Dry powder extinguisher

Abstract

The utility model belongs to the technical field of fire extinguishers, and particularly relates to a dry powder fire extinguisher, which is characterized by comprising a bottle body and an extinguisher head, the extinguisher head comprises a discharge pipeline, the discharge pipeline is arranged on the bottle body, and a discharge port is arranged on the discharge pipeline; one end of the siphon is inserted into the bottle body, and the other end is in threaded connection with the bottom of the discharge pipeline; the blocking disc is arranged between the discharging pipeline and the siphon; the control mechanism is arranged above the discharging pipeline, the control mechanism is used for controlling opening and closing of the fire extinguisher, the control mechanism comprises a damage assembly and a switch assembly, the damage assembly is arranged above the blocking disc, and the switch assembly is arranged above the discharging opening; a blocking piece is arranged in the blocking disc, a pre-breaking groove is formed in the blocking piece, and the breaking assembly is used for breaking the blocking piece. The fire extinguisher has the advantages that double-layer air leakage prevention protection can be carried out on the fire extinguisher, the problem that the fire extinguisher is damaged due to air leakage caused by various reasons in the transportation and storage process is solved, and the valid period of the fire extinguisher is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire extinguishers, and particularly relates to a dry powder fire extinguisher. Background Art

[0002] A dry powder fire extinguisher is a type of fire extinguisher. The inside of the dry powder fire extinguisher bottle is filled with dry powder fire extinguishing agent. According to the types of dry powder fire extinguishing agents filled, it can be divided into ordinary dry powder fire extinguishers and superfine dry powder fire extinguishers. Dry powder fire extinguishers are relatively common in daily life. Dry powder fire extinguishers are divided into three types according to the moving method: portable, backpack, and trolley-mounted. Among them, the most common is the portable fire extinguisher, and spare portable dry powder fire extinguishers are placed in most buildings. Usually, inert gases such as carbon dioxide or nitrogen are filled inside the dry powder fire extinguisher as the power source. When the fire extinguisher is opened, these gases will be released and generate pressure, causing the fire extinguishing agent to be quickly ejected from the fire extinguisher bottle.

[0003] However, due to possible physical damage, temperature changes, improper operation by transportation personnel, etc. during transportation and storage, some fire extinguishers may have air leakage at the nozzle during transportation, resulting in a shorter effective life or invalidation of the fire extinguisher. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dry powder fire extinguisher for the above-mentioned existing technical problems, which can provide double-layer air leakage protection for the fire extinguisher, prevent the problem of air leakage and damage of the fire extinguisher caused by various reasons during transportation and storage, and extend the effective life of the fire extinguisher.

[0005] The purpose of the utility model is realized as follows: A dry powder fire extinguisher includes a bottle body and a nozzle arranged on the bottle body. The nozzle includes:

[0006] A discharge pipeline, which is arranged on the bottle body, and a discharge port is arranged on the discharge pipeline;

[0007] A siphon tube, one end of which is inserted into the inside of the bottle body, and the other end is threadedly connected to the bottom of the discharge pipeline;

[0008] A blocking disk, which is arranged between the discharge pipeline and the siphon tube;

[0009] A control mechanism, which is arranged above the discharge pipeline. The control mechanism is used to control the opening and closing of the fire extinguisher. The control mechanism includes a destruction component and a switch component. The destruction component is arranged above the blocking disk, and the switch component is arranged above the discharge port;

[0010] Wherein, a blocking piece is arranged inside the blocking disk, and a pre-fracture groove is arranged on the blocking piece. The destruction component is used to destroy the blocking piece.

[0011] The present utility model is further configured as follows: The destruction assembly includes:

[0012] A control block, disposed above the blocking disk, and a cavity is provided in the control block;

[0013] A pushing block, disposed in the cavity, a tip is provided at the bottom of the pushing block, the tip is inserted into the discharge pipe, and the tip is disposed above the pre-fracture groove;

[0014] A pressing block, disposed above the control block, one end of the pressing block is inserted into the cavity and abuts against the top of the pushing block.

[0015] The present utility model is further configured as follows: An annular protrusion is provided on the pushing block, the outer periphery of the annular protrusion abuts against the inner wall of the cavity, and an elastic member is provided in the cavity, one end of the elastic member abuts against the bottom of the annular protrusion, and the other end abuts against the inner wall of the cavity.

[0016] The present utility model is further configured as follows: The pressing block includes:

[0017] A limiting protrusion, disposed at one end of the pressing block inserted into the cavity, the bottom of the limiting protrusion abuts against the annular protrusion,

[0018] A pressing protrusion, disposed at one end of the pressing block away from the cavity.

[0019] The present utility model is further configured as follows: The switch assembly includes:

[0020] A connecting pipe, disposed above the discharge port, the connecting pipe is threadedly connected to the discharge pipe;

[0021] A handle, disposed above the connecting pipe;

[0022] A pressing handle, disposed above the handle, the pressing handle is hinged to the handle;

[0023] An opening valve, disposed in the connecting pipe, the top of the opening valve passes through the handle and abuts against the bottom of the pressing handle;

[0024] A nozzle, disposed on the connecting pipe, the nozzle is communicated with the connecting pipe.

[0025] The present utility model is further configured as follows: The control mechanism further includes:

[0026] An insurance assembly, disposed on the discharge pipe, the insurance assembly includes an insurance ring and an insurance pin, the insurance ring is sleeved on the pressing block, one end of the insurance ring abuts against the pressing protrusion, the other end abuts against the top of the control block, and the insurance pin is inserted between the handle and the pressing handle.

[0027] The present utility model is further configured as follows: a material guiding protrusion is provided at the bottom of the bottle body, a bending portion is provided at the bottom of the siphon tube, and the bending portion is bent towards the inner wall of the bottle body.

[0028] By adopting the above technical solution, the present utility model has at least the following beneficial effects:

[0029] 1. By providing a blocking disk in the siphon tube and the discharge channel, and blocking pieces provided in the blocking disk, the gas in the bottle body can be blocked from entering the discharge pipeline through the siphon tube, forming a first layer of protection. The switch assembly is arranged at the discharge port, forming a second layer of protection. Through the two layers of protection, it can effectively prevent the fire extinguisher from leaking and being damaged due to various reasons during transportation and storage. At the same time, when the fire extinguisher needs to be used, the destruction assembly can be opened to destroy the blocking piece, and then the switch assembly can be used to spray the fire extinguishing agent for fire extinguishing.

[0030] 2. Through the cooperation of the control block, the pushing block, and the pressing block, when the fire extinguisher needs to be used, the user can press the top of the pressing block so that the tip at the bottom of the pushing block pierces and destroys the blocking piece. The pre-fracture groove provided on the blocking piece can make the blocking piece more easily damaged by the tip. After the blocking piece is damaged and loses its protective effect, the switch assembly can be controlled to open the fire extinguisher for fire extinguishing.

[0031] 3. By providing an insurance assembly to limit the destruction assembly and the switch assembly, it can prevent the user from accidentally touching the destruction assembly and the switch assembly during transportation and storage, resulting in air leakage at the nozzle and affecting the service life of the fire extinguisher.

[0032] 4. A bending portion is provided at the bottom of the siphon tube, and a material guiding protrusion is provided at the bottom of the bottle body. When the fire extinguishing agent in the bottle body is about to be used up, the remaining fire extinguishing agent will slide to the edge of the bottom of the bottle body under the action of gravity. The siphon tube is bent towards the inner wall of the bottle body, and the remaining fire extinguishing agent in the bottle body can be ejected, reducing the remainder of the fire extinguisher in the bottle body, improving the utilization rate of the fire extinguishing agent, and reducing the waste of the fire extinguishing agent. Description of the Drawings

[0033] Figure 1 is a schematic structural view of the dry powder fire extinguisher of the present utility model;

[0034] Figure 2 is an enlarged view of part A of the present utility model;

