Explosion-proof positive pressure room

Abstract

The utility model discloses an anti-explosion positive pressure room, which belongs to the technical field of anti-explosion equipment and comprises a positive pressure room body, a fire exit door is rotatably connected onto the side wall of the positive pressure room body, an anti-explosion window is fixedly connected onto the fire exit door, and an anti-explosion air feeder is fixedly connected above the positive pressure room body. When the inside and outside conditions of the positive pressure room body need to be observed through the explosion-proof window, a pull column is pulled towards the periphery of an external box, the pull column moves to drive a moving plate to move, the moving plate moves to drive a connecting spring to be compressed and a bearing rod to move away from a mounting box, and then a handle is held by a hand to apply force to drive a mounting rod to move. The mounting rod moves to drive the cleaning cotton cloth to move away from the mounting box, when the cleaning cotton cloth moves to pass through the explosion-proof window, the surface of the explosion-proof window can be cleaned, the cleanliness of the surface of the explosion-proof window is guaranteed, and then an operator can conveniently observe the inside and outside conditions of the positive pressure room through the explosion-proof window.

Description

Technical Field

[0001] This utility model belongs to the field of explosion-proof equipment technology, specifically relating to an explosion-proof positive pressure room. Background Technology

[0002] Explosion-proof positive pressure rooms, also known as explosion-proof positive pressure cabins, have gained popularity among many customers as society has developed. They are particularly widely used in online analytical testing systems. These rooms employ an all-steel frame structure, assembling analytical instruments and control units inside the room, while sample pretreatment, carrier gas, standard gas, and driving gas are installed on the outside.

[0003] Chinese Patent Application No. 201621464941.1 discloses a positive pressure explosion-proof room, which includes a positive pressure room body and a positive pressure room door connected to each other. The positive pressure room door includes a buffer room, a first entrance / exit, and a second entrance / exit. The buffer room is connected to the positive pressure room body. The first entrance / exit is located at the non-connecting part of the positive pressure room body and the buffer room, and the second entrance / exit is located at the connecting part of the positive pressure room body and the buffer room. The positive pressure explosion-proof room provided by this utility model is suitable for hazardous environments and can effectively solve the problem of the positive pressure value inside the positive pressure room being affected by external gases.

[0004] The aforementioned patent includes an explosion-proof window installed on the fire escape door, through which staff can observe the inside and outside of the positive pressure room. However, if dust adheres to the explosion-proof window and is not cleaned in time, it can easily affect the staff's normal observation. In addition, an explosion-proof air supply fan is installed above the positive pressure room. Dust and other impurities in the external environment can easily enter the positive pressure room under the action of the explosion-proof air supply fan, causing pollution to the internal environment of the positive pressure room. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides an explosion-proof positive pressure chamber that is easy to clean, remove impurities, and filter dust.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof positive pressure room, comprising a positive pressure room body, a fire door rotatably connected to the side wall of the positive pressure room body, an explosion-proof window fixedly connected to the fire door, an explosion-proof blower fixedly connected to the top of the positive pressure room body, a cleaning component provided on the side wall of the fire door and above the explosion-proof window, and a dustproof component provided above the positive pressure room body and around the explosion-proof blower.

[0007] Preferably, the cleaning assembly includes a mounting box, a handle, a through hole, a mounting rod, a carrier, and a cleaning cloth. The mounting box is fixedly connected to the side wall of the fire door and above the explosion-proof window. The mounting rod is inserted into the inside of the mounting box. The cleaning cloth is fixedly connected to the side wall of the mounting rod. A handle is fixedly connected to one end of the mounting rod. A through hole is provided on the mounting box at the position corresponding to the handle. A carrier is provided between the mounting box and the mounting rod.

[0008] Preferably, the support component includes an outer box, a pull column, a connecting spring, a movable plate, and a support rod. The outer box is fixedly connected to the outer side wall of the mounting box, and the movable plate is slidably connected inside the outer box. A connecting spring connects the outer box and the movable plate. A pull column is fixedly connected to one side of the movable plate, and a support rod is fixedly connected to the other side of the movable plate.

[0009] Preferably, strong magnetic strips are fixedly connected to the sides of the mounting box and the mounting rod that are close to each other.

[0010] Preferably, the dustproof assembly includes a dustproof cover, a fastener, a dustproof net, a connecting flange, and an air supply pipe. Dustproof covers are slidably connected to both sides of the positive pressure room body and the outer periphery of the explosion-proof air supply fan. A fastener is provided between the two dustproof covers. A dustproof net is fixedly connected inside the dustproof cover. An air supply pipe is fixedly connected to the side wall of the dustproof cover. A connecting flange is fixedly connected to the outer wall of one end of the air supply pipe.

