A protection door convenient to control opening and closing angle

Abstract

The utility model relates to the technical field of protective door, specifically is a protective door convenient to control the angle of opening and closing, including door frame, fixedly connected with fixed shaft on the door frame, rotatably connected with the door board on the fixed shaft, fixed between the door board and fixed shaft through fixed structure, and the fixed structure includes the limiting shaft, the limiting shaft is slidably connected on the door board, a plurality of limiting holes are equipped on the fixed shaft, the plurality of limiting holes are about the center of fixed shaft and are distributed in the circular array, the limiting shaft is engaged with one limiting hole, the fixed connection with the pressing plate is established on the limiting shaft, and the pressing plate is slidably connected with the door board. The limiting hole of circular array can provide a plurality of fixed gears for angle adjustment, satisfy different operation needs in the workshop, and through the engagement design of limiting shaft and limiting hole, can ensure that the door board is stably fixed at the target angle, effectively avoids that the door board shakes due to the machine vibration in the workshop.

Description

Technical Field

[0001] This utility model relates to a protective door, specifically a protective door that is easy to control the opening and closing angle, and belongs to the field of protective door technology. Background Technology

[0002] Protective doors are special types of doors that combine safety protection and spatial isolation functions. They are widely used in industrial workshops, warehouses, laboratories, underground garages, and chemical plants. Their core functions are to resist external impacts, block dust and fumes, and ensure area safety. Some protective doors also need to meet special requirements such as fire resistance, explosion protection, and corrosion resistance. These doors typically consist of a door frame, door panels, and connecting structures.

[0003] However, most protective doors are connected to the door frame via traditional hinges. The door panel can rotate freely around the hinges, and can only achieve two states: fully open or fully closed. It is inconvenient to control the rotation angle. When it is necessary to keep the protective door at a specific opening angle, the existing protective doors cannot fix the angle on their own, resulting in poor stability. They are easily affected by vibrations from workshop equipment or accidental collisions, causing the door panel to rotate. Utility Model Content

[0004] The purpose of this utility model is to provide a protective door that is easy to control the opening and closing angle in order to solve the above problems. The circumferential array of limiting holes can provide multiple fixed positions for angle adjustment to meet different work needs in the workshop. At the same time, the interlocking design of the limiting shaft and the limiting hole can ensure that the door panel is stably fixed at the target angle, effectively preventing the door panel from shaking due to machine vibration in the workshop.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a protective door that facilitates control of the opening and closing angle, comprising a door frame, a fixed shaft fixedly connected to the door frame, a door panel rotatably connected to the fixed shaft, the door panel and the fixed shaft being fixed by a fixing structure, the fixing structure including a limiting shaft, the limiting shaft being slidably connected to the door panel, the fixed shaft having multiple limiting holes arranged in a circular array about the center of the fixed shaft, the limiting shaft engaging with one of the limiting holes, and a pressing plate fixedly connected to the limiting shaft, the pressing plate being slidably connected to the door panel.

[0006] Preferably, a guide rod is fixedly connected to the pressing plate, and the guide rod is slidably connected to the door panel.

[0007] Preferably, a spring is connected between the guide rod and the door panel, with one end of the spring fixedly connected to the guide rod and the other end fixedly connected to the door panel.

[0008] Preferably, an anti-detachment block is fixedly connected to the door panel, and the guide rod is slidably connected to the anti-detachment block.

[0009] Preferably, the door panel is provided with a sealing structure, the sealing structure including a sliding frame, and the sliding frame is slidably connected to the door panel.

[0010] Preferably, a sealing ring is fixedly connected to the sliding frame, and the end of the sealing ring facing the door frame has a trapezoidal cross-section.

[0011] Preferably, the door frame is provided with a sealing groove, and the sealing ring engages with the sealing groove.

[0012] Preferably, a lead screw is rotatably connected to the door panel, and the slide frame is threadedly connected to the lead screw.

[0013] Preferably, a guide shaft is fixedly connected to the sliding frame, and the guide shaft is slidably connected to the door panel.

[0014] Preferably, a rotating block is fixedly connected to the lead screw, and a pull plate is fixedly connected to the door panel.

[0015] The beneficial effects of this utility model are as follows: a fixed shaft is fixedly connected to the door frame, and a door panel is rotatably connected to the fixed shaft. The door panel and the fixed shaft are fixed by a fixed structure. A limiting shaft is slidably connected to the door panel. The fixed shaft is provided with multiple limiting holes, which are arranged in a circular array about the center of the fixed shaft. The limiting shaft engages with one of the limiting holes. A pressing plate is fixedly connected to the limiting shaft, and the pressing plate is slidably connected to the door panel. The circular array of limiting holes can provide multiple fixed positions for angle adjustment to meet different work needs in the workshop. At the same time, the engaging design between the limiting shaft and the limiting holes can ensure that the door panel is stably fixed at the target angle, effectively preventing the door panel from shaking due to machine vibration in the workshop. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the pull plate and the door panel of this utility model; Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A. Figure 4 This is a schematic diagram of the connection structure between the fixed shaft and the door frame of this utility model; Figure 5 for Figure 4 The diagram shown is an enlarged view of the structure of section B. Figure 6 This is a schematic diagram of the connection structure between the pressing plate and the door panel of this utility model; Figure 7 for Figure 6 The diagram shows an enlarged view of section C.

[0017] In the diagram: 1. Door frame; 2. Door panel; 3. Fixed shaft; 4. Fixed structure; 401. Limiting shaft; 402. Limiting hole; 403. Pressing plate; 404. Guide rod; 405. Anti-detachment block; 406. Spring; 5. Sealing structure; 501. Sliding frame; 502. Sealing ring; 503. Sealing groove; 504. Guide shaft; 505. Lead screw; 506. Rotating block; 6. Pull plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-7 As shown, a protective door that facilitates control of the opening and closing angle includes a door frame 1, a fixed shaft 3 fixedly connected to the door frame 1, a door panel 2 rotatably connected to the fixed shaft 3, and the door panel 2 and the fixed shaft 3 being fixed together by a fixing structure 4. The fixing structure 4 includes a limiting shaft 401, the limiting shaft 401 being slidably connected to the door panel 2, and the fixed shaft 3 having multiple limiting holes 402 arranged in a circular array about the center of the fixed shaft 3. The limiting shaft 401 engages with one of the limiting holes 402, and a pressing plate 403 is fixedly connected to the limiting shaft 401, and the pressing plate 403 is slidably connected to the door panel 2.

[0020] As a technical optimization of this utility model, a guide rod 404 is fixedly connected to the pressing plate 403. The guide rod 404 is slidably connected to the door panel 2. A spring 406 is connected between the guide rod 404 and the door panel 2. One end of the spring 406 is fixedly connected to the guide rod 404, and the other end is fixedly connected to the door panel 2. First, the pressing plate 403 is pressed. Since the pressing plate 403 is slidably connected to the door panel 2 and fixedly connected to the limiting shaft 401, the pressing action will drive the limiting shaft 401 to slide synchronously on the door panel 2, thereby causing the limiting shaft 401 to disengage from the limiting holes 402 arranged in a circular array on the fixed shaft 3. At this time, the operator can easily pull the door panel 2 through the pull plate 6 fixedly connected to the door panel 2. Since the fixed shaft 3 fixedly connected to the door panel 2 and the door frame 1 is rotatably connected, the door panel 2 can rotate smoothly around the fixed shaft 3 during the pulling process. The operator can then push the door panel 2 to adjust to the required angle. The circular array of limiting holes 402 can provide multiple fixed holes for angle adjustment. The gear shifting mechanism caters to different operational needs in the workshop. The engaging design of the limiting shaft 401 and the limiting hole 402 ensures the door panel 2 remains stably fixed at the target angle, effectively preventing shaking caused by machine vibrations within the workshop. The guide rod 404, fixedly connected to the pressing plate 403, is slidably connected to the door panel 2. The guide rod 404 guides the pressing plate 403 when it is pressed, making the pressing plate 403 slide more smoothly. Simultaneously, a spring 406 connects the guide rod 404 and the door panel 2. When the pressing plate 403 is released, the guide rod 404 can be pushed back to its original position by its own elasticity, thereby driving the limiting shaft 401 to re-engage into the corresponding limiting hole 402. No manual reset is required, which greatly improves the convenience of operation. The anti-detachment block 405 fixedly connected to the door panel 2 is slidably connected to the guide rod 404, which can limit the sliding distance of the guide rod 404 on the door panel 2 and prevent the guide rod 404 from falling off. The anti-detachment block 405 is fixedly connected to the door panel 2, and the guide rod 404 is slidably connected to the anti-detachment block 405.

