Fireproof door with anti-pinch function

Abstract

The utility model discloses a fireproof door with an anti-pinch function, which comprises a door frame, the front side of the door frame is hinged with a fireproof door, the front side of the door frame is provided with a first groove, the inside of the first groove is slidably connected with a damping block, the inner wall of the first groove is fixedly connected with a spring, and one end of the spring is fixedly connected with the damping block. By arranging the spring, the damping block and the push rod, when the fireproof door is closed, the damping block can be pushed by the push rod to slide in the first groove, the closing speed of the fireproof door is slowed down through the spring and the damping block, and by arranging the fixing cylinder, the one-way valve, the second connecting pipe and the check block, the check block can be driven to push the second connecting pipe to move when the fireproof door is closed. And when the air in the fixed cylinder is exhausted, the speed of pushing the second connecting pipe by the check block can be reduced, so that the fireproof door is driven to be closed slowly, and hands are prevented from being pinched by the fireproof door.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically a fire door with anti-pinch function. Background Technology

[0002] With the increasing awareness of safety, people are paying more and more attention to fire prevention. As a result, fire doors have become the first choice among different types of doors. Fire doors are doors that can meet the requirements of fire resistance stability and heat insulation within a certain period of time, and can play a certain role in fire prevention. In the event of a fire, fire doors can play a certain role in blocking the spread of fire and buy people time to escape.

[0003] The fire door with anti-pinch function disclosed in CN 221682821U uses an anti-collision sponge. This device, through the installation of an anti-collision sponge, prevents hand injury when the fire door closes too quickly or when wind blows against the door unnoticed. The sponge deforms, causing a connecting plate to enter a first groove on the casing. The spring and telescopic rod are compressed, and the deformation of the sponge and spring cushions the impact, preventing hand injury. However, this device still has the potential to trap the hand if the door closes too quickly or when wind blows against the door unnoticed. The cushioning device only contacts the body when the door is about to close, and injury to the hand is still possible. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a fire door with anti-pinch function, which has the advantage of preventing hands from being pinched when the fire door is closed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire door with anti-pinch function, comprising a door frame, a fire door hinged to the front side of the door frame, a first groove on the front side of the door frame, a damping block slidably connected inside the first groove, a spring fixedly connected to the inner wall of the first groove, one end of the spring fixedly connected to the damping block, a sliding rod fixedly connected inside the first groove, the sliding rod slidably connected to the damping block, a first connecting member fixedly connected to the front side of the damping block, a push rod rotatably connected inside the first connecting member, a second connecting member fixedly connected to the front side of the fire door, a rotating rod rotatably connected to one end of the push rod, the rotating rod rotatably connected to the second connecting member, a second groove on the front side of the door frame, a fixed cylinder fixedly connected inside the second groove, a one-way valve connected to the rear side of the fixed cylinder, a second connecting pipe slidably connected inside the fixed cylinder, a connecting ring fixedly connected to the front side of the second connecting pipe, a stop block fixedly connected to the right side of the fire door, a rubber pad fixedly connected to the inner side of the stop block, the rubber pad fitting against the connecting ring.

[0006] In a preferred embodiment of this utility model, a third groove is provided inside the door frame, a limiting plate is slidably connected inside the third groove, a rack is fixedly connected to the top of the limiting plate, a fourth groove is provided at the top of the third groove, a gear is rotatably connected inside the fourth groove, and the surface of the gear meshes with the rack.

[0007] In a preferred embodiment of this utility model, a fixing plate is fixedly connected to the front side of the door frame, a rubber airbag is fixedly connected to the left side of the fixing plate, an air outlet is opened on the front side of the rubber airbag, a first plastic whistle is fixedly connected inside the air outlet, an elastic telescopic rod is fixedly connected to the right side of the first connector, a push plate is fixedly connected to the right side of the elastic telescopic rod, the right side of the push plate is in contact with the rubber airbag, and a second plastic whistle is connected to the air outlet of the one-way valve.

[0008] As a preferred embodiment of this utility model, a third sliding groove is provided on the inner side of the third groove, and a third slider is fixedly connected to both the front and rear sides of the limiting plate, and the third slider is slidably connected to the third sliding groove.

[0009] As a preferred embodiment of this utility model, a first soft pad is fixedly connected to the front side of the door frame, and a second soft pad is fixedly connected to the rear side of the fire door.

[0010] As a preferred embodiment of this utility model, warning signs are fixedly connected to both the front and rear sides of the fire door, and reflective strips are fixedly connected to both the front and rear sides of the fire door, with the reflective strips located around the warning signs.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting a spring, a damping block, and a push rod, allows the damping block to slide in the first groove when the fire door is closed, and the spring and damping block slow down the closing speed of the fire door. By setting a fixed cylinder, a one-way valve, a second connecting pipe, and a stop block, the closing of the fire door can drive the stop block to move the second connecting pipe, causing the air inside the fixed cylinder to be discharged through the one-way valve. When the air inside the fixed cylinder is discharged, the speed at which the stop block pushes the second connecting pipe can be slowed down, causing the fire door to close slowly and preventing the fire door from pinching hands.

