Pressure measuring device for fire extinguishers

Abstract

The utility model belongs to fire extinguisher technical field, concretely relates to a fire extinguisher pressure measuring device, including base, the top of base is provided with electric pressure measuring pump, the side of base is provided with pressure measuring anti -loosening subassembly, pressure measuring anti -loosening subassembly includes bottom plate, the side of bottom plate is fixedly connected in the side of base, the top of bottom plate is fixedly connected with support frame, the top of bottom plate is fixedly connected with electric telescopic handle, one end of electric telescopic handle is fixedly connected with the supporting plate, the top of supporting plate is provided with fire extinguisher tank body, the side of electric pressure measuring pump is penetrated with output pipe, the side of support frame is fixedly connected with the cross pipe, the utility model solves the problem that pressure measuring device cannot automatically clamp the connecting place of pressure measuring pipe and tank body, leads to the connecting place loose pressure leakage or data deviation, cannot guarantee the accuracy of pressure measuring data, thereby reaches the effect that prevents loosening, guarantees the accuracy of pressure measuring data.

Description

Technical Field

[0001] This utility model belongs to the field of fire extinguisher technology, specifically relating to a fire extinguisher pressure measuring device. Background Technology

[0002] A fire extinguisher pressure testing device is a device used to check whether the internal pressure of a fire extinguisher is within acceptable limits. The working principle of a fire extinguisher relies on maintaining a certain level of internal pressure to ensure that the extinguishing agent can be effectively sprayed. The pressure testing device typically consists of a pressure gauge, connecting pipes, and valves. The pressure gauge is used to display the pressure value inside the fire extinguisher in real time, while the connecting pipes connect the pressure testing device to the valve of the fire extinguisher.

[0003] Patent publication number CN204758405U discloses a fire extinguisher cylinder pressure measuring device, including a water tank, a protective cover, a detection gas circuit, and a fire extinguisher cylinder fixing mechanism. The gas inlet valve of the detection gas circuit is located between the gas inlet pipe and the main filling pipe. The main filling pipe is equipped with more than one throttle valve. The output end of the throttle valve leads out to the filling branch pipe, and the gas outlet pipe is located at the other end of the main filling pipe.

[0004] However, the current pressure testing device for fire extinguisher cylinders has the following problems: the device cannot automatically clamp the connection between the pressure testing tube and the cylinder, resulting in loose connection, pressure leakage or data deviation, which cannot guarantee the accuracy of the pressure test data. Therefore, we have proposed a fire extinguisher pressure testing device. Utility Model Content

[0005] The purpose of this invention is to provide a fire extinguisher pressure testing device that can solve the problem in related technologies where the pressure testing device cannot automatically clamp the connection between the pressure testing tube and the tank, resulting in loose connection, pressure leakage or data deviation, and thus failing to guarantee the accuracy of the pressure testing data.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A fire extinguisher pressure testing device includes a base, an electric pressure testing pump mounted on the top of the base, and a pressure testing anti-loosening assembly mounted on the side of the base. The anti-loosening assembly includes a base plate, the side of which is fixedly connected to the side of the base. A support frame is fixedly connected to the top of the base plate, and an electric telescopic rod is fixedly connected to the top of the base plate. One end of the electric telescopic rod is fixedly connected to a support plate, and a fire extinguisher tank is mounted on the top of the support plate. An output pipe extends through the side of the electric pressure testing pump, and a horizontal pipe is fixedly connected to the side of the support frame. The output pipe is located away from the electric pressure testing pump. One end of the device passes through one end of the horizontal tube. A pressure measuring tube passes through the outer wall of the horizontal tube. The end of the pressure measuring tube away from the horizontal tube passes through the top of the fire extinguisher tank. A vertical rod is fixedly connected to the top of the base plate. A motor is fixedly connected to the side of the vertical rod. A double-acting screw is fixedly connected to the output shaft of the motor. A threaded sleeve is threaded on the circumference of the double-acting screw. A limit rod is fixedly connected to the side of the motor. The end of the limit rod away from the motor passes through the side of the threaded sleeve. A clamping plate is fixedly connected to the side of the threaded sleeve. A pressure gauge is installed on the top of the electric pressure pump.

