A rotary door gap anti-pinch device

Abstract

The application relates to the technical field of rotary door safety, and discloses a rotary door gap anti-hand-clamping device which solves the problem that people are easily clamped by rotary doors during rotation, and the device comprises a door frame and a door body, the door body is located on the inner side of the door frame, and anti-hand-clamping mechanisms are installed on the two sides of the door frame; according to the application, the baffle is perpendicular to the inner side of the door frame in the initial state of the first spring, when the door body rotates to contact the baffle, the gap between the door body and the inner side of the door frame is shielded by the baffle, so that people cannot place hands in the gap between the door body and the inner side of the door frame, when the door body continues to rotate, the baffle can rotate, the first spring is compressed, when the baffle rotates to be separated from the baffle, the first spring is reset to restore the baffle to the original state, the gap between the next door body and the inner side of the door frame is shielded, and the effect of preventing people from being clamped by the door body during rotation is achieved.

Description

Technical Field

[0001] This invention belongs to the field of revolving door safety technology, specifically a revolving door gap anti-pinch device. Background Technology

[0002] Revolving doors combine the advantages of various door types. Their spacious and high-class design creates a luxurious atmosphere, making them a highlight of any building. Due to their open and closed functions, revolving doors enhance wind resistance and reduce air conditioning energy consumption, making them the best choice for isolating airflow and saving energy. Revolving doors are widely used in buildings, and due to their ease of access, they are more commonly used in public buildings.

[0003] However, when a revolving door is closed, there is often a gap between the edge of the door and the frame. This can easily cause injury to people leaning against the door or children playing nearby, as the door rotates. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a revolving door anti-pinch device, which effectively solves the problem that people are easily pinched by the revolving door during the rotation process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a revolving door anti-pinch device, comprising a door frame and a door body, the door body being located inside the door frame, anti-pinch mechanisms being installed on both sides of the door frame, a side movable mechanism being installed on the inside of the door frame and connected to the anti-pinch mechanism, a door body support limiting mechanism being installed on the inside of the door frame and connected to the anti-pinch mechanism, arc-shaped blocks being fixedly connected to both the upper and lower sides of the door body, two side blocks being fixedly connected to the left side of the door frame, a connecting shaft being fixedly connected between the two side blocks, and a roller being movably sleeved on the outside of the connecting shaft.

[0006] The anti-pinch mechanism includes two inner rods fixed to the inside of the door frame. Arc-shaped rods are movably installed on both sides of the inner rods. A movable block is fixedly connected to the end of the arc-shaped rod away from the inner rod. A first spring is provided between the movable block and the inner rod. The first spring is movably connected to the arc-shaped rod.

[0007] Preferably, baffles are installed on both sides of the door frame, a connecting shaft 2 is rotatably connected to one side of the baffle, and two side blocks 2 are fixedly connected to both ends of the connecting shaft 2. Both side blocks 2 are fixedly connected to the inside of the door frame. Two rotating plates are rotatably connected to one side of the baffle, and one end of the two rotating plates is rotatably connected to two movable blocks respectively.

[0008] Preferably, the side movable mechanism includes a support cylinder located at an equal angle between two inner rods, a support rod movably sleeved inside the support cylinder, the bottom end of the support rod extending into the interior of the support cylinder, a bottom cylinder fixedly connected to the top end of the support rod, a second spring provided between the bottom cylinder and the support cylinder, and the second spring movably sleeved with the support rod.

[0009] Preferably, a connecting shaft three is movably installed inside the bottom cylinder, with the bottom end of the connecting shaft three extending into the interior of the bottom cylinder, and a roller two is movably installed on the outside of the connecting shaft three, with the roller two fitting against the roller one.

[0010] Preferably, a top rod is fixedly connected to the bottom of the inner rod located above at an equal angle, a top cylinder is fixedly connected to the bottom end of the top rod, the top cylinder is movably connected to the connecting shaft three, and the top end of the connecting shaft three extends into the interior of the top cylinder.

[0011] Preferably, the top cylinder and the bottom cylinder are the same in shape and size, the number of top cylinders and bottom cylinders is the same, and the top cylinder is located directly above the bottom cylinder.

[0012] Preferably, the door support limiting mechanism includes two vertical plates located inside the door frame. The bottom of the upper vertical plate is fixedly connected to the top of the upper inner rod, and the top of the lower vertical plate is fixedly connected to the bottom of the lower inner rod. A horizontal plate is fixedly connected to the side of the two vertical plates that are far apart from each other.

