Fireproof door frame

Abstract

The utility model discloses a fireproof door frame which comprises a frame body, a fireproof mechanism is arranged on the frame body, a fixing base is fixedly connected to the fireproof mechanism, the fireproof mechanism comprises a protective shell, the end of the protective shell is rotationally connected with a protective cover through a hinge, a containing groove is formed in the protective shell, and the protective cover is arranged in the containing groove. The fireproof door comprises a protective shell, a guide rod is fixedly connected into the protective shell, the end of the guide rod is fixedly connected with a limiting block, a reset spring is arranged on the guide rod, a fire extinguishing agent box is slidably connected to the guide rod, and a spray head with a plastic plug is installed on the fire extinguishing agent box. According to the fireproof door frame, the heat conduction block is heated to transfer heat to the thermal bimetallic strip, the thermal bimetallic strip deforms to drive the cutter to move, the cutter cuts off the connecting rope, the spray head is pushed out of the protective shell, a fire extinguishing agent is sprayed out, fire extinguishing is conducted when a fire breaks out, the fireproof door frame can be located in the protective shell when not used, and the protection effect on the spray head is improved.

Description

Technical Field

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

[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is composed of a fire door frame and a door body. In the prior art, sprinklers are installed on the fire door frame to extinguish fires. However, the plastic sheets on the sprinklers are exposed to the outside and are easily separated by stress, and the protective effect on the sprinklers is not ideal.

[0003] For example, patent publication number CN217461857U is specifically a fireproof door frame, which belongs to the technical field of fireproof doors. The key points of its technical solution are that it includes a door frame body, and the door frame body includes: a beam, which is placed on the upper side of the door frame body; columns, which are placed on both sides of the beam; a fireproof component, which is placed on the beam, and the fireproof component includes a water storage box and a mounting plate, and the water storage box is provided with a nozzle, and the nozzle is provided with a plastic sheet, and the mounting plate is connected to the beam through a connecting component; a reinforcement member, which is placed inside the beam and the column; wherein the mounting plate is provided with a through hole, and the nozzle passes through the through hole. The application provides a fireproof door frame with high structural strength, which can effectively prevent the spread of fire and improve fireproof performance. However, there is a problem that the plastic sheet on the nozzle is exposed to the outside and is easily forced to fall off, and the protective effect on the nozzle is not ideal. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a fireproof door frame, which solves the problem that the plastic sheet on the nozzle is exposed to the outside and is easily forced to fall off, and the protective effect on the nozzle is not ideal.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a fireproof door frame, comprising a frame body, a fireproof mechanism is provided on the frame body, and a fixing seat is fixedly connected to the fireproof mechanism;

[0006] The fire prevention mechanism includes a protective shell, the end of the protective shell is rotatably connected to a protective cover by a hinge, a storage groove is opened inside the protective shell, a guide rod is fixedly connected inside the protective shell, the end of the guide rod is fixedly connected to a limiting block, a return spring is provided on the guide rod, a fire extinguishing agent box is slidably connected to the guide rod, a nozzle with a plastic plug is installed on the fire extinguishing agent box, two connecting ropes are fixedly connected to the end of the fire extinguishing agent box, the bottom ends of the two connecting ropes are fixedly connected to a fixing block, the fixing block is fixedly installed on the frame, a heat conducting block is provided on one side of the fixing block, a thermal bimetallic strip is fixedly connected to the end of the thermal bimetallic strip, a cutter is fixedly connected to the end of the thermal bimetallic strip, and a protective frame is provided on the outside of the connecting rope.

[0007] Preferably, the protective shell is fixedly connected to the fixing base, the fixing base is detachably connected to the frame through a plurality of bolts, and the protective shell is installed on the top of the frame, so that the protective shell can be fixed and disassembled, thereby facilitating daily maintenance and overhaul.

[0008] Preferably, the top end of the protective cover is rotatably connected to the end of the protective shell by a hinge, the bottom end of the protective cover is set as a free end, and an adsorption magnet is provided at the bottom end of the protective cover, so that the protective cover can rotate, and the adsorption magnet can be used to adsorb and fix the protective cover to prevent foreign matter from entering the interior of the protective shell.

[0009] Preferably, one end of the return spring is fixedly connected to the inner wall of the protective shell, and the other end of the return spring is fixedly connected to the fire extinguishing agent box, so that the return spring can pop out the fire extinguishing agent box.

[0010] Preferably, the heat-conducting block is fixedly mounted on the protective frame, and the heat-conducting block is arranged outside the protective frame, so that the heat-conducting block on the outside can transfer heat to the thermal bimetallic strip.

[0011] Preferably, one end of the thermal bimetal strip is fixedly connected to the heat conductive block, the other end of the thermal bimetal strip is set as a free end, and the cutter is fixedly installed on the free end of the thermal bimetal strip, so that when the thermal bimetal strip is deformed, it can drive the cutter to cut the connecting rope.

