CN220885422U

CN220885422U - Hollow sleeve moving structure suitable for square tube

Info

Publication number: CN220885422U
Application number: CN202322508501.8U
Authority: CN
Inventors: 刘树冰; 宋姗姗; 王宗政
Original assignee: Gaotang Power Source Fitness Equipment Co ltd
Current assignee: Gaotang Power Source Fitness Equipment Co ltd
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-05-03
Anticipated expiration: 2033-09-15

Abstract

The utility model discloses a hollow sleeve moving structure suitable for a square tube, which belongs to the technical field of hollow sleeves, wherein a connecting piece and a connecting hole are arranged on the outer side of the square tube, a sleeve hole is arranged in the center position of the square tube, a hollow sleeve front piece and a hollow sleeve rear piece which are symmetrical are sleeved on the inner wall of the sleeve hole, the middle positions of the hollow sleeve front piece and the hollow sleeve rear piece are encircled to form a sliding hole, and the inner wall of the sliding hole is in contact connection with the surface of a supporting tube.

Description

Hollow sleeve moving structure suitable for square tube

Technical Field

The utility model relates to the technical field of hollow sleeves, in particular to a hollow sleeve moving structure suitable for square tubes.

Background

At present, in the use of movable square tube, it is necessary to assist in installing the hollow sleeve structure to ensure the stability of movement.

However, the common hollow sleeve in the market is in a single-side mode, when the square tube is used in a supporting tube with a joint supporting shaft in the middle, the hollow sleeve needs to be installed at two ends of the square tube, so that the square tube is easy to contact with a bolt at the joint of the supporting shaft when sliding up and down, the clamping phenomenon can occur, the equipment cannot be normally used, the outer diameter of the hollow sleeve is matched with the inner diameter of the square tube, the size is large, materials and packaging materials cannot be reduced, and the market competitiveness of the packaging materials cannot be improved.

Disclosure of utility model

Aiming at the problems existing in the prior art, the utility model aims to provide a hollow sleeve moving structure suitable for a square tube, which can ensure the moving stability of the square tube through a hollow sleeve front piece and a hollow sleeve rear piece, and simultaneously avoid the contact with a bolt at the joint of a supporting shaft in the moving process through a clearance gap, thereby ensuring the moving stability of the square tube, and the hollow sleeve formed by combining the hollow sleeve front piece and the hollow sleeve rear piece not only reduces the packaging volume, but also saves raw materials through the hollow sleeve front piece and the hollow sleeve rear piece, thereby greatly reducing the product cost and improving the market competitiveness.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a cavity cover moving structure suitable for side pipe, includes the side pipe, the outside of side pipe is provided with connecting piece and connecting hole, the central point of side pipe puts and is equipped with the trepanning, the inner wall of trepanning has cup jointed symmetrical cavity cover anter and cavity cover back piece, the slide opening is encircled to the intermediate position of cavity cover anter and cavity cover back piece, and the inner wall and the surface contact of stay tube of slide opening are connected, the both ends of cavity cover anter and cavity cover back piece all are provided with symmetrical protruding and lower arch, and this cavity cover moving structure suitable for side pipe through cavity cover anter and cavity cover back piece that sets up, not only can guarantee the mobility stability of side pipe, through keeping away the clearance simultaneously, can avoid producing the contact with the bolt of back shaft junction in the removal in-process, guaranteed the mobility stability of side pipe to through cavity cover that cavity cover anter and cavity cover back piece combination formed, not only reduced the packing volume, middle fretwork design has saved raw and other materials, and then great reduction product cost has improved market competition.

Furthermore, the shape of the upper bulge and the lower bulge are U-shaped, and the surfaces of the upper bulge and the lower bulge are in contact connection with the surfaces of the two ends of the square tube, so that the problem that the hollow sleeve falls off in use can be avoided.

Furthermore, the clearance gap is surrounded between the hollow sleeve front piece and the hollow sleeve rear piece, and the width size of the clearance gap is larger than the maximum outer diameter of the bolt at the joint of the support shaft, so that the problem that the square tube cannot move due to the clamping of the hollow sleeve in use can be avoided.

Further, through holes are formed in the surfaces of the front piece and the rear piece of the hollow sleeve, the through holes are in a strip shape and are hollow structures, and the use materials of the hollow sleeve are reduced.

Further, the inner walls at the two ends of the front piece and the rear piece of the hollow sleeve are respectively provided with an inclined chamfer portion, so that the opening sizes at the two ends of the hollow sleeve are increased, and the connection position of the support shaft is convenient to pass through easily.

Further, the cross sections of the front hollow sleeve piece and the rear hollow sleeve piece are U-shaped.

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, through the arranged hollow sleeve front piece and the hollow sleeve rear piece, the moving stability of the square tube can be guaranteed, meanwhile, the contact of the bolt at the joint of the support shaft in the moving process can be avoided through the clearance, and the moving stability of the square tube is guaranteed.

(2) According to the scheme, the hollow sleeve formed by combining the front hollow sleeve piece and the rear hollow sleeve piece not only reduces the packaging volume, but also saves raw materials due to the hollow design in the middle, thereby greatly reducing the product cost and improving the market competitiveness.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a perspective view of the hollow sleeve front and rear panels of the present utility model;

fig. 3 is a sectional view of a square tube according to the present utility model.

