Automobile steering column tight and stable in connection
By using structures such as fixed seats, mounting seats, universal joint forks and clamping strips in the steering column of the car, the problem of loose steering column connections is solved, the stability and safety of the steering system are improved, and the collision buffering effect is provided .
Patent Information
- Application Number
- CN202421408075.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The connections of the steering columns of the automobile are prone to loosening when used for a long time, resulting in a reduced stability and reliability of the steering system.
It adopts a structure including a fixed base, an installation base, the first universal joint fork and a clamping strip, and uses a combination of bolts and limit blocks to ensure the tight connection between the steering shaft and the steering column, and a chute and a chute are provided at the telescopic end of the steering column. Snap-on strips to provide cushioning.
It improves the connection tightness and stability between the steering column and the steering shaft, enhance the reliability and security of the steering system, and provide a certain buffer effect when the car collides.
Smart Images
Figure CN222388242U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile steering columns, in particular to an automobile steering column with a tight and stable connection. Background Art
[0002] The car steering column is located on the car steering wheel and is a device for the driver to control the direction. It connects the steering wheel and the steering gear and is an important component of the steering system. Through the steering column, the driver can transfer torque to the steering gear, thereby driving the steering gear to achieve steering. Common steering columns include hydraulic power steering columns, electronically controlled hydraulic power steering columns and electric power steering columns. Different types of steering columns have different system characteristics. The bracket of the steering column is fixed to the module beam with two bolts, the steering column mounting bracket is also bolted to the module beam, and the bracket of the steering column is also bolted to the mounting bracket.
[0003] For example, the Chinese patent "A platform steering column tube for automobiles" with announcement number CN216374711U includes a tube body with an axial hole arranged inside, an upper connecting bracket arranged on the upper outer surface of the tube body, and a lower connecting bracket arranged on the lower outer surface of the tube body, the fixing direction of the upper connecting bracket is perpendicular to the fixing direction of the lower connecting bracket, and a connecting groove is arranged on the lower connecting bracket, the connecting groove is in the shape of a long groove, and the length direction is along the axial direction of the tube body; a T-shaped slot is arranged at the lower part of the tube body, the transverse part of the slot is in the circumferential direction of the tube body, and the vertical part of the slot is in the axial direction of the tube body, there are two lower connecting brackets, the two lower connecting brackets are parallel to each other, the T-shaped slot is between the two lower connecting brackets, and the axial length of the slot is greater than the length of the lower connecting bracket; the end of the transverse part of the slot extends to the axial extension line where the lower connecting bracket is connected to the tube body, the transverse part is located between the lower end side of the lower connecting bracket and the lower end of the tube body, and the end of the vertical part of the tube body corresponding to the slot is provided with an outwardly protruding retaining edge.
[0004] Although the above-mentioned prior art can realize the use of the steering column, in actual use, on the one hand, the connection of the automobile steering column is prone to loosening after long-term use. The steering column is connected to the steering shaft and the gear shaft respectively by bolts, which leads to metal fatigue of the bolts after long-term use, thereby affecting the stability of the connection between the steering column and the steering shaft. On the other hand, the power transmission is not stable enough when the car is turning, and it is difficult to effectively respond to angle changes and turning operations when the car is turning, thereby reducing the reliability and safety of the steering system. Therefore, it does not meet the existing needs. In this regard, we propose a steering column for automobiles with a tight and stable connection. Utility Model Content
[0005] The utility model aims to provide a tightly connected and stable steering column for automobiles, so as to solve the problems in the above-mentioned background technology that the connection of the automobile steering column is easy to loosen after long-term use and the power transmission of the automobile is not stable enough when turning.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tightly and stably connected automobile steering column, comprising a steering column fixed end, a fixing seat is arranged outside the steering column fixed end, the fixing seat is rotatably connected to the steering column fixed end, and the fixing seat is fixedly connected to the automobile frame; and further comprising:
[0007] A mounting seat is arranged above the fixed end of the steering column, a slot is arranged inside the mounting seat, an insertion rod is arranged inside the slot, and limit blocks are fixedly arranged on both sides of the outside of the insertion rod, and the limit blocks and the slot are slidably limited;
[0008] The transverse limiting holes are arranged on both sides of the mounting seat, the front and rear ends of the mounting seat are both provided with vertical limiting holes, the interior of the insertion rod is provided with a cross-shaped limiting hole, and the cross-shaped limiting hole corresponds to the positions of the transverse limiting hole and the vertical limiting hole respectively.
