the groove wall 1021A of the outer tube expansion plug 102A. Accordingly, the main principle of the present invention is to adjust the drive by controlling the relative movement between the drive plug 101A and the outer tube expansion plug 102A by the relative rotation between the inner rod 11A and the outer tube 12A. a force between the plug 101A and the outer tube expansion plug 102A, and further adjusting the hidden stepless telescopic adjustment device 100A and the outer portion by relative rotation adjustment between the inner rod 11A and the outer tube 12A The amount of friction between the tubes 12A.

Further, referring to Figures 7A and 7B of the accompanying drawings of the present invention, there is mainly shown a schematic view of the use of the telescopic pile 10 (A) of the present invention as a queuing pile, wherein the inner rod 11 (A) and the outer tube 12 (A) are passed through The height adjustment between the queuing piles can be achieved by the telescopic adjustment, so that the queuing pile has better applicability and is suitable for being stored and transported by shrinkage, thereby saving the storage and transportation space of the queuing pile. .

In addition, it is worth mentioning that the concealed stepless telescopic adjustment device 100 and the concealed stepless telescopic adjustment device 100A of the foregoing two embodiments are disposed after the telescopic pile 10 (A), and are not The appearance of the telescopic pile 10 (A) is shown, that is, the hidden stepless telescopic adjustment device 100 and the concealed stepless telescopic adjustment device 100A are in the telescopic pile 10 (A). On the one hand, the telescopic pile 10 (A) can be adjusted by telescopic expansion, and on the other hand, it is not formed on the appearance of the telescopic pile 10 (A) such that the telescopic pile 10 (A) The structural design capable of being telescopically adjusted is such that the telescopic pile 10 (A) is suitable for the queuing pile which has a high requirement for appearance.

According to another aspect of the present invention, the present invention further provides a method for adjusting a telescopic pile, wherein the adjusting method comprises the following steps:

(a) reducing the friction between an outer tube expansion plug 102 and the outer tube 12 disposed in the telescopic channel 121 of an outer tube 12;

(b) adjusting the relative position of an inner tube 11 and the outer tube 12 nested inside the outer tube 12 along the length direction of the outer tube 12;

(c) squeezing the outer tube expansion plug 102 in a circumferential direction of the outer tube 12 such that the outer tube expansion plug 102 expands within the telescopic passage 121 of the outer tube 12 to cause the The telescopic pile 10 is held in a telescopically restricted state.

(A) installing an outer tube expansion plug 102 in an outer tube 12 telescopic channel 121;

(B) providing a drive plug 101 at the telescopic end 111 of an inner tube 11;

(C) rotatably mounting the telescopic end 111 of the inner tube 11 to the telescopic channel 121 of the outer tube 12, wherein the drive plug 101 is capable of being rotated when the inner tube 11 is rotated The direction of the outer tube expansion plug 102 is moved to press the outer tube expansion plug 102 outwardly by the drive plug 101 to cause the outer tube expansion plug 102 to be within the telescopic channel 121 of the outer tube 12. Swell.

Those skilled in the art should understand that the embodiments of the present invention described in the above description and the accompanying drawings are only by way of illustration and not limitation. The object of the invention has been achieved completely and efficiently. The present invention has been shown and described with respect to the embodiments of the present invention, and the embodiments of the present invention may be modified or modified without departing from the principles.

Claims

A telescopic pile characterized by comprising:

An outer tube, wherein the outer tube has a telescopic passage;

An inner rod, wherein the inner rod has a telescopic end, wherein the inner rod is configured to be nested from the telescopic end in the outer tube, such that the inner rod is adapted Forming a telescopic adjustment state of the telescopic pile in the telescopic channel being telescopically moved; and

