Automobile fastener bolt

Abstract

The utility model relates to the technical field of automobile bolts, in particular to an automobile fastener bolt which comprises an outer hexagon nut and a screw, the screw is fixedly connected to the bottom end of the outer hexagon nut, a rust removal assembly is arranged in the screw, and a steering indicator is fixedly connected to one side of the upper surface of the outer hexagon nut. The rust removal assembly comprises a mounting cavity, the mounting cavity is formed in the inner side of the screw rod, the bottom of the mounting cavity is filled with a sponge layer, a first liquid drainage hole is formed in the bottom of the screw rod, a second liquid drainage hole is formed in the bottom end of the screw rod, and a pressing disc is slidably connected to the middle of the screw rod; according to the automobile fastener bolt, the maintenance difficulty and the maintenance cost are reduced, and the problems that a traditional automobile fastener bolt is prone to rusting and difficult to disassemble in a humid or coastal area are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile bolt, specifically is a kind of automobile fastener bolt. BACKGROUND

[0002] Automobile fastener bolt is the key part for firmly connecting and fixing automobile parts, they play a vital role in the assembly process of automobile, ensure the structure of automobile firm, safe and reliable;

[0003] Bolt is a cylindrical part with external thread, usually used with nut, there are many types of automobile bolt, including hexagonal head bolt, internal hexagonal bolt, external hexagonal bolt, round head bolt, half round head bolt, each type has its specific application scenario;

[0004] When automobile drives or parks in humid environment, moisture easily penetrates to bolt surface, and chemical reaction occurs with metal, thereby forming rust, especially in rainy season or coastal area, since air humidity is big and salt content is high, this environment can accelerate the rusting process of bolt, once rusting is serious, bolt will become extremely difficult to disassemble, if forced disassembly is carried out, bolt damage and part damage are easily caused, increase the difficulty and cost of maintenance, therefore, aiming at the above problems, a kind of automobile fastener bolt is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of automobile fastener bolt to solve the problem that bolt is easily rusted in rainy season or coastal area, so that bolt will become extremely difficult to disassemble, if forced disassembly is carried out, bolt damage and part damage are easily caused.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides an automobile fastener bolt, including outer hexagonal nut and screw rod, the bottom end fixed connection has screw rod to the outer hexagonal nut, the inside of screw rod is equipped with rust removal subassembly, one side of outer hexagonal nut upper surface is fixedly connected with the steering instruction mark, the other side of outer hexagonal nut upper surface is fixedly connected with the location mark, the rust removal subassembly includes installation cavity, installation cavity is set up in the inside of screw rod, the bottom of installation cavity is filled with sponge layer, the bottom of screw rod is equipped with first drainage hole, the bottom end of screw rod is equipped with second drainage hole, the middle part of screw rod is slidably connected with the pressure disc, the middle part of outer hexagonal nut is equipped with the connecting cavity with installation cavity cooperation, be equipped with pressure assembly between connecting cavity and installation cavity, the pressure assembly includes adjusting disc, adjusting disc sets up in the inner wall of connecting cavity, the outside of adjusting disc is fixedly connected with the locating bead, the bottom end of locating bead is fixedly connected with the connecting rod, the bottom end of connecting rod is fixedly connected with the connecting disc, the bottom end of connecting disc is elastically connected with reset spring, the inside of connecting cavity is equipped with the first guide groove with locating bead cooperation, the top of the inside of installation cavity is equipped with the second guide groove with locating bead cooperation, first guide groove is linked with second guide groove.

[0008] As the further optimization of the utility model, the second guide groove is below the first guide groove, the surface of the locating bead is in sliding cooperation with the inner side of the first guide groove and the inner side of the second guide groove, the first guide groove is arc-shaped, and the first guide groove is vertical strip-shaped.

[0009] As the further optimization of the utility model, the top end of the first guide groove corresponds to the position of the steering instruction mark, and the bottom end of the first guide groove corresponds to the position of the location mark.

