CN219299700U

CN219299700U - Telescopic locking structure of telescopic pipe

Info

Publication number: CN219299700U
Application number: CN202320742636.8U
Authority: CN
Inventors: 黄周生; 李志强
Original assignee: Foshan Nanhai Run'an Aluminium Products Co ltd
Current assignee: Foshan Nanhai Run'an Aluminium Products Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-07-04
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a telescopic locking structure of a telescopic pipe, which is sleeved on the head end of a base pipe and is characterized in that: the lock tube seat is arranged at the head end of the base tube, a lock tube cavity is formed in the lock tube seat, a tube mounting opening is formed at the tail end of the lock tube seat, a tube supporting opening is formed at the head end of the lock tube seat, and a supporting edge is formed by inwards extending the tube supporting opening along the edge of the tube supporting opening; the base pipe is provided with a penetrating opening on the outer wall of the head end of the base pipe, the middle part of the outer wall of the base pipe is provided with a locking opening corresponding to the penetrating opening, and the extrusion block is arranged in the locking opening in a retractable manner; the locking handle is formed with a handle head and a handle section integrally connected to one side of the periphery of the handle head, the handle head is hinged to one side of the locking opening of the lock tube seat, and a flat edge section and an outer protruding section are formed on the other side of the periphery of the handle head. The utility model does not need to carry out excessive processing on the tail end of the movable pipe.

Description

Telescopic locking structure of telescopic pipe

Technical Field

The utility model relates to the technical field of telescopic pipes, in particular to a telescopic locking structure of a telescopic pipe.

Background

The pipe is widely applied, especially applied to furniture manufacture, such as a lifting table or a lifting clothes rack, a plurality of pipes are assembled end to form a telescopic pipe, and corresponding telescopic locking structures are arranged at the assembled parts to manufacture the telescopic pipe into telescopic supporting feet. At present, a conventional telescopic locking structure is usually locked by adopting a spring buckle, when two pipes are assembled end to end, one pipe is a base pipe, the other pipe is a movable pipe which is matched with the base pipe and has an outer diameter smaller than that of the base pipe, the tail end of the movable pipe movably penetrates into the head end of the base pipe, the spring buckle of the telescopic locking structure is fixedly arranged on the head end of the base pipe, a plurality of buckle grooves are concavely arranged on the pipe body of the movable pipe corresponding to the spring buckle from the tail end to the head end at a preset distance, and when the movable pipe can move relative to the base pipe in a telescopic manner, the base pipe and the movable pipe can be locked and fixed when the spring buckle is clamped into any buckle groove. But this kind of flexible locking structure that adopts spring buckle not only need die-cut the mounting hole that supplies its installation on the head end of base tube, still need movable tube to process for cooperation spring buckle, concave a plurality of buckle recesses of setting up on movable tube, increased the production process of flexible supporting legs, influence the production efficiency of flexible supporting legs.

Disclosure of Invention

The utility model aims to provide a telescopic locking structure of a telescopic pipe.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the telescopic locking structure of the telescopic pipe is sleeved on the head end of the base pipe and comprises a locking pipe seat, a locking handle and an extrusion block, wherein the locking pipe seat is arranged on the head end of the base pipe, a locking pipe cavity is formed in the locking pipe seat, a pipe mounting opening is formed at the tail end of the locking pipe seat, a pipe supporting opening is formed at the head end of the locking pipe seat, and a supporting edge is formed by inwards extending the supporting opening along the edge of the supporting opening; the base pipe is provided with a penetrating opening on the outer wall of the head end of the base pipe, the middle part of the outer wall of the base pipe is provided with a locking opening corresponding to the penetrating opening, and the extrusion block is arranged in the locking opening in a retractable manner; the locking handle is formed with a handle head and a handle section integrally connected to one side of the periphery of the handle head, the handle head is hinged to one side of a locking opening of the lock tube seat, a flat edge section and an outer protruding section are formed on the other side of the periphery of the handle head, so that the handle head drives the handle head to rotate, and the handle head enables the flat edge section and the extrusion block to be horizontally or externally protruded to be propped against the extrusion block to drive the extrusion block to move inwards.

