An intelligent pressure sensing gun stop display system for fire trucks

Abstract

The present application relates to the technical field of fire fighting and extinguishing, and specifically discloses a fire truck intelligent pressure sensing stop gun display system, which includes a fire pump, a fire hose and a fire hose gun. The water outlet section of the fire pump is equipped with a stop mechanism for detecting water pressure and controlling the fire pump to stop according to the water pressure. When the fire is extinguished, a firefighter first turns off the fire hose. At this time, the fire pump is still in working state, and the water pressure in the water outlet section of the fire pump and the fire hose will increase. The stop mechanism will monitor the water pressure in real time. When the water pressure exceeds the set value, the stop mechanism controls the fire pump to stop working, and the fire pump can be automatically shut down, which reduces the possibility of damage to the fire pump and the fire hose due to improper coordination during the manual shutdown process.

Description

Technical Field

[0001] The present application relates to the field of fire fighting and fire extinguishing technology, and in particular to an intelligent pressure sensing gun stop display system for fire trucks. Background Art

[0002] A fire truck, also known as a fire truck, is a vehicle designed and manufactured according to needs to be suitable for firefighters to ride, equipped with various fire-fighting equipment or fire extinguishing agents, and used by fire forces for fire extinguishing, auxiliary fire extinguishing or fire rescue.

[0003] The most common devices on fire trucks used to extinguish large fires include fire pumps, fire hoses, and fire hose guns. One end of the fire hose is connected to the water outlet of the fire pump, and the other end is connected to the fire hose gun. When it is necessary to extinguish a fire at the scene, firefighters turn on the fire pump, and water flows from the fire pump through the fire hose to the fire hose gun, and finally is sprayed out by the fire hose gun to extinguish the fire.

[0004] When a fire truck is extinguishing a fire, the fire pump works at full load. After the fire is under control and the terminal firefighting personnel turn off the fire hose, the fire pump is still in operation, which will cause the water outlet section of the fire pump to be subjected to huge water pressure. In order to avoid damage to the equipment, a firefighter is usually reserved on the fire truck operating table. After the fire hose is turned off, the firefighter manually stops the fire pump. This method occupies a firefighter, and there is a hidden danger that improper coordination may cause the water outlet section of the fire pump to be over-pressured and damaged, so it needs to be improved. Summary of the invention

[0005] In order to reduce the possibility of damage to the water outlet section of the fire pump due to improper coordination during the shutdown process, the present application provides an intelligent pressure-sensing gun stop display system for fire trucks.

[0006] The application provides an intelligent pressure sensing gun stop display system for fire trucks, which adopts the following technical solutions:

[0007] The invention discloses an intelligent pressure sensing gun stop display system for fire trucks, comprising a fire pump, a fire hose and a fire gun. The water outlet section of the fire pump is provided with a stop mechanism for detecting water pressure and controlling the fire pump to stop according to the water pressure.

[0008] By adopting the above technical solution, when the fire is extinguished and the firefighters close the fire hose, the water cannot be discharged from the fire hose, so the water pressure in the water outlet section of the fire pump and the fire hose will increase, and the shutdown mechanism will monitor the water pressure in real time. When the water pressure exceeds the set value, the shutdown mechanism controls the fire pump to stop working, thereby automatically shutting down the fire pump, reducing the possibility of damage to the fire pump and fire hose due to improper coordination during the manual shutdown process.

[0009] Optionally, the shutdown mechanism includes a pressure sensor and a control panel. The pressure sensor is arranged at the water outlet section of the fire water pump. The control panel is electrically connected to the pressure sensor and the fire water pump, respectively. When the pressure sensor detects that the water pressure exceeds a set value, the control panel controls the fire water pump to shut down.

[0010] By adopting the above technical solution, the pressure sensor can monitor the water pressure of the water outlet section of the fire water pump in real time and transmit the water pressure signal to the control panel. The control panel displays the water pressure signal. When the water pressure signal exceeds the set value, the control panel controls the fire water pump to shut down.

