Rotation stopping type wheel bolt for wheel hub of heavy-duty car

Abstract

The utility model relates to the technical field of wheel bolts, and discloses a rotation stopping type wheel bolt for a wheel hub of a heavy-duty car, which comprises a bolt body, the bolt body comprises a nut, a sealing plate is mounted on the upper surface of the nut, a connecting pin is rotatably connected between the sealing plate and the nut, and a knurling section is fixedly mounted on the lower surface of the nut. A stud is fixedly installed at the lower end of the knurling section, and the outer surface of the stud is in threaded connection with a fastening structure. By means of the secondary clamping structure installed in the fastening structure, connection between the bolt body and the fastening structure is firmer, the rotation stopping effect of the wheel bolt is effectively improved, damage of the wheel bolt to a hub is reduced, maintenance cost is saved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel bolts, in particular to a non-rotating wheel bolt for a heavy-duty vehicle wheel hub. Background Technique

[0002] At present, for the wheel bolts of the axle hubs of heavy-duty vehicles, the structure of the rod body between the head and the threaded section of the bolt is mostly processed into a smooth rod. During installation, the wheel bolt is pressed into the bolt hole on the wheel hub to form an interference fit. The head of the wheel bolt is made circular and the milling plane is used to cooperate with the stop on the hub to prevent rotation. However, the anti-rotation effect of this structure of wheel bolt is not good. After the nut is tightened, the wheel bolt will rotate, and even after the wheel bolt rotates, the flat stop on the hub will be severely worn and deformed, resulting in the failure of the connection.

[0003] The utility model patent application document with the publication number of "CN201843883U" discloses a non-rotating wheel bolt for a heavy-duty vehicle wheel hub, which mainly consists of a head section, a knurled section, a cylindrical section and an external threaded section. This technical solution has the advantage of composite anti-rotation, and solves the problem that for the existing wheel bolts of the axle hubs of heavy-duty vehicles, the structure of the rod body between the head and the threaded section of the bolt is mostly processed into a smooth rod. During installation, the wheel bolt is pressed into the bolt hole on the wheel hub to form an interference fit. The head of the wheel bolt is made circular and the milling plane is used to cooperate with the stop on the hub to prevent rotation. However, the anti-rotation effect of this structure of wheel bolt is not good. After the nut is tightened, the wheel bolt will rotate, and even after the wheel bolt rotates, the flat stop on the hub will be severely worn and deformed.

[0004] The non-rotating wheel bolt disclosed in the above document has the following defects: after the non-rotating wheel bolt is used for a period of time, the thread between the bolt and the nut is worn, resulting in the bolt falling off. Therefore, the process of replacing the bolt is more troublesome.

[0005] It can be seen from this that the existing non-rotating wheel bolts do not have a structure for secondary tightening, and it is necessary to improve the existing deficiencies to provide a non-rotating wheel bolt for a heavy-duty vehicle wheel hub. Content of the Utility Model

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model provides a non-rotating wheel bolt for a heavy-duty vehicle wheel hub, including a bolt body. The bolt body includes a nut, and a sealing plate is installed on the upper surface of the nut. A connecting pin is rotatably connected between the sealing plate and the nut. A knurled section is fixedly installed on the lower surface of the nut. A stud is fixedly installed at the lower end of the knurled section. A fastening structure is threadedly connected to the outer surface of the stud.

[0008] Further, the fastening structure includes a nut. An installation groove is formed on one side surface of the nut. A support plate is fixedly installed on the upper surface of the installation groove. An installation plate is fixedly installed on the upper surface of the support plate. A lead screw is installed on the upper surface of one side of the installation plate. A cross bar is installed at the upper end of the lead screw. The lower end of the lead screw penetrates through the upper surface of the installation plate until it is fixedly connected to the upper surface of a connection plate. An fixing plate is rotatably connected to the outer surface of the connection plate. A clamping block is installed on the lower surface of the fixing plate. The lower surface of the clamping block abuts against the outer surface of a stud.

[0009] Further, a thread corresponding to the thread on the surface of the stud is formed on the lower surface of the clamping block.

[0010] Further, an inclined guide surface is formed at the lower end of the stud.

[0011] Further, a hexagonal groove is formed on the upper surface of the nut.

[0012] Further, a waterproof layer is coated on the surface of the bolt body.

[0013] The utility model has the following beneficial effects:

[0014] (1) Through the secondary clamping structure installed inside the nut body of the utility model, the connection between the bolt body and the fastening structure is made more firm, effectively improving the anti-rotation effect of the wheel bolt, reducing the damage of the wheel bolt to the hub, saving the maintenance cost and prolonging the service life.

[0015] (2) Through the installation of a sealing plate on the upper surface of the nut, external dust cannot enter the inside of the hexagonal groove, preventing the hexagonal groove from being blocked. By blocking the dust with the sealing plate, the service life of the fastening structure is greatly improved.