[0009] Preferably, a first bolt is provided inside the transverse limiting hole, and one end of the first bolt passes through the cross-shaped limiting hole and extends to the outside of the mounting seat, a positioning hole is provided inside the first bolt, and the positioning hole is connected to the cross-shaped limiting hole, a first nut is provided at one end of the first bolt located outside the mounting seat, and the first nut is threadedly connected to the first bolt.
[0010] Preferably, a second bolt is arranged inside the vertical limiting hole, and the second bolt passes through the positioning hole and extends to the outside of the mounting seat, a second nut is arranged at one end of the second bolt located outside the mounting seat, and the second nut is threadedly connected to the second bolt.
[0011] Preferably, a rubber pad is fixedly provided on one side of the second nut, the first nut, the first bolt and the second bolt close to the mounting seat, and the rubber pad is in contact with the mounting seat.
[0012] Preferably, a first universal joint fork is fixedly provided at the lower end of the fixed end of the steering column and the upper end of the insertion rod, a cross shaft is provided at the middle position inside the first universal joint fork, a second universal joint fork is provided inside the first universal joint fork close to the outer side of the cross shaft, and the cross shaft is rotatably connected to the first universal joint fork and the second universal joint fork respectively.
[0013] Preferably, a steering shaft is fixedly provided at the upper end of the second universal yoke above the fixed end of the steering column, and a gear shaft is fixedly provided at the lower end of the second universal yoke below the fixed end of the steering column.
[0014] Preferably, a slide groove is provided inside the fixed end of the steering column, a telescopic end of the steering column is provided inside the slide groove, and the telescopic end of the steering column extends to the outside of the slide groove and is fixedly connected to the mounting seat, and four clip strips are fixedly provided outside the telescopic end of the steering column located inside the slide groove, the clip strips are distributed equidistantly in a ring shape, and the clip strips are clipped and fixed to the slide groove.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The utility model can make the connection between the steering shaft and the telescopic end of the steering column tighter and more stable through the first bolt and the second bolt. When installing the steering shaft and the telescopic end of the steering column, first align the insertion rod with the opening position of the slot and push it into the slot. At this time, the limit block slides and limits in the slot until the insertion rod is pushed to a suitable position. At this time, the cross-shaped limit hole on the insertion rod corresponds to the position of the vertical limit hole and the horizontal limit hole respectively. The first bolt is inserted into the horizontal limit hole and extends through the cross-shaped limit hole to the outside of the mounting seat, and then the first bolt is fixed by the first nut. At this time, the positioning hole on the first bolt corresponds to the position of the cross-shaped limit hole. The second bolt is then inserted into the vertical limit hole and extends through the positioning hole to the outside of the mounting seat. The second bolt is then fixed by the second nut, avoiding metal fatigue after long-term use, thereby improving the tightness and stability of the steering column connection.
[0017] 2. The utility model can make the steering mechanism more stable through the first universal yoke and the second universal yoke. When the steering shaft is rotated, the second universal yoke rotates, and the rotating second universal yoke drives the cross shaft rotatably connected with it to rotate, and finally the rotation is transmitted to the first universal yoke and the telescopic end of the steering column through the cross shaft. The fixed end of the steering column is rotated by the clamping strip on the outside of the telescopic end of the steering column and the sliding groove. When the second universal yoke and the first universal yoke rotate, the angle can change, thereby improving the reliability and safety of the steering system.
[0018] 3. The utility model can provide a certain buffer to the steering column when the car collides by means of the clamping strip and the slide groove. When the car collides, the fixed end of the steering column fixed on the car frame is impacted together with the car frame. At this time, when the fixed end of the steering column is impacted, it moves upward while the telescopic end of the steering column moves into the slide groove. The movement of the telescopic end of the steering column buffers the impact to a certain extent, thereby avoiding the impact from threatening the personal safety of the driver. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a front view of the internal structure of the utility model;
[0020] Figure 2 It is a side view of the internal structure of the utility model;
[0021] Figure 3 It is a partial schematic diagram of the telescopic structure of the utility model;
[0022] Figure 4 For the utility model Figure 1 A partial enlarged view of area A.
[0023] In the figure: 1. fixed end of the steering column; 2. fixing seat; 3. telescopic end of the steering column; 4. mounting seat; 5. first universal joint fork; 6. cross shaft; 7. second universal joint fork; 8. steering shaft; 9. gear shaft; 10. plug rod; 11. limit block; 12. slot; 13. first bolt; 14. first nut; 15. rubber pad; 16. second bolt; 17. positioning hole; 18. horizontal limit hole; 19. cross limit hole; 20. vertical limit hole; 21. clamping strip; 22. slide groove; 23. second nut. DETAILED DESCRIPTION
[0024] 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.