[0011] Optionally, a pressure relief mechanism for pressure relief is installed between the water inlet section and the water outlet section of the fire water pump, and the pressure relief mechanism is electrically connected to the control panel.

[0012] By adopting the above technical solution, the pressure relief mechanism can relieve the water pressure in the water outlet section of the fire water pump after shutdown, so that the water pressure in the fire water pump and the fire hose remains normal, reducing the possibility of damage to the fire water pump and the fire hose.

[0013] Optionally, the pressure relief mechanism includes a pressure relief pipe and a pressure switch, one end of the pressure relief pipe is connected to the water inlet section of the fire water pump, and the other end is connected to the water outlet section of the fire water pump, and the pressure switch is arranged at the end of the pressure relief pipe away from the water inlet section of the fire water pump, the pressure switch is electrically connected to the control panel, and the pressure switch is used to control the flow of water in the water outlet section of the fire water pump and the water in the water inlet section of the fire water pump through the pressure relief pipe.

[0014] By adopting the above technical solution, when the control panel controls the fire water pump to shut down, the control panel controls the pressure switch to open, and the water in the water outlet section of the fire water pump flows back from the pressure relief pipe to the water inlet section of the fire water pump, thereby reducing the water pressure in the water outlet section of the fire water pump and reducing the possibility of damage to the fire water pump and the fire hose.

[0015] Optionally, the fire-fighting water gun includes a water gun housing and a trigger, the trigger is slidably mounted on the water gun housing, a water channel through which water flows is opened in the water gun housing, and the water gun housing is also provided with: an opening and closing mechanism for opening and closing the water channel, a buffer mechanism for reducing the recoil force generated when the water channel is opened, and a reset mechanism for driving the buffer mechanism to reset; the water gun housing is also provided with a linkage mechanism for linking the opening and closing mechanism and the buffer mechanism.

[0016] By adopting the above technical solution, the opening and closing mechanism can open and close the water channel, so that the trigger can conveniently control the water discharge of the fire hose. Since the water pressure of the fire hose is relatively high when discharging water, a large recoil force is often generated at the moment of opening. This recoil force makes it difficult for firefighters to hold the gun stably, especially for firefighters with less firefighting experience. This recoil force may affect the firefighting effect, and the buffer mechanism can generate a buffering force opposite to the recoil force when the fire hose is opened, so as to reduce the impact of the recoil force on the firefighter's grip, so that the firefighter can hold the gun more stably when extinguishing the fire. The linkage mechanism can link the action of the firefighter pulling the trigger to waterproof and the buffer mechanism's buffering action, so that while releasing water, the buffer mechanism buffers and reduces the generated recoil force, and the reset mechanism can reset the buffer mechanism after buffering, so that the fire hose can repeat the buffering operation.

[0017] Optionally, the opening and closing mechanism includes a push block and an opening and closing plate, the push block is slidably mounted in the water gun housing, one end of the push block is fixedly connected to the trigger, and the other end is provided with a wedge-shaped inclined surface;

[0018] The opening and closing plate is slidably installed in the water gun housing, and the sliding direction intersects with the extension direction of the waterway. An opening and closing port is provided on the opening and closing plate. The wedge-shaped inclined surface of the push block slidably abuts against one side edge of the opening and closing plate. When the trigger is pressed, the wedge-shaped inclined surface of the push block pushes the opening and closing plate to move, so that the opening and closing port is connected to the waterway.

[0019] By adopting the above technical solution, when the firefighter pulls the trigger of the fire hose, the trigger pushes the push block to move, and the push block pushes the opening and closing plate to move toward the top of the hose housing, so that the opening and closing port on the opening and closing plate connects the water channel of the hose housing, thereby allowing the fire hose to release water.

