Automobile elastic bolt

Abstract

The utility model provides an automobile elastic bolt, which relates to the technical field of automobile accessories and comprises a screw main body, one end of the screw main body is fixedly connected with a bolt head, the screw main body and the bolt head are made of the same material, and threads are arranged on the outer surface of the screw main body. According to the utility model, the screw main body penetrates through the fixed seat and then is tightened at a corresponding position, after the bolt is tightened, the pull rod is pulled to drive the moving plate to move, the moving plate drives the sliding plate to slide in the sliding groove and simultaneously drives the limiting rod to move, so that the limiting rod moves into the moving groove, and meanwhile, the reset spring is extruded by the moving plate to shrink; and then an inserting plate at the bottom of the protective cover is inserted into an inserting groove, then a pull rod is loosened, under the elastic force effect of a reset spring, a movable plate drives a limiting rod to be squeezed into a limiting hole, then the protective cover is limited and fixed, the bolt head is conveniently protected, and the situation that the bolt head is rusted and corroded due to the fact that the bolt head is placed in the external environment for a long time is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, especially relates to a car elastic bolt. BACKGROUND

[0002] The automobile is composed of multiple spare parts, and some of the spare parts need to use bolt assemblies when being connected. The bolt is a cylindrical fastener with a nut and threads, which is composed of a head and a screw rod. The bolt needs to be matched with a nut and is used to fasten and connect two parts with through holes.

[0003] However, the existing automobile bolt does not have a protection structure at the upper end, and the bolt head cannot be protected, so that the bolt head is placed in the external environment for a long time, leading to rust and corrosion. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of automobile elastic bolts to solve the problems that the upper end of automobile bolt in prior art does not have protection structure, bolt head cannot be protected, so that bolt head is placed in external environment for a long time, leading to rust and corrosion.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of automobile elastic bolt, including screw rod main body, the one end of the screw rod main body is fixedly connected with bolt head, the material of the screw rod main body and bolt head is same, the outer surface of the screw rod main body is provided with thread, the outer surface of the screw rod main body is provided with reinforcing layer, the outer surface of the reinforcing layer is provided with rust prevention layer, the outer surface of the rust prevention layer is provided with high temperature resistant layer, the outer surface of the high temperature resistant layer is provided with wear layer, the outer surface of the screw rod main body is provided with fixed seat, the top of the fixed seat is provided with insertion slot, the top of the fixed seat is provided with protective cover, the bottom of the protective cover is fixedly connected with plugboard, the side of the plugboard is provided with limit hole, the inside of the fixed seat is provided with movable slot, the movable slot is provided with moving plate, the inside of the movable slot is provided with sliding slot, the sliding slot is slidably connected with sliding plate, the sliding plate is fixedly connected with moving plate, the side of the moving plate is fixedly connected with limit rod, the other side of the moving plate is fixedly connected with pull rod, the outer surface of the pull rod is provided with reset spring, the one end of the limit rod is movably penetrated in movable slot and fixed seat and extends to limit hole.

[0006] Preferably, the reinforcing layer includes a manganese alloy layer, which is disposed on the outer surface of the screw rod main body.

[0007] Preferably, the manganese alloy layer is provided with a titanium alloy layer on the side away from the screw rod main body, and the outer surface of the screw rod main body is adhesively connected with the inner cavity of the reinforcing layer.

[0008] Preferably, the rust-proof layer comprises a passivation layer, which is arranged on the outer surface of the reinforcing layer.

[0009] Preferably, the passivation layer is arranged with a nickel plating layer on the side away from the reinforcing layer, the outer surface of the reinforcing layer is adhesively connected with the inner cavity of the rust-proof layer, and the surface of the passivation layer is adhesively connected with the inner cavity of the nickel plating layer.

[0010] Preferably, the wear-resistant layer comprises a carbon steel layer, which is arranged on the side of the high-temperature-resistant layer away from the rust-proof layer, and the carbon steel layer is arranged with an iron alloy layer on the side away from the high-temperature-resistant layer.

[0011] Preferably, the iron alloy layer is arranged with a steel alloy layer on the side away from the carbon steel layer, the thickness of the high-temperature-resistant layer is the same as that of the wear-resistant layer, and the thickness of the wear-resistant layer is the same as that of the reinforcing layer.

