Quick-assembly connecting piece

Abstract

The utility model provides a quick-assembly connecting piece which comprises a sleeve and a pull rod arranged in the sleeve, one end of the sleeve is sequentially provided with an expansion part capable of expanding outwards and a contraction part, one end of the pull rod is located in the expansion part, the other end of the pull rod extends out of the sleeve, and the expansion part can be expanded outwards and the contraction part can be compressed by pulling the pull rod. The beneficial effects of the utility model are that through the design of the contraction part, when the eccentric wheel tensions the pull rod to enable the expansion part to expand, the contraction part locks the pull rod and enables the pull rod not to return to the original position, so that the stability and firmness of cabinet connection can be better ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field, concretely relates to a quick -mounting connecting piece. BACKGROUND

[0002] The quick-mounting connecting piece for plate furniture in prior art is completely pulled by the eccentric wheel to pull rod tight on the side plate, but once the cabinet moves or the eccentric wheel is not locked, etc., the pull rod is equivalent to return to the original position, and the expansion sleeve is not expanded on the side plate, which leads to the cabinet being easy to loosen or even damaged. SUMMARY

[0003] The utility model provides a quick -mounting connecting piece, through design contraction, when eccentric wheel tightens pull rod and makes expansion part expand, contraction will lock pull rod, make it cannot return to the original position.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of quick -mounting connecting piece, including sleeve and pull rod placed in sleeve, the sleeve one end is sequentially provided with the expansion part that can expand outward and contraction, the pull rod one end is in expansion part, the other end extends to sleeve outside, by pulling pull rod, expansion part can expand outward and compression contraction.

[0006] As preferred, the sleeve includes two first tube body and second tube body that are closed, the first tube body and the second tube body are mutually buckled or separated by lock catch structure.

[0007] As preferred, the first tube body and / or second tube body are provided with positioning hole, the second tube body and / or first tube body are provided with positioning tooth that is matched with the positioning hole, the end of positioning tooth is hook-shaped, and the end of positioning tooth is embedded in the positioning hole to connect the first tube body and the second tube body as a whole.

[0008] As preferred, a positioning medium is further provided on the sleeve to prevent the expansion part from being excessively installed.

[0009] As preferred, the outer wall of the expansion part is provided with locking thread, at least one axial cut is provided on the expansion part, and the axial cut divides the expansion part into at least one expansion block that can expand outward.

[0010] As preferred, the inner hole of the expansion part is a conical hole, and the diameter of the conical hole gradually decreases along the direction close to the contraction.

[0011] As preferred, the pull rod has a conical end, and the conical end is in the expansion part and is adapted to the conical hole.

[0012] As preferred, the pulling rod extends to the end outside the sleeve and has a connector which can be buckled with the eccentric wheel, and the eccentric wheel is rotated to pull the pulling rod to expand the expansion part outward.

[0013] Compared with the prior art, the utility model discloses the beneficial effects are through design contract part, when the eccentric wheel tightens the pulling rod and makes the expansion part expand, and contract part will lock the pulling rod simultaneously, so that it can not return to the original position, and the stability and firmness of the cabinet connection can be guaranteed more. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the exploded view schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0017] It should be noted that when a component / part is referred to as "disposed on" another component / part, it can be directly disposed on the other component / part or there can be a middle component / part. When a component / part is referred to as "connected / coupled" to another component / part, it can be directly connected / coupled to the other component / part or there can be a middle component / part. The term "connected / coupled" used in this document can include electrical and / or mechanical physical connection / coupling. The term "including / containing" used in this document refers to the existence of features, steps or components / parts, but does not exclude the existence or addition of one or more other features, steps or components / parts. The term "and / or" used in this document includes any and all combinations of one or more related listed items.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0019] In addition, in the description of the present application, the terms "first", "second" and the like are only for the purpose of description and distinction of similar objects, and there is no sequence between them, and it cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0020] Please refer to Figure 1 andFigure 2 As shown in the drawings, a fast mounting connector comprises a sleeve 1 and a pull rod 2 arranged in the sleeve, the sleeve 1 is provided with an expansion part 3 capable of expanding outward and a contraction part 4 in sequence at one end, the pull rod 2 is arranged in the expansion part 3 at one end and extends out of the sleeve 1 at the other end, the expansion part 3 can expand outward and the contraction part 4 can contract by pulling the pull rod 2.

