Industrial lift door with buffering effect

By introducing buffer and support devices into industrial overhead doors, and utilizing damping rods, springs, and rubber components, the impact problem of steel rope breakage in overhead doors has been solved, achieving door protection and structural stability.

CN224379727UActive Publication Date: 2026-06-19青岛悦益门业有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
青岛悦益门业有限公司
Filing Date
2025-05-21
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When the steel cable of an existing industrial overhead door breaks, the door will directly impact the bottom of the inner wall of the support frame, causing damage to the door.

Method used

An industrial lifting door with a buffering effect was designed, including a buffer device and a support device. The buffer device consists of a rectangular plate, a damping rod, a spring, and a rubber block, which is used to provide a buffering effect when the lifting door slides. The support device restricts the deformation of the support frame through components such as a rubber plate, a round rod, and a damping rod.

🎯Benefits of technology

Effectively prevents the lifting door from directly impacting the inner wall of the support frame, protecting the door body and reducing damage. Rubber blocks and strips are used to seal gaps to prevent wear, and the support device prevents the frame from deforming.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224379727U_ABST
    Figure CN224379727U_ABST
Patent Text Reader

Abstract

This utility model provides an industrial lifting door with a buffering effect, relating to the field of industrial lifting door technology. The utility model includes a support frame, with a lifting door body slidably connected to the inner wall of the support frame. A bidirectional motor is installed on the side of the support frame away from the ground. A rotating roller is rotatably inserted into the top side of the support frame. The bidirectional motor and the rotating roller are connected together by bearings. A steel rope is fixedly connected to the surface of the rotating roller, with the end of the steel rope away from the rotating roller fixedly connected to the side of the lifting door body. A buffer device is installed inside the support frame near the ground. The buffer device includes a rectangular plate, and a first damping rod is fixedly connected to the bottom of the inner wall of the support frame. When the buffer device is used, when the lifting door body slides to the bottom of the inner wall of the support frame, the lifting door body is pressed against the top of the rubber block, thereby compressing the first spring and the first damping rod, thus achieving a buffering effect.
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Description

Technical Field

[0001] This utility model relates to the field of industrial overhead doors, and in particular to an industrial overhead door with a buffering effect. Background Technology

[0002] An industrial overhead door is a device used in industry as a warehouse door. When using an industrial overhead door, a bidirectional motor drives a rotating roller to rotate, which in turn winds a steel rope around the surface of the roller. This allows the main body of the overhead door to slide along the inner wall of the support frame. When it is time to close the door, the bidirectional motor drives the rotating roller to rotate in the opposite direction. Under the traction of gravity, the industrial overhead door is fixed to the inner wall of the support frame on one side of the wall, which allows for the efficient use of the industrial overhead door.

[0003] The inventor discovered in daily work that industrial overhead doors still have at least the following problems: When using an industrial overhead door, a bidirectional motor drives a rotating roller to rotate, which in turn winds a steel rope around the surface of the roller. This allows the main body of the overhead door to slide along the inner wall of the support frame. When closing the door, the bidirectional motor drives the rotating roller to rotate in the opposite direction. Under the traction of gravity, the industrial overhead door is fixed to the inner wall of the support frame on one side of the wall. This allows the industrial overhead door to be used well. However, in actual use, when the steel rope breaks, the overhead door will directly hit the bottom of the inner wall of the support frame, which may damage the industrial door. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an industrial lifting door with a buffering effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an industrial lifting door with a buffering effect, comprising a support frame, a lifting door body slidably connected to the inner wall of the support frame, a bidirectional motor disposed on the side of the support frame away from the ground, a rotating roller rotatably inserted on the top side of the support frame, the bidirectional motor and the rotating roller being connected together by bearings, a steel rope fixedly connected to the surface of the rotating roller, the end of the steel rope away from the rotating roller being fixedly connected to the side of the lifting door body, a buffer device disposed inside the support frame near the ground, the buffer device comprising a rectangular plate, a first damping rod fixedly connected to the bottom of the inner wall of the support frame, the top of the first damping rod being fixedly connected to the rectangular plate, a first spring sleeved on the surface of the first damping rod, one end of the first spring being fixedly connected to the bottom of the inner wall of the support frame, the end of the first spring near the rectangular plate being fixedly connected to the bottom of the rectangular plate, a rubber block fixedly connected to the top of the rectangular plate, and the rubber block being disposed at the bottom of the lifting door body.

