Positive pressure ventilation explosion-proof cabinet

Abstract

The utility model relates to the technical field of explosion-proof cabinets, and discloses a positive pressure ventilation explosion-proof cabinet, which comprises a cabinet body, a fixing mechanism is fixedly arranged in the cabinet body, and a fire extinguishing mechanism is fixedly arranged on the top surface of the cabinet body; the fixing mechanism comprises a fixing part and a connecting part. The side face of the fixing part is fixedly connected with the side face of the connecting part. The fixing part comprises a cabinet door, the side face of the cabinet door makes sealed contact with the inner wall of the cabinet body, and the left side face of the cabinet door is hinged to the inner wall of the cabinet body through a hinge rod. The fire extinguishing mechanism comprises a fire extinguishing part and a pressure relief part; the bottom surface of the fire extinguishing part is fixedly connected with the top surface of the pressure relief part; the fire extinguishing part comprises a fire extinguishing tank. The fire extinguishing mechanism is arranged, and the fire extinguishing tank and the communicating pipe are arranged to work cooperatively, so that when flammable and explosive articles are placed in the cabinet body and fire occurs due to improper pressure control, fire extinguishing substances can be quickly sprayed out through an output pipeline, the fire is controlled in time, and the placing safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof cabinets, in particular to a positive pressure ventilation explosion-proof cabinet. Background Art

[0002] An explosion-proof cabinet is a special cabinet used to store and protect flammable and explosive items. It has explosion-proof, fire-proof, and corrosion-proof functions. It can effectively reduce or prevent the occurrence of explosion accidents and safely manage stored items.

[0003] A Chinese patent discloses a positive pressure ventilation explosion-proof cabinet, with publication number CN217985607U, comprising a main cabinet and a control box; a cabinet door is installed on the main cabinet, at least one mounting plate is installed inside the main cabinet, a plurality of main cabinet lower sealing joints are installed on the bottom wall of the main cabinet, and a plurality of main cabinet side sealing joints are installed on the side wall. The cabinet has a compact structure, a strong ability to control the ambient air pressure inside the cabinet, and a good explosion-proof effect.

[0004] However, there are still the following disadvantages: when the positive pressure ventilation explosion-proof cabinet is used to place flammable items, if the pressure is not well controlled and a fire problem occurs, the flammable items cannot be quickly handled in the first time, so a positive pressure ventilation explosion-proof cabinet is designed. Utility Model Content

[0005] The utility model aims to provide a positive pressure ventilation explosion-proof cabinet to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a positive pressure ventilation explosion-proof cabinet comprises a cabinet body, a fixing mechanism is fixedly arranged inside the cabinet body, and a fire extinguishing mechanism is fixedly arranged on the top surface of the cabinet body;

[0007] The fixing mechanism comprises a fixing portion and a connecting portion, and a side surface of the fixing portion is fixedly connected to a side surface of the connecting portion;

[0008] The fixing part comprises a cabinet door, the side surface of the cabinet door is in sealing contact with the inner wall of the cabinet, and the left side surface of the cabinet door and the inner wall of the cabinet are hingedly connected by a hinge rod;

[0009] The fire extinguishing mechanism comprises a fire extinguishing part and a pressure relief part, and the bottom surface of the fire extinguishing part and the top surface of the pressure relief part are fixedly connected;

[0010] The fire extinguishing part comprises a fire extinguishing tank, a connecting pipe is fixedly provided on the front end surface of the fire extinguishing tank, and the bottom end surface of the connecting pipe is fixedly connected to the inner wall of the cabinet.

[0011] Preferably, universal wheels are fixedly provided on the bottom surface of the cabinet body, the number of the universal wheels is four and they are evenly distributed around the bottom surface of the cabinet body, a handle is fixedly provided on the front right end of the cabinet door, and an observation window is fixedly provided on the inner wall of the cabinet door.

[0012] Preferably, a placement rack is fixedly provided on the inner wall of the cabinet, an electrical connection component is fixedly provided on the front of the cabinet, a heat dissipation window is fixedly provided on the inner wall of the back end of the cabinet, and two connection blocks are fixedly provided on the front of the upper and lower ends of the cabinet respectively.

