A variable frequency energy-saving circulating water pump

Abstract

The present invention discloses a variable frequency energy-saving circulating water pump, comprising a base, a motor is arranged on the left side of the upper end of the base, a connecting frame is arranged on the right end of the motor, the right end of the connecting frame is hinged to the pump body, a drain pipe and a water inlet pipe are arranged in the drain port opened on the upper side of the outer arc surface of the pump body and in the water inlet opened in the middle of the right end respectively, an impeller is rotatably connected to the middle of the left wall of the pump body, the right end of the motor and the left end of the impeller are connected by a coupling, an installation box is arranged on the left side of the front end of the base, a box door is hinged at the front end of the installation box, and also includes a cleaning mechanism, an adjusting mechanism and a fixing mechanism; the cleaning mechanism: it includes a mounting rod, a connecting arm and a knocking hammer, the variable frequency energy-saving circulating water pump reduces water flow resistance, improves operation efficiency and also reduces energy consumption, the entire frequency modulation work is easy to operate, the assembly process is simplified, the installation time is reduced, and the assembly and disassembly are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of circulating water pumps, in particular to a variable frequency energy-saving circulating water pump. Background Art

[0002] The variable frequency energy-saving circulating water pump is a device that uses variable frequency speed regulation technology to control the operation of the water pump. By adjusting the operating speed of the water pump, it can be made to work under different flow rates and heads, thereby reducing energy consumption. Compared with traditional fixed speed water pumps, variable frequency water pumps can accurately control power output according to actual needs to avoid unnecessary energy waste;

[0003] When the variable frequency energy-saving circulating water pump is in use, the impeller is usually driven by the driving device to rotate. When the impeller rotates, a low-pressure area will be formed inside the pump body. At this time, the water in the external pipeline enters the pump body through the water inlet pipe. After the water enters the pump body, it gains speed and kinetic energy as the impeller rotates, and finally it can be discharged through the drain pipe. When the running speed of the variable frequency energy-saving circulating water pump needs to be adjusted, the variable frequency energy-saving circulating water pump uses the frequency converter to perform frequency conversion. The frequency converter first converts the DC power through the rectifier, and then converts the DC power back to AC power through the inverter. At this time, the frequency of the AC power is variable. Then, the converted AC power is supplied to the driving device according to the actual situation, so that it can run at a variable speed;

[0004] During the operation of the existing variable frequency energy-saving circulating water pump, after working for a long time, scaling, corrosion or sediment accumulation will occur in the pump body. These scaling, corrosion or sediment accumulation will reduce the cross-sectional area of ​​the water flow channel and increase the water flow resistance, thereby causing a decrease in operating efficiency. As the operating efficiency decreases, in order to maintain the same flow rate and head, the pump needs to consume more energy, resulting in increased energy consumption. In the subsequent frequency conversion work, although the frequency conversion work can be performed through the frequency converter, the internal structure of the frequency converter is relatively complex, and the actual operation is relatively complex. The operator needs additional training before being able to operate and use it. When assembling the variable frequency energy-saving circulating water pump, it is necessary to manually align the drive device and the pump body, and then assemble and fix them through the bolt connection. This method takes a relatively long time, and it is also troublesome to disassemble it during subsequent maintenance and repair, which reduces the working efficiency. For this reason, we propose a variable frequency energy-saving circulating water pump. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a variable frequency energy-saving circulating water pump, which further reduces the water flow resistance, improves the operating efficiency and also reduces the energy consumption. The entire frequency modulation work is easy to operate in practice, and the operator can use it without additional training. The assembly process is simplified, the installation time is reduced, and the assembly and disassembly are convenient, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a variable frequency energy-saving circulating water pump, comprising a base, a motor is arranged on the left side of the upper end of the base, a connecting frame is arranged on the right end of the motor, the right end of the connecting frame is hinged to the pump body, a drain pipe and a water inlet pipe are arranged in the drain port opened on the upper side of the outer arc surface of the pump body and the water inlet opened in the middle of the right end, respectively, an impeller is rotatably connected to the middle of the left wall of the pump body, the right end of the motor and the left end of the impeller are connected through a coupling, an installation box is arranged on the left side of the front end of the base, a box door is hinged on the front end of the installation box, and the cleaning mechanism, the adjustment mechanism and the fixing mechanism are also included;