[0006] The effect achieved by the above components is as follows: when the buffer device is used, when the lifting door body slides to the bottom of the inner wall of the support frame, the lifting door body is pressed against the top of the rubber block, which in turn compresses the first spring and the first damping rod, thus playing a buffering role.

[0007] Preferably, a rubber cylinder is fixedly connected to the bottom of the support frame, and the rubber cylinder is sleeved on the bottom surface of the first damping rod.

[0008] The effect achieved by the above components is that when the rubber cylinder contacts the rectangular plate, the rubber cylinder is squeezed and deformed, which can prevent the bottom of the rectangular plate from directly contacting the bottom of the inner wall of the support frame.

[0009] Preferably, a storage groove is provided at the bottom of the inner wall of the support frame, a movable plate is slidably connected to the inner wall of the storage groove, and a rubber strip is fixedly connected to the top of the movable plate.

[0010] The effect achieved by the above components is that when the bottom of the lifting door body contacts the bottom of the inner wall of the support frame, the bottom of the lifting door body contacts the rubber strip, which can block the gap between the bottom of the inner wall of the support frame and the bottom of the lifting door body through the rubber strip.

[0011] Preferably, a second damping rod is uniformly fixedly connected to the bottom of the inner wall of the storage groove. The end of the second damping rod near the moving plate is fixedly connected to the bottom of the moving plate. A second spring is sleeved on the surface of the second damping rod. One end of the second spring is fixedly connected to the bottom of the inner wall of the storage groove, and the end of the second spring near the moving plate is fixedly connected to the bottom of the moving plate.

[0012] The effect achieved by the above components is that the moving plate is pressed away from the storage groove by the second spring, so that the rubber strip is pressed well against the bottom of the lifting door body.

[0013] Preferably, a support device is provided on one side of the support frame, a connecting frame is fixedly connected to one side of the support frame, and a support block is slidably connected to the inner wall of the connecting frame.

[0014] The effect achieved by the above components is that when using the support device, the support block is slid into the inside of the connecting frame, which can restrict the support block to one side of the support frame, thus preventing the support frame from deforming.

[0015] Preferably, a rubber plate is fixedly connected to one side of the support block, and the rubber plate is slidably inserted through one side of the connecting frame.

[0016] The effect achieved by the above components is to squeeze the rubber plate through one side of the connecting frame, thereby confining the support block inside the connecting frame.

[0017] Preferably, a round rod is fixedly connected to the inner wall of another connecting frame, and the round rod is slidably inserted through and inserted into one side of the support block.

[0018] The effect achieved by the above components is that by passing the round rod through one side of the support block, the connection between the support block and the connecting frame can be made tighter.

[0019] Preferably, a fixing groove is provided on one side of the connecting frame, a fixing strip is slidably connected to the inner wall of the fixing groove, a third damping rod is fixedly connected to one side of the inner wall of the fixing groove, the end of the third damping rod away from the fixing groove is fixedly connected to one side of the fixing strip, a third spring is sleeved on the surface of the third damping rod, one end of the third spring is fixedly connected to one side of the inner wall of the fixing groove, and the end of the third spring near the fixing strip is fixedly connected to one side of the fixing strip.

[0020] The effect achieved by the above components is that the fixing strip is pulled towards the inner wall of the fixing groove by the third spring, which can effectively restrict the fixing strip inside the fixing groove, making it convenient to set the fixing strip on the side of the support block away from the support frame.

[0021] In this invention, by setting a buffer device, when the lifting door body slides to the bottom of the inner wall of the support frame, the lifting door body is pressed against the top of the rubber block, thereby compressing the first spring and the first damping rod, which can play a buffering role. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of an industrial lifting door with a buffering effect is provided for this utility model.

