TWM622102U - Telescopic pole structure of scaffolding - Google Patents

Abstract

A telescopic rod structure of a scaffold, the two axial ends of the telescopic rod can be connected to the scaffold connection plates of two adjacent scaffold columns; tube, and a connector respectively arranged at the axial ends of the telescopic rod; the outer tube and the inner tube are made of extruded aluminum tubes, and the cross-sectional shape of the outer tube and the inner tube includes an upper arch part and a lower reinforcement part , the outer side of the end of the outer tube is equipped with a clamp to force the end of the outer tube to tighten or loosen the inner tube, which can easily move the inner tube to adjust the length of the telescopic rod; the cross-sectional shape can improve the compressive load of the telescopic rod. capacity and structural strength, and avoid the relative rotation of the outer tube and the inner tube during the elongation or shortening operation, which facilitates the operation and construction of the connector and the scaffold connection plate when docking.

Description

Telescopic pole structure of scaffolding

The new model relates to a construction frame of a building, in particular to a telescopic rod structure of a scaffold. The two axial ends of the telescopic rod can be connected to the scaffold connection plates of two adjacent scaffold columns.

It is known that scaffolding is composed of a variety of different components. Common basic components include: scaffolding uprights, pedals (including fixed pedals and movable pedals), skirting boards, guardrails, inclined ladders, cross bars and inclined bars and so on. It is known that the components of the scaffolding are basically detachable designs. Before construction, all components are assembled and erected on the outside or inside of the building to carry construction personnel or related construction equipment; the scaffolding components in the industry all have Uniform sizes and dimensions, such as scaffolding uprights, crossbars, treads and skirting boards have prescribed lengths. In practical applications, due to the different shapes, sizes and scales of buildings, many scaffolding components are usually required to be used together, and there is often a problem that the length of the components exceeds the building near the edge of the scaffolding; another common The situation is that some buildings with special shapes make it difficult for the assembled scaffolding to be close to the building (that is, the scaffolding may be far away from the outer wall of the building), so that the construction workers cannot be at a safe distance or safe. Construction and operations are carried out within the scope of the construction, for example: the curvature (radian) of the inner and outer side walls of the circular arc wall of a large cylindrical building (such as a natural gas storage tank) is different. When the scaffold is erected, the distances between the scaffolds erected on the inner side and the outer side of the arc-shaped wall from the inner side wall surface and the outer side wall surface are different.

In order to solve these problems, some eagle frame members are known to be telescopic or adjustable in size (eg, length). In the approved Republic of China new type patent (certificate number M246391), a "scaffold adjustment type extension structure" is proposed, which includes: a horizontal frame rod, one end of which is provided with a connecting piece, and the connecting piece is further A first U-shaped buckle is provided; a vertical frame rod is vertically arranged at an appropriate position of the horizontal frame rod, and a clip group is arranged at one end of the vertical frame rod relative to the connecting horizontal frame rod; an auxiliary A rod, which is placed obliquely between the vertical frame rod and the horizontal frame rod to strengthen the strength of the two; a telescopic rod, the outer diameter of the telescopic rod can be accommodated in the inner diameter of the horizontal frame rod, and can be used by The telescopic rod is fixed to the appropriate position of the horizontal frame rod by a suitable fixing structure, the fixing structure is to design a plurality of perforations at the rod body of the horizontal frame rod, and set a plurality of positioning holes at the appropriate position of the telescopic rod, The extension part of the second U-shaped buckle is used to pass through a positioning hole and a through hole at the same time, and the hook part of the second U-shaped buckle is fastened to the outside of the horizontal frame rod to form the fixing structure.

In addition, in the approved Republic of China new type patent (certificate number M322973), a "foldable bracket structure for scaffolding" is proposed. The bracket mainly includes a vertical frame part, a horizontal frame part and a movable diagonal support frame It is composed of the telescopic frame part set on the horizontal frame part, the user can adjust the use width of the protective net or scaffolding pedal to be installed by himself.

In addition, in the approved ROC new type patent (certificate number M321446), an "improvement of the structure of the outer hanging bracket of the scaffold" is proposed, which includes a vertical hanging frame with a buckle on the back side combined with a base on the other side, There is a long pivot hole on the upper side of the two side walls of the base body against the corner of the hanging frame, which provides a pivot joint at one end of the movable support rod, and an arc-shaped guide groove is set opposite the outer side of the side wall of the pivot seat; so that the movable support rod passes through a supporting shaft When the set of arc-shaped guide grooves can guide the upper swing to be horizontally unfolded, insert the support shaft into the positioning groove at the upper end of the arc-shaped guide groove to make it firm and stable, and push the support shaft out of the positioning groove to be combined with the hanging frame. closed structure.