[0007] Cleaning mechanism: It includes a mounting rod, a connecting arm and a percussion hammer. The mounting rods are rotatably connected to the upper side of the base. The front and rear sides of the outer arc surface of the mounting rod are respectively provided with connecting arms. The upper ends of the connecting arms are provided with percussion hammers. The upper ends of the percussion hammers are in contact with the outer arc surface of the pump body.

[0008] Adjustment mechanism: it is arranged inside the installation box;

[0009] Fixing mechanism: It is arranged on the outside of the connecting frame. The fixing mechanism is fixedly connected to the left side of the outer arc surface of the drain pipe, which further reduces the water flow resistance, improves the operation efficiency and reduces the energy consumption. The whole frequency modulation work is easy to operate. The operator can use it without additional training, which simplifies the assembly process, reduces the installation time and facilitates assembly and disassembly.

[0010] Furthermore, it also includes a control switch group, which is arranged at the front end of the box door. The input end of the control switch group is electrically connected to the external power supply and can regulate the electrical components inside the equipment.

[0011] Furthermore, the cleaning mechanism also includes a cross bar, a push plate, a return spring, an adjusting motor and a cam, the cross bars are respectively arranged on the upper side of the left wall of the base, the right ends of the two cross bars are respectively provided with limit plates, the cross bars are respectively slidably connected with the avoidance grooves corresponding to the left ends of the push plates, the left sides of the upper ends of the connecting arms are in contact with the lower ends of the push plates, and return springs are provided between the right ends of the push plates and the left ends of the limit plates, and the return springs are both sleeved on the outside of the right side of the cross bar, the adjusting motor is arranged in the middle of the upper end of the base, the adjusting motor is located on the lower side of the motor, a cam is provided at the lower end of the output shaft of the adjusting motor, the left end of the push plate is in contact with the outer arc surface of the cam, the input end of the adjusting motor is electrically connected to the output end of the control switch group, and the position of the striking hammer can be adjusted.

[0012] Furthermore, the adjustment mechanism includes a vertical pole, a resistance coil, an adjustment seat, a base, a hexagonal sliding column and a conductive column. The vertical pole is arranged on the right side of the bottom wall of the installation box, and the middle part of the outer arc surface of the vertical pole is wound with a resistance coil. An adjustment seat is provided on the left side of the interior of the installation box, and a connecting rod is rotatably connected to the front side of the adjustment seat. A base is provided on the rear side of the right end of the adjustment seat, and a hexagonal sliding column is slidably connected in a slide groove provided in the middle part of the right end of the base. A baffle is provided at the left end of the hexagonal sliding column, and a conductive column is provided at the right end of the hexagonal sliding column. The right end of the conductive column contacts the outer arc surface of the resistance coil, the input end of the conductive column is electrically connected to the output end of the control switch group, the input end of the resistance coil is electrically connected to the output end of the conductive column, and the input end of the motor is electrically connected to the output end of the resistance coil, so as to adjust the operating speed of the variable frequency energy-saving circulating water pump.

[0013] Furthermore, the adjustment mechanism also includes a fixing rod, a rack plate and a gear. The fixing rod is arranged on the left side of the bottom wall of the installation box, a rack plate is arranged on the front side of the outer arc surface of the fixing rod, an adjustment seat is slidably connected to the lower side of the outer arc surface of the fixing rod, and a gear is arranged in the middle part of the outer arc surface of the connecting rod. The gear is meshed with the rack plate and can adjust the position of the conductive column.

