Coal mine underground fireproof polyvinyl chloride plate

Abstract

The utility model belongs to coal mine well fireproof door technical field, concretely relates to a coal mine underground fireproof polyvinyl chloride plate material, including the top crossbeam of embedding in the concrete wall of coal mine, door frame and door board, and the door frame is connected the top crossbeam through bolt fixing, and the door board is set up and is hinged with the door frame through the hinge, still including door closer and limiting component, and the door closer is symmetrically set up in the both ends of top crossbeam, and the door closer machine body is installed between the top crossbeam and the door board through screw, and the limiting component is symmetrically set up in the both ends of top crossbeam, and the limiting component is detachably connected in the lifting belt of hoisting equipment, and the limiting component is the U type limiting block of fixed connection top crossbeam, and the utility model has the advantages that: the lifting belt in hoisting equipment is effectively limited by limiting component, and the risk of slipping and falling in the hoisting process of plate material is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of fireproof doors for coal mines, specifically to a fireproof polyvinyl chloride sheet for underground coal mines. Background Technology

[0002] Mine fire doors are safety devices used to prevent the spread of underground fires and control airflow. Constructing fire doors is an effective measure to isolate fire smoke in coal mines, prevent the spread of fire, and thus reduce casualties. These doors are normally open and can be closed when necessary. They can block airflow and smoke, and also act as firewalls, facilitating fire control and isolating fire zones.

[0003] Existing mine fire doors mainly consist of a top beam, door frame, door leaf, fireproof materials, and locks. When using lifting equipment to hoist the door, slings are typically symmetrically tied to the portion of the top beam extending into the door frame. However, this method of tying requires a high degree of load balance; if the slings become loose or the load is uneven, the door can easily slip and fall, posing a safety hazard. Utility Model Content

[0004] This utility model addresses the problems mentioned above by specifically designing a fireproof polyvinyl chloride (PVC) sheet for underground coal mines. It utilizes a limiting component to effectively limit the slings in the lifting equipment, reducing the risk of slippage and falling during the lifting process.

[0005] To achieve the above objectives, this utility model provides a fireproof polyvinyl chloride (PVC) sheet for underground coal mines, comprising a top beam, a door frame, and a door panel embedded in the concrete wall of the coal mine. The door frame is fixedly connected to the top beam by bolts, and the door panel is hinged to the door frame via hinges. It also includes a door closer and a limiting assembly. The door closer is symmetrically arranged at both ends of the top beam, and the door closer body is installed between the top beam and the door panel by screws. The limiting assembly is symmetrically arranged at both ends of the top beam, and the limiting assembly is detachably connected to a lifting sling in a hoisting device.

[0006] Preferably, the limiting component is a U-shaped limiting block that is fixedly connected to the top crossbeam.

[0007] Furthermore, the door panel has an observation hole, and the observation hole is covered with an observation window.

[0008] Furthermore, the edge of the observation window is detachably connected to the door panel via a pressure strip and screws, and the pressure strip has a frame structure.

[0009] Preferably, a fire-resistant rubber baffle is installed between the observation window and the pressure strip.

[0010] Furthermore, a protective cover is fixedly connected to one side of the door frame, and a cleaning component is installed inside the protective cover.

[0011] Furthermore, the cleaning assembly includes a water pump, an inlet pipe, a flexible outlet pipe, and a handheld nozzle. The inlet of the water pump is connected to a housing through the inlet pipe. The housing is filled with cleaning fluid, and the housing is fixedly connected to the concrete wall through a support frame and a load-bearing plate. The outlet of the water pump is connected to the nozzle through the flexible outlet pipe.

[0012] Furthermore, a take-up roller is rotatably connected inside the protective cover, and the flexible water outlet pipe is wound around the take-up roller.

[0013] Furthermore, a hook is fixedly connected inside the protective cover, and the nozzle is hung on the hook.

[0014] Furthermore, the door panel includes several polyvinyl chloride fireproof boards, and adjacent fireproof boards are connected by slots and blocks.

[0015] In summary, this utility model has the following advantages and beneficial technical effects:

[0016] 1. This utility model sets limiting components at the four corners of the top crossbeam. Before lifting, both ends of the sling pass through the limiting blocks respectively. The limiting blocks are used to effectively limit the sling in the lifting equipment, reducing the risk of slippage and falling during the lifting of the plate.

