Switch assembly applied to fire extinguisher and fire extinguisher

Abstract

The utility model provides a switch assembly applied to a fire extinguisher and the fire extinguisher, and the switch assembly comprises a handle which comprises a fixed handle and a pressing handle rotationally connected with the fixed handle; the limiting structure comprises a supporting rod and a pull rod which are located between the fixed handle and the pressing handle, the supporting rod is rotatably arranged, the free end of the supporting rod abuts against the side, close to the fixed handle, of the pressing handle, and the pull rod penetrates through the pressing handle to abut against the supporting rod so as to stop the supporting rod. According to the switch assembly applied to the fire extinguisher, the technical problem that the fire extinguisher is inconvenient to operate when being used in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishers, in particular to a switch component used in fire extinguishers and the fire extinguisher. Background Art

[0002] At present, due to the improvement of people's awareness of fire safety, the use of fire extinguishers has become more and more common. When a fire occurs, fire extinguishers play an important role in extinguishing fire hazards, protecting people's lives and property, and reducing the damage caused by fire. There is a safety pin on the handle of the fire extinguisher to ensure safety during daily transportation and storage, and to prevent misoperation due to misoperation or collision. The safety pins of most fire extinguishers on the market are placed on the side. When using, one hand is pulled out from the side to extinguish the fire.

[0003] The safety pins on commonly used fire extinguishers are placed on the side. In the event of a fire, the user must lift the extinguisher with one hand and pull the safety pin with the other. However, in a panic, people may use their dominant hand to lift the handle, leaving the safety pin on the other side unable to open or difficult to pull out, making it difficult to pull out during use. In such cases, people may not be able to pull the safety pin immediately, wasting time. There's also a greater risk that the safety pin won't open due to improper operation, delaying firefighting efforts.

[0004] Therefore, the prior art needs to be further developed. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide a switch assembly and a fire extinguisher for use in a fire extinguisher, so as to solve the technical problem in the related art that the fire extinguisher is inconvenient to operate when in use.

[0006] In order to achieve the above-mentioned technical purpose, the utility model adopts the following technical solutions: a switch assembly for a fire extinguisher is provided, comprising: a handle, the handle comprising a fixed handle and a pressing handle rotatably connected to the fixed handle; a limiting structure, the limiting structure comprising a support rod and a pull rod located between the fixed handle and the pressing handle, the support rod being rotatably arranged, the free end of the support rod abutting against the side of the pressing handle close to the fixed handle, and the pull rod passing through the pressing handle abutting against the support rod to stop the support rod.

[0007] Furthermore, the support rod is hollow and has an accommodating cavity, which is used to accommodate the pull rod.

[0008] Furthermore, a through hole is provided on the pressing handle, and the pull rod passes through the through hole and is inserted into the accommodating cavity.

[0009] Furthermore, the through hole is an elongated hole, and the extending direction of the through hole is the same as the extending direction of the pressing handle.

[0010] Furthermore, a movable pin is installed on the fixed handle, and one end of the support rod away from the free end is passed through the movable pin.

[0011] Furthermore, a pull ring is provided at one end of the pull rod away from the support rod to facilitate pulling the pull rod out.

[0012] Furthermore, the switch assembly also includes a locking structure, which is used to stop the movement of the pull rod.

[0013] Furthermore, the locking structure includes: a first connecting hole, which is opened on the pull rod; a second connecting hole, which is opened on the support rod corresponding to the first connecting hole; and a locking piece, which passes through the second connecting hole and is inserted into the first connecting hole.

[0014] Furthermore, a preset angle is set between the extension direction of the pull rod and the vertical direction, so that the pull rod can be pulled out.

[0015] A fire extinguisher includes the switch assembly applied to the fire extinguisher as described above.

[0016] Beneficial effects:

[0017] 1. The pull rod passes through the pressing handle and abuts against the support rod. The pulling part for pulling the pull rod is located above the pressing handle, which is convenient for the user to exert force. During use, the user uses the dominant hand to carry the fire extinguisher, and the remaining hand, whether left or right, can quickly contact the pull rod located above the pressing handle and pull out the pull rod, so that the pull rod can be pulled open at the first time. While ensuring that the original function remains unchanged, the pull rod can be pulled open faster, avoiding time waste, and is not affected by the holding method, thereby improving the operation convenience of the fire extinguisher and solving the technical problem of the inconvenience of operating the fire extinguisher in the related art.

[0018] 2. By setting a limit structure, the pull rod and the support rod are in contact with each other to prevent the support rod from rotating, so that the free end of the support rod is kept in contact with the pressing handle, and the pressing handle is kept in a locked state to prevent the fire extinguisher valve from being opened. When using the fire extinguisher, the pull rod is pulled out and the support rod falls naturally. At this time, the pressing handle can be pressed to open the fire extinguisher valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a switch assembly used in a fire extinguisher according to an embodiment of the present invention;

[0020] Figure 2 It is a structural schematic diagram of a pressing handle of a switch assembly applied to a fire extinguisher adopted in an embodiment of the present utility model.

