Throttling cut-off device for monitoring fire-fighting pipeline

Abstract

The invention relates to the technical field of fire-fighting pipeline monitoring, in particular to a throttling cut-off device for monitoring a fire-fighting pipeline, which comprises a shell, a water inlet end, a water outlet end and a turbine, the water outlet device further comprises a vertical shaft, a flashboard supporting frame, flashboards, first bevel gears, a shaft pipe, a second bevel gear, a first mounting plate, an upper shell and a monitoring assembly, the lower end of the vertical shaft is connected with the middle of the turbine, the upper shell is mounted on the shell, the flashboard supporting frame and the multiple flashboards are mounted at the water outlet end, and the multiple first bevel gears are concentrically mounted on rotating shafts of the multiple flashboards correspondingly; the shaft tube rotatably sleeves the outer side of the vertical shaft, a bevel gear II is concentrically mounted at the lower end of the shaft tube, the bevel gear II is meshed with a plurality of bevel gears I, a mounting plate I is mounted at the lower part of the upper shell, a driving assembly of the shaft tube is mounted on the mounting plate I, and a monitoring assembly of the vertical shaft is mounted at the upper part of the upper shell; the flow velocity and flow of fire-fighting water in a fire-fighting pipeline can be monitored, flow adjustment and cut-off are carried out on the fire-fighting water according to the flow velocity, and the practicability is good.

Description

Technical Field

[0001] The invention relates to the technical field of fire protection pipeline monitoring, and in particular to a throttling and cutting device for monitoring fire protection pipelines. Background Art

[0002] The throttling and cutting device for monitoring the fire-fighting pipeline plays a vital role in the fire-fighting system. This type of device is mainly used to control the flow, pressure and flow direction of the fluid to ensure that the fire-fighting system can respond quickly and effectively in an emergency. The Chinese invention patent with the prior art publication number CN107975679B proposes a fire hydrant monitoring system, a water pipeline monitoring system and a water pipeline monitoring method. The fire hydrant monitoring system receives the real-time water pressure data output by the water pressure sensor and the flow rate monitoring signal output by the reed switch through the control module. When the turbine rotates, it indicates that the water in the fire hydrant is flowing and the flow rate exceeds the threshold. If the fire hydrant has no fire-fighting task at present, there is a problem of water leakage or stealing water from the fire hydrant. If the flow rate is small, it can be judged that the fire hydrant has a water leakage problem, and when the flow rate is large, there is a problem of stealing or leaking water. By characterizing these two situations as a water leakage report and sending relevant reports through the wireless transmission module, the monitoring center can monitor the working status of each fire hydrant, so that the fire hydrant can be inspected and repaired in time to ensure the safety of subsequent fire-fighting use.

[0003] However, the above-mentioned existing technology effect pipeline monitoring system only plays a monitoring role, and cannot throttle or cut off the fire water flow and water pressure in the pipeline, which has great limitations. Therefore, it will be practical to propose a throttling and cutting device for monitoring fire pipelines that can adjust the flow and cut off based on the existing fire pipeline monitoring system. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a throttling and cutting device for monitoring fire-fighting pipes, which can monitor the flow rate and flow of fire-fighting water in fire-fighting pipes and adjust and cut off the flow of fire-fighting water according to the flow rate, and has good practicality.

[0005] A throttling and cutting device for monitoring a fire-fighting pipeline of the present invention comprises a shell, a water inlet, a water outlet and a turbine, wherein the water inlet is mounted on the upper part of the shell, the water outlet is mounted on the lower part of the shell, the water inlet, the shell and the water outlet are connected, and the turbine is located inside the water outlet; the device also comprises a vertical shaft, a gate support frame, a gate, a bevel gear 1, a shaft tube, a bevel gear 2, a mounting plate 1, an upper shell and a monitoring assembly, wherein the lower end of the vertical shaft is connected to the middle part of the turbine, the upper shell is mounted on the shell, the gate support frame is mounted on the inner wall of the water outlet, a plurality of gates are rotatably mounted on the gate support frame through a rotating shaft, and the inner ends of the rotating shafts of the plurality of gates are connected to the gate support frame The middle part is rotatably connected, multiple bevel gears are concentrically installed on the inner ends of the rotating shafts of multiple gates respectively, the shaft tube is rotatably sleeved on the outside of the vertical shaft, the lower end of the shaft tube is rotatably connected with the middle part of the gate support frame, the lower end of the shaft tube is concentrically installed with bevel gear 2, the bevel gear 2 is meshed with multiple bevel gears 1, the mounting plate 1 is installed at the lower part of the upper shell body, the upper ends of the shaft tube and the vertical shaft both pass through the mounting plate 1 and extend into the interior of the upper shell body, the mounting plate 1 is installed with a shaft tube driving component, the driving component drives the shaft tube to rotate, the upper part of the upper shell body is installed with a vertical shaft monitoring component, the monitoring component detects the rotation speed of the vertical shaft; the water inlet and outlet are connected to the fire protection pipeline through flanges Then, the driving component drives the shaft tube and bevel gear 2 to rotate, and bevel gear 2 meshes with multiple bevel gears 1 to drive multiple gates to rotate synchronously, so that the multiple gates open the gate support frame, and the fire water is input into the shell through the water inlet end and transported to the downstream of the fire pipeline through the gate support frame and the water outlet end. The fire water flow impacts the turbine, so that the turbine drives the vertical shaft to rotate, and the monitoring component detects the rotation speed of the vertical shaft, thereby detecting the flow rate and flow of the fire water in the water outlet end. When the rotation speed detected by the monitoring component is higher than the threshold, the driving component drives the shaft tube and bevel gear 2 to rotate, so that the inclination angle of the multiple gates decreases, thereby reducing the degree of opening of the gate support frame, thereby And reduce the flow in the water outlet; on the contrary, when the rotation speed detected by the monitoring component is lower than the threshold value, the driving component drives the shaft tube and the bevel gear 2 to rotate in the opposite direction, so that the inclination angle of multiple gates increases, and the degree of opening of the gate support frame increases, thereby increasing the flow in the water outlet; the regulation function of the water flow in the fire-fighting pipeline is realized, so that the fire-fighting water flow remains stable; when the fire-fighting pipeline has no fire-fighting task and the turbine rotates, it means that the fire-fighting pipeline is leaking or has been stolen. At this time, the driving component drives the shaft tube and the bevel gear 2 to rotate, so that the multiple gates rotate synchronously to close the gate support frame, and the fire-fighting pipeline is cut off; it has good practicality.

