Aerosol fire extinguisher convenient for medicament replacement

Abstract

The aerosol fire extinguisher convenient for medicament replacement comprises a fire extinguisher body, an igniter is mounted on the fire extinguisher body, and a bottom cover is detachably mounted at the bottom of the fire extinguisher body; a partition plate is arranged in the fire extinguisher body, a cavity is formed in the side, facing the igniter, of the partition plate in the fire extinguisher body, and an aerosol grain is installed in the cavity; an electric contact is arranged in the cavity or on the bottom cover; the electric contact is electrically connected with the igniter through a conductive structure; the aerosol grain comprises an aerosol generating agent and a coating unit, the aerosol generating agent is located in the coating unit, an electronic ignition head is arranged in the coating unit, an electric contact is arranged at the end of the coating unit, the electronic ignition head is electrically connected with the electric contact, and after the aerosol grain is installed in the cavity, the electric contact makes contact with the electric contact. Through the structure, the aerosol grain is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing device production, in particular to an aerosol fire extinguisher which is convenient for replacing medicaments. Background Art

[0002] Aerosol fire extinguishing devices extinguish fires by starting and igniting the internal aerosol generating agent (charge column) to produce aerosol substances. Currently, aerosol fire extinguishing devices on the market, especially handheld aerosol fire extinguishing devices, are all disposable, that is, after the aerosol fire extinguishing device is used, it cannot be used again, which not only causes waste, but also causes high costs for users.

[0003] For example, Chinese patent document CN208741795U discloses a portable aerosol fire extinguisher, including a shell, a tube body, a nozzle, a powder column, a starting device, and a safety device, characterized in that it also includes a cooling device, the nozzle, the tube body, and a sealed cavity are formed, the powder column and the cooling device are located in the sealed cavity, the nozzle is located at the front end of the tube body, the starting device and the safety device are located at the rear end of the tube body, and the shell is located outside the tube body; the powder column includes an insulation sleeve and an aerosol powder column, the insulation sleeve is in the shape of an open bottle, the aerosol powder column is filled in the insulation sleeve, a countersunk hole is set at the top of the aerosol powder column, and an electric match is installed in the countersunk hole; the cooling device includes a cooling ball, a wire mesh, and a spring; the starting device includes a button, a piezoelectric igniter, a wire, and an electric match. Its characteristics are: the fire extinguisher is small in size, does not require pressure storage, has no residue after extinguishing the fire, the hot aerosol has a long range and a long duration, and the injection flow is stable; its disadvantage is: it is not convenient to replace the powder column.

[0004] Therefore, our company has conducted research and development to address the above issues and designed an aerosol fire extinguisher that is easy to replace the agent. Utility Model Content

[0005] The technical problem to be solved by the utility model is to solve the problems existing in the above-mentioned background technology and provide an aerosol fire extinguisher which is easy to replace the agent, so that after the fire extinguisher is used once, the aerosol agent column can be replaced and used again, thereby reducing waste and lowering the user's use cost.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: an aerosol fire extinguisher that is easy to replace the agent, comprising a fire extinguisher body, an igniter is installed on the fire extinguisher body, and a bottom cover is detachably installed at the bottom of the fire extinguisher body;

[0007] The fire extinguisher body is provided with a partition plate inside, and a cavity is provided inside the fire extinguisher body on the side of the partition plate facing the igniter, and the cavity is used to install the aerosol charge column;

[0008] An electrical contact is provided in the cavity or on the bottom cover, and the electrical contact is electrically connected to the igniter through a conductive structure;

[0009] The aerosol charge column includes an aerosol generator and a coating unit. The aerosol generator is located in the coating unit. An electronic ignition head is arranged in the coating unit. An electric contact is arranged at the end of the coating unit. The electronic ignition head is electrically connected to the electric contact. When the aerosol charge column is installed in the cavity, the electric contact contacts with the electric contact point.

[0010] The igniter is installed in the bottom cover, an electric contact is installed on the side of the partition facing the igniter, and the conductive structure is a wire.

[0011] A fixing cylinder is arranged in the cavity, and the wire passes through between the fixing cylinder and the outer shell of the fire extinguisher body.

[0012] A protective tube is also arranged in the fixing tube.

[0013] A protective cover is also installed at the lower end of the protective tube.

[0014] The bottom cover is provided with at least two plug-ins, the covering unit at the bottom of the fire extinguisher body is provided with a limiting hole, the plug-ins are inserted into the bottom of the fire extinguisher body, and the fasteners pass through the limiting holes and are connected with the plug-ins.

[0015] The electrical contacts are in the form of two semi-rings, and the two semi-rings are respectively connected with conducting wires.

[0016] The two ends of the semi-rings are respectively provided with limiting portions.

[0017] A starting agent is also arranged in the coating unit, and the electronic ignition head is buried in the starting agent.

