CN220850322U

CN220850322U - Bolt sleeve

Info

Publication number: CN220850322U
Application number: CN202322836003.6U
Authority: CN
Inventors: 黎京; 黎福喜; 谢蓉蓉
Original assignee: Ma'anshan Fulide Rail Transit Equipment Co ltd
Current assignee: Ma'anshan Fulide Rail Transit Equipment Co ltd
Priority date: 2023-10-23
Filing date: 2023-10-23
Publication date: 2024-04-26
Anticipated expiration: 2033-10-23

Abstract

The utility model discloses a bolt sleeve, which comprises a sleeve, wherein a groove is formed in the middle inner wall of the sleeve, threaded through holes are formed in the two sides of the inner wall of the groove, a screw rod is arranged in the threaded through holes, two corresponding clamping pieces are further arranged in the groove, the end parts of the screw rod are sleeved on the back parts of the clamping pieces, and internal threads are further arranged on the inner walls of the sleeve which are positioned on the two sides of the groove; the utility model has simple structure and novel design, when the end parts of the two parts are respectively inserted and screwed from the two sides of the cylinder, the screw rod is rotated to push the internal clamping piece to clamp the end parts of the two parts, and the clamping teeth on the clamping piece are clamped on the screw threads of the parts after clamping, so that the connection between the bolt sleeve and the parts is more compact.

Description

Bolt sleeve

Technical Field

The utility model belongs to the field of mechanical accessories, and particularly relates to a bolt sleeve.

Background

The main function of the bolt sleeve is to fasten two or more parts together to make them keep a tight connection, the existing bolt sleeve structure is generally to form threads in a cylinder, then to insert the ends of the two parts into the cylinder and screw them tightly, so as to realize a tight connection.

Disclosure of Invention

The present utility model is directed to a bolt sleeve for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bolt sleeve, includes the sleeve, set up flutedly on the telescopic middle inner wall, threaded through-hole has been seted up to the both sides of recess inner wall, be equipped with the screw rod in the threaded through-hole, still be equipped with two corresponding clamping pieces in the recess, the tip of screw rod cup joints the back at the clamping piece, is located still be equipped with the internal thread on the sleeve inner wall of recess both sides.

Preferably, the clamping piece is arc structure and sets up in recess department, be equipped with the latch that a plurality of slopes set up on the panel of clamping piece, the back of clamping piece is equipped with a connecting block, the connecting block is arranged in screw thread through-hole department, the tip and the connecting block of screw rod cup joint.

Preferably, the screw rod further comprises a screw cap, the screw cap is located at the outer side of the threaded through hole, a sealing strip is arranged below the screw cap, and the diameter of the sealing strip is matched with that of the threaded through hole.

Preferably, a heat-resistant and oxidation-resistant coating is coated on the barrel body of the sleeve, and a wear-resistant coating is further coated on the heat-resistant and oxidation-resistant coating.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has simple structure and novel design, when the end parts of the two parts are respectively inserted and screwed from the two sides of the cylinder, the screw rod is rotated to push the internal clamping piece to clamp the end parts of the two parts, and the clamping teeth on the clamping piece are clamped on the screw threads of the parts after clamping, so that the connection between the bolt sleeve and the parts is more compact.

Drawings

FIG. 1 is a schematic view of a bolt sleeve according to the present utility model;

FIG. 2 is a schematic front cross-sectional view of a bolt sleeve of the present utility model;

FIG. 3 is a schematic side cross-sectional view of a bolt sleeve of the present utility model;

FIG. 4 is a schematic view of the connection structure of the screw and the clip according to the present utility model;

Fig. 5 is a schematic structural view of the clip of the present utility model.

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.

Referring to fig. 1-5, the present utility model provides a technical solution: the bolt sleeve comprises a sleeve 1, wherein a groove 11 is formed in the middle inner wall of the sleeve 1, internal threads 14 are formed in the inner wall of the sleeve 1 at two sides of the groove 11 and used for inserting and connecting parts, threaded through holes 12 are formed in two sides of the inner wall of the groove 11, a screw rod 13 is arranged in each threaded through hole 12, two corresponding clamping pieces 2 are further arranged in the groove 11, the clamping pieces 2 in the groove are of an arc-shaped structural design,

The end of the screw 13 is sleeved on the back of the clamping piece 2, the screw is screwed to push the two clamping pieces to clamp each other, and after the clamping pieces on the two sides are clamped, the plurality of inclined clamping teeth 21 arranged on the panel of the clamping piece 2 are meshed with the threads of the parts to ensure tight connection.

In this embodiment, the sleeving structure between the screw 13 and the clamping piece 2 specifically includes that a connecting block 22 is arranged at the back of the clamping piece 2, the connecting block 22 is arranged at the threaded through hole 12, and then the end part of the screw 13 is inserted into the threaded through hole and sleeved with the connecting block 22;

In this embodiment, the screw 13 further includes a nut 131, where the nut 131 is located outside the threaded through hole 12, and since the diameter of the sealing strip 132 disposed below the nut 131 is matched with the diameter of the threaded through hole 12, the nut covers the threaded through hole after the screw is screwed, and the sealing strip is embedded in the threaded through hole to seal the threaded through hole.

In this embodiment, a heat-resistant and oxidation-resistant coating is coated on the barrel body of the sleeve 1, and a wear-resistant coating is further coated on the heat-resistant and oxidation-resistant coating, so as to improve the heat resistance and corrosion resistance of the sleeve and improve the wear resistance.

Working principle: two parts to be connected are taken, the parts are inserted and screwed from two sides of the bolt sleeve, then screw heads are used for aligning screw caps of the screw rods, the screw rods on the two sides are screwed, at the moment, clamping pieces on the two sides clamp the parts under the pushing of the screw rods, and a plurality of inclined clamping teeth arranged on the clamping piece panel are meshed with threads of the parts to ensure tight connection.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Bolt sleeve, including sleeve (1), its characterized in that: the novel socket is characterized in that a groove (11) is formed in the middle inner wall of the socket (1), threaded through holes (12) are formed in two sides of the inner wall of the groove (11), a screw rod (13) is arranged in the threaded through holes (12), two corresponding clamping pieces (2) are further arranged in the groove (11), the end part of the screw rod (13) is sleeved on the back of the clamping pieces (2), and internal threads (14) are further arranged on the inner wall of the socket (1) on two sides of the groove (11).

2. A bolt sleeve according to claim 1, wherein: clamping piece (2) are arc structure setting in recess (11) department, be equipped with latch (21) that a plurality of slopes set up on the panel of clamping piece (2), the back of clamping piece (2) is equipped with connecting block (22), threaded through-hole (12) department is arranged in to connecting block (22), the tip and the connecting block (22) of screw rod (13) cup joint.

3. A bolt sleeve according to claim 1, wherein: the screw rod (13) still includes nut (131), nut (131) are located screw thread through-hole (12) outside, the below of nut (131) is equipped with sealing strip (132), the diameter size of sealing strip (132) and the diameter size assorted of screw thread through-hole (12).

4. A bolt sleeve according to claim 1, wherein: a heat-resistant and oxidation-resistant coating is coated on the barrel body of the sleeve (1), and a wear-resistant coating is further coated on the heat-resistant and oxidation-resistant coating.