A noise reduction limiting structure for a vehicle steering column

Abstract

The utility model relates to a kind of for the noise reduction limit structure of automobile steering column, belong to automobile steering gear system parts technical field. Including upper pipe column, lower pipe column, guide sliding block and noise reduction block, upper pipe column is slidably equipped in lower pipe column interior, lower pipe column circumference is provided with guide sliding hole, guide sliding hole is slidably installed with guide sliding block, its characterized in that: guide sliding block is connected between with upper pipe column by rivet, the lower pipe column on the outside of the both ends of guide sliding hole is fixed with mounting seat by bolt, mounting seat is clamped with noise reduction block, noise reduction block extends to guide sliding hole, noise reduction block and guide sliding block are correspondingly arranged to extend to guide sliding hole, to reduce the purpose of shock absorption and noise reduction to noise reduction block, help to reduce impact shock and impact noise, improve the comfort of user driving.

Description

Technical Field

[0001] This utility model relates to a noise reduction and limiting structure for automotive steering column, belonging to the technical field of automotive steering system components. Background Technology

[0002] The locking mechanism of a car steering column is a crucial component, responsible for locking and releasing the column body. Chinese patent application number "2021218246196" discloses a mechanical steering column, including an upper column and a lower column. The upper column is slidably mounted inside the lower column, and a guide hole is provided on the upper end face of the lower column. A guide slider is inherently located on the upper surface of the upper column, and the guide slider is slidably connected to the guide hole. Because the guide slider is made of plastic, when the user adjusts the column height, the guide slider collides with the edge of the guide hole in the lower column. This collision between plastic and metal produces noticeable vibration and impact noise, affecting the user's driving comfort. Therefore, improvement is necessary. Summary of the Invention

[0003] The purpose of this invention is to provide a noise reduction and limiting structure for a car steering column that effectively reduces impact vibration and noise, and improves the driving comfort of the user.

[0004] The technical solution of this utility model is: A noise reduction and limiting structure for an automotive steering column includes an upper column, a lower column, a guide slider, and a noise reduction block. The upper column is slidably mounted inside the lower column. A guide sliding hole is provided on the circumference of the lower column, and a guide slider is slidably mounted inside the guide sliding hole. The guide slider is connected to the upper column by rivets. Mounting seats are fixed to the lower column on both sides of the guide sliding hole by bolts. A noise reduction block is clamped on the mounting seat and extends into the guide sliding hole. The noise reduction block extending into the guide sliding hole is correspondingly arranged with the guide slider to achieve the purpose of vibration reduction and noise reduction.

[0005] The guide slider is a rectangular body with an oval cross-section. A clearance groove is provided in the center of the guide slider. A sleeve is integrally designed in the clearance groove. One end of the sleeve extends to the outside of the guide slider. Multiple claws are provided on the end of the sleeve extending to the outside of the guide slider. Buffer holes are provided at both ends of the guide slider. A buffer slit is provided on the guide slider on one side of the buffer hole.

[0006] The upper tube column is provided with a locking hole corresponding to the guide slider.

[0007] The mounting base is a plate-shaped body. One end of the mounting base has a fixing hole, and the other end of the mounting base has a positioning hole. The positioning hole is a stepped hole, and the bottom surface of the mounting base is provided with a limiting boss.

[0008] The noise reduction block is a rectangular body with an "L"-shaped cross section. One end of the noise reduction block is provided with a limiting groove, which is arc-shaped. The other end of the noise reduction block is provided with a protrusion, which has a "T"-shaped cross section. The protrusion is engaged with the positioning hole of the mounting base.

[0009] The guide slider is oval in shape, with a rivet hole in the center. Neoprene rubber buffer heads are fixed to both ends of the guide slider, and the neoprene rubber buffer heads are arc-shaped.

[0010] The advantages of this utility model compared with the prior art are as follows: This noise reduction limiting structure for automotive steering columns improves the noise reduction effect between the guide slider and the guide hole of the lower column by improving the structure of the guide slider and adding a noise reduction structure to the guide hole of the lower column. When the upper and lower columns are adjusted in height, the noise reduction block contacts the guide slider to achieve the purpose of shock absorption and noise reduction. At the same time, the limiting groove of the noise reduction block can fit snugly with the oval-shaped guide slider, which helps to reduce impact vibration and impact noise, and improve the driving comfort of the user. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the guide slider in this utility model; Figure 3 This is a three-dimensional structural schematic diagram of the guide slider in this utility model from another perspective; Figure 4 This is a three-dimensional structural diagram of the mounting base and noise reduction block in this utility model; Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure from another perspective; Figure 6 This is a three-dimensional structural diagram of the noise reduction block in this utility model; Figure 7 This is a three-dimensional structural diagram of the improved guide slider in this utility model.

