Protective shell structure of automobile steering device

Abstract

The utility model discloses a protective shell structure of an automobile steering gear, which is characterized in that the top of a protective shell is connected with a transmission shaft, a pull rod is arranged in the protective shell, two ends of the protective shell are connected with dust covers, one end of each dust cover is provided with a positioning plate, the positioning plate is fixedly connected with a convex block, and the convex block is connected with a threaded rod; one end of the threaded rod is connected with a rotating handle, the other end of the threaded rod is connected with a locking ring, the threaded rod is connected with an adjusting block, the adjusting block is connected with a positioning mechanism, the positioning mechanism is arranged on the pull rod, the other end of the dust cover is provided with a clamping plate, and the clamping plate is connected with a positioning bolt. And when the automobile steering device is protected, the automobile steering device can be protected through cooperation of the dustproof cover and the protective shell, mounting and dismounting are convenient, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive steering gears, and more specifically, to a protective housing structure for an automotive steering gear. Background Art

[0002] In an automotive steering control system, the function of a steering gear is to appropriately transform the steering torque and steering angle from the steering wheel (mainly decelerating and increasing torque), and then output them to the steering tie rod mechanism, so that the vehicle can be steered. Therefore, the steering gear is essentially a speed reduction transmission device. There are various types of steering gears, such as rack and pinion type, recirculating ball type, worm and crank pin type, power steering gear, etc.

[0003] In the prior art, when the existing protective housing of an automotive steering gear is in use, if its sealing effect is not good, and there are a large number of dust and impurities in its tooling environment, it is easy for dust and impurities to enter the protective housing and affect mechanisms such as tie rods, thus affecting the overall use effect and safety.

[0004] For the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0005] In view of the problems in the related art, the present utility model provides a protective housing structure for an automotive steering gear to overcome the above-mentioned technical problems existing in the prior related art.

[0006] Specifically, the technical solution adopted by the present utility model is as follows: A protective housing structure for an automotive steering gear includes a protective housing. A drive shaft is connected to the top of the protective housing. A tie rod is arranged inside the protective housing. Dust covers are connected to both ends of the protective housing. A positioning plate is arranged at one end of the dust cover. A convex block is fixedly connected to the positioning plate. A threaded rod is connected to the convex block. A rotating handle is fixedly connected to one end of the threaded rod. A locking ring is connected to the other end of the threaded rod. An adjusting block is connected to the threaded rod. A positioning mechanism is fixedly connected to the adjusting block. The positioning mechanism is arranged on the tie rod. A clamping plate is arranged at the other end of the dust cover. A positioning bolt is connected to the clamping plate. A pressing plate is connected to the positioning bolt. A sealing ring is arranged between the pressing plate and the protective housing.

[0007] As a further optimization, the dust cover covers the outside of the tie rod, and a through hole matching the tie rod is formed on the positioning plate.

[0008] As a further optimization, the locking ring is fixed to one end of the threaded rod, and the positioning mechanism is sleeved on the outside of the tie rod.

[0009] As a further optimization, the positioning mechanism includes a positioning frame, a connecting sleeve, and balls. The balls are evenly arranged on the connecting sleeve, and the connecting sleeve is in contact with the inner side of the positioning frame and the outer side of the pull rod through the balls respectively.

[0010] As a further optimization, an oil injection hole is provided on the positioning frame, and lubricating grooves are arranged at positions corresponding to the balls on the inner wall of the positioning frame.

[0011] As a further optimization, the clamping plates are symmetrically arranged on both sides of the protective housing, and arc-shaped grooves matching the shape of the protective housing are provided on the pressing plates.

[0012] As a further optimization, a limiting block is provided at one end of the protective housing, and the limiting block is arranged inside the dust-proof cover.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By providing clamping plates on the dust-proof cover, when protecting the vehicle steering gear, the vehicle steering gear can be protected through the cooperation of the dust-proof cover and the protective housing, and it is convenient for installation and disassembly, and the operation is convenient;

[0015] 2. By providing a positioning mechanism, when using this protective housing, according to different vehicle models with different sizes, the rotation of the turning handle drives the threaded rod to rotate, so that the adjusting block drives the positioning mechanism to move, and the position of the positioning mechanism on the pull rod is adjusted, which can enhance the torque of the pull rod and improve the service life of the pull rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. 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.

