CN221074959U

CN221074959U - Friction type bolt assembly

Info

Publication number: CN221074959U
Application number: CN202322603153.2U
Authority: CN
Inventors: 谢军
Original assignee: Jiangsu Kedi Construction Engineering Quality Inspection Co ltd
Current assignee: Jiangsu Kedi Construction Engineering Quality Inspection Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-06-04
Anticipated expiration: 2033-09-25

Abstract

The utility model relates to the technical field of bolts and discloses a friction type bolt assembly, which solves the problem that the existing bolt assembly is easy to loosen under vibration and impact and has a shortened service life.

Description

Friction type bolt assembly

Technical Field

The utility model relates to the technical field of bolts, in particular to a friction type bolt assembly.

Background

The bolt is a mechanical part, a cylindrical threaded fastener matched with a nut is a fastener consisting of a head part and a screw rod, the fastener needs to be matched with the nut for fastening and connecting two parts with through holes, and the bolt is the most commonly used and important connecting part in the industry.

The common bolt and nut are easy to loosen in long-time use, so that gaps are generated between workpieces in fastening connection, the workpieces are separated from each other in severe cases, severe production accidents are caused, the bolt is difficult to maintain a fastening state under the condition of long-time vibration and impact, regular inspection and maintenance are needed, and meanwhile, the service life is also reduced.

Disclosure of utility model

The utility model aims to provide a friction type bolt assembly which works by adopting the structure, so that the problem that the existing bolt assembly is easy to loosen under vibration and impact and the service life is shortened is solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the friction type bolt assembly comprises a screw cap, a screw rod is connected to the lower portion of the screw cap, a screw sleeve is sleeved outside the screw rod, a fixing piece is arranged on the upper side surface of the screw cap, a sleeve core is arranged inside the screw sleeve, the sleeve core penetrates through the screw cap and the screw rod, the sleeve core is fixed through the fixing piece, the screw cap, the screw rod and the screw sleeve are tightly connected, and looseness of the screw sleeve is avoided.

Preferably, one end of the screw close to the nut is sleeved with a gasket, the gasket is movably connected with the screw, the contact area of the gasket is increased, friction is increased, and the bolt is firmly locked with an object.

Preferably, a round hole is formed in the screw rod, and penetrates through the screw rod to extend to the nut and penetrate through the nut, so that the sleeve core penetrates through the round hole.

Preferably, the sleeve core is fixedly arranged inside the screw sleeve and extends to the outside of the screw sleeve, a hole is formed in the upper end of the sleeve core, the sleeve core is matched with the round hole, and the hole is favorable for the fixing rod to penetrate through the fixing sleeve core.

Preferably, the mounting is including installing the fixed block in the nut top, and the inside of fixed block runs through and is provided with the dead lever, and the both ends of dead lever are provided with the stopper, and the mounting stabilizes screw rod and swivel nut, prevents that the swivel nut from becoming flexible landing because of the vibration.

Preferably, the dead lever and stopper screwed connection make things convenient for the stopper to dismantle.

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

1. According to the friction type bolt assembly, the sleeve core in the threaded sleeve penetrates through the round hole to extend to the outside of the nut, the fixing rod penetrates through the fixing block and then penetrates through the hole formed in the sleeve core until penetrating through the sleeve core, and the limiting blocks are arranged at the two ends of the fixing rod in a spiral connection mode, so that the fixing rod is prevented from falling off, the threaded sleeve is tightly connected with the threaded rod and the nut, and the phenomenon that the threaded sleeve loosens and slides under vibration and impact is reduced.

Drawings

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

FIG. 2 is a schematic plan view of the present utility model;

FIG. 3 is a schematic view of the structure of the present utility model;

fig. 4 is a schematic structural view of the fixing member of the present utility model.

In the figure: 1. a screw cap; 2. a screw; 21. a round hole; 3. a gasket; 4. a screw sleeve; 41. a sleeve core; 411. a hole; 5. a fixing member; 51. a fixed block; 52. a fixed rod; 53. and a limiting block.

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.

For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings.