A concealed stepless telescopic adjustment device, wherein the concealed stepless telescopic adjustment device is coupled to the telescopic end, wherein the concealed stepless telescopic adjustment device is configured to be adapted to pass the inner rod and the The relative rotation between the outer tubes adjusts the amount of friction between the telescopic passage and the outer tube of the concealed stepless telescopic adjustment device to be adapted to pass between the inner rod and the outer tube The relative rotation increases the friction between the hidden stepless telescopic adjustment device and the outer tube, thereby restricting the telescopic movement between the inner rod and the outer tube to form a telescopic expansion of the telescopic pile Restricting the state, and is adapted to adjust the frictional force between the hidden stepless telescopic adjustment device and the outer tube by relative rotation between the inner rod and the outer tube to control the telescopic pile Switching between the telescopic adjustment state and the telescopic restriction state.
The telescopic pile according to claim 1, wherein said concealed stepless telescopic adjustment device comprises a drive plug and an outer tube expansion plug, wherein said drive plug is disposed at said telescopic end, wherein said outer tube expands a plug is disposed on the telescopic passage and is configured to have a suitable interaction force between the inner rod and the outer tube in a direction relative to the outer tube to restrict the outer tube expansion Relative rotation between the plug and the outer tube, thereby being adapted to drive relative movement between the drive plug and the outer tube expansion plug by relative rotation between the inner rod and the outer tube, thereby adjusting The friction between the outer tube expansion plug and the outer tube controls the switching between the telescopic adjustment state and the telescopic restriction state.
The telescopic pile according to claim 2, wherein said outer tube expansion plug comprises a groove wall and has an expansion groove, wherein said expansion groove is provided to be surrounded by said groove wall to be adapted to pass through said inner portion A relative rotation between the rod and the outer tube drives a relative movement between the drive plug and the outer tube expansion plug to adjust a pressing force of the drive plug to the groove wall of the expansion groove, Thereby adjusting the friction between the groove wall of the outer tube expansion plug and the outer tube.
A telescopic pile according to claim 3, wherein said drive plug has a reclining surface such that said drive plug forms a narrow end adjacent one end of said outer tube expansion plug, wherein said narrow end corresponds to The expansion groove of the outer tube expansion plug adjusts the pressing force of the oblique push surface facing the groove wall to adjust a distance between the drive plug and the outer tube expansion plug.
A telescopic pile according to claim 4, wherein said outer tube expansion plug further has a plurality of side grooves, wherein said side grooves are adapted to separate said groove walls into a corresponding number of groove wall lobes for The pressing force between the inclined surface and the groove wall is reduced when the friction between the groove wall flap and the outer tube is adjusted.
The telescopic pile according to claim 5, wherein the outer tube is further provided with at least one guide rail, wherein the guide rail is disposed such that the telescopic direction of the telescopic pile is disposed outside the telescopic passage a tube adapted to the side groove to limit the relative relationship between the outer tube expansion plug and the outer tube by interaction of the guide rail between the side groove and the outer tube expansion plug Rotating to thereby facilitate relative movement between the drive plug and the outer tube expansion plug by relative rotation between the inner rod and the outer tube.
The telescopic pile according to claim 1, wherein said telescopic pile further comprises a sleeve, wherein said sleeve is disposed between said inner rod and said outer tube to avoid said inner rod and said Direct contact between the outer tubes.
A telescopic pile according to any one of claims 4 to 7, wherein said concealed stepless telescopic adjustment device further comprises an adjustment bolt, wherein said adjustment bolt is disposed in linkage with said inner rod, wherein said The outer tube expansion plug is further provided with an adjustment screw hole adapted to the adjustment bolt to be adapted to drive the adjustment bolt and the outer tube expansion plug by relative rotation between the inner rod and the outer tube A relative rotation therebetween to thereby control the drive plug and the outer tube expansion plug to adjust the distance between the drive plug and the outer tube expansion plug toward or away from each other.
The telescopic pile according to claim 8, wherein the driving plug is fixedly coupled to the telescopic end of the inner rod to be coupled with the inner rod, wherein the adjusting bolt is fixedly coupled to the driving plug In conjunction with the inner rod.
The telescopic pile of claim 9 wherein said adjustment bolt is embedded in said drive plug in an interference fit to form a fixed connection of said adjustment bolt to said drive plug.
The telescopic pile of claim 8 wherein said drive plug is integrally formed with said inner rod as a unitary body.
The telescopic pile according to claim 8, wherein said adjusting bolt is integrally formed integrally with said inner rod.
The telescopic pile according to claim 8, wherein the concealed stepless telescopic adjustment device further comprises a limit support member, wherein the limit support member is disposed at a tail end of the adjustment bolt to pass through When the relative rotation between the inner rod and the outer tube controls the driving plug and the outer tube expansion plug to be away from each other, the distance between the driving plug and the outer tube expansion plug is restricted, thereby avoiding The outer tube expansion plug is disengaged from the adjustment bolt.
