Automobile steering shaft

Abstract

The utility model relates to the technical field of automobile accessories, and discloses an automobile steering shaft which comprises a steering shaft body. The universal joint body is arranged at the top of the steering shaft body; the steering shaft comprises a universal joint body and a dismounting mechanism arranged at the bottom of the universal joint body, the dismounting mechanism comprises a circular groove, a circular block, a strip-shaped groove, a fixing strip, a circular ring, a connecting block, a cavity, a fixing rod, a fixing groove, a clamping groove, a clamping rod, a connecting piece, a first spring and a pull block, the circular block is fixedly connected to the inner wall of the universal joint body, and the circular groove is formed in the top of the steering shaft body; the circular blocks are fixedly connected to the outer walls of the circular grooves, the circular blocks are inserted into the circular grooves, the strip-shaped grooves are formed in the inner walls of the circular grooves, and the fixing strips are fixedly connected to the outer walls of the circular blocks and inserted into the strip-shaped grooves; according to the universal joint, the clamping rod is pulled to be separated from the clamping groove, the fixing rod relieves limitation, and the fixing rod is pulled out to relieve limitation of the fixing strip, so that the universal joint body is convenient to disassemble, and the problem that inconvenience is brought to maintenance work due to welding is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an automobile steering shaft. Background Art

[0002] The function of the steering shaft body is to transmit the steering torque applied by the driver to the steering wheel to the steering gear. Its upper part is fixedly connected to the steering wheel, and its lower part is connected to the steering gear. The steering shaft body passes through the steering column tube and is supported on bearings and bushings inside the column tube.

[0003] Most of the existing steering shaft bodies and universal joint bodies are connected by welding. Since the welding parts are exposed to the outside for a long time, they are easily corroded by external mud and water, which leads to de-welding and breakage of the steering shaft body and the universal joint body. Secondly, since the steering shaft body and the universal joint body are welded together, they need to be disassembled as a whole for maintenance and replacement, which brings inconvenience to the maintenance work. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, the utility model provides a steering shaft for an automobile.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kind of automobile steering shaft, comprising a steering shaft body; a universal joint body arranged at the top of the steering shaft body; and a disassembly and assembly mechanism arranged at the bottom of the universal joint body, the disassembly and assembly mechanism comprising a circular groove, a round block, a strip groove, a fixing strip, a circular ring, a connecting block, a cavity, a fixing rod, a fixing groove, a clamping groove, a clamping rod, a connecting piece, a spring, and a pulling block, the round block is fixedly connected to the inner wall of the universal joint body, the circular groove is opened at the top of the steering shaft body, and the round block is inserted into the inside of the circular groove, the strip groove is opened on the inner wall of the circular groove, the fixing strip is fixedly connected to the outer wall of the round block and inserted into the inside of the strip groove, the fixing groove is opened on the fixing strip, and one end of the fixing rod is inserted into the inside of the fixing groove.

[0006] Preferably, the ring is fixedly sleeved on the outer wall of the steering shaft body, the connecting block is fixedly connected to the outer wall of the ring, and the cavity is opened inside the connecting block, one end of the fixing rod sequentially penetrates the connecting block, the ring and the outer wall of the steering shaft body and extends to the inside of the fixing groove, and the fixing rod is movably connected to the connecting block, the ring and the steering shaft body.

[0007] Preferably, the slot is opened at the top of the fixing rod, and the bottom of the slot passes through the top of the connecting block and extends to the inside of the slot. The slot is movably connected to the connecting block and the slot, and the pull block is fixedly connected to the top of the slot. By setting the slot to cooperate with the slot, the inserted fixing rod can be limited and fixed.

[0008] Preferably, the connecting piece is fixedly connected to the outer wall of the card rod and is arranged inside the cavity. One end of the spring one is fixedly connected to the top of the connecting piece, and the other end is fixedly connected to the top of the inner wall of the cavity. By arranging spring one, the card rod can be driven to reset.

[0009] Preferably, a slide groove is provided on the top of the fixing rod, and the inner wall of the slide groove is abutted against a top sheet, and the top sheet is movably connected to the slide groove, and the slide groove is provided to prevent the top sheet from blocking the insertion of the fixing rod.

[0010] Preferably, the outer wall of the top plate is fixedly connected to one end of a connecting rod, one side of the inner wall of the cavity is fixedly connected to a limiting sleeve, and the other end of the connecting rod is slidably connected to the inside of the limiting sleeve, a second spring is provided inside the limiting sleeve, and the two ends of the second spring are respectively fixedly connected to the other end of the connecting rod and one side of the inner wall of the cavity. By providing the second spring, the top plate can push the fixing rod to avoid the fixing rod being flush with the outer wall of the connecting block after insertion, which makes it difficult to pull out during disassembly. The provision of the limiting sleeve and the connecting rod allows the top plate to move horizontally stably.

