CN215861153U

CN215861153U - Connecting structure of folding rod piece

Info

Publication number: CN215861153U
Application number: CN202121490725.5U
Authority: CN
Inventors: 吴航
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-02-18
Anticipated expiration: 2031-07-02

Abstract

The utility model relates to the technical field of rod piece connection, in particular to a connecting structure of a folding rod piece, which comprises a first sleeve and a second sleeve which are both arranged in a hollow mode in the length direction, wherein the first sleeve comprises a fixed pipe and a connecting pipe which are integrally formed, the connecting pipe can extend into the second sleeve, a first positioning surface is arranged between the outer wall of the fixed pipe and the outer wall of the connecting pipe, and a second positioning surface is arranged at the end part of the second sleeve; the elastic rope is connected with one end of the first sleeve and the other end of the second sleeve, and can drive the connecting pipe to extend into the second sleeve until the first positioning surface abuts against the second positioning surface; the utility model aims to design a connecting structure of a folding rod piece, so that the connecting structure is very flexible and convenient to use, disassemble and assemble.

Description

Connecting structure of folding rod piece

Technical Field

The utility model relates to the technical field of rod piece connection, in particular to a connecting structure of a folding rod piece.

Background

The mutual sleeving between the rod pieces is a common connection mode of the rod pieces or connecting pieces in the mechanical field;

however, the existing sleeving structure is usually tightly propped and fixed between two loop bars, and the two loop bars are not easy to be separated by using friction force, but the two loop bars are completely separated from the connection relationship once separated in the connection mode, so the use mode is inflexible, and the two loop bars need to be matched and aligned again when being sleeved again, which causes inconvenience for a user to sleeve the two loop bars again; in addition, the friction force between the loop bars is often too large, which causes inconvenience for the installation and the disassembly of a user, and the user can directly damage the bar piece and even cause human body injury by too hard force.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a connecting structure of a folding rod piece, which is very flexible and convenient to use, disassemble and assemble.

The technical scheme adopted by the utility model is as follows: a connecting structure of a folding rod piece comprises a first sleeve and a second sleeve which are both arranged in a hollow mode in the length direction, wherein the first sleeve comprises a fixing pipe and a connecting pipe which are integrally formed, the connecting pipe can extend into the second sleeve, a first positioning surface is arranged between the outer wall of the fixing pipe and the outer wall of the connecting pipe, and a second positioning surface is arranged at the end part of the second sleeve; still include the elasticity rope, elasticity rope one end is connected inside first cover, the elasticity rope other end is connected inside the second cover, and the elasticity rope can drive the connecting pipe and stretch into the second cover and reach first locating surface butt second locating surface.

After the structure is used, the first sleeve is separated from the second sleeve, the elastic rope is connected between the first sleeve and the second sleeve, the first sleeve and the second sleeve can be folded, the use is very flexible, and the first sleeve and the second sleeve do not need to be matched and aligned again when being reinstalled, so that the use is very convenient; in addition, the elasticity drive connecting pipe of usable elasticity rope is automatic to stretch into the second sleeve pipe until first locating surface butt second locating surface, and during the dismantlement, tensile first sleeve pipe and second sleeve pipe until the connecting pipe break away from the second sleeve pipe can, made things convenient for user's dismouting greatly.

Further, be provided with the dead slot that keeps away that is used for holding the connecting pipe in the fixed intraductal, keep away dead slot inner wall and connecting pipe outer wall shape adaptation and be cylindric face.

Keep away empty inslot wall and connecting pipe outer wall and be cylindric face for keep away empty inslot wall and connecting pipe outer wall in circumference shape everywhere the same and the smooth transition everywhere of department, reduced the dead condition of card when elastic rope drive connecting pipe kick-backs and stretches into the clearance groove, make and use more convenient.

Further, the end part of the outer wall of the connecting pipe is provided with a chamfer, and the chamfer is arranged in a chamfer angle or a fillet.