[0020] Optionally, the buffer mechanism includes a multi-stage sleeve, a buffer ball and an elastic member, the multi-stage sleeve is located at the top of the water gun housing and one end is fixedly connected to the water gun housing, the telescopic direction of the multi-stage sleeve is consistent with the length direction of the water gun housing, the buffer ball is located at one end close to the water outlet end of the water gun housing and is fixedly installed on the other end of the multi-stage sleeve, the elastic member is sleeved and installed outside the multi-stage sleeve, and the multi-stage sleeve can be telescopic under the action of the elastic member;

[0021] A plug hole is provided on the top of the water gun housing, and an elastic telescopic rod is fixedly provided on the side wall of the multi-stage sleeve close to the buffer ball. When the elastic member is in a contracted state, the elastic telescopic rod is inserted into the plug hole;

[0022] The opening and closing plate can drive the elastic telescopic rod to move out of the insertion hole through the linkage mechanism.

[0023] By adopting the above technical solution, when the opening and closing plate moves toward the top of the water gun housing, the opening and closing plate drives the end of the elastic telescopic rod to move out of the socket through the linkage mechanism. At this time, under the action of the elastic member, the multi-stage sleeve extends, and the multi-stage sleeve drives the buffer ball to move in the opposite direction of the recoil, thereby greatly reducing the recoil, reducing the impact of the recoil on the firefighters when using the fire hose, and improving the stability when holding the fire hose.

[0024] Optionally, the linkage mechanism includes a push rod and a first reset member disposed in the socket, the push rod being slidably mounted in the socket, one end of the first reset member being fixedly connected to an inner peripheral wall of a water gun housing corresponding to the socket, and the other end being fixedly connected to the push rod;

[0025] One end of the push rod slides away from the elastic telescopic rod and extends out of the insertion hole under the action of the first reset member, and the side of the opening and closing plate away from the push block is arranged in a wedge-shaped inclined surface;

[0026] When the opening and closing plate slides toward the top of the water gun housing, the wedge-shaped inclined surface of the opening and closing plate drives the push rod to push the elastic telescopic rod out of the insertion hole.

[0027] By adopting the above technical solution, when the opening and closing plate moves toward the top of the water gun housing, the wedge-shaped inclined surface at the end of the opening and closing plate pushes the push rod extending out of the socket into the socket, so that the other end of the push rod pushes the elastic telescopic rod to extend out of the socket, thereby completing the unlocking of the multi-stage sleeve extension.

[0028] Optionally, the reset mechanism includes a connecting rod and a push plate, one end of the connecting rod is fixedly connected to the multi-stage sleeve, and the other end is fixedly connected to the push plate, and the push plate is located on the top of the water gun housing.

[0029] By adopting the above technical solution, when the buffer mechanism needs to be reset, the push plate is pulled, and the push plate drives the multi-stage sleeve to contract through the connecting rod, so that the elastic member returns to the compressed state. At this time, the end of the elastic telescopic rod slides to a position opposite to the socket, and the end of the elastic telescopic rod is reinserted into the socket to achieve locking of the multi-stage sleeve.

[0030] Optionally, a second reset member and a third reset member are further provided in the water gun housing, the second reset member is used to drive the trigger to move in a direction away from the opening and closing plate, and the third reset member is used to drive the opening and closing plate to move in a direction away from the top of the water gun housing.

[0031] By adopting the above technical solution, the second reset member and the third reset member can reset the trigger and the opening and closing plate respectively, so that when the firefighter does not press the trigger, the opening and closing plate is automatically reset, and the opening and closing port is no longer connected to the water channel in the water gun housing. At this time, the fire water gun is automatically closed, so that the firefighter does not need to manually close the fire water gun, and the operation is simpler.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. When the fire is extinguished and the firefighters close the fire hose, the water cannot be discharged from the fire hose, so the water pressure in the water outlet section of the fire pump and the fire hose will increase. The shutdown mechanism will monitor the water pressure in real time. When the water pressure exceeds the set value, the shutdown mechanism will control the fire pump to stop working, thus completing the automatic shutdown of the fire pump, reducing the possibility of damage to the fire pump and fire hose due to improper coordination during the manual shutdown process;

[0034] 2. The opening and closing mechanism can open and close the waterway, so that the trigger can conveniently control the water discharge of the fire hose.