[0013] Preferably, a support plate is installed on one side of the horizontal plate, and two support blocks are fixedly connected to both sides of the support plate. A sleeve plate is movably sleeved on the outside of the support block. One side of the sleeve plate is fixedly connected to the horizontal plate. Roller three is installed at equal angles on one side of the support plate, and roller three fits into the arc-shaped block.

[0014] Preferably, two support columns are movably installed on one side of the support plate. One end of each support column passes through the horizontal plate and is fixedly connected to a limit block. Two third springs are provided between the support plate and the horizontal plate, and the two third springs are movably sleeved with the two support columns respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) In this invention, through the cooperation between the inner rod and the arc rod, as well as the movable block and the rotating plate, the baffle is perpendicular to the inner side of the door frame when the first spring is in its initial state. When the door rotates to contact the baffle, the baffle blocks the gap between the door and the inner side of the door frame, thus preventing people from placing their hands in the gap between the door and the inner side of the door frame. When the door continues to rotate, the baffle rotates, which in turn compresses the first spring. When the baffle rotates to separate from the baffle, the first spring resets, causing the baffle to return to its original state, thereby blocking the gap between the next door and the inner side of the door frame, thus achieving the effect of preventing people from being easily pinched by the door during the rotation process.

[0017] (2) The invention enables the bottom cylinder to move downward through the cooperation between the support rod and the support cylinder, thereby compressing the second spring and placing the connecting shaft three between the top cylinder and the bottom cylinder. The bottom end of the connecting shaft three extends into the interior of the bottom cylinder. When the control of the bottom cylinder is released, the second spring resets and drives the bottom cylinder to move upward, thereby enabling the connecting shaft three to move upward until the top end of the connecting shaft three extends into the interior of the top cylinder, which facilitates the installation of the roller two. When the door rotates to the point where roller one and roller two are disengaged, both roller two and roller one can rotate, thereby reducing the friction force experienced by the door when rotating, thus facilitating the rotation of the door.

[0018] (3) The invention utilizes the cooperation between the support plate, the support column, and the third spring so that when the door rotates to the inside of the door frame, the arc block can be released from the roller three, thereby compressing the third spring. Then, the elastic action of the third spring on both sides can clamp and limit the door on the upper and lower roller three, thus facilitating the stable rotation of the door and preventing the door from being damaged by collision during rotation. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the door structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the anti-pinch mechanism of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the side movable mechanism structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the roller structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the door support and limiting mechanism of the present invention.

[0028] In the diagram: 1. Door frame; 2. Door body; 3. Anti-pinch mechanism; 301. Inner rod; 302. Rotating plate; 303. Baffle; 304. Connecting shaft two; 305. Side block two; 306. Movable block; 307. Arc rod; 308. First spring; 4. Side moving mechanism; 401. Support cylinder; 402. Connecting shaft three; 403. Roller two; 404. Top rod; 405. Top cylinder; 406. Bottom cylinder; 407. Support rod; 408. Second spring; 5. Door body support and limiting mechanism; 501. Vertical plate; 502. Third spring; 503. Roller three; 504. Support block; 505. Limiting block; 506. Horizontal plate; 507. Support column; 508. Sleeve plate; 509. Support plate; 6. Side block one; 7. Roller one; 8. Connecting shaft one; 9. Arc block. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Example 1, by Figures 1-7 The present invention includes a door frame 1 and a door body 2. The door body 2 is located inside the door frame 1. Anti-pinch mechanisms 3 are installed on both sides of the door frame 1. A side moving mechanism 4 is installed on the inside of the door frame 1 and is connected to the anti-pinch mechanism 3. A door body support limiting mechanism 5 is installed on the inside of the door frame 1 and is connected to the anti-pinch mechanism 3. Arc-shaped blocks 9 are fixedly connected to the upper and lower sides of the door body 2. Two side blocks 6 are fixedly connected to the left side of the door frame 1. A connecting shaft 8 is fixedly connected between the two side blocks 6. A roller 7 is movably sleeved on the outside of the connecting shaft 8.

[0031] In Embodiment 2, based on Embodiment 1, the anti-pinch mechanism 3 includes two inner rods 301 fixed to the inside of the door frame 1. Arc-shaped rods 307 are movably installed on both sides of the inner rods 301. A movable block 306 is fixedly connected to the end of the arc-shaped rod 307 away from the inner rods 301. A first spring 308 is provided between the movable block 306 and the inner rods 301. The first spring 308 is movably sleeved with the arc-shaped rod 307. Baffles 303 are installed on both sides of the door frame 1. A connecting shaft 304 is rotatably connected to one side of the baffle 303. Side blocks 305 are fixedly connected to both ends of the connecting shaft 304. Both side blocks 305 are fixedly connected to the inside of the door frame 1. Two rotating plates 302 are rotatably connected to one side of the baffle 303. One end of each rotating plate 302 is rotatably connected to one of the two movable blocks 306.