The technical problem to be solved by the telescopic rod structure of the new scaffold is to provide a telescopic rod structure of the scaffold, which can improve the compressive load resistance and structural strength of the telescopic rod, and is convenient for operation and construction.

In order to solve the above-mentioned technical problems, the present invention proposes a telescopic rod structure of a scaffold, and the two axial ends of the telescopic rod can be connected to the scaffold connection plates of two adjacent scaffold columns; An embodiment of the rod structure includes: an outer tube and an inner tube that are sleeved together in a coaxial relationship to form the telescopic rod, and a connector respectively disposed at both axial ends of the telescopic rod.

The head ends of the outer tube and the inner tube are respectively equipped with the connector, the tail end of the inner tube is inserted into the outer tube from the tail end of the outer tube, and the inner tube and the outer tube are in a loose fit connection relationship, and the inner tube and the outer tube are in a loose fit connection relationship. The tube can move freely along the axial direction of the outer tube. The cross-sectional shapes of the outer tube and the inner tube include an upper arched portion and a lower reinforcing portion. A tightening portion and a tightening element surround the rear end of the outer tube.

The cross-sectional shape of the tightening part is a non-closed ring shape, the non-closed ring shape has an opening, and the tail end of the outer tube has a shrinkage seam extending toward the head end direction of the outer tube. The seam starts from the tail end of the outer tube and extends in the direction parallel to the axial direction of the outer tube towards the head end of the outer tube. The two sides respectively have a left extension wing and a right extension wing, both of the left extension wing and the right extension wing extend toward the direction away from the axis of the outer tube, and the pressing element is arranged on the left extension wing and the right extension wing for connecting the left extension wing and the right extension wing. The extension wing and the right extension wing are in close proximity to each other.

The connector includes: a collet and a movable latch, the collet is fixed at one end of the axial direction of the telescopic rod, the collet head is provided with a notch and a through hole, the notch is used to clamp the scaffold connection plate, and the movable latch can It is freely movable through said perforations and then inserted into the sockets of the scaffolding connection plate and withdrawn from the sockets of the scaffolding connection plate.

As a preferred embodiment of the present invention, the lateral width of the lower reinforcing part is slightly smaller than the lateral width of the upper arched part, and the shape of the lower reinforcing part includes a left vertical wall and a right vertical wall symmetrical to both sides of the axis. The vertical wall and the right vertical wall extend along the radial direction of the telescopic rod, the upper ends of the left vertical wall and the right vertical wall are respectively connected on both sides of the upper arched portion, and the bottom ends of the left vertical wall and the right vertical wall are connected to each other as one.

As a preferred embodiment of the present invention, the outer tube and the inner tube are made of extruded aluminum tubes.

As a preferred embodiment of the present invention, the pressing element comprises a bolt and a nut, and the bolt passes through the left extension wing and the right extension wing and then is screwed with the nut.

As a preferred embodiment of the present invention, the force-applying end of the bolt is provided with a butterfly wing, and the bolt is sleeved with an anti-loosening washer.

As a preferred embodiment of the present invention, the connector is welded and fixed to the head ends of the outer tube and the inner tube.

As a preferred embodiment of the present invention, the connection between the collet of the connector and the telescopic rod has two connecting wings spaced apart from each other and a pivot shaft passing through the connecting wings. The shaft of the telescopic rod The axial end is placed between the two connecting wings, and the pivot shaft rotatably passes through the axial end of the telescopic rod.

The advantages and effects of the telescopic rod structure of the new scaffolding are that the scaffolding constitutes the scaffolding. The upper arched part and the lower reinforcing part of the outer tube and inner tube of the telescopic rod can improve the compressive load resistance and structural strength of the telescopic rod, and avoid the relative rotation of the outer tube and the inner tube during the extension or shortening operation, ensuring that The outer tube and the inner tube can only move relative to each other along the axial direction, which is convenient for the operation and construction when the connector and the scaffolding connection plate are butted; on the other hand, the outer tube and the inner tube are made of extruded aluminum tubes. It has the advantages of structural strengthening and light weight.

The specific embodiments of the present invention and other advantages and effects will be described below with reference to the drawings.