The outer wall radius of the end part of the connecting pipe is reduced, the situation that the elastic rope drives the connecting pipe to rebound and stretch into the clearance groove and then the connecting pipe is blocked is reduced, and the use is more convenient.

Furthermore, a first abutting block and a second abutting block are respectively arranged at two ends of the elastic rope; a butt joint surface is formed between the inner wall of the fixed pipe and the inner wall of the connecting pipe, and a first through hole for the elastic rope to pass through is formed in the butt joint surface; the inner wall of the second sleeve pipe extends inwards to form a positioning ring, the inner wall of the positioning ring surrounds to form a second through hole for the elastic rope to pass through, the first abutting block abuts against the abutting surface, and the second abutting block abuts against the outer side face of the positioning ring.

The structure for installing the elastic rope is very simple, and the processing difficulty is reduced.

Furthermore, the first positioning surface and the second positioning surface are both annular.

Therefore, when the first positioning surface and the second positioning surface are mutually abutted, the pressure born between the first positioning surface and the second positioning surface is uniformly distributed in the circumferential direction, the deformation or abrasion is reduced, and the service life of the utility model is prolonged.

Further, still include head rod and second connecting rod, be provided with the first step face towards the outside in the fixed intraductal, be provided with the second step face towards the outside in the second sleeve, head rod fixed connection in the fixed intraductal and with first step face butt location, second connecting rod fixed connection in the second sleeve and with second step face butt location.

The first step face and the second step face limit the extending limit length of the first connecting rod and the extending limit length of the second connecting rod respectively, the first butt joint block is prevented from being damaged by extrusion of the first connecting rod, the second butt joint block is prevented from being damaged by extrusion of the second connecting rod, and the service life of the elastic rope is prolonged.

Furthermore, the outer end of the inner wall of the fixed pipe is provided with a first tapered surface with a wide outer part and a narrow inner part, and the outer end of the inner wall of the second sleeve is provided with a second tapered surface with a wide outer part and a narrow inner part.

Because the first conical surface and the second conical surface are both arranged with the inner part narrow and the outer part wide, the first connecting rod can conveniently extend into the fixed rod, the second connecting rod can conveniently extend into the second sleeve, and the pipe joint is more convenient to install.

Compared with the prior art, the utility model has the following beneficial effects:

1. after the first sleeve is separated from the second sleeve, an elastic rope is connected between the first sleeve and the second sleeve, the first sleeve and the second sleeve can be folded, the use is very flexible, and the first sleeve and the second sleeve do not need to be matched and aligned again when being installed again, so that the use is very convenient; in addition, the elastic rope can drive the connecting pipe to automatically stretch into the second sleeve pipe until the first positioning surface abuts against the second positioning surface, and when the connecting pipe is detached, the first sleeve pipe and the second sleeve pipe are stretched until the connecting pipe is separated from the second sleeve pipe, so that the disassembly and assembly of a user are facilitated.

2. The abutting surfaces are naturally formed when the integrally formed fixed pipe and the connecting pipe with different thicknesses are processed, and the positioning ring structure is very simple, so that the structure for installing the elastic rope is very simple, and the processing difficulty is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic internal view of a portion of the structure of the present invention;

FIG. 4 is one of the exploded views of the present invention;

FIG. 5 is a second exploded view of the present invention;

the label information of the utility model is as follows:

1. a first sleeve; 2. a second sleeve; 3. a fixed tube; 4. a connecting pipe; 5. a first positioning surface; 6. a second positioning surface; 7. an elastic cord; 8. an empty avoiding groove; 9. chamfering; 10. a first abutment block; 11. a second abutment block; 12. an abutting surface; 13. a first through hole; 14. a positioning ring; 15. a second through hole; 16. a first connecting rod; 17. a second connecting rod; 18. a first step surface; 19. a second step surface; 20. a first tapered surface; 21. a second tapered surface;

