Bolt, front axle mounting structure and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses a bolt, a front axle mounting structure and a vehicle. The bolt comprises a screw rod and a dustproof assembly. Wherein the screw rod is configured to be arranged in the through hole of the mounting base body in a penetrating mode, a nut is screwed on the screw rod, and the nut abuts against the mounting base body. The dustproof assembly comprises a first dustproof part and a second dustproof part, the first dustproof part and the second dustproof part are arranged on the screw in a sleeving mode, the first dustproof part blocks the first end of the through hole, and the second dustproof part blocks the second end of the through hole, so that liquid or dust is prevented from entering the through hole, and then hardening at the connecting position of the screw is effectively avoided; and the operation difficulty of maintainers is reduced. In addition, anti-skid parts are arranged on the peripheral walls of the first dustproof part and the second dustproof part and abut against the side wall of the through hole, the friction force between the dustproof parts and the through hole is increased, the dustproof parts are prevented from being separated from the through hole under the action of external force, the sealing effect of the bolt connecting position is ensured, and dust prevention and corrosion prevention are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a bolt, a front axle mounting structure and a vehicle. Background Art

[0002] The connections between various parts of a car are generally completed by bolts. During the driving process of the car, the exposed bolts and bolt joints are easily splashed with mud and rain. On the one hand, it is easy to cause rust on the bolts and their joints; on the other hand, after the mud is hardened, it will increase the difficulty of bolt disassembly and maintenance, and reduce the work efficiency of maintenance personnel.

[0003] Therefore, there is an urgent need for a bolt that is both dustproof and corrosion-resistant to solve the existing problems. Utility Model Content

[0004] The utility model aims to provide a bolt, a front axle mounting structure and a vehicle, wherein the bolt can prevent mud and rainwater from entering the bolt connection position, and can also prevent the bolt and its connection from rusting, thereby reducing the difficulty of maintenance personnel's work.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, a bolt is provided, comprising:

[0007] A screw rod is configured to penetrate into a through hole of the mounting base, a nut is screwed onto the screw rod, and the nut is tightly pressed against the mounting base;

[0008] The dustproof component includes a first dustproof part and a second dustproof part, wherein the first dustproof part and the second dustproof part are both sleeved on the screw rod, the first dustproof part is sealed at the first end of the through hole, and the second dustproof part is sealed at the second end of the through hole, and the outer peripheral walls of the first dustproof part and the second dustproof part are both provided with anti-slip parts, and the anti-slip parts are pressed against the side walls of the through hole.

[0009] As an optional solution for the bolt, the first dustproof member, the second dustproof member and the side wall of the through hole define an oil containing cavity, and the oil containing cavity is filled with anti-rust oil.

[0010] As an optional solution for the bolt, an oil injection channel is provided on the first dustproof member and / or the second dustproof member, and the oil injection channel is communicated with the oil containing cavity.

[0011] As an optional solution for the bolt, the dustproof component further includes an elastic member, the elastic member is sleeved on the screw rod, and two ends of the elastic member are respectively connected to the first dustproof member and the second dustproof member.

[0012] As an optional solution to the bolt, a fixing piece is provided on one side of the first dustproof piece and the second dustproof piece facing the elastic piece, and the elastic piece is connected to the fixing piece.

[0013] As an optional solution for the bolt, a stopper is protruding from the side wall of the first end of the through hole, and a limiting portion is provided on the first dustproof member, and the limiting portion is tightly pressed against the stopper.

[0014] As an optional solution for the bolt, the dustproof assembly further includes a third dustproof piece, which is sleeved on the screw rod and overlapped on a side of the nut away from the mounting base.

[0015] As an alternative to the bolt, the outer side of the screw rod is coated with an anti-corrosion layer.

[0016] In a second aspect, a front axle mounting structure is provided, comprising a front axle, a leaf spring and the above-mentioned bolts;

[0017] The front axle is provided with a plurality of through holes, the bolt is a U-shaped bolt, the U-shaped bolt is provided with two screw rods, the two screw rods are correspondingly passed through two adjacent through holes, the leaf spring is stacked on the front axle and is located between the two screw rods.

[0018] In a third aspect, a vehicle is provided, comprising the above-mentioned front axle mounting structure.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a bolt, including a screw rod and a dustproof assembly. The screw rod is configured to be inserted into a through hole of a mounting base, a nut is screwed on the screw rod, and the nut is pressed against the mounting base. The dustproof assembly includes a first dustproof member and a second dustproof member, both of which are sleeved on the screw rod, the first dustproof member is sealed at the first end of the through hole, and the second dustproof member is sealed at the second end of the through hole to prevent liquid or dust from entering the through hole, thereby effectively avoiding the occurrence of hardening and rust at the connection of the screw rod, and reducing the difficulty of maintenance personnel. In addition, an anti-skid portion is provided on the outer peripheral wall of the first dustproof member and the second dustproof member, and the anti-skid portion is pressed against the side wall of the through hole, thereby increasing the friction between the dustproof member and the through hole, preventing it from falling out of the through hole under the action of external force, and ensuring the sealing effect of the bolt connection, dust prevention and corrosion prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of a bolt provided in a specific embodiment of the utility model;

[0022] Figure 2 It is a top view of a bolt provided in a specific embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the bolt provided by the specific implementation mode of the utility model cooperating with the through hole when in use;

[0024] Figure 4 It is a partial structural schematic diagram of the front axle mounting structure provided by a specific implementation method of the utility model.

