Silent industrial lifting door

Abstract

The utility model discloses a noiseless industrial lift door, which relates to the technical field of lift doors, and comprises a door frame and an auxiliary mechanism, a door curtain is arranged in the middle of the door frame, the auxiliary mechanism is arranged between the door frame and the door curtain, the auxiliary mechanism is used for reducing friction force between the door curtain and the door frame, and the auxiliary mechanism comprises a connecting plate arranged between the door frame and the door curtain. Rollers are symmetrically and fixedly connected to the outer wall of the connecting plate, a plurality of fixing plates are rotatably connected between the rollers at intervals, and an elastic mechanism is arranged between the connecting plate and the door frame. By means of the arrangement of the fixing plate, the rotatable fixing plate abuts against the outer wall of the door curtain through the elastic mechanism, so that when the door curtain ascends and descends, the outer wall of the door curtain does not make contact with the inner wall of the door frame, friction force in the door curtain ascending and descending process is smaller, lifting of the door curtain is smoother, and the service life of the door curtain is prolonged. Meanwhile, noise generated in the lifting process of the door curtain is smaller, and therefore the working stability of the door curtain is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting doors, in particular to a silent industrial lifting door. Background Art

[0002] Lifting door is an industrial door used in industrial plants.

[0003] The main body of the lifting door consists of a door frame and a door curtain. The door curtain will rise and fall according to the track of the door frame to open and close the lifting door.

[0004] When the current lifting door is working, the lifting of the door curtain will cause the door curtain to move relative to the door frame. However, during the movement of the door curtain, the door curtain will contact the inner wall of the door frame, resulting in a large friction between the door curtain and the door frame, making the lifting door not work smoothly. At the same time, the large friction will cause the lifting door to make a lot of noise when working. For this reason, we propose a silent industrial lifting door that can work stably. Utility Model Content

[0005] The purpose of the utility model is to provide a silent industrial lifting door to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a silent industrial lifting door, comprising:

[0007] A door frame, wherein a door curtain is arranged in the middle of the door frame;

[0008] An auxiliary mechanism is arranged between the door frame and the door curtain, and is used to reduce the friction between the door curtain and the door frame. The auxiliary mechanism includes a connecting plate arranged between the door frame and the door curtain, and the outer wall of the connecting plate is symmetrically fixedly connected with rollers, and a plurality of fixed plates are rotatably connected between the rollers, and an elastic mechanism is arranged between the connecting plate and the door frame.

[0009] Preferably, the elastic mechanism comprises a spring, the spring is arranged between the connecting plate and the inner wall of the door frame, and a pressing mechanism is arranged between the spring and the inner wall of the door frame.

[0010] Preferably, the extrusion mechanism includes an extrusion plate arranged between the spring and the inner wall of the door frame, one end of the spring is fixedly connected to the outer wall of the extrusion plate, the other end of the spring is fixedly connected to the outer wall of the connecting plate, and a moving mechanism is arranged between the extrusion plate and the inner wall of the door frame.

[0011] Preferably, the moving mechanism includes a screw fixedly connected to the outer wall of the extrusion plate, the inner wall of the door frame is provided with a rotating hole, the inner wall of the rotating hole is rotatably connected with a rotating cylinder, one end of the rotating cylinder is provided with a threaded hole, the inner wall of the threaded hole is threadedly connected to the inner wall of the screw, and a limiting mechanism is arranged between the extrusion plate and the inner wall of the door frame.

[0012] Preferably, the limiting mechanism comprises a limiting hole formed on the outer wall of the extruded plate, a connecting rod is movably inserted and connected to the inner wall of the limiting hole, and a connecting mechanism is provided between the connecting rod and the inner wall of the door frame.

[0013] Preferably, the connecting mechanism includes a connecting hole opened on the inner wall of the door frame, the outer wall of the connecting rod is movably connected to the inner wall of the connecting hole, a limiting cavity is opened on the inner wall of the connecting hole, one end of the connecting rod is fixedly connected to the limiting block, the outer wall of the limiting block is slidably connected to the inner wall of the limiting cavity, the other end of the connecting rod is fixedly connected to the outer wall of the connecting plate, and the spring is sleeved on the outer wall of the connecting rod.