[0006] Preferably, it also includes a lower flange, an upper flange and multiple bolts. The lower flange is arranged on the upper part of the shell, and the upper flange is arranged on the lower part of the upper shell. The lower flange and the upper flange are screwed and fastened by multiple bolts. The upper flange of the upper shell is aligned with the lower flange of the shell, and the lower flange and the upper flange are screwed and fastened using multiple bolts, so as to install the upper shell on the shell. The technology is mature and reliable, and it is convenient to inspect and repair the monitoring components and drive components in the upper shell.

[0007] Preferably, the gate support frame includes a mounting seat, a sealing ring and a plurality of partitions, the mounting seat is located in the middle of the water outlet end, a transmission chamber is arranged inside the mounting seat, a vertical through hole connected to the transmission chamber is arranged in the middle of the mounting seat, the through hole is for the vertical shaft and the shaft tube to pass through, the sealing ring is installed on the inner wall of the water outlet end, a plurality of partitions are arranged circumferentially between the mounting seat and the sealing ring, the plurality of gates are respectively located between the plurality of partitions, the outer ends of the rotating shafts of the plurality of gates are rotatably connected to the sealing ring, the inner ends of the rotating shafts of the plurality of gates are rotatably connected to the mounting seat, the plurality of bevel gears are located in the transmission chamber, and the lower end of the shaft tube is rotatably mounted in the through hole of the mounting seat; when the plurality of gates are rotated to horizontal, the edges of the plurality of gates are in sealing contact with the inner side walls of the plurality of partitions, the inner side walls of the sealing ring and the outer side walls of the mounting seat, so that the plurality of gates cut off the water outlet end, and when the plurality of gates are rotated to tilt, the fire water flows through the gaps between the plurality of gates and the plurality of partitions, and the fire water flow rate is adjusted by adjusting the size of the inclination angle of the end faces of the plurality of gates and the sealing ring.

[0008] Preferably, the driving assembly includes a worm wheel, a reduction motor and a worm, the worm wheel is concentrically mounted on the upper end outer wall of bevel gear one, the reduction motor is mounted on mounting plate one, the output shaft of the reduction motor is concentrically mounted with the worm, and the worm is meshed with the worm wheel; the output shaft of the reduction motor drives the worm to rotate, the worm engages with the worm wheel to drive the shaft tube and bevel gear two to rotate, so that bevel gear two engages with multiple bevel gears one to drive the gate plates to rotate synchronously, the drive is reliable and stable, the worm and worm wheel are meshed for transmission, thereby achieving a locking effect on multiple gate plates and improving the stability of multiple gate plates.

[0009] Preferably, it also includes a transmission shaft and a handwheel, the lower end of the transmission shaft is transmission-connected to the rotor shaft of the reduction motor, the upper end of the transmission shaft extends above the upper shell, and the handwheel is installed on the upper end of the transmission shaft; the transmission shaft is rotated by the handwheel, so that the transmission shaft drives the rotor of the reduction motor to rotate, and the reduction motor drives the worm to rotate, thereby realizing manual emergency operation.

[0010] Preferably, it also includes a limit ring, an outer sleeve and a push rod, the limit ring is slidably connected to the inner wall of the water outlet end, the limit ring is located above the sealing ring, the outer sleeve is slidably mounted on the outside of the bevel gear one, the lower end of the outer sleeve is connected to the limit ring through a bracket, the fixed end of the push rod is installed on the lower end surface of the mounting plate one, and the lower end of the piston rod of the push rod is connected to the outer sleeve; the extension or shortening of the piston rod of spring one drives the outer sleeve to rise and fall along the bevel gear one, so that the outer sleeve drives the limit ring to rise and fall, thereby adjusting the distance between the limit ring and the sealing ring, so that the pressure sensor limits the maximum opening angle of multiple gate plates, thereby limiting the range of flow regulation.