[0021] The sleeve 1 comprises two first and second pipe bodies 11 and 12 which are buckled or separated by a lock structure. The first and / or second pipe body 11 and 12 is provided with a positioning hole 13, and the second and / or first pipe body 12 and 11 is provided with a positioning tooth 14 corresponding to the positioning hole 13, the end of the positioning tooth 14 is in the form of a hook, and the end of the positioning tooth 14 is embedded in the positioning hole 13 to connect the first and second pipe bodies 11 and 12 into one body.

[0022] The sleeve 1 is further provided with a positioning medium 6 for preventing the expansion part 3 from being excessively installed. The outer wall of the expansion part 3 is provided with a locking thread 34, and the expansion part 3 is provided with at least one axial cut 31 which divides the expansion part 3 into at least one expansion block 32 capable of expanding outward.

[0023] The inner hole of the expansion part 3 is a conical hole 33, the diameter of the conical hole 33 gradually decreases along the direction close to the contraction part 4. The pull rod 2 has a conical end 21 which is arranged in the expansion part 3 and is adapted to the conical hole 33.

[0024] The sleeve 1 is further provided with a positioning medium 6 for preventing the expansion part 3 from being excessively installed. The outer wall of the expansion part 3 is provided with a locking thread 34, and the expansion part 3 is provided with at least one axial cut 31 which divides the expansion part 3 into at least one expansion block 32 capable of expanding outward.

[0025] In use, the expansion part 3 is screwed into the reserved hole of the plate, then the sleeve 1 is inserted into the hole of the plate provided with the eccentric wheel 5, the connecting head 22 of the pull rod 2 is connected with the eccentric wheel 5, the pull rod 2 is pulled by rotating the eccentric wheel 5, the expansion part 3 is expanded and locked in the plate, and the contraction part 4 also locks the pull rod 2 to prevent the pull rod 2 from returning to the original position and causing the expansion part 3 to contract.

[0026] The sleeve 1 is further provided with a positioning medium 6 for preventing the expansion part 3 from being excessively installed. The outer wall of the expansion part 3 is provided with a locking thread 34, and the expansion part 3 is provided with at least one axial cut 31 which divides the expansion part 3 into at least one expansion block 32 capable of expanding outward.

[0027] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A quick-fit connector, characterized in that, The sleeve and the pull rod are arranged in the sleeve, one end of the sleeve is provided with an expansion part and a contraction part in sequence, the pull rod is arranged in the expansion part, and the other end of the pull rod extends out of the sleeve.

2. The quick-connect fitting of claim 1, wherein, The sleeve comprises two first and second pipe bodies which are buckled or separated by a lock structure.

3. The quick-connect fitting of claim 2, wherein, The first and / or second pipe body is provided with a positioning hole, and the second and / or first pipe body is provided with a positioning tooth which is matched with the positioning hole.

4. The quick-connect fitting of claim 2, wherein, The sleeve is further provided with a positioning medium which is used for preventing the expansion part from being excessively installed.

5. The quick-connect fitting of claim 1, wherein, The outer wall of the expansion part is provided with a locking thread, and the expansion part is provided with at least one axial cut which divides the expansion part into at least one expansion block which can be expanded outward.

6. The quick-connect fitting of claim 5, wherein, The inner hole of the expansion part is a conical hole, and the diameter of the conical hole gradually decreases along the direction close to the contraction part.

7. The quick-connect fitting of claim 6, wherein, The pull rod has a conical end which is arranged in the expansion part and matched with the conical hole.

8. The quick-connect fitting of any one of claims 1-7, wherein, The pull rod extends out of the sleeve and has a connecting head which can be buckled with the eccentric wheel, and the eccentric wheel is rotated to pull the pull rod and expand the expansion part outward.

Images