High-pressure water pump for fire fighting

Abstract

The invention discloses a fire extinguishing high-pressure water pump, and relates to the technical field of fire pumps, the fire extinguishing high-pressure water pump comprises a blow-off pipe and a sewage collection cylinder, a matching groove is formed in the surface of the blow-off pipe, a connecting ring is rotatably connected in the matching groove, a blow-off assembly is arranged in the blow-off pipe, and a replacement assembly is arranged at the lower end of the connecting ring. A linkage assembly is arranged on the surface of the dirt collecting barrel, the replacing assembly is arranged in the dirt collecting barrel, and the dirt discharging assembly and the replacing assembly are connected in a matched mode through the linkage assembly. According to the high-pressure water pump for fire fighting, the pollution discharge assembly with three working modes and the replacement assembly are arranged to be matched, so that the water pump can conduct pollution collection, pollution discharge and replacement without being closed, water flow leakage is avoided, in other words, when the water pump works, the pollution discharge assembly and the replacement assembly are both in an open state for pollution collection, and the replacement assembly is not in a closed state; the pollution discharge assembly is closed and the replacement assembly is opened to discharge pollution, and the pollution discharge assembly is opened and the replacement assembly is closed to realize replacement.

Description

Technical Field

[0001] The invention relates to the technical field of fire water pumps, and in particular to a high-pressure water pump for fire extinguishing. Background Art

[0002] Fire pumps are a vital component in firefighting systems, mainly used to provide the necessary water source for firefighting and cooling. Fire pumps transfer energy to water through the rotation of the impeller, increase the kinetic energy and pressure energy of the water, and transport it to the firefighting equipment to meet the requirements of water volume and water pressure.

[0003] Fire pumps are widely used in industrial, commercial and public areas. They are used in fire protection systems in factories, warehouses, shopping malls, office buildings, hospitals, schools and other places to ensure that they can be quickly started in an emergency to provide support for fire fighting.

[0004] When a fire pump is in use, the water source used is often a natural water source or a fire pool. The cleanliness of these water sources is not comparable to tap water, and there are often many impurities and dirt in them. If these dirt and impurities are not treated and used as fire pumps, they may cause the pump to be blocked or damaged, and even delay the fire fighting. Therefore, when the fire pump is working, it is a very important measure to pre-filter and drain the water source. Summary of the invention

[0005] The object of the present invention is to provide a high-pressure water pump for fire fighting to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A high-pressure water pump for fire fighting, comprising a sewage pipe and a sewage collecting barrel, wherein the sewage pipe surface is provided with a matching groove, a connecting ring is rotatably connected in the matching groove, a sewage discharge assembly is provided inside the sewage pipe, a replacement assembly is provided at the lower end of the connecting ring, a linkage assembly is provided on the sewage collecting barrel surface, the replacement assembly is arranged in the sewage collecting barrel, and the sewage discharge assembly and the replacement assembly are matched and connected through the linkage assembly;

[0008] The sewage discharge assembly and the replacement assembly have a first working mode, a second working mode and a third working mode;

[0009] In the first working mode, the sewage discharge component and the replacement component are both in an open state to collect sewage;

[0010] In the second working mode, the sewage discharge component is closed and the replacement component is opened to discharge sewage;

[0011] In the third working mode, the sewage discharge component is opened and the replacement component is closed to achieve replacement.

[0012] As a further preferred scheme in the embodiment of the present invention, an I-shaped tube is fixed at the upper end of the sewage pipe, a fixing strip is fixedly connected to the inner side surface of the I-shaped tube, a center column is fixedly connected to one end of the fixing strip, the center column is arranged at the center position of the I-shaped tube, and a plurality of through holes are arranged on the surface of the I-shaped tube.

[0013] As a further preferred scheme in the embodiment of the present invention, the sewage discharge assembly includes a plurality of sewage shafts rotatably connected to the side surface of the central column, and a plurality of sewage blades are respectively connected to the surfaces of the sewage shafts, and one end of the sewage shafts is respectively rotatably matched with a plurality of through holes.

[0014] As a further preferred solution in the embodiment of the present invention, the sewage discharge assembly also includes a plurality of linkage plates rotatably connected to one end of the plurality of sewage passing shafts, and a plurality of linkage bars are rotatably connected between the plurality of linkage plates.