[0035] 3. Due to the high water pressure when the fire hose is discharged, a large recoil is often generated at the moment of opening. This recoil makes it difficult for firefighters to hold the hose stably, especially for firefighters with less firefighting experience. This recoil may affect the firefighting effect. The buffer mechanism can generate a buffering force opposite to the recoil when the fire hose is opened, thereby reducing the impact of the recoil on the firefighter's grip, allowing the firefighter to hold the hose more stably when extinguishing the fire.

[0036] 4. The linkage mechanism can link the action of the firefighter pulling the trigger to release water and the buffering action of the buffer mechanism to each other, so that while releasing water, the buffer mechanism can buffer and reduce the generated recoil, and the reset mechanism can reset the buffer mechanism after buffering, so that the fire hose can repeat the buffering operation;

[0037] 5. The second reset member and the third reset member can reset the trigger and the opening and closing plate respectively, so that when the firefighter does not press the trigger, the opening and closing plate will automatically reset, and the opening and closing port will no longer be connected to the water channel in the water gun housing. At this time, the fire hose will automatically close, so that the firefighter does not need to manually close the fire hose, and the operation is easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of an intelligent pressure-sensing gun stop display system for a fire truck in an embodiment of the present application.

[0039] Figure 2 yes Figure 1 Schematic diagram of the overall structure of the fire water pump from the first perspective.

[0040] Figure 3 yes Figure 1 Schematic diagram of the overall structure of the fire water pump from the second perspective.

[0041] Figure 4 yes Figure 1 Schematic diagram of the structure of the water gun shell.

[0042] Figure 5 yes Figure 4 Cross-sectional view of the water gun housing.

[0043] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0044] Figure 7 yes Figure 4 A schematic diagram of the structure of the water gun housing from another perspective.

[0045] Figure numerals: 1. fire pump; 11. plunger pump body; 12. drive motor; 13. motor controller; 14. 48V power battery pack; 15. pressure adjustment handle; 2. fire hose; 3. fire hose gun; 31. gun housing; 311. water channel; 312. second reset member; 32. trigger; 4. shutdown mechanism; 41. control panel; 5. pressure relief mechanism; 51. pressure relief pipe; 52. pressure switch; 6. opening and closing mechanism; 61. push block; 62. opening and closing plate; 621. opening and closing port; 7. buffer mechanism; 71. multi-stage sleeve; 711. elastic telescopic rod; 72. buffer ball; 73. elastic member; 8. linkage mechanism; 9. reset mechanism; 91. connecting rod; 92. push plate. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-7 , further details of this application are given.

[0047] The embodiment of the present application discloses an intelligent pressure-sensing gun stop display system for fire trucks.

[0048] Reference Figure 1 , Figure 2 and Figure 3 A fire truck intelligent pressure sensing gun stop display system includes a fire pump 1, a fire hose 2 and a fire gun 3. The water outlet section of the fire pump 1 is equipped with a shutdown mechanism 4 for detecting water pressure and controlling the shutdown of the fire pump 1 according to the water pressure, and a pressure relief mechanism 5 for pressure relief.

[0049] Reference Figure 1 , Figure 2 and Figure 3The fire water pump 1 adopts a plunger pump, including a plunger pump body 11, a drive motor 12 and a motor controller 13. The plunger pump body 11 and the drive motor 12 are connected to a 48V power battery pack 14 for power supply. The shutdown mechanism 4 includes a pressure sensor and a control panel 41. The pressure sensor is arranged at the water outlet section of the fire water pump 1 to detect the water pressure of the water outlet section of the fire water pump 1. The control panel 41 adopts an intelligent control panel 41, and the control panel 41 is electrically connected to the pressure sensor, the fire water pump 1 and the pressure relief mechanism 5 respectively.