[0014] Technical effects and advantages of the utility model:

[0015] The utility model utilizes the setting of a fixing plate, and through an elastic mechanism, the rotatable fixing plate is pressed against the outer wall of the door curtain, so that when the door curtain is lifted or lowered, the outer wall of the door curtain will not contact the inner wall of the door frame, thereby reducing the friction force during the lifting process of the door curtain, making the lifting of the door curtain smoother, and at the same time, the noise during the lifting process of the door curtain will also be smaller, thereby improving the stability of the door curtain operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the top sectional structure of the fixing plate of the utility model.

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing plate of the utility model.

[0020] In the figure: 101, door frame; 102, door curtain; 201, connecting plate; 202, fixing plate; 203, roller; 301, spring; 401, extrusion plate; 501, rotating hole; 502, rotating drum; 503, threaded hole; 504, screw; 601, connecting rod; 602, limiting hole; 701, connecting hole; 702, limiting cavity; 703, limiting block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4 A silent industrial lifting door shown includes a door frame 101 and an auxiliary mechanism. A door curtain 102 is arranged in the middle of the door frame 101, and the door curtain 102 can be raised and lowered in the door frame 101.

[0023] In a preferred embodiment, an auxiliary mechanism is arranged between the door frame 101 and the door curtain 102, and the auxiliary mechanism is used to reduce the friction between the door curtain 102 and the door frame 101. The auxiliary mechanism includes a connecting plate 201 arranged between the door frame 101 and the door curtain 102, and the outer wall of the connecting plate 201 is symmetrically fixedly connected with rollers 203, and a plurality of fixed plates 202 are rotatably connected between the rollers 203 at intervals, and an elastic mechanism is arranged between the connecting plate 201 and the door frame 101, and the rotatable fixed plate 202 is pressed against the outer wall of the door curtain 102 through the elastic mechanism, so that when the door curtain 102 is lifted and moved, the outer wall of the door curtain 102 will not contact the inner wall of the door frame 101, so that the friction during the lifting process of the door curtain 102 is smaller, and the lifting of the door curtain 102 is smoother. At the same time, the noise during the lifting process of the door curtain 102 will also be smaller, thereby improving the working stability of the door curtain 102.

[0024] Among them, the elastic mechanism includes a spring 301, and the spring 301 is arranged between the connecting plate 201 and the inner wall of the door frame 101. An extrusion mechanism is arranged between the spring 301 and the inner wall of the door frame 101. Through the elastic action of the spring 301, the connecting plate 201 can be squeezed by the spring 301, so that the connecting plate 201 can drive the fixed plate 202 to stably press against the outer wall of the door curtain 102, thereby improving the stability of the auxiliary mechanism.

[0025] Preferably, the extrusion mechanism includes an extrusion plate 401 arranged between the spring 301 and the inner wall of the door frame 101, one end of the spring 301 is fixedly connected to the outer wall of the extrusion plate 401, and the other end of the spring 301 is fixedly connected to the outer wall of the connecting plate 201. A moving mechanism is arranged between the extrusion plate 401 and the inner wall of the door frame 101, and the extrusion plate 401 can be driven to move by the moving mechanism, thereby changing the positioning position of the spring 301, and the extrusion force of the spring 301 on the connecting plate 201 can be changed, so that the fixed plate 202 can be adjusted to be in a suitable force to press against the outer wall of the door curtain 102, ensuring that the fixed plate 202 can rotate stably during the lifting process of the door curtain 102.

[0026] Among them, the moving mechanism includes a screw 504 fixedly connected to the outer wall of the extrusion plate 401, a rotating hole 501 is opened on the inner wall of the door frame 101, and the inner wall of the rotating hole 501 is rotatably connected with a rotating cylinder 502. A threaded hole 503 is opened at one end of the rotating cylinder 502, and the inner wall of the threaded hole 503 is threadedly connected to the inner wall of the screw 504. A limiting mechanism is arranged between the extrusion plate 401 and the inner wall of the door frame 101. Under the limitation of the limiting mechanism, the rotating cylinder 502 rotates in the rotating hole 501, which can drive the meshing screw 504 to move, so that the screw 504 can drive the extrusion plate 401 to move, thereby improving the convenience of operation of the extrusion mechanism.