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

[0018] Figure 2 It is the structure schematic diagram of the protective housing of the present utility model;

[0019] Figure 3 It is the structure diagram of the dust-proof cover of the present utility model;

[0020] Figure 4 It is the connection structure schematic diagram of the threaded rod of the present utility model;

[0021] Figure 5 It is the structure schematic diagram of the positioning mechanism of the present utility model.

[0022] In the figure: 1, protective housing; 2, transmission shaft; 3, pull rod; 4, dust cover; 5, positioning plate; 6, convex block; 7, threaded rod; 8, rotating handle; 9, locking ring; 10, adjusting block; 11, positioning mechanism; 12, clamping plate; 13, positioning bolt; 14, pressing plate; 15, sealing ring; 16, positioning frame; 17, connecting sleeve; 18, ball; 19, oil injection hole; 20, limiting block. Detailed implementation manners

[0023] To further illustrate each embodiment, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. They are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, a protective housing structure for an automotive steering gear is provided.

[0025] Embodiment 1:

[0026] As Figures 1 to 5 shown, a protective housing structure for an automotive steering gear includes a protective housing 1. A transmission shaft 2 is connected to the top of the protective housing 1. A pull rod 3 is arranged inside the protective housing 1. Dust covers 4 are connected to both ends of the protective housing 1. A positioning plate 5 is arranged at one end of the dust cover 4. A convex block 6 is fixedly connected to the positioning plate 5. A threaded rod 7 is connected to the convex block 6. A rotating handle 8 is fixedly connected to one end of the threaded rod 7. The other end of the threaded rod 7 is connected to a locking ring 9. An adjusting block 10 is connected to the threaded rod 7. A positioning mechanism 11 is fixedly connected to the adjusting block 10. The positioning mechanism 11 is arranged on the pull rod 3. A clamping plate 12 is arranged at the other end of the dust cover 4. A positioning bolt 13 is connected to the clamping plate 12. A pressing plate 14 is connected to the positioning bolt 13. A sealing ring 15 is arranged between the pressing plate 14 and the protective housing 1. The dust cover 4 covers the outside of the pull rod 3. A through hole matching the pull rod 3 is formed in the positioning plate 5. The clamping plates 12 are symmetrically arranged on both sides of the protective housing 1. An arc-shaped groove matching the shape of the protective housing 1 is arranged on the pressing plate 14. A limiting block 20 is arranged at one end of the protective housing 1. The limiting block 20 is arranged inside the dust cover 4 to connect the dust cover 4 to the outside of the protective housing 1. By driving the pressing plate 14 to move downward through the positioning bolt 13, the pressing plate 14 clamps and fixes the protective housing 1, and at the same time clamps and fixes the sealing ring 15 at the connection part, improving the dust-proof effect on the pull rod 3, facilitating installation and disassembly, and being convenient for operation.

[0027] Embodiment 2:

[0028] As Figures 1 to 5As shown, a protective housing structure of an automobile steering gear is shown, in which a locking ring 9 is fixed to one end of a threaded rod 7, and a positioning mechanism 11 is sleeved on the outside of a tie rod 3. The threaded rod 7 is rotated by turning a handle 8 according to the vehicle model, so that an adjustment block 10 drives the positioning mechanism 11 to move. By adjusting the position of the positioning mechanism 11 on the tie rod 3, the torque of the tie rod 3 can be enhanced, and the service life of the tie rod 3 can be improved.