[0025] See also Figure 1-4 The utility model provides an embodiment: a tightly and stably connected automobile steering column, comprising a steering column fixed end 1, a fixing seat 2 is arranged outside the steering column fixed end 1, the fixing seat 2 is rotatably connected to the steering column fixed end 1, and the fixing seat 2 is fixedly connected to the automobile frame; and further comprising:
[0026] A mounting seat 4 is arranged above the fixed end 1 of the steering column, a slot 12 is arranged inside the mounting seat 4, an insert rod 10 is arranged inside the slot 12, and limit blocks 11 are fixedly arranged on both sides of the outside of the insert rod 10, and the limit blocks 11 and the slot 12 are slidably limited;
[0027] The transverse limiting holes 18 are arranged on both sides inside the mounting seat 4, the front and rear ends inside the mounting seat 4 are both provided with vertical limiting holes 20, the inside of the insertion rod 10 is provided with a cross-shaped limiting hole 19, and the cross-shaped limiting hole 19 corresponds to the positions of the transverse limiting hole 18 and the vertical limiting hole 20 respectively.
[0028] During use, when the steering shaft 8 and the telescopic end 3 of the steering column are installed, first align the insertion rod 10 with the opening position of the slot 12 and push it into the slot 12. At this time, the limit block 11 slides and limits in the slot 12 until the insertion rod 10 is pushed to a suitable position. At this time, the cross-shaped limit hole 19 on the insertion rod 10 corresponds to the vertical limit hole 20 and the transverse limit hole 18 respectively. The first bolt 13 is inserted into the transverse limit hole 18 and passes through the cross-shaped limit hole 19 to extend to the outside of the mounting seat 4, and then the first bolt 13 is fixed by the first nut 14. At this time, the positioning hole 17 on the first bolt 13 corresponds to the position of the cross-shaped limit hole 19. Then the second bolt 16 is inserted into the vertical limit hole 20 and passes through the positioning hole 17 to extend to the outside of the mounting seat 4, and then the second bolt 16 is fixed by the second nut 23.
[0029] See also Figure 1 and Figure 4 A first bolt 13 is arranged inside the transverse limiting hole 18, and one end of the first bolt 13 passes through the cross-shaped limiting hole 19 and extends to the outside of the mounting seat 4. A positioning hole 17 is arranged inside the first bolt 13, and the positioning hole 17 is communicated with the cross-shaped limiting hole 19. A first nut 14 is arranged at one end of the first bolt 13 located outside the mounting seat 4, and the first nut 14 is threadedly connected to the first bolt 13, so as to fix the steering shaft 8 through the first bolt 13.
[0030] See also Figure 1 and Figure 2 A second bolt 16 is arranged inside the vertical limiting hole 20, and the second bolt 16 passes through the positioning hole 17 and extends to the outside of the mounting seat 4. A second nut 23 is arranged at one end of the second bolt 16 located outside the mounting seat 4, and the second nut 23 is threadedly connected to the second bolt 16, so as to facilitate strengthening the connection of the steering shaft 8 through the second bolt 16.
[0031] See also Figure 1 and Figure 2 A rubber pad 15 is fixedly provided on one side of the second nut 23, the first nut 14, the first bolt 13, and the second bolt 16 close to the mounting seat 4, and the rubber pad 15 is in contact with the mounting seat 4, so that the second nut 23 and the first nut 14 are prevented from loosening by the rubber pad 15.
[0032] See also Figure 1 and Figure 2 A first universal joint fork 5 is fixedly provided at the lower end of the fixed end 1 of the steering column and the upper end of the insertion rod 10, a cross shaft 6 is provided at the middle position inside the first universal joint fork 5, a second universal joint fork 7 is provided inside the first universal joint fork 5 near the outer side of the cross shaft 6, and the cross shaft 6 is rotatably connected to the first universal joint fork 5 and the second universal joint fork 7 respectively, so as to make the rotation more stable through the first universal joint fork 5 and the second universal joint fork 7.
[0033] See also Figure 1 A steering shaft 8 is fixedly provided at the upper end of the second universal joint fork 7 located above the fixed end 1 of the steering column, and a gear shaft 9 is fixedly provided at the lower end of the second universal joint fork 7 located below the fixed end 1 of the steering column, so as to rotate the rotating column by rotating the steering shaft 8.
[0034] See also Figure 1 and Figure 3 A slide groove 22 is arranged inside the fixed end 1 of the steering column, and a steering column telescopic end 3 is arranged inside the slide groove 22, and the steering column telescopic end 3 extends to the outside of the slide groove 22 and is fixedly connected to the mounting seat 4. Four clamping strips 21 are fixedly arranged outside the telescopic end 3 of the steering column located inside the slide groove 22, and the clamping strips 21 are distributed equidistantly in a ring shape, and the clamping strips 21 are clamped and fixed with the slide groove 22, so that the telescopic end 3 of the steering column can be limited by the clamping strips 21.