[0015] As a further preferred scheme in the embodiment of the present invention, a limiting groove is also provided on the surface of the sewage pipe, and the linkage assembly includes a telescopic strip connected to the lower end of one of the linkage plates, and a matching rod is connected to the surface of one side of the telescopic strip, and one end of the matching rod is slidably matched with the limiting groove.

[0016] As a further preferred solution in the embodiment of the present invention, the linkage assembly also includes a connecting buckle rotatably connected to the surface of the dirt collecting barrel, and one end of the connecting buckle is provided with a connecting hole, and one end of the matching rod is connected to the connecting hole.

[0017] As a further preferred scheme in the embodiment of the present invention, the replacement assembly includes an opening and closing ring fixedly connected to the lower end of the sewage pipe, and an outer gear ring fixedly connected to the lower end of the connecting ring, and the lower end of the opening and closing ring is rotatably connected to an inner gear ring, and the inner gear ring is meshed with the outer gear ring.

[0018] As a further preferred scheme in the embodiment of the present invention, the replacement component also includes an opening and closing piece rotatably connected to the lower surface of the inner gear ring, and the opening and closing ring is provided with an opening and closing groove, and an opening and closing shaft is slidably connected in the opening and closing groove, and an opening and closing strip is connected to the lower end of the opening and closing shaft, and one end of the opening and closing strip is rotatably connected to the upper surface of the opening and closing piece, and the lower surface of the opening and closing strip is rotatably connected to the upper surface of the inner gear ring.

[0019] As a further preferred scheme in the embodiment of the present invention, a circular hole is provided on the lower surface of the outer gear ring, a telescopic tube is slidably connected in the circular hole, a telescopic spring is provided on the surface of the telescopic tube, a slope groove is provided on the upper surface of the dirt collecting barrel, the telescopic tube slides in cooperation with the slope groove, a convergence groove is provided inside the dirt collecting barrel, the opening and closing piece is adapted to the position of the convergence groove, and the slope groove is communicated with the convergence groove.

[0020] As a further preferred scheme in the embodiment of the present invention, it also includes a pump body, the upper surface of the pump body is connected to a sealing cover, the upper surface of the sealing cover is provided with a driving motor, the pump body is provided with an impeller, the upper surface of the pump body is provided with an axial hole, one end of the impeller passes through the sealing cover and the axial hole and is connected to the output end of the driving motor, the surface of the pump body is connected to a water inlet pipe and a water outlet pipe, the water inlet pipe is provided with a filter ring, and the surface of the pump body and the surface of the driving motor are respectively fixedly connected to a fixing frame.

[0021] In the above technical solution, the high-pressure water pump for fire extinguishing provided by the present invention has the beneficial effects of:

[0022] The present invention provides a sewage discharge component and a replacement component with three working modes, so that the water pump can collect sewage, discharge sewage and replace sewage without being shut down, and water leakage will not be caused. That is, when the water pump is working, the sewage discharge component and the replacement component are both in an open state to collect sewage, the sewage discharge component is closed and the replacement component is opened to discharge sewage, and the sewage discharge component is opened and the replacement component is closed to achieve replacement.

[0023] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0024] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the overall structure from another perspective provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the internal structure of a pump body provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a sewage discharge pipe and a sewage collection cylinder provided in an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the structure of an I-shaped tube provided in an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the internal structure of an I-shaped tube provided in an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the structure of a replacement assembly and a dirt collecting cylinder provided in an embodiment of the present invention;

[0033] Figure 8 An exploded view of a replacement assembly and a dirt collecting cylinder provided in an embodiment of the present invention;

[0034] Fig. 9 The embodiment of the present invention provides Figure 8 The enlarged structural diagram at A in the middle;

[0035] Fig.10 A cross-sectional view of a sewage discharge pipe and a sewage collection cylinder provided in an embodiment of the present invention;

[0036] Fig.11 The embodiment of the present invention provides Fig.10 The enlarged structural diagram at B in the middle;

