Damping nut for automobile steering column
By designing shock absorbing nuts with polyurethane casing and snap ring tooth block structure on the vehicle steering column, combined with the locking component, the problem of abnormal noise during vibration of traditional nuts is solved, achieving more stable and comfortable vehicle driving, and improving the reliability of the nuts.
Patent Information
- Application Number
- CN202422402924.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The nuts of the steering column of the traditional automobile have little attenuation effect during the vehicle's vibration, which is prone to abnormal noise, resulting in unstable and uncomfortable driving of the vehicle.
A shock absorbing nut for automotive steering column is designed, using a polyurethane sleeve and a snap ring tooth block structure, combined with a locking assembly, to reduce vibration through the micro deformation of the polyurethane sleeve, and to increase friction and prevent loosening by using silicone pads and anti-slip pads.
It effectively reduces the overall vibration amplitude of the car steering column, avoids abnormal noise, improves the stability and comfort of the vehicle, and enhances the reliability of the use of the nut.
Smart Images
Figure CN223215572U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuts, in particular to a shock-absorbing nut used for an automobile steering column. Background Art
[0002] When installing a steering column on a vehicle, automobile manufacturers primarily secure it via several mounting points on the column itself. Traditionally, steering columns are mounted on a central bracket and a lower bracket. The lower bracket utilizes a round pin, with bolts passing through the pin's center hole to secure the column. Vibrations transmitted from the bottom to the top during driving are transmitted from the vehicle. Due to the excessive rigidity of the round pin, this vibration attenuation is minimal, which can easily cause unusual vehicle noise. To address this issue, a technological innovation has been developed based on existing nuts for steering columns. Utility Model Content
[0003] The purpose of the utility model is to provide a shock-absorbing nut for an automobile steering column, so as to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a shock-absorbing nut for a steering column of an automobile, comprising:
[0005] A nut, wherein a retaining ring is provided at the bottom of the nut, tooth blocks are evenly provided on the outer side wall of the retaining ring, a polyurethane sleeve is provided at the bottom of the nut, an annular groove is provided at the top of the polyurethane sleeve, tooth grooves are evenly provided on the inner side wall of the annular groove, the retaining ring is fixed in the annular groove by adhesive, the tooth blocks are fixed in the tooth groove by adhesive, and a locking assembly is placed inside the nut.
[0006] Preferably, the locking assembly includes a slide plate, a group of anti-slip pads are provided on the opposite sides of the two groups of slide plates, a group of silicone pads are provided on the opposite sides of the two groups of slide plates, and a threaded hole is opened on the top of the slide plate, and a cross bolt is screwed into the threaded hole.
[0007] Preferably, two groups of countersunk holes are evenly opened on the top of the nut, and a group of sliding grooves are opened through the front and rear sides of the nut. The countersunk holes are connected to the sliding grooves and correspond to the threaded holes of the slide plate.
[0008] Preferably, the slide plate is arranged in the slide groove of the nut, the outer side wall of the silicone pad is flush with the outer side wall of the nut, and the anti-slip pad is located in the bolt hole of the nut.
[0009] Preferably, the cross bolt is arranged in the countersunk hole of the nut, and the bottom of the cross bolt passes through the countersunk hole and is screwed into the threaded hole of the slide plate.
[0010] Preferably, the bottom of the nut and the top of the polyurethane sleeve are fixed by an adhesive, and the diameter of the nut is the same as the diameter of the polyurethane sleeve.
[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0012] The utility model can make the fixed connection between the polyurethane sleeve and the nut more stable through the mutual cooperation of the clamping ring and the tooth block. After the socket on the steering column of the automobile is sleeved on the stud on the frame, the nut is screwed to the stud on the frame. At this time, benefiting from the good shock absorption and buffering performance of the polyurethane sleeve, when the vibration of the vehicle is transmitted from bottom to top to the steering column of the automobile, the vibration is weakened and eliminated through the micro-deformation of the polyurethane sleeve, thereby reducing the overall vibration amplitude of the steering column of the automobile, avoiding the generation of abnormal noise, and making the vehicle stable and comfortable during driving.
[0013] After the nut is screwed and tightened with the stud on the frame, the slide plate is pressed inward to drive the anti-skid pad to fit tightly with the outer wall of the stud on the frame. The slide plate is fixed in the sliding groove of the nut using a cross bolt. The anti-skid pad can increase the friction between the nut and the stud on the frame, thereby preventing the nut from loosening after installation, thereby improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural schematic diagram of a shock-absorbing nut for an automobile steering column according to the present invention;
[0015] Figure 2 This is a right side sectional view of a shock absorbing nut for an automobile steering column according to the present invention;
[0016] Figure 3 The utility model is a top cross-sectional view of a shock absorbing nut used for an automobile steering column.
