Fastening type rust-proof bolt capable of relieving pressure

Abstract

The utility model relates to the technical field of bolts, and discloses a fastening type pressure-relief rust-proof bolt which comprises a bolt body, a pressure relief cavity is formed in the middle of the bolt body, a push rod is slidably connected to the interior of the pressure relief cavity, a rubber pad is fixedly connected to the bottom end of the push rod, and the outer wall of the rubber pad is slidably connected to the inner wall of the pressure relief cavity. A plurality of through holes are evenly formed in the periphery of the middle of the bottom end of the bolt body, a shifting buckle is fixedly connected to the center of the top of the push rod, and a gasket is fixedly connected to the bottom of the top end of the bolt body. The flexible contact mechanism is arranged at the bottom of the bolt body, when the bolt is installed and used, the ball column can make contact with the flexible mechanism and make contact with the ball groove in the nut rotating process, locking and limiting are completed, the nut is prevented from loosening, the ball column makes contact with the ball groove, the nut can be effectively locked, and the service life of the bolt is prolonged. Loosening under vibration or external force is prevented, and connection stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field, concretely is a fastening type pressure relief rustproof bolt. BACKGROUND

[0002] Bolt, mechanical parts, with nut cylindrical threaded fastener, by head and screw two parts constitute a kind of fastener, need to cooperate with nut, bolt is the general term of fastener, bolt is the physical and mathematical principle of using the inclined plane circular rotation and friction force of object, gradually tightens the tool of machine parts, fastening type pressure relief rustproof bolt is a kind of high-performance bolt combined with fastening, pressure relief and anticorrosion function, suitable for a variety of need high reliability and durability industrial applications;

[0003] Bolt is prone to leakage problem when pressure relief, affect use effect, and not set fixed limiting structure, prone to loosening phenomenon, bolt not set fixed limiting structure is prone to loosening under vibration or external force, lead to fastening effect is greatly discounted, even possibly completely invalid, loosening can lead to unnecessary friction and impact between bolt and connecting component, accelerate wear and tear and damage, shorten service life, the loosening of a bolt can trigger the loosening of other adjacent bolts, and further threaten the stability and safety of the entire connecting structure;

[0004] Therefore, a fastening type pressure relief rustproof bolt is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a fastening type pressure relief rustproof bolt to solve the problems in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a fastening type pressure relief rustproof bolt, including bolt main part, the middle part of bolt main part is equipped with pressure relief cavity, the inside of pressure relief cavity is connected with push rod slidingly, the bottom of push rod is fixedly connected with rubber pad, the outer wall of rubber pad is connected with the inner wall of pressure relief cavity slidingly, the bottom middle part of bolt main part is evenly equipped with a plurality of through holes, the top center position of push rod is fixedly connected with button, the bottom of the top of bolt main part is fixedly connected with washer.

[0007] Preferably, the bottom of the washer is provided with an annular groove, and a plurality of connecting springs are fixedly connected around the inner wall of the annular groove.

[0008] Preferably, the end of the connecting spring away from the annular groove is fixedly connected with a sealing ring, and a plurality of ball grooves are provided around the bottom of the sealing ring.

[0009] Preferably, the outer wall of the bolt main body is threadedly connected with a nut, and a plurality of spherical columns are fixedly connected to the top of the nut.

[0010] Preferably, the ball column and the nut are matched.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、 through setting flexible contact mechanism at the bottom of bolt body, when installing and using, in the process of rotating nut, ball column and flexible mechanism can be contacted, and ball column and ball groove are contacted, locking and limiting are completed, nut loosening is avoided, the contact of ball column and ball groove can effectively lock the nut, prevent loosening under vibration or external force, ensure the stability of connection, users only need to rotate nut to complete locking when installing, without additional tools or complex steps, simplify the installation process, improve work efficiency, reduce the friction and wear between nut and bolt, thereby prolong the service life of assembly, through effective locking mechanism, the bearing capacity of bolt connection can be improved, the stability and reliability of overall structure are enhanced;

