Anti-friction auxiliary equipment for roller shutter door
By installing friction-proof auxiliary equipment of support frame, roller, damper and buffer spring on the roller shutter door, the friction problem between the roller shutter door and the door frame is solved, and the effect of silentness and life extension is achieved.
Patent Information
- Application Number
- CN202422135518.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-02
AI Technical Summary
During operation, existing roller shutter doors are friction with the door frame due to installation errors and wear, causing noise and reduced service life.
A friction-proof auxiliary device is designed, including a support frame, mounting block, roller, damper and cushioning spring. It fits with the roller and roller door, and uses the damper and cushioning spring to cushion the swing force of the roller door to prevent contact with the door frame.
Effectively reduce friction between roller shutter doors and door frames, reduce noise, extend the service life of the equipment, and clean up dust to improve user experience.
Smart Images

Figure CN223202997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling shutter door auxiliary equipment, in particular to an anti-friction auxiliary equipment for rolling shutter doors. Background Art
[0002] With the development of society, rolling shutter doors have been widely used in many places such as commercial shops, garages, factories, etc. Rolling shutter doors have the advantages of saving space, convenient operation, and beautiful appearance, which can effectively ensure the safety and privacy of the place.
[0003] However, existing rolling shutter doors present several operational issues. Due to installation errors and wear and tear from long-term use, rolling shutter doors can come into contact and rub against the door frame during movement. This friction not only creates a harsh noise, disturbing the surrounding environment, but also wears out both the door and the door frame, reducing their service life. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an anti-friction auxiliary device for a rolling door.
[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: an anti-friction auxiliary device for a rolling shutter door, comprising a door frame and a slide groove provided inside the door frame, two symmetrically distributed support frames being movably installed inside the slide groove, a mounting block being movably installed inside the support frame, and a roller being movably installed on the mounting block;
[0006] A buffer component is installed between the support frame and the installation block, and the buffer component can play a buffering role.
[0007] Furthermore: the buffer assembly includes a damper and a buffer spring. Two dampers are fixedly installed between the support frame and the mounting block, and the damper is sleeved with a buffer spring.
[0008] Furthermore: the outer wall of the mounting block is fixedly connected to a mounting shaft, two bearings are fixedly mounted on the mounting shaft, and a mounting hole corresponding to the outer ring of the bearing is opened inside the roller.
[0009] Furthermore: the adjacent ends of the two support frames are fixedly connected with a connecting block, and the two connecting blocks can be spliced together. The interior of the connecting block is provided with a screw hole, and the interior of the screw hole is installed with a bolt.
[0010] Furthermore: the outer wall of the roller is provided with anti-slip grooves.
[0011] Further: brushes are fixedly connected to the outer walls of the two support frames.
[0012] The utility model has the following beneficial effects:
[0013] Compared with the prior art, the utility model provides a support frame, a mounting block, a roller, a damper, and a buffer spring. When in use, the rolling shutter door is installed between the two support frames, so that the rollers can fit on both sides of the outer wall of the rolling shutter door, preventing the rolling shutter door from contacting the door frame. When the rolling shutter door moves up and down, the rollers can rotate along with it. If the rolling shutter door swings back and forth due to inertia during movement, the swinging force will be transmitted to the mounting block through the roller. Then, the damper and buffer spring between the support frame and the mounting block can play a buffering role, preventing the rolling shutter door from hitting the door frame. The utility model can prevent the rolling shutter door from contacting the door frame, reduce the impact on the surrounding environment, and increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of the utility model from a first perspective;
[0015] Figure 2 This is a schematic diagram of the structure of the utility model from a second perspective;
[0016] Figure 3 This is an enlarged structural diagram of the support frame in the utility model;
[0017] Figure 4 It is a schematic diagram of the explosion structure of the utility model.
[0018] Legend:
[0019] 1. Door frame; 101. Slide groove; 2. Support frame; 201. Connecting block; 202. Screw hole; 203. Bolt; 3. Mounting block; 4. Roller; 401. Anti-slip groove; 5. Buffer assembly; 501. Damper; 502. Buffer spring; 6. Mounting shaft; 7. Bearing; 8. Mounting hole; 9. Brush. DETAILED DESCRIPTION
[0020] Reference Figure 1-4 The utility model provides an anti-friction auxiliary device for a rolling door: it includes a door frame 1 and a slide groove 101 opened inside the door frame 1, two symmetrically distributed support frames 2 are movably installed inside the slide groove 101, and a mounting block 3 is movably installed inside the support frame 2, and a roller 4 is movably installed on the mounting block 3; a buffer component 5 is installed between the support frame 2 and the mounting block 3, and the buffer component 5 can play a buffering role.
