CN217671979U - Pulley with damping function outside - Google Patents
Pulley with damping function outside Download PDFInfo
- Publication number
- CN217671979U CN217671979U CN202221310415.5U CN202221310415U CN217671979U CN 217671979 U CN217671979 U CN 217671979U CN 202221310415 U CN202221310415 U CN 202221310415U CN 217671979 U CN217671979 U CN 217671979U
- Authority
- CN
- China
- Prior art keywords
- damping spring
- wheel
- steel ball
- damping
- supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
A pulley with an external damping function belongs to the technical field of trundles. Including installation screw rod, supporting rack, wheel back shaft, the below of installation screw rod is fixed mutually with the upper portion of supporting rack, the lower part and the wheel cover of supporting rack are established on the wheel back shaft, and characteristics are: the wheel is characterized in that a mounting hole is formed in the arc surface of the lower portion of the bearing frame facing the circumferential surface of the wheel, a damping spring part is mounted in the mounting hole and comprises a damping spring seat, a damping spring and a ball, the damping spring seat is fixed in the mounting hole of the bearing frame, the damping spring is mounted in the damping spring seat, the ball is located between the wheel and the damping spring, and the ball is abutted to the wheel under the spring force action of the damping spring. The advantages are that: the non-load self-locking function is realized, the problem that the car repairing bench products can easily slide under the condition of no external force is solved, and the non-load self-locking function can freely roll when being used under a load.
Description
Technical Field
The utility model belongs to the technical field of the truckle, concretely relates to outside has damping function's pulley.
Background
The existing car repair bench products can freely slide in daily use, so that a user has the risk of sitting empty, unnecessary troubles are brought to workers, and even unexpected injuries are brought. Therefore, in the industry, in order to avoid the situation, the wheels of the products such as the car repairing stools are improved, and the wheels are locked. However, since the locked wheel needs to be unlocked again during use, which is troublesome to operate, it is desirable to design a device that can be flexibly switched between unlocking and locking. For example, the chinese invention patent publication No. CN106585274a discloses a "damping type positioning universal wheel", which includes an installation shaft, a support frame, a support wheel and a locking structure, wherein a positioning assembly is installed at a joint of the installation shaft and the support frame, the positioning assembly includes a fixed block fixedly installed in the support frame, a directional slider connected with the fixed block by a compression spring and disposed above the fixed block, and a universal small bowl installed between the directional slider and the lower surface of the support frame, a first steel ball is installed between the universal small bowl and the lower surface of the support frame, and the universal small bowl is fixedly connected with the installation shaft; the directional sliding block and the small universal bowl are provided with a protrusion and a groove which are matched with each other, and after the protrusion is matched with the groove, the directional sliding block and the small universal bowl are circumferentially fixed. The truckle in this public technique can realize switching between ordinary truckle and the universal wheel, but, this damping formula location universal wheel has changed whole universal wheel subassembly, and spare part is in large quantity and the structure is complicated, and difficult assembly changes great to the product, and the cost of manufacture is high, still needs manual pinning the universal wheel, does not have the function of no-load auto-lock.
In view of the above-mentioned prior art, there is a need for a reasonable improvement of the wheel structure of the existing car bench products. The applicant has made an advantageous design for this purpose, in the context of which the solution to be described below is made.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an outside has damping function's pulley, it has realized no-load self-locking function, has both solved and has repaired the car stool class product can gliding problem easily under the condition that does not have external force, can freely roll when the load uses again.
The utility model aims at reaching like this, an outside has damping function's pulley, including mounting screw, supporting rack, wheel back shaft, mounting screw's below is fixed mutually with the upper portion of supporting rack, the lower part and the wheel cover of supporting rack are established on the wheel back shaft, and characteristics are: the wheel is characterized in that a mounting hole is formed in the arc surface of the lower portion of the bearing frame facing the circumferential surface of the wheel, a damping spring part is mounted in the mounting hole and comprises a damping spring seat, a damping spring and a ball, the damping spring seat is fixed in the mounting hole of the bearing frame, the damping spring is mounted in the damping spring seat, the ball is located between the wheel and the damping spring, and the ball is abutted to the wheel under the spring force action of the damping spring.
