CN216519040U - Twist lock telescopic rod - Google Patents

Abstract

The application discloses a twist lock telescopic rod which comprises an outer tube, an inner tube and an inner plug structure; the inner plug structure comprises a plug, an upper plug sheet, a clamping column, a stop block and a lower plug sheet, wherein the plug is fixedly connected to the upper surface of the upper plug sheet, the clamping column is fixedly connected between the upper plug sheet and the lower plug sheet, and the stop block is fixedly connected to one side of the clamping column; the plug is clamped in the bottom end of the inner pipe, a clamping ring is arranged on the outer side of the clamping column, an eccentric hole is formed in the clamping ring, the clamping column penetrates through the clamping ring, a limiting groove is formed in the top end of the clamping ring, and the stop block is clamped in the limiting groove; and one end of the outer pipe is sleeved with an outer sleeve, and the top end of the outer sleeve is sleeved on the surface of the inner pipe. This application has adopted the integrated configuration of outer tube, inner tube, interior stopper structure, snap ring and overcoat, can be connected outer tube and inner tube through interior stopper structure, snap ring and overcoat, and the dismouting is comparatively simple, is convenient for adjust the relative length between outer tube and the inner tube simultaneously.

Description

Twist lock telescopic rod

Technical Field

The application relates to the technical field of telescopic links, in particular to a twist lock telescopic link.

Background

The novel telescopic rod is a telescopic hollow cylindrical rod which is formed by rolling a metal strip or a plastic sheet, and is characterized in that the metal strip or the plastic sheet is pre-shaped into an elastic curling layer with a memory function and smaller than the outer diameter of a rod body, so that the novel telescopic rod has a self-tightening function, and the curling layer always has elastic potential energy for applying pressure to the telescopic rod.

Traditional telescopic link connection structure is generally comparatively complicated, is not convenient for carry out the rotation to outer tube and inner tube when using and fixes, and present telescopic link junction stability is not enough simultaneously, and the dismouting is comparatively troublesome. Therefore, a twist-lock telescopic rod is provided to solve the above problems.

Disclosure of Invention

A twist lock telescopic rod comprises an outer tube, an inner tube and an inner plug structure;

the inner plug structure comprises a plug, an upper plug piece, a clamping column, a stop block and a lower plug piece, wherein the plug is fixedly connected to the upper surface of the upper plug piece, the clamping column is fixedly connected between the upper plug piece and the lower plug piece, and the stop block is fixedly connected to one side of the clamping column;

the plug is clamped in the bottom end of the inner pipe, a clamping ring is arranged on the outer side of the clamping column, an eccentric hole is formed in the clamping ring, the clamping column penetrates through the clamping ring, a limiting groove is formed in the top end of the clamping ring, and the stop block is clamped in the limiting groove; and one end of the outer pipe is sleeved with an outer sleeve, and the top end of the outer sleeve is sleeved on the surface of the inner pipe.

Further, the inner diameter of the outer pipe is larger than the outer diameter of the inner pipe, and the outer pipe and the inner pipe are both of hollow structures.

Furthermore, the inner plug structure is formed by integrally molding the plug, the upper plug piece, the clamping column, the stop block and the lower plug piece into a round structure in a shape like a Chinese character 'shi'.

Furthermore, the same side edge of the upper plug piece and the lower plug piece is provided with a groove.

Further, the snap ring is of a circular ring-shaped structure, and the outer side face of the snap ring is attached to the inner side wall of the outer tube.

Further, the outer wall of the outer sleeve is provided with grooves, and the inner pipe is positioned at the central point of the inner diameter of the outer pipe.

Through the above-mentioned embodiment of this application, through clockwise rotation, the dog is followed the spacing groove cisoid and is pulled the snap ring, makes the snap ring rotate to thick place from the thinner place of eccentric circle, and the gap between card outer tube inner wall and the card post is gone into to the card, because the non-central point of card post, this moment, the gap between card post and the outer tube inner wall also is in minimum state, along with rotating the inner tube, card post and outer tube inner wall gap diminish gradually, the snap ring bodiness gradually to the jam is tight, realizes locking inner tube, the fixed length.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise:

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present application;

FIG. 3 is a schematic illustration of an exemplary embodiment of an internal plug structure of the present application;

fig. 4 is a schematic diagram of a snap ring structure according to an embodiment of the present application.

In the figure: 1. an outer tube; 2. an inner tube; 3. a jacket; 4. a plug; 5. an upper plug sheet; 6. clamping the column; 7. a stopper; 8. a lower plug sheet; 9. a snap ring; 10. an eccentric hole; 11. a limiting groove.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-4, a twist-lock telescopic rod includes an outer tube 1, an inner tube 2 and an inner plug structure;

the inner plug structure comprises a plug 4, an upper plug piece 5, a clamping column 6, a stop block 7 and a lower plug piece 8, wherein the plug 4 is fixedly connected to the upper surface of the upper plug piece 5, the clamping column 6 is fixedly connected between the upper plug piece 5 and the lower plug piece 8, and the stop block 7 is fixedly connected to one side of the clamping column 6;

the plug 4 is clamped inside the bottom end of the inner tube 2, a clamping ring 9 is arranged on the outer side of the clamping column 6, an eccentric hole 10 is formed inside the clamping ring 9, the clamping column 6 penetrates through the clamping ring 9, a limiting groove 11 is formed in the top end of the clamping ring 9, and the stop block 7 is clamped inside the limiting groove 11; and one end of the outer pipe 1 is sleeved with an outer sleeve 3, and the top end of the outer sleeve 3 is sleeved on the surface of the inner pipe 2.