[0037] Fig.12 A partial structural schematic diagram of a sewage discharge pipe and a sewage collecting cylinder provided in an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 100, pump body; 101, sealing cover; 102, driving motor; 103, impeller; 104, fixing frame; 105, water inlet pipe; 106, filter ring; 107, water outlet pipe; 200, sewage pipe; 201, limiting groove; 202, matching groove; 300, I-shaped pipe; 301, center column; 302, fixing strip; 303, sewage blade; 304, sewage shaft; 305, linkage plate; 306, linkage strip; 307, telescopic strip; 308, matching rod; 400, opening and closing ring; 401, opening and closing groove; 402, opening and closing shaft; 403, opening and closing strip; 404, opening and closing piece; 405, inner gear ring; 406, outer gear ring; 407, telescopic tube; 408, telescopic spring; 409, connecting ring; 500, dirt collecting cylinder; 501, slope groove; 502, convergence groove; 503, connecting buckle. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0041] See also Figure 1 - Fig.12 A high-pressure water pump for fire fighting and extinguishing includes a sewage pipe 200 and a sewage collecting barrel 500. The sewage pipe 200 is provided with a matching groove 202 on its surface, a connecting ring 409 is rotatably connected in the matching groove 202, a sewage discharge assembly is provided inside the sewage pipe 200, a replacement assembly is provided at the lower end of the connecting ring 409, a linkage assembly is provided on the surface of the sewage collecting barrel 500, the replacement assembly is provided in the sewage collecting barrel 500, and the sewage discharge assembly and the replacement assembly are connected through a linkage assembly;

[0042] The sewage discharge assembly and the replacement assembly have a first working mode, a second working mode and a third working mode;

[0043] In the first working mode, both the sewage discharge component and the replacement component are in an open state to collect sewage;

[0044] In the second working mode, the sewage discharge component is closed and the replacement component is opened to discharge sewage;

[0045] In the third working mode, the sewage discharge component is opened and the replacement component is closed to achieve replacement.

[0046] The present invention provides a sewage discharge component and a replacement component with three working modes, so that the water pump can collect sewage, discharge sewage and replace sewage without being shut down, and water leakage will not be caused. That is, when the water pump is working, the sewage discharge component and the replacement component are both in an open state to collect sewage, the sewage discharge component is closed and the replacement component is opened to discharge sewage, and the sewage discharge component is opened and the replacement component is closed to achieve replacement.

[0047] In an embodiment further provided by the present invention, an I-shaped tube 300 is fixed at the upper end of the sewage pipe 200, a fixing bar 302 is fixedly connected to the inner side surface of the I-shaped tube 300, one end of the fixing bar 302 is fixedly connected to a center column 301, the center column 301 is arranged at the center position of the I-shaped tube 300, and a plurality of through holes are arranged on the surface of the I-shaped tube 300.

[0048] Furthermore, the cross section of the I-shaped tube 300 is an I-shaped structure that is wide at both ends and narrow in the middle.

[0049] In an embodiment further provided by the present invention, the sewage discharge assembly includes a plurality of sewage shafts 304 rotatably connected to the side surface of the central column 301, and the surfaces of the plurality of sewage shafts 304 are respectively connected to a plurality of sewage blades 303, and one end of the plurality of sewage shafts 304 is respectively rotatably matched with a plurality of through holes.

[0050] In an embodiment further provided by the present invention, the sewage discharge assembly further includes a plurality of linkage plates 305 rotatably connected to one end of the plurality of sewage passage shafts 304 , and a plurality of linkage bars 306 are rotatably connected between the plurality of linkage plates 305 .

[0051] Specifically, when the linkage plate 305 rotates, the linkage bar 306 is driven to rotate, so that all the sewage-passing shafts 304 rotate synchronously, thereby driving the sewage-passing blades 303 to rotate.

[0052] In an embodiment further provided by the present invention, a limiting groove 201 is also provided on the surface of the sewage pipe 200, and the linkage assembly includes a telescopic strip 307 connected to the lower end of one of the linkage plates 305, and a matching rod 308 is connected to the surface of one side of the telescopic strip 307, and one end of the matching rod 308 is slidably matched with the limiting groove 201.

[0053] Furthermore, the limiting groove 201 is an arc-shaped groove structure.

