CN216777820U

CN216777820U - Horizontal bar locking structure

Info

Publication number: CN216777820U
Application number: CN202123347428.8U
Authority: CN
Inventors: 徐勇剑
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-21
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to a household horizontal bar. A horizontal bar locking structure comprises a connecting piece and a pipe, wherein the connecting piece comprises a first connecting piece and a second connecting piece; the pipe comprises an inner pipe and an outer pipe which can move axially relatively, and an axial locking structure and a circumferential locking structure are arranged between the first connecting piece and the second connecting piece; one of the connecting pieces is connected to the inner pipe in a sliding mode, and the other connecting piece is fixed to the outer pipe. The utility model provides a horizontal bar locking structure which is convenient to adjust in length, good in locking effect and high in safety; the technical problems that in the prior art, the locking effect of a household horizontal bar is poor, the safety is not high, and the length adjustment is inconvenient are solved.

Description

Horizontal bar locking structure

Technical Field

The utility model relates to a household horizontal bar, in particular to a locking structure of a horizontal bar.

Background

Along with the improvement of living standard of people, people who like fitness are more and more, but the outdoor fitness is inconvenient, and can also be influenced by weather, if go to the gymnasium and build body, then the problem that expense is high, inconvenient etc. exists, for this reason, some fitness equipment suitable for use in the family room are on hand. The horizontal bar is one of the favorite sports fitness equipment, the basic structure of the horizontal bar comprises a bracket fixed on the bottom surface and a cross bar horizontally fixed on the bracket for grasping, and the horizontal bar with the structure occupies a large floor, is troublesome to install and fix, and is only suitable for being used in outdoor or large fitness places. In order to meet the requirement that people use a horizontal bar indoors for body-building exercises, a simple horizontal bar suitable for being used indoors is invented.

In the existing horizontal bar on the door, a user rotates to enable the end pipes which are connected with the two ends of the main pipe in a threaded mode to be outwards supported out and prop against door walls on the two sides, the main pipe can be applied with twisting force in the process that the user holds the main pipe to pull up, and if the twisting direction is opposite to the twisting direction which is originally used for supporting the end pipes out, the end pipes can be retracted towards the main pipe, so that the user pulled on the horizontal bar falls down, and safety problems are caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a horizontal bar locking structure which is convenient to adjust in length, good in locking effect and high in safety; the technical problems that in the prior art, the locking effect of a household horizontal bar is poor, the safety is not high, and the length adjustment is inconvenient are solved.

The technical problem of the utility model is solved by the following technical scheme: a horizontal bar locking structure comprises a connecting piece and a pipe, wherein the connecting piece comprises a first connecting piece and a second connecting piece; the pipe comprises an inner pipe and an outer pipe which can move axially relatively, and an axial locking structure and a circumferential locking structure are arranged between the first connecting piece and the second connecting piece; one of the connecting pieces is axially connected to the inner pipe in a sliding manner, and the other connecting piece is fixed to the outer pipe. Let first connecting piece and second connecting piece can not the axial drunkenness each other through axial locking structure to can let first connecting piece and second connecting piece can not the axial throw off, just can guarantee first connecting piece and second connecting piece can not the rotation each other through circumference locking structure, realize guaranteeing that the inner tube and the outer tube locking after the adjustment targets in place are effectual, thereby improve the security that the horizontal bar used. The inner pipe and the outer pipe can move mutually, so that the length of the horizontal bar can be adjusted according to different using conditions, and the application range of the horizontal bar is widened. The first connecting piece and the second connecting piece can be connected to the inner pipe or the outer pipe, and the length of the horizontal bar is adjusted by moving the inner pipe in the outer pipe, so that the first connecting piece or the second connecting piece can slide on the inner pipe no matter which is connected to the inner pipe, but the first connecting piece or the second connecting piece cannot rotate on the inner pipe, and the requirement that the inner pipe and the outer pipe can be locked and fixed when being fixed is met.

Preferably, the axial locking structure of the first connecting piece and the second connecting piece is a stopping protrusion arranged on the second connecting piece, and the stopping protrusion abuts against the end face of the first connecting piece. After the first connecting piece is connected with the second connecting piece, the end face of the first connecting piece is propped against by the stop boss, so that the axial movement cannot be realized, and the axial locking and fixing of the first connecting piece and the second connecting piece are realized.