[0011] Preferably, it also includes a spring 1 and a connecting rod, the reduction motor and the mounting plate 1 are movably arranged, the lower end of the spring 1 is connected to the fixed end of the push rod, the upper end of the spring 1 is connected to the lower end surface of the mounting plate 1, the lower end of the connecting rod is connected to the fixed end of the push rod, and the upper end of the connecting rod passes through the mounting plate 1 and is connected to the reduction motor; when it is necessary to urgently close multiple gates to cut off the fire water in the water outlet, the piston rod of the push rod extends to push the outer sleeve and the limit ring downward. Since the multiple gates are locked, the fixed end of the push rod compresses the spring 1, so that the fixed elevation of the push rod pushes up the reduction motor through the connecting rod, so that the reduction motor drives the worm to rise, the worm is disengaged from the worm wheel, so that the multiple gates are unlocked, and the piston rod of the push rod continues to extend so that the limit ring is pressed tightly on the sealing ring so that the limit ring flattens the multiple gates, thereby causing the multiple gates to urgently close the water outlet and cut off the fire water, which has good practicality.

[0012] Preferably, the monitoring component includes a transverse plate, a magnetic block, a magnetic sensitive unit and a second mounting plate, wherein the second mounting plate is mounted on the upper part of the upper shell, the second mounting plate is located above the first mounting plate, the upper end of the vertical axis passes through the second mounting plate, the transverse plate is mounted on the top of the vertical axis, the magnetic block is mounted on the transverse plate, the magnetic sensitive unit is mounted on the second mounting plate, and the magnetic sensitive unit matches the magnetic block; when the turbine drives the vertical axis to rotate, the vertical axis drives the transverse plate and the magnetic block to rotate, and when the magnetic block passes through the magnetic sensitive unit, the magnetic sensitive unit senses the magnetic field of the magnetic block to generate a signal, and the rotation speed of the vertical axis and the turbine is calculated according to the frequency generated by the signal, thereby monitoring the flow rate and flow of the fire water.

[0013] Preferably, it also includes a second spring, and the magnetic block is slidably installed on the horizontal plate, the outer end of the second spring is connected to the magnetic block, and the inner end of the second spring is connected to the middle part of the horizontal plate; when the vertical axis drives the horizontal plate to rotate, the horizontal plate drives the magnetic block to rotate, and the magnetic block moves outward along the horizontal plate due to the centrifugal force, and the magnetic block stretches the second spring so that the elastic force of the second spring is balanced with the centrifugal force exerted on the magnetic block. When the magnetic block passes through the magnetic sensitive unit, the magnetic sensitive unit senses the magnetic field of the magnetic block and generates a signal. The closer the magnetic block is to the magnetic sensitive unit, the greater the magnetic field strength detected by the magnetic sensitive unit, and the strength of the signal is different according to the different magnetic field strengths of the magnetic block. By analyzing the signal strength, the vertical axis rotation speed is compensated to improve the monitoring accuracy.

[0014] Preferably, it also includes a spring three and a pressure sensor, the upper end of the spring three is connected to the horizontal plate through a bearing, the lower end of the spring three is connected to the detection end of the pressure sensor, and the pressure sensor is installed on the mounting plate two; when the fire water impacts the turbine, the turbine rotates around the axis of the vertical shaft, and at the same time the turbine is subjected to pressure along the axis of the water outlet end, the pressure drives the vertical shaft to descend and compresses the spring three, the pressure sensor detects the pressure of the spring three, and compensates for the vertical shaft rotation speed by analyzing the pressure, thereby improving the monitoring accuracy.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The water inlet and the water outlet are connected to the fire-fighting pipeline through flanges. The driving assembly drives the shaft tube and bevel gear 2 to rotate. Bevel gear 2 meshes with multiple bevel gears 1 to drive multiple gates to rotate synchronously, so that multiple gates open the gate support frame. The fire-fighting water is input into the shell through the water inlet and transported to the downstream of the fire-fighting pipeline through the gate support frame and the water outlet. The fire-fighting water flow impacts the turbine, so that the turbine drives the vertical shaft to rotate. The monitoring assembly detects the rotation speed of the vertical shaft, thereby detecting the flow rate and flow of the fire-fighting water in the water outlet;

[0017] 2. When the rotation speed detected by the monitoring component is higher than the threshold, the driving component drives the shaft tube and the bevel gear 2 to rotate, so that the inclination angles of the multiple gates are reduced, and the degree of opening of the gate support frame is reduced, thereby reducing the flow in the water outlet; on the contrary, when the rotation speed detected by the monitoring component is lower than the threshold, the driving component drives the shaft tube and the bevel gear 2 to rotate in the opposite direction, so that the inclination angles of the multiple gates are increased, and the degree of opening of the gate support frame is increased, thereby increasing the flow in the water outlet; the function of regulating the water flow in the fire-fighting pipeline is realized, so that the fire-fighting water flow remains stable;

[0018] 3. When the turbine rotates when there is no fire-fighting task in the fire-fighting pipeline, it indicates that the fire-fighting pipeline is leaking or has been stolen. At this time, the driving assembly drives the shaft tube and the bevel gear to rotate, so that multiple gates rotate synchronously to close the gate support frame, thereby cutting off the fire-fighting pipeline; it has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the present invention in a decomposed state;

[0022] Figure 4 is an axonometric schematic diagram of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the emergency closing gate state of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the gate support frame, gate, shaft tube and drive assembly;

[0025] Figure 7 It is a structural schematic diagram of the gate support frame, gate, bevel gear one, shaft tube and bevel gear two;

[0026] Figure 8 It is a schematic diagram of the structure of the turbine, vertical shaft, gate support frame, gate and monitoring components;

[0027] Fig. 9 It is a structural diagram of structures such as a gate support frame, a limit ring, an outer sleeve, a push rod, a spring and a connecting rod.

