A ventilation and explosion-proof device for a fireworks production workshop

Abstract

The utility model relates to the technical field of fireworks production, in particular to a ventilation explosion-proof device for a fireworks production workshop, comprising a shell and a connecting pipe, wherein the connecting pipe is connected to the top of the shell, an exhaust fan is arranged at the other end of the connecting pipe, a mounting mechanism is arranged between the exhaust fan and the connecting pipe, a filter plate is movably connected to the inner side of the shell, a filter net is arranged on the inner side of the filter plate, an air guide plate is arranged at the bottom of the shell, a fixing mechanism is arranged between the air guide plate and the shell, and a water spray cooling mechanism is arranged on the surface of the shell; the utility model can spray water in a water tank into an atomized form to achieve cooling and explosion-proof after high temperature or open flame is generated in the workshop through atomizing nozzles on both sides, and improve the working safety of the workshop; the filter net and the exhaust fan can be assembled and disassembled through moving blocks and nuts on both sides, the structure is relatively simple, and maintenance and overhaul are convenient, and air can be filtered at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks production, in particular to a ventilation and explosion-proof device for a fireworks production workshop. Background Art

[0002] Fireworks and firecrackers have a long production history in our country. They are deeply loved by the general public for their gorgeous colors, various selections and a variety of different special sounds. At present, in the fireworks production workshop, it is generally necessary to ventilate and dissipate heat in the production workshop to reduce the temperature in the workshop and prevent the fireworks from exploding. The main working device of the current ventilation system is generally a cooling fan.

[0003] At present, ventilation and explosion-proof systems in fireworks production workshops usually use ventilation fans for ventilation and cooling. For example, Chinese patent announcement number "CN212805928U" discloses a ventilation and explosion-proof system for fireworks production workshops, which includes a heat dissipation fan. The heat dissipation fan includes fan blades and a cavity shell. The fan blades are rotatably connected in the cavity shell. A motor is fixedly connected in the cavity shell. A protective net is fixedly connected to the cavity shell. A rotating rod is coaxially fixedly connected to the motor output shaft. The fan blades are fixedly connected to the rotating rod. A scraper is installed at one end of the rotating rod away from the motor. The rotating rod drives the scraper to rotate, and the scraper abuts against a side of the protective net away from the fan blades.

[0004] The fans used in the ventilation devices currently in use can only play a ventilation role. When encountering high temperature or open flames in the workshop, they cannot quickly extinguish fires and reduce temperature. They lack explosion-proof functions for the workshop, and the structure of the device itself is complex, making it inconvenient to disassemble and maintain during use. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art, such as lack of explosion-proof function for workshops, complex structure of the device body, and inconvenience in disassembly and maintenance during use, and proposes a ventilation explosion-proof device for fireworks production workshops.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A ventilation and explosion-proof device for a fireworks production workshop is designed, comprising a shell and a connecting pipe, the connecting pipe is connected to the top of the shell, an exhaust fan is arranged at the other end of the connecting pipe, a mounting mechanism is arranged between the exhaust fan and the connecting pipe, a filter plate is movably connected to the inner side of the shell, a filter screen is arranged on the inner side of the filter plate, an air guide plate is arranged at the bottom of the shell, a fixing mechanism is arranged between the air guide plate and the shell, and a water spray cooling mechanism is arranged on the surface of the shell.

[0008] Furthermore, the mounting mechanism includes a mounting circular plate, which is fixed to the other end of the connecting pipe. A threaded column is fixed on the surface of the mounting circular plate. Both upper and lower sides of the exhaust fan are fixed with a protrusion. The threaded column passes through the protrusion and is threadedly connected with a nut.

[0009] Furthermore, the fixing mechanism includes at least two side panels and a fixed block, at least two of the side panels are fixed to the outside of the shell, the fixed blocks are fixed to both sides of the air guide plate, a guide rod is fixed between the side panels, the surface of the guide rod is slidably connected to a moving block, the surface of the guide rod is sleeved with a spring and the spring is respectively in contact with the side panel and the moving block, and the moving block is movably connected to the fixed block.

[0010] Furthermore, a pull plate is fixed on the top of the moving block, and a chamfered structure is provided on the outer side of the pull plate.