[0018] The utility model has the following beneficial effects:

[0019] The bottom of the fire extinguisher body of the utility model is detachably provided with a bottom cover, the igniter is located inside the bottom cover, the aerosol powder column is provided with an electronic ignition head and an electric contact, a partition is provided inside the fire extinguisher body, a cavity is provided inside the fire extinguisher body on the side of the partition facing the igniter, the cavity is used to install the aerosol powder column, the side of the partition facing the igniter is provided with an electric contact, and the electric contact is electrically connected to the igniter through a wire. Through the above structure, after the fire extinguisher is used once, the aerosol powder column can be replaced and used again, thereby reducing waste and reducing user use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a cross-sectional view of the utility model when the bottom cover is disassembled.

[0022] Figure 2 This is a cross-sectional view of the bottom cover of the utility model when it is installed on the fire extinguisher body.

[0023] Figure 3 This is a cross-sectional view of the utility model when taking out the aerosol medicine column.

[0024] Figure 4 This is a cross-sectional view of the aerosol medicine column of the utility model.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the electric contact of the utility model.

[0026] Reference numerals

[0027] Fire extinguisher body 10, partition 11, coolant 12, nozzle 13, electrical contact 14, limiter 141, wire 15, limiter hole 16, fastener 17;

[0028] Cavity 20, fixing tube 21, protective tube 22, protective cover 23;

[0029] Aerosol charge 30, aerosol generating agent 31, starting agent 32, coating unit 33, electronic ignition head 35, electric contact 34;

[0030] Bottom cover 40 , igniter 41 , plugboard 42 . DETAILED DESCRIPTION

[0031] See also Figure 1-5 An aerosol fire extinguisher for easy replacement of medicine comprises a fire extinguisher body 10, an igniter 41 is installed on the fire extinguisher body 10, and a bottom cover 40 is detachably installed at the bottom of the fire extinguisher body 10.

[0032] A partition 11 is provided inside the fire extinguisher body 10 . A cavity 20 is provided inside the fire extinguisher body 10 on a side of the partition 11 facing the igniter 41 . The cavity 20 is used to install an aerosol charge column 30 .

[0033] An electrical contact 14 is disposed in the cavity 20 , and the electrical contact 14 is electrically connected to the igniter 41 through a conductive structure.

[0034] The aerosol charge 30 includes an aerosol generator 31 and a coating unit 33. The aerosol generator 31 is located in the coating unit 33. An electronic ignition head 35 is provided in the coating unit 33. An electric contact 34 is provided at the end of the coating unit 33. The electronic ignition head 35 is electrically connected to the electric contact 34. When the aerosol charge 30 is installed in the cavity 20, the electric contact 34 contacts with the electric contact 14.

[0035] The igniter 41 is installed in the bottom cover 40. The side of the partition 11 facing the igniter 41 is provided with an electric contact 14, and the conductive structure is a wire 15. The igniter 41 can be a piezoelectric igniter.

[0036] A coolant 12 is disposed on the upper side of the partition 11 , and a nozzle 13 is disposed on the top of the fire extinguisher body 10 .

[0037] See also Figure 3 The partition 11 is provided with a vent hole to facilitate the discharge of the aerosol medium. The partition 11 can be made of high temperature resistant engineering plastic or ceramic material. The electrical contact 14 can be embedded and fixed on the partition 11.

[0038] The partition 11 is installed inside the fire extinguisher body 10, and its function is to isolate the coolant 12 to prevent the coolant 12 from falling when the aerosol charge column 30 is replaced.

[0039] The above structure facilitates the replacement of the aerosol medicine column 30 .

[0040] In another embodiment, the electric contact 14 is arranged on the bottom cover 40 near the cavity 20, and the electric contact 34 of the aerosol charge 30 is located at one end of the bottom cover 40, while the electronic ignition head 35 is still located near the partition 11. In this way, the igniter 41 and the electric contact 14 form an integrated structure, and the wire 15 is not required, so the structure is simpler, the use is more convenient, and the failure rate can be reduced.

[0041] See also Figure 3 A fixing tube 21 is disposed in the cavity 20, and the wire 15 passes through between the fixing tube 21 and the outer shell of the fire extinguisher body 10. There is a distance between the fixing tube 21 and the outer shell of the fire extinguisher body 10 to prevent the outer shell of the fire extinguisher body 10 from being overheated. It should be noted that the length of the wire 15 has a certain margin to facilitate the opening of the bottom cover 40.

[0042] Furthermore, a protective tube 22 is provided in the fixed tube 21 to provide heat insulation and protection. In a preferred embodiment, the protective tube 22 is made of silicone and is elastically fixed to the fixed tube 21.

[0043] Furthermore, a protective cover 23 is installed at the lower end of the protective tube 22. The protective cover 23 prevents the aerosol charge 30 from shaking and provides heat insulation.

[0044] In one embodiment, see Figure 1 , 2 The bottom cover 40 is provided with two plug-ins 42, or three plug-ins 42, or four plug-ins 42, the covering unit at the bottom of the fire extinguisher body 10 is provided with a limiting hole 16, the plug-ins 42 are inserted into the bottom of the fire extinguisher body 10, and the fastener 17 passes through the limiting hole 16 and is connected to the plug-ins 42. Through the above structure, the bottom cover 40 is detachably connected to the fire extinguisher body 10. The fastener 17 is preferably a screw, which passes through the limiting hole 16 and is screwed to the plug-ins 42.

[0045] When the bottom cover 40 is connected to the fire extinguisher body 10 , the plug plate 42 is inserted into the gap between the fixing tube 21 and the outer shell of the fire extinguisher body 10 .

[0046] See also Figure 5 The electrical contact 14 is in the form of two semi-circular shapes, each of which is connected with a wire 15. The two semi-circular electrical contacts 14 provide a larger contact surface, which facilitates the electrical contact 34 of the aerosol drug column 30 to abut against and contact.

[0047] Furthermore, the two semi-circular ends are respectively provided with limiting portions 141 to prevent the aerosol charge column 30 from vibrating and rotating so that the electric contact 34 moves between the two semi-circular electric contacts 14, causing the fire extinguisher to fail to start. After the limiting portions 141 are provided, the electric contact 34 will only move between the two limiting portions 141 and will not separate from the electric contact 14.

[0048] Of course, a guide groove cooperating with the protective tube 22 may also be provided on the outer wall of the aerosol charge 30 to prevent the aerosol charge 30 from rotating.

[0049] See also Figure 4 In one embodiment, a starting agent 32 is further disposed in the coating unit 33 , and the electronic ignition head 35 is buried in the starting agent 32 .

[0050] Preferably, the coating unit 33 is made of silica gel. The coating unit 33 is located at one end of the starting agent 32 and is a weak part, so that the generated aerosol medium can easily break through the coating unit 33.

[0051] The working process or principle of the utility model is as follows:

[0052] When the aerosol charge column 30 needs to be replaced, the fastener 17 is removed, and the bottom cover 40 is pulled out. When pulling out, pay attention to the length of the wire, and the fire extinguisher body 10 is placed vertically, and the protective cover 23 and the aerosol charge column 30 fall out.

[0053] Afterwards, the fire extinguisher body 10 is rotated 180 degrees so that the nozzle 13 faces downward, and a new aerosol column 30 is placed in the cavity 20. When placing it, the two electrical contacts 34 are respectively between the two limiting parts 141 on the electrical contact 14, and then the protective cover 23 is reinstalled, and then the bottom cover 40 is reinstalled, and the fastener 17 is installed, and the replacement is completed.

Claims

1. An aerosol fire extinguisher that is easy to replace the agent, comprising a fire extinguisher body (10), characterized in that: An igniter (41) is mounted on the fire extinguisher body (10), and a bottom cover (40) is detachably mounted on the bottom of the fire extinguisher body (10); A partition (11) is provided inside the fire extinguisher body (10), and a cavity (20) is provided inside the fire extinguisher body (10) on a side of the partition (11) facing the igniter (41), and the cavity (20) is used to install an aerosol charge column (30); An electrical contact (14) is provided in the cavity (20) or on the bottom cover (40), and the electrical contact (14) is electrically connected to the igniter (41) via a conductive structure; The aerosol charge (30) comprises an aerosol generator (31) and a coating unit (33). The aerosol generator (31) is located in the coating unit (33). An electronic ignition head (35) is arranged in the coating unit (33). An electric contact (34) is arranged at the end of the coating unit (33). The electronic ignition head (35) is electrically connected to the electric contact (34). When the aerosol charge (30) is installed in the cavity (20), the electric contact (34) contacts the electric contact point (14).

2. The aerosol fire extinguisher for easy replacement of medicament according to claim 1, characterized in that: The igniter (41) is installed in the bottom cover (40); an electrical contact (14) is installed on the side of the partition (11) facing the igniter (41); and the conductive structure is a wire (15).

3. An aerosol fire extinguisher that is easy to replace the agent according to claim 1 or 2, characterized in that: A fixing tube (21) is disposed in the cavity (20), and the wire (15) passes through between the fixing tube (21) and the outer shell of the fire extinguisher body (10).

4. The aerosol fire extinguisher for easy replacement of medicament according to claim 3, characterized in that: A protective tube (22) is also provided in the fixing tube (21).

5. The aerosol fire extinguisher for easy replacement of medicament according to claim 4, characterized in that: A protective cover (23) is also installed at the lower end of the protective cylinder (22).

6. An aerosol fire extinguisher that is easy to replace the agent according to claim 1 or 2, characterized in that: The bottom cover (40) is provided with at least two plug plates (42), the covering unit at the bottom of the fire extinguisher body (10) is provided with a limiting hole (16), the plug plates (42) are inserted into the bottom of the fire extinguisher body (10), and the fasteners (17) pass through the limiting holes (16) and are connected to the plug plates (42).

7. The aerosol fire extinguisher for easy replacement of medicament according to claim 2, characterized in that: The electrical contacts (14) are in the form of two semi-rings, with wires (15) respectively connected to the two semi-rings.

8. The aerosol fire extinguisher for easy replacement of medicament according to claim 7, characterized in that: The two ends of the semi-rings are respectively provided with limiting portions (141).

9. An aerosol fire extinguisher that is easy to replace the agent according to claim 1 or 2, characterized in that: A starting agent (32) is also provided in the coating unit (33), and an electronic ignition head (35) is embedded in the starting agent (32).

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