Bolt fastener with pressing structure

Abstract

The utility model relates to the technical field of fasteners, in particular to a bolt fastener with a pressing structure, which comprises a bolt main body, a nut is welded and connected to the top end of the bolt main body, a connecting mechanism is slidably connected to the outer wall of the nut, the connecting mechanism comprises a supporting plate, the supporting plate is slidably connected to the inside of the nut, and the pressing structure is arranged on the supporting plate. And a connecting block is machined on the outer wall of the supporting plate, the outer wall of the bolt body is in threaded connection with a connecting nut, and the connecting nut penetrates into the bolt body. According to the utility model, through the mutual matching of internal parts of the connecting mechanism, the friction force between the bolt main body and the locking surface can be conveniently improved, the connection limit between the bolt main body and the connecting nut can be conveniently released, the connecting nut can be conveniently connected with the bolt main body through threads, and the connection and fixation between the bolt main body and the locking surface can be completed; and the bolt main body and the locking surface are extruded and pressed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fastener, concretely relates to a bolt fastener with a pressing structure. BACKGROUND

[0002] The connection mode of the bolt and the nut cap is the most basic form of the fastening connector, which is widely used in mechanical equipment, automobiles, trains, aerospace and other fields. In particular for engineering machinery assembly plants, the bolt and nut cap fastener has the advantages of convenient standardization mass production, simple structure, low cost, easy installation and easy disassembly. However, in the actual use process, the nut cap is prone to looseness due to vibration, high and low load changes, impact or long-term working state, which directly affects the running performance of the equipment and reduces its safety and reliability. Lightly, it affects the normal work of the equipment and causes economic loss, and heavily, it affects personal safety.

[0003] According to the search, an invention patent with the publication number CN112303098B specifically discloses a bolt fastener with anti-looseness, which comprises a bolt, a nut cap and a fastening connector. The fastening connector comprises a lock ring buckle, and the groove of the bolt and the buckle of the lock ring buckle form a limiting mechanism. Compared with the traditional fastening mode of the existing bolt and nut cap, the technical scheme provided by the invention temporarily locks the fastened bolt and nut cap together through the fastening connector. After the nut cap on the bolt is tightened, the buckle is aligned with the groove of the bolt by rotating the lock ring buckle, and is flipped and pulled into the groove of the bolt between the adjacent two protrusions, forming a locking mechanism between the bolt and the nut cap, thereby solving the problem of looseness of the nut cap due to vibration.

[0004] Although the lock ring buckle and the buckle form a locking mechanism between the bolt and the nut cap in the above-mentioned patent, thereby solving the problem of looseness of the nut cap due to vibration, the fitting surfaces of the bolt are smooth planes when the bolt is fitted with the locking surface of the equipment. When the bolt and the nut are fitted with the locking surface, the friction between the bolt and the locking surface is not enough, which can easily cause the threads on the surface of the bolt to knock against the internal threads of the threaded hole due to vibration, thereby causing the threads to slip.

[0005] Therefore, it is necessary to propose a bolt fastener with a pressing structure to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a bolt fastener with compression structure, through the cooperation between the internal parts of connecting mechanism, it is convenient to improve the friction force of bolt main body between the locking surface during installation and fixation, and it is convenient to remove the connecting limit between connecting nut, it is convenient for connecting nut to be connected with bolt main body through thread, complete bolt main body and the connecting fixation between locking surface, and extrude and compress between bolt main body and locking surface, to solve the problem that the bolt is pasted with the locking surface on equipment in prior art, and the pasting surface is all smooth plane, when bolt and nut are pasted with locking surface, the friction between bolt and locking surface is not enough, and the thread on bolt surface and the internal thread of thread hole are easy to knock each other due to vibration, thereby making the thread appear the problem of slipping tooth.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a bolt fastener with compression structure, including bolt main body, the top of bolt main body is connected with the nut of welding, the outer wall of nut is connected with the connecting mechanism of sliding, and it is inside through the nut to bolt main body, the outer wall of bolt main body is connected with the connecting nut of thread, and it is inside through to bolt main body,

[0008] The connecting mechanism includes a support plate, the support plate is connected to the inside of the nut, and it is through to the bottom end of the nut, the outer wall of the support plate is machined with a connecting block, and is distributed around the outer wall of the nut, the bottom end of the support plate is machined with a connecting column, and it is inside through the nut to the bolt main body, the outer wall of the connecting column is machined with an arc-shaped elastic block on one side, the bottom end of the support plate is machined with a plurality of compression cones, and is annularly distributed at the bottom end of the support plate, the outer wall of the compression cone is machined with an auxiliary convex point on both sides.