In a specific embodiment of the present invention, the mounting screw has a steel ball upper supporting piece, a supporting frame, and a steel ball lower supporting piece sleeved in sequence from top to bottom, wherein a first steel ball is installed between the steel ball upper supporting piece and the supporting frame, and a second steel ball is installed between the supporting frame and the steel ball lower supporting piece.
In another specific embodiment of the present invention, the steel ball upper support piece, the support frame, and the steel ball lower support piece are fixed to the mounting screw by riveting.
In another specific embodiment of the present invention, the damping spring seat is fixedly welded to the support frame.
The utility model discloses owing to adopted above-mentioned structure, the beneficial effect who has: the damping spring component is fixed on the lower part of the supporting frame to form an independent pulley component with a damping function, the damping is applied to the wheel externally, the other structures of the vehicle repairing bench are not required to be improved, the change is small, the self-locking function can be realized through the damping spring component during no-load, the structure is simple and easy to realize, the manufacture and the assembly are very simple and convenient, and the cost is low.
Drawings
Fig. 1 is an exploded view of the pulley of the present invention.
Fig. 2 is a partial cross-sectional view of the pulley of the present invention.
Fig. 3 is a right side view of fig. 2.
In the figure: 1. installing a screw rod; 2. a supporting sheet is arranged on the steel ball; 3. a support frame 31, a mounting hole; 4. a steel ball lower support sheet; 5. a wheel; 6. a wheel support shaft; 7. a first steel ball; 8. a second steel ball; 9. damping spring part, 91 damping spring seat, 92 damping spring, 93 ball.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the description of the embodiments is not intended to limit the technical solutions, and any changes made in the form of the present invention rather than the essential changes should be considered as the protection scope of the present invention.
In the following description, any concept relating to the directions or orientations of up, down, left, right, front, and rear is based on the position shown in the corresponding drawings, and thus should not be construed as particularly limiting the technical solution provided by the present invention.
Referring to fig. 1 to 3, the present invention relates to a pulley with an external damping function, including an installation screw 1, a supporting piece 2 on a steel ball, a supporting frame 3, a supporting piece 4 under the steel ball, a wheel 5, and a wheel supporting shaft 6, wherein a board surface (not shown in the figure) of a vehicle repairing stool is installed above the installation screw 1, and the lower part of the installation screw 1 is fixed to the upper part of the supporting frame 3. The lower part of the supporting frame 3 and the wheels 5 are sleeved on the wheel supporting shaft 6.
The mounting screw 1 is sequentially sleeved with an upper steel ball supporting piece 2, a supporting frame 3 and a lower steel ball supporting piece 4 from top to bottom. A first steel ball 7 is arranged between the steel ball upper supporting sheet 2 and the supporting frame 3, and a second steel ball 8 is arranged between the supporting frame 3 and the steel ball lower supporting sheet 4. The steel ball upper supporting sheet 2, the supporting frame 3 and the steel ball lower supporting sheet 4 are fixed on the mounting screw rod 1 through riveting.
The circular arc surface of the lower part of the supporting frame 3 facing the circumferential surface of the wheel 5 is provided with mounting holes 31, the number of the mounting holes 31 is not limited, and two mounting holes are illustrated in the embodiment. A damping spring part 9 is respectively installed in each installation hole 31, the damping spring part 9 comprises a damping spring seat 91, a damping spring 92 and a ball 93, and the damping spring seat 91 is positioned in the installation hole 31 of the support frame 3 and fixedly welded with the support frame 3. The damping spring 92 is installed in the damping spring seat 91, the ball 93 is located between the wheel 5 and the damping spring 92, and the ball 93 abuts against the wheel 5 under the spring force of the damping spring 92.
When the wheel 5 is installed, a force perpendicular to the damping spring seat 91 is given to the wheel 5 in a mode of compressing the damping spring 92, the damping required to be overcome by the rotation of the wheel 5 is increased by the force, the damping size is controlled by the damping spring 92, the damping required to be overcome by the rotation of the wheel 5 in the no-load state is overcome, and the no-load self-locking function is realized. When loaded, the load force overcomes the damping of the damping spring 92, thereby allowing the wheel 5 to rotate freely.