[0023] Figure 2 A three-dimensional structural diagram of the novel rectangular plate proposed in this utility model is provided.

[0024] Figure 3 A three-dimensional structural diagram of the novel movable plate proposed in this utility model is provided.

[0025] Figure 4 A three-dimensional structural diagram of the novel support block proposed in this utility model is provided.

[0026] Legend: 1. Support frame; 2. Lifting door body; 3. Bidirectional motor; 4. Rotating roller; 5. Steel rope; 6. Buffer device; 601. First damping rod; 602. Rectangular plate; 603. First spring; 604. Rubber block; 605. Rubber cylinder; 606. Storage groove; 607. Second damping rod; 608. Second spring; 609. Moving plate; 610. Rubber strip; 7. Support device; 701. Connecting frame; 702. Support block; 703. Rubber plate; 704. Round rod; 705. Fixing groove; 706. Fixing strip; 707. Third damping rod; 708. Third spring. Detailed Implementation

[0027] Example 1, such as Figure 1-4 As shown, an industrial lifting door with a buffering effect is provided. The inner wall of the support frame 1 is slidably connected to the lifting door body 2. A bidirectional motor 3 is installed on the side of the support frame 1 away from the ground. A rotating roller 4 is rotatably inserted on the top side of the support frame 1. The bidirectional motor 3 and the rotating roller 4 are connected together by bearings. A steel rope 5 is fixedly connected to the surface of the rotating roller 4. The end of the steel rope 5 away from the rotating roller 4 is fixedly connected to one side of the lifting door body 2. A buffer device 6 is provided inside the support frame 1 near the ground. When using the industrial lifting door, the bidirectional motor 3 drives the rotating roller 4 to rotate, thereby winding the steel rope 5 around the surface of the rotating roller 4. This controls the sliding of the lifting door body 2 on the inner wall of the support frame 1. When the door needs to be closed, the bidirectional motor 3 drives the rotating roller 4 to rotate in the opposite direction. Under the traction of gravity, the industrial lifting door is fixed in the inner wall of the support frame 1, which allows the industrial lifting door to be used effectively.

[0028] Reference Figure 2 and Figure 3The buffer device 6 includes a rectangular plate 602. A first damping rod 601 is fixedly connected to the bottom of the inner wall of the support frame 1. The top of the first damping rod 601 is fixedly connected to the rectangular plate 602. A first spring 603 is sleeved on the surface of the first damping rod 601. One end of the first spring 603 is fixedly connected to the bottom of the inner wall of the support frame 1, and the end of the first spring 603 near the rectangular plate 602 is fixedly connected to the bottom of the rectangular plate 602. A rubber block 604 is fixedly connected to the top of the rectangular plate 602. The rubber block 604 is installed on the lifting door body 2. At the bottom, when the buffer device 6 is used, when the lifting door body 2 slides to the bottom of the inner wall of the support frame 1, the lifting door body 2 is pressed against the top of the rubber block 604, which in turn compresses the first spring 603 and the first damping rod 601, thus providing a buffering effect. A rubber cylinder 605 is fixedly connected to the bottom of the support frame 1. The rubber cylinder 605 is sleeved on the bottom surface of the first damping rod 601. When the rubber cylinder 605 contacts the rectangular plate 602, the rubber cylinder 605 is squeezed and deformed, thus preventing the bottom of the rectangular plate 602 from being compressed. The bottom of the inner wall of the support frame 1 is directly in contact with the support frame 1. A storage groove 606 is provided at the bottom of the inner wall of the support frame 1. A movable plate 609 is slidably connected to the inner wall of the storage groove 606. A rubber strip 610 is fixedly connected to the top of the movable plate 609. When the bottom of the lifting door body 2 contacts the bottom of the inner wall of the support frame 1, the bottom of the lifting door body 2 contacts the rubber strip 610. This allows the rubber strip 610 to seal the gap between the bottom of the inner wall of the support frame 1 and the bottom of the lifting door body 2. A second barrier is evenly fixedly connected to the bottom of the inner wall of the storage groove 606. The second damping rod 607 is fixedly connected at one end near the moving plate 609 and at the bottom of the moving plate 609. A second spring 608 is sleeved on the surface of the second damping rod 607. One end of the second spring 608 is fixedly connected to the bottom of the inner wall of the storage groove 606. The end of the second spring 608 near the moving plate 609 is fixedly connected to the bottom of the moving plate 609. By pressing the moving plate 609 away from the storage groove 606 through the second spring 608, the rubber strip 610 is well pressed against the bottom of the lifting door body 2.