[0011] Furthermore, the water spray cooling mechanism includes two symmetrical water tanks, a mounting plate is fixed to the front of the water tank, a fixing pin is threadedly connected between the mounting plates, and the bottom of the water tank is connected to an atomizing nozzle.

[0012] Furthermore, a limiting ring is fixed on the surface of the shell, and the top of the limiting ring is in conflict with the water tank.

[0013] The utility model proposes a ventilation and explosion-proof device for a fireworks production workshop, which has the beneficial effects that: the utility model can spray out water in a water tank in atomized form to achieve cooling and explosion-proof after high temperature or open flame is generated in the workshop through the atomizing nozzles on both sides, thereby improving the working safety of the workshop; the filter screen and the exhaust fan can be assembled and disassembled through the moving blocks and nuts on both sides; the structure is relatively simple, which is convenient for maintenance and overhaul, and the air can be filtered at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model Figure 1 ;

[0016] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model Figure 2 ;

[0017] Figure 4 For this utility model Figure 1 A partial enlarged view of the middle A;

[0018] Figure 5 For this utility model Figure 2 A partial enlarged view of point B in the middle.

[0019] In the figure: 1. outer shell; 2. connecting pipe; 3. exhaust fan; 4. mounting mechanism; 41. mounting circular plate; 42. threaded column; 43. protrusion; 44. nut; 5. filter plate; 6. filter screen; 7. air guide plate; 8. fixing mechanism; 81. side plate; 82. fixing block; 83. guide rod; 84. moving block; 85. spring; 9. water spray cooling mechanism; 91. water tank; 92. mounting plate; 93. fixing pin; 94. atomizing nozzle; 10. pull plate; 11. limit ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-5 A ventilation and explosion-proof device for a fireworks production workshop comprises a shell 1 and a connecting pipe 2, wherein the connecting pipe 2 is connected to the top of the shell 1, an exhaust fan 3 is arranged at the other end of the connecting pipe 2, a mounting mechanism 4 is arranged between the exhaust fan 3 and the connecting pipe 2, a filter plate 5 is movably connected to the inner side of the shell 1, a filter screen 6 is arranged on the inner side of the filter plate 5, an air guide plate 7 is arranged at the bottom of the shell 1, a fixing mechanism 8 is arranged between the air guide plate 7 and the shell 1, and a water spray cooling mechanism 9 is arranged on the surface of the shell 1; the ventilation and explosion-proof device can spray water in a water tank 91 into atomized form to achieve cooling and explosion-proof after high temperature or open flame is generated in the workshop through the atomizing nozzles 94 on both sides, thereby improving the working safety of the workshop, the filter screen 6 and the exhaust fan 3 can be assembled and disassembled through the moving blocks 84 and nuts 44 on both sides, the structure is relatively simple, convenient for maintenance and overhaul, and the air can be filtered at the same time.

[0022] In this embodiment, the mounting mechanism 4 includes a mounting circular plate 41, which is fixed to the other end of the connecting pipe 2. A threaded column 42 is fixed on the surface of the mounting circular plate 41. A protrusion 43 is fixed on the upper and lower sides of the exhaust fan 3. The threaded column 42 passes through the protrusion 43 and is threadedly connected with a nut 44. The nut 44 cooperates with the threaded column 42 on the surface of the mounting circular plate 41 to install and fix the exhaust fan 3.

[0023] Furthermore, the fixing mechanism 8 includes at least two side panels 81 and a fixing block 82, at least two of the side panels 81 are fixed to the outer sides of the shell 1, and the fixing blocks 82 are fixed to both sides of the air guide plate 7. The fixing blocks 82 are divided into a square part at the bottom and a cylinder at the top, and a guide rod 83 is fixed between the side panels 81. The surface of the guide rod 83 is slidably connected with a moving block 84, and the bottom of the moving block 84 is provided with a circular hole that matches the fixing block 82. When the cylinder moves horizontally, it is inserted into the circular hole to realize the connection between the moving block 84 and the fixed block 82. The surface of the guide rod 83 is sleeved with a spring 85 and the spring 85 respectively conflicts with the side panels 81 and the moving block 84. The moving block 84 is movably connected to the fixed block 82. The moving block 84 cooperates with the fixed block 82 to install and fix the air guide plate 7, and the inner filter 6 can be removed for cleaning.