[0011] Preferably, the fastener includes a first end plate, a through hole, a second end plate, a fixing screw, and a fixing nut. The first end plate is fixedly connected to the top of one of the dust covers, and the first end plate has a through hole. The second end plate is fixedly connected to the top of the other dust cover at a position corresponding to the first end plate. A fixing screw is fixedly connected to the side wall of the second end plate, and a fixing nut is threaded onto the outer side wall of the fixing screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model is equipped with a cleaning component. When it is necessary to observe the internal and external conditions of the positive pressure room through the explosion-proof window, the pull column is pulled outward to the outer perimeter of the outer junction box. The movement of the pull column causes the moving plate to move, which in turn causes the connecting spring to compress and the bearing rod to move away from the mounting box. Then, the handle is squeezed to apply force to move the mounting rod. The movement of the mounting rod causes the cleaning cloth to move away from the mounting box. When the cleaning cloth moves past the explosion-proof window, the surface of the explosion-proof window can be cleaned to ensure the cleanliness of the explosion-proof window surface, thereby facilitating the operator to observe the internal and external conditions of the positive pressure room through the explosion-proof window.

[0014] 2. This utility model is equipped with a dustproof component. The fixing nut is removed by rotating the fixing screw, and then the two dustproof covers are moved and fitted together. At this time, the fixing screw on the second end plate moves through the through hole on the first end plate. The fixing nut is then rotated and screwed onto the fixing screw, making it fit against the side wall of the first end plate. The cooperation of the fixing screw and the fixing nut allows for the fixing of the first and second end plates, thereby fixing the two dustproof covers. The dustproof net can then be installed around the explosion-proof blower. During the subsequent operation of the explosion-proof blower, the dustproof net prevents dust and other impurities from the external environment from entering the positive pressure chamber, thus preventing pollution of the internal environment of the positive pressure chamber. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle;

[0018] Figure 4 This is a structural diagram showing the connection of the two dustproof covers of this utility model;

[0019] Figure 5 This is a cross-sectional view of the mounting box of this utility model;

[0020] Figure 6 This utility model Figure 5 Enlarged view of point C in the middle;

[0021] Figure 7 This is a cross-sectional view of the mounting rod of this utility model.

[0022] In the diagram: 1. Positive pressure chamber body; 2. Dustproof components; 21. Dustproof cover; 22. Fixing component; 221. First end plate; 222. Through hole; 223. Second end plate; 224. Fixing screw; 225. Fixing nut; 23. Dustproof net; 24. Connecting flange; 25. Air supply duct; 3. Explosion-proof air supply fan; 4. Cleaning components; 41. Mounting box; 42. Handle; 43. Through hole; 44. Mounting rod; 45. Bearing component; 451. External junction box; 452. Tie column; 453. Connecting spring; 454. Moving plate; 455. Bearing rod; 46. Cleaning cloth; 5. Explosion-proof window; 6. Fire door. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Please see Figure 1-7 The present invention provides the following technical solution: an explosion-proof positive pressure room, including a positive pressure room body 1, a fire door 6 rotatably connected to the side wall of the positive pressure room body 1, an explosion-proof window 5 fixedly connected to the fire door 6, an explosion-proof blower 3 fixedly connected to the top of the positive pressure room body 1, a cleaning component 4 provided on the side wall of the fire door 6 and above the explosion-proof window 5, and a dustproof component 2 provided above the positive pressure room body 1 and around the explosion-proof blower 3.

[0026] Specifically, the cleaning component 4 includes a mounting box 41, a handle 42, a through hole 43, a mounting rod 44, a support member 45, and a cleaning cloth 46. The mounting box 41 is fixedly connected to the side wall of the fire door 6, above the explosion-proof window 5. The mounting rod 44 is inserted into the inside of the mounting box 41. A cleaning cloth 46 is fixedly connected to the side wall of the mounting rod 44. A handle 42 is fixedly connected to one end of the mounting rod 44. A through hole 43 is provided on the mounting box 41 at the position corresponding to the handle 42. A support member 45 is provided between the mounting box 41 and the mounting rod 44.

[0027] By adopting the above technical solution, when cleaning the explosion-proof window 5 is required, the load-bearing component 45 is released from its support on the mounting rod 44. Then, the handle 42 is held to apply force to move the mounting rod 44. The movement of the mounting rod 44 causes the cleaning cloth 46 to move away from the mounting box 41. When the cleaning cloth 46 moves past the explosion-proof window 5, the surface of the explosion-proof window 5 can be cleaned to ensure the cleanliness of the surface of the explosion-proof window 5. This makes it easier for operators to observe the inside and outside of the positive pressure room 1 through the explosion-proof window 5.