Preferably, the circumferential locking structures of the first connecting piece and the second connecting piece are mutually embedded teeth, a first convex tooth is arranged on the outer circumferential surface of the first connecting piece, a second convex tooth is arranged on the inner circumferential surface of the second connecting piece, and the first convex tooth and the second convex tooth are mutually embedded. After the first connecting piece and the second connecting piece are connected, the second convex teeth are clamped between the two first convex teeth, so that the first connecting piece and the second connecting piece cannot rotate mutually, and circumferential locking and positioning are realized.

Preferably, the first convex teeth are continuously and uniformly distributed on the first connecting piece, the second convex teeth are uniformly distributed on the second connecting piece, and the number of the first convex teeth is larger than that of the second convex teeth. The convex teeth on the first connecting piece are arranged in a shape similar to a gear, the number of the second convex teeth is small, only 4-8 second convex teeth on the second connecting piece are arranged, the structure is simple, and the cost is low.

Preferably, the inner tube is slidably connected with a first connecting piece, a sliding groove is formed in the outer circumferential surface of the inner tube, the first connecting piece is annular and is sleeved on the inner tube, and a guide protrusion is arranged on the inner wall of the first connecting piece and matched with the sliding groove. Through the protruding direction of direction, let first connecting piece slide in the spout of inner tube to realize the sliding connection of first connecting piece and inner tube.

Preferably, the cross section of the sliding groove is V-shaped, the cross section of the guide protrusion is also V-shaped, and the cross section of the sliding groove is larger than that of the guide protrusion. The spout is bigger, can be when first connecting piece and second connecting piece carry out circumference locking, the card that the second dogtooth can be more smooth goes into between two first dogteeth, that is, when the rigidity of inner tube and outer tube, when needing to lock first connecting piece and second connecting piece, the gap between second dogtooth and two first dogteeth has little disparity and can not completely coincide, can be through slightly rocking first connecting piece, let first connecting piece rock down about in the spout, just can go into the gap between two first dogteeth with second dogtooth card, thereby realize that the circumference locking of first connecting piece and second connecting piece is fixed.

Preferably, the outer tube is fixedly connected with a second connecting piece, the outer tube is provided with an anti-rotation groove and a positioning hole, the second connecting piece is provided with an anti-rotation bulge and a positioning pin, the anti-rotation bulge is matched with the anti-rotation groove, and the positioning hole is matched with the positioning pin. The cooperation of preventing changeing protruding and anti-rotation slot prevents second connecting piece circumferential direction, and the cooperation of locating pin and locating hole lets the second connecting piece can not drop by on the outer tube, guarantees that the second connecting piece is fixed on the outer tube.

Preferably, the first connecting piece is an annular body, the cross section of the first connecting piece is in a T shape, the first connecting piece comprises a first connecting piece main body and a stop disc, first convex teeth are formed on the outer circumferential surface of the first connecting piece main body, and the end face of the stop disc abuts against the stop bulge on the second connecting piece. The first connecting piece body is used for connecting the second connecting piece, circumferential locking and fixing of the first connecting piece body and the second connecting piece body are guaranteed, and axial locking and fixing of the stop disc and the stop bulge are guaranteed through matching of the stop disc and the stop bulge.

Preferably, the second connecting piece is an annular body and comprises a connecting main body and a locking main body, an annular stop surface is arranged between the connecting main body and the locking main body, the connecting main body is sleeved on the outer tube and is provided with a first elastic sheet, and an anti-rotation bulge and a positioning pin are arranged on the inner end surface of the first elastic sheet; the inner wall of the locking main body is provided with second convex teeth, the inner diameter of the locking main body is larger than the outer diameter of the first connecting piece main body, the locking main body is provided with a second elastic sheet, and the inner end face of the second elastic sheet is provided with a stop protrusion. First shell fragment and second shell fragment are all through seting up the elastomer that two groove intervals come out on the outer tube, set up first shell fragment, can utilize elasticity to let the outer tube peg graft earlier to connect in the main part, then the locating pin on the first shell fragment utilizes elasticity to fall into the locating hole on the outer tube, realize fixedly. The same design of the second elastic sheet ensures that the stop disc of the first connecting piece can enter the locking main body firstly, but can not be taken out reversely.

Preferably, two symmetrical inner pipes are arranged in the outer pipe, a screw rod is fixed in the outer pipe, nuts are arranged at the end parts of the two inner pipes, and the nuts are connected to the screw rod in a threaded mode. The lead screw passes through fix with rivet on the outer tube, and two inner tubes can adjust and the outer tube between the distance through the cooperation of screw-nut to the length of adjustment horizontal bar.