[0028] Markings in the attached drawings: 1. Shell; 2. Water inlet end; 3. Water outlet end; 4. Turbine; 5. Vertical shaft; 6. Gate support frame; 7. Gate; 8. Bevel gear one; 9. Shaft tube; 10. Bevel gear two; 11. Mounting plate one; 12. Upper shell; 13. Worm gear; 14. Reducer motor; 15. Worm; 16. Transmission shaft; 17. Handwheel; 18. Limiting ring; 19. Outer sleeve; 20. Push rod; 21. Spring one; 22. Connecting rod; 23. Cross plate; 24. Magnetic block; 25. Magnetic sensitive unit; 26. Spring two; 27. Spring three; 28. Pressure sensor; 29. ​​Mounting plate two; 30. Mounting seat; 31. Sealing ring; 32. Partition; 33. Lower flange; 34. Upper flange; 35. Bolt. DETAILED DESCRIPTION

[0029] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] Example 1

[0031] like Figures 1 to 7As shown, a throttling and cutting device for monitoring fire-fighting pipelines includes a shell 1, a water inlet end 2, a water outlet end 3 and a turbine 4, the water inlet end 2 is installed on the upper part of the shell 1, the water outlet end 3 is installed on the lower part of the shell 1, the water inlet end 2, the shell 1 and the water outlet end 3 are connected, and the turbine 4 is located inside the water outlet end 3; it also includes a vertical shaft 5, a gate support frame 6, a gate 7, a bevel gear 1 8, a shaft tube 9, a bevel gear 2 10, a mounting plate 1 11, an upper shell 12 and a monitoring component, the lower end of the vertical shaft 5 is connected to the middle part of the turbine 4, the upper shell 12 is installed on the shell 1, the gate support frame 6 is installed on the inner wall of the water outlet end 3, a plurality of gates 7 are rotatably installed on the gate support frame 6 through a rotating shaft, and the inner ends of the rotating shafts of the plurality of gates 7 are connected to the gates. The middle part of the support frame 6 is rotatably connected, and multiple bevel gears 8 are concentrically installed on the inner ends of the rotating shafts of multiple gate plates 7 respectively. The shaft tube 9 is rotatably sleeved on the outer side of the vertical shaft 5. The lower end of the shaft tube 9 is rotatably connected to the middle part of the gate support frame 6. The lower end of the shaft tube 9 is concentrically installed with a bevel gear 10, and the bevel gear 10 is meshed with multiple bevel gears 8. A mounting plate 11 is installed at the lower part of the upper shell 12. The upper ends of the shaft tube 9 and the vertical shaft 5 both pass through the mounting plate 11 and extend into the interior of the upper shell 12. A driving component of the shaft tube 9 is installed on the mounting plate 11, and the driving component drives the shaft tube 9 to rotate. A monitoring component of the vertical shaft 5 is installed on the upper part of the upper shell 12, and the monitoring component detects the rotation speed of the vertical shaft 5; it also includes a lower flange 33 and an upper flange 34 and multiple bolts 35, a lower flange 33 is arranged on the upper part of the shell 1, an upper flange 34 is arranged on the lower part of the upper shell 12, and multiple bolts 35 screw the lower flange 33 and the upper flange 34 together; the gate support frame 6 includes a mounting seat 30, a sealing ring 31 and multiple partitions 32, the mounting seat 30 is located in the middle of the water outlet 3, a transmission chamber is arranged inside the mounting seat 30, a vertical through hole connected to the transmission chamber is arranged in the middle of the mounting seat 30, and the through hole is for the vertical shaft 5 and the shaft tube 9 to pass through, the sealing ring 31 is installed on the inner wall of the water outlet 3, multiple partitions 32 are arranged circumferentially between the mounting seat 30 and the sealing ring 31, multiple gates 7 are respectively located between the multiple partitions 32, and the outer ends of the rotating shafts of the multiple gates 7 are connected to the sealing ring 31. The sealing ring 31 is rotatably connected, the inner ends of the rotating shafts of the multiple gate plates 7 are rotatably connected to the mounting seat 30, the multiple bevel gears 8 are located in the transmission chamber, and the lower end of the shaft tube 9 is rotatably mounted in the through hole of the mounting seat 30; the driving assembly includes a worm gear 13, a reduction motor 14 and a worm 15, the worm gear 13 is concentrically mounted on the upper end outer wall of the bevel gear 8, the reduction motor 14 is mounted on the mounting plate 11, the output shaft of the reduction motor 14 is concentrically mounted with the worm 15, and the worm 15 is meshed with the worm gear 13; it also includes a transmission shaft 16 and a handwheel 17, the lower end of the transmission shaft 16 is transmission-connected to the rotor shaft of the reduction motor 14, the upper end of the transmission shaft 16 extends above the upper shell 12, and the handwheel 17 is mounted on the upper end of the transmission shaft 16.