[0012] In the diagram: 1. Upper tube column; 2. Lower tube column; 3. Guide slider; 4. Noise reduction block; 5. Guide sliding hole; 6. Clearance groove; 7. Sleeve; 8. Claw; 9. Buffer hole; 10. Buffer slot; 11. Mounting base; 12. Bolt; 13. Positioning hole; 14. Limiting groove; 15. Protrusion; 16. Rivet hole; 17. Neoprene buffer head; 18. Limiting boss. Detailed Implementation

[0013] As attached Figure 1-6 As shown Example 1

[0014] The noise reduction and limiting structure for automotive steering columns includes an upper column 1, a lower column 2, a guide slider 3, and a noise reduction block 4. The upper column 1 is slidably mounted inside the lower column 2. A guide sliding hole 5 is provided on the circumference of the lower column 2, and a guide slider 3 is slidably mounted inside the guide sliding hole 5. The guide slider 3 is a rectangular body with an oval cross-section. A clearance groove 6 is provided in the center of the guide slider 3. A sleeve 7 is integrally designed inside the clearance groove 6. One end of the sleeve 7 extends to the outside of the guide slider 3. Multiple claws 8 are provided on the end of the sleeve 7 extending to the outside of the guide slider 3. Buffer holes 9 are provided at both ends of the guide slider 3. A buffer slit 10 is provided on the guide slider 3 on one side of the buffer hole 9. The buffer slit 10 is connected to the buffer hole 9. In use, the buffer effect at both ends of the guide slider 3 is further improved through the buffer hole 9 and the buffer slit 10, thereby effectively reducing the impact vibration and impact noise of the guide slider 3.

[0015] The upper tube column 1 is provided with a locking hole corresponding to the guide slider 3. The guide slider 3 is fixedly connected to the locking hole of the upper tube column 1 by a rivet. When in use, the rivet passes through the sleeve 7 to support the inside of the sleeve 7. At the same time, the rivet also limits the position of the claw 8, so that the claw 8 is engaged in the locking hole of the upper tube column 1, thereby fixing the guide slider 3 in the locking hole of the upper tube column 1.

[0016] Mounting base 11 is fixedly installed on the lower tube column 2 on both sides of the guide sliding hole 5 by bolts 12. Mounting base 11 is a plate-shaped body. One end of mounting base 11 has a fixing hole. When in use, mounting base 11 can be fixedly installed on the lower tube column 2 by bolts 12 passing through the fixing hole.

[0017] The mounting base 11 has a positioning hole 13 at the other end. The positioning hole 13 is a stepped hole. The bottom surface of the mounting base 11 is provided with a limiting boss 18. A noise reduction block 4 is clamped on the mounting base 11. The noise reduction block 4 is a rectangular body with an "L" shaped cross section. One end of the noise reduction block 4 is provided with a limiting groove 14. The limiting groove 14 is arc-shaped. The other end of the noise reduction block 4 is provided with a protrusion 15. The protrusion 15 has a "T" shaped cross section. The protrusion 15 is engaged with the positioning hole 13 of the mounting base 11. The limiting boss 18 is used to limit one end of the noise reduction block 4.

[0018] The noise reduction block 4 is made of neoprene rubber. The noise reduction block 4 extends into the guide slide hole 5. The limiting groove 14 of the noise reduction block 4 extending into the guide slide hole 5 is correspondingly set with the guide slider 3. During operation, when the upper column 1 and the lower column 2 are adjusted in height, the noise reduction block 4 contacts the guide slider 3 to achieve the purpose of shock absorption and noise reduction. At the same time, the limiting groove 14 of the noise reduction block 4 can fit snugly with the oval-shaped guide slider 3, which helps to reduce impact vibration and impact noise, and improve the driving comfort of the user.

[0019] As attached Figure 1-7 As shown Example 2

[0020] The noise reduction and limiting structure for automotive steering columns includes an upper column 1, a lower column 2, a guide slider 3, and a noise reduction block 4. The upper column 1 is slidably mounted inside the lower column 2. A guide sliding hole 5 is provided on the circumference of the lower column 2, and the guide slider 3 is slidably mounted inside the guide sliding hole 5. The guide slider 3 is an oval rectangle, and a rivet hole 16 is provided in the center of the guide slider 3. Neoprene rubber buffer heads 17 are fixedly installed at both ends of the guide slider 3. The neoprene rubber buffer heads 17 are arc-shaped. In use, the neoprene rubber buffer heads 17 of the guide slider 3 further improve the buffering effect at both ends of the guide slider 3, thereby effectively reducing the impact vibration and impact noise of the guide slider 3.