[0021] When in use, the two support frames 2 are installed in the slide groove 101, and then the rolling shutter door is installed between the two support frames 2. When in use, the rollers 4 can be attached to both sides of the outer wall of the rolling shutter door to prevent the rolling shutter door from contacting the door frame 1. When the rolling shutter door moves up and down, the rollers 4 can rotate together, and the rolling shutter door will swing back and forth during the movement. At this time, the buffer component 5 can absorb the impact force generated by the movement of the rolling shutter door, thereby extending the service life of the equipment.
[0022] The buffer assembly 5 includes a damper 501 and a buffer spring 502 . Two dampers 501 are fixedly installed between the support frame 2 and the mounting block 3 , and the buffer spring 502 is sleeved on the damper 501 .
[0023] When the rolling door is in use and sways during movement, the force will be transmitted to the mounting block 3 through the roller 4. At this time, the damper 501 and the buffer spring 502 between the support frame 2 and the mounting block 3 can play a buffering role.
[0024] The outer wall of the mounting block 3 is fixedly connected with a mounting shaft 6 , on which two bearings 7 are fixedly mounted. The interior of the roller 4 is provided with a mounting hole 8 corresponding to the outer ring of the bearing 7 .
[0025] When in use, the roller 4 is mounted on the mounting shaft 6 via the bearing 7. The characteristics of the bearing 7 reduce the friction force during the rotation of the roller 4, allowing the roller 4 to rotate more smoothly.
[0026] The adjacent ends of the two support frames 2 are fixedly connected with a connecting block 201 , and the two connecting blocks 201 can be spliced together. The interior of the connecting block 201 is provided with a screw hole 202 , and the interior of the screw hole 202 is installed with a bolt 203 .
[0027] When in use, the two support frames 2 are placed inside the slide groove 101 , the connecting blocks 201 are spliced together, and then the support frames 2 are fixed to the door frame 1 by bolts 203 , so that the two support frames 2 can be fixed in the slide groove 101 .
[0028] The outer wall of the roller 4 is provided with anti-slip grooves 401 .
[0029] When in use, the anti-skid grooves 401 can prevent the roller 4 from slipping when the rolling door moves.
[0030] Brushes 9 are fixedly connected to the outer walls of the two support frames 2 .
[0031] When the shutter door moves, the dust on both sides of the shutter door can be cleaned when passing by the brush 9 to prevent dust from entering the interior of the equipment and causing damage to the equipment.
[0032] Working principle: First, place the two support frames 2 inside the slide groove 101, splice the connecting blocks 201 together, and then fix the support frames 2 to the door frame 1 with bolts 203. The two support frames 2 can be fixed in the slide groove 101. Then, the rolling door is installed between the two support frames 2 so that the rollers 4 can fit on both sides of the outer wall of the rolling door to prevent the rolling door from contacting the door frame 1.
[0033] When the rolling door moves up and down, the roller 4 can rotate along with it. If the rolling door swings back and forth due to inertia during movement, the swinging force will be transmitted to the mounting block 3 through the roller 4, and then through the damper 501 and buffer spring 502 between the support frame 2 and the mounting block 3, a buffering effect can be played to prevent the rolling door from hitting the door frame 1.
[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An anti-friction auxiliary device for a rolling door, comprising a door frame (1) and a sliding groove (101) provided inside the door frame (1), characterized in that: Two symmetrically distributed support frames (2) are movably mounted inside the chute (101), a mounting block (3) is movably mounted inside the support frame (2), and a roller (4) is movably mounted on the mounting block (3); A buffer component (5) is installed between the support frame (2) and the mounting block (3), and the buffer component (5) can play a buffering role; The buffer assembly (5) comprises a damper (501) and a buffer spring (502); two dampers (501) are fixedly mounted between the support frame (2) and the mounting block (3); and the buffer spring (502) is sleeved on the damper (501).
2. The anti-friction auxiliary device for a rolling door according to claim 1, characterized in that: The end of the buffer spring (502) is fixedly connected to a stopper (504), and the stopper (504) is located at the front end of the mounting block (3).
3. The anti-friction auxiliary device for a rolling door according to claim 1, characterized in that: The adjacent ends of the two support frames (2) are fixedly connected with a connecting block (201), and the two connecting blocks (201) can be spliced together. The connecting block (201) is provided with a screw hole (202) inside, and a bolt (203) is installed inside the screw hole (202).
4. The anti-friction auxiliary device for a rolling door according to claim 1, characterized in that: The outer wall of the roller (4) is provided with anti-slip grooves (401).
5. The anti-friction auxiliary device for a rolling door according to claim 1, characterized in that: Brushes (9) are fixedly connected to the outer walls of the two support frames (2).