[0035] Figure 3 is a sectional view of the dry powder fire extinguisher of the present utility model;

[0036] Figure 4 is an enlarged view of part B of the present utility model;

[0037] Figure 5 is a schematic view of the blocking disk of the present utility model;

[0038] The reference numerals in the figure are: 1 - bottle body, 2 - head, 11 - material guiding protrusion, 21 - discharge pipe, 22 - siphon tube, 23 - blocking disc, 211 - discharge port, 221 - bending part, 231 - blocking piece, 232 - pre - fracture groove, 251 - control block, 252 - pushing block, 253 - pressing block, 254 - cavity, 255 - annular protrusion, 256 - elastic member, 257 - limiting protrusion, 258 - pressing protrusion, 259 - tip, 261 - connecting pipe, 262 - handle, 263 - pressing handle, 264 - opening valve, 265 - nozzle, 271 - safety ring, 272 - safety pin. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms used here are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further described in subsequent drawings.

[0041] The following further describes the present utility model with specific embodiments in conjunction with the accompanying drawings. See Figures 1-5 :

[0042] Embodiment 1.

[0043] This embodiment provides a dry powder fire extinguisher, including a bottle body 1 and a head 2 arranged on the bottle body 1. The head 2 includes:

[0044] A discharge pipe 21, which is arranged on the bottle body 1 and is provided with a discharge port 211 on the discharge pipe 21;

[0045] A siphon tube 22, one end of which is inserted into the interior of the bottle body 1 and the other end is threadedly connected to the bottom of the discharge pipe 21;

[0046] A blocking disc 23 is arranged between the discharge pipeline 21 and the siphon tube 22;

[0047] A control mechanism is arranged above the discharge pipeline 21. The control mechanism is used to control the opening and closing of the fire extinguisher. The control mechanism includes a destruction component and a switch component. The destruction component is arranged above the blocking disc 23, and the switch component is arranged above the discharge port 211;

[0048] Wherein, a blocking piece 231 is arranged in the blocking disc 23, and a pre-fracture groove 232 is arranged on the blocking piece 231. The destruction component is used to destroy the blocking piece 231.

[0049] As Figures 1-5 shown, the top of the bottle body 1 is provided with a bottle mouth. An internal thread is arranged in the bottle mouth. The end of the discharge pipeline 21 facing the bottle mouth is provided with an external thread. The discharge pipeline 21 is threadedly connected to the bottle body 1. A clamping groove is arranged in the discharge pipeline 21. The blocking disc 23 is clamped in the clamping groove. A blocking piece 231 is arranged in the blocking disc 23. The blocking piece 231 can block the bottle mouth and prevent the gas and fire extinguishing agent in the bottle body 1 from entering the discharge pipeline 21, thereby forming the first layer of air leakage protection for the fire extinguisher.

[0050] The switch component is arranged above the discharge port 211 and is used to control the opening and closing of the discharge port 211. At the same time, it can form the second layer of air leakage protection for the fire extinguisher when the fire extinguisher is not in use, protecting the fire extinguisher from air leakage at the nozzle 2 due to environmental or operator's improper operation during transportation, effectively extending the effective life of the fire extinguisher and reducing the maintenance cost.

[0051] The destruction component is arranged above the blocking disc 23. A pre-fracture groove 232 is arranged on the blocking piece 231. The blocking piece 231 is circular. The pre-fracture groove 232 is arranged at the center of the blocking piece 231. The pre-fracture groove 232 can make the blocking piece 231 easily be destroyed by the destruction component while ensuring that the blocking piece 231 is not damaged by the pressure in the bottle body 1. When the fire extinguisher needs to be used, the destruction component can be driven to destroy the blocking piece 231 through the pre-fracture groove 232, so that the bottle body 1 is communicated with the discharge pipeline 21, enabling the fire extinguishing agent in the bottle to enter the discharge pipeline 21. Then, the switch component is opened to discharge the fire extinguishing agent from the discharge port 211 for fire extinguishing.

