Fireproof clean door

Abstract

The utility model discloses a fireproof clean door which comprises a door frame, a clean door body and a lifting mechanism, a door-shaped baffle is arranged on the rear side in the door frame, the baffle is fixedly connected with the inner walls and the top wall of the left side and the right side of the door frame respectively, a fireproof sealing strip is fixedly arranged on the front side of the baffle, and a fireproof core plate is arranged in the clean door body. One side of the cleaning door body is rotationally connected with one side of the door frame, the other side of the cleaning door body is connected with the other side of the door frame through a locking mechanism, a notch is concavely formed in the bottom of the side, close to the baffle, of the cleaning door body, and a barrier strip is slidably arranged in the notch and abuts against the side wall of the notch and the fireproof sealing strip; the lifting mechanism is arranged in the cleaning door body and used for driving the barrier strip to move up and down. Through the arrangement, the barrier strip is lowered to abut against the ground, then the gap between the cleaning door body and the ground is covered, the sealing performance of the device is improved, meanwhile, equipment can conveniently pass through the door frame, and the trafficability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of clean doors, and particularly relates to a fireproof clean door. Background Technique

[0002] A clean room refers to a relatively airtight space in which parameters such as air cleanliness, temperature, humidity, pressure, and noise are controlled as needed. A clean door is an important component of a clean room. Ordinary clean doors usually have a fireproof core board inside to meet the requirements of fire resistance and heat insulation. However, in order to isolate smoke, a clean door is also required to have good sealing performance.

[0003] Chinese Patent with publication number CN220226649U discloses a fireproof door with a sealing mechanism. The solution includes a door frame and a fireproof door body. The fireproof door body is hinged on one side of the door frame. A U-shaped baffle is also fixedly connected inside the door frame. A U-shaped mounting plate is arranged in the U-shaped groove on one side of the U-shaped baffle. A fireproof rubber strip is fixedly connected to one side of the U-shaped mounting plate. The above solution uses the fireproof rubber strip to block the gap between the fireproof door body and the U-shaped baffle, increasing the airtightness of the fireproof door.

[0004] In the above solution, the U-shaped baffle is fixedly arranged inside the door frame, and the bottom of the U-shaped baffle protrudes from the ground. When equipment needs to be transported into the clean room, the U-shaped baffle protruding from the ground will hinder the movement of the transportation tool, and the passability is poor. Content of the Utility Model

[0005] The utility model aims to provide a fireproof clean door to solve the problem of poor passability existing in the above solution.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A fireproof clean door includes a door frame, a clean door body, and a lifting mechanism. A U-shaped baffle is arranged at the rear side inside the door frame. The baffle is fixedly connected to the left and right inner walls and the top wall of the door frame respectively. A fireproof sealing strip is fixedly arranged on the front side of the baffle. A fireproof core board is arranged inside the clean door body. One side of the clean door body is rotatably connected to one side of the door frame, and the other side of the clean door body is connected to the other side of the door frame through a locking mechanism. A notch is recessed at the bottom of the clean door body near the baffle. A blocking strip is slidably arranged in the notch. The blocking strip abuts against the side wall of the notch and the fireproof sealing strip respectively. The lifting mechanism is arranged inside the clean door body and is used to drive the blocking strip to move up and down.

[0008] Principle and Effect of the Technical Solution:

[0009] When the clean door body is in the open state, the baffle is located in the notch and has a gap with the ground. When closing the clean door body, rotate the clean door body so that its surface close to the baffle side abuts against the fireproof sealing strip, and then drive the lifting mechanism to lower the baffle until the bottom of the baffle abuts against the ground. At this time, the top of the baffle side wall abuts against the side wall of the notch to cover the gap between the clean door body and the ground. Before opening the clean door body again, drive the lifting mechanism to lift the baffle.

[0010] Through the above-mentioned arrangement, a fireproof sealing strip is arranged to cover the gap between the clean door body and the door frame, and the baffle is lowered to make it abut against the ground, thereby covering the gap between the clean door body and the ground. While improving the sealing performance of the device, it is convenient for the equipment to pass through the door frame, thereby improving the passability of the device, and the baffle is lifted before rotating the clean door body to reduce the friction between the baffle and the ground, thereby extending the service life of the device.

[0011] In the utility model, a socket is provided at the top of the notch, a vertical rod slidably inserted into the socket is fixedly provided at the top of the baffle, a protrusion protruding from the socket is fixedly provided at the top of the vertical rod, and the lifting mechanism includes a cam rotatably provided in the clean door body and a tension spring sleeved outside the vertical rod, the cam is located above the vertical rod, and the two ends of the tension spring connect the baffle and the clean door body.