[0008] Two threaded sleeves and clamps are provided and are symmetrical to each other along the vertical central axis of the bidirectional screw. The clamps are located on the side of the pressure measuring tube and the fire extinguisher tank. The provision of two clamps helps to clamp the connection between the pressure measuring tube and the fire extinguisher tank and prevent loosening.

[0009] Two pallets and electric telescopic rods are provided and arranged linearly on the top of the base plate. Two sets of bidirectional screws, threaded sleeves, and clamps are provided. The provision of two sets of clamps helps to prevent the two fire extinguisher tanks and pressure measuring pipes from becoming loose at the same time.

[0010] A soft pad is fixedly connected to the inner wall of the clamping plate, a valve is provided at one end of the horizontal tube, two pressure measuring tubes are provided, and several pressure gauges are provided. Providing multiple pressure gauges is beneficial for viewing multiple air pressures.

[0011] The top of the base plate is provided with an anti-clogging component, which includes a squeezing rod. One end of the squeezing rod is fixedly connected to the side of the threaded sleeve. A support rod is fixedly connected to the side of the vertical rod. A rectangular plate is fixedly connected to the top of the support rod. A rotating plate is rotatably connected to the inner wall of the rectangular plate. A short rod is fixedly connected to the circumference of the rotating plate. A striking rod is fixedly connected to the circumference of the rotating plate. The striking rod is used to strike the outer wall of the horizontal tube to clear the blockage and prevent the horizontal tube from becoming blocked, which would affect the pressure measurement.

[0012] The short rod is located on the displacement trajectory of the extrusion rod, the striking rod is located at the top of the horizontal tube, and the horizontal tube is located on the displacement trajectory of the striking rod. This design is beneficial for directly striking the horizontal tube when the striking rod moves.

[0013] A spring is fixedly connected to the bottom of the rectangular plate, and the end of the spring away from the rectangular plate is fixedly connected to the top of the striking rod. There are two striking rods. The spring design allows the striking rod to automatically return to its original position when it does not move.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention utilizes the coordinated design of components such as the internal support frame, clamping plate, bidirectional lead screw, and motor of the pressure testing and anti-loosening assembly. This allows for the automatic lifting and lowering of the pallet via an electric telescopic rod, eliminating the need for manual lifting of the fire extinguisher tank and facilitating loading and unloading. It also ensures the accuracy of pressure test data. The motor-driven arc-shaped clamping plate automatically clamps the connection between the pressure testing tube and the tank, offering flexible operation and strong adaptability. The motor can rotate in both directions and control the opening and closing of the clamping plate to complete the clamping or loosening action, effectively preventing pressure leakage or data deviation caused by loosening.