[0027] Furthermore, the limiting mechanism includes a limiting hole 602 opened on the outer wall of the extrusion plate 401, and the inner wall of the limiting hole 602 is movably connected with a connecting rod 601, and a connecting mechanism is arranged between the connecting rod 601 and the inner wall of the door frame 101. The limiting hole 602 and the connecting rod 601 limit each other, so that the extrusion plate 401 cannot rotate, that is, when the rotating drum 502 rotates to drive the screw rod 504 to move, the lateral force brought to the screw rod 504 by the rotation of the rotating drum 502 can be offset, thereby improving the stability of the movement of the extrusion plate 401.

[0028] Furthermore, the connecting mechanism includes a connecting hole 701 opened on the inner wall of the door frame 101, the outer wall of the connecting rod 601 is movably connected to the inner wall of the connecting hole 701, and a limiting cavity 702 is opened on the inner wall of the connecting hole 701. One end of the connecting rod 601 is fixedly connected to the limiting block 703, and the outer wall of the limiting block 703 is slidably connected to the inner wall of the limiting cavity 702. The other end of the connecting rod 601 is fixedly connected to the outer wall of the connecting plate 201, and the spring 301 is sleeved on the outer wall of the connecting rod 601. The connecting rod 601 is limited by the connecting hole 701, so that the extrusion plate 401 cannot rotate relative to the door frame 101, thereby ensuring the stability of the limiting mechanism. At the same time, the limiting block 703 is limited by the limiting cavity 702, so that the connecting rod 601 cannot be separated from the door frame 101, thereby improving the stability of the limiting mechanism.

[0029] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A silent industrial lifting door, characterized in that: include: A door frame (101), wherein a door curtain (102) is arranged in the middle of the door frame (101); An auxiliary mechanism is provided between a door frame (101) and a door curtain (102), and is used to reduce the friction between the door curtain (102) and the door frame (101). The auxiliary mechanism comprises a connecting plate (201) provided between the door frame (101) and the door curtain (102), rollers (203) are symmetrically fixedly connected to the outer wall of the connecting plate (201), a plurality of fixed plates (202) are rotatably connected between the rollers (203), and an elastic mechanism is provided between the connecting plate (201) and the door frame (101).

2. A silent industrial lifting door according to claim 1, characterized in that: The elastic mechanism comprises a spring (301), the spring (301) is arranged between the connecting plate (201) and the inner wall of the door frame (101), and a pressing mechanism is arranged between the spring (301) and the inner wall of the door frame (101).

3. A silent industrial lifting door according to claim 2, characterized in that: The extrusion mechanism comprises an extrusion plate (401) arranged between a spring (301) and an inner wall of a door frame (101); one end of the spring (301) is fixedly connected to an outer wall of the extrusion plate (401); the other end of the spring (301) is fixedly connected to an outer wall of a connecting plate (201); and a moving mechanism is arranged between the extrusion plate (401) and the inner wall of the door frame (101).

4. The silent industrial lifting door according to claim 3, characterized in that: The moving mechanism comprises a screw (504) fixedly connected to the outer wall of the extrusion plate (401); a rotating hole (501) is provided on the inner wall of the door frame (101); a rotating cylinder (502) is rotatably connected to the inner wall of the rotating hole (501); a threaded hole (503) is provided at one end of the rotating cylinder (502); the inner wall of the threaded hole (503) is threadedly connected to the inner wall of the screw (504); and a limiting mechanism is provided between the extrusion plate (401) and the inner wall of the door frame (101).

5. The silent industrial lifting door according to claim 4, characterized in that: The limiting mechanism comprises a limiting hole (602) formed on the outer wall of the extrusion plate (401), a connecting rod (601) is movably inserted into the inner wall of the limiting hole (602), and a connecting mechanism is provided between the connecting rod (601) and the inner wall of the door frame (101).

6. The silent industrial lifting door according to claim 5, characterized in that: The connecting mechanism comprises a connecting hole (701) provided on the inner wall of the door frame (101); the outer wall of the connecting rod (601) is movably connected to the inner wall of the connecting hole (701); a limiting cavity (702) is provided on the inner wall of the connecting hole (701); one end of the connecting rod (601) is fixedly connected to a limiting block (703); the outer wall of the limiting block (703) is slidably connected to the inner wall of the limiting cavity (702); the other end of the connecting rod (601) is fixedly connected to the outer wall of the connecting plate (201); and the spring (301) is sleeved on the outer wall of the connecting rod (601).

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