[0032] The upper flange 34 of the upper shell 12 is aligned with the lower flange 33 of the shell 1, and the lower flange 33 and the upper flange 34 are screwed and fastened using multiple bolts 35, so that the upper shell 12 is installed on the shell 1, which is convenient for the inspection and maintenance of the monitoring components and drive components in the upper shell 12. The water inlet end 2 and the water outlet end 3 are connected to the fire protection pipeline through flanges. The output shaft of the reduction motor 14 drives the worm 15 to rotate, and the worm 15 engages with the worm wheel 13 to drive the shaft tube 9 and the bevel gear 10 to rotate, so that the bevel gear 10 engages with multiple bevel gears 18 to drive the gate 7 to rotate synchronously. The drive is reliable and stable, and the worm 15 and the worm wheel 1 3 meshing transmission, to achieve the locking effect of the multiple gate plates 7, improve the stability of the multiple gate plates 7, rotate the transmission shaft 16 through the hand wheel 17, so that the transmission shaft 16 drives the rotor of the reduction motor 14 to rotate, so that the reduction motor 14 drives the worm 15 to rotate, thereby realizing the manual emergency operation, the shaft tube 9 and the bevel gear 2 10 rotate, the bevel gear 2 10 meshes with the multiple bevel gears 1 8 to drive the multiple gate plates 7 to rotate synchronously, when the multiple gate plates 7 rotate to tilt, the fire water flows through the gaps between the multiple gate plates 7 and the multiple partitions 32, by adjusting the inclination angle of the end faces of the multiple gate plates 7 and the sealing ring 31 The size of the fire water flow is adjusted, and the fire water flow impacts the turbine 4, so that the turbine 4 drives the vertical shaft 5 to rotate, and the monitoring component detects the rotation speed of the vertical shaft 5, thereby detecting the flow rate and flow of the fire water in the water outlet 3. When the rotation speed detected by the monitoring component is higher than the threshold value, the driving component drives the shaft tube 9 and the bevel gear 10 to rotate, so that the inclination angle of the multiple gates 7 is reduced, and the degree of opening of the gate support frame 6 is reduced, thereby reducing the flow in the water outlet 3; on the contrary, when the rotation speed detected by the monitoring component is lower than the threshold value, the driving component drives the shaft tube 9 and the bevel gear 10 to rotate in the opposite direction, so that the inclination angle of the multiple gates 7 is increased, and the opening degree of the gate support frame 6 is increased. The degree to which the large gate support frame 6 is opened increases the flow in the water outlet 3; the water flow in the fire-fighting pipeline is regulated to maintain a stable fire-fighting water flow; when the fire-fighting pipeline has no fire-fighting task and the turbine 4 rotates, it indicates that the fire-fighting pipeline is leaking or has been stolen. At this time, the reduction motor 14 drives the shaft tube 9 and the bevel gear 10 to rotate, so that the multiple gates 7 rotate to a horizontal position, and the edges of the multiple gates 7 are in sealing contact with the inner side walls of the multiple partitions 32, the inner side walls of the sealing rings 31 and the outer side walls of the mounting seat 30, so that the multiple gates 7 cut off the water outlet 3, thereby cutting off the fire-fighting pipeline.

[0033] Example 2

[0034] like Figure 1 , Figure 2 , Figure 5 and Fig. 9As shown, on the basis of Example 1, it also includes a limit ring 18, an outer sleeve 19 and a push rod 20, the limit ring 18 is slidably connected to the inner wall of the water outlet end 3, the limit ring 18 is located above the sealing ring 31, the outer sleeve 19 is slidably mounted on the outer side of the bevel gear 8, the lower end of the outer sleeve 19 is connected to the limit ring 18 through a bracket, the fixed end of the push rod 20 is installed on the lower end surface of the mounting plate 11, and the lower end of the piston rod of the push rod 20 is connected to the outer sleeve 19; it also includes a spring 21 and a connecting rod 22, the reduction motor 14 is movably arranged with the mounting plate 11, the lower end of the spring 21 is connected to the fixed end of the push rod 20, the upper end of the spring 21 is connected to the lower end surface of the mounting plate 11, the lower end of the connecting rod 22 is connected to the fixed end of the push rod 20, and the upper end of the connecting rod 22 passes through the mounting plate 11 and is connected to the reduction motor 14.