[0012] Preferably, one end of the pull rod is movably penetrated into the movable groove and extends to the outside of the fixed seat, one end of the pull rod is fixedly connected with a pull plate, the bottom of the bolt head is provided with an elastic wedge block, and a inner hexagonal screw hole is formed in the middle of the top end of the bolt head.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1、in the utility model, the screw rod body is penetrated through the fixed seat, then is tightened at the corresponding position, after the bolt is tightened, the pull rod is pulled to drive the moving plate to move, the moving plate drives the sliding plate to slide in the sliding groove, simultaneously drives the limiting rod to move, the limiting rod moves to the movable groove, simultaneously the return spring is extruded by the moving plate and starts to contract, then the plug -in board at the bottom of the protective cover is inserted into the slot, then the pull rod is loosened, under the elastic force of the return spring, the moving plate drives the limiting rod to extrude into the limiting hole, thereby the protective cover is limited and fixed, the bolt head is conveniently protected, the rust of the bolt head caused by long -term placed in the external environment is avoided, the corrosion condition is avoided.

[0015] 2、in the utility model, the reinforcing layer, the manganese alloy layer and the titanium alloy layer are set up, the use intensity of the screw rod body and the bolt head is increased, the rust-proof layer, the passivation layer and the nickel plating layer are set up, the rust-proof and corrosion -resistant performance of the screw rod body and the bolt head is increased, the use intensity of the screw rod body and the bolt head is also increased, the wear-resistant layer, the carbon steel layer, the iron alloy layer and the steel alloy layer are set up, the compression resistance and the use intensity of the screw rod body and the bolt head are improved, the wear -resistant performance of the screw rod body and the bolt head is also increased, the high -temperature -resistant layer is set up, the high -temperature -resistant performance of the screw rod body and the bolt head is increased, the practicality of the screw rod body and the bolt head is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The utility model provides a kind of automobile elastic bolt's main structure perspective view;

[0017] Figure 2 The utility model provides a kind of automobile elastic bolt in protective cover's structure perspective view;

[0018] Figure 3 The utility model provides a kind of automobile elastic bolt in fixed seat's partial sectional structure perspective view;

[0019] Figure 4 The utility model provides a kind of automobile elastic bolt in bolt head's structure perspective view;

[0020] Figure 5 The utility model provides a kind of automobile elastic bolt in screw rod main part's partial sectional structure perspective view;

[0021] Figure 6 The utility model provides a kind of automobile elastic bolt in reinforcing layer's structure schematic view;

[0022] Figure 7 The utility model provides a kind of automobile elastic bolt in rust prevention layer's structure schematic view;

[0023] Figure 8 A kind of automobile elastic bolt in the utility model provides a kind of wear-resistant layer's structure schematic view.

[0024] Legend: 1, screw rod main part;2, bolt head;3, thread;4, reinforcing layer;401, manganese alloy layer;402, titanium alloy layer;5, rust prevention layer;501, passivation layer;502, nickel plating layer;6, wear-resistant layer;601, carbon steel layer;602, iron alloy layer;603, steel alloy layer;7, fixed seat;8, slot;9, protective cover;10, plugboard;11, limit hole;12, movable slot;13, moving plate;14, sliding slot;15, sliding plate;16, limit rod;17, pull rod;18, reset spring;19, pull plate;20, elastic wedge block;21, internal hexagonal screw hole;22, high-temperature-resistant layer. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the examples can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model can also be implemented in other ways different from those described herein, therefore, the present utility model is not limited to the specific embodiments disclosed in the following specification.

[0027] Embodiment 1: as Figure 1 Figure 8 The utility model provides a kind of automobile elastic bolt, including screw rod main body 1, the one end of screw rod main body 1 is fixedly connected with bolt head 2, the material of screw rod main body 1 and bolt head 2 is identical, the outer surface of screw rod main body 1 is provided with thread 3, the outer surface of screw rod main body 1 is provided with reinforcing layer 4, the outer surface of reinforcing layer 4 is provided with rust prevention layer 5, the outer surface of rust prevention layer 5 is provided with high temperature resistant layer 22, the outer surface of high temperature resistant layer 22 is provided with wear layer 6, the outer surface of screw rod main body 1 is equipped with fixed seat 7, the top of fixed seat 7 is provided with slot 8, the top of fixed seat 7 is provided with protective cover 9, the bottom of protective cover 9 is fixedly connected with plugboard 10, the side of plugboard 10 is provided with limit hole 11, the inside of fixed seat 7 is provided with movable slot 12, movable slot 12 is provided with moving plate 13, the inside of movable slot 12 is provided with sliding slot 14, sliding slot 14 is slidably connected with slide 15, slide 15 is fixedly connected with moving plate 13, the side of moving plate 13 is fixedly connected with limit rod 16, the other side of moving plate 13 is fixedly connected with pull rod 17, the outer surface of pull rod 17 is equipped with reset spring 18, one end of limit rod 16 is movably penetrated in movable slot 12 and fixed seat 7 and extends to limit hole 11.