[0016] This invention utilizes the coordinated design of components such as the striking rod, squeezing rod, spring, and rotating plate within the pressure testing and anti-loosening assembly to automatically unclog pipelines. A mechanical linkage structure causes the striking rod to vibrate the horizontal pipe when the clamping plate is loosened, effectively preventing pipeline blockage from affecting pressure testing accuracy. The unclogging function is achieved without additional operation. The unclogging mechanism is triggered by the reverse movement of the threaded sleeve, saving additional manpower and time costs. It also features automatic reset capability, and the spring structure ensures that the striking assembly returns to its original position after unclogging, guaranteeing the stability and convenience of the device for repeated use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional overall appearance schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional side view structure of the support frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure at the base plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the clamping plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the striking rod of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 2. Electric pressure pump; 3. Pressure testing anti-loosening assembly; 31. Base plate; 32. Support frame; 33. Output pipe; 34. Horizontal pipe; 35. Pressure testing pipe; 36. Electric telescopic rod; 37. Support plate; 38. Fire extinguisher tank; 39. Vertical rod; 310. Motor; 311. Two-way lead screw; 312. Threaded sleeve; 313. Clamping plate; 314. Pressure gauge; 315. Limiting rod; 4. Anti-clogging assembly; 41. Extrusion rod; 42. Support rod; 43. Rectangular plate; 44. Rotating plate; 45. Short rod; 46. Striking rod; 47. Spring; 5. Valve. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-5 As shown, a fire extinguisher pressure testing device includes a base 1. An electric pressure testing pump 2 is installed on the top of the base 1. A pressure testing anti-loosening component 3 is installed on the side of the base 1. The pressure testing anti-loosening component 3 includes a base plate 31. The side of the base plate 31 is fixedly connected to the side of the base 1. A support frame 32 is fixedly connected to the top of the base plate 31. An electric telescopic rod 36 is fixedly connected to the top of the base plate 31. A support plate 37 is fixedly connected to one end of the electric telescopic rod 36. A fire extinguisher tank 38 is installed on the top of the support plate 37. An output pipe 33 passes through the side of the electric pressure testing pump 2. A horizontal pipe 34 is fixedly connected to the side of the support frame 32. The end of the output pipe 33 away from the electric pressure testing pump 2 passes through the horizontal pipe 34. At one end, a pressure measuring tube 35 passes through the outer wall of the horizontal tube 34. The end of the pressure measuring tube 35 away from the horizontal tube 34 passes through the top of the fire extinguisher tank 38. A vertical rod 39 is fixedly connected to the top of the base plate 31. A motor 310 is fixedly connected to the side of the vertical rod 39. A double-acting screw 311 is fixedly connected to the output shaft of the motor 310. A threaded sleeve 312 is threadedly connected to the circumference of the double-acting screw 311. A limit rod 315 is fixedly connected to the side of the motor 310. The end of the limit rod 315 away from the motor 310 passes through the side of the threaded sleeve 312. A clamping plate 313 is fixedly connected to the side of the threaded sleeve 312. A pressure gauge 314 is installed on the top of the electric pressure pump 2.

[0026] Two threaded sleeves 312 and clamping plates 313 are provided and are symmetrical to each other along the vertical central axis of the bidirectional screw 311. The clamping plates 313 are located on the side of the pressure measuring tube 35 and the fire extinguisher tank 38. The provision of two clamping plates 313 is beneficial to clamp the connection between the pressure measuring tube 35 and the fire extinguisher tank 38 and prevent loosening.

[0027] There are two support plates 37 and electric telescopic rods 36, which are arranged in a linear array on the top of the base plate 31. There are two sets of bidirectional screw rods 311, threaded sleeves 312 and clamping plates 313. The two sets of clamping plates 313 help to prevent the two fire extinguisher tanks 38 and pressure measuring pipes 35 from becoming loose at the same time.

[0028] A soft pad is fixedly connected to the inner wall of the clamp 313. A valve 5 is installed at one end of the horizontal tube 34. Two pressure measuring tubes 35 are installed. Several pressure gauges 314 are installed. Installing multiple pressure gauges 314 is beneficial for viewing multiple air pressures.