Therefore, the horizontal bar locking structure has the following advantages: the inner pipe can slide in the outer pipe, so that the required horizontal bar length can be achieved according to the use requirement, then the inner pipe and the outer pipe are fixed through the axial locking structure and the circumferential locking structure of the first connecting piece and the second connecting piece, and the use safety is high due to the fact that the inner pipe and the outer pipe are locked in the axial direction and the circumferential direction; and utilize the cooperation of spout and direction arch, let first connecting piece can be convenient move on the inner tube, first connecting piece passes through profile of tooth structure locking with the second connecting piece, simple structure, and locking is convenient.

Drawings

Fig. 1 is a perspective view of a horizontal bar locking structure of embodiment 1.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is an enlarged sectional view at a in fig. 2.

Fig. 4 is an exploded view of fig. 3.

Fig. 5 is an enlarged perspective view of the first connecting member in fig. 1.

Fig. 6 is an enlarged perspective view of the second connector in fig. 1.

Fig. 7 is an enlarged perspective view of fig. 6 in another direction.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 and 2 and 3 and 4, a horizontal bar locking structure includes an outer tube 1, and a lead screw 23 is fixed in the outer tube 1 by a rivet 6. The two ends of the screw 23 are respectively connected with an inner tube 2 through nuts 5, the inner tubes 2 are positioned in the outer tubes 1, the inner tubes 2 are rotated, and the axial distance between the inner tubes 2 and the outer tubes 1 can be controlled through the screw nut structure, so that the length of a horizontal bar is determined.

As shown in fig. 5, a V-shaped sliding groove 8 is formed on the outer circumferential surface of the inner pipe 2, and the first connecting member 3 is fitted over the inner pipe 2. The first connecting piece 3 is an annular body, the cross section of the first connecting piece 3 is in a T shape, the first connecting piece 3 comprises a first connecting piece main body 14 and a stop disc 12, a first convex tooth 13 is formed on the outer circumferential surface of the first connecting piece main body 14, a V-shaped guide bulge 9 is formed on the inner circumferential surface of the stop disc 12, the first connecting piece 3 can axially slide on the inner pipe 2 through the matching of the guide bulge 9 and the sliding groove 8, and the guide bulge 9 is slightly smaller than the size of the sliding groove 8, so that the first connecting piece 3 can slightly move left and right on the inner pipe 2. The stop disc 12 has a diameter which is greater than the diameter of the first connector body 14.

As shown in fig. 6 and 7, an anti-rotation groove 10 and a positioning hole 11 are formed on the outer circumferential surface of the end portion of the outer tube 1, and the anti-rotation groove 10 is a waist-shaped groove. A second connector 4 is fixed to the end of the outer tube 1. The second connecting piece 4 is also an annular body, the second connecting piece 4 includes a connecting body 17 and a locking body 16, an annular stop surface 22 is arranged between the connecting body 17 and the locking body 16, the connecting body 17 is sleeved on the outer tube 1, and the end surface of the outer tube 1 abuts against the annular stop surface 22. Two parallel grooves are formed in the connecting body 17, so that a first elastic sheet 19 is formed, an anti-rotation protrusion 21 and a positioning pin 20 are formed on the inner end face of the first elastic sheet 19, the anti-rotation protrusion 21 and the anti-rotation groove 10 are identical in shape and are matched with each other, the end face of the positioning pin 20 is an inclined plane, and the positioning pin 20 is matched with the positioning hole 11. When the second connector 4 is mounted at the end of the outer tube 1, the elasticity of the first elastic sheet 19 and the guiding inclined plane below the positioning pin 20 clamp the connecting part of the second connector 4 into the outer tube 1, the positioning pin 20 falls into the positioning hole 11, and the anti-rotation protrusion 21 falls into the anti-rotation groove 10. Thereby achieving the fixation of the second connector 4 to the outer tube 1.

The inner wall of the locking main body 16 is provided with a second convex tooth 15, the inner diameter of the locking main body 16 is larger than the outer diameter of the first connecting piece main body 14, so that the first connecting piece main body 14 can be easily inserted into the locking main body 16, meanwhile, a plane is formed on the locking main body 16, the plane protrudes out of the locking main body to form a second elastic sheet 18, and the inner end face of the second elastic sheet 18 is provided with a stopping protrusion 7. The outer circumferential surface of the stop disk 12 of the first connecting part abuts against the flat surface, and the end face of the stop disk 12 abuts against the stop projection 7.