[0021] The above drawings include the following reference numerals:

[0022] 1. Handle; 11. Fixed handle; 111. Movable pin; 12. Pressing handle; 121. Through hole; 2. Limiting structure; 21. Support rod; 211. Free end; 212. Accommodating cavity; 22. Pull rod; 221. Pull ring; 3. Locking structure; 31. First connecting hole; 32. Second connecting hole; 33. Locking piece. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention 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, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0024] As described in the background technology, when a dangerous situation occurs, people may use their dominant hand to carry the handle in a panic. If the safety pin is on the side of the nozzle, the person's hand may be on the other side of the safety pin. For example, when using the right hand to carry the fire extinguisher, if the safety pin is on the right side of the handle, the free left hand needs to go around the right side of the handle to pull out the safety pin. It will be difficult to pull out the pin due to the wrong force direction. As a result, the safety pin cannot be opened or is difficult to pull out. It is inconvenient to pull and pull during use, and the user cannot pull the safety pin immediately, which will waste time and accelerate the spread of the dangerous situation.

[0025] According to an embodiment of the present invention, a switch assembly for a fire extinguisher is provided. Figures 1 to 2 , including: a handle 1, the handle 1 includes a fixed handle 11 and a pressing handle 12 rotatably connected to the fixed handle 11; a limiting structure 2, the limiting structure 2 includes a support rod 21 and a pull rod 22 located between the fixed handle 11 and the pressing handle 12, the support rod 21 is rotatably arranged, the free end 211 of the support rod 21 abuts against the side of the pressing handle 12 close to the fixed handle 11, and the pull rod 22 passes through the pressing handle 12 and abuts against the support rod 21 to stop the support rod 21.

[0026] Specifically, by pressing the pressing handle 12, the fire extinguisher valve can be controlled to open.

[0027] By setting the limiting structure 2, the pull rod 22 abuts against the support rod 21 to prevent the support rod 21 from rotating, so that the free end 211 of the support rod 21 is kept in abutment with the pressing handle 12, so that the pressing handle 12 remains in a locked state, preventing the fire extinguisher valve from being opened. When using the fire extinguisher, the pull rod 22 is pulled out, and the support rod 21 falls naturally. At this time, the pressing handle 12 can be pressed to open the fire extinguisher valve; the pull rod 22 passes through the pressing handle 12 and abuts against the support rod 21, and the pulling part for pulling the pull rod 22 is located on the pressing handle 12. The handle 12 is located above the user's hand, which is convenient for the user to exert force. During use, the user uses the dominant hand to carry the fire extinguisher, and the remaining hand, whether the left hand or the right hand, can quickly contact the pull rod 22 located above the pressing handle 12 and pull out the pull rod 22, so that the pull rod 22 can be pulled out at the first time. While ensuring that the original function remains unchanged, the pull rod 22 can be pulled out faster to avoid wasting time and is not affected by the holding method, thereby improving the operation convenience of the fire extinguisher and solving the technical problem of the inconvenience of operating the fire extinguisher in the related art.

[0028] In the switch assembly applied to the fire extinguisher of this embodiment, see Figure 1 The support rod 21 is hollow and provided with an accommodating cavity 212, which is used to accommodate the pull rod 22. Specifically, by inserting the pull rod 22 into the accommodating cavity 212, the support rod 21 is blocked from rotating, so that the support rod 21 and the pressing handle 12 are kept in contact.

[0029] In the switch assembly applied to the fire extinguisher of this embodiment, see Figure 2 A through hole 121 is provided on the pressing handle 12, and the pull rod 22 passes through the through hole 121 and is inserted into the accommodating cavity 212. Through the above arrangement, the pull rod 22 can enter the accommodating cavity 212 after passing through the through hole 121, and at the same time, the pull rod 22 can be stopped and limited by the through hole 121.

[0030] In the switch assembly applied to the fire extinguisher of this embodiment, see Figure 2 The through hole 121 is an elongated hole, and the extending direction of the through hole 121 is the same as the extending direction of the pressing handle 12. Through the above arrangement, the support rod 21 can be connected to the pull rod 22 within the length range of the through hole 121, thereby stopping the support rod 21 and improving the convenience of locking the pressing handle 12.

[0031] In the switch assembly applied to the fire extinguisher of this embodiment, see Figure 1 The fixed handle 11 is provided with a movable pin 111, and the end of the support rod 21 away from the free end 211 is passed through the movable pin 111. Through the above arrangement, the support rod 21 is rotatably connected to the fixed handle 11. When the pull rod 22 is pulled out, the support rod 21 will fall down under its own weight, and the pressing handle 12 can be pressed at this time.

[0032] In the switch assembly applied to the fire extinguisher of this embodiment, see Figure 1 A pull ring 221 is provided at one end of the pull rod 22 away from the support rod 21 to facilitate pulling out the pull rod 22. Specifically, the pull ring 221 is located above the pressing handle 12. The pull ring 221 serves as a pulling portion on the pull rod 22, making it easier for a person to hold the pull rod 22, thereby improving the operating convenience of the switch assembly.