[0054] In an embodiment further provided by the present invention, the linkage assembly also includes a connecting buckle 503 rotatably connected to the surface of the dirt collecting barrel 500, and one end of the connecting buckle 503 is provided with a connecting hole, and one end of the matching rod 308 is connected to the connecting hole.

[0055] Furthermore, the staff can choose whether to overlap the connecting buckle 503 on the matching rod 308 according to different working modes.

[0056] Specifically, when the matching rod 308 is connected to the connecting buckle 503, the dirt collecting barrel 500 is rotated, so that the matching rod 308 drives the telescopic strip 307 to rotate along the limiting groove 201, and the rotation of the telescopic strip 307 drives the linkage plate 305 to rotate to control the rotation angle of the dirt-passing blade 303.

[0057] In an embodiment further provided by the present invention, the replacement component includes an opening and closing ring 400 fixedly connected to the lower end of the sewage pipe 200, and an outer gear ring 406 fixedly connected to the lower end of the connecting ring 409, and the lower end of the opening and closing ring 400 is rotatably connected to an inner gear ring 405, and the inner gear ring 405 is meshed with the outer gear ring 406.

[0058] Furthermore, the lower surface of the inner gear ring 405 and the lower surface of the outer gear ring 406 are in the same plane.

[0059] In an embodiment further provided by the present invention, the replacement component also includes an opening and closing piece 404 rotatably connected to the lower surface of the inner gear ring 405, and an opening and closing groove 401 is provided on the opening and closing ring 400, and an opening and closing shaft 402 is slidably connected in the opening and closing groove 401, and an opening and closing strip 403 is connected to the lower end of the opening and closing shaft 402, and one end of the opening and closing strip 403 is rotatably connected to the upper surface of the opening and closing piece 404, and the lower surface of the opening and closing strip 403 is rotatably connected to the upper surface of the inner gear ring 405.

[0060] Furthermore, a hollow groove is provided in the upper part of the inner gear ring 405 to cooperate with the opening and closing groove 401 for movement.

[0061] Specifically, when the outer gear ring 406 rotates, it drives the inner gear ring 405 to rotate, thereby driving the opening and closing shaft 402 to slide in the opening and closing groove 401, and synchronously drives the opening and closing strip 403 to rotate, so as to drive the opening and closing piece 404 to rotate to adjust the opening size.

[0062] In an embodiment further provided by the present invention, a circular hole is provided on the lower surface of the outer gear ring 406, and a telescopic tube 407 is slidably connected in the circular hole. A telescopic spring 408 is provided on the surface of the telescopic tube 407, and a slope groove 501 is provided on the upper surface of the dirt collecting barrel 500. The telescopic tube 407 slides with the slope groove 501, and a convergence groove 502 is provided inside the dirt collecting barrel 500. The opening and closing piece 404 is adapted to the position of the convergence groove 502, and the slope groove 501 is communicated with the convergence groove 502.

[0063] Furthermore, the slope groove 501 is an inclined surface with an inclined upper surface, the highest point is sealed, and the lowest point has an opening, and the opening is connected to the convergence groove 502.

[0064] Furthermore, after the opening and closing piece 404 is rotated and opened, it is rotated into the gathering groove 502 to engage the dirt collecting barrel 500, so that the dirt collecting barrel 500 is fixed below the outer gear ring 406.

[0065] Specifically, when the dirt collecting barrel 500 is rotated, the telescopic tube 407 slides along the slope groove 501, and when it reaches the lowest opening, it abuts against the upper surface of the opening and closing piece 404, and the opening and closing piece 404 is pressed tightly under the action of the telescopic spring 408, so that the dirt collecting barrel 500 is fixed firmly.

[0066] In an embodiment further provided by the present invention, a pump body 100 is also included, a sealing cover 101 is connected to the upper surface of the pump body 100, a driving motor 102 is arranged on the upper surface of the sealing cover 101, an impeller 103 is arranged inside the pump body 100, an axial hole is arranged on the upper surface of the pump body 100, one end of the impeller 103 passes through the sealing cover 101 and the axial hole and is connected to the output end of the driving motor 102, a water inlet pipe 105 and a water outlet pipe 107 are connected to the surface of the pump body 100, a filter ring 106 is arranged inside the water inlet pipe 105, and a fixing frame 104 is fixedly connected to the surface of the pump body 100 and the surface of the driving motor 102 respectively.

[0067] Specifically, the driving motor 102 drives the impeller 103 to rotate, energizing the water flow so that the water flow meets the water volume and pressure requirements of the fire extinguishing system.

[0068] In the present invention, when the water pump is working, the driving motor 102 drives the impeller 103 to rotate, energizes the water flow, and the water flow is filtered when passing through the filter ring 106, and the dirt falls into the sewage pipe 200 through the opening of the sewage pipe 200; when the staff installs the water pump, it enters the sewage collection mode at this time, and the sewage collection cylinder 500 is abutted against the bottom of the outer gear ring 406, so that the lower end of the telescopic tube 407 abuts against the uppermost end of the slope groove 501, and then the connecting buckle 503 is overlapped on the matching rod 308, so that the matching rod 308 extends into the connecting hole, and then the sewage collection cylinder 500 is rotated, and the telescopic tube 407 is moved along the slope groove 50 1 slides to the lowest opening, at this time, the outer gear ring 406 drives the inner gear ring 405 to rotate synchronously, thereby driving the opening and closing shaft 402 to slide in the opening and closing groove 401, and synchronously drives the opening and closing strip 403 to rotate, so as to drive the opening and closing piece 404 to rotate and open, so that the opening and closing piece 404 is transferred into the convergence groove 502, and the telescopic tube 407 slides in and contacts the upper surface of the opening and closing piece 404, and the opening and closing piece 404 is pressed under the action of the telescopic spring 408, so that the dirt collecting barrel 500 is fixed firmly and the opening and closing piece 404 is opened; and, synchronously, under the action of the connecting buckle 503, the dirt collecting barrel 50 When rotating, the matching rod 308 will be synchronously driven to drive the telescopic strip 307 to rotate along the limiting groove 201. The rotation of the telescopic strip 307 drives the linkage plate 305 to rotate. When the linkage plate 305 rotates, the linkage strip 306 is driven to rotate, so that all the sewage shafts 304 rotate synchronously, so as to drive the sewage blades 303 to rotate and open, so that the opening and closing pieces 404 and the sewage blades 303 are synchronously opened to collect sewage; when replacing the sewage collecting cylinder 500, first rotate the sewage collecting cylinder 500 in the opposite direction, so that the opening and closing pieces 404 and the sewage blades 303 are synchronously closed to stop the water flow, and then pull out the connecting buckle 503. Remove the dirt collecting barrel 500, clean out the dirt in the dirt collecting barrel 500 and then put it back; in the sewage discharge mode, first rotate the dirt collecting barrel 500 in the opposite direction so that the opening and closing piece 404 and the sewage passing blade 303 are closed synchronously to stop the water flow, then pull out the connecting buckle 503 to remove the dirt collecting barrel 500, and then rotate the outer gear ring 406 to open the sewage passing blade 303 and close the opening and closing piece 404 to discharge the dirt in the sewage pipe 200 to discharge the sewage, finally, put the dirt collecting barrel 500 back and rotate to open the sewage passing blade 303, and then connect the connecting buckle 503 to the matching rod 308 to complete the sewage discharge.

[0069] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-pressure water pump for fire fighting, comprising a sewage discharge pipe (200) and a sewage collecting cylinder (500), characterized in that: The surface of the sewage discharge pipe (200) is provided with a matching groove (202), a connecting ring (409) is rotatably connected in the matching groove (202), a sewage discharge component is provided inside the sewage discharge pipe (200), a replacement component is provided at the lower end of the connecting ring (409), a linkage component is provided on the surface of the sewage collecting barrel (500), the replacement component is arranged in the sewage collecting barrel (500), and the sewage discharge component and the replacement component are matched and connected via the linkage component; The sewage discharge assembly and the replacement assembly have a first working mode, a second working mode and a third working mode; In the first working mode, the sewage discharge component and the replacement component are both in an open state to collect sewage; In the second working mode, the sewage discharge component is closed and the replacement component is opened to discharge sewage; In the third working mode, the sewage discharge component is opened and the replacement component is closed to achieve replacement.