10: Outer tube

11: shrink seam

12: Cut the groove

20: Inner tube

30, 30A: connector

31: Chuck

32: Active latch

321: blocking tip

33: Notch

34: Perforation

35: Connecting Wings

36: Pivot shaft

40: Lower Reinforcement Department

41: Left wall

42: Right wall

50: Tightener

51: Tightening part

52: Opening

53: Left Extension Wing

54: Right Extension Wing

55: Pressing components

551: Bolt

552: Nut

553: Butterfly Wing

554: Lock washer

60: Scaffolding connection plate

61: Perforation

62: jack

B: Scaffolding column

C: Upper arch

R: telescopic rod

θ1: included angle

Fig. 1 is a structural diagram of an embodiment of the telescopic rod structure of the scaffold of the present invention.

FIG. 2 is an exploded view of the structure of the embodiment of FIG. 1 .

Fig. 3 is a cross-sectional structural view of Fig. 1 at the position A-A.

Fig. 4 is a plan view of another embodiment of the connector. (top view)

Fig. 5 is a front view of the structure of the embodiment of Fig. 4 . (Insert and withdraw movable latch)

Fig. 6 is a schematic diagram of an example of use of the telescopic rod structure of the new scaffold.

Fig. 7 is a front view of the structure of the embodiment of Fig. 6;

The positional relationships described in the following embodiments, including: up, down, left and right, are based on the directions shown by the components in the drawings unless otherwise specified. The directions mentioned therein (for example, up, down, left, right, front, and back) are displayed according to the drawings, and are used to illustrate the relative relationship (for example, positional relationship, connection relationship and action relationship).

First, please refer to Figures 1 and 2, which are a practical example of the telescopic rod structure of the new scaffolding. The construction diagram of the embodiment and its construction exploded view. The two axial ends of the telescopic rod R can be connected to the scaffold connection plates 60 of two adjacent scaffold columns B (see Figures 6 and 7). The center of the scaffolding connection plate 60 has a through hole 61 for the scaffolding column B to pass through, and then the scaffolding connection plate 60 is arranged on the scaffolding column B. The shape of the scaffolding connection plate 60 is a circle, and the scaffolding connection plate 60 A plurality of sockets 62 are provided at the equally divided circumferential positions with the center of the circle as the center. Generally speaking, there are 8 sockets 62 in total.

The structure of the telescopic rod of the scaffold basically includes: an outer tube 10 and an inner tube 20 that are sleeved together in a coaxial relationship to form the telescopic rod R, connector 30.

The cross-sectional shape of the outer tube 10 and the inner tube 20 includes an upper arch portion C and a lower reinforcing portion 40 (see Figure 3, in which the cross-sectional shape of the outer tube 10 is used as a representative description and corresponding symbols are marked) , in terms of the shape of the cross section, it is similar to an inverted "convex" shape. Since the telescopic rod R is basically the main load-bearing element of the scaffold, it is divided into an upper arch in the vertical direction of the telescopic rod R. C and the lower reinforcement part 40, the lateral width of the lower reinforcement part 40 is slightly smaller than the lateral width of the upper arched part C, wherein the shape of the lower reinforcement part 40 includes a left vertical wall 41 and a right vertical wall 42 symmetrical on both sides of the axis, and the left vertical wall 41 and the right vertical wall 42 extend along the radial direction of the telescopic rod R, the upper ends of the left vertical wall 41 and the right vertical wall 42 are respectively connected to both sides of the upper arch portion C, and the bottom ends of the left vertical wall 41 and the right vertical wall 42 are connected to each other as a whole .

As a preferred embodiment of the outer tube 10 and the inner tube 20, the outer tube 10 and the inner tube 20 are made of extruded aluminum tubes. The reinforcing part 40, whereby the above-mentioned cross-sectional shape can improve the compressive load resistance and structural strength of the telescopic rod R, and avoid the relative rotation of the outer tube 10 and the inner tube 20 during the extension or shortening operation, so as to ensure that the outer tube 10 The inner tube 20 and the inner tube 20 can only move relative to each other along the axial direction, which facilitates the operation and construction when the connector 30 is connected to the scaffold connection plate 60 .

The head ends of the outer tube 10 and the inner tube 20 are respectively equipped with connectors 30. A preferred embodiment is to weld and fix the connectors 30 on the head ends of the outer tube 10 and the inner tube 20, and the tail of the inner tube 20 is welded. The end of the outer tube 10 is inserted into the outer tube 10 from the rear end of the outer tube 10. The inner tube 20 and the outer tube 10 are in a loose fitting connection, so the inner tube 20 can move freely along the axial direction of the outer tube 10. 10 and the inner tube 20 together form a telescopic rod R that can be telescopically changed in length.