[0035] Working principle: when the steering shaft 8 is rotated, the second universal joint fork 7 rotates, and the rotating second universal joint fork 7 drives the cross shaft 6 connected to it to rotate, and finally the rotation is transmitted to the first universal joint fork 5 and the telescopic end 3 of the steering column through the cross shaft 6. The fixed end 1 of the steering column is rotated by the clamping strip 21 on the outside of the telescopic end 3 of the steering column and the slide groove 22. When the second universal joint fork 7 and the first universal joint fork 5 rotate, the angle can change. When the car collides, the fixed end 1 of the steering column fixed on the car frame is impacted together with the car frame. At this time, when the fixed end 1 of the steering column is impacted, it moves upward and the telescopic end 3 of the steering column moves into the slide groove 22. The movement of the telescopic end 3 of the steering column has a certain buffering effect on the impact.
[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A steering column for an automobile with a tight and stable connection, comprising a steering column fixed end (1), a fixing seat (2) being arranged outside the steering column fixed end (1), the fixing seat (2) being rotatably connected to the steering column fixed end (1), and the fixing seat (2) being fixedly connected to the automobile frame; Features: Also includes: A mounting seat (4) is arranged above the fixed end (1) of the steering column, a slot (12) is arranged inside the mounting seat (4), an insertion rod (10) is arranged inside the slot (12), and limiting blocks (11) are fixedly arranged on both sides of the outside of the insertion rod (10), and the limiting blocks (11) and the slot (12) are slidably limited. Transverse limiting holes (18) are arranged on both sides of the interior of the mounting seat (4), the interior of the mounting seat (4) is provided with vertical limiting holes (20) at the front and rear ends, and the interior of the insertion rod (10) is provided with a cross-shaped limiting hole (19), and the cross-shaped limiting hole (19) corresponds to the positions of the transverse limiting hole (18) and the vertical limiting hole (20), respectively.
2. The automotive steering column with tight and stable connection according to claim 1, characterized in that: A first bolt (13) is arranged inside the transverse limiting hole (18), and one end of the first bolt (13) passes through the cross-shaped limiting hole (19) and extends to the outside of the mounting seat (4); a positioning hole (17) is arranged inside the first bolt (13), and the positioning hole (17) is communicated with the cross-shaped limiting hole (19); a first nut (14) is arranged at one end of the first bolt (13) located outside the mounting seat (4), and the first nut (14) is connected to the first bolt (13) by a thread.
3. The automobile steering column with tight and stable connection according to claim 2, characterized in that: A second bolt (16) is arranged inside the vertical limiting hole (20), and the second bolt (16) passes through the positioning hole (17) and extends to the outside of the mounting seat (4), and a second nut (23) is arranged at one end of the second bolt (16) located outside the mounting seat (4), and the second nut (23) is connected to the second bolt (16) by threading.
4. The automobile steering column with tight and stable connection according to claim 3, characterized in that: A rubber pad (15) is fixedly provided on one side of the second nut (23), the first nut (14), the first bolt (13), and the second bolt (16) close to the mounting seat (4), and the rubber pad (15) is in contact with the mounting seat (4).
5. The automobile steering column with tight and stable connection according to claim 4, characterized in that: A first universal joint fork (5) is fixedly arranged at the lower end of the fixed end (1) of the steering column and the upper end of the insertion rod (10); a cross shaft (6) is arranged at a middle position inside the first universal joint fork (5); a second universal joint fork (7) is arranged inside the first universal joint fork (5) close to the outer side of the cross shaft (6); and the cross shaft (6) is rotatably connected to the first universal joint fork (5) and the second universal joint fork (7), respectively.
6. The automobile steering column with tight and stable connection according to claim 5, characterized in that: A steering shaft (8) is fixedly arranged at the upper end of the second universal joint fork (7) located above the fixed end (1) of the steering column, and a gear shaft (9) is fixedly arranged at the lower end of the second universal joint fork (7) located below the fixed end (1) of the steering column.
7. The automobile steering column with tight and stable connection according to claim 1, characterized in that: A slide groove (22) is arranged inside the fixed end (1) of the steering column, a steering column telescopic end (3) is arranged inside the slide groove (22), and the steering column telescopic end (3) extends to the outside of the slide groove (22) and is fixedly connected to the mounting seat (4), and four clamping strips (21) are fixedly arranged outside the telescopic end (3) of the steering column located inside the slide groove (22), the clamping strips (21) are distributed in an annular shape with equal distances, and the clamping strips (21) are clamped and fixed to the slide groove (22).