[0021] As a technical optimization of this utility model, a sealing structure 5 is provided on the door panel 2. The sealing structure 5 includes a sliding frame 501, which is slidably connected to the door panel 2. A sealing ring 502 is fixedly connected to the sliding frame 501. The end of the sealing ring 502 facing the door frame 1 has a trapezoidal cross-section. A sealing groove 503 is provided on the door frame 1. The sealing ring 502 engages with the sealing groove 503. When the workshop needs to be sealed for dust prevention or heat preservation, the rotating block 506 fixedly connected to the lead screw 505 is rotated. The rotating block 506 will drive the lead screw 505 to rotate synchronously on the door panel 2. Since the sliding frame 501 is threadedly connected to the lead screw 505, when the lead screw 505 rotates, it will drive the sliding frame 501 to slide the guide shaft 504. The guide shaft 504 allows the sliding frame 501 to move more smoothly. At the same time, the sealing ring 502 fixedly connected to the sliding frame 501 will move with the sliding frame 501 and lock into the sealing groove 503 on the door frame 1, thus achieving a seal between the door panel 2 and the door frame 1. The trapezoidal cross-section structure of the sealing ring 502 facing the door frame 1 allows the sealing ring 502 to lock into the sealing groove 503 more smoothly, further enhancing the sealing effect. A lead screw 505 is rotatably connected to the door panel 2, and the sliding frame 501 is threadedly connected to the lead screw 505. The guide shaft 504 is fixedly connected to the sliding frame 501 and is slidably connected to the door panel 2. A rotating block 506 is fixedly connected to the lead screw 505, and a pull plate 6 is fixedly connected to the door panel 2.