[0014] The cam is secured to the upper edge of the frame, and the cam is secured to the lower edge of the frame with a spring, which is secured to the upper edge of the frame by a spring.

[0015] Furthermore, a spring is arranged between the right wall of the base and the right end of the baffle, and the spring is sleeved on the outside of the left side of the hexagonal sliding column. The conductive column can always be in contact with the resistance coil under the influence of the elastic potential energy of the spring, ensuring normal conduction of the electrical circuit.

[0016] Furthermore, a driving motor is arranged on the left side of the upper end of the adjusting seat, a worm is arranged on the lower end of the output shaft of the driving motor, a worm wheel is arranged on the left side of the outer arc surface of the connecting rod, the worm wheel and the worm wheel are meshingly connected, the input end of the driving motor is electrically connected to the output end of the control switch group, and can drive the gear to rotate through the connecting rod.

[0017] Furthermore, a screw is rotatably connected to the front side of the fixing plate, an adjusting knob is provided at the left end of the screw, an adjusting plate is slidably connected to the middle of the front wall of the mounting seat, the adjusting plate is threadedly connected to the left side of the outer arc surface of the screw through a threaded hole provided in the middle of its left end, a limiting rod is provided at the rear end of the adjusting plate, the rear end of the limiting rod is located inside the limiting groove, and can drive the transmission plate to rotate.

[0018] Furthermore, it also includes a torsion spring, which is movably sleeved on the rear side of the outer arc surface of the mounting rod, the rear end of the torsion spring is fixedly connected to the rear wall of the base, and the front end of the torsion spring is fixedly connected to the outer arc surface of the mounting rod. The torsion spring can drive the connecting arm to rotate and reset through the mounting rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the variable frequency energy-saving circulating water pump has the following advantages:

[0020] 1. The hammer reciprocates to shake off the scale, corrosion or sediment accumulation in the pump body, and the debris will flow out with the water, solving the problem of reducing the cross-sectional area of ​​the water flow channel due to scale or sediment, further reducing water flow resistance, improving operating efficiency and reducing energy consumption.

[0021] 2. By changing the contact point between the conductive column and the resistance coil, the resistance value in the circuit is changed, thereby adjusting the operating speed of the variable frequency energy-saving circulating water pump, replacing the traditional method of adjusting the output power of the variable frequency energy-saving circulating water pump through a frequency converter. The cost is low and the subsequent maintenance is also relatively simple. The entire frequency modulation work is easy to operate and the operator can use it without additional training.

[0022] 3. By rotating the pump body first, aligning the left end of the impeller with the right end of the motor output shaft, and then plugging the plug rod into the socket, the pump body can be installed and fixed, replacing the traditional method of assembling and fixing the motor and pump body through bolt connection, simplifying the assembly process, reducing installation time, and facilitating assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the front plane structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the front side cross-sectional structure of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the regulating mechanism of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the cleaning mechanism of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0029] Figure 7 It is a schematic diagram of the internal structure of the mounting base of the present invention.

[0030] In the figure: 1 base, 2 motor, 3 connecting frame, 4 pump body, 5 cleaning mechanism, 51 mounting rod, 52 connecting arm, 53 knock hammer, 54 cross bar, 55 push plate, 56 reset spring, 57 adjusting motor, 58 cam, 6 control switch group, 7 adjusting mechanism, 71 vertical rod, 72 resistance coil, 73 fixing rod, 74 rack plate, 75 adjusting seat, 76 gear, 77 base, 78 hexagonal sliding column, 79 conductive column, 8 fixing mechanism, 81 fixing plate, 82 mounting seat, 83 connecting plate, 84 plug rod, 85 connecting seat, 86 fixing seat, 87 transmission rod, 88 adjusting rod, 9 impeller, 10 water inlet pipe, 11 drain pipe, 12 driving motor, 13 spring, 14 worm gear, 15 worm, 16 torsion spring, 17 adjusting knob, 18 screw, 19 adjusting plate, 20 limit rod, 21 installation box. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-7 , this embodiment provides a technical solution: a variable frequency energy-saving circulating water pump, including a base 1, a motor 2 is arranged on the left side of the upper end of the base 1, a connecting frame 3 is arranged on the right end of the motor 2, the right end of the connecting frame 3 is hinged to the pump body 4, a drain pipe 11 and a water inlet pipe 10 are respectively arranged in the drain port opened on the upper side of the outer arc surface of the pump body 4 and the water inlet opened in the middle of the right end, an impeller 9 is rotatably connected to the middle of the left wall of the pump body 4, the right end of the motor 2 and the left end of the impeller 9 are connected through a coupling, an installation box 1 is arranged on the left side of the front end of the base 1, a box door is hinged at the front end of the installation box 1, and a cleaning mechanism 5, an adjustment mechanism 7 and a fixing mechanism 8 are also included;