[0012] Preferably, the protective frame includes a frame body, a plurality of fixing plates are fixedly connected to the end of the frame body, the plurality of fixing plates are each provided with a fixing hole, a plurality of insertion holes are opened on the frame body, the plurality of insertion holes match the fixing plates, and fixing screws are provided inside the fixing holes, so that the protective frame can be easily installed and disassembled.

[0013] The utility model provides a fireproof door frame. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The fireproof door frame transfers heat to the hot bimetallic strip through the heat transfer block. The hot bimetallic strip is deformed by the heat. The deformation of the hot bimetallic strip drives the cutter to move. The cutter cuts the connecting rope, pushes the nozzle out of the protective shell, and the fire extinguishing agent is sprayed out. When a fire occurs, the fire is extinguished. The fire can be kept inside the protective shell when not in use, thereby improving the protection effect of the nozzle.

[0015] 2. The fireproof door frame can be easily installed and disassembled by inserting the fixing plate into the socket and then screwing the fixing screw into the fixing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the fire protection structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the heat conduction block structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the protective frame structure of the utility model.

[0020] In the figure: 1. frame; 2. fire protection mechanism; 201. protective shell; 202. protective cover; 203. storage slot; 204. guide rod; 205. limit block; 206. return spring; 207. fire extinguisher box; 208. nozzle; 209. connecting rope; 210. fixing block; 211. thermal bimetallic strip; 212. cutter; 213. heat conductive block; 3. fixing seat; 4. protective frame; 401. frame; 402. fixing plate; 403. fixing hole; 404. fixing screw. 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] See also Figure 1-3 The utility model provides a technical solution: a fireproof door frame, including a frame 1, a fireproof mechanism 2 is provided on the frame 1, a fixing seat 3 is fixedly connected to the fireproof mechanism 2, and a fire can be extinguished by the fireproof mechanism 2 when a fire occurs, and the fireproof mechanism 2 can be placed inside a protective shell 201 when not in use, thereby improving the protection effect on the nozzle 208.

[0023] The fire protection mechanism 2 includes a protective shell 201, which is fixedly connected to a fixing seat 3, and the fixing seat 3 is detachably connected to the frame 1 through a plurality of bolts, and the protective shell 201 is installed on the top of the frame 1, so that the protective shell 201 can be fixed and disassembled, so that daily maintenance and inspection can be conveniently performed, and the end of the protective shell 201 is rotatably connected to a protective cover 202 through a hinge, and the top of the protective cover 202 is rotatably connected to the end of the protective shell 201 through a hinge, and the bottom end of the protective cover 202 is set as a free end, and an adsorption magnet is provided at the bottom end of the protective cover 202, so that the protective cover 202 can be rotated, and the adsorption magnet can be used to adsorb and fix the protective cover 202. , to prevent foreign matter from entering the protective shell 201, a storage groove 203 is opened inside the protective shell 201, a guide rod 204 is fixedly connected inside the protective shell 201, and a limited block 205 is fixedly connected to the end of the guide rod 204. A return spring 206 is provided on the guide rod 204, and one end of the return spring 206 is fixedly connected to the inner wall of the protective shell 201, and the other end of the return spring 206 is fixedly connected to the fire extinguishing agent box 207, so that the return spring 206 can pop out the fire extinguishing agent box 207, and the guide rod 204 is slidably connected with the fire extinguishing agent box 207. The fire extinguishing agent box 207 is filled with compressed gas, which can spray the fire extinguishing agent after the nozzle 208 is connected, so as to extinguish the fire. A nozzle 208 with a plastic plug is installed on the fire agent box 207, and the plastic plug can be used to seal the nozzle 208. After being heated and melted, the nozzle 208 is connected to the outside to spray the fire extinguishing agent. Two connecting ropes 209 are fixedly connected to the end of the fire extinguishing agent box 207. The bottom ends of the two connecting ropes 209 are fixedly connected to a fixed block 210. The fixed block 210 is fixedly installed on the frame 1. A heat-conducting block 213 is provided on one side of the fixed block 210. The heat-conducting block 213 is fixedly installed on the protective frame 4, and the heat-conducting block 213 is arranged on the outside of the protective frame 4, so that the heat-conducting block 213 on the outside can transfer heat to the hot bimetallic strip 211. The end of the heat-conducting block 213 is fixedly connected to the heat bimetallic strip 211. A thermal bimetallic strip 211 is connected. The thermal bimetallic strip 211 is a sheet made of two metals with different thermal expansion coefficients welded and rolled, so that it can be deformed when heated, thereby driving the cutter 212 to move. The end of the thermal bimetallic strip 211 is fixedly connected to the cutter 212, one end of the thermal bimetallic strip 211 is fixedly connected to the heat conductive block 213, and the other end of the thermal bimetallic strip 211 is set as a free end, and the cutter 212 is fixedly installed on the free end of the thermal bimetallic strip 211, so that when the thermal bimetallic strip 211 is deformed, it can drive the cutter 212 to cut off the connecting rope 209. A protective frame 4 is provided on the outside of the connecting rope 209, and the protective frame 4 can be used to protect the connecting rope 209.