[0010] As the further optimization of the utility model, the connecting cavity and the installation cavity are through from top to bottom, the outer side of the adjusting disc is in sliding connection with the inner side of the connecting cavity and the inner side of the installation cavity, the adjusting disc has the same shape as the connecting disc, the first liquid supplementing hole is arranged in the inside of the adjusting disc, the inside of the connecting rod, and the inside of the connecting disc, and the insertion hole in communication with the first liquid supplementing hole is arranged on both sides of the middle part of the adjusting disc.

[0011] As the further optimization of the utility model, the top end of the outer hexagonal nut is provided with the protection groove through from top to bottom, the inner side of the protection groove is provided with the protection cover, and the protection cover is above the adjusting disc.

[0012] As the further optimization of the utility model, the pressure disc is above the sponge layer, the second liquid supplementing hole is arranged in the middle part of the pressure disc, the bottom end of the second liquid supplementing hole corresponds to the top of the sponge layer, and the top end of the pressure disc is in sliding cooperation with the bottom end of the reset spring.

[0013] As the further optimization of the utility model, wherein: the first drainage hole is provided with a plurality of, the first drainage hole is located at the outside of the sponge layer, a plurality of the first drainage hole is equidistantly arranged in the thread groove at the bottom of the screw rod, the first drainage hole and the mounting cavity are mutually penetrated, the second drainage hole is equidistantly provided with a plurality of, a plurality of the second drainage hole is circularly arranged, the second drainage hole is located at the bottom end of the sponge layer, the mounting cavity and the second drainage hole are penetrated up and down.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, through the rust removal assembly, the rust removal lubricating liquid can be quickly filled to the thread groove corrosion position by the cooperation of the pressure assembly, the corrosion structure is damaged and the lubricating effect is achieved, the bolt which is difficult to rotate due to corrosion can be easily unscrewed, the difficulty and cost of maintenance are reduced, and the problems of rusting of the traditional automobile fastener bolt in humid or coastal areas and difficult disassembly are effectively solved.

[0016] Specifically, the sponge layer is pressed by the connecting disc in the pressure assembly, and the rust removal lubricating liquid is filled to the bottom end and the outside of the screw rod through the cooperation of the first drainage hole and the second drainage hole, the rust removal lubricating liquid can damage the corrosion structure and play a lubricating role, the pressure assembly has good positioning property, which is convenient for resetting and reduces the waste of rust removal lubricating liquid caused by misoperation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic view of the utility model;

[0018] Figure 2 It is the cross-sectional structure schematic view of the utility model;

[0019] Figure 3 It is the cross-sectional structure schematic view of the utility model;

[0020] Figure 4 It is the cross-sectional structure schematic view of the utility model;

[0021] Figure 5 It is the explosion structure schematic view of the pressure assembly of the utility model;

[0022] Figure 6 It is the structure schematic view of the A place of the utility model; Figure 5

[0023] ​In the figure: 1, outer hexagonal nut; 2, screw rod; 3, rust removal assembly; 31, installation cavity; 32, sponge layer; 33, first drainage hole; 34, second drainage hole; 35, pressing disc; 350, second liquid supplementing hole; 36, connecting cavity; 37, pressing assembly; 371, adjusting disc; 372, positioning bead; 373, connecting rod; 374, connecting disc; 375, reset spring; 376, first guide groove; 377, second guide groove; 378, first liquid supplementing hole; 379, insertion hole; 4, turning indicating mark; 5, positioning mark; 6, protection groove; 7, protection cover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0026] Please refer to Figures 1-6 The present application provides a technical solution:

[0027] The utility model provides an automobile fastener bolt, including outer hexagonal nut 1 and screw rod 2, the bottom fixedly connected with screw rod 2 of outer hexagonal nut 1 is equipped with rust removal subassembly 3 in the inside of screw rod 2, one side of outer hexagonal nut 1 upper surface is fixedly connected with steering instruction mark 4, the other side of outer hexagonal nut 1 upper surface is fixedly connected with positioning mark 5, rust removal subassembly 3 includes installation cavity 31, installation cavity 31 is set up in the inside of screw rod 2, the bottom of installation cavity 31 is filled with sponge layer 32, and sponge layer 32 has good water absorption, before the automobile fastener bolt leaves factory, the inside of sponge layer 32 is filled with appropriate rust removal lubricating liquid, the bottom of screw rod 2 is equipped with first drainage hole 33, and the bottom of screw rod 2 is equipped with second drainage hole 34, first drainage hole 33 is set up several, and first drainage hole 33 is located the outside of sponge layer 32, several first drainage holes 33 are equidistantly arranged in the thread groove of the bottom of screw rod 2, and first drainage hole 33 is penetrated with installation cavity 31, and second drainage hole 34 is equidistantly arranged several, and several second drainage holes 34 are circularly arranged, and second drainage hole 34 is located the bottom of sponge layer 32, and installation cavity 31 is penetrated with second drainage hole 34, and the middle sliding connection of screw rod 2 is equipped with pressure disc 35, and the middle of outer hexagonal nut 1 is equipped with the connecting cavity 36 with installation cavity 31 cooperation, and the pressure assembly 37 between connecting cavity 36 and installation cavity 31, pressure assembly 37 includes adjusting disc 371, adjusting disc 371 is arranged in the inner wall of connecting cavity 36, the outside of adjusting disc 371 is fixedly connected with positioning bead 372, the bottom of positioning bead 372 is fixedly connected with connecting rod 373, the bottom of connecting rod 373 is fixedly connected with connecting disc 374, the bottom of connecting disc 374 is elastically connected with reset spring 375, the inside of connecting cavity 36 is equipped with the first guide groove 376 with positioning bead 372 cooperation, and the top of the inside of installation cavity 31 is equipped with the second guide groove 377 with positioning bead 372 cooperation, and the first guide groove 376 is communicated with the second guide groove 377, and connecting disc 374 passes through the first guide groove 376 rotation and then down mode, reduces the waste of rust removal lubricating liquid of the misoperation of non-operator, and reset spring 375 provides the moving stroke for the sliding of positioning bead 372 on the first guide groove 376, when positioning bead 372 continuously moves down in the second guide groove 377 path, connecting disc 374 pushes down pressure disc 35 by reset spring 375.

[0028] As the further implementation of the scheme, the second guide groove 377 is located below the first guide groove 376, the surface of the positioning bead 372 is in sliding cooperation with the inner side of the first guide groove 376 and the inner side of the second guide groove 377, the first guide groove 376 is arc-shaped, and the first guide groove 376 is vertical strip-shaped, which provides guidance for the movement of the adjusting disc 371;

[0029] As a further implementation of the present scheme, the top end of the first guide groove 376 corresponds to the position of the turning indication mark 4, and the bottom end of the first guide groove 376 corresponds to the position of the positioning mark 5. The turning indication mark 4 indicates the turning direction, and the positioning mark 5 indicates the turning termination angle. This arrangement facilitates reminding the user to operate correctly;

[0030] As a further implementation of the present scheme, the top end of the hexagonal nut 1 is provided with a protective groove 6 that penetrates the connecting cavity 36 vertically, and the inner side of the protective groove 6 is provided with a protective cover 7. The protective cover 7 is located above the adjusting disc 371. This arrangement protects the adjusting disc 371;