[0022] In use, the pressing plate 403 is first pressed. Since the pressing plate 403 is slidably connected to the door panel 2 and fixedly connected to the limiting shaft 401, the pressing action will cause the limiting shaft 401 to slide synchronously on the door panel 2, thereby causing the limiting shaft 401 to disengage from the limiting holes 402 arranged in a circular array on the fixed shaft 3. At this time, the operator can easily pull the door panel 2 through the pull plate 6 fixedly connected to the door panel 2. Because the fixed shaft 3 fixedly connected to the door panel 2 and the door frame 1 is rotatably connected, the door panel 2 can rotate smoothly around the fixed shaft 3 during the pulling process, allowing the operator to push... The door panel 2 is adjusted to the desired angle. The circumferential array of limiting holes 402 provides multiple fixed angle adjustment positions to meet different workshop operation needs. The engaging design of the limiting shaft 401 and the limiting holes 402 ensures that the door panel 2 is stably fixed at the target angle, effectively preventing shaking caused by machine vibration in the workshop. The guide rod 404, fixedly connected to the pressing plate 403, is slidably connected to the door panel 2. The guide rod 404 guides the pressing plate 403 when it is pressed, making the pressing plate 403 slide more smoothly. Simultaneously, the guide rod 404 and the door panel 2... The spring 406 connected between the two can push the guide rod 404 back to its original position by its own elasticity when the pressing plate 403 is released, thereby driving the limiting shaft 401 to re-engage into the corresponding limiting hole 402. This eliminates the need for manual reset and greatly improves the ease of operation. The anti-detachment block 405 fixedly connected to the door panel 2 is slidably connected to the guide rod 404, which can limit the sliding distance of the guide rod 404 on the door panel 2 and prevent the guide rod 404 from falling off. When the workshop needs to be sealed for dust prevention or heat preservation, rotating the rotating block 506 fixedly connected to the lead screw 505 will drive the lead screw 505 to move on the door panel. 2. The sliding frame 501 is threadedly connected to the lead screw 505. When the lead screw 505 rotates, it will drive the sliding frame 501 to slide the guide shaft 504. The guide shaft 504 makes the sliding frame 501 move more smoothly. At the same time, the sealing ring 502 fixedly connected to the sliding frame 501 will move with the sliding frame 501 and get into the sealing groove 503 on the door frame 1, so as to achieve the sealing between the door panel 2 and the door frame 1. The trapezoidal cross-section structure of the sealing ring 502 facing the door frame 1 allows the sealing ring 502 to get into the sealing groove 503 more smoothly, further enhancing the sealing effect.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective door that facilitates control of the opening and closing angle, comprising a door frame (1), characterized in that: A fixed shaft (3) is fixedly connected to the door frame (1), and a door panel (2) is rotatably connected to the fixed shaft (3). The door panel (2) and the fixed shaft (3) are fixed together by a fixed structure (4). The fixed structure (4) includes a limiting shaft (401). The limiting shaft (401) is slidably connected to the door panel (2). The fixed shaft (3) is provided with multiple limiting holes (402). The multiple limiting holes (402) are arranged in a circular array about the center of the fixed shaft (3). The limiting shaft (401) engages with one of the limiting holes (402). A pressing plate (403) is fixedly connected to the limiting shaft (401). The pressing plate (403) is slidably connected to the door panel (2).

2. A protective door with easily controllable opening and closing angle as described in claim 1, characterized in that: A guide rod (404) is fixedly connected to the pressing plate (403), and the guide rod (404) is slidably connected to the door panel (2).

3. A protective door with easily controllable opening and closing angle according to claim 2, characterized in that: A spring (406) is connected between the guide rod (404) and the door panel (2). One end of the spring (406) is fixedly connected to the guide rod (404), and the other end is fixedly connected to the door panel (2).

4. A protective door with easily controllable opening and closing angle according to claim 3, characterized in that: An anti-detachment block (405) is fixedly connected to the door panel (2), and the guide rod (404) is slidably connected to the anti-detachment block (405).

5. A protective door with easily controllable opening and closing angle according to claim 1, characterized in that: The door panel (2) is provided with a sealing structure (5), the sealing structure (5) includes a sliding frame (501), and the sliding frame (501) is slidably connected to the door panel (2).

6. A protective door with easily controllable opening and closing angle according to claim 5, characterized in that: A sealing ring (502) is fixedly connected to the sliding frame (501), and the end of the sealing ring (502) facing the door frame (1) has a trapezoidal cross section.

7. A protective door with easily controllable opening and closing angle according to claim 6, characterized in that: The door frame (1) is provided with a sealing groove (503), and the sealing ring (502) engages with the sealing groove (503).

8. A protective door with easily controllable opening and closing angle according to claim 7, characterized in that: A lead screw (505) is rotatably connected to the door panel (2), and the sliding frame (501) is threadedly connected to the lead screw (505).

9. A protective door with easily controllable opening and closing angle according to claim 8, characterized in that: A guide shaft (504) is fixedly connected to the sliding frame (501), and the guide shaft (504) is slidably connected to the door panel (2).

10. A protective door with easily controllable opening and closing angle according to claim 9, characterized in that: A rotating block (506) is fixedly connected to the lead screw (505), and a pull plate (6) is fixedly connected to the door panel (2).

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