As a further technical scheme of the utility model: the inner diameter of the lock tube cavity and the mounting tube opening correspond to the outer diameter of the head end of the base tube, the head end of the base tube can be mounted in the lock tube cavity from the mounting tube opening, and the cavity wall of the lock tube cavity abuts against the outer wall of the head end of the base tube.

As a further technical scheme of the utility model: the inner diameter of the abutting edge is positioned between the caliber of the pipe orifice of the base pipe and the outer diameter of the pipe body of the movable pipe, and the abutting edge is abutted against the end face of the head end of the base pipe when the tail end of the movable pipe penetrates into the head end of the base pipe from the abutting pipe orifice.

As a further technical scheme of the utility model: the locking opening gradually expands from outside to inside, and the shape of the extrusion block corresponds to the locking opening.

As a further technical scheme of the utility model: the upper part and the lower part of the outer wall of the lock tube seat at one side of the locking opening are respectively provided with a handle part, and the handle head part is rotatably arranged between the two handle parts.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a telescopic locking structure of a telescopic pipe, which can drive a handle head to rotate by a handle section through the cooperation among a locking pipe seat, a locking handle and an extrusion block, and the handle head rotates along with the rotation of the handle head, a flat side section or an outer protruding section of the handle head faces towards a locking opening, when the handle head faces towards the locking opening by the flat side section, the flat side section is horizontal with the extrusion block in the locking opening, and when the handle head faces towards the locking opening by the outer protruding section, the outer protruding section is propped against the extrusion block to drive the extrusion block to move inwards, so that the extrusion block is propped against the tail end of a movable pipe arranged in the head end of a base pipe, the base pipe and the movable pipe are effectively locked and fixed, the whole structure is simple and compact, excessive processing of the tail end of the movable pipe is not needed, and the production efficiency of the telescopic supporting leg is improved.

Drawings

Fig. 1 is a schematic view of a telescopic locking structure of a telescopic tube.

Fig. 2 is an anti-disengagement schematic diagram of an anti-disengagement assembly of the telescopic locking structure.

Fig. 3 is a locking principle diagram of the telescopic locking structure of the telescopic tube.

Fig. 4 is a view showing the installation of two limiting stay plates on the tail end of a movable pipe.

Fig. 5 is a schematic view of the anti-slip sleeve.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the scope of the utility model.

Referring to fig. 1, 2 and 3, a telescopic locking structure of a telescopic tube is sleeved on the head end of a base tube 101, and comprises a locking tube seat 11, a locking handle 12 and a squeezing block 13, wherein the locking tube seat 11 is installed on the head end of the base tube 101, a locking tube cavity 111 is formed in the locking tube seat 11, a tube opening 112 communicated with the locking tube cavity 111 is formed at the tail end of the locking tube seat 11, a tube supporting opening 113 communicated with the locking tube cavity 111 is formed at the head end of the locking tube cavity 111, the inner diameter of the locking tube cavity 111 corresponds to the outer diameter of the head end of the base tube 101, a supporting edge 1131 is formed by inwards extending the supporting tube opening 113 along the edge of the supporting tube, the inner diameter of the supporting edge 1131 is positioned between the caliber of the tube opening of the base tube 101 and the outer diameter of a tube body of the movable tube 102, the head end of the base tube 101 can be installed into the locking tube cavity 111 from the opening 112, the cavity wall of the locking tube cavity 111 abuts against the outer wall of the head end of the base tube 101, and the end surface 1131 abuts against the head end of the base tube 101 when the tail end of the movable tube 102 penetrates into the head end of the base tube 101 from the supporting tube opening 113; the outer wall of the head end of the base pipe 101 is provided with a penetrating port 1011, the middle part of the outer wall of the lock tube seat 11 is provided with a locking port 114 corresponding to the penetrating port 1011, and after the lock tube seat 11 is arranged at the head end of the base pipe 101, the locking port 114 and the penetrating port 1011 can be horizontally penetrated at the same side; the extrusion block 13 is arranged in the locking port 114 in a retractable manner, the locking port 114 and the penetrating port 1011 are gradually expanded from outside to inside, the shape of the extrusion block 13 corresponds to the locking port 114, and the extrusion block 13 is prevented from being pulled out from the locking port 114; the locking handle 12 is formed with a handle head 121 and a handle section 122 integrally connected to one side of the periphery of the handle head 121, the handle head 121 is hinged with the locking handle 11 and rotatably arranged between the two handle mounting sections 115, the other side of the periphery of the handle head 121 is formed with a flat edge section 1221 and an outer protruding section 1222, so that the handle section 122 drives the handle head 121 to rotate between the two handle mounting sections 115, and the handle head 121 faces the locking opening 114 with the flat edge section 1221 or the outer protruding section 1222 along with the rotation of the handle head 121; when the handle head 121 faces the locking port 114 with the flat side 1221, the flat side 1221 is horizontal with the extrusion block 13 in the locking port 114, and when the handle head 121 faces the locking port 114 with the convex section 1222, the convex section 1222 presses against the extrusion block 13 to drive the extrusion block 13 to move inwards, and then presses against the tail end of the movable tube 102 installed in the head end of the base tube 101, so as to lock and fix the base tube 101 and the movable tube 102.