[0013] Preferably, a clamping rod is provided on the inner wall of the connecting block, the clamping rod surface and the inner wall of the connecting block are rotatably connected by a bearing, a sliding block is provided on the inner wall of the cabinet door, the side surface of the sliding block is frictionally and slidably connected to the inner wall of the cabinet door, and a ring is fixedly provided on the front of the sliding block.

[0014] Preferably, the inner wall of the ferrule and the surface of the clamping rod are frictionally engaged, a fixing nut is threadedly sleeved on the surface of the clamping rod, a pressure reducing pump is fixedly arranged on the bottom surface of the inner part of the cabinet, an absorption tube is fixedly arranged on the front side of the pressure reducing pump, and the surface of the absorption tube is fixedly connected to the inner wall of the cabinet.

[0015] Preferably, an output pipe is fixedly provided on the back end surface of the pressure reducing pump, the surface of the output pipe is fixedly connected to the inner wall of the cabinet, a pressure gauge is fixedly provided on the inner wall of the cabinet, and an output pipeline is fixedly provided on the bottom surface of the connecting pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The positive pressure ventilation explosion-proof cabinet is equipped with a fire extinguishing mechanism, and the fire extinguishing tank and the connecting pipe work together. When flammable and explosive items are placed inside the cabinet, if a fire occurs due to improper pressure control, the fire extinguishing material can be quickly sprayed out through the output pipe to control the fire in time, thereby improving the safety of placement;

[0018] 2. The positive pressure ventilation explosion-proof cabinet is equipped with a pressure reducing pump and a pressure gauge to work together. When the high-power electrical drive equipment inside the cabinet generates a lot of heat during operation, it cannot dissipate the heat, causing the temperature inside the cabinet to be too high and the pressure inside the cabinet to be too high. The pressure gauge can be used to observe in time, and the pressure can be relieved through the pressure reducing pump to improve safety;

[0019] 3. The positive pressure ventilation explosion-proof cabinet is provided with a fixing mechanism, and the cooperation of the clamping rod and the ring is provided, so that when the cabinet door is closed along the hinge rod, the cabinet door can be quickly fixed by the connection method of the clamping rod and the ring, so that the flammable and explosive items placed on the storage rack will not be taken out frequently, thereby improving the safety of placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the front structure of the utility model;

[0021] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the front structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the back structure of the utility model;

[0023] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the right side structure of the utility model;

[0024] Figure 5 For this utility model Figure 1 A three-dimensional enlarged schematic diagram of the structure of area A in the middle.

[0025] In the figure: 1. cabinet body; 2. fixing mechanism; 201. universal wheel; 202. cabinet door; 203. handle; 204. observation window; 205. placement rack; 206. electrical connection assembly; 207. heat dissipation window; 208. connecting block; 209. clamping rod; 210. slider; 211. ring; 3. fire extinguishing mechanism; 301. pressure reducing pump; 302. absorption tube; 303. output tube; 304. pressure gauge; 305. fire extinguishing tank; 306. connecting tube; 307. output pipeline. DETAILED DESCRIPTION

[0026] 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.

[0027] Embodiment 1

[0028] See also Figure 1-Figure 5 As shown, a positive pressure ventilation explosion-proof cabinet comprises a cabinet body 1, a fixing mechanism 2 is fixedly arranged inside the cabinet body 1, and a fire extinguishing mechanism 3 is fixedly arranged on the top surface of the cabinet body 1; the fixing mechanism 2 comprises a fixing part and a connecting part, and the side surface of the fixing part is fixedly connected to the side surface of the connecting part; the fixing part comprises a cabinet door 202, the side surface of the cabinet door 202 is in sealing contact with the inner wall of the cabinet body 1, and the left side surface of the cabinet door 202 and the inner wall of the cabinet body 1 are hinged by a hinge rod; the fire extinguishing mechanism 3 comprises a fire extinguishing part and a pressure relief part, and the bottom surface of the fire extinguishing part and the top surface of the pressure relief part are fixedly connected; the fire extinguishing part comprises a fire extinguishing tank 305, a feeding pipe is arranged on the top of the fire extinguishing tank 305, a connecting pipe 306 is fixedly arranged on the front end surface of the fire extinguishing tank 305, and the bottom end surface of the connecting pipe 306 is fixedly connected to the inner wall of the cabinet body 1;

[0029] When working, the valve inside the fire extinguishing tank 305 is started, and the fire is quickly extinguished and controlled through the output pipe 307 connected to the connecting pipe 306.