Referring to fig. 1-4, a friction type bolt assembly comprises a nut 1, a screw rod 2 is connected below the nut 1, a screw sleeve 4 is sleeved outside the screw rod 2, a fixing piece 5 is arranged on the upper side surface of the nut 1, a sleeve core 41 is arranged inside the screw sleeve 4, and the sleeve core 41 penetrates through the nut 1 and the screw rod 2.

The one end cover that screw rod 2 is close to nut 1 is equipped with gasket 3, gasket 3 and screw rod 2 swing joint, round hole 21 has been seted up to the inside of screw rod 2, round hole 21 runs through inside the extension of screw rod 2 to nut 1, and run through nut 1, cover core 41 fixed mounting is inside the swivel nut 4, and extend to the swivel nut 4 outside, the upper end of cover core 41 is provided with hole 411, cover core 41 and round hole 21 adaptation, mounting 5 is including installing the fixed block 51 in nut 1 top, the inside of fixed block 51 runs through and is provided with dead lever 52, the both ends of dead lever 52 are provided with stopper 53, dead lever 52 and stopper 53 screwed connection, pass round hole 21 through the cover core 41 inside the swivel nut 4 and extend to the nut 1 outside, utilize dead lever 52 to pass fixed block 51, pass the hole 411 that the cover core 41 is inside was seted up again, until run through cover core 41, install stopper 53 through the spiral link at the both ends of dead lever 52, avoid dead lever 52 to run down, make swivel nut 4 and screw rod 2 and nut 1 zonulae occludens, the phenomenon that the swivel nut 4 is not hard up under vibration and impact has been reduced.

Working principle: firstly, the sleeve core 41 is inserted into the round hole 21, the screw rod 2 is driven to sink into the screw sleeve 4 by rotating the screw cap 1, the sleeve core 41 penetrates through the round hole 21 to extend to the outside of the screw cap 1, the fixing rod 52 penetrates through the fixing block 51 and then penetrates through the hole 411 formed in the sleeve core 41 until penetrating through the sleeve core 41, the limiting blocks 53 are arranged at two ends of the fixing rod 52 in a spiral connection mode, the fixing rod 52 is prevented from falling off, the screw sleeve 4 is tightly connected with the screw rod 2 and the screw cap 1, and the phenomenon that the screw sleeve 4 loosens and slides under vibration and impact is reduced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. The utility model provides a friction type bolt assembly, includes nut (1), and the below of nut (1) is connected with screw rod (2), and the outside cover of screw rod (2) is equipped with swivel nut (4), its characterized in that: the nut is characterized in that a fixing piece (5) is arranged on the upper side surface of the nut (1), a sleeve core (41) is arranged in the screw sleeve (4), the sleeve core (41) penetrates through the nut (1) and the screw (2), the sleeve core (41) is fixed through the fixing piece (5), the nut (1), the screw (2) and the screw sleeve (4) are tightly connected, and the screw sleeve (4) is prevented from loosening.

2. A friction type bolt assembly according to claim 1, wherein a gasket (3) is sleeved at one end of the screw rod (2) close to the screw cap (1), and the gasket (3) is movably connected with the screw rod (2).

3. A friction-type bolt assembly according to claim 1, characterized in that the screw (2) is internally provided with a circular hole (21), the circular hole (21) extending through the screw (2) to the nut (1) and through the nut (1).

4. A friction-type bolt assembly according to claim 1, characterized in that the sleeve core (41) is fixedly mounted inside the screw sleeve (4) and extends to the outside of the screw sleeve (4), a hole (411) is formed in the upper end of the sleeve core (41), and the sleeve core (41) is matched with the round hole (21).

5. A friction-type bolt assembly according to claim 1, characterized in that the fixing member (5) comprises a fixing block (51) mounted above the nut (1), a fixing rod (52) is arranged inside the fixing block (51) in a penetrating manner, and limiting blocks (53) are arranged at two ends of the fixing rod (52).

6. A friction-type bolt assembly according to claim 5, wherein the fixing rod (52) is screwed with the stopper (53).