Wheel bolt with nut retention

Abstract

The utility model provides a kind of wheel bolt of preventing nut from falling off belongs to fastener technical field.It solves the problem that existing wheel bolt cannot prevent nut from falling off.The wheel bolt of preventing nut from falling off includes bolt end part, the bottom of bolt end part is connected with bolt connecting part, the bottom of bolt connecting part is connected with bolt rod body, the bottom of bolt rod body outside is threadedly sleeved with locating nut, the bottom of bolt rod body is provided with mounting hole, the inside of mounting hole is movably connected with restraint component by bearing, restraint component includes mounting rod, the outer portion of mounting rod is movably connected with the inner wall of mounting hole by bearing, the bottom of mounting rod is connected with mounting block, plug-in slot is passed through and arranged on mounting block, plug-in slot inner wall is passed through and is provided with plugboard.The utility model can effectively prevent nut from falling off, and service life is long.

Description

Technical Field

[0001] This utility model belongs to the field of fastener technology, and relates to a wheel bolt, and more particularly to a wheel bolt that prevents the nut from falling off. Background Technology

[0002] Wheel bolts are the core components that connect the wheels to the wheel hub unit bearings of a vehicle. They bear the weight transmission and torque load of the entire vehicle. Their structure is divided into two types: single-ended bolts and double-ended bolts. The former is widely used in small passenger cars, while the latter is suitable for medium and small trucks.

[0003] For example, Chinese patent literature discloses a wheel bolt [Application No.: 202122137735.7; Authorization Announcement No.: CN215634260U], which includes a wheel bolt body. A smooth area is provided on the outer surface of the wheel bolt body near the middle position. A threaded area is provided on the outer surface of the wheel bolt body below the smooth area. A fixing nut is fixedly installed at the top of the wheel bolt body, and a protective cover is movably installed on the upper outer surface of the fixing nut. A movable nut is sleeved on the outer surface of the wheel bolt body, and an anti-slip mechanism is provided at the upper end of the movable nut. A fixing countersunk hole is provided on the upper outer surface of the fixing nut, and a frustum cylinder is fixedly installed inside the fixing countersunk hole. A threaded groove is provided inside the frustum cylinder. A threaded area is also provided on the outer surface of the wheel bolt body above the smooth area. The diameter of the wheel bolt body is smaller than the diameter of the fixing nut.

[0004] The aforementioned wheel bolts are easy to replace and have good locking force, but they cannot position the nuts after installation. During subsequent vehicle operation, due to external bumps, the nuts are prone to loosening on the wheel bolts, or even falling off, affecting driving safety. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the prior art by providing a wheel bolt that prevents the nut from falling off.

[0006] The objective of this utility model can be achieved through the following technical solution: a wheel bolt for preventing nut from falling off, comprising a bolt end, a bolt connecting part connected to the bottom of the bolt end, a bolt shank connected to the bottom of the bolt connecting part, a positioning nut threaded onto the bottom of the bolt shank, an installation hole formed at the bottom of the bolt shank, a restraining component movably connected to the inside of the installation hole via a bearing, the restraining component comprising an installation rod, the outside of the installation rod being movably connected to the inner wall of the installation hole via a bearing, an installation block connected to the bottom of the installation rod, a slot being formed through the installation block, and an insert plate being provided through the inner wall of the slot.

[0007] This wheel bolt design prevents the nut from falling off. It uses a positioning groove, a restraining component, a positioning screw hole, and a mounting hole to position the nut. After the wheel bolt is installed, the washer and positioning nut are fitted onto the outside of the bolt shank. After the washer and positioning nut are installed, the insert plate is inserted into the slot. Then, the left and right sides of the insert plate are folded and inserted into the positioning groove. An external bolt passes through the insertion hole and is threaded into the positioning screw hole, thus positioning the insert plate. At this point, the washer and positioning nut will not fall off the bolt shank.

[0008] In the aforementioned wheel bolt designed to prevent nut from falling off, a cut surface is provided on the front side of the bolt connection, and a washer is connected to the top of the positioning nut, with the washer fitted over the bolt shank. The use of the washer increases the contact area of ​​the positioning nut, disperses pressure, reduces the pressure exerted by the positioning nut on the workpiece, and prevents surface crushing or deformation.

[0009] In the aforementioned wheel bolt designed to prevent the nut from falling off, the bottom of both sides of the positioning nut is provided with positioning grooves that cooperate with the insert plate. Positioning screw holes are provided on opposite sides of the inner walls of the two positioning grooves. The insert plate can be bent, and the left and right sides of the folded insert plate can be stored through the positioning grooves.

[0010] In the aforementioned wheel bolt designed to prevent nut detachment, the top left and right sides of the insert plate are perforated with insertion holes that mate with positioning screw holes. The engagement of the positioning screw holes and insertion holes allows for easy positioning and installation of the insert plate within the positioning groove using external bolts, thus improving the stability of the insert plate.

[0011] In the aforementioned wheel bolt designed to prevent nut detachment, the bolt end, bolt connection, bolt shank, positioning nut, mounting block, and insert plate are all coated with a zinc-aluminum layer. This zinc-aluminum coating utilizes a dual mechanism of sacrificial anode protection and a dense alumina layer to protect each component, effectively resisting salt spray and chemical corrosion even in harsh environments such as marine climates and industrial atmospheres.