[0032] When the door 2 rotates to the inside of the door frame 1, it contacts the baffle 303. The baffle 303 blocks the gap between the door 2 and the inside of the door frame 1, thus preventing people's hands from being placed in the gap. When the door 2 continues to rotate, it drives the baffle 303 to rotate around the connecting shaft 304, which in turn compresses the first spring 308. When the door 2 rotates to the point of separation from the baffle 303, the first spring 308 resets and drives the inner rod 301 to rotate around the connecting shaft 304 to return to its initial state, thus facilitating the blocking of the gap between the next door 2 and the inside of the door frame 1.

[0033] In Embodiment 3, based on Embodiment 1, the side movable mechanism 4 includes a support cylinder 401 located at an equal angle between two inner rods 301. A support rod 407 is movably sleeved inside the support cylinder 401, with the bottom end of the support rod 407 extending into the interior of the support cylinder 401. A bottom cylinder 406 is fixedly connected to the top end of the support rod 407. A second spring 408 is provided between the bottom cylinder 406 and the support cylinder 401, and the second spring 408 is movably sleeved with the support rod 407. A connecting shaft 402 is movably installed inside the bottom cylinder 406, with the bottom end of the connecting shaft 402 extending into the interior of the support cylinder 401. Inside the bottom cylinder 406, a roller 403 is movably installed on the outside of the connecting shaft 3 402. The roller 403 fits against the roller 7. A top rod 404 is fixedly connected at an equal angle to the bottom of the inner rod 301 located above. A top cylinder 405 is fixedly connected to the bottom end of the top rod 404. The top cylinder 405 is movably connected to the connecting shaft 3 402, and the top end of the connecting shaft 3 402 extends into the interior of the top cylinder 405. The top cylinder 405 and the bottom cylinder 406 are the same in shape and size. The number of top cylinders 405 and the bottom cylinder 406 is the same, and the top cylinder 405 is located directly above the bottom cylinder 406.

[0034] First, the bottom cylinder 406 is moved downwards, causing the support rod 407 to move downwards. At this time, the distance between the bottom cylinder 406 and the top cylinder 405 increases, which then compresses the second spring 408. Then, the connecting shaft 402 is placed between the top cylinder 405 and the bottom cylinder 406, and the bottom end of the connecting shaft 402 extends into the interior of the bottom cylinder 406. When the second spring 408 returns to its original position, it causes the bottom cylinder 406 to move upwards, which in turn causes the connecting shaft 402 to move upwards until the top end of the connecting shaft 402 extends into the interior of the top cylinder 405. Finally, the installation of the roller 403 is completed. When the door 2 rotates inside the door frame 1, the roller 7 contacts the roller 403. Since both the roller 403 and the roller 7 can rotate, the friction between the door frame 1 and the door 2 is reduced, facilitating the rotation of the door 2.

[0035] In Example 4, based on Example 1, the door support limiting mechanism 5 includes two vertical plates 501 located inside the door frame 1. The bottom of the upper vertical plate 501 is fixedly connected to the top of the upper inner rod 301, and the top of the lower vertical plate 501 is fixedly connected to the bottom of the lower inner rod 301. A horizontal plate 506 is fixedly connected to the side of each vertical plate 501 that is far apart from the other. A support plate 509 is installed on one side of the horizontal plate 506. Two support blocks 504 are fixedly connected to both sides of the support plate 509. A sleeve plate 508 is movably sleeved on the outer side of 04. One side of the sleeve plate 508 is fixedly connected to the horizontal plate 506. Roller 3 503 is installed at equal angles on one side of the support plate 509. Roller 3 503 fits against the arc block 9. Two support columns 507 are movably installed on one side of the support plate 509. One end of each support column 507 passes through the horizontal plate 506 and is fixedly connected to a limit block 505. Two third springs 502 are provided between the support plate 509 and the horizontal plate 506. The two third springs 502 are movably sleeved with the two support columns 507 respectively.

[0036] When the door 2 rotates to the inside of the door frame 1, the arc block 9 contacts the roller 503. Then, when the door 2 rotates to the inside, the support plates 509 on both sides move away from each other, and the third spring 502 is compressed. Through the elastic action of the third spring 502, the support plates 509 on both sides tend to move closer to each other, thereby clamping and limiting the door 2. Through the elastic action of the third spring 502, the force can be absorbed, preventing the door 2 from being hit and shaking during rotation.