[0012] In the utility model, an installation cavity is provided in the clean door body, and the locking mechanism includes a square core rotatably inserted in the installation cavity, a torsion spring is sleeved outside the square core in the installation cavity, one end of the torsion spring is fixedly connected to the side wall of the square core, and the other end of the torsion spring is fixedly connected to the clean door body, and the square core is connected to the cam transmission through a transmission assembly.

[0013] In the utility model, the transmission assembly includes a rotating shaft, a first sprocket, a second sprocket and a chain. The rotating shaft is sleeved on the square core and connected to the square core key. The first sprocket is annular and rotatably arranged in the installation cavity. The inner wall of the first sprocket is provided with ratchets along its circumference, and the side wall of the rotating shaft is provided with a slide groove. A limit block is slidably arranged in the slide groove. A guide push inclined surface cooperating with the ratchet is provided at one end of the limit block. A compression spring is provided between the limit block and the end wall of the slide groove. The second sprocket is rotatably arranged in the clean door body. A connecting rod is fixedly arranged on the second sprocket along its axis. The connecting rod is eccentrically fixedly connected to the cam, and the chain is wound around the first sprocket and the second sprocket.

[0014] The principle and effect of this technical solution:

[0015] When the clean door body is in the closed state, the end of the cam away from the axis of the connecting rod is at a low position, and its side wall abuts against the convex block, so that the bottom of the retaining bar abuts against the ground, and at the same time, the tension spring is stretched; when it is necessary to open the clean door body, rotate the square core clockwise, drive the torsion spring to deform, so that it has elastic force, and at the same time drive the rotating shaft to rotate, and then make the limiting block rotate clockwise. Since the straight section of the limiting block meshes with the ratchet teeth, the first sprocket is pushed to rotate. Since the chain is wound around the first sprocket and the second sprocket, the second sprocket rotates accordingly, and then the cam rotates along the axis of the connecting rod. After the connecting rod rotates half a turn, the end of the cam away from the axis of the connecting rod rotates to a high position, and the tension spring pulls the retaining bar to move upward. After removing the force applied to the square core, the torsion spring drives the square core to reset, and then drives the rotating shaft to rotate counterclockwise. The ratchet teeth push the limiting block to move into the chute, that is, the rotating shaft cannot drive the first sprocket to rotate counterclockwise, and then the retaining bar continuously disengages from the ground; when it is necessary to close the clean door body, rotate the clean door body until its side wall abuts against the fireproof sealing strip, and repeat the above steps, rotate the square core clockwise again, and make the connecting rod rotate half a turn again. The end of the cam away from the axis of the connecting rod rotates to a low position again, and pushes the retaining bar to abut against the ground again.

[0016] Through the above settings, the purpose of driving the retaining bar to move up and down by the lifting mechanism is achieved. At the same time, after the retaining bar is lifted or lowered, the retaining bar remains stationary relative to the clean door body, so that the retaining bar continuously disengages from the ground or continuously abuts against the ground.

[0017] In the present utility model, a fireproof rubber strip is fixedly arranged along the length direction of the bottom of the retaining bar. Through the above settings, the gap between the clean door body and the ground can be further isolated.

[0018] In the present utility model, one side of the clean door body and one side of the door frame are rotationally connected through a hinge. Through the above settings, the purpose of rotationally connecting one side of the clean door body and one side of the door frame is achieved.

[0019] In the present utility model, a counterbore is recessed at the bottom of the jack along the axis of the jack on the clean door body, and the top of the tension spring is connected to the top of the counterbore. Through the above settings, the cross-sectional area of the notch can be reduced. Description of the Drawings

[0020] Figure 1 Isometric view of the overall structure of the present utility model;

[0021] Figure 2 Exploded view of some parts of the present utility model;

[0022] Figure 3 Partial cross-section of the present utility model Figure 1 ;

[0023] Figure 4 Partial cross-section of the present utility modelFigure 2 。 Detailed implementation manners

[0024] The present utility model will be further described in detail below in conjunction with the accompanying drawings and implementation manners:

[0025] The reference numerals in the accompanying drawings of the specification include: 10, door frame; 11, baffle; 12, fireproof sealing strip; 20, clean door body; 21, notch; 22, jack; 23, installation cavity; 24, counterbore; 30, locking mechanism; 31, square core; 32, lock tongue; 40, bar; 41, vertical rod; 42, convex block; 43, fireproof rubber strip; 50, lifting mechanism; 51, cam; 52, tension spring; 61, rotating shaft; 611, sliding groove; 612, limiting block; 613, compression spring; 62, first sprocket; 621, ratchet tooth; 63, second sprocket; 631, connecting rod; 64, chain; 70, hinge; 80, ground.