[0035] The extension or shortening of the piston rod of the spring 21 drives the outer sleeve 19 to rise and fall along the bevel gear 8, so that the outer sleeve 19 drives the limit ring 18 to rise and fall, thereby adjusting the distance between the limit ring 18 and the sealing ring 31, so that the pressure sensor 28 limits the maximum opening angle of the multiple gates 7, and limits the range of flow regulation. When it is necessary to urgently close the multiple gates 7 to cut off the fire water in the water outlet 3, the piston rod of the push rod 20 extends to push the outer sleeve 19 and the limit ring 18 downward. Since the multiple gates 7 are locked, the fixed end of the push rod 20 compresses the spring 21, so that the fixed elevation of the push rod 20 pushes the reduction motor 14 through the connecting rod 22, so that the reduction motor 14 drives the worm 15 to rise, and the worm 15 is disengaged from the worm wheel 13, so that the multiple gates 7 are unlocked, and the piston rod of the push rod 20 continues to extend so that the limit ring 18 is pressed against the sealing ring 31, so that the limit ring 18 flattens the multiple gates 7, so that the multiple gates 7 close the water outlet 3 urgently to cut off the fire water.

[0036] Example 3

[0037] like Figure 1 , Figure 2 , Figure 5 and Figure 8As shown, on the basis of Example 1, the monitoring component includes a transverse plate 23, a magnetic block 24, a magnetic sensitive unit 25 and a second mounting plate 29, the second mounting plate 29 is installed on the upper part of the upper shell 12, the second mounting plate 29 is located above the first mounting plate 11, the upper end of the vertical axis 5 passes through the second mounting plate 29, the transverse plate 23 is installed at the top of the vertical axis 5, the magnetic block 24 is installed on the transverse plate 23, the magnetic sensitive unit 25 is installed on the second mounting plate 29, and the magnetic sensitive unit 25 matches the magnetic block 24; it also includes a second spring 26, the magnetic block 24 is slidably installed on the transverse plate 23, the outer end of the second spring 26 is connected to the magnetic block 24, and the inner end of the second spring 26 is connected to the middle part of the transverse plate 23; it also includes a third spring 27 and a pressure sensor 28, the upper end of the third spring 27 is connected to the transverse plate 23 through a bearing, the lower end of the third spring 27 is connected to the detection end of the pressure sensor 28, and the pressure sensor 28 is installed on the second mounting plate 29.

[0038] When the fire water hits the turbine 4, the turbine 4 rotates around the axis of the vertical shaft 5. When the turbine 4 drives the vertical shaft 5 to rotate, the vertical shaft 5 drives the horizontal plate 23 and the magnet 24 to rotate. The magnet 24 moves outward along the horizontal plate 23 due to the centrifugal force. The magnet 24 stretches the spring 26 so that the elastic force of the spring 26 is balanced with the centrifugal force on the magnet 24. When the magnet 24 passes through the magnetic sensitive unit 25, the magnetic sensitive unit 25 senses the magnetic field of the magnet 24 and generates a signal. The speed of the vertical shaft 5 and the turbine 4 is calculated according to the frequency generated by the signal. 3 rotates, the horizontal plate 23 drives the magnetic block 24 to rotate. The closer the magnetic block 24 is to the magnetic sensitive unit 25, the greater the magnetic field strength detected by the magnetic sensitive unit 25. The strength of the signal is different according to the different magnetic field strengths of the magnetic block 24. The rotation speed of the vertical shaft 5 is compensated by analyzing the signal strength. At the same time, the turbine 4 is subjected to pressure along the axis of the water outlet end 3. The pressure drives the vertical shaft 5 to descend and compress the spring three 27. The pressure sensor 28 detects the pressure of the spring three 27. The rotation speed of the vertical shaft 5 is compensated by analyzing the pressure, thereby improving the monitoring accuracy.