The telescopic pile according to claim 13, wherein the limiting support member is provided as a screw, wherein the adjusting bolt is further provided at its tail end with a screw hole adapted to the screw to The screw is screwed into the screw hole to form a fixing of the limiting support to the adjusting bolt.
The telescopic pile according to claim 13, wherein said concealed stepless telescopic adjustment device further comprises an elastic member, wherein said elastic member is disposed between said limit support member and said outer tube expansion plug, The force of the outer tube expansion plug and the adjusting bolt in the telescopic direction of the telescopic pile is enhanced to maintain the stability of the distance between the outer tube expansion plug and the driving plug.
A telescopic pile according to claim 15, wherein said elastic member is provided as a spring, and said spring is disposed between said limit support member and said outer tube expansion plug by said screw. And being arranged to be compressed in the telescopic adjustment state of the telescopic pile to reduce a force required to drive the outer tube expansion plug and the drive plug to be close to each other.
The telescopic pile according to claim 16, wherein the concealed stepless telescopic adjustment device further comprises an isolation buffer sheet, wherein the isolation buffer sheet is disposed between the spring and the limit support member, Friction is avoided in direct contact between the spring and the limit support.
The telescopic pile according to claim 13, wherein said concealed stepless telescopic adjustment device further comprises an elastic member, wherein said elastic member is disposed to be stretched to be stretched in said telescopic adjustment state of said telescopic pile And disposed between the outer tube expansion plug and the driving plug to reduce a force required to drive the outer tube expansion plug and the driving plug to be close to each other.
A telescopic pile according to any one of claims 4 to 7, wherein said concealed stepless telescopic adjustment device further comprises an adjustment bolt, wherein said adjustment bolt is arranged to be associated with said outer tube expansion plug, wherein The drive plug is further provided with an adjustment screw hole adapted to the adjustment bolt to be adapted to drive between the adjustment bolt and the drive plug by relative rotation between the inner rod and the outer tube The relative rotation of the drive plug and the outer tube expansion plug adjusts the distance between the drive plug and the outer tube expansion plug.
The telescopic pile according to claim 19, wherein said drive plug is fixedly coupled to said telescopic end of said inner rod for interlocking with said inner rod.
A telescopic pile according to claim 20, wherein said adjusting bolt is embedded in said outer tube expansion plug in an interference fit to form a fixed connection of said adjusting bolt to said outer tube expansion plug and The outer tube expansion plug is linked.
The telescopic pile according to claim 19, wherein said concealed stepless telescopic adjustment device further comprises a limit support member, wherein said limit support member is disposed at a tail end of said adjustment bolt to pass through When the relative rotation between the inner rod and the outer tube controls the driving plug and the outer tube expansion plug to be away from each other, the distance between the driving plug and the outer tube expansion plug is restricted, thereby avoiding The drive plug is disengaged from the adjustment bolt.
The telescopic pile according to claim 22, wherein said limit support member is provided as a screw, and wherein said adjustment bolt is further provided at its tail end with a screw hole adapted to said screw to The screw is screwed into the screw hole to form a fixing of the limiting support to the adjusting bolt.
The telescopic pile according to claim 22, wherein said concealed stepless telescopic adjustment device further comprises an elastic member, wherein said elastic member is disposed between said limit support member and said drive plug to enhance The driving plug and the adjusting bolt are stressed in a telescopic direction of the telescopic pile, thereby maintaining stability of a distance between the outer tube expansion plug and the driving plug.
A telescopic pile according to claim 24, wherein said elastic member is provided as a spring, wherein said spring is disposed between said limit support member and said drive plug by said screw and is The telescopic adjustment state set to the telescopic pile is compressed to reduce a force required to drive the outer tube expansion plug and the drive plug to be close to each other.
The telescopic pile according to claim 25, wherein said concealed stepless telescopic adjustment device further comprises an isolation buffer sheet, wherein said isolation buffer sheet is disposed between said spring and said limit support member, Friction is avoided in direct contact between the spring and the limit support.
The telescopic pile according to claim 22, wherein said concealed stepless telescopic adjustment device further comprises an elastic member, wherein said elastic member is disposed to be stretched to be stretched in said telescopic adjustment state of said telescopic pile And disposed between the outer tube expansion plug and the driving plug to reduce a force required to drive the outer tube expansion plug and the driving plug to be close to each other.
A concealed stepless telescopic adjustment device, characterized in that the concealed stepless telescopic adjustment device is adapted to be disposed on a telescopic end of an inner rod, and the inner rod is from the telescopic end to an outer tube a telescopic channel is nested behind the outer tube and adapted to adjust friction between the hidden stepless telescopic adjustment device and the outer tube by relative rotation between the inner rod and the outer tube The force, wherein the hidden stepless telescopic adjustment device comprises:

a drive plug, wherein the drive plug is configured to be adapted to be disposed at the telescoping end; and

An outer tube expansion plug, wherein the outer tube expansion plug is configured to be disposed on the telescopic passage and adapted to be between a direction in which the inner rod and the outer tube are relatively rotated and the outer tube Having a suitable interaction force to limit relative rotation between the outer tube expansion plug and the outer tube, thereby being adapted to drive the drive plug by relative rotation between the inner rod and the outer tube The outer tube expands relative movement between the plugs, thereby adjusting the friction between the outer tube expansion plug and the outer tube.
The concealed stepless telescopic adjustment device according to claim 28, wherein said outer tube expansion plug comprises a groove wall and has an expansion groove, wherein said expansion groove is provided to be surrounded by said groove wall to be adapted Adjusting the driving movement to the expansion groove to the groove wall by relative movement between the inner rod and the outer tube, driving relative movement between the driving plug and the outer tube expansion plug a pressing force to thereby adjust the friction between the groove wall of the outer tube expansion plug and the outer tube.
The concealed stepless telescopic adjustment device according to claim 29, wherein said drive plug has a reclining surface such that said drive plug forms a narrow end near an end of said outer tube expansion plug, wherein said a narrow end corresponding to the expansion groove of the outer tube expansion plug, adapted to adjust a distance between the drive plug and the outer tube expansion plug to adjust the inclination of the oblique push surface facing the groove wall force.
The concealed stepless telescopic adjustment device according to claim 30, wherein said outer tube expansion plug further has a plurality of side grooves, wherein said side grooves are configured to be adapted to divide said groove walls into a corresponding number of grooves a wall flap to reduce a pressing force between the inclined surface and the groove wall when adjusting a frictional force between the groove wall flap and the outer tube.
The concealed stepless telescopic adjustment device according to claim 30 or 31, wherein said concealed stepless telescopic adjustment device further comprises an adjustment bolt, wherein said adjustment bolt is arranged to be interlocked with said drive plug, wherein The outer tube expansion plug is further provided with an adjustment screw hole adapted to the adjustment bolt to be adapted to drive the adjustment bolt and the outer tube by relative rotation between the inner rod and the outer tube The relative rotation between the expansion plugs is controlled to control the distance between the drive plug and the outer tube expansion plug by controlling the drive plug and the outer tube expansion plug to be close to or away from each other.
The concealed stepless telescopic adjustment device according to claim 32, wherein said drive plug is further configured to be fixedly coupled to said telescopic end of said inner rod to be adapted to be coupled to said inner rod, Wherein the adjusting bolt is fixedly coupled to the driving plug to be adapted to be coupled with the inner rod.
A concealed stepless telescopic adjustment device according to claim 33, wherein said adjustment bolt is embedded in said drive plug in an interference fit to form a fixed connection of said adjustment bolt to said drive plug.
The concealed stepless telescopic adjustment device according to claim 32, wherein said concealed stepless telescopic adjustment device further comprises a limit support member, wherein said limit support member is disposed at a rear end of said adjustment bolt Restricting between the drive plug and the outer tube expansion plug when the drive plug and the outer tube expansion plug are controlled to be remote from each other by relative rotation between the inner rod and the outer tube The distance away from each other, thereby preventing the outer tube expansion plug from coming off the adjustment bolt.
The concealed stepless telescopic adjustment device according to claim 35, wherein said limit support member is provided as a screw, wherein said adjustment bolt is further provided at its tail end with a screw adapted to said screw And a hole for screwing the screw into the screw hole to form the fixing support to the adjusting bolt.
The concealed stepless telescopic adjustment device according to claim 35, wherein said concealed stepless telescopic adjustment device further comprises an elastic member, wherein said elastic member is disposed on said limit support member and said outer tube Between the expansion plugs, to enhance the force between the outer tube expansion plug and the adjustment bolt to maintain the stability of the distance between the outer tube expansion plug and the drive plug.
The concealed stepless telescopic adjustment device according to claim 37, wherein said elastic member is provided as a spring, wherein said spring is compressively disposed on said limit support member and said outer tube expansion plug In order to reduce the force required to drive the outer tube expansion plug and the drive plug to be close to each other.
The hidden stepless telescopic adjustment device according to claim 38, wherein said concealed stepless telescopic adjustment device further comprises an isolation buffer sheet, wherein said isolation buffer sheet is disposed on said spring and said limit support Between the pieces to avoid friction between the spring and the limit support in direct contact.
The concealed stepless telescopic adjustment device according to claim 35, wherein said concealed stepless telescopic adjustment device further comprises an elastic member, wherein said elastic member is disposed to be stretchably disposed to said outer tube Between the expansion plug and the drive plug to reduce the force required to drive the outer tube expansion plug and the drive plug into proximity.
The concealed stepless telescopic adjustment device according to claim 30 or 31, wherein said concealed stepless telescopic adjustment device further comprises an adjustment bolt, wherein said adjustment bolt is arranged to be linked with said outer tube expansion plug The drive plug is further provided with an adjustment screw hole adapted to the adjustment bolt to be adapted to drive the adjustment bolt and the drive plug by relative rotation between the inner rod and the outer tube A relative rotation therebetween to thereby control the drive plug and the outer tube expansion plug to adjust the distance between the drive plug and the outer tube expansion plug toward or away from each other.
The concealed stepless telescopic adjustment device according to claim 41, wherein said drive plug is further configured to be fixedly coupled to said telescopic end of said inner rod for interlocking with said inner rod.
The concealed stepless telescopic adjustment device according to claim 42, wherein said adjusting bolt is embedded in said outer tube expansion plug in an interference fit to form said adjusting bolt on said outer tube expansion plug The connection is fixed and linked to the outer tube expansion plug.
The concealed stepless telescopic adjustment device according to claim 41, wherein said concealed stepless telescopic adjustment device further comprises a limit support member, wherein said limit support member is disposed at a rear end of said adjustment bolt Restricting the drive plug from the outer tube expansion plug away from each other when the drive plug and the outer tube expansion plug are controlled away from each other by relative rotation between the inner rod and the outer tube The distance, in turn, prevents the drive plug from coming off the adjustment bolt.
The concealed stepless telescopic adjustment device according to claim 44, wherein said limit support member is provided as a screw, and wherein said adjustment bolt is further provided at its tail end with a screw adapted to said screw And a hole for screwing the screw into the screw hole to form the fixing support to the adjusting bolt.
The hidden stepless telescopic adjustment device according to claim 45, wherein said concealed stepless telescopic adjustment device further comprises an elastic member, wherein said elastic member is disposed on said limit support member and said drive plug The stability between the outer tube expansion plug and the drive plug is maintained between the drive plug and the adjustment bolt to enhance the force between the drive plug and the adjustment bolt.
The concealed stepless telescopic adjustment device according to claim 46, wherein said elastic member is provided as a spring, wherein said spring is compressively disposed between said limit support member and said drive plug, The force required to drive the outer tube expansion plug and the drive plug to each other is reduced.
The hidden stepless telescopic adjustment device according to claim 47, wherein said concealed stepless telescopic adjustment device further comprises an isolation buffer sheet, wherein said isolation buffer sheet is disposed on said spring and said limit support Between the pieces to avoid friction between the spring and the limit support in direct contact.
The concealed stepless telescopic adjustment device according to claim 45, wherein said concealed stepless telescopic adjustment device further comprises an elastic member, wherein said elastic member is disposed to be stretchably disposed to said outer tube Between the expansion plug and the drive plug to reduce the force required to drive the outer tube expansion plug and the drive plug into proximity.
A method for adjusting a telescopic pile, characterized in that the adjustment method comprises the following steps:

(a) reducing the friction between an outer tube expansion plug disposed on the telescopic passage of an outer tube and the outer tube;

(b) adjusting the relative position of an inner tube nested inside the outer tube and the outer tube along the length of the outer tube;

(c) squeezing the outer tube expansion plug in a circumferential direction of the outer tube such that the outer tube expansion plug expands within the telescopic passage of the outer tube such that the telescopic pile is retained A telescopic limit state.
The adjusting method according to claim 50, wherein in said step (c), a driving plug provided to the telescopic end of said inner tube is driven to move toward said outer tube expansion plug to A drive plug presses the outer tube expansion plug outwardly on an inner side of the outer tube expansion plug to expand the outer tube expansion plug within the telescoping channel of the outer tube.
The adjustment method according to claim 51, wherein in said method, said drive plug is rotated to drive said drive plug to move toward said outer tube expansion plug.
The adjustment method according to claim 52, wherein in said method, said inner tube is rotated to drive said drive plug to rotate, thereby driving said drive plug to move toward said outer tube expansion plug.
A manufacturing method of a telescopic pile, characterized in that the manufacturing method comprises the following steps:

(A) installing an outer tube to expand the telescopic passage of the outer tube;

(B) providing a telescopic end that is driven to engage an inner tube;

(C) rotatably mounting the telescopic end of the inner tube to the telescopic passage of the outer tube, wherein the drive plug is capable of expanding the plug toward the outer tube when the inner tube is rotated Moving to expand the outer tube expansion plug in the telescoping channel of the outer tube by squeezing the outer tube expansion plug outwardly by the drive plug.