[0033] In the switch assembly applied to the fire extinguisher of this embodiment, see Figure 1 The switch assembly further includes a locking structure 3 for stopping the movement of the pull rod 22. The locking structure 3 can stop the movement of the pull rod 22, thereby preventing the pull rod 22 from escaping from the accommodating chamber 212. For example, during the transportation of the fire extinguisher, the locking structure 3 can be used for temporary locking to prevent the pull rod 22 from detaching during transportation and causing the fire extinguisher valve to be opened.

[0034] In the switch assembly applied to the fire extinguisher of this embodiment, see Figure 1 The locking structure 3 includes a first connection hole 31 formed on the pull rod 22; a second connection hole 32 formed on the support rod 21 corresponding to the first connection hole 31; and a locking member 33 inserted into the first connection hole 31 after passing through the second connection hole 32. With this arrangement, the pull rod 22 can be locked by simultaneously inserting the locking member 33 into the second connection hole 32 and the first connection hole 31. When the locking member 33 is removed, the pull rod 22 can be inserted and removed normally.

[0035] In the switch assembly applied to the fire extinguisher of this embodiment, see Figure 1 A preset angle A is set between the extension direction of the pull rod 22 and the vertical direction to facilitate pulling out the pull rod 22. By setting the preset angle A between the extension direction of the pull rod 22 and the vertical direction, the preset angle A is preferably 30 degrees, thereby facilitating the user to quickly pull out the pull rod 22.

[0036] In the fire extinguisher of this embodiment, see Figure 1 The fire extinguisher includes the aforementioned switch assembly for use in a fire extinguisher. In the fire extinguisher of this embodiment, the pull rod 22 is arranged in a vertical direction. This allows the pull rod 22 to be pulled out more quickly while maintaining its original function. The pull ring 221 is positioned above the pressing handle 12. This saves time in changing hands during actual use, allows for faster use, and is more convenient for personnel to apply force, allowing for faster removal without being affected by the gripping method.

[0037] Specifically, the usage process of the fire extinguisher in this embodiment is as follows: when the fire extinguisher is not in use, the support rod 21 abuts against the pressing handle 12, so that the applicable personnel cannot press it at will. When in use, pull the pull ring 221. When the pull rod 22 is pulled out, the support rod 21 will fall with its own weight. At this time, the handle can be used normally, and the pressing handle 12 can be pressed to open the fire extinguisher valve.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0040] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0041] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0042] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A switch assembly for a fire extinguisher, characterized in that: include: A handle (1), the handle (1) comprising a fixed handle (11) and a pressing handle (12) rotatably connected to the fixed handle (11); A limiting structure (2), the limiting structure (2) includes a support rod (21) and a pull rod (22) located between the fixed handle (11) and the pressing handle (12), the support rod (21) being rotatably arranged, the free end (211) of the support rod (21) abutting against a side of the pressing handle (12) close to the fixed handle (11), and the pull rod (22) passing through the pressing handle (12) abutting against the support rod (21) to stop the support rod (21).

2. The switch assembly for fire extinguisher according to claim 1, characterized in that: The support rod (21) is hollow and provided with an accommodating cavity (212), and the accommodating cavity (212) is used to accommodate the pull rod (22).

3. The switch assembly for fire extinguisher according to claim 2, characterized in that: A through hole (121) is provided on the pressing handle (12), and the pull rod (22) passes through the through hole (121) and is inserted into the accommodating cavity (212).

4. The switch assembly for fire extinguisher according to claim 3, characterized in that: The through hole (121) is a long hole, and the extending direction of the through hole (121) is the same as the extending direction of the pressing handle (12).

5. The switch assembly for fire extinguisher according to claim 1, characterized in that: A movable pin (111) is mounted on the fixed handle (11), and one end of the support rod (21) away from the free end (211) is passed through the movable pin (111).

6. The switch assembly for fire extinguisher according to claim 1, characterized in that: A pull ring (221) is provided at one end of the pull rod (22) away from the support rod (21) so as to pull out the pull rod (22).

7. The switch assembly for fire extinguisher according to claim 1, characterized in that: The switch assembly further comprises a locking structure (3), wherein the locking structure (3) is used to stop the movement of the pull rod (22).

8. The switch assembly for fire extinguisher according to claim 7, characterized in that: The locking structure (3) comprises: a first connecting hole (31), the first connecting hole (31) being formed on the pull rod (22); a second connecting hole (32), the second connecting hole (32) corresponding to the first connecting hole (31) and formed on the support rod (21); A locking member (33), wherein the locking member (33) passes through the second connecting hole (32) and is inserted into the first connecting hole (31).

9. The switch assembly for fire extinguisher according to claim 1, characterized in that: A preset angle is provided between the extension direction of the pull rod (22) and the vertical direction, so that the pull rod (22) can be pulled out.

10. A fire extinguisher, characterized in that: The fire extinguisher includes the switch assembly applied to a fire extinguisher according to any one of claims 1 to 9.

Images