[0028] Its whole embodiment 1 reaches the effect for, by screw rod main body 1 is passed through fixed seat 7, subsequently is tightened at corresponding position, after tightening bolt, pull rod 17 is pulled and moving plate 13 is moved, moving plate 13 is moved and slide 15 is slid in sliding slot 14, limit rod 16 is moved simultaneously, so that limit rod 16 moves to movable slot 12, while reset spring 18 is extruded by moving plate 13 and starts to contract, subsequently plugboard 10 in the bottom of protective cover 9 is inserted into slot 8, then release pull rod 17, under the elastic force of reset spring 18, moving plate 13 is moved and limit rod 16 is extruded into limit hole 11, to limit fixed protective cover 9, it is convenient to protect bolt head 2, avoid bolt head 2 long time to be placed in external environment and lead to rust, the case of being corroded.

[0029] Embodiment 2: as Figure 1 Figure 8 ​​As shown, the reinforcing layer 4 includes a manganese alloy layer 401 arranged on the outer surface of the screw body 1, the manganese alloy layer 401 is provided with a titanium alloy layer 402 away from one side of the screw body 1, the outer surface of the screw body 1 is adhesively connected with the inner cavity of the reinforcing layer 4, the anti-rust layer 5 includes a passivation layer 501 arranged on the outer surface of the reinforcing layer 4, the passivation layer 501 is provided with a nickel plating layer 502 away from one side of the reinforcing layer 4, the outer surface of the reinforcing layer 4 is adhesively connected with the inner cavity of the anti-rust layer 5, the surface of the passivation layer 501 is adhesively connected with the inner cavity of the nickel plating layer 502, the wear-resistant layer 6 includes a carbon steel layer 601 arranged away from one side of the anti-rust layer 5, the carbon steel layer 601 is provided with an iron alloy layer 602 away from one side of the carbon steel layer 601, the iron alloy layer 602 is provided with a steel alloy layer 603 away from one side of the carbon steel layer 601, the thickness of the high-temperature-resistant layer 22 is the same as the thickness of the wear-resistant layer 6, the thickness of the wear-resistant layer 6 is the same as the thickness of the reinforcing layer 4, one end of the pull rod 17 is movably penetrated into the movable groove 12 and extends to the outside of the fixed seat 7, one end of the pull rod 17 is fixedly connected with the pull plate 19, the bottom of the bolt head 2 is provided with an elastic wedge block 20, and a inner hexagonal screw hole 21 is formed in the middle of the top end of the bolt head 2.

[0030] The whole embodiment 2 achieves the effect of increasing the use strength of the screw body 1 and the bolt head 2 by arranging the reinforcing layer 4, avoiding the damage of the screw body 1 and the bolt head 2 during repeated use, prolonging the service life of the screw body 1 and the bolt head 2, increasing the rust prevention and corrosion resistance of the screw body 1 and the bolt head 2 by arranging the anti-rust layer 5, and also increasing the use strength of the screw body 1 and the bolt head 2, improving the compression resistance and use strength of the screw body 1 and the bolt head 2 by arranging the wear-resistant layer 6, and also increasing the wear resistance of the screw body 1 and the bolt head 2, further improving the service life of the screw body 1 and the bolt head 2, the thickness of the high-temperature-resistant layer 22 is the same as the thickness of the wear-resistant layer 6, the high-temperature-resistant layer 22 increases the high-temperature resistance of the screw body 1 and the bolt head 2, improves the practicability of the screw body 1 and the bolt head 2, the pull plate 19 is arranged, which is convenient for pulling the pull rod 17, the elastic wedge block 20 is elastically deformed when the bolt is tightened, so that the elastic wedge block 20 and the fixed seat 7 are in close contact, the fixed seat 7 and the supporting surface are in close contact, preventing the bolt from being displaced as a whole, and the inner hexagonal screw hole 21 is arranged, which is convenient for inserting the inner hexagonal wrench into the inner hexagonal screw hole 21 to rotate and tighten the screw body 1.