Claims (4)
1. The utility model provides an outside has damping function's pulley, includes installation screw rod (1), supporting rack (3), wheel (5), wheel back shaft (6), the below of installation screw rod (1) is fixed mutually with the upper portion of supporting rack (3), the lower part and the wheel (5) cover of supporting rack (3) are established on wheel back shaft (6), its characterized in that: mounting hole (31) have been seted up on the arc surface towards wheel (5) circumferential surface of supporting rack (3) lower part, mounting hole (31) in install damping spring part (9), damping spring part (9) including damping spring seat (91), damping spring (92), ball (93), damping spring seat (91) be fixed in mounting hole (31) of supporting rack (3), damping spring (92) install in damping spring seat (91), ball (93) be located between wheel (5) and damping spring (92), under the spring force effect of damping spring (92), ball (93) support and lean on wheel (5).
2. The pulley with the damping function on the outside according to claim 1, wherein: the mounting screw rod (1) is sequentially sleeved with an upper steel ball supporting piece (2), a supporting frame (3) and a lower steel ball supporting piece (4) from top to bottom, a first steel ball (7) is mounted between the upper steel ball supporting piece (2) and the supporting frame (3), and a second steel ball (8) is mounted between the supporting frame (3) and the lower steel ball supporting piece (4).
3. The pulley with the damping function on the outside according to claim 2, wherein: the steel ball upper supporting piece (2), the supporting frame (3) and the steel ball lower supporting piece (4) are fixed on the mounting screw rod (1) through riveting.
4. The pulley with the damping function on the outside according to claim 1, wherein: and the damping spring seat (91) is fixedly welded with the supporting frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221310415.5U CN217671979U (en) | 2022-05-30 | 2022-05-30 | Pulley with damping function outside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221310415.5U CN217671979U (en) | 2022-05-30 | 2022-05-30 | Pulley with damping function outside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217671979U true CN217671979U (en) | 2022-10-28 |
Family
ID=83703999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221310415.5U Active CN217671979U (en) | 2022-05-30 | 2022-05-30 | Pulley with damping function outside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217671979U (en) |
-
2022
- 2022-05-30 CN CN202221310415.5U patent/CN217671979U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20040090100A1 (en) | Seat of vehicle | |
| WO2006041570A1 (en) | Moveable seat with tapered swivel assembly and cable track wheel | |
| CN217671979U (en) | Pulley with damping function outside | |
| CN201633580U (en) | Headrest guide sleeve and seat using same | |
| WO2004043728A3 (en) | Seat assembly with tunable tie bar | |
| CN217294133U (en) | Pulley with damping function inside | |
| CN217039159U (en) | Outdoor umbrella center pillar fixed pin with self-locking function | |
| CN107933385A (en) | A kind of seat and vehicle | |
| CN207725259U (en) | A kind of passenger seat floor lock assembly | |
| CN207826028U (en) | A kind of seat and vehicle | |
| CN219404265U (en) | Multifunctional vehicle repairing plate | |
| CN213933131U (en) | Wheel fixing device | |
| CN110368642A (en) | Co-axially fixed treadmill | |
| CN215706751U (en) | Conveniently assembled bull-dozer thrust wheel | |
| CN219895149U (en) | Waist propping device | |
| CN212529645U (en) | Multifunctional sofa sleeper backrest | |
| CN219687200U (en) | Vehicle-mounted rear seat support | |
| CN220374360U (en) | Zero gravity seat skeleton frame adjusting structure and car | |
| CN220053612U (en) | Leg support bracket and vehicle with same | |
| CN216602160U (en) | Rotary table | |
| CN219904125U (en) | Cab lock bolt bracket for new energy vehicle | |
| CN219548681U (en) | Detachable alloy hinge | |
| CN210707045U (en) | A vehicle that is used for handrail mechanism of vehicle and has it | |
| CN219789980U (en) | Automobile seat foot support | |
| CN214001426U (en) | Seat assembly for vehicle and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |