A suspended dry powder fire extinguisher pressure relief device

Abstract

The utility model provides a kind of suspension type dry powder fire extinguisher pressure relief device, including pressure relief chamber, powder collecting chamber, switch door, connecting pipe, pump, check valve, fixing frame, bearing surface, fastening component, through insertion hole, suspension type dry powder fire extinguisher, buffer pad, support wheel, guide rod, limit sleeve, thickening rod, threaded rod and glass ball, switch door is equipped on the front of pressure relief chamber, and pump is equipped on the left side surface of pressure relief chamber, pump is installed together with check valve by connecting pipe, and check valve is arranged in powder collecting chamber side edge, bearing surface is equipped in fixing frame left and right symmetrical, and support wheel is also equipped on bearing surface, the utility model structure is reasonable, easy to operate, not only can carry out pressure relief treatment to suspension type dry powder fire extinguisher, extract dry powder gas in fire extinguisher, but also can strengthen fastening protection to fire extinguisher, resist the recoil force when suspension type dry powder fire extinguisher injects fire extinguishing agent, prevent fire extinguisher from falling off.

Description

Technical Field

[0001] This utility model is a depressurization device for suspended dry powder fire extinguishers, belonging to the field of depressurization technology for suspended dry powder fire extinguishers. Background Technology

[0002] With the increasing awareness of fire safety in society, fire extinguishers are widely used, among which suspended dry powder fire extinguishers are the most widely used. As the years go by, the dry powder extinguishing agent in existing suspended dry powder fire extinguishers becomes ineffective, and many need to be scrapped. However, because suspended fire extinguishers have high pressure, forcibly breaking them may cause pressure injuries and create unpredictable dangers.

[0003] To address this issue, Chinese Patent Publication No. CN218961638U discloses a depressurization device for suspended dry powder fire extinguishers. This device places the fire extinguisher on a fixed mechanism and uses a trigger to break the glass bulb of the suspended dry powder fire extinguisher, causing the extinguishing agent inside to be ejected to depressurize and extracting dry powder from the air. However, because the suspended dry powder fire extinguisher generates a backward thrust when spraying the extinguishing agent, although the clamps of this depressurization device can hold the fire extinguisher tightly, they cannot withstand the thrust during the spray, making it easy for the fire extinguisher to fall off. Therefore, there is an urgent need for a depressurization device for suspended dry powder fire extinguishers to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a depressurization device for suspended dry powder fire extinguishers, thereby solving the problems mentioned in the background art. This utility model has a reasonable structure and is easy to operate. It can not only depressurize suspended dry powder fire extinguishers and extract dry powder gas from the fire extinguishers, but also strengthen the fastening and protection of the fire extinguishers, resist the recoil force when the suspended dry powder fire extinguishers spray extinguishing agents, and prevent the fire extinguishers from falling off.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a suspended dry powder fire extinguisher depressurization device, comprising a depressurization chamber, a powder collection chamber, a switch door, a connecting pipe, a pump, a one-way valve, a fixing frame, a bearing surface, fastening components, an insertion hole, a suspended dry powder fire extinguisher, a buffer pad, support wheels, a guide rod, a limiting sleeve, a thickened rod, a threaded rod, and a glass bulb. The depressurization chamber has a switch door on its front side, and a pump is located on the left side of the depressurization chamber. The pump is connected to the one-way valve via a connecting pipe, and the one-way valve is located on the side of the powder collection chamber. The fixing frame has symmetrical bearing surfaces, and support wheels are also provided on the bearing surfaces. The buffer pad is mounted on the back of the fixing frame, and the left and right sides of the fixing frame... The device has through holes on both sides. The suspended dry powder fire extinguisher is installed on the bearing surface of the fixed frame through fastening components. The guide rod passes through the through holes on both sides of the fixed frame and is installed and fixed inside the pressure relief chamber. The front end of the guide rod is provided with a threaded rod, and a thickened rod is added to the tail end of the threaded rod. The rear end of the guide rod is provided with a limiting sleeve. The inner wall of the back of the pressure relief chamber is provided with a striking pin for breaking glass balls. The fastening components include a fastening frame, a baffle, a side baffle, an arc groove, a mounting plate, and a docking groove. The mounting plate is provided on the bearing surfaces on both sides and has a docking groove. The fastening frame is equipped with a baffle and has an arc groove. The side baffle is assembled on the outer sides of both sides of the fastening frame.

[0006] Furthermore, the size and thickness of the fastening bracket are adapted to the size of the mating groove on the mounting plate, and the length of the side rail is greater than the thickness of the mating groove.

[0007] Furthermore, the arc groove in the baffle plate engages with the position of the glass bulb at the front end of the suspended dry powder fire extinguisher.

[0008] Furthermore, the insertion holes on the left and right sides of the fixing frame are divided into coarse insertion holes and fine insertion holes, with the coarse insertion holes located on the left and right sides of one side of the buffer pad on the fixing frame, and the fine insertion holes located on the left and right sides of the other side of the fixing frame.

[0009] Furthermore, the position of the limiting sleeve at the rear end of the guide rod is such that the entire fixing frame can enter the opening and closing door.

[0010] Furthermore, the overall size of the guide rod is adapted to the size of the fine insertion hole in the through hole, the size of the thickened rod meets the size of the coarse insertion hole, and the length of the coarse insertion hole occupies three-quarters of the through hole.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a depressurization device for a suspended dry powder fire extinguisher. Because it incorporates a buffer pad, limiting sleeve, thickened rod, fastening frame, baffle plate, side baffle, arc groove, mounting plate, and docking groove, the fixing frame 7 is pulled out from the opening / closing door 3 of the depressurization chamber using a guide rod. The thickened rod then engages the narrow insertion hole, thus limiting the position of the fixing frame 7. The fastening frame, which can be installed into the bearing surface, helps to lock and restrict the position of the glass bulb at the front of the suspended dry powder fire extinguisher. This helps prevent the suspended dry powder fire extinguisher from swaying back and forth due to the recoil force when the glass bulb breaks and dry powder is sprayed, thus improving the protection and securing of the suspended dry powder fire extinguisher. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of a suspended dry powder fire extinguisher depressurization device according to the present invention. Figure 2 This is a schematic diagram of the fixing frame of a suspended dry powder fire extinguisher depressurization device according to the present invention. Figure 3 This is a schematic diagram of the disassembled structure of the fixing frame of the suspended dry powder fire extinguisher depressurization device according to the present invention; Figure 4 This is a schematic diagram of the fastening component structure of a suspended dry powder fire extinguisher depressurization device according to the present invention; In the diagram: 1-Depressurization chamber, 2-Powder collection chamber, 3-Opening and closing door, 4-Connecting pipe, 5-Pump, 6-One-way valve, 7-Fixing frame, 8-Bearing surface, 9-Fastening component, 10-Intercepting hole, 11-Suspended dry powder fire extinguisher, 12-Buffer pad, 13-Support wheel, 14-Guide rod, 15-Limit sleeve, 16-Thickened rod, 17-Threaded rod, 18-Glass ball, 91-Fastening frame, 92-Barrier, 93-Side barrier, 94-Arc groove, 95-Mounting plate, 96-Connecting groove. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] Please see Figures 1-4This utility model provides a technical solution: a suspended dry powder fire extinguisher depressurization device, including a depressurization chamber 1, a powder collection chamber 2, a switch door 3, a connecting pipe 4, a pump 5, a one-way valve 6, a fixing frame 7, a bearing surface 8, a fastening component 9, an insertion hole 10, a suspended dry powder fire extinguisher 11, a buffer pad 12, a support wheel 13, a guide rod 14, a limiting sleeve 15, a thickened rod 16, a threaded rod 17, and a glass bulb 18. The switch door 3 is provided on the front of the depressurization chamber 1, and the pump 5 is provided on the left side of the depressurization chamber 1. The pump 5 is installed together with the one-way valve 6 through the connecting pipe 4, and the one-way valve 6 is located on the side of the powder collection chamber 2. The fixing frame 7 has symmetrical bearing surfaces 8, and the support wheel 13 is also provided on the bearing surface 8. The buffer pad 12 is assembled on the back of the fixing frame 7, and the fixing frame 7 has insertion holes 10 on both the left and right sides. The suspended dry powder fire extinguisher 11 is installed on the bearing surface 8 of the fixed frame 7 by fastening component 9. The guide rod 14 passes through the insertion holes 10 on the left and right sides of the fixed frame 7 and is installed and fixed inside the pressure chamber 1. The front end of the guide rod 14 is provided with a threaded rod 17, and a thickening rod 16 is added to the tail end of the threaded rod 17. The rear end of the guide rod 14 is provided with a limiting sleeve 15. The inner wall of the back of the pressure chamber 1 is provided with a striking pin for breaking the glass ball 18. The fastening component 9 includes a fastening frame 91, a baffle plate 92, a side baffle 93, an arc groove 94, a mounting plate 95, and a docking groove 96. The mounting plate 95 is provided on the bearing surface 8 on both the left and right sides, and the mounting plate 95 is provided with a docking groove 96. The baffle plate 92 is assembled in the fastening frame 91, and the baffle plate 92 is provided with an arc groove 94. The side baffle 93 is assembled on the outer side of both the left and right sides of the fastening frame 91.