When the device is used, the inner pipe is rotated according to the installation working condition, the distance between the inner pipe and the outer pipe is adjusted, and the length is determined. The first connecting piece on the inner pipe is slid, the first connecting body of the first connecting piece is inserted into the locking body of the second connecting piece, the stop convex disc of the first connecting piece is blocked by the stop bulge on the second connecting piece, so that the first connecting piece cannot axially move, namely, the inner pipe cannot axially move, and then the second convex tooth on the second connecting piece is inserted between two adjacent first convex teeth of the first connecting piece, so that the first connecting piece cannot circumferentially move, namely, the inner pipe cannot circumferentially move. Thereby through the fixed connection of first connecting piece and second connecting piece, realized the fixed connection of inner tube and outer tube.

Claims

1. A horizontal bar locking structure comprises a connecting piece and a pipe, wherein the connecting piece comprises a first connecting piece and a second connecting piece; the pipe comprises an inner pipe and an outer pipe which can move axially relative to each other, and is characterized in that: an axial locking structure and a circumferential locking structure are arranged between the first connecting piece and the second connecting piece; one of the connecting pieces is axially connected to the inner pipe in a sliding manner, and the other connecting piece is fixed to the outer pipe.

2. The horizontal bar locking structure according to claim 1, wherein: the axial locking structure of the first connecting piece and the second connecting piece is a stop bulge arranged on the second connecting piece, and the stop bulge abuts against the end face of the first connecting piece.

3. The horizontal bar locking structure according to claim 1, wherein: the circumferential locking structures of the first connecting piece and the second connecting piece are mutually embedded teeth, a first convex tooth is arranged on the outer circumferential surface of the first connecting piece, a second convex tooth is arranged on the inner circumferential surface of the second connecting piece, and the first convex tooth and the second convex tooth are mutually embedded.

4. The horizontal bar locking structure according to claim 3, wherein: the first convex teeth are continuously and uniformly distributed on the first connecting piece, the second convex teeth are uniformly distributed on the second connecting piece, and the number of the first convex teeth is larger than that of the second convex teeth.

5. The horizontal bar locking structure according to any one of claims 1 to 4, wherein: the inner tube is connected with a first connecting piece in a sliding mode, a sliding groove is formed in the outer circumferential surface of the inner tube, the first connecting piece is annular, the first connecting piece is connected to the inner tube in a sleeved mode, a guide protrusion is arranged on the inner wall of the first connecting piece, and the guide protrusion is matched with the sliding groove.

6. The horizontal bar locking structure according to claim 5, wherein: the cross section of the sliding groove is V-shaped, the cross section of the guide protrusion is also V-shaped, and the cross section of the sliding groove is larger than that of the guide protrusion.

7. The horizontal bar locking structure according to any one of claims 1 to 4, wherein: the outer pipe on fixedly connected with second connecting piece, be equipped with anti-rotation groove and locating hole on the outer pipe, the second connecting piece on be equipped with and prevent changeing arch and locating pin, prevent changeing protruding and prevent changeing the slot fit, the locating hole and locating pin fit.

8. The horizontal bar locking structure according to any one of claims 1 to 4, wherein: the first connecting piece is an annular body, the cross section of the first connecting piece is in a T shape, the first connecting piece comprises a first connecting piece main body and a stop disc, first convex teeth are formed on the outer circumferential surface of the first connecting piece main body, and the end face of the stop disc abuts against a stop bulge on the second connecting piece.

9. The horizontal bar locking structure according to any one of claims 1 to 4, wherein: the second connecting piece is an annular body and comprises a connecting main body and a locking main body, an annular stop surface is arranged between the connecting main body and the locking main body, the connecting main body is sleeved on the outer tube and is provided with a first elastic sheet, and the inner end surface of the first elastic sheet is provided with an anti-rotation bulge and a positioning pin; the inner wall of the locking main body is provided with second convex teeth, the inner diameter of the locking main body is larger than the outer diameter of the first connecting piece main body, the locking main body is provided with a second elastic sheet, and the inner end face of the second elastic sheet is provided with a stop protrusion.

10. The horizontal bar locking structure according to any one of claims 1 to 4, wherein: the inner pipe is provided with two symmetrical inner pipes, the outer pipe is internally fixed with a screw rod, and the end parts of the two inner pipes are provided with nuts which are in threaded connection with the screw rod.