[0050] The pressure sensor can monitor and sense the water pressure of the water outlet section of the plunger pump body 11 in real time, and feed back the monitored water pressure signal to the control screen 41, which analyzes and processes the signal and displays the processed pressure value on the control screen 41. When the pressure sensor senses that the pressure of the water outlet section of the plunger pump body 11 exceeds the set value, the control screen 41 transmits the signal to the motor controller 13, and the motor controller 13 controls the drive motor 12 to stop, so that the plunger pump stops working.

[0051] When the fire hose 2 between the fire pump 1 and the fire hose 3 is stepped on by someone during use, this process will also increase the pressure in the water outlet section of the fire pump 1. However, this process will not last too long. In order to reduce the interference of such situations on normal water pumping, a time monitoring module can be further integrated in the control panel 41. The time monitoring module and the pressure sensor are both electrically connected to the control panel 41. The time monitoring module can record the time when the water pressure in the water outlet section of the fire pump 1 exceeds the set value, and transmit the time signal to the control panel 41.

[0052] When the water pressure at the outlet section of the fire pump 1 exceeds the set value and lasts for a certain period of time, the control panel 41 will control the drive motor 12 to stop and shut down the plunger pump. The certain period of time here can be set to 5s, 10s, etc. The specific time can be determined according to the specific pressure resistance of the fire hose 2 and the fire pump 1.

[0053] In order to prevent the pressure from continuing to rise, after the driving motor 12 and the plunger pump body 11 stop working, the pressure relief mechanism 5 on the water outlet section of the plunger pump body 11 releases the pressure, so that the pressure in the fire water pump 1 and the fire hose 2 is reduced to no more than the set value, thereby ensuring the safety of the fire water pump 1 and the fire hose 2. When the fire water gun 3 is turned on again, the fire pump resumes work.

[0054] Reference Figure 2 and Figure 3The pressure relief mechanism 5 includes a pressure relief pipe 51 and a pressure switch 52. One end of the pressure relief pipe 51 is connected to the water inlet section of the fire water pump 1, and the other end is connected to the water outlet section of the fire water pump 1. The pressure switch 52 is arranged at one end of the pressure relief pipe 51 away from the water inlet section of the fire water pump 1, and is used to control the water in the water outlet section of the fire water pump 1 through the pressure relief pipe 51 and the water in the water inlet section of the fire water pump 1.

[0055] The pressure sensor is integrated in the pressure switch 52. When the pressure sensor detects that the water in the outlet section of the fire water pump 1 exceeds the set value, the control panel 41 processes the received signal and displays it on the control panel 41. At the same time, the pressure switch 52 is controlled to open. At this time, the water in the outlet section of the fire water pump 1 flows back to the water inlet section of the fire water pump 1 through the pressure relief pipe 51, thereby achieving the pressure reduction of the outlet section of the fire water pump 1.

[0056] The fire water pump 1 is also provided with a pressure regulating handle 15, through which the water pressure of the sprayed water can be manually adjusted.

[0057] In the process of using the fire hose 3, in addition to the above-mentioned problems, it was also found that the fire hose 3 would produce a large recoil at the moment of releasing water, which would make it difficult for the user to hold it stably, especially for operators with less use experience. This recoil may affect the fire extinguishing effect, so targeted improvements were made to the fire hose 3.

[0058] Reference Figure 1 , Figure 4 and Figure 5 The fire-fighting water gun 3 includes a water gun housing 31 and a trigger 32. The trigger 32 is slidably mounted on the water gun housing 31. A water channel 311 through which water flows is provided in the water gun housing 31. The water channel 311 in the water gun housing 31 is connected to the fire hose 2. An opening and closing mechanism 6, a buffer mechanism 7, a linkage mechanism 8 and a reset mechanism 9 are also provided in the water gun housing 31.