[0033] Cleaning mechanism 5: It includes a mounting rod 51, a connecting arm 52 and a percussion hammer 53. The mounting rod 51 is rotatably connected to the upper side of the inside of the base 1. The front and rear sides of the outer arc surface of the mounting rod 51 are respectively provided with connecting arms 52. The upper ends of the connecting arms 52 are provided with percussion hammers 53. The upper ends of the percussion hammers 53 are in contact with the outer arc surface of the pump body 4. The cleaning mechanism 5 also includes a cross bar 54, a push plate 55, a reset spring 56, an adjustment motor 57 and a cam 58. The cross bars 54 are respectively arranged on the upper side of the left wall of the base 1. The right ends of the two cross bars 54 are provided with limit plates. The cross bars 54 are respectively slidably connected with the avoidance grooves corresponding to the left ends of the push plates 55. The left sides of the upper ends of the connecting arms 52 are in contact with the lower ends of the push plates 55. The right ends of the push plates 55 are in contact with the limit plates. A return spring 56 is provided between the left ends of the position plates, and the return springs 56 are sleeved on the outside of the right side of the cross bar 54. The adjusting motor 57 is provided in the middle of the upper end of the base 1, and the adjusting motor 57 is located at the lower side of the motor 2. A cam 58 is provided at the lower end of the output shaft of the adjusting motor 57. The left end of the push plate 55 contacts the outer arc surface of the cam 58. The input end of the adjusting motor 57 is electrically connected to the output end of the control switch group 6, driving the striking hammer 53 to reciprocate, thereby shaking off the scaling, corrosion or sediment accumulation in the pump body 4, and finally the debris can flow out with the water flow, solving the problem of reducing the cross-sectional area of ​​the water flow channel due to scaling or sediment, further reducing the water flow resistance, improving the operation efficiency and reducing the energy consumption;

[0034] Adjustment mechanism 7: It is arranged inside the installation box 21, and the adjustment mechanism 7 includes a vertical rod 71, a resistance coil 72, an adjustment seat 75, a base 77, a hexagonal sliding column 78 and a conductive column 79. The vertical rod 71 is arranged on the right side of the bottom wall of the installation box 21, and the middle part of the outer arc surface of the vertical rod 71 is wound with the resistance coil 72. The left side of the installation box 21 is provided with an adjustment seat 75, and the front side of the adjustment seat 75 is rotatably connected with a connecting rod. The rear side of the right end of the adjustment seat 75 is provided with a base 77, and the hexagonal sliding column 78 is slidably connected in the sliding groove provided in the middle part of the right end of the base 77. The left end of the hexagonal sliding column 78 is provided with a baffle, and the right end of the hexagonal sliding column 78 is provided with a conductive column 79. The right end of the conductive column 79 contacts the outer arc surface of the resistance coil 72, and the input end of the conductive column 79 is electrically connected to the output end of the control switch group 6. The input end of the resistance coil 72 is electrically connected to the conductive column 79. 9, the output end of the motor 2 is electrically connected to the output end of the resistance coil 72, the adjustment mechanism 7 also includes a fixed rod 73, a rack plate 74 and a gear 76, the fixed rod 73 is arranged on the left side of the bottom wall of the installation box 21, the front side of the outer arc surface of the fixed rod 73 is provided with a rack plate 74, the lower side of the outer arc surface of the fixed rod 73 is slidably connected with an adjustment seat 75, the middle part of the outer arc surface of the connecting rod is provided with a gear 76, the gear 76 is meshed and connected with the rack plate 74, the contact point between the conductive column 79 and the resistance coil 72 is changed, so that the resistance value in the circuit is changed, thereby adjusting the running speed of the variable frequency energy-saving circulating water pump, replacing the traditional method of adjusting the output power of the variable frequency energy-saving circulating water pump by a frequency converter, the cost is low and the subsequent maintenance is also simple, easy to use, and the operator may need additional training to use it;