[0013] 2. This utility model, by setting gears and racks, can drive the limiting plate to move left and right. When the limiting plate moves toward the fire door, the inner side of the fire door contacts the limiting plate and cannot be closed. The gap between the fire door and the door frame is fixed to prevent the fire door from pinching hands. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0016] Figure 3 This is a schematic diagram of the top structure of the fire door of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the fixed cylinder of this utility model;

[0018] Figure 5 This is a schematic diagram of the rear view structure of this utility model.

[0019] In the diagram: 1. Door frame; 2. Fire door; 3. First groove; 4. Damping block; 5. Spring; 6. Slide rod; 7. First connector; 8. Push rod; 9. Second connector; 10. Rotating rod; 11. Second groove; 12. Fixed cylinder; 13. One-way valve; 14. Second connecting pipe; 15. Connecting ring; 16. Stop block; 17. Third groove; 18. Limiting plate; 19. Rack; 20. Gear; 21. Fixed plate; 22. Rubber airbag; 23. First plastic whistle; 24. Elastic telescopic rod; 25. Push plate; 26. Second plastic whistle; 27. Third slider; 28. First soft pad; 29. ​​Second soft pad; 30. Warning sign. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 5 As shown, a fire door with anti-pinch function includes a door frame 1, a fire door 2 hinged to the front of the door frame 1, a first groove 3 on the front of the door frame 1, a damping block 4 slidably connected inside the first groove 3, a spring 5 fixedly connected to the inner wall of the first groove 3, one end of the spring 5 fixedly connected to the damping block 4, a sliding rod 6 fixedly connected inside the first groove 3, the sliding rod 6 slidably connected to the damping block 4, a first connecting piece 7 fixedly connected to the front of the damping block 4, a push rod 8 rotatably connected inside the first connecting piece 7, a second connecting piece 9 fixedly connected to the front of the fire door 2, and a rotating rod 10 rotatably connected to one end of the push rod 8. The rotating rod 10 is rotatably connected to the second connecting piece 9. A second groove 11 is provided on the front side of the door frame 1. A fixed cylinder 12 is fixedly connected inside the second groove 11. A one-way valve 13 is connected to the rear side of the fixed cylinder 12. A second connecting pipe 14 is slidably connected inside the fixed cylinder 12. A connecting ring 15 is fixedly connected to the front side of the second connecting pipe 14. A stop block 16 is fixedly connected to the right side of the fire door 2. A rubber pad is fixedly connected to the inner side of the stop block 16. The rubber pad is in contact with the connecting ring 15. When the stop block 16 is separated from the connecting ring 15, air enters the fixed cylinder 12 through the second connecting pipe 14, causing the second connecting pipe 14 to slide forward.

[0022] refer to Figures 1 to 5 The door frame 1 has a third groove 17 inside, and a limit plate 18 is slidably connected inside the third groove 17. A rack 19 is fixedly connected to the top of the limit plate 18. A fourth groove is opened at the top of the third groove 17. The fourth groove is a circular groove. A gear 20 is rotatably connected inside the fourth groove. The gear 20 is located at the top of the limit plate 18, and the surface of the gear 20 meshes with the rack 19.

[0023] As a technical optimization of this utility model, by setting gear 20 and rack 19, the limiting plate 18 can be moved left and right. When the limiting plate 18 moves towards the fire door 2, the inner side of the fire door 2 contacts the limiting plate 18 and cannot be closed. The gap between the fire door 2 and the door frame 1 is fixed to prevent the fire door 2 from pinching the hand.

[0024] refer to Figures 1 to 5A fixing plate 21 is fixedly connected to the front side of the door frame 1. A rubber airbag 22 is fixedly connected to the left side of the fixing plate 21. An air outlet is opened on the front side of the rubber airbag 22. A first plastic whistle 23 is fixedly connected inside the air outlet. An elastic telescopic rod 24 is fixedly connected to the right side of the first connector 7. A push plate 25 is fixedly connected to the right side of the elastic telescopic rod 24. The right side of the push plate 25 is in contact with the rubber airbag 22. A second plastic whistle 26 is connected to the air outlet of the one-way valve 13.

[0025] As a technical optimization of this utility model, by setting a rubber airbag 22 and an elastic telescopic rod 24, when the fire door 2 is closed, the first connecting piece 7 pushes the elastic telescopic rod 24, which drives the push plate 25 to squeeze the rubber airbag 22, causing it to expel the internal air through the first plastic whistle 23 and make a sound. When the air in the fixed cylinder 12 is discharged through the one-way valve 13, the air in the one-way valve 13 is discharged through the second plastic whistle 26 and makes a sound, reminding people that the fire door 2 is closed and preventing the fire door 2 from pinching their hands.

[0026] refer to Figures 1 to 5 The inner side of the third groove 17 is provided with a third sliding groove, and the front and rear sides of the limiting plate 18 are fixedly connected with the third slider 27, which is slidably connected to the third sliding groove.

[0027] As a technical optimization of this utility model, by setting a third slide groove and a third slider 27, the stability of the limiting plate 18 when moving is increased, and the distance of movement of the limiting plate 18 is limited.