The inner diameter of the outer pipe 1 is larger than the outer diameter of the inner pipe 2, and the outer pipe 1 and the inner pipe 2 are both of hollow structures, so that the outer pipe 1 and the inner pipe 2 can be conveniently matched for use; the inner plug structure is integrally formed by the plug 4, the upper plug piece 5, the clamping column 6, the stop block 7 and the lower plug piece 8 into a round structure in a shape like the Chinese character 'shi'; grooves are formed in the same side edge of the upper plug piece 5 and the lower plug piece 8, and the grooves are used for exhausting air to avoid the influence of air pressure on the screwing effect; the snap ring 9 is of an annular structure, the outer side surface of the snap ring 9 is attached to the inner side wall of the outer tube 1, the snap ring 9 is matched with the snap column 6, and when the snap ring 9 rotates for a certain angle, the snap ring 9 is enabled to be propped against the inner wall of the outer tube 1, so that the function of clamping the inner tube 2 and the outer tube 1 is realized; the outer wall of the outer sleeve 3 is provided with groove grains, the inner pipe 2 is positioned at the central point of the inner diameter of the outer pipe 1, and the groove grains play a role in skid resistance.

When the locking device is used, firstly, the locking device rotates clockwise, the stop block 7 pulls the clamping ring 9 from the limiting groove 11 in the forward direction, the clamping ring 9 rotates from a thinner position of an eccentric circle to a thicker position and is clamped into a gap between the inner wall of the outer tube 1 and the clamping column 6, the clamping column 6 is not at a central point, at the moment, the gap between the clamping column 6 and the inner wall of the outer tube 1 is also in a minimum state, the gap between the clamping column 6 and the inner wall of the outer tube 1 gradually becomes smaller and the clamping ring 9 gradually becomes thicker along with the rotation of the inner tube 2, so that the inner tube 2 and the fixed length are locked tightly;

anticlockwise rotation, dog 7 is from 11 reverse promotion snap rings 9 of spacing groove, makes snap ring 9 rotate from the thick ground direction thin place of eccentric circle, and card post 6 and 1 inner wall gap of outer tube grow gradually, snap ring 9 gradually to thin rotation, and snap ring 9 deviates from the gap of card post 6 and 1 inner wall of outer tube, gets back to central point and puts, loosens 1 inner wall of outer tube promptly to make inner tube 2 not hard up, can freely stretch.

The application has the advantages that:

1. the combined structure of the outer pipe, the inner plug structure, the clamping ring and the outer sleeve is adopted, the outer pipe and the inner pipe can be connected through the inner plug structure, the clamping ring and the outer sleeve, the assembly and disassembly are simple, and meanwhile, the relative length between the outer pipe and the inner pipe can be conveniently adjusted;

2. this application is through clockwise rotation, and the dog is followed the spacing groove cisoid and is stimulateeed the snap ring, makes the snap ring rotate to thick place from the thinner place of eccentric circle, and the gap between outer tube inner wall and the card post is gone into to the card, because card post non-central point, at this moment, the gap between card post and the outer tube inner wall also is in the minimum state, along with rotating the inner tube, card post and outer tube inner wall gap diminish gradually, the snap ring bodiness gradually to the jam is tight, realizes locking inner tube, regular length.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (6)

1. The utility model provides a twist lock telescopic link which characterized in that: comprises an outer tube (1), an inner tube (2) and an inner plug structure;

the inner plug structure comprises a plug (4), an upper plug piece (5), a clamping column (6), a stop block (7) and a lower plug piece (8), the plug (4) is fixedly connected to the upper surface of the upper plug piece (5), the clamping column (6) is fixedly connected between the upper plug piece (5) and the lower plug piece (8), and the stop block (7) is fixedly connected to one side of the clamping column (6);

the plug (4) is clamped inside the bottom end of the inner pipe (2), a clamping ring (9) is arranged on the outer side of the clamping column (6), an eccentric hole (10) is formed in the clamping ring (9), the clamping column (6) penetrates through the clamping ring (9), a limiting groove (11) is formed in the top end of the clamping ring (9), and the stop block (7) is clamped inside the limiting groove (11); an outer sleeve (3) is sleeved at one end of the outer pipe (1), and the top end of the outer sleeve (3) is sleeved on the surface of the inner pipe (2).

2. A twist-lock extension pole according to claim 1, wherein:

the inner diameter of the outer pipe (1) is larger than the outer diameter of the inner pipe (2), and the outer pipe (1) and the inner pipe (2) are both of hollow structures.

3. A twist-lock extension pole according to claim 1, wherein:

the inner plug structure is formed by integrally molding the plug (4), the upper plug piece (5), the clamping column (6), the stop block (7) and the lower plug piece (8) into a round structure in a shape like a Chinese character 'shi'.

4. A twist-lock extension pole according to claim 1, wherein:

the same side edge of the upper plug sheet (5) and the lower plug sheet (8) is provided with grooves.

5. A twist-lock extension pole according to claim 1, wherein:

the snap ring (9) is of a circular ring structure, and the outer side face of the snap ring (9) is attached to the inner side wall of the outer tube (1).

6. A twist-lock extension pole according to claim 1, wherein:

the outer wall of the outer sleeve (3) is provided with grooves, and the inner pipe (2) is located at the central point of the inner diameter of the outer pipe (1).

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