[0013] 2、 through setting pressure relief cavity in the interior of bolt column, and setting push rod and rubber pad for pushing, internal pressure is effectively released, bolt or connecting piece damage caused by too high pressure is prevented, the safety of system is ensured, rubber pad has good elasticity and damping performance, can absorb impact force, reduce the impact on bolt column and its connecting parts, prolong the service life of equipment, the design of push rod can make the applied force more evenly distributed, avoid local stress concentration, thereby reduce the risk of material fatigue and damage, the design of pressure relief cavity can more conveniently check and maintain equipment, discover and handle potential problems in time, when bolt needs to be adjusted or disassembled, pressure relief cavity can quickly release pressure, make operation more smooth, improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure perspective view of the utility model;

[0015] Figure 2 It is the whole structure bottom view of the utility model;

[0016] Figure 3 It is the whole structure perspective view of the utility model; Figure 2 It is the enlarged view of A place in the utility model;

[0017] Figure 4 It is the vertical section view of bolt body of the utility model.

[0018] In the drawing:

[0019] 1, bolt body; 2, pressure relief chamber; 3, push rod; 4, rubber pad; 5, through hole; 6, buckle; 7, washer; 8, annular groove; 9, connecting spring; 10, sealing ring; 11, ball groove; 12, nut; 13, ball column. DETAILED DESCRIPTION

[0020] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1 to 4 An embodiment provided by the utility model is as follows: a fastening type pressure relief anti-rust bolt, comprising a bolt body 1, a pressure relief chamber 2 is formed in the middle part of the bolt body 1, a push rod 3 is slidably connected in the pressure relief chamber 2, a rubber pad 4 is fixedly connected to the bottom end of the push rod 3, the outer wall of the rubber pad 4 is slidably connected to the inner wall of the pressure relief chamber 2, a plurality of through holes 5 are uniformly formed in the middle part of the bottom end of the bolt body 1, a buckle 6 is fixedly connected to the top center position of the push rod 3, and a washer 7 is fixedly connected to the bottom of the top end of the bolt body 1.

[0022] Among them: the rubber pad 4 is matched with the inner wall of the pressure relief chamber 2, and the material of the washer 7 is selected as rubber.

[0023] Better: according to the temperature change of the use environment, the overall situation of the bolt body 1 is adjusted correspondingly, the push rod 3 is pushed or pulled, the rubber pad 4 slides on the inner wall of the pressure relief chamber 2, under the cooperation of the through holes 5, the gas in the pressure relief chamber 2 is exhausted, the gas pressure in the pressure relief chamber 2 is balanced and adjusted, the buckle 6 is convenient for operation and adjustment, and the washer 7 buffers the adjustment process.

[0024] The bottom of the washer 7 is provided with an annular groove 8, a plurality of connecting springs 9 are fixedly connected to the inner wall of the annular groove 8, a sealing ring 10 is fixedly connected to the end of the connecting spring 9 away from the annular groove 8, a plurality of ball grooves 11 are formed in the bottom of the sealing ring 10, a nut 12 is threadedly connected to the outer wall of the bolt body 1, a plurality of ball columns 13 are fixedly connected to the top of the nut 12, and the ball column 13 is matched with the nut 12.

[0025] Among them: the annular groove 8 is matched with the sealing ring 10 and is clamped;

[0026] Better: with the rotation of the nut 12, it can move vertically along the outer wall of the bolt body 1, when the nut 12 moves towards the direction of the washer 7, it can make the ball column 13 contact with the sealing ring 10, and generate an upward force to make the connecting spring 9 deform, so that the sealing ring 10 is in the inner wall of the annular groove 8 at the bottom of the washer 7, and with the continuous rotation of the nut 12, each ball column 13 can finally correspond to the inner wall of each ball groove 11.