[0029] Embodiment 3:

[0030] like Figures 1 to 5 As shown, a protective housing structure of an automobile steering gear, wherein a positioning mechanism 11 includes a positioning frame 16, a connecting sleeve 17 and a ball 18, wherein the ball 18 is evenly arranged on the connecting sleeve 17, and the connecting sleeve 17 is respectively fitted with the inner side of the positioning frame 16 and the outer side of the pull rod 3 through the ball 18, an oil filling hole 19 is opened on the positioning frame 16, and a lubrication groove is arranged on the inner wall of the positioning frame 16 at a position corresponding to the ball 18, and lubricating oil can be injected through the oil filling hole 19 when the positioning mechanism 11 is used, and the connection with the pull rod 3 can be lubricated through the ball 18, so as to facilitate daily maintenance thereof.

[0031] In the utility model, the dust cover 4 is connected to the outer side of the protective shell 1, and the pressure plate 14 is driven downward by the positioning bolt 13, so that the pressure plate 14 clamps and fixes the protective shell 1, and at the same time, the sealing ring 15 at the connection is clamped and fixed, so as to improve the dustproof effect on the pull rod 3. When in use, the threaded rod 7 is driven to rotate by turning the handle 8 according to the vehicle model, so that the adjustment block 10 drives the positioning mechanism 11 to move, and the position of the positioning mechanism 11 on the pull rod 3 is adjusted, so as to enhance the torque of the pull rod 3 and improve the service life of the pull rod 3. When using the positioning mechanism 11, lubricating oil can be injected through the oil filling hole 19, and the connection with the pull rod 3 can be lubricated through the ball 18, so as to facilitate daily maintenance. The protective shell 1 and the dust cover 4 are easy to install and disassemble, and are convenient to operate.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automotive steering gear protective housing structure, including a protective housing (1), characterized in that, A drive shaft (2) is connected to the top of the protective housing (1). A pull rod (3) is arranged inside the protective housing (1). Dust covers (4) are connected to both ends of the protective housing (1). A positioning plate (5) is arranged at one end of the dust cover (4). A convex block (6) is fixedly connected to the positioning plate (5). A threaded rod (7) is connected to the convex block (6). A turning handle (8) is connected to one end of the threaded rod (7). A locking ring (9) is connected to the other end of the threaded rod (7). An adjusting block (10) is connected to the threaded rod (7). A positioning mechanism (11) is connected to the adjusting block (10). The positioning mechanism (11) is arranged on the pull rod (3). A clamping plate (12) is arranged at the other end of the dust cover (4). A positioning bolt (13) is connected to the clamping plate (12). A pressing plate (14) is connected to the positioning bolt (13). A sealing ring (15) is arranged between the pressing plate (14) and the protective housing (1).

2. The protective housing structure of an automotive steering gear according to claim 1, characterized in that The dust cover (4) covers the outside of the pull rod (3). A through hole matching the pull rod (3) is formed in the positioning plate (5).

3. The protective housing structure of an automotive steering gear according to claim 1 or 2, characterized in that, The locking ring (9) is fixed to one end of the threaded rod (7). The positioning mechanism (11) is sleeved on the outside of the pull rod (3).

4. The protective housing structure of an automotive steering gear according to claim 1, characterized in that, The positioning mechanism (11) includes a positioning frame (16), a connecting sleeve (17) and balls (18). The balls (18) are evenly arranged on the connecting sleeve (17). The connecting sleeve (17) is in contact with the inner side of the positioning frame (16) and the outside of the pull rod (3) respectively through the balls (18).

5. The structure of a protective housing for an automotive steering gear according to claim 4, characterized in that, An oil injection hole (19) is formed in the positioning frame (16). Lubricating grooves are arranged at positions corresponding to the balls (18) on the inner wall of the positioning frame (16).

6. The protective housing structure of an automotive steering gear according to claim 1, characterized in that, The clamping plates (12) are symmetrically arranged on both sides of the protective housing (1). An arc-shaped groove matching the shape of the protective housing (1) is arranged on the pressing plate (14).

7. A protective housing structure for an automotive steering gear according to claim 1, characterized in that, A limiting block (20) is arranged at one end of the protective housing (1). The limiting block (20) is arranged inside the dust cover (4).

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