[0028] Specifically, the support component 45 includes an outer box 451, a pull column 452, a connecting spring 453, a movable plate 454, and a support rod 455. The outer box 451 is fixedly connected to the outer wall of the mounting box 41. The movable plate 454 is slidably connected inside the outer box 451. The connecting spring 453 connects the outer box 451 and the movable plate 454. The pull column 452 is fixedly connected to one side of the movable plate 454, and the support rod 455 is fixedly connected to the other side of the movable plate 454.

[0029] By adopting the above technical solution, the pull column 452 is pulled to the periphery of the outer box 451. The movement of the pull column 452 causes the moving plate 454 to move. The movement of the moving plate 454 causes the connecting spring 453 to compress and the bearing rod 455 to move away from the mounting box 41, thereby relieving the bearing support effect of the bearing rod 455 on the mounting rod 44.

[0030] Specifically, strong magnetic strips are fixedly connected to the sides of the mounting box 41 and the mounting rod 44 that are close to each other.

[0031] By adopting the above technical solution, after the mounting rod 44 is moved and retracted into the mounting box 41, the two strong magnetic strips attract and fix each other, thereby limiting and fixing the mounting rod 44 and ensuring the stability of the mounting rod 44 and the mounting box 41.

[0032] In this embodiment, during operation, staff can use the explosion-proof blower 3 to supply gas into the positive pressure room 1 to ensure that the internal environment of the positive pressure room 1 is in a normal state. When it is necessary to observe the inside and outside of the positive pressure room 1 through the explosion-proof window 5, the pull column 452 is pulled to the outside of the outer junction box 451. The movement of the pull column 452 causes the moving plate 454 to move. The movement of the moving plate 454 causes the connecting spring 453 to compress and the bearing rod 455 to move away from the mounting box 41. Then, the handle 42 is held to apply force to move the mounting rod 44. The movement of the mounting rod 44 causes the cleaning cloth 46 to move away from the mounting box 41. When the cleaning cloth 46 moves past the explosion-proof window 5, the surface of the explosion-proof window 5 can be cleaned to ensure the cleanliness of the surface of the explosion-proof window 5. This makes it easier for operators to observe the inside and outside of the positive pressure room 1 through the explosion-proof window 5. In case of danger, the staff inside the positive pressure room 1 can escape through the fire door 6.

[0033] Example 2

[0034] The difference between this embodiment and Embodiment 1 is that the dustproof assembly 2 includes a dustproof cover 21, a fixing member 22, a dustproof net 23, a connecting flange 24, and an air supply duct 25. Dustproof covers 21 are slidably connected to both sides of the positive pressure chamber body 1 and the periphery of the explosion-proof air supply fan 3. A fixing member 22 is provided between two dustproof covers 21. A dustproof net 23 is fixedly connected inside the dustproof cover 21. An air supply duct 25 is fixedly connected to the side wall of the dustproof cover 21, and a connecting flange 24 is fixedly connected to the outer side wall of one end of the air supply duct 25.

[0035] Specifically, the fastener 22 includes a first end plate 221, a through hole 222, a second end plate 223, a fixing screw 224, and a fixing nut 225. The first end plate 221 is fixedly connected to the top of one dust cover 21, and the first end plate 221 has a through hole 222. The second end plate 223 is fixedly connected to the top of the other dust cover 21 at a position corresponding to the first end plate 221. A fixing screw 224 is fixedly connected to the side wall of the second end plate 223, and a fixing nut 225 is threaded onto the outer side wall of the fixing screw 224.

[0036] By adopting the above technical solution, the fixing nut 225 is removed by rotating the fixing screw 224, and then the two dust covers 21 are moved and fitted together. At this time, the fixing screw 224 on the second end plate 223 moves through the through hole 222 on the first end plate 221, and then the fixing nut 225 is rotated and screwed onto the fixing screw 224, and made to fit against the side wall of the first end plate 221. By using the cooperation of the fixing screw 224 and the fixing nut 225, the fixing operation of the first end plate 221 and the second end plate 223 can be realized, thereby realizing the fixing operation of the two dust covers 21.

[0037] In this embodiment, the fixing nut 225 is removed by rotating the fixing screw 224, and then the two dust covers 21 are moved and fitted together. At this time, the fixing screw 224 on the second end plate 223 moves through the through hole 222 on the first end plate 221, and then the fixing nut 225 is rotated and screwed onto the fixing screw 224, so that it fits against the side wall of the first end plate 221. By using the cooperation of the fixing screw 224 and the fixing nut 225, the first end plate 221 and the second end plate 223 can be fixed, and the two dust covers 21 can be fixed. Then the dust net 23 can be installed on the periphery of the explosion-proof blower 3. During the subsequent operation of the explosion-proof blower 3, the dust net 23 can prevent dust and other impurities in the external environment from entering the positive pressure room 1, and prevent the internal environment of the positive pressure room 1 from being polluted.