[0029] Reference Figure 4A support device 7 is provided on one side of the support frame 1. A connecting frame 701 is fixedly connected to one side of the support frame 1. A support block 702 is slidably connected to the inner wall of the connecting frame 701. When using the support device 7, the support block 702 is slid into the interior of the connecting frame 701, thus confining the support block 702 to one side of the support frame 1 and preventing deformation of the support frame 1. A rubber plate 703 is fixedly connected to one side of the support block 702. The rubber plate 703 is slidably inserted through one side of the connecting frame 701. By squeezing the rubber plate 703 through one side of the connecting frame 701, the support block 702 is confined inside the connecting frame 701. A round rod 704 is fixedly connected to the inner wall of the other connecting frame 701. The round rod 704 is slidably inserted through one side of the support block 702. By passing the round rod 704 through one side of the support block 702, the support block 702 and the connecting frame 702 can be confined together. The connecting frames 701 are more tightly connected. A fixing groove 705 is provided on one side of the connecting frame 701. A fixing strip 706 is slidably connected to the inner wall of the fixing groove 705. A third damping rod 707 is fixedly connected to one side of the inner wall of the fixing groove 705. The end of the third damping rod 707 away from the fixing groove 705 is fixedly connected to the side of the fixing strip 706. A third spring 708 is sleeved on the surface of the third damping rod 707. One end of the third spring 708 is fixedly connected to one side of the inner wall of the fixing groove 705. The end of the third spring 708 near the fixing strip 706 is fixedly connected to the side of the fixing strip 706. By pulling the fixing strip 706 towards the inner wall of the fixing groove 705 through the third spring 708, the fixing strip 706 can be well restricted inside the fixing groove 705. This makes it easy to set the fixing strip 706 on the side of the support block 702 away from the support frame 1.

[0030] Working principle: When using the industrial lifting door, the bidirectional motor 3 drives the rotating roller 4 to rotate, thereby winding the steel rope 5 around the surface of the rotating roller 4. This allows the lifting door body 2 to slide along the inner wall of the support frame 1. When closing the door, the bidirectional motor 3 drives the rotating roller 4 to rotate in the opposite direction. Under the traction of gravity, the industrial lifting door is positioned in the inner wall of the support frame 1, which is fixed to one side of the wall. This allows for efficient use of the industrial lifting door. When using the buffer device 6, when the lifting door body 2 slides to the bottom of the inner wall of the support frame 1, the lifting door body 2 is pressed against the top of the rubber block 604, thereby compressing the first spring 603 and the first damping rod 601. When the rubber cylinder 605 contacts the rectangular plate 602, the rubber cylinder 605 is compressed and deformed. This prevents the bottom of the rectangular plate 602 from directly contacting the bottom of the inner wall of the support frame 1, thus providing a buffering effect. When the bottom of the lifting door body 2 contacts the bottom of the inner wall of the support frame 1, the second spring 608 presses it away from the storage groove 606. The movable plate 609 allows the rubber strip 610 to be pressed firmly against the bottom of the lifting door body 2, with the bottom of the lifting door body 2 contacting the rubber strip 610. This seals the gap between the bottom of the inner wall of the support frame 1 and the bottom of the lifting door body 2. When using the support device 7, the support block 702 is slid into the interior of the connecting frame 701, and the rubber plate 703 is pressed through one side of the connecting frame 701, thus confining the support block 702 inside the connecting frame 701. The round rod 704 is passed through one side of the support block 702, making the connection between the support block 702 and the connecting frame 701 tighter. The fixing strip 706 is pulled towards the inner wall of the fixing groove 705 by the third spring 708, thus confining the fixing strip 706 inside the fixing groove 705. This allows the fixing strip 706 to be positioned on the side of the support block 702 away from the support frame 1, thus confining the support block 702 to one side of the support frame 1 and preventing deformation of the support frame 1.