[0025] In the figure:

[0026] 100, mounting base; 200, through hole; 201, stopper; 300, nut; 400, front axle;

[0027] 1. Screw;

[0028] 2. Dustproof component; 20. Oil chamber;

[0029] 21. First dust-proof part; 210. Position-limiting part; 22. Second dust-proof part; 23. Elastic part; 24. Third dust-proof part. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0035] like Figures 1 to 3 As shown, this embodiment provides a bolt, including a screw rod 1 and a dustproof assembly 2. The screw rod 1 is configured to be inserted into a through hole 200 of a mounting base 100, a nut 300 is screwed on the screw rod 1, and the nut 300 is tightly pressed against the mounting base 100. The dustproof assembly 2 includes a first dustproof member 21 and a second dustproof member 22, both of which are sleeved on the screw rod 1, the first dustproof member 21 is blocked at the first end of the through hole 200, and the second dustproof member 22 is blocked at the second end of the through hole 200 to prevent liquid or dust from entering the through hole 200, thereby effectively avoiding the occurrence of hardening at the connection of the screw rod 1 and reducing the difficulty of maintenance personnel. In addition, anti-slip parts are provided on the outer peripheral walls of the first dustproof part 21 and the second dustproof part 22, and the anti-slip parts are pressed against the side walls of the through hole 200 to increase the friction between the dustproof parts and the through hole 200, preventing them from falling out of the through hole 200 under the action of external force. At the same time, the sealing performance of the through hole 200 can be further improved.

[0036] Exemplarily, the anti-slip portion is an anti-slip protrusion arranged on the outer peripheral wall of the first dustproof piece 21 and the second dustproof piece 22. The anti-slip protrusion can be a dot-shaped protrusion or a patterned protrusion of any shape. Its function is to increase the contact friction between the dustproof piece and the through hole 200, prevent it from slipping out of the through hole 200, increase the stability of the dustproof piece, prevent mud and rainwater from entering the bolted connection, and play a role in dust and corrosion prevention.

[0037] Specifically, in this embodiment, Figure 3 As shown, the outer end surface of the first dustproof member 21 is flush with the upper end surface of the mounting base 100, and the outer end surface of the second dustproof member 22 is flush with the lower end surface of the mounting base 100, that is, the first dustproof member 21 and the second dustproof member 22 are both embedded in the through hole 200. In other embodiments, the outer end surface of the first dustproof member 21 or the second dustproof member 22 may also be higher than the end surface of the mounting base 100. In addition, the first dustproof member 21 and the second dustproof member 22 are both made of elastic material, such as elastic rubber.

[0038] Optionally, refer to Figure 3The first dustproof member 21, the second dustproof member 22 and the side wall of the through hole 200 are surrounded by an oil chamber 20, and anti-rust oil is filled in the oil chamber 20. The above arrangement can effectively prevent the screw rod 1 and the inner wall of the through hole 200 from rusting, thereby increasing the service life of the bolt.

[0039] Exemplarily, the anti-rust oil is an oil with an anti-rust function, which is composed of an oil-soluble corrosion inhibitor, a base oil, and auxiliary additives.

[0040] Furthermore, an oil injection channel is provided on the first dustproof part 21 and / or the second dustproof part 22, and the oil containing cavity 20 is connected with the external environment through the oil injection channel, so that the injection of anti-rust oil is simpler and more convenient. Moreover, during the use of the bolt, the anti-rust oil can be injected at any time to reduce the probability of bolt corrosion.

[0041] Optionally, refer to Figure 2 The dustproof assembly 2 further includes an elastic member 23, which is sleeved on the screw rod 1, and the two ends of the elastic member 23 are respectively connected to the first dustproof member 21 and the second dustproof member 22. The above arrangement can further improve the stability of the fixing of the first dustproof member 21 and the second dustproof member 22, and prevent them from slipping out of the through hole 200.

[0042] For example, in this embodiment, the elastic member 23 is a spring commonly used in the art. In other embodiments, the elastic member 23 may also be elastic rubber.

[0043] Furthermore, a fixing piece is provided on one side of the first dustproof member 21 and the second dustproof member 22 facing the elastic member 23, and the elastic member 23 is connected to the fixing piece. The setting of the fixing piece can prevent the elastic member 23 from sinking into the first fixing piece or the second fixing piece, thereby ensuring the stability of the installation of the first dustproof member 21 and the second dustproof member 22.

[0044] Exemplarily, the fixing member is made of a material having a certain hardness, such as a steel plate commonly used in the art. As long as it has a certain hardness, no specific limitation is made here.