[0012] Compared with existing technologies, this wheel bolt anti-nut-loosening device uses a combination of positioning groove, restraining component, positioning screw hole, and mounting hole to position the nut. After the wheel bolt is installed, the washer and positioning nut are fitted onto the outside of the bolt shank. After the washer and positioning nut are installed, the insert plate is inserted into the slot. Then, the left and right sides of the insert plate are folded and inserted into the positioning groove. The external bolt passes through the insertion hole and is threaded into the positioning screw hole to complete the positioning of the insert plate. At this time, the washer and positioning nut will not fall off the bolt shank, resulting in a long service life and improved driving safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a bottom view of the bolt rod of this utility model.

[0015] Figure 3 This is an exploded view of the restraint component structure of this utility model.

[0016] In the diagram: 1. Bolt end; 2. Cross-section; 3. Bolt shank; 4. Washer; 5. Locating nut; 6. Locating groove; 7. Restraining component; 71. Mounting rod; 72. Slot; 73. Mounting block; 74. Insertion hole; 75. Insert plate; 8. Locating screw hole; 9. Bolt connection; 10. Mounting hole. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, this wheel bolt for preventing nut detachment includes a bolt end 1, a bolt connection portion 9 connected to the bottom of the bolt end 1, a bolt shank 3 connected to the bottom of the bolt connection portion 9, a positioning nut 5 threaded onto the bottom of the bolt shank 3, a mounting hole 10 formed at the bottom of the bolt shank 3, a restraining component 7 movably connected to the inside of the mounting hole 10 via a bearing, the restraining component 7 including a mounting rod 71, the outside of the mounting rod 71 movably connected to the inner wall of the mounting hole 10 via a bearing, a mounting block 73 connected to the bottom of the mounting rod 71, a slot 72 extending through the mounting block 73, and an insert plate 75 extending through the inner wall of the slot 72. To elaborate further, a cut surface 2 is provided on the front side of the bolt connection part 9, and a washer 4 is connected to the top of the positioning nut 5. The washer 4 is fitted onto the outside of the bolt shank 3.

[0019] The bottom of both sides of the positioning nut 5 is provided with positioning grooves 6 that mate with the insert plate 75. Positioning screw holes 8 are provided on opposite sides of the inner wall of the two positioning grooves 6. Insertion holes 74 that mate with the positioning screw holes 8 are provided through the left and right sides of the top of the insert plate 75.

[0020] In actual manufacturing, the bolt end 1, bolt connection 9, bolt shank 3, locating nut 5, mounting block 73, and insert plate 75 are all coated with a zinc-aluminum layer, and the thickness of the zinc-aluminum coating is ≥8μm; the outer surface of the washer 4 is also coated with a zinc-aluminum layer. In use, after the wheel bolts are installed, the washer 4 and the positioning nut 5 are fitted onto the outside of the bolt shank 3. After the installation of the washer 4 and the positioning nut 5 is completed, the insert plate 75 is inserted into the slot 72. Then, the left and right sides of the insert plate 75 are folded and inserted into the positioning groove 6. The external bolts pass through the insertion hole 74 and are threadedly connected to the positioning screw hole 8 to complete the positioning of the insert plate 75. At this time, the washer 4 and the positioning nut 5 will not fall off the bolt shank 3.

[0021] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A wheel bolt for preventing nut from falling off, comprising a bolt end (1), characterized in that: The bottom of the bolt end (1) is connected to a bolt connection part (9), the bottom of the bolt connection part (9) is connected to a bolt shank (3), the bottom of the bolt shank (3) is threaded with a positioning nut (5), the bottom of the bolt shank (3) is provided with an installation hole (10), the inside of the installation hole (10) is movably connected to a restraining component (7) through a bearing, the restraining component (7) includes an installation rod (71), the outside of the installation rod (71) is movably connected to the inner wall of the installation hole (10) through a bearing, the bottom of the installation rod (71) is connected to an installation block (73), the installation block (73) is provided with a slot (72), and the inner wall of the slot (72) is provided with a insert plate (75).

2. A wheel bolt for preventing nut from falling off according to claim 1, characterized in that: The bolt connection part (9) has a cut surface (2) on the front side outside, and the top of the positioning nut (5) is connected to a washer (4), which is sleeved on the outside of the bolt shank (3).

3. A wheel bolt for preventing nut from falling off according to claim 1, characterized in that: The bottom of the left and right sides of the positioning nut (5) is provided with positioning grooves (6) that cooperate with the insert plate (75), and positioning screw holes (8) are provided on the opposite side of the inner wall of the two positioning grooves (6).

4. A wheel bolt for preventing nut from falling off according to claim 3, characterized in that: The top left and right sides of the insert plate (75) are provided with insertion holes (74) that are used to cooperate with the positioning screw holes (8).

5. A wheel bolt for preventing nut from falling off according to claim 1, characterized in that: The bolt end (1), bolt connection part (9), bolt shank (3), positioning nut (5), mounting block (73) and insert plate (75) are all plated with zinc-aluminum coating.

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