[0024] Furthermore, a pull plate 10 is fixed on the top of the moving block 84 , and a chamfered structure is provided on the outer side of the pull plate 10 , so that the pull plate 10 can fit the fingers and is easy to move.

[0025] In addition, the water spray cooling mechanism 9 includes two symmetrical water tanks 91. The top of the water tank 91 is provided with a hole for adding water and a seal. A mounting plate 92 is fixed to the front of the water tank 91. A fixing pin 93 is threadedly connected between the mounting plates 92. The bottom of the water tank 91 is connected to an atomizing nozzle 94. The atomizing nozzle 94 is sealed with a thermosensitive glass tube. It will burst when encountering high temperature to achieve spraying and cooling. The atomizing nozzles 94 on both sides can be used to atomize and spray the water in the water tank 91 when high temperature or open flame is generated in the workshop to achieve cooling and explosion prevention.

[0026] It should be noted that a limiting ring 11 is fixed on the surface of the housing 1 , and the top of the limiting ring 11 is in conflict with the water tank 91 . The limiting ring 11 can be pressed against the water tank 91 to be fixed.

[0027] Working method: When in use, the shell 1 is vertically facing the workshop, and the exhaust fan 3 is installed facing the exhaust duct. When discharging and cooling, only the exhaust fan 3 needs to be turned on. The exhaust fan 3 can suck in external air and transport it to the workshop through the wind guide plate 7. The filter 6 can filter impurities in the air. The staff can push the moving block 84 to both sides, and the moving block 84 will squeeze the spring 85, and then it will be separated from the fixed block 82. After loosening the four corners, the wind guide plate 7 can be removed, and then the staff can remove the filter 6. The exhaust fan 3 can be disassembled by the nut 44, and the water tank 91 separated on both sides can be separated by the fixing pin 93 to achieve disassembly.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ventilation explosion-proof device for a fireworks production workshop, comprising a housing (1) and a connecting pipe (2), characterized in that: The connecting pipe (2) is connected to the top of the outer shell (1); an exhaust fan (3) is provided at the other end of the connecting pipe (2); a mounting mechanism (4) is provided between the exhaust fan (3) and the connecting pipe (2); a filter plate (5) is movably connected to the inner side of the outer shell (1); a filter screen (6) is provided on the inner side of the filter plate (5); an air guide plate (7) is provided at the bottom of the outer shell (1); a fixing mechanism (8) is provided between the air guide plate (7) and the outer shell (1); and a water spray cooling mechanism (9) is provided on the surface of the outer shell (1).

2. A fireworks production workshop ventilation and explosion-proof device according to claim 1, characterized in that: The mounting mechanism (4) comprises a mounting circular plate (41), the mounting circular plate (41) being fixed to the other end of the connecting pipe (2), a threaded column (42) being fixed to the surface of the mounting circular plate (41), a protrusion (43) being fixed to both the upper and lower sides of the exhaust fan (3), the threaded column (42) penetrating the protrusion (43) and being threadedly connected to a nut (44).

3. A fireworks production workshop ventilation and explosion-proof device according to claim 1, characterized in that: The fixing mechanism (8) comprises at least two side plates (81) and a fixing block (82), at least two of the side plates (81) are fixed to the outside of the housing (1), the fixing block (82) is fixed to both sides of the air guide plate (7), a guide rod (83) is fixed between the side plates (81), a moving block (84) is slidably connected to the surface of the guide rod (83), a spring (85) is sleeved on the surface of the guide rod (83), and the spring (85) is respectively in contact with the side plate (81) and the moving block (84), and the moving block (84) is movably connected to the fixing block (82).

4. A fireworks production workshop ventilation and explosion-proof device according to claim 3, characterized in that: A pull plate (10) is fixed on the top of the moving block (84), and a chamfered structure is provided on the outer side of the pull plate (10).

5. A fireworks production workshop ventilation and explosion-proof device according to claim 1, characterized in that: The water spray cooling mechanism (9) comprises two symmetrical water tanks (91), a mounting plate (92) is fixed on the front of the water tank (91), a fixing pin (93) is threadedly connected between the mounting plates (92), and the bottom of the water tank (91) is connected to an atomizing nozzle (94).

6. A fireworks production workshop ventilation and explosion-proof device according to claim 5, characterized in that: A limiting ring (11) is fixed on the surface of the housing (1), and the top of the limiting ring (11) is in contact with the water tank (91).

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