[0009] Preferably, the inner wall of the connecting nut is connected with a fixed block, and it is inside through to the bolt main body, the side close to the inner wall of the connecting nut of the fixed block is machined with a support rod, the outer wall of the support rod is sleeved with a support spring, and is located between the fixed block and the inner wall of the connecting nut.

[0010] Preferably, the inside of the nut is machined with a connecting groove matched with the support plate, the outer wall of the connecting block is in the shape of a conical structure, and the outer wall of the nut is provided with a moving groove matched with the connecting block.

[0011] Preferably, the inner wall of the bolt main body is provided with a sliding groove matched with the connecting column, and the outer wall of the bolt main body is provided with a plurality of clamping grooves matched with the arc-shaped elastic blocks on one side.

[0012] Preferably, the compression cone is made of elastic material, and the inside is in a hollow structure, and the auxiliary convex points are machined on both sides of the compression cone at a certain angle.

[0013] Preferably, the inner wall of the connecting nut is provided with internal threads matched with the external threads of the bolt body, and the top end of the connecting nut is provided with a plurality of metal protrusions.

[0014] In the above technical solution, the technical effects and advantages of the utility model are provided.

[0015] 1. By connecting the bolt body on the locking surface through threads, and rotating the connecting nut, the connecting nut is slid on the bolt body through threads, and the fixed block on the inner wall is slid on the outer wall of the bolt body. When the bolt body, the connecting nut and the locking surface are tightly pressed, the fixed block contacts the arc-shaped elastic block, and the fixed block is moved to the clamping groove in the bolt body under the action of the supporting spring, so that the connection between the connecting nut and the bolt body is fixed.

[0016] 2. By connecting the bolt body on the locking surface through threads, the bottom end of the nut on the top end of the bolt body is in contact with the locking surface, and the outer wall of the connecting block is in the form of a tapered structure. When the outer hexagonal wrench contacts the nut, the connecting block is pushed to move the supporting plate in the nut, so that the supporting plate moves to move the connecting column, the connecting column moves to move the arc-shaped elastic block, and the clamping groove is removed. At the same time, the supporting plate drives the compression cone away from the locking surface, and when the bolt body, the connecting nut and the locking surface are tightly pressed, the compression cone and the locking surface are pressed and extruded by each other. The compression cone is deformed under stress to drive the auxiliary protrusions to tightly press the locking surface, so as to improve the friction between the bolt body and the locking surface during installation and fixation, and to tightly press the bolt body and the locking surface. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the sectional structure of the nut of the utility model;

[0020] Figure 3 It is a schematic diagram of the sectional structure of the connecting nut of the utility model;

[0021] Figure 4 It is a schematic diagram of the Figure 2 The enlarged structure of A in the middle is shown in the schematic diagram.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, bolt body; 101, nut; 2, connecting mechanism; 201, support plate; 202, connecting block; 203, connecting column; 204, arc-shaped elastic block; 205, compression cone; 206, auxiliary convex point; 3, connecting nut; 301, fixed block; 302, supporting spring; 303, supporting rod. DETAILED DESCRIPTION

[0024] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be introduced in further detail below in combination with the drawings.

[0025] The utility model provides a bolt fastener with compression structure as shown in Figures 1-4 The utility model discloses a bolt fastener with compression structure, which comprises a bolt body 1, a nut 101 is welded and connected at the top end of the bolt body 1, a connecting mechanism 2 is slidably connected to the outer wall of the nut 101 and penetrates the nut 101 to the inside of the bolt body 1, a connecting nut 3 is threadedly connected to the outer wall of the bolt body 1 and penetrates to the inside of the bolt body 1.