2. A high-pressure water pump for fire extinguishing according to claim 1, characterized in that: An I-shaped pipe (300) is fixed to the upper end of the sewage discharge pipe (200), a fixing strip (302) is fixedly connected to the inner side surface of the I-shaped pipe (300), one end of the fixing strip (302) is fixedly connected to a center column (301), the center column (301) is arranged at the center position of the I-shaped pipe (300), and a plurality of through holes are arranged on the surface of the I-shaped pipe (300).

3. A high-pressure water pump for fire extinguishing according to claim 2, characterized in that: The sewage discharge assembly comprises a plurality of sewage passing shafts (304) rotatably connected to the side surface of the central column (301), and the surfaces of the plurality of sewage passing shafts (304) are respectively connected to a plurality of sewage passing blades (303), and one end of the plurality of sewage passing shafts (304) is respectively rotatably matched with a plurality of through holes.

4. A high-pressure water pump for fire extinguishing according to claim 3, characterized in that: The sewage discharge assembly further comprises a plurality of linkage plates (305) rotatably connected to one end of a plurality of sewage passage shafts (304), and a plurality of linkage bars (306) are rotatably connected between the plurality of linkage plates (305).

5. A high-pressure water pump for fire extinguishing according to claim 4, characterized in that: The surface of the sewage pipe (200) is also provided with a limiting groove (201), and the linkage assembly comprises a telescopic strip (307) connected to the lower end of one of the linkage plates (305), and a matching rod (308) is connected to the surface of one side of the telescopic strip (307), and one end of the matching rod (308) is slidably matched with the limiting groove (201).

6. A high-pressure water pump for fire extinguishing according to claim 5, characterized in that: The linkage assembly further comprises a connection buckle (503) rotatably connected to the surface of the dirt collecting barrel (500), one end of the connection buckle (503) is provided with a connection hole, and one end of the matching rod (308) is connected to the connection hole.

7. A high-pressure water pump for fire extinguishing according to claim 6, characterized in that: The replacement assembly comprises an opening and closing ring (400) fixedly connected to the lower end of the sewage pipe (200), and an outer gear ring (406) fixedly connected to the lower end of the connecting ring (409), and the lower end of the opening and closing ring (400) is rotatably connected to an inner gear ring (405), and the inner gear ring (405) is meshed with the outer gear ring (406).

8. A high-pressure water pump for fire extinguishing according to claim 7, characterized in that: The replacement component also includes an opening and closing piece (404) rotatably connected to the lower surface of the inner gear ring (405), and the opening and closing ring (400) is provided with an opening and closing groove (401), and an opening and closing shaft (402) is slidably connected in the opening and closing groove (401), and an opening and closing strip (403) is connected to the lower end of the opening and closing shaft (402), and one end of the opening and closing strip (403) is rotatably connected to the upper surface of the opening and closing piece (404), and the lower surface of the opening and closing strip (403) is rotatably connected to the upper surface of the inner gear ring (405).

9. A high-pressure water pump for fire extinguishing according to claim 8, characterized in that: A circular hole is provided on the lower surface of the outer gear ring (406), a telescopic tube (407) is slidably connected in the circular hole, a telescopic spring (408) is provided on the surface of the telescopic tube (407), a slope groove (501) is provided on the upper surface of the dirt collecting barrel (500), the telescopic tube (407) and the slope groove (501) are slidably matched, a convergence groove (502) is provided inside the dirt collecting barrel (500), the opening and closing piece (404) is adapted to the position of the convergence groove (502), and the slope groove (501) is communicated with the convergence groove (502).

10. A high-pressure water pump for fire extinguishing according to claim 9, characterized in that: The invention also comprises a pump body (100), wherein the upper surface of the pump body (100) is connected to a sealing cover (101), the upper surface of the sealing cover (101) is provided with a driving motor (102), an impeller (103) is provided inside the pump body (100), an axial hole is provided on the upper surface of the pump body (100), one end of the impeller (103) passes through the sealing cover (101) and the axial hole and is connected to the output end of the driving motor (102), the surface of the pump body (100) is connected to a water inlet pipe (105) and a water outlet pipe (107), a filter ring (106) is provided inside the water inlet pipe (105), and a fixing frame (104) is fixedly connected to the surface of the pump body (100) and the surface of the driving motor (102) respectively.

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