[0021] The upper tube column 1 is provided with a locking hole corresponding to the guide slider 3. The rivet hole 16 of the guide slider 3 is anchored to the locking hole of the upper tube column 1 through the rivet.

[0022] Mounting base 11 is fixedly installed on the lower tube column 2 on both sides of the guide sliding hole 5 by bolts 12. Mounting base 11 is a plate-shaped body. One end of mounting base 11 has a fixing hole. When in use, mounting base 11 can be fixedly installed on the lower tube column 2 by bolts 12 passing through the fixing hole.

[0023] The mounting base 11 has a positioning hole 13 at the other end. The positioning hole 13 is a stepped hole. The bottom surface of the mounting base 11 is provided with a limiting boss 18. A noise reduction block 4 is clamped on the mounting base 11. The noise reduction block 4 is a rectangular body with an "L" shaped cross section. One end of the noise reduction block 4 is provided with a limiting groove 14. The limiting groove 14 is arc-shaped. The other end of the noise reduction block 4 is provided with a protrusion 15. The protrusion 15 has a "T" shaped cross section. The protrusion 15 is engaged with the positioning hole 13 of the mounting base 11. The limiting boss 18 is used to limit one end of the noise reduction block 4.

[0024] The noise reduction block 4 is made of neoprene rubber. The noise reduction block 4 extends into the guide slide hole 5. The limiting groove 14 of the noise reduction block 4 extending into the guide slide hole 5 is correspondingly set with the guide slider 3. During operation, when the upper column 1 and the lower column 2 are adjusted in height, the noise reduction block 4 contacts the guide slider 3 to achieve the purpose of shock absorption and noise reduction. At the same time, the limiting groove 14 of the noise reduction block 4 can fit with the neoprene rubber buffer head 17 of the guide slider 3, which helps to reduce impact vibration and impact noise and improve the driving comfort of the user.

Claims

1. A noise reduction and limiting structure for an automobile steering column, comprising an upper column (1), a lower column (2), a guide slider (3), and a noise reduction block (4), wherein the upper column (1) is slidably mounted inside the lower column (2), and a guide sliding hole (5) is provided on the circumference of the lower column (2), and the guide slider (3) is slidably mounted inside the guide sliding hole (5), characterized in that: The guide slider (3) is connected to the upper column (1) by rivets. The lower column (2) on both sides of the guide slide hole (5) is fixed with a mounting seat (11) by bolts (12). The mounting seat (11) is fitted with a noise reduction block (4). The noise reduction block (4) extends into the guide slide hole (5). The noise reduction block (4) extending into the guide slide hole (5) is set in correspondence with the guide slider (3) so as to reduce vibration and noise for the noise reduction block (4).

2. The noise reduction stopper structure for a steering column of a vehicle according to claim 1, characterized in that: The guide slider (3) is a rectangular body with an oval cross section. A clearance groove (6) is provided in the center of the guide slider (3). A sleeve (7) is integrally designed in the clearance groove (6). One end of the sleeve (7) extends to the outside of the guide slider (3). Multiple claws (8) are provided on the end of the sleeve (7) extending the guide slider (3) to the outside. Buffer holes (9) are provided at both ends of the guide slider (3). A buffer slit (10) is provided on the guide slider (3) on one side of the buffer hole (9).

3. The noise reduction stopper structure for a steering column of a vehicle according to claim 1, characterized in that: The upper tube column (1) is provided with a locking hole corresponding to the guide slider (3).

4. The noise reduction stopper structure for a steering column of a vehicle according to claim 1, characterized in that: The mounting base (11) is a plate-shaped body. One end of the mounting base (11) is provided with a fixing hole, and the other end of the mounting base (11) is provided with a positioning hole (13). The positioning hole (13) is a stepped hole, and the bottom surface of the mounting base (11) is provided with a limiting boss (18).

5. The noise reduction stopper structure for a steering column of a vehicle according to claim 1, characterized in that: The noise reduction block (4) is a rectangular body with an "L" shaped cross section. One end of the noise reduction block (4) is provided with a limiting groove (14), which is arc-shaped. The other end of the noise reduction block (4) is provided with a protrusion (15), which is "T" shaped in cross section. The protrusion (15) is engaged with the positioning hole (13) of the mounting base (11).

6. The noise reduction and limiting structure for an automotive steering column according to claim 1, characterized in that: The guide slider (3) is oval in shape, and a rivet hole (16) is provided in the center of the guide slider (3). Neoprene buffer heads (17) are fixed at both ends of the guide slider (3). The neoprene buffer heads (17) are arc-shaped.

Images