[0052] The bottle body 1 is filled with a fire extinguishing agent. The siphon tube 22 is inserted into the bottle body 1. The bottom of the siphon tube 22 is in contact with the fire extinguishing agent. The fire extinguishing agent can enter the discharge pipeline 21 through the siphon tube 22.

[0053] The blocking piece 231 and the blocking disk 23 are integrally designed. The blocking piece 231 can be made of materials such as stainless steel. Preferably, the blocking piece 231 of the present utility model is made of aluminum alloy. Aluminum alloy has a certain strength, and has good ductility and corrosion resistance, and a long service life. When the blocking piece 231 is damaged by the damaging component, it can prevent the fragments of the blocking piece 231 from being discharged from the discharge pipeline 21, affecting the safety of the user and the fire extinguishing effect.

[0054] Embodiment 2:

[0055] This embodiment provides a dry powder fire extinguisher. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0056] The damaging component includes:

[0057] A control block 251, arranged above the blocking disk 23, and a cavity 254 is provided in the control block 251;

[0058] A pushing block 252, arranged in the cavity 254. A tip 259 is provided at the bottom of the pushing block 252. The tip 259 is inserted into the discharge pipeline 21, and the tip 259 is arranged above the pre-fracture groove 232;

[0059] A pressing block 253, arranged above the control block 251. One end of the pressing block 253 is inserted into the cavity 254 and abuts against the top of the pushing block 252.

[0060] As Figures 1-5 shown, an external thread is provided at the bottom of the control block 251, a fixing part is provided on the discharge pipeline 21, and an internal thread is provided on the fixing part. The control block 251 is threadedly connected to the discharge pipeline 21. The control block 251 is arranged directly above the blocking disk 23. The pushing block 252 is T-shaped. A tip 259 is provided at the bottom of the pushing block 252. The tip 259 passes through the inner wall of the control block 251 and enters the discharge pipeline 21. The tip 259 is arranged directly above the pre-fracture groove 232. The tip 259 is used to damage the blocking piece 231.

[0061] The pushing block 252 is made of stainless steel. Stainless steel has high strength, is corrosion-resistant, and has a long service life, which can keep the pushing block 252 in a working state for a long time.

[0062] One end of the pressing block 253 is inserted into the cavity 254 and abuts against the top of the pushing block 252, and the other end is arranged above the control block 251. When the user needs to use the fire extinguisher, the user can press down the top of the pressing block 253, so that the tip 259 on the pushing block 252 damages the blocking piece 231 downward, so that the fire extinguishing agent in the bottle body 1 enters the discharge pipeline 21, and the operation is convenient.

[0063] The pushing block 252 is provided with an annular protrusion 255. The outer periphery of the annular protrusion 255 abuts against the inner wall of the cavity 254. An elastic member 256 is provided in the cavity 254. One end of the elastic member 256 abuts against the bottom of the annular protrusion 255, and the other end abuts against the inner wall of the cavity 254.

[0064] As Figures 3-4 described above, the elastic member 256 is arranged in the cavity 254 and below the annular protrusion 255. The elastic member 256 can provide elastic force for the pushing block 252 and limit the pushing block 252, so that the tip 259 at the bottom of the pushing block 252 does not contact the blocking piece 231 when the fire extinguisher is not in use, preventing the blocking piece 231 from being damaged by the tip 259 when the fire extinguisher is not in use and affecting the effective period of the fire extinguisher.

[0065] The pressing block 253 includes:

[0066] a limiting protrusion 257, arranged at one end of the pressing block 253 inserted into the cavity 254, and the bottom of the limiting protrusion 257 abuts against the annular protrusion 255,

[0067] a pressing protrusion 258, arranged at the end of the pressing block 253 away from the cavity 254.

[0068] As Figures 1-4 shown, the limiting protrusion 257 can limit the pressing block 253 to prevent the limiting block from coming out of the cavity 254 and affecting the use of the fire extinguisher. At the same time, the cooperation between the limiting protrusion 257 and the annular protrusion 255 can increase the force-bearing area of the pushing block 252 and improve the pressing stability of the pressing block 253, thereby improving the stability of the destruction component.

[0069] The pressing protrusion 258 is arranged at the end of the pressing block 253 away from the cavity 254. The pressing protrusion 258 can increase the pressing area of the user on the pressing block 253 and facilitate the user to drive the destruction component.

[0070] Embodiment 3:

[0071] This embodiment provides a dry powder fire extinguisher, which, in addition to including the technical solutions of the above embodiments, further has the following technical features.

[0072] The switch assembly includes:

[0073] a connecting pipe 261, arranged above the discharge port 211, and the connecting pipe 261 is threadedly connected to the discharge pipeline 21;

[0074] a handle 262, arranged above the connecting pipe 261;

[0075] a pressing handle 263, arranged above the handle 262, and the pressing handle 263 is hinged to the handle 262;

[0076] An opening valve 264 is disposed within the connecting pipe 261. The top of the opening valve 264 passes through the handle 262 and abuts against the bottom of the pressing handle 263.

[0077] A nozzle 265 is disposed on the connecting pipe 261. The nozzle 265 is in communication with the connecting pipe 261.

[0078] As Figures 1-4 shown, the switch assembly is threadedly connected to the discharge pipe 21. The discharge port 211 is provided with internal threads. The connecting pipe 261 is in communication with the discharge pipe 21. The connecting pipe 261 is provided with mating external threads. The connecting pipe 261 is threadedly connected to the discharge pipe 21. The handle 262 is welded to the connecting pipe 261. The pressing handle 263 is disposed above the handle 262. The handle 262 and the pressing handle 263 are hinged. The opening valve 264 is disposed within the connecting pipe 261.

[0079] After the breaking assembly destroys the blocking piece 231, the user can press down the pressing handle 263, thereby driving the opening valve 264 downward to open the opening valve 264, so that the fire extinguishing agent within the discharge pipe 21 is discharged from the nozzle 265 to extinguish the fire with the fire extinguisher.

[0080] The control mechanism further includes:

[0081] An insurance assembly is disposed on the discharge pipe 21. The insurance assembly includes an insurance ring 271 and an insurance pin 272. The insurance ring 271 is sleeved on the pressing block 253. One end of the insurance ring 271 abuts against the pressing protrusion 258, and the other end abuts against the top of the control block 251. The insurance pin 272 is inserted between the handle 262 and the pressing handle 263.

[0082] As Figures 1-4 shown, the insurance ring 271 is annular. The insurance ring 271 is provided with a notch. The insurance ring 271 can be sleeved on the pressing block 253 through the notch. The insurance ring 271 can limit the pressing block 253 to prevent the user from accidentally touching the pressing block 253 during transportation, resulting in the pressing block 253 pushing the pushing block 252 to break the blocking piece 231, which can effectively protect the blocking piece 231 and extend the effective period of the fire extinguisher.

[0083] The insurance ring 271 is made of plastic. The plastic has a certain strength and deformation ability, which is convenient for installation and disassembly, has strong chemical stability, low cost, and while having a long service life, reduces the maintenance cost.

[0084] The insurance pin 272 is made of stainless steel. The insurance pin 272 can limit the pressing, preventing the user from accidentally touching the pressing handle 263 during transportation or improper operation to open the switch assembly and protecting the fire extinguisher. One end of the insurance pin 272 is provided with a pull ring. The user can pull out the insurance pin 272 through the pull ring and use the fire extinguisher, which is convenient for the user to operate.

[0085] A material guiding protrusion 11 is provided at the bottom of the bottle body 1, and a bending portion 221 is provided at the bottom of the siphon tube 22, and the bending portion 221 is bent toward the inner wall of the bottle body 1.

[0086] As Figure 3 As shown, a material guiding protrusion 11 is provided at the bottom of the bottle body 1. When the fire extinguishing agent in the bottle body 1 is about to be used up, the remaining fire extinguishing agent will slide down to the bottom edge of the bottle body 1 under the action of gravity. A bending portion 221 is provided at the bottom of the siphon tube 22, and the siphon tube 22 is bent toward the inner wall of the bottle body 1, so that the remaining fire extinguishing agent in the bottle body 1 can be ejected, reducing the remainder of the fire extinguisher in the bottle body 1, improving the utilization rate of the fire extinguishing agent, and reducing the waste of the fire extinguishing agent.

[0087] The above embodiments are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A dry powder fire extinguisher, comprising a bottle body (1) and a nozzle head (2) arranged on the bottle body (1), characterized in that, The nozzle head (2) includes: A discharge pipe (21) which is arranged on the bottle body (1), and a discharge port (211) is provided on the discharge pipe (21); A siphon tube (22) with one end inserted into the interior of the bottle body (1) and the other end threadedly connected to the bottom of the discharge pipe (21); A blocking disk (23) arranged between the discharge pipe (21) and the siphon tube (22); A control mechanism arranged above the discharge pipe (21) for controlling the opening and closing of the fire extinguisher. The control mechanism includes a destruction component and a switch component. The destruction component is arranged above the blocking disk (23), and the switch component is arranged above the discharge port (211); Wherein, a blocking piece (231) is arranged in the blocking disk (23), and a pre-fracture groove (232) is provided on the blocking piece (231), and the destruction component is used for destroying the blocking piece (231).

2. The dry powder fire extinguisher according to claim 1, wherein The destruction component includes: A control block (251) arranged above the blocking disk (23), and a cavity (254) is provided in the control block (251); A push block (252) arranged in the cavity (254). A tip (259) is provided at the bottom of the push block (252), and the tip (259) is inserted into the discharge pipe (21) and is arranged above the pre-fracture groove (232); A pressing block (253) arranged above the control block (251). One end of the pressing block (253) is inserted into the cavity (254) and abuts against the top of the push block (252).

3. The dry powder fire extinguisher according to claim 2, characterized in that, An annular protrusion (255) is provided on the push block (252), and the outer periphery of the annular protrusion (255) abuts against the inner wall of the cavity (254). An elastic member (256) is arranged in the cavity (254), with one end abutting against the bottom of the annular protrusion (255) and the other end abutting against the inner wall of the cavity (254).

4. The dry powder fire extinguisher according to claim 3, characterized in that The pressing block (253) includes: A limit protrusion (257) arranged at one end of the pressing block (253) inserted into the cavity (254), and the bottom of the limit protrusion (257) abuts against the annular protrusion (255), A pressing protrusion (258) arranged at the end of the pressing block (253) away from the cavity (254).

5. The dry powder fire extinguisher according to claim 4, characterized in that, The switch component includes: A connecting pipe (261) arranged above the discharge port (211), and the connecting pipe (261) is threadedly connected to the discharge pipe (21); A handle (262) arranged above the connecting pipe (261); A pressing handle (263) arranged above the handle (262), and the pressing handle (263) is hinged to the handle (262); An opening valve (264) arranged in the connecting pipe (261), and the top of the opening valve (264) passes through the handle (262) and abuts against the bottom of the pressing handle (263); The nozzle (265) is provided on the connecting pipe (261), and the nozzle (265) communicates with the connecting pipe (261).

6. The dry powder fire extinguisher according to claim 5, characterized in that, The control mechanism further includes: A safety component is provided on the discharge pipeline (21). The safety component includes a safety ring (271) and a safety pin (272). The safety ring (271) is sleeved on the pressing block (253). One end of the safety ring (271) abuts against the pressing protrusion (258), and the other end abuts against the top of the control block (251). The safety pin (272) is inserted between the handle (262) and the pressing handle (263).

7. The dry powder fire extinguisher according to claim 1, characterized in that, A material guiding protrusion (11) is provided at the bottom of the bottle body (1), and a bending portion (221) is provided at the bottom of the siphon tube (22). The bending portion (221) bends towards the inner wall of the bottle body (1).

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