[0017] In the figure: 1. nut; 11. polyurethane sleeve; 12. cross bolt; 13. silicone pad; 14. slide plate; 15. anti-slip pad; 16. retaining ring; 17. tooth block. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] See also Figure 1-Figure 3A shock-absorbing nut for an automobile steering column comprises a nut 1, a snap ring 16 is fixedly provided at the bottom of the nut 1, a tooth block 17 is evenly fixedly provided on the outer wall of the snap ring 16, a polyurethane sleeve 11 is provided at the bottom of the nut 1, an annular groove is provided at the top of the polyurethane sleeve 11, and tooth grooves are evenly provided on the inner wall of the annular groove, the snap ring 16 is fixed in the annular groove by an adhesive, and the tooth block 17 is fixed in the tooth groove by an adhesive. The mutual cooperation between the snap ring 16 and the tooth block 17 can make the fixed connection between the polyurethane sleeve 11 and the nut 1 more stable. When the socket on the automobile steering column is connected After the studs on the frame, the nut 1 is screwed to the studs on the frame. At this time, benefiting from the good shock absorption and buffering performance of the polyurethane sleeve 11, when the vibration of the vehicle is transmitted from bottom to top to the steering column of the car, the vibration is weakened and eliminated through the micro-deformation of the polyurethane sleeve 11, thereby reducing the overall vibration amplitude of the steering column of the car, avoiding the generation of abnormal noise, and making the vehicle stable and comfortable during driving. A locking assembly is placed inside the nut 1. The locking assembly includes a slide plate 14. A set of anti-slip pads 15 are fixedly provided on the opposite sides of the two sets of slide plates 14, and a set of silicone pads 13 are fixedly provided on the opposite sides of the two sets of slide plates 14. A threaded hole is provided on the top of the slide plate 14, and a cross bolt 12 is screwed into the threaded hole. Two sets of countersunk holes are evenly provided on the top of the nut 1. A set of slide grooves are penetrated on both the front and rear sides of the nut 1. The countersunk holes are connected to the slide grooves and correspond to the threaded holes of the slide plate 14. The slide plate 14 is slidably set in the slide groove of the nut 1. The outer wall of the silicone pad 13 is flush with the outer wall of the nut 1. The anti-slip pad 15 is located in the bolt hole of the nut 1. The cross bolt 12 is rotatably set in the countersunk hole of the nut 1. The bottom of the cross bolt 12 passes through the countersunk hole and is screwed to the threaded hole of the slide plate 14. When the nut 1 is screwed to the stud on the frame, After tightening, press the slide plate 14 inward to drive the anti-skid pad 15 to fit tightly against the outer wall of the stud on the frame. The silicone pad 13 can improve the comfort when pressing the slide plate 14. The cross bolt 12 is passed through the countersunk hole of the nut 1 and is screwed to the threaded hole of the slide plate 14 to fix the slide plate 14 in the slide groove of the nut 1. The anti-skid pad 15 can increase the friction between the nut 1 and the stud on the frame to prevent the nut 1 from loosening after installation, thereby improving the reliability of use. The bottom of the nut 1 is fixed to the top of the polyurethane sleeve 11 by adhesive, and the diameter of the nut 1 is the same as the diameter of the polyurethane sleeve 11.
[0020] Working principle: Through the mutual cooperation of the snap ring 16 and the tooth block 17, the fixed connection between the polyurethane sleeve 11 and the nut 1 can be made more stable. After the socket on the steering column of the car is sleeved on the stud on the frame, the nut 1 is screwed to the stud on the frame. At this time, benefiting from the good shock absorption and buffering performance of the polyurethane sleeve 11, when the vibration of the vehicle is transmitted from bottom to top to the steering column of the car, the vibration is weakened and eliminated through the micro-deformation of the polyurethane sleeve 11, thereby reducing the overall vibration amplitude of the steering column of the car and avoiding the generation of abnormal noise, making the vehicle more stable when driving. Stable and comfortable during driving. After the nut 1 is screwed and tightened with the stud on the frame, the slide plate 14 is pressed inward to drive the anti-skid pad 15 to fit tightly with the outer wall of the stud on the frame. The silicone pad 13 can improve the comfort when pressing the slide plate 14. The cross bolt 12 is passed through the countersunk hole of the nut 1 and screwed with the threaded hole of the slide plate 14 to fix the slide plate 14 in the slide groove of the nut 1. The anti-skid pad 15 can increase the friction between the nut 1 and the stud on the frame, thereby preventing the nut 1 from loosening after installation, thereby improving reliability.
Claims
1. A shock absorbing nut for a car steering column, characterized in that: include: A nut (1) is provided with a snap ring (16) at the bottom of the nut (1), and tooth blocks (17) are evenly provided on the outer side wall of the snap ring (16). A polyurethane sleeve (11) is provided at the bottom of the nut (1), and an annular groove is provided at the top of the polyurethane sleeve (11), and tooth grooves are evenly provided on the inner side wall of the annular groove. The snap ring (16) is fixed in the annular groove by adhesive, and the tooth block (17) is fixed in the tooth groove by adhesive. A locking assembly is placed inside the nut (1).
2. The shock absorbing nut for an automobile steering column according to claim 1, characterized in that: The locking assembly comprises a slide plate (14), a group of anti-slip pads (15) are provided on opposite sides of the two groups of slide plates (14), a group of silicone pads (13) are provided on opposite sides of the two groups of slide plates (14), a threaded hole is provided on the top of the slide plate (14), and a cross bolt (12) is screwed into the threaded hole.
3. The shock absorbing nut for an automobile steering column according to claim 2, characterized in that: Two groups of countersunk holes are evenly opened on the top of the nut (1), and a group of sliding grooves are opened through the front and back sides of the nut (1). The countersunk holes are connected to the sliding grooves and correspond to the threaded holes of the slide plate (14).
4. The shock absorbing nut for an automobile steering column according to claim 3, characterized in that: The slide plate (14) is arranged in the slide groove of the nut (1), the outer wall of the silicone pad (13) is flush with the outer wall of the nut (1), and the anti-slip pad (15) is located in the bolt hole of the nut (1).
5. The shock absorbing nut for an automobile steering column according to claim 4, characterized in that: The cross bolt (12) is arranged in the countersunk hole of the nut (1), and the bottom of the cross bolt (12) passes through the countersunk hole and is screwed to the threaded hole of the slide plate (14).
6. The shock absorbing nut for an automobile steering column according to claim 1, characterized in that: The bottom of the nut (1) and the top of the polyurethane sleeve (11) are fixed by adhesive, and the diameter of the nut (1) is the same as that of the polyurethane sleeve (11).