The outer side of the rear end of the outer tube 10 is provided with a clamp 50, and the clamp 50 includes a clamping part 51 and a pressing element 55 (see Figure 3); the clamping part 51 surrounds the rear end of the outer pipe 10, Viewed from the cross-sectional direction of the tube 10, the cross-sectional shape of the clamping portion 51 is a non-closed annular shape with an opening 52, and the rear end of the outer tube 10 has a head facing the outer tube. A shrinkage seam 11 extending in the end direction, the shrinkage seam 11 starts from the tail end of the outer tube 10 and extends in a direction parallel to the axial direction of the outer tube 10 towards the head end of the outer tube 10, and the extension length of the shrinkage seam 11 is at least The axial length of the clamping portion 51 is the same (may be slightly larger), and at the end of the shrinkage seam 11 there is a groove 12 which cuts through the outer tube 10 in the transverse direction.

As a preferred embodiment of the present invention, the shape of the cross section of the clamping portion 51 is the same as the shape of the cross section of the outer tube 10 , and there are a left extension wing 53 and a right extension wing on both sides of the opening 52 respectively. 54, the left extension wing 53 and the right extension wing 54 both extend toward the direction away from the axis of the outer tube 10; the pressing element 55 is used to force the left extension wing 53 and the right extension wing 54 close to each other, so as to urge the right extension wing 54 shrinks and then clamps the tube wall at the end of the outer tube 10, so that the outer tube 10 clamps the inner tube 20 and the length of the telescopic rod R is fixed; on the contrary, releasing or loosening the pressing element 55 can make the outer tube 10 loose Open the tightening effect on the inner tube 20, and move the inner tube 20 again to change or adjust the length of the telescopic rod R Spend.

An embodiment of the pressing element 55 is a combination of a bolt 551 and a nut 552. After the bolt 551 penetrates the left extension wing 53 and the right extension wing 54, it is screwed with the nut 552. Preferably, a butterfly is provided at the force application end of the bolt 551. For the wings 553 , the bolts 551 can be rotated by hand without using tools (such as a sheet hand), which is convenient to operate; further, a locking washer 554 (wBsher) is also sleeved on the bolts 551 .

An embodiment of the connector 30 is shown in Figures 1 and 2. The connector 30 includes: a collet 31 and a movable plug 32. The collet 31 is fixed at one end of the axial direction of the telescopic rod R, such as As mentioned above, the head ends of the outer tube 10 and the inner tube 20 are respectively equipped with a collet 31 of the connector 30. An embodiment of the collet 31 and the movable plug 32 is made of aluminum alloy, and the collet 31 is provided with a notch 33 and a A through hole 34, the gap 33 is used to clamp the scaffold connection plate 60, the movable latch 32 can freely pass through the through hole 34 and then inserted into the socket 62 of the scaffold connection plate 60 to fix the chuck 31 on the scaffold The connecting plate 60 and the movable latch 32 can also be freely withdrawn from the socket 62 of the scaffolding connecting plate 60 through the through hole 34, so that the chuck 31 and the scaffolding connecting plate 60 can be separated. The front end of 32 is provided with a blocking pin 321. When assembling and manufacturing, the front end of the movable plug 32 is inserted into the through hole 34 of the collet 31, and then the blocking pin 321 is attached to the front end of the movable plug 32 by the side of the collet 31. After the socket 62 of the scaffold connection plate 60 is pulled out, the interference of the blocking pin 321 and the through hole 34 can prevent the movable pin 32 from being completely separated from the chuck 31, so that there is no need to search for the movable pin 32 in repeated use.

Please refer to Figures 4 and 5, which are schematic structural diagrams of another embodiment of the connector 30A of the present invention. The difference from the connector 30 in Figures 1 and 2 is that in Figures 1 and 2, it is arranged on the telescopic rod R The connector 30 at both ends of the axial direction is a linear connector, and the axial ends of the telescopic rod R can be directly connected to the two adjacent scaffolding columns B by this linear connector. Straight position, another connector 30A shown in Figures 4 and 5 is a corner connector, the corner connector The connection between the collet 31 and the telescopic rod R has two connecting wings 35 spaced apart from each other and a pivot shaft 36 passing through the connecting wings 35, and the axial end of the telescopic rod R is placed between the two connecting wings 35, Then use the pivot shaft 36 to rotatably pass through one end of the axial direction of the telescopic rod R (respectively the head ends of the outer tube 10 and the inner tube 20 ), and there is a space between the two connecting wings 35 and the center line of the collet 31 . An included angle θ1, the preferred embodiment of the included angle θ1 is 45 degrees. With this corner type connector, the telescopic rod R can be used as an oblique reinforcing rod of the scaffold, and is arranged in an oblique way between two adjacent brackets. between the scaffolding uprights B (see Figures 6 and 7).