[0026] The connecting mechanism 2 comprises a support plate 201, the support plate 201 is slidably connected to the inside of the nut 101 and penetrates to the bottom end of the nut 101, connecting blocks 202 are machined on the outer wall of the support plate 201 and are distributed around the outer wall of the nut 101, a connecting column 203 is machined at the bottom end of the support plate 201 and penetrates the nut 101 to the inside of the bolt body 1, arc-shaped elastic blocks 204 are machined on one side of the outer wall of the connecting column 203, a plurality of compression cones 205 are machined at the bottom end of the support plate 201 and are annularly distributed at the bottom end of the support plate 201, and auxiliary convex points 206 are machined on the outer wall of the compression cone 205.

[0027] Through the mutual cooperation between the internal parts of the connecting mechanism 2, the friction of the bolt body 1 when being installed and fixed between the locking surfaces can be improved, the connection limiting between the bolt body 1 and the connecting nut 3 can be conveniently released, the connecting nut 3 can be connected with the bolt body 1 through threads, the connection and fixation between the bolt body 1 and the locking surface can be completed, and the bolt body 1 and the locking surface can be extruded and compressed.

[0028] Refer to the drawings in the specification Figures 1-4The inner wall of the connecting nut 3 is slidably connected with a fixing block 301 which penetrates into the inside of the bolt body 1, and the side close to the inner wall of the connecting nut 3 of the fixing block 301 is mechanically processed with a supporting rod 303, the outer wall of the supporting rod 303 is sleeved with a supporting spring 302 which is located between the fixing block 301 and the inner wall of the connecting nut 3, and the mutual cooperation between the internal parts of the connecting nut 3 facilitates the connection fastening between the connecting nut 3 and the bolt body 1, so that the connecting nut 3 will not be loosened and separated from the bolt body 1 due to vibration.

[0029] Referring to the drawings Figures 1-4 The inner wall of the connecting nut 3 is slidably connected with a fixing block 301 which penetrates into the inside of the bolt body 1, and the side close to the inner wall of the connecting nut 3 of the fixing block 301 is mechanically processed with a supporting rod 303, the outer wall of the supporting rod 303 is sleeved with a supporting spring 302 which is located between the fixing block 301 and the inner wall of the connecting nut 3, and the mutual cooperation between the internal parts of the connecting nut 3 facilitates the connection fastening between the connecting nut 3 and the bolt body 1, so that the connecting nut 3 will not be loosened and separated from the bolt body 1 due to vibration.

[0030] Referring to the drawings Figures 1-4 The inner wall of the connecting nut 3 is slidably connected with a fixing block 301 which penetrates into the inside of the bolt body 1, and the side close to the inner wall of the connecting nut 3 of the fixing block 301 is mechanically processed with a supporting rod 303, the outer wall of the supporting rod 303 is sleeved with a supporting spring 302 which is located between the fixing block 301 and the inner wall of the connecting nut 3, and the mutual cooperation between the internal parts of the connecting nut 3 facilitates the connection fastening between the connecting nut 3 and the bolt body 1, so that the connecting nut 3 will not be loosened and separated from the bolt body 1 due to vibration.

[0031] Referring to the drawings Figures 1-4 The inner wall of the connecting nut 3 is slidably connected with a fixing block 301 which penetrates into the inside of the bolt body 1, and the side close to the inner wall of the connecting nut 3 of the fixing block 301 is mechanically processed with a supporting rod 303, the outer wall of the supporting rod 303 is sleeved with a supporting spring 302 which is located between the fixing block 301 and the inner wall of the connecting nut 3, and the mutual cooperation between the internal parts of the connecting nut 3 facilitates the connection fastening between the connecting nut 3 and the bolt body 1, so that the connecting nut 3 will not be loosened and separated from the bolt body 1 due to vibration.

[0032] Referring to the drawings Figures 1-4 The inner wall of the connecting nut 3 is slidably connected with a fixing block 301 which penetrates into the inside of the bolt body 1, and the side close to the inner wall of the connecting nut 3 of the fixing block 301 is mechanically processed with a supporting rod 303, the outer wall of the supporting rod 303 is sleeved with a supporting spring 302 which is located between the fixing block 301 and the inner wall of the connecting nut 3, and the mutual cooperation between the internal parts of the connecting nut 3 facilitates the connection fastening between the connecting nut 3 and the bolt body 1, so that the connecting nut 3 will not be loosened and separated from the bolt body 1 due to vibration.