[0015] As the first embodiment of this utility model: the insertion holes 10 on the left and right sides of the fixing frame 7 are divided into coarse insertion holes and fine insertion holes. The coarse insertion holes are located on the left and right sides of one side of the buffer pad 12 on the fixing frame 7, and the fine insertion holes are located on the left and right sides of the other side of the fixing frame 7. The overall size of the guide rod 14 is adapted to the size of the fine insertion hole in the insertion hole 10. The size of the thickened rod 16 meets the size of the coarse insertion hole, and the length of the coarse insertion hole occupies three-quarters of the length of the insertion hole 10. This design helps to pull the fixing frame 7 out of the opening and closing door 3 of the depressurization chamber 1 with the help of the guide rod 14, and to lock the fine insertion hole with the thickened rod 16 to achieve the limitation of the fixing frame 7, which facilitates the disassembly and assembly of the suspended dry powder fire extinguisher 11. The position of the limiting sleeve 15 at the rear end of the guide rod 14 is just enough to allow the entire fixing frame 7 to enter the opening and closing door 3. This design This design facilitates the insertion of the mounting bracket 7 into the switch door 3. A fastening nut is installed at the threaded rod 17, engaging with the limiting sleeve 15 to secure the mounting bracket 7. The arc groove 94 in the baffle 92 engages with the position of the glass bulb 18 at the front of the suspended dry powder fire extinguisher 11. The dimensions and thickness of the fastening bracket 91 are compatible with the dimensions of the mating groove 96 on the mounting plate 95, and the length of the side baffle 93 is greater than the thickness of the mating groove 96. This design, by setting a fastening bracket 91 that can be installed into the bearing surface 8, helps to lock and restrict the position of the glass bulb 18 at the front of the suspended dry powder fire extinguisher 11, preventing the suspended dry powder fire extinguisher 11 from swaying back and forth due to the recoil force when spraying dry powder after breaking the glass bulb 18, thus improving the protection and securing of the suspended dry powder fire extinguisher 11.

[0016] As a second embodiment of this utility model: After opening the switch door 3 of the depressurization chamber 1, the fixing frame 7 is pulled out through the guide rods 14 on both sides. Since the insertion hole 10 at the front end of the fixing frame 7 is a narrow insertion hole and the insertion hole 10 at the rear end is a coarse insertion hole, during the pulling of the guide rods 14, when the thickened rod 16 at the tail end of the guide rods 14 reaches the junction of the coarse and narrow insertion holes, it is blocked and restricted, and the entire fixing frame 7 is pulled out of the switch door 3. At this time, the suspended dry powder fire extinguisher 11 is placed. On the bearing surface 8 of the fixing frame 7, by fitting the side rails 93 on both sides of the fastening frame 91 with the mating grooves 96 on the mounting plate 95, the bottom of the fastening frame 91 is engaged in the mating grooves 96. At this time, the baffle 92 on the fastening frame 91 is engaged with the glass bulb 18 at the front end of the suspended dry powder fire extinguisher 11 by the arc groove 94, while the tail of the suspended dry powder fire extinguisher 11 is engaged with the buffer pad 12. Then the fixing frame 7 is pushed back into the depressurization chamber 1. When the fixing frame 7 passes through When the guide rod 14 reaches the front limiting sleeve 15, the threaded rod 17 at the tail of the guide rod 14 just comes out of the coarse insertion hole. Then, the threaded rod 17 is limited and tightened by the fastening nut. At this time, the fixing frame 7 is in the depressurization chamber 1, and is restricted and locked at both ends by the limiting sleeve 15 on the guide rod 14 and the fastening nut at the tail. After the switch door 3 is closed, the contact pin on the back inner wall of the depressurization chamber 1 is activated by the switch module on the depressurization chamber 1. The contact pin will break the glass ball 18, allowing the suspended dry powder to be released. Fire extinguisher 11 sprays dry powder gas inside to achieve depressurization. The buffer pad 12 and fastening component 9 on the fixing frame 7 will buffer and resist the recoil impact force when the suspended dry powder fire extinguisher 11 sprays dry powder, preventing the suspended dry powder fire extinguisher 11 from falling off. The pump 5 will draw the gas in the depressurization chamber 1 to the powder collection chamber 2. When there is no dry powder in the air in the depressurization chamber 1, open the switch door 3 of the depressurization chamber 1, and pull the fixing frame 7 in the same way to take out the suspended dry powder fire extinguisher 11.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A depressurization device for a suspended dry powder fire extinguisher, comprising a depressurization chamber (1), a powder collection chamber (2), a switch door (3), a connecting pipe (4), a pump (5), a one-way valve (6), a fixing frame (7), a bearing surface (8), fastening components (9), an insertion hole (10), a suspended dry powder fire extinguisher (11), a buffer pad (12), a support wheel (13), a guide rod (14), a limiting sleeve (15), a thickened rod (16), a threaded rod (17), and a glass bulb (18), characterized in that, The depressurization chamber (1) has a switch door (3) on its front side, and a pump (5) is provided on the left side of the depressurization chamber (1). The pump (5) is connected to a one-way valve (6) via a connecting pipe (4), and the one-way valve (6) is located on the side of the powder collection chamber (2). The fixing frame (7) has symmetrical bearing surfaces (8) on its left and right sides, and a support wheel (13) is also provided on the bearing surface (8). The buffer pad (12) is assembled on the back of the fixing frame (7), and the fixing frame (7) has through holes (10) on both the left and right sides. The suspended dry powder fire extinguisher (11) is installed on the bearing surface (8) of the fixed frame (7) by fastening component (9). The guide rod (14) passes through the insertion holes (10) on the left and right sides of the fixed frame (7) and is installed and fixed inside the pressure relief chamber (1). The front end of the guide rod (14) is provided with a threaded rod (17), and a thickened rod (16) is added to the tail end of the threaded rod (17). The rear end of the guide rod (14) is provided with a limiting sleeve (15). The inner wall of the back of the pressure relief chamber (1) is provided with a striking pin for breaking the glass ball (18). The fastening component (9) includes a fastening frame (91), a guardrail (92), a side guardrail (93), an arc groove (94), a mounting plate (95), and a docking groove (96). The mounting plate (95) is provided on the bearing surfaces (8) on both the left and right sides, and a docking groove (96) is provided on the mounting plate (95). The guardrail (92) is assembled in the fastening frame (91), and an arc groove (94) is provided on the guardrail (92). The side guardrail (93) is assembled on the outer sides of both the left and right sides of the fastening frame (91).

2. The depressurization device for a suspended dry powder fire extinguisher according to claim 1, characterized in that: The overall size of the guide rod (14) is adapted to the size of the fine insertion hole in the insertion hole (10), and the length of the coarse insertion hole occupies three-quarters of the length of the insertion hole (10).

3. The depressurization device for a suspended dry powder fire extinguisher according to claim 1, characterized in that: The position of the limiting sleeve (15) at the rear end of the guide rod (14) is just enough to allow the entire fixed frame (7) to enter the opening and closing door (3).

4. The depressurization device for a suspended dry powder fire extinguisher according to claim 1, characterized in that: The insertion holes (10) on the left and right sides of the fixed frame (7) are divided into coarse insertion holes and fine insertion holes. The coarse insertion holes are located on the left and right sides of the buffer pad (12) on the fixed frame (7), and the fine insertion holes are located on the left and right sides of the other side of the fixed frame (7).

5. The depressurization device for a suspended dry powder fire extinguisher according to claim 1, characterized in that: The arc groove (94) in the baffle (92) engages with the position of the glass ball (18) at the front end of the suspended dry powder fire extinguisher (11).

6. The depressurization device for a suspended dry powder fire extinguisher according to claim 1, characterized in that: The size and thickness of the fastening bracket (91) are adapted to the size of the mating groove (96) on the mounting plate (95), and the length of the side rail (93) is greater than the thickness of the mating groove (96).

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