Dry powder fire extinguisher press switch with labor-saving structure

Abstract

The utility model discloses a dry powder fire extinguisher press switch with laborsaving structure, and the device comprises a press handle, the press handle is combined by fixed handle and movable handle, the inside of movable handle is provided with the extension handle end rotation connection in the inside of movable handle in extension fixed unit, and the fixed clamping piece is arranged at the connecting place of movable handle and extension handle, and the inside of fixed handle is rotationally connected with the inside of extension handle, and the inside of extension handle is rotationally connected with the inside of extension handle, when needing to carry out the continuous pressing operation, the extension handle can be turned over from the inside of movable handle, the fixed clamping piece is used for fixing the extension handle, the overall length of press handle is prolonged, the force arm is increased, and the turning fixed ring is used for fixing the extension handle after turning over and fixing, so that the operator does not need to bear the great force for a long time, and the user's demand is satisfied.

Description

Technical Field

[0001] This utility model relates to the field of dry powder fire extinguisher technology, and in particular to a dry powder fire extinguisher push switch with a labor-saving structure. Background Technology

[0002] Dry powder fire extinguishers are a common type of fire-fighting equipment, and the push-button switch is the key control component for enabling fire extinguishing operations. When a fire occurs and a dry powder fire extinguisher needs to be used, the operator presses the push-button switch to open the extinguishing agent channel inside the extinguisher, causing the dry powder extinguishing agent to be sprayed out under pressure, thereby achieving the purpose of extinguishing the fire.

[0003] Based on the fire extinguishing needs and fire situation at the scene, there are two main methods of operation for pressing the buttons. The first is continuous pressing, and the second is intermittent pressing. However, when using continuous pressing, the operator's hand needs to withstand a large amount of force for a prolonged period, which can put a significant strain on the hand, easily leading to hand fatigue and soreness, and may even affect the stability and effectiveness of the fire extinguishing operation. At the same time, the handles of existing dry powder fire extinguisher switches are generally short. During the pressing process, the short handle results in a short lever arm. According to the lever principle, the operator needs to apply greater force to achieve the desired pressing effect, resulting in greater operational resistance. In the face of an emergency fire, this limitation can delay the fire extinguishing opportunity and reduce fire extinguishing efficiency.

[0004] The reason for this problem is that during continuous pressing, the hand muscles need to be in a state of tension and contraction for a long time to maintain the pressing force. As the pressing time increases, the fatigue of the hand muscles will gradually accumulate, leading to symptoms such as soreness and weakness in the hand. The reason why the handle is not made longer in the current technology is mainly to take into account the overall portability and storage space requirements of dry powder fire extinguishers. This has resulted in the current situation where the handle is relatively short and the operating resistance is relatively high. Utility Model Content

[0005] The purpose of this invention is to provide a dry powder fire extinguisher push-button switch with a labor-saving structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A dry powder fire extinguisher push switch with a labor-saving structure, including a push handle, wherein the push handle is composed of a fixed handle and a movable handle, and the movable handle is provided with an extension fixing unit including an extension handle, a fixing clip and a flip fixing ring.

[0007] The end of the extension handle is rotatably connected to the inside of the movable handle. The fixing clip is set at the connection between the movable handle and the extension handle. The fixing clip is used to fix the extension handle after it is flipped. The flipping fixing ring is rotatably connected to the inside of the fixed handle. The flipping fixing ring is movably engaged with the inside of the extension handle.

[0008] Preferably, the fixing member includes a rotating shaft and a fixing block;

[0009] The rotating shaft is fixedly assembled inside the movable handle, and the rotating shaft is rotatably connected to the fixed handle. A guide groove is provided inside the rotating shaft. The fixed block is fixedly assembled inside the rotating shaft.

[0010] Preferably, the fixing member further includes a spring and a plug rod;

[0011] One end of the spring is fixedly assembled with the fixing block; the insertion rod is slidably connected inside the guide groove, and the other end of the spring is fixedly assembled with the insertion rod.

[0012] Preferably, the fixing clip further includes a fixing rod and a rotating plate;

[0013] The fixing rod is fixedly assembled on one side of the insertion rod; the rotating plate is rotatably connected to the end of the fixing rod.

[0014] Preferably, the fixing clip further includes an insertion hole;

[0015] The insertion hole is located inside the movable handle, one half of the insertion rod is movably engaged inside the insertion hole, and the other half of the insertion rod is movably engaged inside the guide groove.

[0016] Preferably, one end of the flipping fixing ring is fixedly fitted with a rotating shaft, the rotating shaft is rotatably connected to the fixed handle, a torsion spring is wound around the outer surface of the rotating shaft, one end of the torsion spring is fixedly fitted to the rotating shaft, and the other end of the torsion spring is fixedly fitted to the fixed handle.

[0017] Preferably, the extension handle has a slot inside, and the flip-fixing ring is movably engaged inside the slot.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] This device features an extension handle inside the movable handle. When continuous pressing is required, the extension handle can be flipped out from within the movable handle and secured with a fixing clip, extending the overall length of the pressing handle and increasing the lever arm. Based on the lever principle, the operator needs to exert less force to achieve the same pressing effect, effectively reducing operational resistance and improving the stability and sustainability of fire extinguishing operations. Furthermore, the flip-and-fixing ring is used to secure the extension handle after it has been flipped and fixed, ensuring that the operator does not have to bear a large force for an extended period, thus meeting user needs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the press handle of this utility model;

[0022] Figure 3 This is a schematic diagram of the extended handle of this utility model;

[0023] Figure 4 This is a schematic diagram of the fixing clip of this utility model.

[0024] In the diagram: 1. Press handle; 11. Fixed handle; 12. Movable handle; 2. Extension fixing unit; 21. Extension handle; 22. Fixing clip; 221. Rotating shaft; 222. Fixing block; 223. Spring; 224. Insert rod; 225. Fixing rod; 226. Rotating plate; 227. Insertion hole; 23. Flip fixing ring; 24. Slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides, for example Figure 1 The dry powder fire extinguisher push switch with a labor-saving structure shown includes a push handle 1. The push handle 1 is composed of a fixed handle 11 and a movable handle 12. The movable handle 12 is provided with an extension fixing unit 2, which includes an extension handle 21, a fixing clip 22 and a flip fixing ring 23.

[0027] The end of the extension handle 21 is rotatably connected to the inside of the movable handle 12. The fixing clip 22 is set at the connection between the movable handle 12 and the extension handle 21. The fixing clip 22 is used to fix the extension handle 21 after it is flipped. The flipping fixing ring 23 is rotatably connected to the inside of the fixed handle 11. The flipping fixing ring 23 is movably locked into the inside of the extension handle 21.

[0028] Example 1: In this example, when the extension function is not needed, the extension handle 21 is stored inside the movable handle 12, without increasing the overall size of the device, ensuring the portability of the fire extinguisher. When continuous pressing is required, the extension handle 21 is unlocked by the fixing clip 22, allowing it to be flipped open from inside the movable handle 12 around the end pin. The fixing clip 22 is then used to fix its position, and simultaneously, the flipping fixing ring 23, under the action of its own pivot torsion spring, engages with the slot 24 inside the extension handle 21, further enhancing the stability of the extension handle 21. At this time, the overall length of the pressing handle 1 increases, and the lever arm becomes longer. According to the lever principle, the force required for the operator to press the movable handle 12 is greatly reduced, reducing operating resistance, lessening hand burden, and facilitating stable fire extinguishing for extended periods. After the fire is extinguished, the extension handle 21 can be flipped open again by the fixing clip 22 and stored back inside the movable handle 12.

[0029] like Figures 2 to 4 The dry powder fire extinguisher push switch with a labor-saving structure shown includes a push handle 1. The push handle 1 is composed of a fixed handle 11 and a movable handle 12. The movable handle 12 is provided with an extension fixing unit 2, which includes an extension handle 21, a fixing clip 22 and a flip fixing ring 23.

[0030] The end of the extension handle 21 is rotatably connected to the inside of the movable handle 12. The fixing clip 22 is set at the connection between the movable handle 12 and the extension handle 21. The fixing clip 22 is used to fix the extension handle 21 after it is flipped. The flipping fixing ring 23 is rotatably connected to the inside of the fixed handle 11. The flipping fixing ring 23 is movably locked into the inside of the extension handle 21.

[0031] The fixing clip 22 includes a rotating shaft 221 and a fixing block 222. The rotating shaft 221 is fixedly mounted inside the movable handle 12 and is rotatably connected to the fixed handle 11. A guide groove is provided inside the rotating shaft 221. The fixing block 222 is fixedly mounted inside the rotating shaft 221. The fixing clip 22 also includes a spring 223 and a plug rod 224. One end of the spring 223 is fixedly mounted to the fixing block 222. The plug rod 224 is slidably connected inside the guide groove, and the other end of the spring 223 is fixedly mounted to the plug rod 224. The fixing clip 22 also includes a fixing rod 225 and a rotating plate 226. The fixing rod 225 is fixedly mounted to one side of the plug rod 224. The rotating plate 226 is rotatably connected to the end of the fixing rod 225. The fixing clip 22 also includes a socket 227. The socket 227 is opened inside the movable handle 12. Half of the plug rod 224 is movably engaged inside the socket 227, and the other half of the plug rod 224 is movably engaged inside the guide groove. A rotating shaft is fixedly mounted on one end of the flip-fixed ring 23. The rotating shaft is rotatably connected to the fixed handle 11. A torsion spring is wound around the outer surface of the rotating shaft. One end of the torsion spring is fixedly mounted to the rotating shaft, and the other end of the torsion spring is fixedly mounted to the fixed handle 11. A slot 24 is provided inside the extension handle 21, and the flip-fixed ring 23 is movably engaged inside the slot 24.

[0032] Example 2: In this example, under normal conditions, the spring 223 is in a naturally extended or slightly compressed state, pushing the insertion rod 224 to slide in the guide groove, so that half of the insertion rod 224 is inserted into the insertion hole 227 inside the movable handle 12, and the other half remains in the guide groove, thereby limiting and fixing the extension handle 21 and preventing it from shaking randomly. When the extension handle 21 needs to be unlocked, the operator pushes the rotating plate 226 inward. The rotating plate 226 drives the fixed rod 225, which is rotatably connected to it, to move. The fixed rod 225 pushes the insertion rod 224 to slide along the guide groove away from the insertion hole 227. At this time, the spring 223 is compressed and stored, and the insertion rod 224 disengages from the insertion hole 227, releasing the limitation on the extension handle 21. When the extension handle 21 is flipped to the appropriate position, the rotating plate 226 is released, the spring 223 releases its stored force, and pushes the insertion rod 224 to slide in the opposite direction, re-engaging it into the corresponding insertion hole 227, thus fixing the extension handle 21 again. The entire unlocking and fixing process is simple and convenient to operate, and the state of the extension handle 21 can be quickly switched. By flipping the rotating fixing ring 23, it is locked inside the slot 24, allowing the fire extinguisher to spray continuously, meeting the user's needs.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A push-button switch for a dry powder fire extinguisher with a labor-saving structure, comprising a push-button handle (1), wherein the push-button handle (1) is composed of a fixed handle (11) and a movable handle (12), characterized in that, The movable handle (12) is internally provided with an extension fixing unit (2) including an extension handle (21), a fixing clip (22), and a flip fixing ring (23): The end of the extension handle (21) is rotatably connected to the inside of the movable handle (12). The fixing clip (22) is set at the connection between the movable handle (12) and the extension handle (21). The fixing clip (22) is used to fix the extension handle (21) after it is flipped. The flipping fixing ring (23) is rotatably connected to the inside of the fixed handle (11). The flipping fixing ring (23) is movably engaged in the inside of the extension handle (21).

2. The push-button switch for a dry powder fire extinguisher with a labor-saving structure according to claim 1, characterized in that, The fixing clip (22) includes: A rotating shaft (221) is fixedly mounted inside the movable handle (12). The rotating shaft (221) is rotatably connected to the fixed handle (11). A guide groove is provided inside the rotating shaft (221). The fixing block (222) is fixedly assembled inside the rotating shaft (221).

3. A push-button switch for a dry powder fire extinguisher with a labor-saving structure according to claim 2, characterized in that, The fixing clip (22) also includes: A spring (223) is fixedly assembled at one end with a fixing block (222); The insert rod (224) is slidably connected inside the guide groove, and the other end of the spring (223) is fixedly assembled with the insert rod (224).

4. A push-button switch for a dry powder fire extinguisher with a labor-saving structure according to claim 3, characterized in that, The fixing clip (22) also includes: A fixing rod (225) is fixedly assembled on one side of the insert rod (224); The rotating plate (226) is rotatably connected to the end of the fixed rod (225).

5. A dry powder fire extinguisher push-button switch with a labor-saving structure according to claim 3, characterized in that, The fixing clip (22) also includes: The insertion hole (227) is located inside the movable handle (12), and one half of the insertion rod (224) is movably engaged inside the insertion hole (227), while the other half of the insertion rod (224) is movably engaged inside the guide groove.

6. A push-button switch for a dry powder fire extinguisher with a labor-saving structure according to claim 1, characterized in that, One end of the flipping fixing ring (23) is fixedly fitted with a rotating shaft, which is rotatably connected to the fixed handle (11). A torsion spring is wound around the outer surface of the rotating shaft. One end of the torsion spring is fixedly fitted to the rotating shaft, and the other end of the torsion spring is fixedly fitted to the fixed handle (11).

7. A dry powder fire extinguisher push-button switch with a labor-saving structure according to claim 1, characterized in that, The extension handle (21) has a slot (24) inside, and the flip-fixing ring (23) is movably engaged inside the slot (24).

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