[0030] Furthermore, universal wheels 201 are fixedly provided on the bottom surface of the cabinet 1. There are four universal wheels 201 and they are evenly distributed around the bottom surface of the cabinet 1. A handle 203 is fixedly provided on the front of the right end of the cabinet door 202. An observation window 204 is fixedly provided on the inner wall of the cabinet door 202. The observation window 204 is made of glass.

[0031] During operation, the cabinet 1 is moved to a placement position by the universal wheels 201 , and the inflammable and explosive articles to be stored are placed on the placement rack 205 inside the cabinet 1 .

[0032] Furthermore, a placement rack 205 is fixedly provided on the inner wall of the cabinet 1, a transverse groove is provided on the top surface of the placement rack 205, an electrical connection assembly 206 is fixedly provided through the front of the cabinet 1, a heat dissipation window 207 is fixedly provided through the inner wall of the back end of the cabinet 1, and two connection blocks 208 are fixedly provided on the upper and lower front ends of the cabinet 1 respectively;

[0033] During operation, the inflammable and explosive articles to be stored are placed on the placement rack 205 inside the cabinet 1, the handle 203 is grasped, and the cabinet door 202 is closed along the hinge rod.

[0034] Furthermore, a clamping rod 209 is provided on the inner wall of the connecting block 208, and the surface of the clamping rod 209 is rotatably connected to the inner wall of the connecting block 208 by a bearing, and a slider 210 is provided on the inner wall of the cabinet door 202, and the side of the slider 210 is frictionally slidably connected to the inner wall of the cabinet door 202, and a ferrule 211 is fixedly provided on the front of the slider 210, and the inner size of the ferrule 211 corresponds to the size of the clamping rod 209;

[0035] During operation, the clamping rod 209 is rotated to a horizontal position inside the connecting block 208, and the slider 210 is slid to the right inside the slide groove so that the ring 211 is inserted into the surface of the clamping rod 209, and the fixing nut is tightened accordingly to fix the cabinet door 202.

[0036] Furthermore, the inner wall of the ferrule 211 and the surface of the clamping rod 209 are frictionally engaged, and a fixing nut is threadedly sleeved on the surface of the clamping rod 209. A pressure reducing pump 301 is fixedly arranged on the bottom surface of the cabinet 1. The pressure reducing pump 301 is a horizontal pump. An absorption pipe 302 is fixedly arranged on the front of the pressure reducing pump 301, and the surface of the absorption pipe 302 is fixedly connected to the inner wall of the cabinet 1.

[0037] When working, the pressure reducing pump 301 is started, so that the absorption pipe 302 absorbs the gas inside the cabinet 1 and discharges it through the output pipe 303 .

[0038] Furthermore, an output pipe 303 is fixedly provided on the back end surface of the pressure reducing pump 301, the surface of the output pipe 303 is fixedly connected to the inner wall of the cabinet 1, a pressure gauge 304 is fixedly provided on the inner wall of the cabinet 1, a pointer and a scale are provided inside the pressure gauge 304, and an output pipe 307 is fixedly provided on the bottom surface of the connecting pipe 306;

[0039] During operation, the absorption tube 302 absorbs the gas inside the cabinet 1 and discharges it through the output pipe 303, thereby reducing the air pressure inside the cabinet 1. When a fire occurs in the internal components, the valve inside the fire extinguisher tank 305 is activated, and the fire is quickly extinguished and controlled through the output pipe 307 connected to the connecting pipe 306.