[0024] See also Figure 2 and Figure 4The protective frame 4 includes a frame body 401, and a plurality of fixing plates 402 are fixedly connected to the end of the frame body 401. The plurality of fixing plates 402 are each provided with a fixing hole 403. A plurality of plug holes are opened on the frame body 1, and the plurality of plug holes match the fixing plates 402. A fixing screw 404 is provided inside the fixing hole 403. The fixing plate 402 can be inserted into the plug hole, and then the fixing screw 404 can be screwed into the fixing hole 403, so that the protective frame 4 can be easily installed and disassembled.

[0025] When working, the protective shell 201 and the protective cover 202 are used to protect the nozzle 208. When a fire occurs, the heat conductive block 213 is heated to transfer heat to the hot bimetallic strip 211. The hot bimetallic strip 211 is deformed by the heat. The deformation of the hot bimetallic strip 211 drives the cutter 212 to move. The cutter 212 cuts off the connecting rope 209, releases the constraint on the fire extinguishing agent box 207, and the reset spring 206 loses the constraint to push the fire extinguishing agent box 207 and the nozzle 208 with the plastic sheet out of the protective shell 201. After the plastic sheet is heated and melted, the nozzle 208 is connected to the outside world, and the fire extinguishing agent is sprayed out to extinguish the fire. When a fire occurs, the plastic sheet can be placed inside the protective shell 201 when not in use, thereby improving the protection effect on the nozzle 208.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A fireproof door frame, comprising a frame body (1), characterized in that: The frame (1) is provided with a fire protection mechanism (2), and a fixing seat (3) is fixedly connected to the fire protection mechanism (2); The fire protection mechanism (2) comprises a protective shell (201), the end of the protective shell (201) is rotatably connected to a protective cover (202) via a hinge, a storage groove (203) is provided inside the protective shell (201), a guide rod (204) is fixedly connected inside the protective shell (201), the end of the guide rod (204) is fixedly connected to a limit block (205), a return spring (206) is provided on the guide rod (204), a fire extinguishing agent box (207) is slidably connected to the guide rod (204), and a fire extinguishing agent box (207) is installed with a A spray head (208) is sealed with plastic, the end of the fire extinguishing agent box (207) is fixedly connected to two connecting ropes (209), the bottom ends of the two connecting ropes (209) are fixedly connected to a fixing block (210), the fixing block (210) is fixedly installed on a frame (1), a heat conducting block (213) is provided on one side of the fixing block (210), the end of the heat conducting block (213) is fixedly connected to a thermal bimetallic strip (211), the end of the thermal bimetallic strip (211) is fixedly connected to a cutter (212), and a protective frame (4) is provided on the outside of the connecting rope (209).

2. A fireproof door frame according to claim 1, characterized in that: The protective shell (201) is fixedly connected to the fixing seat (3), the fixing seat (3) is detachably connected to the frame (1) via a plurality of bolts, and the protective shell (201) is mounted on the top of the frame (1).

3. A fireproof door frame according to claim 1, characterized in that: The top end of the protective cover (202) is rotatably connected to the end of the protective shell (201) via a hinge, the bottom end of the protective cover (202) is arranged as a free end, and an adsorption magnet is arranged at the bottom end of the protective cover (202).

4. A fireproof door frame according to claim 1, characterized in that: One end of the return spring (206) is fixedly connected to the inner wall of the protective shell (201), and the other end of the return spring (206) is fixedly connected to the fire extinguishing agent box (207).

5. A fireproof door frame according to claim 1, characterized in that: The heat conducting block (213) is fixedly mounted on the protection frame (4), and the heat conducting block (213) is arranged outside the protection frame (4).

6. A fireproof door frame according to claim 1, characterized in that: One end of the thermal bimetallic strip (211) is fixedly connected to the heat conducting block (213), the other end of the thermal bimetallic strip (211) is arranged as a free end, and the cutter (212) is fixedly mounted on the free end of the thermal bimetallic strip (211).

7. A fireproof door frame according to claim 1, characterized in that: The protective frame (4) comprises a frame body (401), a plurality of fixing plates (402) are fixedly connected to the end of the frame body (401), and the plurality of fixing plates (402) are each provided with a fixing hole (403).

8. A fireproof door frame according to claim 7, characterized in that: The frame (1) is provided with a plurality of insertion holes, the plurality of insertion holes match the fixing plate (402), and a fixing screw (404) is provided inside the fixing hole (403).

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