[0011] Compared with the prior art, the utility model provides a vehicle steering shaft, which has the following beneficial effects:

[0012] 1. The automobile steering shaft can be disengaged from the card slot by pulling the card rod, and the restriction of the fixing rod can be released by pulling out the fixing rod, thereby facilitating the disassembly of the universal joint body and solving the problem of inconvenience caused by welding in maintenance work.

[0013] 2. The automobile steering shaft, after releasing the restriction of the fixing rod, the second spring resets and drives the top plate to push the inner wall of the slide groove, so that the fixing rod is pushed out of the connecting block, preventing the fixing rod from being pulled out and causing trouble for disassembly, so that it pops out automatically, which is convenient for the staff to disassemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the utility model;

[0017] Figure 3 It is an enlarged view of the utility model A;

[0018] Figure 4 It is a structural schematic diagram of the circular ring and the connecting block of the utility model.

[0019] In the figure: 1. steering shaft body; 2. universal joint body; 3. disassembly and assembly mechanism; 31. circular groove; 32. round block; 33. strip groove; 34. fixing strip; 35. circular ring; 36. connecting block; 37. cavity; 38. fixing rod; 39. fixing groove; 310. clamping groove; 311. clamping rod; 312. connecting plate; 313. spring 1; 314. pulling block; 4. spring 2; 5. slide groove; 6. top plate; 7. limit sleeve; 8. connecting rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example 1

[0021] like Figure 1-4 As shown, the utility model provides a steering shaft for an automobile, comprising a steering shaft body 1; a universal joint body 2 arranged on the top of the steering shaft body 1; and a disassembly and assembly mechanism 3 arranged at the bottom of the universal joint body 2, the disassembly and assembly mechanism 3 comprising a circular groove 31, a round block 32, a strip groove 33, a fixing bar 34, a circular ring 35, a connecting block 36, a cavity 37, a fixing rod 38, a fixing groove 39, a clamping groove 310, a clamping rod 311, a connecting piece 312, a spring 313, a pull block 314, a round block 3 2 is fixedly connected to the inner wall of the universal joint body 2, the circular groove 31 is opened at the top of the steering shaft body 1, and the round block 32 is inserted into the inside of the circular groove 31, the strip groove 33 is opened on the inner wall of the circular groove 31, the fixing strip 34 is fixedly connected to the outer wall of the round block 32 and inserted into the inside of the strip groove 33, the fixing groove 39 is opened on the fixing strip 34, and one end of the fixing rod 38 is inserted into the inside of the fixing groove 39, the circular ring 35 is fixedly sleeved on the outer wall of the steering shaft body 1, and the connecting block 36 is fixed to the connecting rod 38. The outer wall of the ring 35 is connected to the outer wall of the ring 35, and the cavity 37 is opened in the interior of the connecting block 36. One end of the fixing rod 38 passes through the outer wall of the connecting block 36, the ring 35 and the steering shaft body 1 in sequence and extends to the interior of the fixing groove 39. The fixing rod 38 is movably connected with the connecting block 36, the ring 35 and the steering shaft body 1. The slot 310 is opened at the top of the fixing rod 38, and the bottom of the clamping rod 311 passes through the top of the connecting block 36 and extends to the interior of the clamping groove 310. The clamping rod 311 is connected to the connecting block 36 and the clamping rod 311. The groove 310 is movably connected, and the pull block 314 is fixedly connected to the top of the clamping rod 311. By setting the clamping groove 310 and cooperating with the clamping rod 311, the inserted fixing rod 38 can be limited and fixed. The connecting piece 312 is fixedly connected to the outer wall of the clamping rod 311 and is arranged inside the cavity 37. One end of the spring 313 is fixedly connected to the top of the connecting piece 312, and the other end is fixedly connected to the top of the inner wall of the cavity 37. By setting the spring 313, the clamping rod 311 can be driven to reset.

[0022] In this embodiment, by pulling the clamping rod 311 to disengage it from the clamping slot 310, the fixing rod 38 is released from the restriction, and the restriction of the fixing bar 34 can be released by pulling out the fixing rod 38, thereby facilitating the disassembly of the universal joint body 2 and solving the problem of inconvenience caused by welding to the maintenance work. The number of the connecting block 36, the fixing bar 34 and the strip groove 33 are all four, which are respectively arranged in a circular array on the outer wall of the ring 35, the outer wall of the round block 32 and the inner wall of the circular groove 31 to improve the stability of the installation. Example 2

[0023] like Figure 3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a slide groove 5 is provided on the top of the fixing rod 38, and the inner wall of the slide groove 5 is abutted against a top sheet 6, and the top sheet 6 is movably connected to the slide groove 5. The slide groove 5 is provided to prevent the top sheet 6 from blocking the insertion of the fixing rod 38, and the outer wall of the top sheet 6 is fixedly connected to one end of the connecting rod 8, and one side of the inner wall of the cavity 37 is fixedly connected to a limiting sleeve 7, and the other end of the connecting rod 8 is slidably connected to the inside of the limiting sleeve 7, and a spring 2 4 is provided inside the limiting sleeve 7, and the two ends of the spring 2 4 are respectively fixedly connected to the other end of the connecting rod 8 and one side of the inner wall of the cavity 37. By providing the spring 2 4, the top sheet 6 can push the fixing rod 38 to prevent the fixing rod 38 from being flush with the outer wall of the connecting block 36 after insertion, which makes it difficult to pull out during disassembly. The setting of the limiting sleeve 7 and the connecting rod 8 allows the top sheet 6 to move horizontally stably.