[0026] As shown in the attached Figures 1-4 figure, the present utility model discloses a fireproof clean door, which includes a door frame 10, a clean door body 20 and a lifting mechanism 50. A U-shaped baffle 11 is arranged at the rear side inside the door frame 10. The baffle 11 is fixedly connected to the left and right inner side walls and the top wall of the door frame 10 respectively. A fireproof sealing strip 12 is fixedly arranged on the front side of the baffle 11. A fireproof core board is arranged inside the clean door body 20, and one side of the clean door body 20 is rotatably connected to one side of the door frame 10, and the other side of the clean door body 20 is connected to the other side of the door frame 10 through a locking mechanism 30. A notch 21 is concavely arranged at the bottom of the clean door body 20 close to the baffle 11. A bar 40 is slidably arranged in the notch 21. The bar 40 abuts against the side wall of the notch 21 and the fireproof sealing strip 12 respectively. The lifting mechanism 50 is arranged inside the clean door body 20 and is used to drive the bar 40 to move up and down. The surface of the clean door body 20 is covered with a clean surface layer made of materials such as color steel plate, color-coated aluminum alloy plate, electrolytic steel plate, stainless steel plate, and titanium zinc plate.

[0027] In this embodiment, a jack 22 is arranged at the top of the notch 21. A vertical rod 41 fixedly arranged at the top of the bar 40 is slidably inserted into the jack 22. A convex block 42 protruding from the jack 22 is fixedly arranged at the top of the vertical rod 41. The lifting mechanism 50 includes a cam 51 rotatably arranged inside the clean door body 20 and a tension spring 52 sleeved outside the vertical rod 41. The cam 51 is located above the vertical rod 41. The two ends of the tension spring 52 are connected to the bar 40 and the clean door body 20 respectively.

[0028] In this embodiment, an installation cavity 23 is provided inside the clean door body 20. The locking mechanism 30 includes a square core 31 rotatably inserted into the installation cavity 23. A torsion spring is sleeved outside the square core 31 inside the installation cavity 23. One end of the torsion spring is fixedly connected to the side wall of the square core 31, and the other end of the torsion spring is fixedly connected to the clean door body 20. The square core 31 is drivingly connected to a cam 51 through a transmission assembly. A lock tongue 32 is slidably arranged on the other side of the clean door body 20, and the lock tongue 32 is drivingly connected to the square core 31.

[0029] In this embodiment, the transmission assembly includes a rotating shaft 61, a first sprocket 62, a second sprocket 63, and a chain 64. The rotating shaft 61 is sleeved on the square core 31 and is key-connected to the square core 31. The first sprocket 62 is annular and is rotatably arranged inside the installation cavity 23. A ratchet tooth 621 is arranged along the circumferential direction on the inner wall of the first sprocket 62. A chute 611 is arranged on the side wall of the rotating shaft 61, and a limiting block 612 is slidably arranged inside the chute 611. A guiding and pushing inclined surface cooperating with the ratchet tooth 621 is arranged at one end of the limiting block 612. A compression spring 613 is arranged between the limiting block 612 and the end wall of the chute 611. The second sprocket 63 is rotatably arranged inside the clean door body 20. A connecting rod 631 is fixedly arranged along the axis of the second sprocket 63, and the connecting rod 631 is eccentrically and fixedly connected to the cam 51. The chain 64 is wound around the first sprocket 62 and the second sprocket 63.

[0030] In this embodiment, a fireproof rubber strip 43 is fixedly arranged along the length direction at the bottom of the strip 40.

[0031] In this embodiment, one side of the clean door body 20 is rotatably connected to one side of the door frame 10 through a hinge 70.

[0032] In this embodiment, a counterbore 24 is recessed along the axis of the jack 22 at the bottom of the clean door body 20 at the jack 22, and the top of the tension spring 52 is connected to the top of the counterbore 24.

[0033] The specific implementation process is as follows:

[0034] When the clean door body 20 is in the open state, the strip 40 is located inside the notch 21 and has a gap with the ground 80. When closing the clean door body 20, rotate the clean door body 20 so that the surface on the side close to the baffle 11 abuts against the fireproof sealing strip 12. Subsequently, drive the lifting mechanism 50 to lower the strip 40 until the bottom of the strip 40 abuts tightly against the ground 80. At this time, the top of the side wall of the strip 40 abuts against the side wall of the notch 21 to cover the gap between the clean door body 20 and the ground 80. Before opening the clean door body 20 again, drive the lifting mechanism 50 to lift the strip 40.