[0039] like Figures 1 to 9As shown, a throttling and cutting device for monitoring fire-fighting pipelines of the present invention, when working, firstly, the water inlet end 2 and the water outlet end 3 are connected to the fire-fighting pipeline through flanges, the output shaft of the reduction motor 14 drives the worm 15 to rotate, the worm 15 engages with the worm wheel 13 to drive the shaft tube 9 and the bevel gear 2 10 to rotate, so that the bevel gear 2 10 engages with multiple bevel gears 1 8 to drive the gate plate 7 to rotate synchronously, so that multiple gate plates 7 open the gate plate support frame 6, and the fire-fighting water is input into the shell 1 through the water inlet end 2 and is transported to the downstream of the fire-fighting pipeline through the gate plate support frame 6 and the water outlet end 3, and then the fire-fighting water flow impacts the turbine 4, so that the turbine 4 drives the vertical shaft 5 to rotate, and when the turbine 4 drives the vertical shaft 5 to rotate, the vertical shaft 5 drives the horizontal plate 23 and the magnetic block 24 to rotate, and the magnetic block 24 is subjected to centrifugal force and moves outward along the horizontal plate 23. The magnetic block 24 stretches the spring 26 so that the elastic force of the spring 26 is balanced with the centrifugal force exerted on the magnetic block 24. When the magnetic block 24 passes through the magnetic sensitive unit 25, the magnetic sensitive unit 25 senses the magnetic field of the magnetic block 24 and generates a signal. The rotation speed of the vertical shaft 5 and the turbine 4 is calculated according to the frequency generated by the signal. Since the closer the magnetic block 24 is to the magnetic sensitive unit 25, the greater the magnetic field strength detected by the magnetic sensitive unit 25, and the signal strength is different according to the different magnetic field strengths of the magnetic block 24, the rotation speed of the vertical shaft 5 is compensated by analyzing the signal strength. At the same time, the turbine 4 is subjected to pressure along the axis of the water outlet 3, and the pressure drives the vertical shaft 5 to descend and compress the spring 3 27. The pressure sensor The device 28 detects the pressure of the spring three 27, and compensates for the rotation speed of the vertical shaft 5 by analyzing the pressure, so as to detect the flow rate and flow of the fire water in the water outlet 3, and then when the rotation speed of the turbine 4 and the vertical shaft 5 is higher than the threshold value, the reduction motor 14 drives the shaft tube 9 and the bevel gear 2 10 to rotate, so that the inclination angle of the multiple gates 7 is reduced, and the degree of opening of the gate support frame 6 is reduced, thereby reducing the flow in the water outlet 3; on the contrary, when the rotation speed of the turbine 4 and the vertical shaft 5 is lower than the threshold value, the reduction motor 14 drives the shaft tube 9 and the bevel gear 2 10 to rotate in the opposite direction, so that the inclination angle of the multiple gates 7 is increased, and the degree of opening of the gate support frame 6 is increased, thereby increasing the flow in the water outlet 3; the regulating function of the water flow in the fire pipeline is realized, The fire-fighting water flow remains stable; finally, when the fire-fighting pipeline has no fire-fighting task and the turbine 4 rotates, it indicates that the fire-fighting pipeline is leaking or has been stolen, and the piston rod of the push rod 20 extends to push the outer sleeve 19 and the limit ring 18 downward. Since multiple gate plates 7 are locked, the fixed end of the push rod 20 compresses the spring 21, so that the fixed elevation of the push rod 20 pushes up the reduction motor 14 through the connecting rod 22, so that the reduction motor 14 drives the worm 15 to rise, and the worm 15 is disengaged from the worm wheel 13, so that the multiple gate plates 7 are unlocked, and the piston rod of the push rod 20 continues to extend so that the limit ring 18 is pressed tightly on the sealing ring 31, so that the limit ring 18 flattens the multiple gate plates 7, so that the multiple gate plates 7 can urgently close the water outlet end 3 to cut off the fire-fighting water.

[0040] The main functions achieved by the present invention are:

[0041] 1. It can monitor the flow rate and flow of fire water in the fire pipeline, and adjust and cut off the flow of fire water according to the flow rate;

[0042] 2. The gate 7 has a self-locking function, and the throttling and cutting effects are more stable;

[0043] 3. Ability to perform manual operation;

[0044] 4. The water outlet 3 can be closed in an emergency to cut off the fire water;

[0045] 5. Improve the monitoring accuracy of fire water flow rate and flow through compensation measures.

[0046] The throttling and cutting device for monitoring fire-fighting pipelines of the present invention has common mechanical installation, connection or setting methods, and can be implemented as long as the beneficial effects can be achieved; the shell 1, water inlet end 2, water outlet end 3, turbine 4, vertical shaft 5, gate plate 7, bevel gear one 8, bevel gear two 10, worm gear 13, reduction motor 14, worm 15, transmission shaft 16, hand wheel 17, push rod 20, spring one 21, magnetic block 24, magnetic sensitive unit 25, spring two 26, spring three 27, pressure sensor 28, lower flange 33, upper flange 34, and bolt 35 of the throttling and cutting device for monitoring fire-fighting pipelines of the present invention are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A throttling and cutting device for monitoring a fire-fighting pipeline, comprising a housing (1), a water inlet (2), a water outlet (3) and a turbine (4), wherein the water inlet (2) is mounted on the upper part of the housing (1), the water outlet (3) is mounted on the lower part of the housing (1), the water inlet (2), the housing (1) and the water outlet (3) are connected, and the turbine (4) is located inside the water outlet (3); characterized in that: The invention also comprises a vertical shaft (5), a gate support frame (6), a gate (7), a bevel gear one (8), a shaft tube (9), a bevel gear two (10), a mounting plate one (11), an upper shell (12) and a monitoring component. The lower end of the vertical shaft (5) is connected to the middle of the turbine (4). The upper shell (12) is mounted on the shell (1). The gate support frame (6) is mounted on the inner wall of the water outlet end (3). The plurality of gates (7) are rotatably mounted on the gate support frame (6) via a rotating shaft. The inner ends of the rotating shafts of the plurality of gates (7) are rotatably connected to the middle of the gate support frame (6). The plurality of bevel gears one (8) are respectively concentrically mounted on the inner ends of the rotating shafts of the plurality of gates (7). The shaft tube ( 9) is rotatably sleeved on the outer side of the vertical shaft (5), the lower end of the shaft tube (9) is rotatably connected to the middle part of the gate support frame (6), the lower end of the shaft tube (9) is concentrically mounted with a bevel gear 2 (10), the bevel gear 2 (10) is meshed with a plurality of bevel gears 1 (8), a mounting plate 1 (11) is mounted on the lower part of the upper shell (12), the upper ends of the shaft tube (9) and the vertical shaft (5) both pass through the mounting plate 1 (11) and extend into the interior of the upper shell (12), a driving component of the shaft tube (9) is mounted on the mounting plate 1 (11), the driving component drives the shaft tube (9) to rotate, a monitoring component of the vertical shaft (5) is mounted on the upper part of the upper shell (12), and the monitoring component detects the rotation speed of the vertical shaft (5).