[0031] It should be noted that all damping rods in this case are telescopic dampers, which can absorb energy during the extension and retraction process.

Claims

1. An industrial overhead door with a buffering effect, comprising a support frame (1), characterized in that: The inner wall of the support frame (1) is slidably connected to the lifting door body (2). A bidirectional motor (3) is provided on the side of the support frame (1) away from the ground. A rotating roller (4) is rotatably inserted on the top side of the support frame (1). The bidirectional motor (3) and the rotating roller (4) are connected together by bearings. A steel rope (5) is fixedly connected to the surface of the rotating roller (4). The end of the steel rope (5) away from the rotating roller (4) is fixedly connected to the side of the lifting door body (2). A buffer device (6) is provided inside the support frame (1) near the ground. The buffer device (6) includes a rectangular plate (602). A first damping rod (601) is fixedly connected to the bottom of the inner wall of the support frame (1). The top of the first damping rod (601) is fixedly connected to the rectangular plate (602). A first spring (603) is sleeved on the surface of the first damping rod (601). One end of the first spring (603) is fixedly connected to the bottom of the inner wall of the support frame (1). The end of the first spring (603) near the rectangular plate (602) is fixedly connected to the bottom of the rectangular plate (602). A rubber block (604) is fixedly connected to the top of the rectangular plate (602). The rubber block (604) is set at the bottom of the lifting door body (2).

2. An industrial overhead door with a buffering effect according to claim 1, characterized in that: A rubber cylinder (605) is fixedly connected to the bottom of the support frame (1), and the rubber cylinder (605) is sleeved on the surface of the bottom of the first damping rod (601).

3. An industrial overhead door with a buffering effect according to claim 1, characterized in that: The bottom of the inner wall of the support frame (1) is provided with a storage groove (606), and a movable plate (609) is slidably connected to the inner wall of the storage groove (606). A rubber strip (610) is fixedly connected to the top of the movable plate (609).

4. An industrial overhead door with a buffering effect according to claim 3, characterized in that: A second damping rod (607) is uniformly fixedly connected to the bottom of the inner wall of the storage groove (606). The end of the second damping rod (607) near the moving plate (609) is fixedly connected to the bottom of the moving plate (609). A second spring (608) is sleeved on the surface of the second damping rod (607). One end of the second spring (608) is fixedly connected to the bottom of the inner wall of the storage groove (606). The end of the second spring (608) near the moving plate (609) is fixedly connected to the bottom of the moving plate (609).

5. An industrial overhead door with a buffering effect according to claim 1, characterized in that: A support device (7) is provided on one side of the support frame (1), and a connecting frame (701) is fixedly connected to one side of the support frame (1). A support block (702) is slidably connected to the inner wall of the connecting frame (701).

6. An industrial overhead door with a buffering effect according to claim 5, characterized in that: A rubber plate (703) is fixedly connected to one side of the support block (702), and the rubber plate (703) is slidably inserted through one side of the connecting frame (701).

7. An industrial overhead door with a buffering effect according to claim 5, characterized in that: Another connecting frame (701) has a round rod (704) fixedly connected to its inner wall, and the round rod (704) is slidably inserted through and inserted into one side of the support block (702).

8. An industrial overhead door with a buffering effect according to claim 5, characterized in that: A fixing groove (705) is provided on one side of the connecting frame (701). A fixing strip (706) is slidably connected to the inner wall of the fixing groove (705). A third damping rod (707) is fixedly connected to one side of the inner wall of the fixing groove (705). The end of the third damping rod (707) away from the fixing groove (705) is fixedly connected to one side of the fixing strip (706). A third spring (708) is sleeved on the surface of the third damping rod (707). One end of the third spring (708) is fixedly connected to one side of the inner wall of the fixing groove (705). The end of the third spring (708) near the fixing strip (706) is fixedly connected to one side of the fixing strip (706).