Claims

1. A revolving door anti-pinch device, comprising a door frame (1) and a door body (2), wherein the door body (2) is located inside the door frame (1), characterized in that: Anti-pinch mechanism (3) is installed on both sides of the door frame (1). Side moving mechanism (4) is installed on the inner side of the door frame (1). The side moving mechanism (4) is connected to the anti-pinch mechanism (3). Door support limiting mechanism (5) is installed on the inner side of the door frame (1). The door support limiting mechanism (5) is connected to the anti-pinch mechanism (3). Arc blocks (9) are fixedly connected on both the upper and lower sides of the door body (2). Two side blocks (6) are fixedly connected on the left side of the door frame (1). A connecting shaft (8) is fixedly connected between the two side blocks (6). A roller (7) is movably sleeved on the outer side of the connecting shaft (8). The anti-pinch mechanism (3) includes two inner rods (301) fixed to the inside of the door frame (1). Arc rods (307) are movably installed on both sides of the inner rods (301). A movable block (306) is fixedly connected to the end of the arc rod (307) away from the inner rod (301). A first spring (308) is provided between the movable block (306) and the inner rod (301). The first spring (308) is movably sleeved with the arc rod (307). Baffles (303) are installed on both sides of the door frame (1). A connecting shaft (304) is rotatably connected to one side of the baffle (303). Side blocks (305) are fixedly connected to both ends of the connecting shaft (304). Both side blocks (305) are fixedly connected to the inside of the door frame (1). Two rotating plates (302) are rotatably connected to one side of the baffle (303). One end of the two rotating plates (302) is rotatably connected to the two movable blocks (306) respectively. The side moving mechanism (4) includes a support cylinder (401) located at equal angles between two inner rods (301). A support rod (407) is movably sleeved inside the support cylinder (401). The bottom end of the support rod (407) extends into the interior of the support cylinder (401). A bottom cylinder (406) is fixedly connected to the top end of the support rod (407). A second spring (408) is provided between the bottom cylinder (406) and the support cylinder (401). The second spring (408) is movably sleeved with the support rod (407). A connecting shaft three (402) is movably installed inside the bottom cylinder (406). The bottom end of the connecting shaft three (402) extends into the interior of the bottom cylinder (406). A roller two (403) is movably installed on the outside of the connecting shaft three (402). The roller two (403) is in contact with the roller one (7).

2. The anti-pinch device for revolving door seams according to claim 1, characterized in that: The bottom of the inner rod (301) located above is fixedly connected to a top rod (404) at an equal angle. The bottom end of the top rod (404) is fixedly connected to a top cylinder (405). The top cylinder (405) is movably connected to the connecting shaft three (402), and the top end of the connecting shaft three (402) extends into the interior of the top cylinder (405).

3. The anti-pinch device for revolving door seams according to claim 2, characterized in that: The top cylinder (405) and the bottom cylinder (406) are the same in shape and size. The number of top cylinders (405) and bottom cylinders (406) is the same, and the top cylinder (405) is located directly above the bottom cylinder (406).

4. The anti-pinch device for revolving door seams according to claim 1, characterized in that: The door support limiting mechanism (5) includes two vertical plates (501) located inside the door frame (1). The bottom of the upper vertical plate (501) is fixedly connected to the top of the upper inner rod (301), and the top of the lower vertical plate (501) is fixedly connected to the bottom of the lower inner rod (301). A horizontal plate (506) is fixedly connected to the side of the two vertical plates (501) that are far apart from each other.

5. A revolving door anti-pinch device according to claim 4, characterized in that: A support plate (509) is installed on one side of the horizontal plate (506). Two support blocks (504) are fixedly connected to both sides of the support plate (509). A sleeve plate (508) is movably sleeved on the outside of the support block (504). One side of the sleeve plate (508) is fixedly connected to the horizontal plate (506). Roller three (503) is installed at equal angles on one side of the support plate (509). Roller three (503) fits against the arc block (9).

6. The anti-pinch device for revolving door seams according to claim 5, characterized in that: Two support columns (507) are movably installed on one side of the support plate (509). One end of each support column (507) passes through the horizontal plate (506) and is fixedly connected to a limit block (505). Two third springs (502) are provided between the support plate (509) and the horizontal plate (506). The two third springs (502) are movably connected to the two support columns (507) respectively.

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