[0045] Furthermore, refer to Figure 3 A stopper 201 is protruded on the side wall of the first end of the through hole 200, and a limiting portion 210 is provided on the first dustproof member 21. The limiting portion 210 is pressed against the stopper 201 to further prevent the first dustproof member 21 from falling off from the through hole 200, thereby enhancing the stability of the setting of the first dustproof member 21.

[0046] Optionally, continue to refer to Figure 3 The dustproof assembly 2 further includes a third dustproof member 24, which is sleeved on the screw rod 1 and overlapped on the side of the nut 300 away from the mounting base 100. The above arrangement is to prevent muddy water from entering the gap between the nut 300 and the screw rod 1, and prevent rust from occurring between the nut 300 and the screw rod 1.

[0047] For example, in this embodiment, the third dustproof member 24 is annular, and its outer diameter is larger than the diameter of the nut 300, so as to completely shield the nut 300, thereby achieving dustproofing at the connection between the nut 300 and the screw 1. In addition, in this embodiment, the third dustproof member 24 is also made of elastic rubber.

[0048] Optionally, the outer side of the screw 1 is coated with an anti-corrosion layer.

[0049] Exemplarily, the anti-corrosion layer is made by coating with anti-corrosion coatings such as epoxy anti-corrosion coatings or polyurethane anti-corrosion coatings.

[0050] This embodiment also provides a front axle mounting structure, such as Figure 4 As shown, the front axle mounting structure includes a front axle 400, a leaf spring (not shown) and the above-mentioned bolts. Among them, a plurality of through holes 200 are provided on the front axle 400, and the bolt is a U-shaped bolt, and the U-shaped bolt is provided with two screw rods 1, and the two screw rods 1 are correspondingly inserted into two adjacent through holes 200, and the leaf spring is stacked on the front axle 400 and located between the two screw rods 1 to achieve the connection between the leaf spring and the front axle 400. During driving, since the bolt is provided with a dustproof component 2, it can effectively prevent mud, sand and rain from splashing into the through hole 200 connecting the bolt and the front axle 400, thereby playing a role in dust and hardening prevention, and can reduce the difficulty of maintenance personnel's work, which is conducive to improving maintenance efficiency.

[0051] This embodiment also provides a vehicle, including the above-mentioned front axle mounting structure, which has all the beneficial effects of the above-mentioned front axle mounting structure and will not be repeated here.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A bolt, characterized in that: include: A screw rod (1) is configured to penetrate into a through hole (200) of a mounting base (100), a nut (300) is screwed onto the screw rod (1), and the nut (300) is tightly pressed against the mounting base (100); The dustproof component (2) includes a first dustproof part (21) and a second dustproof part (22), wherein the first dustproof part (21) and the second dustproof part (22) are both sleeved on the screw (1), the first dustproof part (21) is sealed at the first end of the through hole (200), and the second dustproof part (22) is sealed at the second end of the through hole (200), and the outer peripheral walls of the first dustproof part (21) and the second dustproof part (22) are both provided with anti-slip parts, and the anti-slip parts are pressed against the side walls of the through hole (200).

2. The bolt according to claim 1, characterized in that The first dustproof part (21), the second dustproof part (22) and the side wall of the through hole (200) form an oil containing cavity (20), and the oil containing cavity (20) is filled with rust-proof oil.

3. The bolt according to claim 2, characterized in that The first dustproof part (21) and / or the second dustproof part (22) are provided with an oil injection channel, and the oil injection channel is communicated with the oil containing cavity (20).

4. The bolt according to claim 1, wherein: The dustproof component (2) further comprises an elastic member (23), wherein the elastic member (23) is sleeved on the screw rod (1), and the two ends of the elastic member (23) are respectively connected to the first dustproof member (21) and the second dustproof member (22).

5. The bolt according to claim 4, characterized in that A fixing piece is provided on one side of the first dustproof piece (21) and the second dustproof piece (22) facing the elastic piece (23), and the elastic piece (23) is connected to the fixing piece.

6. The bolt according to claim 5, characterized in that A stopper (201) is protruding from the side wall of the first end of the through hole (200), and a limiting portion (210) is provided on the first dustproof part (21), and the limiting portion (210) is tightly pressed against the stopper (201).

7. The bolt according to any one of claims 1 to 6, characterized in that: The dustproof assembly (2) further includes a third dustproof part (24), which is sleeved on the screw rod (1) and stacked on a side of the nut (300) away from the mounting base (100).

8. The bolt according to any one of claims 1 to 6, characterized in that: The outer side of the screw (1) is coated with an anti-corrosion layer.

9. A front axle mounting structure, characterized in that: It comprises a front axle (400), a leaf spring and the bolt according to any one of claims 1 to 8; The front axle (400) is provided with a plurality of through holes (200), the bolt is a U-shaped bolt, the U-shaped bolt is provided with two screw rods (1), the two screw rods (1) are correspondingly passed through two adjacent through holes (200), and the leaf spring is stacked on the front axle (400) and located between the two screw rods (1).

10. A vehicle, characterized in that: Including the front axle mounting structure according to claim 9.

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