[0031] Working principle: in use, the screw body 1 is inserted through the fixed seat 7, then the corresponding position is tightened, after tightening the bolt, pull the pull plate 19 to drive the pull rod 17 to move, the pull rod 17 drives the moving plate 13 to move, the moving plate 13 drives the sliding plate 15 to slide in the sliding groove 14, and the limiting rod 16 is moved to the movable slot 12, and the reset spring 18 is extruded by the moving plate 13 and starts to contract, then the plug plate 10 at the bottom of the protective cover 9 is inserted into the slot 8, then the pull plate 19 is loosened, under the elastic force of the reset spring 18, the moving plate 13 drives the limiting rod 16 to extrude into the limiting hole 11, so as to limit and fix the protective cover 9, that is, the bolt head 2 can be protected, at the same time, the reinforcing layer 4, the manganese alloy layer 401 and the titanium alloy layer 402 are arranged, the use strength of the screw body 1 and the bolt head 2 is increased, the rust-proof layer 5, the passivation layer 501 and the nickel plating layer 502 are arranged, the rust-proof and corrosion-resistant performance of the screw body 1 and the bolt head 2 is increased, and the use strength of the screw body 1 and the bolt head 2 is also increased, the wear-resistant layer 6, the carbon steel layer 601, the iron alloy layer 602 and the steel alloy layer 603 are arranged, the compression resistance and use strength of the screw body 1 and the bolt head 2 are improved, and the wear-resistant performance of the screw body 1 and the bolt head 2 is also increased, the high-temperature-resistant layer 22 is arranged, the high-temperature-resistant performance of the screw body 1 and the bolt head 2 is increased, and the practicability of the screw body 1 and the bolt head 2 is improved.

[0032] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belongs to the protection scope of the present application.

Claims

1. A resilient automotive bolt comprising a shank body (1) characterised in that: One end of the screw body (1) is fixedly connected with a bolt head (2), the material of the screw body (1) and the bolt head (2) is the same, the outer surface of the screw body (1) is provided with a thread (3), the outer surface of the screw body (1) is provided with a reinforcing layer (4), the outer surface of the reinforcing layer (4) is provided with an anti-rust layer (5), the outer surface of the anti-rust layer (5) is provided with a high-temperature-resistant layer (22), the outer surface of the high-temperature-resistant layer (22) is provided with a wear-resistant layer (6), the outer surface of the screw body (1) is provided with a fixed seat (7), the top of the fixed seat (7) is provided with a slot (8), the top of the fixed seat (7) is provided with a protective cover (9), the bottom of the protective cover (9) is fixedly connected with a plug plate (10), one side of the plug plate (10) is provided with a limiting hole (11), the inside of the fixed seat (7) is provided with a movable slot (12), the movable slot (12) is provided with a moving plate (13), the inside of the movable slot (12) is provided with a sliding groove (14), the sliding groove (14) is slidably connected with a sliding plate (15), the sliding plate (15) is fixedly connected with the moving plate (13), one side of the moving plate (13) is fixedly connected with a limiting rod (16), the other side of the moving plate (13) is fixedly connected with a pull rod (17), the outer surface of the pull rod (17) is provided with a reset spring (18), one end of the limiting rod (16) is movably penetrated into the movable slot (12) and the fixed seat (7) and extends into the limiting hole (11).

2. The elastomeric automotive bolt of claim 1, wherein: The reinforcing layer (4) comprises a manganese alloy layer (401), which is arranged on the outer surface of the screw body (1).

3. The elastomeric automotive bolt of claim 2, wherein: The manganese alloy layer (401) is provided with a titanium alloy layer (402) away from one side of the screw body (1), and the outer surface of the screw body (1) is adhesively connected with the inner cavity of the reinforcing layer (4).

4. The elastomeric automotive bolt of claim 1, wherein: The anti-rust layer (5) comprises a passivation layer (501), which is arranged on the outer surface of the reinforcing layer (4).

5. The elastomeric automotive bolt of claim 4, wherein: The passivation layer (501) is provided with a nickel plating layer (502) away from one side of the reinforcing layer (4), the outer surface of the reinforcing layer (4) is adhesively connected with the inner cavity of the anti-rust layer (5), and the surface of the passivation layer (501) is adhesively connected with the inner cavity of the nickel plating layer (502).

6. The elastomeric automotive bolt of claim 1, wherein: The wear-resistant layer (6) comprises a carbon steel layer (601), which is arranged on the side away from the anti-rust layer (5) of the high-temperature-resistant layer (22), and the side away from the high-temperature-resistant layer (22) of the carbon steel layer (601) is provided with an iron alloy layer (602).

7. The elastomeric automotive bolt of claim 6, wherein: The iron alloy layer (602) is provided with a steel alloy layer (603) away from the carbon steel layer (601), the thickness of the high-temperature-resistant layer (22) is the same as the thickness of the wear-resistant layer (6), and the thickness of the wear-resistant layer (6) is the same as the thickness of the reinforcing layer (4).

8. The elastomeric automotive bolt of claim 1, wherein: One end of the pull rod (17) is movably penetrated through the movable slot (12) and extends to the outside of the fixed base (7), one end of the pull rod (17) is fixedly connected with a pull plate (19), the bottom of the bolt head (2) is provided with an elastic wedge block (20), and the top end of the bolt head (2) is provided with an internal hexagonal screw hole (21).

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