CN213478944U

CN213478944U - Anti-drop connecting structure of thin-wall part

Info

Publication number: CN213478944U
Application number: CN202022096036.8U
Authority: CN
Inventors: 殷予刚
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-18
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses an anticreep connection structure of thin wall spare, including the rivet that is used for connecting two thin wall spares, the rivet includes rivet head and rivet stem, rivet head integrated into one piece is in the one end of rivet stem and supports and establish on the lateral wall of one side thin wall spare wherein, the other end of rivet stem is provided with and is used for supporting the solid mechanism of anticreep card who establishes on opposite side thin wall spare lateral wall, the solid mechanism of anticreep card includes along rivet stem radial sliding's flexible piece and along rivet stem axial motion's stopper, the other end tip of rivet stem is provided with the draw-in groove that is used for stopper axial embedding, the rivet stem lateral wall is provided with and supplies the gliding spout of flexible piece, the spout with the draw-in groove intercommunication, draw-in groove and stopper threaded connection, the length of spout is good at. The utility model provides a need not the riveting, simple structure prevents that the thin wall from warping, can realize that two thin wall spare connect the anticreep connection structure of fixed thin wall spare.

Description

Anti-drop connecting structure of thin-wall part

Technical Field

The utility model belongs to the technical field of bearing connection structure, especially, anti-disengaging connection structure of thin wall spare.

Background

The thin-wall bearing is designed for the requirement of narrow space or special performance of a main machine structure, and is called as the thin-wall bearing when the ratio of the outer diameter to the inner diameter of the bearing is less than or equal to 1.143. The biggest difficulty in processing the thin-wall bearing is that a ferrule is easy to deform in the processing process, the deformation is caused by clamping the outer diameter or the inner diameter, the processing method is not proper, and the problem of deformation is not effectively solved. At present, the traditional thin-wall bearing outer ring can be connected and fixed by axially splicing two thin-wall parts and then riveting the two thin-wall parts by using rivets, but in the riveting process, due to overlarge riveting pressure, the two thin-wall parts are easy to dislocate and deform, so that the defective rate of the thin-wall outer ring is high, and the production cost of an enterprise is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a need not rivet pressure, simple structure prevents that the thin wall from warping, can realize that two thin wall parts connect the anticreep connection structure of fixed thin wall part.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides an anticreep connection structure of thin wall spare, is including the rivet that is used for connecting two thin wall spares, the rivet includes rivet head and rivet rod, rivet head integrated into one piece is in the one end of rivet rod and supports and establish on the lateral wall of one side thin wall spare wherein, the other end of rivet rod is provided with and is used for supporting the solid mechanism of anticreep card who establishes on opposite side thin wall spare lateral wall, the solid mechanism of anticreep card includes along rivet rod radial gliding telescopic block and along rivet rod axial motion's stopper, the other end tip of rivet rod is provided with the draw-in groove that is used for stopper axial embedding, the rivet rod lateral wall is provided with the gliding spout of confession telescopic block, the spout with the draw-in groove intercommunication, draw-in groove and stopper threaded connection, the length of.

By adopting the scheme, during use, the rivet head is abutted against the outer wall of one thin-wall part, then the rivet rod is penetrated through the through holes of the two thin-wall parts, the other end of the rivet rod can penetrate through the outer side wall of the other thin-wall part, the limiting block of the anti-falling clamping mechanism is screwed and embedded into the clamping groove along the axial direction of the threads, the limiting block is gradually filled into the clamping groove and then can drive the telescopic block to radially extend outwards along the sliding groove, the extending state is kept under the limiting effect of the limiting block, and at the moment, the extending amount of the telescopic block can be abutted against the outer side wall of the other thin-wall part, so that the axial limiting of the two. Simple structure, processing simple to operate.

As the utility model discloses a further setting, the stopper is the round platform form that outside-in diameter diminishes towards the one end in the draw-in groove, flexible piece be provided with can cooperate the butt so that the direction inclined plane that stretches out outward in the flexible piece radial with the round platform inclined plane towards the one end of draw-in groove.

By adopting the scheme, the telescopic block can slide outwards more conveniently and rapidly by utilizing the guide effect of the circular truncated cone inclined plane and the guide inclined plane, and the blocking is reduced.

As the utility model discloses a further setting, the other end tip spiro union of rivet stem has a helmet, the brim of a hat of helmet extends to spout notch department along the axial and is formed with annular lug, the lateral wall of flexible piece is provided with and is used for the embedding of annular lug in order to prevent flexible piece radial sliding's arc slot.

By adopting the scheme, the protective cap can protect the limiting block and can play a certain dustproof and waterproof role, and when the annular convex block arranged on the brim of the protective cap can be used for extending the telescopic block, the annular convex block can be in splicing fit with the arc-shaped slot on the telescopic block, so that the telescopic block can be prevented from axially moving, and the telescopic block can be further ensured to be always abutted against the outer side wall of the thin-wall part.

As a further setting of the utility model, the lateral wall of rivet stem has four along the circumference equipartition spout and slip setting are in the spout flexible piece.

By adopting the scheme, the clamping strength is further improved.

As a further setting of the utility model, the stopper is provided with the cross recess of being convenient for revolve wrong stopper towards the outer one end of draw-in groove.