[0035] Fixing mechanism 8: It is arranged on the outside of the connecting frame 3, and the fixing mechanism 8 is fixedly connected to the left side of the outer arc surface of the drain pipe 11. The fixing mechanism 8 includes a fixing plate 81, a mounting seat 82, a connecting plate 83, a plug rod 84, a connecting seat 85, a fixing seat 86, a transmission rod 87 and an adjusting rod 88. The mounting seat 82 is connected to the upper side of the outer arc surface of the connecting frame 3, and the sliding holes arranged on the right side of the upper end of the mounting seat 82 are respectively slidably connected with the plug rods 84, and the lower ends of the plug rods 84 are fixedly connected to the upper end of the connecting plate 83. The fixing plate 81 is fixedly connected to the left side of the outer arc surface of the drain pipe 11, and the left side of the lower end of the fixing plate 81 is respectively provided with sockets. The three plug rods 84 are respectively installed in cooperation with the vertically adjacent sockets, and the connecting seat 8 5 is arranged in the middle of the lower end of the connecting plate 83, the front end of the connecting plate 83 is provided with an adjustment groove, the fixing seat 86 is arranged on the lower side of the left wall of the mounting seat 82, the right end of the fixing seat 86 is rotatably connected with a transmission rod 87, the middle part of the front end of the transmission rod 87 is provided with a limit groove, the right end of the transmission rod 87 is provided with an adjustment rod 88, and the adjustment rod 88 is located inside the adjustment groove. Before use, the pump body 4 is rotated first to align the left end of the impeller 9 with the right end of the output shaft of the motor 2, and then the insertion rod 84 is plugged into the jack, thereby realizing the installation and fixing of the pump body 4, replacing the traditional method of assembling and fixing the motor 2 and the pump body 4 by bolt connection, simplifying the assembly process, reducing the installation time, and facilitating assembly and disassembly.

[0036] Among them: it also includes a control switch group 6, which is arranged at the front end of the box door. The input end of the control switch group 6 is electrically connected to the external power supply and can regulate the electrical components inside the equipment.

[0037] Among them: a spring 13 is arranged between the right wall of the base 77 and the right end of the baffle, and the spring 13 is sleeved on the outside of the left side of the hexagonal sliding column 78. The conductive column 79 can always be in contact with the resistance coil 72 under the influence of the elastic potential energy of the spring 13 to ensure normal conduction of the electrical circuit.

[0038] Among them: a driving motor 12 is arranged on the left side of the upper end of the adjustment seat 75, a worm 15 is arranged on the lower end of the output shaft of the driving motor 12, and a worm wheel 14 is arranged on the left side of the outer arc surface of the connecting rod. The worm wheel 14 and the worm 15 are meshingly connected. The input end of the driving motor 12 is electrically connected to the output end of the control switch group 6. Through the regulation of the control switch group 6, the driving motor 12 starts to run, and the output shaft of the driving motor 12 drives the worm 15 to rotate. The worm 15 drives the worm wheel 14 to rotate through the meshing connection. The worm wheel 14 drives the gear 76 to rotate through the connecting rod. During the rotation of the gear 76, the conductive column 79 is driven to move through the meshing connection between the gear 76 and the rack plate 74.