[0031] As a further implementation of the present scheme, the connecting cavity 36 vertically penetrates between the mounting cavity 31, and the outer side of the adjusting disc 371 is slidingly connected with the inner side of the connecting cavity 36 and the inner side of the mounting cavity 31. The adjusting disc 371 has the same shape as the connecting disc 374. The first liquid supplementing hole 378 is arranged in the inner side of the adjusting disc 371, the inner side of the connecting rod 373, and the inner side of the connecting disc 374. The two sides of the middle part of the adjusting disc 371 are provided with the insertion hole 379 that penetrates the first liquid supplementing hole 378. This arrangement facilitates adjusting and pressing the adjusting disc 371 by inserting the flat screwdriver into the insertion hole 379;

[0032] As a further implementation of the present scheme, the pressing disc 35 is located above the sponge layer 32. The middle part of the pressing disc 35 is provided with the second liquid supplementing hole 350, and the bottom end of the second liquid supplementing hole 350 corresponds to the upper side of the sponge layer 32. The top end of the pressing disc 35 is slidingly connected with the bottom end of the reset spring 375. This arrangement facilitates resetting the pressing assembly 37 for next use.

[0033] Work flow: When installing the automobile fastener bolt, the screw rod 2 is correspondingly arranged in the threaded hole of the connecting piece, the hexagonal nut 1 is pressed by the hexagonal wrench, the screw rod 2 is smoothly rotated into the threaded hole, and the installation is completed. However, when disassembling, if the screw rod 2 and the threaded hole of the automobile connecting piece cannot rotate the hexagonal nut 1 due to rust, the protective cover 7 above the protective groove 6 is opened, the flat screwdriver is inserted into the insertion hole 379, the adjusting disc 371 is rotated to the angle of the positioning mark 5, the turning indication mark 4 clearly shows the rotation direction, the positioning mark 5 indicates the termination angle of the rotation, the user can operate correctly, the positioning bead 372 of the adjusting disc 371 slides in the inner side of the first guide groove 376, provides guidance for the rotation of the adjusting disc 371, and when the positioning bead 372 rotates above the second guide groove 377, it corresponds to the position of the positioning mark 5. The connecting disc 374 is rotated and then pressed through the first guide groove 376, which reduces the waste of rust removal and lubricating liquid caused by misoperation. The reset spring 375 provides a movement stroke for the sliding of the positioning bead 372 on the first guide groove 376;

[0034] Next, the adjusting disc 371 is pressed by a flat screwdriver, the adjusting disc 371 pushes the connecting disc 374 to move downwards through the connecting rod 373, the connecting disc 374 pushes the pressing disc 35 to move downwards through the reset spring 375, the sponge layer 32 is pressed, the sponge layer 32 discharges the rust removal lubricating liquid filled in the inside through the contraction of the air hole, under the action of the pressure, the rust removal lubricating liquid fills to the bottom end and the outside of the screw rod 2 through the cooperation of the first liquid discharge hole 33 and the second liquid discharge hole 34, when the rust removal lubricating liquid overflows from the threaded hole of the automobile connecting piece, it indicates that the rust removal agent has wrapped the threaded groove sufficiently, at this time, the pressure can be stopped, the rust removal lubricating liquid can destroy the rust structure and play a lubricating role, so as to reduce the force required when disassembling, after standing for a period of time, the rusted screw rod 2 can be easily unscrewed;