[0028] refer to Figures 1 to 5 A first soft pad 28 is fixedly connected to the front side of the door frame 1, and a second soft pad 29 is fixedly connected to the rear side of the fire door 2.

[0029] As a technical optimization of this utility model, by setting the first soft pad 28 and the second soft pad 29, the pain caused by the fire door 2 pinching the hand when the back side of the fire door 2 pinches the front side of the door frame 1 can be reduced.

[0030] refer to Figures 1 to 5 Warning signs 30 are fixedly connected to both the front and rear sides of the fire door 2, and reflective strips are fixedly connected to both the front and rear sides of the fire door 2, with the reflective strips located around the warning signs 30.

[0031] As a technical optimization of this utility model, by setting up a warning sign 30 and a reflective strip, the person pulling the fire door 2 can be reminded to prevent the fire door 2 from pinching their hand.

[0032] The working principle and usage process of this utility model are as follows: When the fire door 2 is closed, the fire door 2 drives the second connecting member 9 to move. The second connecting member 9 is pushed to the right by the push rod 8, which in turn drives the damping block 4 to move within the first groove 3. The spring 5 pushes the damping block 4, slowing down its movement and indirectly slowing down the closing speed of the fire door 2. At the same time, the second connecting member 9 drives the elastic telescopic rod 24 to move, which in turn drives the push plate 25 to move. When the push plate 25 contacts the rubber... When the airbag 22 makes contact, the air inside the rubber airbag 22 is discharged through the first plastic whistle 23 and makes a sound. At the same time, the fire door 2 moves the stop block 16. The rubber pad on the back of the stop block 16 contacts the connecting ring 15 in the second groove 11. The connecting ring 15 pushes the second connecting pipe 14 into the fixed cylinder 12, so that the air in the fixed cylinder 12 is discharged through the one-way valve 13, which indirectly slows down the closing speed of the fire door 2. The one-way valve 13 discharges air through the second plastic whistle 26, so that the second plastic whistle 26 makes a sound.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire door with anti-pinch function, comprising a door frame (1), characterized in that: A fire door (2) is hinged to the front side of the door frame (1). A first groove (3) is provided on the front side of the door frame (1). A damping block (4) is slidably connected inside the first groove (3). A spring (5) is fixedly connected to the inner wall of the first groove (3). One end of the spring (5) is fixedly connected to the damping block (4). A sliding rod (6) is fixedly connected inside the first groove (3). The sliding rod (6) is slidably connected to the damping block (4). A first connecting piece (7) is fixedly connected to the front side of the damping block (4). A push rod (8) is rotatably connected inside the first connecting piece (7). A second connecting piece (9) is fixedly connected to the front side of the fire door (2). One end of the push rod (8) is rotatably connected to a rotating rod (10), and the rotating rod (10) is rotatably connected to the second connecting piece (9). A second groove (11) is provided on the front side of the door frame (1). A fixed cylinder (12) is fixedly connected inside the second groove (11). A one-way valve (13) is connected to the rear side of the fixed cylinder (12). A second connecting pipe (14) is slidably connected inside the fixed cylinder (12). A connecting ring (15) is fixedly connected to the front side of the second connecting pipe (14). A stop block (16) is fixedly connected to the right side of the fire door (2). A rubber pad is fixedly connected to the inner side of the stop block (16). The rubber pad is in contact with the connecting ring (15).

2. A fire door with anti-pinch function according to claim 1, characterized in that: The door frame (1) has a third groove (17) inside, and a limiting plate (18) is slidably connected inside the third groove (17). A rack (19) is fixedly connected to the top of the limiting plate (18). A fourth groove is opened at the top of the third groove (17). A gear (20) is rotatably connected inside the fourth groove. The surface of the gear (20) meshes with the rack (19).

3. A fire door with anti-pinch function according to claim 1, characterized in that: A fixing plate (21) is fixedly connected to the front side of the door frame (1). A rubber airbag (22) is fixedly connected to the left side of the fixing plate (21). An air outlet is opened on the front side of the rubber airbag (22). A first plastic whistle (23) is fixedly connected inside the air outlet. An elastic telescopic rod (24) is fixedly connected to the right side of the first connector (7). A push plate (25) is fixedly connected to the right side of the elastic telescopic rod (24). The right side of the push plate (25) is in contact with the rubber airbag (22). The air outlet of the one-way valve (13) is connected to a second plastic whistle (26).

4. A fire door with anti-pinch function according to claim 2, characterized in that: The inner side of the third groove (17) is provided with a third sliding groove, and the front and rear sides of the limiting plate (18) are fixedly connected with third sliders (27), and the third sliders (27) are slidably connected to the third sliding groove.

5. A fire door with anti-pinch function according to claim 1, characterized in that: A first soft pad (28) is fixedly connected to the front side of the door frame (1), and a second soft pad (29) is fixedly connected to the rear side of the fire door (2).

6. A fire door with anti-pinch function according to claim 1, characterized in that: Warning signs (30) are fixedly connected to both the front and rear sides of the fire door (2), and reflective strips are fixedly connected to both the front and rear sides of the fire door (2), with the reflective strips located around the warning signs (30).

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