The reference numerals in the figures illustrate:

1 supporting tube, 2 square tube, 21 trepanning, 22 connecting piece, 23 connecting hole, 3 hollow sleeve front piece, 31 inclined chamfer, 4 hollow sleeve back piece, 41 upper bulge, 42 lower bulge, 43 through hole, 44 clearance gap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, a hollow sleeve moving structure suitable for square tubes comprises square tubes 2, connecting pieces 22 and connecting holes 23 are formed in the outer sides of the square tubes 2, the square tubes 2 and the external components are connected by the connecting pieces 22 and the connecting holes 23 conveniently, the arrangement positions of the hollow sleeve moving structure can be set according to actual use equipment, sleeve holes 21 are formed in the center positions of the square tubes 2, symmetrical hollow sleeve front pieces 3 and hollow sleeve rear pieces 4 are sleeved on the inner walls of the sleeve holes 21, the hollow sleeve front pieces 3 and the hollow sleeve rear pieces 4 are identical in material and shape structure, the hollow sleeve front pieces 3 and the hollow sleeve rear pieces 4 are combined to form a complete hollow sleeve, moving stability of the square tubes 2 is guaranteed, sliding holes are formed in the middle positions of the hollow sleeve front pieces 3 and the hollow sleeve rear pieces 4 in a surrounding mode, the inner walls of the sliding holes are in contact connection with the surfaces of support tubes 1, and symmetrical upper protrusions 41 and lower protrusions 42 are arranged at two ends of the hollow sleeve front pieces 3 and the hollow sleeve rear pieces 4.

The shape of the upper bulge 41 and the lower bulge 42 is U-shaped, the surfaces of the upper bulge 41 and the lower bulge 42 are in contact connection with the surfaces of the two ends of the square tube 2, so that the problem that a hollow sleeve falls off in use can be avoided, a clearance gap 44 is formed between the hollow sleeve front piece 3 and the hollow sleeve rear piece 4 in a surrounding mode, the width dimension of the clearance gap 44 is larger than the maximum outer diameter of a bolt at the joint of the support shaft, and the phenomenon that the square tube 2 cannot move due to the fact that the hollow sleeve is blocked in use can be avoided.

In this embodiment, through the cavity cover anter 3 and the cavity cover back part 4 that set up, not only can guarantee the mobility stability of square pipe 2, simultaneously through keeping away empty clearance 44, can avoid producing the contact with the bolt of back shaft junction in the removal in-process, guaranteed the mobility stability of square pipe 2.

Example 2

The surface of cavity cover anter 3 and cavity cover back part 4 all is provided with through-hole 43, and through-hole 43's shape is the bar, hollow out construction, has reduced the use material of cavity cover, and cavity cover anter 3 and cavity cover back part 4's both ends inner wall all is provided with slope chamfer portion 31, increases cavity cover both ends opening size, is convenient for easily pass through the junction of back shaft, and cavity cover anter 3 and cavity cover back part 4's cross-sectional shape is the U-shaped.

In this embodiment, through the cavity cover that cavity cover anter 3 and cavity cover back part 4 combination formed, not only reduced the packing volume, middle fretwork design simultaneously has saved the raw and other materials, and then great reduction product cost has improved market competition.

This cavity cover moving structure suitable for side pipe when the installation, can be earlier with cavity cover anter 3 and cavity cover back part 4 direct pass trepanning 21 to make protruding 41 and lower protruding 42 card in the both ends of side pipe 2, thereby accomplish the fixed of cavity cover, then will assemble the side pipe 2 that has the cavity cover and cup joint the equipment with stay tube 1 and can use, 3 and cavity cover back part 4 through the cavity that sets up, not only can guarantee the removal stability of side pipe 2, simultaneously through keeping away empty clearance 44, can avoid the bolt that links up the department in the removal process and produce the contact with the back shaft, guaranteed the removal stability of side pipe 2, and through cavity cover anter 3 and cavity cover back part 4 combination formation's cavity cover, not only reduced the packing volume, the middle fretwork design has been saved raw and other materials simultaneously, and then great reduction product cost, market competition has been improved.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides a cavity cover removes structure suitable for side's pipe, includes side's pipe (2), the outside of side's pipe (2) is provided with connecting piece (22) and connecting hole (23), the central point of side's pipe (2) puts and is equipped with trepanning (21), its characterized in that: the inner wall of the sleeve hole (21) is sleeved with a symmetrical hollow sleeve front piece (3) and a hollow sleeve rear piece (4), a sliding hole is formed by surrounding the middle positions of the hollow sleeve front piece (3) and the hollow sleeve rear piece (4), the inner wall of the sliding hole is connected with the surface of the supporting tube (1) in a contact manner, and symmetrical upper bulges (41) and lower bulges (42) are arranged at two ends of the hollow sleeve front piece (3) and the hollow sleeve rear piece (4).

2. A hollow sleeve moving structure suitable for square tubes according to claim 1, wherein: the upper bulge (41) and the lower bulge (42) are U-shaped, and the surfaces of the upper bulge (41) and the lower bulge (42) are in contact connection with the surfaces of the two ends of the square tube (2).

3. A hollow sleeve moving structure suitable for square tubes according to claim 1, wherein: an empty clearance gap (44) is formed between the hollow sleeve front piece (3) and the hollow sleeve rear piece (4), and the width size of the empty clearance gap (44) is larger than the maximum outer diameter of the bolt at the joint of the support shaft.

4. A hollow sleeve moving structure suitable for square tubes according to claim 1, wherein: the surfaces of the hollow sleeve front piece (3) and the hollow sleeve rear piece (4) are respectively provided with a through hole (43), and the through holes (43) are strip-shaped.

5. A hollow sleeve moving structure suitable for square tubes according to claim 1, wherein: the inner walls of the two ends of the front hollow sleeve piece (3) and the rear hollow sleeve piece (4) are respectively provided with an inclined chamfer part (31).

6. A hollow sleeve moving structure suitable for square tubes according to claim 1, wherein: the cross sections of the hollow sleeve front piece (3) and the hollow sleeve rear piece (4) are U-shaped.