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 5 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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 invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 3: a connecting structure of a folding rod piece comprises a first sleeve 1 and a second sleeve 2 which are both arranged in a hollow mode in the length direction, wherein the first sleeve 1 comprises a fixed pipe 3 and a connecting pipe 4 which are integrally formed, the connecting pipe 4 can extend into the second sleeve 2, a first positioning surface 5 is arranged between the outer wall of the fixed pipe 3 and the outer wall of the connecting pipe 4, and a second positioning surface 6 is arranged at the end portion of the second sleeve 2; the elastic rope 7 is further included, one end of the elastic rope 7 is connected inside the first sleeve 1, the other end of the elastic rope 7 is connected inside the second sleeve 2, and the elastic rope 7 can drive the connecting pipe 4 to extend into the second sleeve 2 until the first positioning surface 5 abuts against the second positioning surface 6; after the structure is used, the first sleeve 1 is separated from the second sleeve 2, the elastic rope 7 is connected between the first sleeve 1 and the second sleeve 2, the first sleeve 1 and the second sleeve 2 can be folded, the use is very flexible, and the first sleeve 1 and the second sleeve 2 do not need to be matched and aligned again when being remounted, so that the use is very convenient; in addition, the elasticity drive connecting pipe 4 of usable elasticity rope 7 is automatic to be stretched into second sleeve pipe 2 until 5 butt second locating surface 6 of first locating surface, and during the dismantlement, tensile first sleeve pipe 1 and second sleeve pipe 2 until connecting pipe 4 break away from second sleeve pipe 2 can, made things convenient for user's dismouting greatly.

A clearance groove 8 for accommodating the connecting pipe 4 is formed in the fixed pipe 3, and the inner wall of the clearance groove 8 is matched with the outer wall of the connecting pipe 4 in shape and is a cylindrical surface; the inner wall of the clearance groove 8 and the outer wall of the connecting pipe 4 are identical in shape and smooth in transition in the circumferential direction; the end part of the outer wall of the connecting pipe 4 is provided with the chamfer 9, the chamfer 9 is arranged in a chamfer angle or a fillet, so that the radius of the outer wall of the end part of the connecting pipe 4 is reduced, the chamfer 9 is preferably arranged in a fillet, all parts of the chamfer 9 are in smooth transition, and the abrasion of the connecting pipe 4 is reduced; the situation that the elastic rope 7 drives the connecting pipe 4 to rebound and stretch into the clearance groove 8 and then the connecting pipe is blocked is reduced, so that the use is more convenient.

As shown in fig. 4 and 5: a first abutting block 10 and a second abutting block 11 are respectively arranged at two ends of the elastic rope 7; an abutting surface 12 is formed between the inner wall of the fixed pipe 3 and the inner wall of the connecting pipe 4, and a first through hole 13 for the elastic rope 7 to pass through is formed in the abutting surface 12; a positioning ring 14 extends inwards on the inner wall of the second sleeve 2, a second through hole 15 for the elastic rope 7 to pass through is formed by the inner wall of the positioning ring 14 in a surrounding mode, the first abutting block 10 abuts against the abutting surface 12, and the second abutting block 11 abuts against the outer side face of the positioning ring 14; the structure for installing the elastic rope 7 is very simple, and the processing difficulty is reduced; the first abutting block 10 and the second abutting block 11 may be knots of the elastic rope 7 or hard blocks connected with the elastic rope 7.

The first positioning surface 5 and the second positioning surface 6 are both annular; therefore, when the first positioning surface 5 and the second positioning surface 6 are mutually abutted, the pressure born between the first positioning surface 5 and the second positioning surface 6 is uniformly distributed in the circumferential direction, the deformation or abrasion is reduced, and the service life of the utility model is prolonged.

As shown in fig. 1 and 2: the utility model also comprises a first connecting rod 16 and a second connecting rod 17, wherein a first step surface 18 facing outwards is arranged in the fixed pipe 3, a second step surface 19 facing outwards is arranged in the second sleeve 2, the first connecting rod 16 is fixedly connected in the fixed pipe 3 and is abutted with the first step surface 18 for positioning, and the second connecting rod 17 is fixedly connected in the second sleeve 2 and is abutted with the second step surface 19 for positioning; the first step surface 18 and the second step surface 19 respectively limit the extending limit lengths of the first connecting rod 16 and the second connecting rod 17, so that the first abutting block 10 is prevented from being damaged by extrusion of the first connecting rod 16, the second abutting block 11 is prevented from being damaged by extrusion of the second connecting rod 17, and the service life of the elastic rope 7 is prolonged.