Although the technical means of the present invention have been disclosed above through the above-mentioned embodiments, they are not intended to limit the present invention. Anyone who is familiar with similar techniques can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of this new model shall be determined by the claims attached to this specification.

10: Outer tube

11: shrink seam

12: Cut the groove

20: Inner tube

30: Connector

31: Chuck

32: Active latch

321: blocking tip

33: Notch

34: Perforation

50: Tightener

51: Tightening part

52: Opening

53: Left Extension Wing

54: Right Extension Wing

551: Bolt

552: Nut

553: Butterfly Wing

554: Lock washer

Claims (7)

A telescopic rod structure of a scaffold, the two axial ends of the telescopic rod can be connected to the scaffold connection plates of two adjacent scaffold columns; the telescopic rod structure comprises: coaxially sleeved together to form a structure An outer tube and an inner tube of the telescopic rod, and a connector respectively arranged at the two axial ends of the telescopic rod; The head end of the outer tube and the inner tube are respectively equipped with the connector, the tail end of the inner tube is inserted into the outer tube from the tail end of the outer tube, and the inner tube and the outer tube are in a loose fit connection relationship , the inner tube can move freely along the axial direction of the outer tube, the cross-sectional shape of the outer tube and the inner tube includes an upper arched part and a lower reinforcement part, and the outer side of the rear end of the outer tube is configured with a hoop a tightening device, the tightening device comprises a tightening part and a tightening element, the tightening part surrounds the rear end of the outer pipe; The cross-sectional shape of the tightening portion is a non-closed annular shape with an opening, and the rear end of the outer tube has a shrinkage seam extending toward the head end of the outer tube, the shrinkage seam being formed by The trailing end of the outer tube initially extends in a direction parallel to the axial direction of the outer tube towards the leading end of the outer tube, at the end of the shrinkage seam there is a groove cut transversely through the outer tube, at the opening There are a left extension wing and a right extension wing on both sides respectively, the left extension wing and the right extension wing are both extended towards the direction away from the axis of the outer tube, and the pressing element is arranged on the left extension wing and the right extension wing. a right extension for compressing the left extension and the right extension against each other; The connector comprises: a collet and a movable latch, the collet is fixed on one end of the axial direction of the telescopic rod, the collet head is provided with a gap and a through hole, the gap is used to clamp the scaffold connection plate, The movable latch can freely pass through the through hole and then be inserted into the scaffold connection The jack for connecting the tray and the jack for pulling away from the rack connecting tray. The telescopic rod structure of the scaffolding according to claim 1, wherein the lateral width of the lower reinforcement part is slightly smaller than the lateral width of the upper arched part, and the shape of the lower reinforcement part includes a left vertical wall symmetrical on both sides of the axis and A right upright wall, the left upright wall and the right upright wall extend along the radial direction of the telescopic rod, the upper ends of the left upright wall and the right upright wall are respectively connected on both sides of the upper arched portion, the left upright wall and the right upright wall The bottom ends are connected to each other as a whole. The telescopic pole structure of the scaffold of claim 1, wherein the outer tube and the inner tube are made of extruded aluminum tubes. The telescopic rod structure of the scaffold as claimed in claim 1, wherein the pressing element comprises a bolt and a nut, and the bolt penetrates the left extension wing and the right extension wing and then engages with the nut. The telescopic rod structure of the scaffold according to claim 4, wherein a butterfly wing is provided on the force-applying end of the bolt, and a locking washer is sleeved on the bolt. The telescopic rod structure of the scaffold according to claim 1, wherein the connector is welded and fixed to the head ends of the outer tube and the inner tube. The telescopic rod structure of the scaffold according to claim 1, wherein the connection between the collet of the connector and the telescopic rod has two pieces of a connecting wing spaced apart from each other and a pivot shaft passing through the connecting wing, the An axial end of the telescopic rod is placed between the two connecting wings, and the pivot shaft rotatably passes through the axial end of the telescopic rod.

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