[0035] When the clean door body 20 is in the closed state, the end of the cam 51 far from the axis of the connecting rod 631 is at a low position, and its side wall abuts against the convex block 42, so that the bottom of the retaining strip 40 abuts against the ground 80, and at the same time the tension spring 52 is stretched; when it is necessary to open the clean door body 20, rotate the square core 31 clockwise, drive the torsion spring to deform, so that it has elastic force, and at the same time drive the rotating shaft 61 to rotate, and then make the limiting block 612 rotate clockwise. Because the straight section of the limiting block 612 meshes with the ratchet tooth 621, the first sprocket 62 is pushed to rotate. Because the chain 64 is wound around the first sprocket 62 and the second sprocket 63, the second sprocket 63 rotates accordingly, and then the cam 51 rotates along the axis of the connecting rod 631. After the connecting rod 631 rotates half a turn, the end of the cam 51 far from the axis of the connecting rod 631 rotates to a high position, and the tension spring 52 pulls the retaining strip 40 to move upward. After removing the force applied to the square core 31, the torsion spring drives the square core 31 to reset, and then drives the rotating shaft 61 to rotate counterclockwise. The ratchet tooth 621 pushes the limiting block 612 to move into the chute 611, that is, the rotating shaft 61 cannot drive the first sprocket 62 to rotate counterclockwise, and then the retaining strip 40 continuously disengages from the ground 80; when it is necessary to close the clean door body 20, rotate the clean door body 20 until its side wall abuts against the fireproof sealing strip 12, and repeat the above steps, rotate the square core 31 clockwise again, and make the connecting rod 631 rotate half a turn again. The end of the cam 51 far from the axis of the connecting rod 631 rotates to a low position again, and pushes the retaining strip 40 to abut against the ground 80 again.

[0036] The above are only the embodiments of the present invention, and the specific technical solutions or common knowledge such as characteristics well known in the art are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A fireproof clean door, characterized in that: include: A door frame, wherein a door-shaped baffle is arranged at the rear side of the door frame, the baffle is fixedly connected to the left and right inner walls and the top wall of the door frame respectively, and a fireproof sealing strip is fixedly arranged on the front side of the baffle; A clean door body, wherein a fireproof core plate is arranged inside the clean door body, and one side of the clean door body is rotatably connected to one side of the door frame, and the other side of the clean door body is connected to the other side of the door frame through a locking mechanism, and a notch is concavely arranged at the bottom of the clean door body near the baffle, and a baffle is slidably arranged in the notch, and the baffle is respectively abutted against the side wall of the notch and the fireproof sealing strip; The lifting mechanism is arranged inside the clean door body and is used to drive the blocking bar to move up and down.

2. The fireproof clean door according to claim 1, characterized in that: A socket is provided at the top of the notch, a vertical rod slidably inserted into the socket is fixedly provided at the top of the baffle, a convex block protruding from the socket is fixedly provided at the top of the vertical rod, and the lifting mechanism includes a cam rotatably provided in the clean door body and a tension spring sleeved outside the vertical rod, the cam is located above the vertical rod, and both ends of the tension spring connect the baffle and the clean door body.

3. The fireproof clean door according to claim 2, characterized in that: An installation cavity is provided in the clean door body, and the locking mechanism includes a square core rotatably inserted in the installation cavity, a torsion spring is sleeved outside the square core in the installation cavity, one end of the torsion spring is fixedly connected to the side wall of the square core, and the other end of the torsion spring is fixedly connected to the clean door body, and the square core is connected to the cam transmission through a transmission assembly.

4. The fireproof clean door according to claim 3, characterized in that: The transmission assembly includes a rotating shaft, a first sprocket, a second sprocket and a chain. The rotating shaft is sleeved on the square core and connected to the square core key. The first sprocket is annular and rotatably arranged in the installation cavity. The inner wall of the first sprocket is provided with ratchets along its circumference, and the side wall of the rotating shaft is provided with a slide groove. A limit block is slidably arranged in the slide groove. A guide push inclined surface cooperating with the ratchet is provided at one end of the limit block. A compression spring is provided between the limit block and the end wall of the slide groove. The second sprocket is rotatably arranged in the clean door body. A connecting rod is fixedly arranged on the second sprocket along its axis. The connecting rod is eccentrically fixedly connected to the cam, and the chain is wound around the first sprocket and the second sprocket.

5. The fireproof clean door according to any one of claims 1 to 4, characterized in that: A fireproof rubber strip is fixedly arranged at the bottom of the baffle along its length direction.

6. The fireproof clean door according to any one of claims 1 to 4, characterized in that: One side of the clean door body is rotatably connected to one side of the door frame through a hinge.

7. The fireproof clean door according to any one of claims 2 to 4, characterized in that: The clean door body is provided with a countersunk hole at the bottom of the insertion hole along the axis of the insertion hole, and the top of the tension spring is connected to the top of the countersunk hole.

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