[0017] 2. This utility model features an observation window, allowing mine workers to easily observe and confirm the status of safety passages, thus preventing secondary injuries caused by blind escape during a fire. A retaining strip is secured to the edge of the observation window to ensure its stability. Simultaneously, the tight fit between the retaining strip and the fire-resistant rubber baffle forms a sealing layer, preventing toxic fumes from entering the interior environment through edge gaps after a fire.

[0018] 3. This utility model includes a cleaning component. A water pump draws cleaning fluid from the tank, which is then sprayed through nozzles onto the observation window. Water pressure is used to clean and remove dirt from the surface of the observation window. A winding roller is used for the regular winding and unwinding of the flexible water outlet pipe to prevent damage to the water path. Hooks are used to hang and support the nozzles. A protective cover is used to enclose the cleaning component, providing dust protection.

[0019] 4. The door panel of this utility model is made of several polyvinyl chloride fireproof boards spliced ​​together, which is convenient for disassembly and replacement after individual fireproof boards are damaged, thus saving production and maintenance costs. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is a front view schematic diagram of the protective cover opening in this utility model;

[0023] Figure 3 This is a three-dimensional schematic diagram of some structures in this utility model;

[0024] Figure 4 This is a three-dimensional schematic diagram of the cleaning component in this utility model.

[0025] The reference numerals in the attached figures are:

[0026] 1. Top beam; 2. Door frame; 3. Door panel; 4. Hinge; 5. Limiting block; 6. Observation window; 7. Pressure strip; 8. Protective cover;

[0027] 9. Cleaning components; 91. Water pump; 92. Inlet pipe; 93. Flexible outlet pipe; 94. Nozzle; 95. Housing; 96. Support frame; 97. Loading plate; 98. Take-up roller; 99. Hook; 10. Concrete wall. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail as follows:

[0029] like Figure 1 As shown, this embodiment discloses a fireproof polyvinyl chloride (PVC) sheet for underground coal mines, including a top beam 1, a door frame 2, and a door panel 3 embedded in a concrete wall 10 of the coal mine. The top beam 1 is fixedly connected to the concrete wall 10 by expansion bolts, the door frame 2 is connected to the top beam 1 by bolts, and the door panel 3 is configured to open in half and is hinged to the door frame 2 by hinges 4. It also includes a door closer and a limiting component. In this embodiment, there are two sets of door closers, symmetrically arranged at both ends of the top beam 1. The door closer body is installed between the top beam 1 and the door panel 3 by screws. The structure and installation method of the door closer are existing technologies and will not be described in detail here. The limiting component is symmetrically arranged at both ends of the top beam 1 and can be detachably connected to the lifting straps in the lifting equipment. The limiting component is a U-shaped limiting block 5 welded and fixed to the top beam 1. The door panel 3 has an observation hole, which is covered by an observation window 6, preferably transparent fireproof glass. Both edges of the observation window 6 are fitted with pressure strips 7, which have a frame structure and are connected to the door panel 3 by screws. A fire-resistant rubber baffle for sealing and blocking smoke is installed between the observation window 6 and the pressure strips 7.

[0030] like Figures 1-2 as well as Figure 4As shown, a protective cover 8 is fixedly connected to one side of the door frame 2. The protective cover 8 has a hollow structure and a hinged inspection window. A cleaning assembly 9 is installed inside the hollow structure. The cleaning assembly 9 includes a water pump 91, an inlet pipe 92, a flexible outlet pipe 93, and a handheld nozzle 94. The inlet of the water pump 91 is connected to a housing 95 through the inlet pipe 92. The housing 95 is filled with cleaning fluid. A right-angle support frame 96 is also fixedly connected to the concrete wall 10 by expansion bolts. The housing 95 is supported on the support frame 96 by a bearing plate 97. The outlet of the water pump 91 is connected to the nozzle 94 through the flexible outlet pipe 93. A take-up roller 98 is rotatably connected inside the protective cover 8 through a bearing seat and a rotating shaft. The take-up roller 98 has a tapered structure in the middle, and the flexible outlet pipe 93 is wound around the outer circumference of the take-up roller 98. A hook 99 is welded inside the protective cover 8, and the nozzle 94 is hung on the hook 99.