[0059] The opening and closing mechanism 6 can open and close the waterway 311 when the user pulls the trigger 32. During the operation of the opening and closing mechanism 6, the buffer mechanism 7 can be driven by the linkage mechanism 8 to generate a buffer force opposite to the recoil force. This buffer force can greatly reduce the recoil force, thereby greatly reducing the recoil force generated when the fire hose 3 is opened.

[0060] After one fire extinguishing operation is completed, the buffer mechanism 7 can be reset through the reset mechanism 9 so that the buffer mechanism 7 can be reused.

[0061] The following is a detailed description of each institution:

[0062] Reference Figure 4 and Figure 5The opening and closing mechanism 6 includes a push block 61 and an opening and closing plate 62. The push block 61 is slidably installed in the water gun housing 31, and one end of the push block 61 is fixedly connected to the trigger 32, and the other end is provided with a wedge-shaped inclined surface. A second reset member 312 and a third reset member are provided in the water gun housing 31. The second reset member 312 is a reset spring. The second reset member 312 can drive the trigger 32 to move away from the opening and closing plate 62, so that when the trigger 32 is not pulled, the trigger 32 is always in the original position, and the third reset member is used to drive the opening and closing plate 62 to move away from the top of the water gun housing 31, so that the buffer mechanism 7 is stable in the initial state.

[0063] The opening and closing plate 62 is slidably installed in the water gun housing 31, and the sliding direction intersects with the extension direction of the water channel 311. An opening and closing port 621 for opening and closing the water channel 311 is provided on the opening and closing plate 62. The wedge-shaped inclined surface of the push block 61 slides against an edge of one side of the opening and closing plate 62. When the trigger 32 is pressed, the wedge-shaped inclined surface of the push block 61 pushes the opening and closing plate 62 toward the top of the water gun housing 31, so that the opening and closing port 621 is connected to the water channel 311.

[0064] Reference Figure 5 and Figure 6 , the buffer mechanism 7 is provided with two groups, each group of the buffer mechanism 7 includes a multi-stage sleeve 71, a buffer ball 72 and an elastic member 73, the elastic member 73 is a spring, the multi-stage sleeve 71 is provided with two stages, the multi-stage sleeve 71 can be extended and contracted, the multi-stage sleeve 71 is located at the top of the water gun housing 31 and one end is fixedly connected to the water gun housing 31, the extension direction of the multi-stage sleeve 71 is consistent with the length direction of the water gun housing 31, the buffer ball 72 is located at one end away from the water outlet end of the water gun housing 31 and is fixedly installed at the other end of the multi-stage sleeve 71, the elastic member 73 is sleeved and installed on the multi-stage sleeve 71, and the multi-stage sleeve 71 can realize elastic extension and contraction under the action of the elastic member 73;

[0065] A socket is provided at the top of the water gun housing 31, and an elastic telescopic rod 711 is fixedly provided on the side wall of the multi-stage sleeve 71 away from the buffer ball 72. The elastic telescopic rod 711 adopts a telescopic rod body and a spring to achieve elastic expansion and contraction. When the elastic member 73 is in a contracted state, the elastic telescopic rod 711 is elastically inserted into the socket.

[0066] When the opening and closing plate 62 moves toward the top of the water gun housing 31, the opening and closing plate 62 drives the end of the elastic telescopic rod 711 to move out of the socket through the linkage mechanism 8. At this time, under the action of the elastic member 73, the multi-stage sleeve 71 extends, and the multi-stage sleeve 71 drives the buffer ball 72 to move in the same direction as the recoil. At this time, the elastic member 73 is stretched and generates a forward pulling force to offset the recoil, thereby reducing the impact of the recoil on the firefighter when using the fire hose 3 and improving the stability when holding the fire hose 3.

[0067] Reference Figure 6 and Figure 7 The linkage mechanism 8 includes a push rod and a first reset member arranged in the socket, the push rod is slidably installed in the socket, one end of the first reset member is fixedly connected to the inner wall of the water gun housing 31 corresponding to the socket, and the other end is fixedly connected to the push rod;

[0068] Under the action of the first reset member, one end of the push rod slides away from the elastic telescopic rod 711 and extends out of the insertion hole, and the end of the opening and closing plate 62 is also provided with a wedge-shaped inclined surface. When the opening and closing plate 62 slides toward the top of the water gun housing 31, the wedge-shaped inclined surface of the opening and closing plate 62 drives the push rod to push the elastic telescopic rod 711 out of the insertion hole.

[0069] Reference Figure 6 and Figure 7 The reset mechanism 9 includes a connecting rod 91 and a push plate 92. One end of the connecting rod 91 is fixedly connected to the multi-stage sleeve 71, and the other end is fixedly connected to the push plate 92. The push plate 92 is located at the top of the water gun housing 31. When the buffer mechanism 7 needs to be reset, the push plate 92 is pulled, and the push plate 92 drives the multi-stage sleeve 71 to contract through the connecting rod 91, so that the elastic member 73 returns to the compressed state. At this time, the end of the elastic telescopic rod 711 slides to a position facing the socket, and the end of the elastic telescopic rod 711 is reinserted into the socket to achieve locking of the multi-stage sleeve 71.

[0070] The implementation principle of an intelligent pressure-sensing gun stop display system for a fire truck in an embodiment of the present application is as follows: when the fire is extinguished, a firefighter first turns off the fire hose 3. At this time, the fire pump 1 is still in working condition, and the water pressure in the water outlet section of the fire pump 1 and the fire hose 2 will increase, while the shutdown mechanism 4 will monitor the water pressure in real time. When the water pressure exceeds the set value, the shutdown mechanism 4 controls the fire pump 1 to stop working, thereby automatically shutting down the fire pump 1, reducing the possibility of damage to the fire pump 1 and the fire hose 2 due to improper coordination during the manual shutdown process.

[0071] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intelligent pressure sensing gun stop display system for fire trucks, characterized by: It comprises a fire water pump (1), a fire hose (2) and a fire water gun (3); the water outlet section of the fire water pump (1) is provided with a shutdown mechanism (4) for detecting water pressure and controlling the shutdown of the fire water pump (1) according to the water pressure; The fire-fighting water gun (3) comprises a water gun housing (31) and a trigger (32), wherein the trigger (32) is slidably mounted on the water gun housing (31), wherein a water channel (311) through which water flows is provided in the water gun housing (31), wherein the water gun housing (31) is further provided with: an opening and closing mechanism (6) for opening and closing the water channel (311) and a buffer mechanism (7) for reducing the recoil force generated when the water channel (311) is opened, and wherein the water gun housing (31) is further provided with a linkage mechanism (8) for linking the opening and closing mechanism (6) and the buffer mechanism (7); The opening and closing mechanism (6) comprises a push block (61) and an opening and closing plate (62); the push block (61) is slidably mounted in the water gun housing (31); one end of the push block (61) is fixedly connected to the trigger (32); and the other end is provided with a wedge-shaped inclined surface; The opening and closing plate (62) is slidably installed in the water gun housing (31), and the sliding direction intersects with the extension direction of the water channel (311); an opening and closing opening (621) is provided on the opening and closing plate (62); the wedge-shaped inclined surface of the push block (61) is in sliding contact with a side edge of the opening and closing plate (62); when the trigger (32) is pressed, the wedge-shaped inclined surface of the push block (61) pushes the opening and closing plate (62) to move, so that the opening and closing opening (621) is connected to the water channel (311); The buffer mechanism (7) comprises a multi-stage sleeve (71), a buffer ball (72) and an elastic member (73); the multi-stage sleeve (71) is located at the top of the water gun housing (31) and one end of the multi-stage sleeve is fixedly connected to the water gun housing (31); the extension direction of the multi-stage sleeve (71) is consistent with the length direction of the water gun housing (31); the buffer ball (72) is located at one end close to the water outlet end of the water gun housing (31) and is fixedly mounted on the other end of the multi-stage sleeve (71); the elastic member (73) is sleeved and mounted outside the multi-stage sleeve (71); and the multi-stage sleeve (71) can be extended and retracted under the action of the elastic member (73); The top of the water gun housing (31) is provided with an insertion hole, and an elastic telescopic rod (711) is fixedly provided on the side wall of the multi-stage sleeve (71) close to the buffer ball (72); when the elastic member (73) is in a contracted state, the elastic telescopic rod (711) is inserted into the insertion hole; The opening and closing plate (62) can drive the elastic telescopic rod (711) to move out of the insertion hole through the linkage mechanism (8).