[0040] Working principle: When in use, first move the cabinet 1 to the placement position through the universal wheel 201, place the inflammable and explosive items to be stored on the placement rack 205 inside the cabinet 1, grab the handle 203, close the cabinet door 202 along the hinged rod, rotate the clamping rod 209 to the horizontal position inside the connecting block 208, slide the slider 210 to the right inside the slide groove, so that the ring 211 is inserted into the surface of the clamping rod 209, and tighten the fixing nut accordingly to fix the cabinet door 202. The working conditions inside the inflammable and explosive items can be observed through the observation window 204. When the value displayed on the pressure gauge 304 is too large, start the pressure reducing pump 301, so that the absorption tube 302 absorbs the gas inside the cabinet 1 and discharges it through the output pipe 303, thereby reducing the air pressure inside the cabinet 1. When a fire problem occurs in the internal components, start the valve inside the fire extinguishing tank 305, and quickly extinguish the fire through the output pipe 307 connected by the connecting pipe 306.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positive pressure ventilation explosion-proof cabinet, comprising a cabinet body (1), characterized in that: A fixing mechanism (2) is fixedly arranged inside the cabinet (1), and a fire extinguishing mechanism (3) is fixedly arranged on the top surface of the cabinet (1); The fixing mechanism (2) comprises a fixing portion and a connecting portion, and a side surface of the fixing portion and a side surface of the connecting portion are fixedly connected; The fixing part comprises a cabinet door (202), the side surface of the cabinet door (202) is in sealing contact with the inner wall of the cabinet body (1), and the left side surface of the cabinet door (202) and the inner wall of the cabinet body (1) are hingedly connected by a hinge rod; The fire extinguishing mechanism (3) comprises a fire extinguishing part and a pressure relief part, wherein the bottom surface of the fire extinguishing part and the top surface of the pressure relief part are fixedly connected; The fire extinguishing unit comprises a fire extinguishing tank (305), the front end surface of which is fixedly provided with a connecting pipe (306), and the bottom end surface of the connecting pipe (306) is fixedly connected to the inner wall of the cabinet (1).

2. A positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: The bottom surface of the cabinet body (1) is fixedly provided with universal wheels (201), the number of the universal wheels (201) is four and they are evenly distributed around the bottom surface of the cabinet body (1), a handle (203) is fixedly provided on the front of the right end of the cabinet door (202), and an observation window (204) is fixedly provided on the inner wall of the cabinet door (202).

3. The positive pressure ventilation explosion-proof cabinet according to claim 1, characterized in that: A placement rack (205) is fixedly provided on the inner wall of the cabinet (1), an electrical connection assembly (206) is fixedly provided through the front of the cabinet (1), a heat dissipation window (207) is fixedly provided through the inner wall of the back end of the cabinet (1), and two connection blocks (208) are fixedly provided on the upper and lower front ends of the cabinet (1), respectively.

4. A positive pressure ventilation explosion-proof cabinet according to claim 3, characterized in that: The inner wall of the connection block (208) is provided with a clamping rod (209), and the surface of the clamping rod (209) and the inner wall of the connection block (208) are rotatably connected by a bearing. The inner wall of the cabinet door (202) is provided with a sliding block (210), and the side surface of the sliding block (210) is frictionally slidably connected to the inner wall of the cabinet door (202), and a ferrule (211) is fixedly provided on the front of the sliding block (210).

5. A positive pressure ventilation explosion-proof cabinet according to claim 4, characterized in that: The inner wall of the ferrule (211) and the surface of the clamping rod (209) are frictionally engaged, a fixing nut is threadedly sleeved on the surface of the clamping rod (209), a pressure reducing pump (301) is fixedly arranged on the bottom surface of the interior of the cabinet (1), an absorption pipe (302) is fixedly arranged through the front of the pressure reducing pump (301), and the surface of the absorption pipe (302) is fixedly connected to the inner wall of the cabinet (1).

6. The positive pressure ventilation explosion-proof cabinet according to claim 5, characterized in that: An output pipe (303) is fixedly provided through the back end surface of the pressure reducing pump (301), the surface of the output pipe (303) is fixedly connected to the inner wall of the cabinet (1), a pressure gauge (304) is fixedly provided through the inner wall of the cabinet (1), and an output pipeline (307) is fixedly provided through the bottom surface of the connecting pipe (306).

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