2. A throttling and cutting device for monitoring fire protection pipelines according to claim 1, characterized in that: It also includes a lower flange (33), an upper flange (34) and a plurality of bolts (35). The lower flange (33) is arranged on the upper part of the shell (1), and the upper flange (34) is arranged on the lower part of the upper shell (12). The lower flange (33) and the upper flange (34) are screwed and fastened by a plurality of bolts (35).

3. A throttling and cutting device for monitoring fire protection pipelines according to claim 1, characterized in that: The gate support frame (6) comprises a mounting seat (30), a sealing ring (31) and a plurality of partitions (32). The mounting seat (30) is located in the middle of the water outlet end (3). A transmission chamber is arranged inside the mounting seat (30). A vertical through hole communicating with the transmission chamber is arranged in the middle of the mounting seat (30). The through hole is used for the vertical shaft (5) and the shaft tube (9) to pass through. The sealing ring (31) is mounted on the inner wall of the water outlet end (3). A plurality of partitions (32) are arranged circumferentially between the mounting seat (30) and the sealing ring (31). The plurality of gates (7) are respectively located between the plurality of partitions (32). The outer ends of the rotating shafts of the plurality of gates (7) are rotatably connected to the sealing ring (31). The inner ends of the rotating shafts of the plurality of gates (7) are rotatably connected to the mounting seat (30). The plurality of bevel gears (8) are located in the transmission chamber. The lower end of the shaft tube (9) is rotatably mounted in the through hole of the mounting seat (30).

4. A throttling and cutting device for monitoring fire protection pipelines according to claim 1, characterized in that: The driving assembly comprises a worm wheel (13), a reduction motor (14) and a worm (15); the worm wheel (13) is coaxially mounted on the upper end outer wall of the bevel gear (8); the reduction motor (14) is mounted on the mounting plate (11); the worm (15) is coaxially mounted on the output shaft of the reduction motor (14); and the worm (15) is meshed with the worm wheel (13).

5. A throttling and cutting device for monitoring fire protection pipelines as claimed in claim 4, characterized in that: It also includes a transmission shaft (16) and a hand wheel (17), wherein the lower end of the transmission shaft (16) is transmission-connected to the rotor shaft of the reduction motor (14), the upper end of the transmission shaft (16) extends above the upper housing (12), and the hand wheel (17) is mounted on the upper end of the transmission shaft (16).

6. A throttling and cutting device for monitoring fire protection pipelines as claimed in claim 4, characterized in that: It also includes a limit ring (18), an outer sleeve (19) and a push rod (20), wherein the limit ring (18) is slidably connected to the inner wall of the water outlet end (3), the limit ring (18) is located above the sealing ring (31), the outer sleeve (19) is slidably sleeved on the outer side of the bevel gear (8), the lower end of the outer sleeve (19) is connected to the limit ring (18) through a bracket, the fixed end of the push rod (20) is installed on the lower end surface of the mounting plate (11), and the lower end of the piston rod of the push rod (20) is connected to the outer sleeve (19).

7. A throttling and cutting device for monitoring fire protection pipelines according to claim 6, characterized in that: It also includes a spring (21) and a connecting rod (22), the reduction motor (14) and the mounting plate (11) are movably arranged, the lower end of the spring (21) is connected to the fixed end of the push rod (20), the upper end of the spring (21) is connected to the lower end surface of the mounting plate (11), the lower end of the connecting rod (22) is connected to the fixed end of the push rod (20), and the upper end of the connecting rod (22) passes through the mounting plate (11) and is connected to the reduction motor (14).

8. A throttling and cutting device for monitoring fire protection pipelines according to claim 1, characterized in that: The monitoring component comprises a transverse plate (23), a magnetic block (24), a magnetic sensitive unit (25) and a second mounting plate (29). The second mounting plate (29) is mounted on the upper part of the upper shell (12). The second mounting plate (29) is located above the first mounting plate (11). The upper end of the vertical axis (5) passes through the second mounting plate (29). The transverse plate (23) is mounted on the top of the vertical axis (5). The magnetic block (24) is mounted on the transverse plate (23). The magnetic sensitive unit (25) is mounted on the second mounting plate (29). The magnetic sensitive unit (25) matches the magnetic block (24).

9. A throttling and cutting device for monitoring fire protection pipelines according to claim 8, characterized in that: It also includes a second spring (26), a magnetic block (24) slidably mounted on the transverse plate (23), an outer end of the second spring (26) connected to the magnetic block (24), and an inner end of the second spring (26) connected to the middle of the transverse plate (23).

10. A throttling and cutting device for monitoring fire protection pipelines according to claim 8, characterized in that: It also includes a spring three (27) and a pressure sensor (28), the upper end of the spring three (27) is connected to the horizontal plate (23) through a bearing member, the lower end of the spring three (27) is connected to the detection end of the pressure sensor (28), and the pressure sensor (28) is installed on the mounting plate two (29).

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