[0039] Among them: the front side of the fixed plate 81 is rotatably connected with a screw rod 18, and the left end of the screw rod 18 is provided with an adjusting knob 17. The middle part of the front wall of the mounting seat 82 is slidably connected with an adjusting plate 19. The adjusting plate 19 is threadedly connected to the left side of the outer arc surface of the screw rod 18 through a threaded hole provided in the middle part of its left end. A limiting rod 20 is provided at the rear end of the adjusting plate 19, and the rear end of the limiting rod 20 is located inside the limiting groove. When the operator rotates the adjusting knob 17, the adjusting knob 17 drives the screw rod 18 to rotate. During the rotation process, the screw 18 drives the adjusting plate 19 to move to the left through the threaded connection. At this time, the limiting rod 20 slides inside the limiting groove and rotates relative to the limiting groove, so that the adjusting plate 19 drives the transmission plate 87 to rotate through the limiting rod 20.

[0040] Among them: it also includes a torsion spring 16, which is movably mounted on the rear side of the outer arc surface of the mounting rod 51, the rear end of the torsion spring 16 is fixedly connected to the rear wall of the base 1, and the front end of the torsion spring 16 is fixedly connected to the outer arc surface of the mounting rod 51. The torsion spring 16 can drive the connecting arm 52 to rotate and reset through the mounting rod 51, and the connecting arm 52 drives the striking hammer 53 to rotate and reset.

[0041] The working principle of a variable frequency energy-saving circulating water pump provided by the present invention is as follows: before use, the pump body 4 is rotated first to align the left end of the impeller 9 with the right end of the output shaft of the motor 2, and then the operator rotates the adjusting knob 17, and the adjusting knob 17 drives the screw 18 to rotate. During the rotation process, the screw 18 drives the adjusting plate 19 to move to the left through the threaded connection. At this time, the limit rod 20 slides inside the limit groove and rotates relative to the limit groove, so that the adjusting plate 19 drives the transmission plate 87 to rotate through the limit rod 20. During the rotation of the transmission rod 87, the adjusting rod 88 slides inside the adjusting groove and rotates relative to the adjusting groove, so that the adjusting rod 88 drives the connecting plate 83 to move upward through the connecting seat 85, and the connecting plate 83 drives the plug rod 84 to move Move up, and finally connect the plug rod 84 with the socket to achieve the installation and fixation of the pump body 4, and then connect the output shaft of the motor 2 with the impeller 9 through the connector, and finally connect the water inlet pipe 10 and the drain pipe 11 with the external pipeline. During the operation of the variable frequency energy-saving circulating water pump, through the regulation of the control switch group 6, the motor 2 starts to run, and the output shaft of the motor 2 drives the impeller 9 to rotate. When the impeller 9 rotates, a low-pressure area will be formed inside the pump body 4. At this time, the water in the external pipeline enters the inside of the pump body 4 through the water inlet pipe 10. After the water enters the pump body 4, it gains speed and kinetic energy as the impeller 9 rotates, and finally it can be discharged through the drain pipe 11. When it is necessary to adjust the operating speed of the variable frequency energy-saving circulating water pump, the control switch group 6 is controlled. , the driving motor 12 starts to run, the output shaft of the driving motor 12 drives the worm 15 to rotate, the worm 15 drives the worm wheel 14 to rotate through the meshing connection, and the worm wheel 14 drives the gear 76 to rotate through the connecting rod. During the rotation of the gear 76, the conductive column 79 is driven to move through the meshing connection between the gear 76 and the rack plate 74, and the conductive column 79 is affected by the elastic potential energy of the spring 13 and can always contact with the resistance coil 72 to ensure the normal conduction of the electrical circuit, thereby changing the contact point between the conductive column 79 and the resistance coil 72, so that the resistance value in the circuit changes, thereby adjusting the running speed of the variable frequency energy-saving circulating water pump. When scaling, corrosion or sediment accumulation inside the pump body 4 causes the efficiency of the variable frequency energy-saving circulating water pump to decrease When the pump body 4 is lowered, the regulating motor 57 starts to run through the control of the switch group 6, and the output shaft of the regulating motor 57 drives the cam 58 to rotate. When the contact point between the cam 58 and the push plate 55 changes from proximal to distal, the push plate 55 begins to move rightward by the thrust of the cam 58, and the return spring 56 contracts. At this time, the connecting plate 52 begins to rotate upward with the mounting rod 51 as the center by the thrust of the push plate 55, and the torsion spring 16 is twisted. Finally, the outer surface of the pump body 4 is struck by the striker 53. When the contact point between the cam 58 and the push plate 55 changes from distal to proximal, the thrust generated by the extension of the return spring 56 begins to drive the push plate 55 to move leftward and reset, and the torsion spring 16 drives the connecting arm 52 to rotate and reset through the mounting rod 51.The connecting arm 52 drives the hammer 53 to rotate downward and reset, and drives the hammer 53 to reciprocate, thereby shaking off the scale, corrosion or sediment accumulation in the pump body 4, and finally the debris flows out with the water.