[0016] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

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

[0019] Figure 2 It is a schematic diagram of the bolt body structure of the present utility model;

[0020] Figure 3Schematic diagram of the fastening structure of the present utility model;

[0021] Figure 4 Cross-sectional view of the fastening structure of the present utility model;

[0022] In the accompanying drawings, the components represented by each reference numeral are listed as follows:

[0023] In the figure: 1. Bolt body; 101. Nut; 102. Sealing plate; 103. Connecting pin; 104. Knurled section; 105. Stud; 2. Fastening structure; 201. Nut; 202. Support plate; 203. Mounting plate; 204. Lead screw; 205. Cross bar; 206. Connecting plate; 207. Fixed plate; 208. Block. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 - 4 As shown, the present utility model is a non-rotating wheel bolt for a heavy-duty vehicle wheel hub, including a bolt body 1. The bolt body 1 includes a nut 101. A sealing plate 102 is installed on the upper surface of the nut 101. A connecting pin 103 is rotatably connected between the sealing plate 102 and the nut 101. A knurled section 104 is fixedly installed on the lower surface of the nut 101. A stud 105 is fixedly installed at the lower end of the knurled section 104. A fastening structure 2 is threadedly connected to the outer surface of the stud 105.

[0026] The fastening structure 2 includes a nut 201. An installation groove is formed on one side surface of the nut 201. A support plate 202 is fixedly installed on the upper surface of the installation groove. A mounting plate 203 is fixedly installed on the upper surface of the support plate 202. A lead screw 204 is installed on one side upper surface of the mounting plate 203. The upper end of the lead screw 204 is installed with a cross bar 205. The lower end of the lead screw 204 penetrates through the upper surface of the mounting plate 203 until it is fixedly connected to the upper surface of a connecting plate 206. The outer surface of the connecting plate 206 is rotatably connected to a fixed plate 207. A block 208 is installed on the lower surface of the fixed plate 207. The lower surface of the block 208 abuts against the outer surface of the stud 105.

[0027] A thread corresponding to the thread on the surface of the stud 105 is formed on the lower surface of the block 208.

[0028] An inclined guide surface is formed at the lower end of the stud 105.

[0029] A hexagonal groove is formed on the upper surface of the nut 201 .

[0030] The surface of the bolt body 1 is coated with a waterproof layer.

[0031] When in use, first push the sealing plate 102 installed on the upper surface of the nut 101 to one end, then put the hexagonal wrench into the hexagonal groove, and then rotate the nut 101 to fix the bolt body 1 and the fastening structure 2. The sealing plate 102 is installed on the upper surface of the nut 101, so that external dust cannot enter the inside of the hexagonal groove, thereby preventing the hexagonal groove from being blocked. The sealing plate 102 blocks the clogging of dust and greatly improves the service life of the fastening structure 2. After the bolt body 1 is fixed to the fastening structure 2, the cross bar 205 installed on the upper end of the screw rod 204 is rotated, and then the block 208 is pushed downward by the screw rod 204 to move, so that the lower end of the block 208 is fitted with the outer surface of the stud 105, thereby achieving the effect of secondary fastening. The secondary clamping structure installed inside the fastening structure 2 makes the connection between the bolt body 1 and the fastening structure 2 more firm, effectively improving the anti-rotation effect of the wheel bolt body 1, reducing the damage of the wheel bolt body 1 to the wheel hub, saving maintenance costs, and extending the service life.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wheel bolt for a heavy-duty vehicle wheel hub, comprising a bolt body (1), characterized in that: The bolt body (1) comprises a nut (101), a sealing plate (102) is mounted on the upper surface of the nut (101), a connecting pin (103) is rotatably connected between the sealing plate (102) and the nut (101), a knurled section (104) is fixedly mounted on the lower surface of the nut (101), a stud (105) is fixedly mounted at the lower end of the knurled section (104), and the outer surface of the stud (105) is threadedly connected to a fastening structure (2).

2. The anti-rotation wheel bolt for a heavy-duty vehicle wheel hub according to claim 1, characterized in that: The fastening structure (2) comprises a nut (201), a mounting groove being provided on one side surface of the nut (201), a support plate (202) being fixedly mounted on the upper surface of the mounting groove, a mounting plate (203) being fixedly mounted on the upper surface of the support plate (202), a screw rod (204) being mounted on one side upper surface of the mounting plate (203), a cross bar (205) being mounted on the upper end of the screw rod (204), a lower end of the screw rod (204) penetrating the upper surface of the mounting plate (203) until being fixedly connected to the upper surface of a connecting plate (206), a fixing plate (207) being rotatably connected to the outer surface of the connecting plate (206), a clamping block (208) being mounted on the lower surface of the fixing plate (207), and the lower surface of the clamping block (208) being in contact with the outer surface of the stud (105).

3. The anti-rotation wheel bolt for a heavy-duty vehicle wheel hub according to claim 2, characterized in that: The lower surface of the clamping block (208) is provided with a thread corresponding to the thread on the surface of the stud (105).

4. The anti-rotation wheel bolt for a heavy-duty vehicle wheel hub according to claim 1, characterized in that: The lower end of the stud (105) is provided with an inclined guide surface.

5. The anti-rotation wheel bolt for a heavy-duty vehicle wheel hub according to claim 2, characterized in that: The upper surface of the nut (201) is provided with a hexagonal groove.

6. The anti-rotation wheel bolt for a heavy-duty vehicle wheel hub according to claim 1, characterized in that: The surface of the bolt body (1) is coated with a waterproof layer.

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