[0033] The utility model discloses a working principle:

[0034] Referring to the drawingsFigures 1-4 , by bolt body 1 is screwed on the locking surface, and rotate the connecting nut 3, connecting nut 3 rotation by thread sliding on the bolt body 1, while the connecting nut 3 with the inner wall of the fixed block 301 in the bolt body 1 outer wall sliding, in the bolt body 1, connecting nut 3 and the locking surface compression fit, fixed block 301 and arc elastic block 204 contact, and under the action of support spring 302 push support rod 303 with fixed block 301 move, make fixed block 301 from the connecting nut 3 inner wall to the bolt body 1 inside the card slot, connecting nut 3 and bolt body 1 between the connection is fixed;

[0035] Referring to the description of the accompanying drawings Figures 1-4 , by bolt body 1 is screwed on the locking surface, the top end of the bolt body 1 with the bottom end of the lock surface fit, while the outer wall of the connecting block 202 is tapered structure, facilitate the outer hexagonal wrench and the contact of the nut 101, push the connecting block 202 with support plate 201 in the nut 101 move, make support plate 201 move with connecting column 203 move, connecting column 203 move with arc elastic block 204 move, remove the barrier limit of the card slot, at the same time, the support plate 201 drive compression cone 205 and the locking surface away, by bolt body 1, connecting nut 3 and the locking surface compression fit, compression cone 205 and the locking surface force extrusion, compression cone 205 force deformation with auxiliary convex point 206 and the locking surface compression fit, can improve the friction force of the bolt body 1 in the installation and fixation between the locking surface, and the bolt body 1 and the locking surface between the compression fit.

[0036] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above description and description are illustrative in nature, should not be understood as limiting the scope of protection of the present application.

Claims

1. A bolt fastener having a crush structure, characterized by: The utility model provides a bolt body (1), the top end of bolt body (1) is weldedly connected with the nut (101), the outer wall of nut (101) is slidably connected with the connecting mechanism (2), and it is inside to the bolt body (1) through the nut (101), the outer wall of bolt body (1) is threadedly connected with the connecting nut (3), and it is inside to the bolt body (1) through, The connecting mechanism (2) includes a support plate (201) slidably connected inside the nut (101) and extending to the bottom end of the nut (101), the outer wall of the support plate (201) is machined with a connecting block (202) distributed around the outer wall of the nut (101), the bottom end of the support plate (201) is machined with a connecting column (203) extending to the inside of the bolt body (1) through the nut (101), the outer wall of one side of the connecting column (203) is machined with an arc-shaped elastic block (204), the bottom end of the support plate (201) is machined with a plurality of compression cones (205) annularly distributed on the bottom end of the support plate (201), the outer wall of both sides of the compression cone (205) is machined with an auxiliary convex point (206).

2. A bolt fastener having a crush structure according to claim 1, wherein: The inner wall of the connecting nut (3) is slidably connected with a fixed block (301) extending to the inside of the bolt body (1), the fixed block (301) is machined with a support rod (303) on the side close to the inner wall of the connecting nut (3), the outer wall of the support rod (303) is sleeved with a support spring (302) between the fixed block (301) and the inner wall of the connecting nut (3).

3. A bolt fastener having a crush structure according to claim 1, wherein: The inside of the nut (101) is machined with a connecting groove matched with the support plate (201), the outer wall of the connecting block (202) is shaped as a tapered structure, and the outer wall of the nut (101) is provided with a moving groove matched with the connecting block (202).

4. A bolt fastener having a crush structure according to claim 1, wherein: The inner wall of the bolt body (1) is provided with a sliding groove matched with the connecting column (203), and one side of the outer wall of the bolt body (1) is provided with a plurality of clamping grooves matched with the arc-shaped elastic block (204).

5. A bolt fastener having a crush structure according to claim 1, wherein: The compression cone (205) is made of elastic material and has a hollow structure, and the auxiliary convex point (206) is machined on both sides of the compression cone (205) at an angle.

6. A bolt fastener having a crush structure according to claim 2, wherein: The inner wall of the connecting nut (3) is provided with an internal thread matched with the external thread of the bolt body (1), the top end of the connecting nut (3) is machined with a plurality of metal protrusions, and one side of the arc-shaped elastic block (204) is provided with a groove matched with the fixed block (301).

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