[0042] It is worth noting that, as disclosed in the above embodiments, the motor 2 can use ECMA-C20604RS, the drive motor 12 and the adjustment motor 57 can use 5IK200A-AF, and the control switch group 6 is provided with control buttons corresponding to the motor 2, the adjustment motor 57 and the drive motor 12 for controlling their switches.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A variable frequency energy-saving circulating water pump, comprising a base (1), a motor (2) is arranged on the left side of the upper end of the base (1), a connecting frame (3) is arranged on the right end of the motor (2), the right end of the connecting frame (3) is hinged to a pump body (4), a drain pipe (11) and a water inlet pipe (10) are arranged in a drain port opened on the upper side of the outer arc surface of the pump body (4) and a water inlet opened in the middle of the right end, respectively, an impeller (9) is rotatably connected to the middle of the left wall of the pump body (4), the right end of the motor (2) and the left end of the impeller (9) are connected via a coupling, an installation box (1) is arranged on the left side of the front end of the base (1), and a box door is hinged at the front end of the installation box (1), characterized in that: It also includes a cleaning mechanism (5), an adjusting mechanism (7) and a fixing mechanism (8); The cleaning mechanism (5) comprises a mounting rod (51), a connecting arm (52) and a knocking hammer (53), wherein the mounting rod (51) is rotatably connected to the upper side of the base (1), the connecting arms (52) are respectively arranged on the front and rear sides of the outer arc surface of the mounting rod (51), the upper ends of the connecting arms (52) are respectively arranged with a knocking hammer (53), and the upper ends of the knocking hammers (53) are in contact with the outer arc surface of the pump body (4); Adjustment mechanism (7): it is arranged inside the installation box (21); The fixing mechanism (8) is arranged outside the connecting frame (3), and the fixing mechanism (8) is fixedly connected to the left side of the outer arc surface of the drainage pipe (11).

2. A variable frequency energy-saving circulating water pump according to claim 1, characterized in that: It also comprises a control switch group (6), wherein the control switch group (6) is arranged at the front end of the box door, and the input end of the control switch group (6) is electrically connected to an external power supply.