[0029] Based on the above structure, the fire extinguisher canister 38, which needs to be pressure tested, is placed on the support plate 37. An electric telescopic rod 36 is installed at the bottom of the support plate 37, facilitating the vertical extension and retraction of the support plate 37. This makes it easy to place the fire extinguisher canister 38 on the support plate 37 and also facilitates its removal, reducing manual lifting. The electric pressure pump 2 is activated, connected via the output pipe 33 and the horizontal pipe 34. The horizontal pipe 34 is connected to the top of the fire extinguisher canister 38 via the pressure testing pipe 35 for pressure testing. The pressure gauge 314 displays the pressure reading. To prevent the pressure testing pipe 35 from colliding with the fire extinguisher... A loose connection occurred at the connection of the tank body 38. Before pressure testing, the motor 310 was started. The motor 310 is a three-phase asynchronous motor that can rotate in both directions. When the motor 310 rotates forward, it drives the bidirectional lead screw 311 to rotate forward. This rotation causes the two threaded sleeves 312 to move relative to each other on the lead screw 311. Limited by the limit rod 315, the threaded sleeves 312 can only move laterally. This relative movement of the two threaded sleeves 312 causes the two clamping plates 313 to move relative to each other. The two clamping plates 313 are respectively positioned... On the side of the connection between the pressure testing tube 35 and the fire extinguisher tank 38, the connection point is located on the movement trajectory of the clamping plate 313. When the clamping plate 313 moves relative to the pressure testing tube 35, it clamps the connection point between the pressure testing tube 35 and the fire extinguisher tank 38 to prevent loosening. The clamping plate 313 is designed in an arc shape to better fit the connection point. When clamping is no longer needed, the motor 310 reverses, driving the bidirectional lead screw 311 to reverse, causing the two threaded sleeves 312 and the two clamping plates 313 to move in opposite directions, thus... The clamping plate 313 is located away from the pressure measuring tube 35 and the fire extinguisher tank 38, reducing labor costs and labor intensity. The electric telescopic rod 36 automatically raises and lowers the pallet 37, eliminating the need for manual lifting of the fire extinguisher tank 38, thus facilitating loading and unloading and ensuring the accuracy of pressure measurement data. The arc-shaped clamping plate 313 driven by the motor 310 automatically clamps the connection between the pressure measuring tube 35 and the tank, making it flexible and adaptable. The motor 310 can rotate in both directions and can control the opening and closing of the clamping plate 313 to complete the clamping or loosening action, effectively preventing pressure leakage or data deviation caused by loosening.

[0030] like Figure 1-5As shown, an anti-clogging component 4 is provided on the top of the base plate 31. The anti-clogging component 4 includes a squeezing rod 41, one end of which is fixedly connected to the side of the threaded sleeve 312. A support rod 42 is fixedly connected to the side of the vertical rod 39. A rectangular plate 43 is fixedly connected to the top of the support rod 42. A rotating plate 44 is rotatably connected to the inner wall of the rectangular plate 43. A short rod 45 is fixedly connected to the circumference of the rotating plate 44. A striking rod 46 is fixedly connected to the circumference of the rotating plate 44. The striking rod 46 is used to strike the outer wall of the horizontal tube 34 to clear the blockage of the horizontal tube 34 and prevent the horizontal tube 34 from becoming blocked, which would affect the pressure measurement.

[0031] The short rod 45 is located on the displacement trajectory of the extrusion rod 41, and the striking rod 46 is located at the top of the horizontal tube 34. The horizontal tube 34 is located on the displacement trajectory of the striking rod 46. This design is beneficial to directly strike the horizontal tube 34 when the striking rod 46 moves.

[0032] A spring 47 is fixedly connected to the bottom of the rectangular plate 43. The end of the spring 47 away from the rectangular plate 43 is fixedly connected to the top of the striking rod 46. There are two striking rods 46. The design of the spring 47 is conducive to the striking rod 46 automatically returning to its original position when it does not move.