[0035] When the pressure is stopped, the reset spring 375 pushes the connecting disc 374, the connecting rod 373 and the adjusting disc 371 to move upwards under the action of the elastic force, so as to facilitate the next use, at the same time, in order to facilitate the supplement of the rust removal lubricating liquid in the automobile fastener bolt, the rust removal lubricating liquid can be injected into the first liquid supplement hole 378 through the syringe, the rust removal lubricating liquid flows into the second liquid supplement hole 350 below through the first liquid supplement hole 378, and then flows into the surface of the sponge layer 32, the sponge layer 32 adsorbs the rust removal lubricating liquid, so as to be reused later.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An automotive fastener bolt, comprising an external hexagonal nut (1) and a bolt (2), characterized in that: The bottom end of the external hexagonal nut (1) is fixedly connected to a screw rod (2), and the screw rod (2) is provided with a rust removal component (3). A turn indicator (4) is fixedly connected to one side of the upper surface of the external hexagonal nut (1), and a positioning mark (5) is fixedly connected to the other side of the upper surface of the external hexagonal nut (1). The rust removal component (3) includes an installation cavity (31), which is located inside the screw (2). The bottom of the installation cavity (31) is filled with a sponge layer (32). The bottom of the screw (2) is provided with a first drain hole (33) and a second drain hole (34). A pressure plate (35) is slidably connected to the middle of the screw (2). The middle of the external hexagonal nut (1) is provided with a connecting cavity (36) that cooperates with the installation cavity (31). A pressure component (37) is provided between the connecting cavity (36) and the installation cavity (31). The pressure application component (37) includes an adjustment plate (371), which is disposed on the inner wall of the connecting cavity (36). A positioning bead (372) is fixedly connected to the outer side of the adjustment plate (371). A connecting rod (373) is fixedly connected to the bottom end of the positioning bead (372). A connecting plate (374) is fixedly connected to the bottom end of the connecting rod (373). A return spring (375) is elastically connected to the bottom end of the connecting plate (374). A first guide groove (376) matching the positioning bead (372) is opened on the inner side of the connecting cavity (36). A second guide groove (377) matching the positioning bead (372) is opened on the top of the inner side of the mounting cavity (31). The first guide groove (376) and the second guide groove (377) are connected.

2. The automotive fastener bolt according to claim 1, characterized in that: The second guide groove (377) is located below the first guide groove (376). The surface of the positioning bead (372) slides in cooperation with the inner side of the first guide groove (376) and the inner side of the second guide groove (377). The first guide groove (376) is arc-shaped and the first guide groove (376) is vertical strip-shaped.

3. The automotive fastener bolt according to claim 1, characterized in that: The top of the first guide groove (376) corresponds to the position of the steering indicator (4), and the bottom of the first guide groove (376) corresponds to the position of the positioning mark (5).

4. The automotive fastener bolt according to claim 1, characterized in that: The connecting cavity (36) and the mounting cavity (31) are vertically connected. The outer side of the adjusting plate (371) is slidably connected to the inner side of the connecting cavity (36) and the inner side of the mounting cavity (31). The adjusting plate (371) and the connecting plate (374) have the same shape. The interior of the adjusting plate (371), the interior of the connecting rod (373) and the interior of the connecting plate (374) are all provided with a first replenishing hole (378). The two sides of the middle part of the adjusting plate (371) are provided with insertion holes (379) that communicate with the first replenishing hole (378).

5. The automotive fastener bolt according to claim 1, characterized in that: The top of the external hexagonal nut (1) is provided with a protective groove (6) that is vertically connected to the connecting cavity (36). A protective cover (7) is fitted inside the protective groove (6). The protective cover (7) is located above the adjusting plate (371).

6. The automotive fastener bolt according to claim 1, characterized in that: The pressure plate (35) is located above the sponge layer (32). A second liquid replenishment hole (350) is provided in the middle of the pressure plate (35). The bottom end of the second liquid replenishment hole (350) corresponds to the top of the sponge layer (32). The top end of the pressure plate (35) and the bottom end of the reset spring (375) are in sliding fit.

7. The automotive fastener bolt according to claim 1, characterized in that: A plurality of first drain holes (33) are provided. The first drain holes (33) are located on the outside of the sponge layer (32). The plurality of first drain holes (33) are equidistantly arranged in the threaded groove at the bottom of the screw (2). The first drain holes (33) are interconnected with the mounting cavity (31). A plurality of second drain holes (34) are equidistantly arranged. The plurality of second drain holes (34) are arranged in a circular pattern. The second drain holes (34) are located at the bottom end of the sponge layer (32). The mounting cavity (31) is vertically connected with the second drain holes (34).

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