[0031] like Figure 3 As shown, door panel 3 comprises several assembled polyvinyl chloride fireproof boards, with adjacent fireproof boards connected by slots and blocks.

[0032] The working principle of this utility model of a fireproof polyvinyl chloride sheet for underground coal mines is as follows:

[0033] When hoisting the sheet metal, the two slings of the hoisting equipment are passed through the limiting blocks 5 on both sides of the top crossbeam 1. The limiting blocks 5 are used to horizontally limit the slings, thereby preventing the sheet metal from slipping due to loose slings or uneven load. In coal mines, there are particulate impurities generated during mining and transportation, including coal dust, rock dust, and other solid particles. When the surface of the observation window 6 is covered with impurities, causing a decrease in transparency, the miner opens the maintenance window of the protective cover 8, removes the nozzle 94 from the hook 99, and pulls the flexible water outlet pipe 93 connected to the nozzle 94 from the take-up roller 98. The take-up roller 98 rotates naturally as the flexible water outlet pipe 93 is pulled out. After unwinding the pipe, the water pump 91 is started to pump out the cleaning fluid from the tank 95 and spray it onto the observation window 6 through the nozzle 94, ultimately removing the deposits from the surface of the observation window 6. The worker wipes the surface of the observation window 6 with a soft towel, then hangs the flexible water outlet pipe 93 and the nozzle 94 back into the protective cover 8, completing the cleaning work.

[0034] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A fireproof polyvinyl chloride (PVC) panel for underground coal mines, comprising a top beam, a door frame, and a door panel embedded in the concrete wall of the coal mine, characterized in that: The door frame is fixedly connected to the top beam by bolts, and the door panel is split open and hinged to the door frame by hinges; it also includes a door closer and a limiting assembly. The door closer is symmetrically arranged at both ends of the top beam, and the door closer body is installed between the top beam and the door panel by screws. The limiting assembly is symmetrically arranged at both ends of the top beam, and the limiting assembly is detachably connected to the lifting sling in the lifting equipment.

2. The fireproof polyvinyl chloride sheet for underground coal mines according to claim 1, characterized in that: The limiting component is a U-shaped limiting block that is fixedly connected to the top crossbeam.

3. The fireproof polyvinyl chloride sheet for underground coal mines according to claim 1, characterized in that: The door panel has an observation hole, and the observation hole is covered by an observation window.

4. The fireproof polyvinyl chloride sheet for underground coal mines according to claim 3, characterized in that: The edge of the observation window is detachably connected to the door panel via a pressure strip and screws, and the pressure strip has a frame structure.

5. A fireproof polyvinyl chloride sheet for underground coal mines according to claim 4, characterized in that: A fire-resistant rubber baffle is installed between the observation window and the pressure strip.

6. The fireproof polyvinyl chloride sheet for underground coal mines according to claim 3, characterized in that: A protective cover is fixedly connected to one side of the door frame, and a cleaning component is installed inside the protective cover.

7. A fireproof polyvinyl chloride sheet for underground coal mines according to claim 6, characterized in that: The cleaning assembly includes a water pump, an inlet pipe, a flexible outlet pipe, and a handheld nozzle. The water pump inlet is connected to a housing via the inlet pipe. The housing is filled with cleaning fluid, and the housing is fixedly connected to the concrete wall via a support frame and a load-bearing plate. The water pump outlet is connected to the nozzle via the flexible outlet pipe.

8. The fireproof polyvinyl chloride sheet for underground coal mines according to claim 7, characterized in that: A take-up roller is rotatably connected inside the protective cover, and the flexible water outlet pipe is wound around the take-up roller.

9. A fireproof polyvinyl chloride sheet for underground coal mines according to claim 7, characterized in that: A hook is fixedly connected inside the protective cover, and the nozzle is hung on the hook.

10. A fireproof polyvinyl chloride sheet for underground coal mines according to claim 1, characterized in that: The door panel includes several polyvinyl chloride fireproof boards, and adjacent fireproof boards are connected by slots and blocks.

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