[0024] In this embodiment, after the restriction of the fixing rod 38 is released, the spring 2 4 is reset to drive the top plate 6 to push the inner wall of the slide groove 5, so that the fixing rod 38 is pushed out of the connecting block 36, preventing the fixing rod 38 from being pulled out and causing trouble for disassembly, so that it is automatically popped out, which is convenient for the staff to disassemble and maintain.

[0025] The working principle of this automobile steering shaft is described in detail below.

[0026] like Figure 1-4 As shown, when in use, by pulling the clamping rod 311 to disengage from the clamping slot 310, the fixing rod 38 is released from the restriction, and the fixing bar 34 can be released by pulling out the fixing rod 38, thereby facilitating the disassembly of the universal joint body 2 and solving the problem of inconvenience caused to the maintenance work due to welding. After the restriction of the fixing rod 38 is released, the spring 24 is reset to drive the top plate 6 to push the inner wall of the slide groove 5, so that the fixing rod 38 is pushed out of the connecting block 36, preventing the fixing rod 38 from being pulled out and causing trouble for disassembly, so that it is automatically ejected, which is convenient for the staff to disassemble and maintain. The above is the working process of the entire device, and the contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steering shaft for an automobile, comprising a steering shaft body (1); a universal joint body (2) arranged at the top of the steering shaft body (1); and a disassembly and assembly mechanism (3) arranged at the bottom of the universal joint body (2), characterized in that: The disassembly and assembly mechanism (3) comprises a circular groove (31), a circular block (32), a strip groove (33), a fixing strip (34), a circular ring (35), a connecting block (36), a cavity (37), a fixing rod (38), a fixing groove (39), a clamping groove (310), a clamping rod (311), a connecting piece (312), a spring 1 (313), and a pulling block (314). The circular block (32) is fixedly connected to the inner wall of the universal joint body (2). The circular groove (31) is formed at the top of the steering shaft body (1), and the circular block (32) is inserted into the circular groove (31). The strip groove (33) is formed on the inner wall of the circular groove (31). The fixing strip (34) is fixedly connected to the outer wall of the circular block (32) and is inserted into the strip groove (33). The fixing groove (39) is formed on the fixing strip (34), and one end of the fixing rod (38) is inserted into the fixing groove (39).

2. The automotive steering shaft according to claim 1, characterized in that: The circular ring (35) is fixedly sleeved on the outer wall of the steering shaft body (1), the connecting block (36) is fixedly connected to the outer wall of the circular ring (35), and the cavity (37) is opened inside the connecting block (36), one end of the fixing rod (38) sequentially penetrates the connecting block (36), the circular ring (35) and the outer wall of the steering shaft body (1) and extends to the inside of the fixing groove (39), and the fixing rod (38) is movably connected to the connecting block (36), the circular ring (35) and the steering shaft body (1).

3. The automobile steering shaft according to claim 1, characterized in that: The clamping slot (310) is formed at the top of the fixing rod (38), and the bottom of the clamping rod (311) passes through the top of the connecting block (36) and extends to the inside of the clamping slot (310). The clamping rod (311) is movably connected to the connecting block (36) and the clamping slot (310), and the pulling block (314) is fixedly connected to the top of the clamping rod (311).

4. The automobile steering shaft according to claim 3, characterized in that: The connecting piece (312) is fixedly connected to the outer wall of the clamping rod (311) and is arranged inside the cavity (37); one end of the spring (313) is fixedly connected to the top of the connecting piece (312), and the other end is fixedly connected to the top of the inner wall of the cavity (37).

5. The automobile steering shaft according to claim 1, characterized in that: A sliding groove (5) is provided at the top of the fixing rod (38), and a top plate (6) is abutted against the inner wall of the sliding groove (5), and the top plate (6) is movably connected to the sliding groove (5).

6. The automobile steering shaft according to claim 5, characterized in that: One end of a connecting rod (8) is fixedly connected to the outer wall of the top plate (6), one side of the inner wall of the cavity (37) is fixedly connected to a limiting sleeve (7), and the other end of the connecting rod (8) is slidably connected to the inside of the limiting sleeve (7), and a second spring (4) is arranged inside the limiting sleeve (7), and the two ends of the second spring (4) are respectively fixedly connected to the other end of the connecting rod (8) and one side of the inner wall of the cavity (37).

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