A first taper surface 20 with wide outside and narrow inside is arranged at the outer end part of the inner wall of the fixed pipe 3, and a second taper surface 21 with wide outside and narrow inside is arranged at the outer end part of the inner wall of the second sleeve 2; because the first conical surface 20 and the second conical surface 21 are both arranged with a narrow inner part and a wide outer part, the first connecting rod 16 can conveniently extend into the fixed pipe 3, the second connecting rod 17 can conveniently extend into the second sleeve 2, and the installation of the utility model is more convenient.

In the present invention, the inside direction of the first socket 1 means a direction toward the connection pipe 4 in the longitudinal direction of the first socket 1, the inside direction of the second socket 2 means a direction toward the clearance groove 8 in the longitudinal direction of the second socket 2, and the outside direction is opposite to the inside direction.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a connection structure of folding member, includes first sleeve pipe (1) and second sleeve pipe (2) that all cavity set up on the length direction, its characterized in that: the first sleeve (1) comprises a fixed pipe (3) and a connecting pipe (4) which are integrally formed, the connecting pipe (4) can extend into the second sleeve (2), a first positioning surface (5) is arranged between the outer wall of the fixed pipe (3) and the outer wall of the connecting pipe (4), and a second positioning surface (6) is arranged at the end part of the second sleeve (2); still include elasticity rope (7), elasticity rope (7) one end is connected inside first sleeve pipe (1), the elasticity rope (7) other end is connected inside second sleeve pipe (2), and elasticity rope (7) can drive connecting pipe (4) and stretch into second sleeve pipe (2) until first locating surface (5) butt second locating surface (6).

2. A connecting structure of a folding bar of claim 1, wherein: be provided with in fixed pipe (3) and be used for holding dead slot (8) of keeping away of connecting pipe (4), keep away dead slot (8) inner wall and connecting pipe (4) outer wall shape adaptation and be cylindric face.

3. A connecting structure of a folding bar of claim 2, wherein: the connecting pipe (4) outer wall tip is provided with chamfer (9), chamfer (9) are chamfer setting or fillet setting.

4. A connecting structure of a folding bar according to claim 1, 2 or 3, wherein: a first abutting block (10) and a second abutting block (11) are respectively arranged at two ends of the elastic rope (7); an abutting surface (12) is formed between the inner wall of the fixed pipe (3) and the inner wall of the connecting pipe (4), and a first through hole (13) for the elastic rope (7) to pass through is formed in the abutting surface (12); inwards extend on second sleeve pipe (2) inner wall and be provided with holding ring (14), holding ring (14) inner wall surrounds second through-hole (15) that form and supply elasticity rope (7) to pass, first butt joint piece (10) butt is on butt face (12), second butt joint piece (11) and holding ring (14) lateral surface butt.

5. The connection structure of a folding bar of claim 4, wherein: the first positioning surface (5) and the second positioning surface (6) are both annular.

6. A connecting structure of a folding bar according to claim 1, 2, 3 or 5, wherein: still include head rod (16) and second connecting rod (17), be provided with first step face (18) towards the outside in fixed pipe (3), be provided with second step face (19) towards the outside in second sleeve pipe (2), head rod (16) fixed connection in fixed pipe (3) and with first step face (18) butt location, second connecting rod (17) fixed connection in second sleeve pipe (2) and with second step face (19) butt location.

7. The connection structure of a folding bar of claim 6, wherein: the outer end part of the inner wall of the fixed pipe (3) is provided with a first conical surface (20) with a wide outer part and a narrow inner part, and the outer end part of the inner wall of the second sleeve (2) is provided with a second conical surface (21) with a wide outer part and a narrow inner part.