By adopting the scheme, the limiting block is convenient to rotate in a screwing mode, the structure is simple, and the operation is convenient.

The present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic exterior view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Detailed Description

The embodiment of the utility model is shown in fig. 1-3, an anti-separation connecting structure of thin-wall member 1, comprising a rivet 2 for connecting two thin-wall members 1, the two thin-wall members 1 are provided with through holes 11 for the rivet 2 to penetrate, a rivet sleeve 3 is arranged in the rivet 2, the rivet 2 comprises a rivet head 21 and a rivet rod 22, the rivet head 21 is integrally formed at one end of the rivet rod 22 and is abutted against the outer side wall of one side thin-wall member 1, the other end of the rivet rod 22 is provided with an anti-separation clamping mechanism 23 for abutting against the outer side wall of the other side thin-wall member 1, the anti-separation clamping mechanism 23 comprises a telescopic block 231 which slides along the radial direction of the rivet rod 22 and a limit block 232 which moves along the axial direction of the rivet rod 22, the other end of the rivet rod 22 is provided with a slot 221 for the axial embedding of the limit block 232, the side wall of the rivet rod 22, the sliding groove 222 is communicated with the clamping groove 221, the clamping groove 221 is in threaded connection with the limiting block 232, and the length of the limiting block 232 is longer than that of the sliding groove 222. In practical use, the telescopic block 231 can abut against the outer side wall of the thin-wall member 1, but in order to improve the tight strength between the two thin-wall members 1, the gaskets 4 with different thicknesses can be sleeved between the outer side wall of the thin-wall member 1 and the telescopic block 231, so as to improve the connection tightness, in order to enable the telescopic block 231 to better slide along the radial direction and be clamped on the gaskets 4, a guide tangent plane (not shown in the figure) can be arranged on the contact surface between the telescopic block 231 and the gaskets 4, so that the telescopic block 231 can contact with the surface of the gaskets 4 when sliding along the radial direction, and the tangent plane of the lead is slightly deformed to realize the abutment with the gaskets 4.

In this embodiment, four sliding grooves 222 and the telescopic blocks 231 slidably disposed in the sliding grooves 222 are uniformly distributed on the sidewall of the rivet stem 22 along the circumferential direction. A stopper 2221 for preventing the telescopic block 231 from being excessively retracted into the slot 221 is formed in the slide groove 222.

In this embodiment, one end of the limiting block 232 facing into the slot 221 is in a circular truncated cone shape with a gradually decreasing diameter from outside to inside, and one end of the telescopic block 231 facing the slot 221 is provided with a guide inclined surface 2311 which can be abutted with the inclined surface 2321 of the circular truncated cone so as to facilitate the telescopic block 231 to extend outward in the radial direction.

In this embodiment, a protective cap 5 is screwed to the other end of the rivet stem 22, an annular protrusion 51 is formed by extending the brim of the protective cap 5 axially toward the notch of the sliding groove 222, and an arc-shaped slot 2312 for the annular protrusion 51 to be inserted into to prevent the radial sliding of the telescopic block 231 is formed in the side wall of the telescopic block 231.

In this embodiment, a cross-shaped groove 2322 for facilitating screwing of the stopper 232 is disposed at an end of the stopper 232 facing the outside of the slot 221.

The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides an anticreep connection structure of thin wall spare, is including the rivet that is used for connecting two thin wall spares, the rivet includes rivet head and rivet stem, rivet head integrated into one piece in the one end of rivet stem and support and establish on the lateral wall of one of them side thin wall spare, its characterized in that: the other end of rivet pole is provided with and is used for supporting the solid mechanism of anticreep card established on opposite side thin wall spare lateral wall, the solid mechanism of anticreep card includes along rivet pole radial gliding flexible piece and along the stopper of rivet pole axial motion, the other end tip of rivet pole is provided with the draw-in groove that is used for stopper axial embedding, the rivet pole lateral wall is provided with and supplies the gliding spout of flexible piece, the spout with the draw-in groove intercommunication, draw-in groove and stopper threaded connection, the length of stopper is good at the length of spout.

2. The drop-proof connecting structure of a thin-wall part according to claim 1, wherein: the stopper is the round platform form that outside-in diameter gradually diminishes towards the one end in the draw-in groove, flexible piece is provided with the direction inclined plane that can cooperate the butt so that flexible piece radially outwards stretches out with the round platform inclined plane towards the one end of draw-in groove.

3. The drop-proof connecting structure of a thin-wall part according to claim 1, wherein: the other end tip spiro union of rivet stem has a helmet, the brim of a hat of helmet extends to spout notch department along the axial and is formed with annular lug, the lateral wall of flexible piece is provided with and is used for the embedding of annular lug in order to prevent flexible piece radial slip's arc slot.

4. An anti-separation connecting structure of a thin-wall part according to claim 1, 2 or 3, wherein: the lateral wall of rivet stem has four along the circumference equipartition the spout and the slip setting in the spout flexible piece.

5. The drop-proof connecting structure of a thin-wall part according to claim 2, wherein: the limiting block is provided with a cross groove convenient for screwing the limiting block towards one end outside the clamping groove.