Referring to fig. 2, 4 and 5, the telescopic locking structure further includes an anti-disengagement assembly, the anti-disengagement assembly is mounted on the tail end of the movable tube 102, the anti-disengagement assembly includes two limiting support plates 21 and an anti-disengagement sleeve 22, two fixing openings 1021 are oppositely formed on two sides of the tail end of the movable tube 102, each fixing opening 1021 is correspondingly provided with one limiting support plate 21, a clamping block 211 clamped with the fixing opening 1021 is formed on the inner side of the limiting support plate 21, and a main body plate 212 correspondingly abutted against one side of the tail end of the movable tube 102 is formed on the outer side of the limiting support plate 21; the anti-drop pipe sleeve 22 is sleeved on the tail end of the movable pipe 102 and is positioned above the two limiting support plates 21, an anti-drop edge 221 is arranged on the top of the anti-drop pipe sleeve 22 in an outward extending mode, the outer diameter of the anti-drop edge 221 is positioned between the inner diameter of the propping edge 1131 and the caliber of the pipe orifice of the base pipe 101, when the movable pipe 102 stretches out and moves relative to the base pipe 101, the anti-drop edge 221 of the anti-drop pipe sleeve 22 props against the propping edge 1131 of the lock pipe seat 11 to prevent the movable pipe 102 from falling out from the head end of the base pipe 101, and when the movable pipe 102 stretches back and moves relative to the base pipe 101, the two limiting support plates 21 prop against the bottom of the anti-drop pipe sleeve 22 to prevent the anti-drop pipe sleeve 22 from falling out from the tail end of the movable pipe 102.

It can be understood that the method for installing the telescopic locking structure of the telescopic pipe in the telescopic pipe comprises the following steps: first, installing an anti-falling assembly on the tail end of the movable tube 102; second, loading the tail end of the movable tube 102 into the head end of the base tube 101; thirdly, after the extrusion block 13 is arranged in the locking port 114 of the lock tube seat 11, the lock tube seat 11 is arranged at the head end of the base tube 101 along the movable tube 102, so that the head end of the base tube 101 is arranged in the lock tube cavity 111 from the tube loading port 112, the cavity wall of the lock tube cavity 111 abuts against the outer wall of the head end of the base tube 101, and the abutting edge 1131 abuts against the end face of the head end of the base tube 101; fourth, the head 121 of the locking handle 12 is hinged to the lock cylinder holder 11. Thus, the telescopic locking structure of the telescopic tube is installed in the telescopic tube, so that the handle section 122 can drive the handle head 121 to rotate, and the base tube 101 and the movable tube 102 are locked and fixed or the telescopic length of the movable tube 102 on the base tube 101 is adjusted.