2. According to claim 1, the intelligent pressure sensing gun stop display system for fire trucks is characterized by: The shutdown mechanism (4) comprises a pressure sensor and a control panel (41). The pressure sensor is arranged at the water outlet section of the fire water pump (1). The control panel (41) is electrically connected to the pressure sensor and the fire water pump (1) respectively. When the pressure sensor detects that the water pressure exceeds a set value, the control panel (41) controls the fire water pump (1) to shut down.

3. According to claim 2, the intelligent pressure sensing gun stop display system for fire trucks is characterized by: A pressure relief mechanism (5) for pressure relief is also installed between the water inlet section and the water outlet section of the fire water pump (1), and the pressure relief mechanism (5) is electrically connected to the control panel (41).

4. The intelligent pressure sensing gun stop display system for fire trucks according to claim 3 is characterized by: The pressure relief mechanism (5) comprises a pressure relief pipe (51) and a pressure switch (52). One end of the pressure relief pipe (51) is connected to the water inlet section of the fire water pump (1), and the other end is connected to the water outlet section of the fire water pump (1). The pressure switch (52) is arranged at an end of the pressure relief pipe (51) away from the water inlet section of the fire water pump (1). The pressure switch (52) is electrically connected to the control panel (41), and the pressure switch (52) is used to control the connection and disconnection of water in the water outlet section of the fire water pump (1) and the water in the water inlet section of the fire water pump (1) through the pressure relief pipe (51).

5. According to claim 1, the intelligent pressure sensing gun stop display system for fire trucks is characterized by: The water gun housing (31) is also provided with a reset mechanism (9) for driving the buffer mechanism (7) to reset.

6. The intelligent pressure sensing gun stop display system for fire trucks according to claim 1 is characterized by: The linkage mechanism (8) comprises a push rod and a first reset member arranged in the insertion hole, the push rod being slidably mounted in the insertion hole, one end of the first reset member being fixedly connected to the inner peripheral wall of the water gun housing (31) corresponding to the insertion hole, and the other end of the first reset member being fixedly connected to the push rod; Under the action of the first reset member, one end of the push rod slides in a direction away from the elastic telescopic rod (711) and extends out of the insertion hole, and a side of the opening and closing plate (62) away from the push block (61) is provided with a wedge-shaped inclined surface; When the opening and closing plate (62) slides toward the top of the water gun housing (31), the wedge-shaped inclined surface of the opening and closing plate (62) drives the push rod to push the elastic telescopic rod (711) out of the insertion hole.

7. The intelligent pressure sensing gun stop display system for fire trucks according to claim 5 is characterized by: The reset mechanism (9) comprises a connecting rod (91) and a push plate (92); one end of the connecting rod (91) is fixedly connected to the multi-stage sleeve (71), and the other end is fixedly connected to the push plate (92); and the push plate (92) is located on the top of the water gun housing (31).

8. The intelligent pressure sensing gun stop display system for fire trucks according to claim 1 is characterized by: A second reset member (312) and a third reset member are also provided in the water gun housing (31); the second reset member (312) is used to drive the trigger (32) to move in a direction away from the opening and closing plate (62); and the third reset member is used to drive the opening and closing plate (62) to move in a direction away from the top of the water gun housing (31).

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