[0027] The working principle of the above implementation is as follows:

[0028] The working steps are as follows:

[0029] First, according to the temperature change of the use environment, the overall situation of the bolt body 1 is adjusted, the push rod 3 is pushed or pulled to make the rubber pad 4 slide on the inner wall of the pressure relief cavity 2, under the cooperation of each through hole 5, the gas in the pressure relief cavity 2 is exhausted, the gas pressure in the pressure relief cavity 2 is balanced and adjusted, the setting of the buckle 6 can conveniently operate the adjustment, the setting of the washer 7 can buffer the process of adjustment, effectively release the internal pressure, prevent the damage of the bolt or the connecting part caused by the high pressure, ensure the safety of the system, the rubber pad 4 has good elasticity and shock absorption performance, can absorb impact force, reduce the impact on the bolt body 1 and its connecting parts, prolong the service life of the equipment, the design of the push rod 3 can make the applied force more evenly distributed, avoid local stress concentration, thereby reduce the risk of material fatigue and damage, the design of the pressure relief cavity 2 can more conveniently check and maintain the equipment, discover and handle potential problems in time, when the bolt needs to be adjusted or disassembled, the pressure relief cavity 2 can quickly release the pressure, make the operation more smooth, improve the work efficiency;

[0030] With the rotation of the nut 12, it can move along the vertical direction of the outer wall of the bolt body 1, when the nut 12 moves towards the direction of the gasket 7, the ball column 13 can be in contact with the sealing ring 10, and an upward force is generated to cause the connecting spring 9 to deform, so that the sealing ring 10 is in the inner wall of the annular groove 8 at the bottom of the gasket 7, and with the continuous rotation of the nut 12, each ball column 13 can finally correspond to the inner wall of each ball groove 11, in the process of rotating the nut 12, the ball column 13 can be in contact with the flexible mechanism, and the ball column 13 can be in contact with the ball groove 11, the locking and limiting are completed, the nut 12 is prevented from loosening, the contact between the ball column 13 and the ball groove 11 can effectively lock the nut 12, prevent it from loosening under the action of vibration or external force, ensure the stability of the connection, and the user only needs to rotate the nut 12 to complete the locking during installation, without the need for additional tools or complex steps, simplify the installation process, improve the work efficiency, reduce the friction and wear between the nut 12 and the bolt, thereby prolong the service life of the assembly, through the effective locking mechanism, the carrying capacity of the bolt connection can be improved, and the stability and reliability of the overall structure are enhanced.

[0031] It should be noted that the relational terms herein 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 such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fastening type pressure relief anti-rust bolt, characterized by: Including bolt body (1), the middle part of bolt body (1) is provided with pressure relief cavity (2), the inside of pressure relief cavity (2) is slidably connected with push rod (3), the bottom of push rod (3) is fixedly connected with rubber pad (4), the outer wall of rubber pad (4) is slidably connected in the inner wall of pressure relief cavity (2), the bottom middle part of bolt body (1) is evenly provided with a plurality of through holes (5), the top center position of push rod (3) is fixedly connected with button (6), the bottom of bolt body (1) is fixedly connected with washer (7).

2. The pressure relief type anti-rust bolt according to claim 1, wherein: The bottom of the washer (7) is provided with an annular groove (8), and a plurality of connecting springs (9) are uniformly fixedly connected around the inner wall of the annular groove (8).

3. The pressure relief fastener according to claim 2, wherein: The end of the connecting spring (9) away from the annular groove (8) is fixedly connected with a sealing ring (10), and a plurality of ball grooves (11) are provided around the bottom of the sealing ring (10).

4. The pressure relief fastener according to claim 3, wherein: The outer wall of the bolt body (1) is threadedly connected with a nut (12), and the top of the nut (12) is fixedly connected with a plurality of ball columns (13).

5. The pressure-relievabie antirust fastening bolt according to claim 4, characterized in that: The ball column (13) is matched with the nut (12).

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