[0038] The working principle and usage process of this utility model are as follows: The fixing nut 225 is removed by rotating the fixing screw 224, and then the two dust covers 21 are moved and fitted together. At this time, the fixing screw 224 on the second end plate 223 moves through the through hole 222 on the first end plate 221. The fixing nut 225 is then rotated and screwed onto the fixing screw 224, making it fit against the side wall of the first end plate 221. Using the cooperation of the fixing screw 224 and the fixing nut 225, the first end plate 221 and the second end plate 223 can be fixed, thereby fixing the two dust covers 21. The dustproof net 23 can then be installed around the explosion-proof blower 3. During operation, the explosion-proof blower 3 can supply gas into the positive pressure chamber 1. The dustproof net 23 prevents dust and other impurities from the external environment from entering the positive pressure chamber. 1. To prevent contamination of the internal environment of the positive pressure room 1 and ensure its normal operation, when it is necessary to observe the internal and external conditions of the positive pressure room 1 through the explosion-proof window 5, pull the pull column 452 outward to the periphery of the outer junction box 451. The movement of the pull column 452 causes the moving plate 454 to move, which in turn causes the connecting spring 453 to compress and the load-bearing rod 455 to move away from the mounting box 41. Then, hold the handle 42 and apply force to move the mounting rod 44. The movement of the mounting rod 44 causes the cleaning cloth 46 to move away from the mounting box 41. When the cleaning cloth 46 moves past the explosion-proof window 5, the surface of the explosion-proof window 5 can be cleaned to ensure its cleanliness, thus facilitating the operation of personnel to observe the internal and external conditions of the positive pressure room 1 through the explosion-proof window 5. In case of danger, the personnel inside the positive pressure room 1 can escape through the fire door 6.

[0039] 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. An explosion-proof positive pressure room, comprising a positive pressure room body (1), wherein a fire door (6) is rotatably connected to the side wall of the positive pressure room body (1), an explosion-proof window (5) is fixedly connected to the fire door (6), and an explosion-proof blower (3) is fixedly connected to the top of the positive pressure room body (1), characterized in that: A cleaning component (4) is installed on the side wall of the fire door (6) and above the explosion-proof window (5), and a dustproof component (2) is installed above the positive pressure room body (1) and around the explosion-proof blower (3).

2. The explosion-proof positive pressure room according to claim 1, characterized in that: The cleaning component (4) includes a mounting box (41), a handle (42), a through hole (43), a mounting rod (44), a carrier (45), and a cleaning cloth (46). The mounting box (41) is fixedly connected to the side wall of the fire door (6) and above the explosion-proof window (5). The mounting rod (44) is inserted into the inside of the mounting box (41). The cleaning cloth (46) is fixedly connected to the side wall of the mounting rod (44). The handle (42) is fixedly connected to one end of the mounting rod (44). The through hole (43) is opened on the mounting box (41) at the position corresponding to the handle (42). The carrier (45) is provided between the mounting box (41) and the mounting rod (44).

3. The explosion-proof positive pressure room according to claim 2, characterized in that: The support member (45) includes an outer box (451), a pull column (452), a connecting spring (453), a movable plate (454), and a support rod (455). The outer box (451) is fixedly connected to the outer side wall of the mounting box (41). The movable plate (454) is slidably connected inside the outer box (451). The connecting spring (453) is connected between the outer box (451) and the movable plate (454). The pull column (452) is fixedly connected to one side of the movable plate (454), and the support rod (455) is fixedly connected to the other side of the movable plate (454).

4. The explosion-proof positive pressure room according to claim 2, characterized in that: Strong magnetic strips are fixedly connected to the sides of the mounting box (41) and the mounting rod (44) that are close to each other.

5. The explosion-proof positive pressure room according to claim 1, characterized in that: The dustproof assembly (2) includes a dustproof cover (21), a fastener (22), a dustproof net (23), a connecting flange (24), and an air supply pipe (25). The dustproof cover (21) is slidably connected to both sides of the positive pressure room body (1) and the outer periphery of the explosion-proof blower (3). A fastener (22) is provided between the two dustproof covers (21). A dustproof net (23) is fixedly connected inside the dustproof cover (21). An air supply pipe (25) is fixedly connected to the side wall of the dustproof cover (21). A connecting flange (24) is fixedly connected to the outer side wall of one end of the air supply pipe (25).

6. The explosion-proof positive pressure room according to claim 5, characterized in that: The fastener (22) includes a first end plate (221), a through hole (222), a second end plate (223), a fixing screw (224), and a fixing nut (225). The first end plate (221) is fixedly connected to the top of one of the dust covers (21), and the first end plate (221) has a through hole (222). The second end plate (223) is fixedly connected to the top of the other dust cover (21) at the position corresponding to the first end plate (221). The fixing screw (224) is fixedly connected to the side wall of the second end plate (223), and the fixing nut (225) is threaded onto the outer side wall of the fixing screw (224).

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