In summary, according to the telescopic locking structure of the telescopic tube of the present utility model, through the cooperation among the locking tube seat 11, the locking handle 12 and the extrusion block 13, the handle section 122 can drive the handle head 121 to rotate, and along with the rotation of the handle head 121, the flat side section 1221 or the protruding section 1222 of the handle head 121 faces the locking opening 114, when the handle head 121 faces the locking opening 114 with the flat side section 1221, the flat side section 1221 is horizontal with the extrusion block 13 in the locking opening 114, and when the handle head 121 faces the locking opening 114 with the protruding section 1222, the protruding section 1222 is pressed against the extrusion block 13 to drive the extrusion block 13 to move inwards, so as to press against the tail end of the movable tube 102 installed in the head end of the base tube 101, thereby effectively locking and fixing the base tube 101.

Any combination of the various embodiments of the utility model should be considered as being within the scope of the present disclosure, as long as the inventive concept is not violated; within the scope of the technical idea of the utility model, any combination of various simple modifications and different embodiments of the technical proposal without departing from the inventive idea of the utility model should be within the scope of the utility model.

Claims

1. The utility model provides a flexible locking structure of flexible pipe, cover is established on the head end of base pipe (101), its characterized in that: the locking pipe comprises a locking pipe seat (11), a locking handle (12) and an extrusion block (13), wherein the locking pipe seat (11) is arranged at the head end of a base pipe (101), a locking pipe cavity (111) is formed in the locking pipe seat (11), a pipe mounting opening (112) is formed at the tail end of the locking pipe seat, a pipe supporting opening (113) is formed at the head end of the locking pipe seat, and the pipe supporting opening (113) extends inwards along the edge of the pipe supporting opening (113) to form a supporting edge (1131); the base pipe (101) is provided with a penetrating opening (1011) on the outer wall of the head end, the lock pipe seat (11) is provided with a locking opening (114) corresponding to the penetrating opening (1011) in the middle of the outer wall, and the extrusion block (13) can be arranged in the locking opening (114) in a retractable manner; the locking handle (12) is provided with a handle head (121) and a handle section (122) integrally connected to one side of the periphery of the handle head (121), the handle head (121) is hinged to one side of a locking opening (114) of the locking tube seat (11), the other side of the periphery of the handle head (121) is provided with a flat edge section (1221) and an outer protruding section (1222) for the handle section (122) to drive the handle head (121) to rotate, the handle head (121) faces the locking opening (114) through the flat edge section (1221) or the outer protruding section (1222), and the flat edge section (1221) and the pressing block (13) are enabled to be horizontally pressed against the pressing block (13) or the outer protruding section (1222) to drive the pressing block (13) to move inwards.

2. The telescopic locking structure of claim 1, wherein: the inner diameter of the lock tube cavity (111) and the tube opening (112) corresponds to the outer diameter of the head end of the base tube (101), the head end of the base tube (101) can be installed into the lock tube cavity (111) from the tube opening (112), and the cavity wall of the lock tube cavity (111) abuts against the outer wall of the head end of the base tube (101).

3. The telescopic locking structure of claim 1, wherein: the inner diameter of the abutting edge (1131) is positioned between the caliber of the pipe orifice of the base pipe (101) and the outer diameter of the pipe body of the movable pipe (102), so that the tail end of the movable pipe (102) penetrates into the head end of the base pipe (101) from the abutting pipe orifice (113), and the abutting edge (1131) abuts against the end face of the head end of the base pipe (101).

4. The telescopic locking structure of claim 1, wherein: the locking opening (114) gradually expands from outside to inside, and the shape of the extrusion block (13) corresponds to the locking opening (114).

5. The telescopic locking structure of claim 1, wherein: the lock tube seat (11) is provided with a handle part (115) at the upper part and the lower part of the outer wall of one side of the locking opening (114), and the handle head part (121) is rotatably arranged between the two handle parts (115).