[0033] According to the above structure, when the two threaded sleeves 312 move in opposite directions, one of the threaded sleeves 312 will drive the pressing rod 41 to move in the opposite direction. The short rod 45 is located on the movement trajectory of the pressing rod 41 following the reverse movement of the threaded sleeve 312. When the pressing rod 41 moves in the opposite direction, it will press the short rod 45 downward. The downward movement of the short rod 45 will drive the rotating plate 44 to rotate clockwise. The clockwise rotation of the rotating plate 44 will drive the striking rod 46 to rotate clockwise. The striking rod 46 is located at the top of the horizontal tube 34. When the striking rod 46 rotates clockwise, it will rotate from top to bottom. The horizontal tube 34 is located on the movement trajectory of the striking rod 46. Therefore, when the striking rod 46 rotates clockwise downward, it will strike the horizontal tube 34. The outer wall of 4 causes the horizontal tube 34 to vibrate, clearing the horizontal tube 34 and preventing blockages that could affect pressure measurement. When the short rod 45 is not compressed, the spring 47 will drive the rotating plate 44 and the striking rod 46 to automatically return to their original positions for easy reuse. The system automatically clears the pipeline. When the clamping plate 313 is loosened, the mechanical linkage structure drives the striking rod 46 to vibrate the horizontal tube 34, effectively preventing pipeline blockages from affecting pressure measurement accuracy. The clearing function can be achieved without additional operation. The reverse movement of the threaded sleeve 312 triggers the clearing mechanism, saving additional manpower and time costs. It has an automatic reset capability. The spring 47 structure ensures that the striking component returns to its original position after clearing, ensuring the stability and convenience of the device for repeated use.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A fire extinguisher pressure testing device, characterized in that: Includes a base (1), an electric pressure pump (2) is provided on the top of the base (1), and a pressure testing and anti-loosening component (3) is provided on the side of the base (1); The pressure testing and anti-loosening assembly (3) includes a base plate (31), the side of which is fixedly connected to the side of the base (1), a support frame (32) is fixedly connected to the top of the base plate (31), an electric telescopic rod (36) is fixedly connected to the top of the base plate (31), a support plate (37) is fixedly connected to one end of the electric telescopic rod (36), a fire extinguisher tank (38) is provided on the top of the support plate (37), an output pipe (33) passes through the side of the electric pressure testing pump (2), a horizontal pipe (34) is fixedly connected to the side of the support frame (32), the end of the output pipe (33) away from the electric pressure testing pump (2) passes through one end of the horizontal pipe (34), and a pressure testing pipe (35) passes through the outer wall of the horizontal pipe (34). The end of the pressure measuring tube (35) away from the horizontal tube (34) passes through the top of the fire extinguisher tank (38). A vertical rod (39) is fixedly connected to the top of the base plate (31). A motor (310) is fixedly connected to the side of the vertical rod (39). A double-acting screw (311) is fixedly connected to the output shaft of the motor (310). A threaded sleeve (312) is threaded on the circumferential surface of the double-acting screw (311). A limit rod (315) is fixedly connected to the side of the motor (310). The end of the limit rod (315) away from the motor (310) passes through the side of the threaded sleeve (312). A clamping plate (313) is fixedly connected to the side of the threaded sleeve (312). A pressure gauge (314) is installed on the top of the electric pressure measuring pump (2).

2. The fire extinguisher pressure measuring device according to claim 1, characterized in that: Two threaded sleeves (312) and clamps (313) are provided and are symmetrical to each other along the vertical central axis of the bidirectional screw (311). The clamps (313) are located on the side of the pressure measuring tube (35) and the fire extinguisher tank (38).

3. The fire extinguisher pressure testing device according to claim 2, characterized in that: Two pallets (37) and two electric telescopic rods (36) are provided and are arranged in a linear array on the top of the base plate (31). Two sets of bidirectional lead screws (311), threaded sleeves (312) and clamps (313) are provided.

4. The fire extinguisher pressure testing device according to claim 3, characterized in that: A soft pad is fixedly connected to the inner wall of the clamp (313), a valve (5) is provided at one end of the horizontal tube (34), two pressure measuring tubes (35) are provided, and several pressure gauges (314) are provided.

5. A fire extinguisher pressure testing device according to claim 4, characterized in that: The top of the base plate (31) is provided with an anti-clogging component (4), which includes a pressing rod (41). One end of the pressing rod (41) is fixedly connected to the side of the threaded sleeve (312). A support rod (42) is fixedly connected to the side of the vertical rod (39). A rectangular plate (43) is fixedly connected to the top of the support rod (42). A rotating plate (44) is rotatably connected to the inner wall of the rectangular plate (43). A short rod (45) is fixedly connected to the circumferential surface of the rotating plate (44). A striking rod (46) is fixedly connected to the circumferential surface of the rotating plate (44).

6. A fire extinguisher pressure testing device according to claim 5, characterized in that: The short rod (45) is located on the displacement trajectory of the extrusion rod (41), the striking rod (46) is located at the top of the horizontal tube (34), and the horizontal tube (34) is located on the displacement trajectory of the striking rod (46).

7. A fire extinguisher pressure testing device according to claim 6, characterized in that: A spring (47) is fixedly connected to the bottom of the rectangular plate (43). The end of the spring (47) away from the rectangular plate (43) is fixedly connected to the top of the striking rod (46). There are two striking rods (46).

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