3. A variable frequency energy-saving circulating water pump according to claim 2, characterized in that: The cleaning mechanism (5) further comprises a cross bar (54), a push plate (55), a return spring (56), an adjustment motor (57) and a cam (58), wherein the cross bars (54) are respectively arranged on the upper side of the left wall of the base (1), and the right ends of the two cross bars (54) are respectively provided with a limit plate, and the cross bars (54) are respectively slidably connected with the avoidance grooves correspondingly arranged at the left ends of the push plates (55), and the left side of the upper end of the connecting arm (52) is in contact with the lower end of the push plate (55), and the right end of the push plate (55) is in contact with the lower end of the push plate (55). A return spring (56) is arranged between the left ends of the limit plates, and the return spring (56) is sleeved on the outside of the right side of the cross bar (54). The adjustment motor (57) is arranged in the middle of the upper end of the base (1), and the adjustment motor (57) is located on the lower side of the motor (2). A cam (58) is arranged at the lower end of the output shaft of the adjustment motor (57). The left end of the push plate (55) contacts the outer arc surface of the cam (58), and the input end of the adjustment motor (57) is electrically connected to the output end of the control switch group (6).

4. A variable frequency energy-saving circulating water pump according to claim 2, characterized in that: The adjusting mechanism (7) comprises a vertical rod (71), a resistance coil (72), an adjusting seat (75), a base (77), a hexagonal sliding column (78) and a conductive column (79), wherein the vertical rod (71) is arranged on the right side of the bottom wall of the installation box (21), the resistance coil (72) is wound around the middle of the outer arc surface of the vertical rod (71), the adjusting seat (75) is arranged on the left side inside the installation box (21), the front side inside the adjusting seat (75) is rotatably connected with a connecting rod, the rear side of the right end of the adjusting seat (75) is arranged with a base (77), and the base (79) is arranged on the right side of the adjusting seat (75). A hexagonal sliding column (78) is slidably connected in a sliding groove arranged in the middle of the right end of 77, a baffle is arranged at the left end of the hexagonal sliding column (78), a conductive column (79) is arranged at the right end of the hexagonal sliding column (78), the right end of the conductive column (79) contacts the outer arc surface of the resistance coil (72), the input end of the conductive column (79) is electrically connected to the output end of the control switch group (6), the input end of the resistance coil (72) is electrically connected to the output end of the conductive column (79), and the input end of the motor (2) is electrically connected to the output end of the resistance coil (72).

5. A variable frequency energy-saving circulating water pump according to claim 4, characterized in that: The adjustment mechanism (7) further comprises a fixing rod (73), a rack plate (74) and a gear (76); the fixing rod (73) is arranged on the left side of the bottom wall of the installation box (21); the front side of the outer arc surface of the fixing rod (73) is provided with a rack plate (74); the lower side of the outer arc surface of the fixing rod (73) is slidably connected with an adjustment seat (75); the middle part of the outer arc surface of the connecting rod is provided with a gear (76); the gear (76) is meshedly connected with the rack plate (74).

6. A variable frequency energy-saving circulating water pump according to claim 1, characterized in that: The fixing mechanism (8) comprises a fixing plate (81), a mounting seat (82), a connecting plate (83), an insert rod (84), a connecting seat (85), a fixing seat (86), a transmission rod (87) and an adjusting rod (88); the fixing seat (82) is connected to the upper side of the outer arc surface of the connecting frame (3); the insert rods (84) are slidably connected in the sliding holes arranged on the right side of the upper end of the fixing seat (82); the lower ends of the insert rods (84) are fixedly connected to the upper end of the connecting plate (83); the fixing plate (81) is fixedly connected to the left side of the outer arc surface of the drain pipe (11); The left side of the lower end of the plate (81) is respectively provided with a plug hole, and three plug rods (84) are respectively installed in cooperation with the vertically adjacent plug holes. The connecting seat (85) is arranged at the middle part of the lower end of the connecting plate (83), and the front end of the connecting plate (83) is provided with an adjustment groove. The fixing seat (86) is arranged at the lower side of the left wall of the mounting seat (82). The right end of the fixing seat (86) is rotatably connected with a transmission rod (87), and a limiting groove is arranged in the middle part of the front end of the transmission rod (87). The right end of the transmission rod (87) is provided with an adjustment rod (88), and the adjustment rod (88) is located inside the adjustment groove.

7. A variable frequency energy-saving circulating water pump according to claim 4, characterized in that: A spring (13) is arranged between the right wall of the base (77) and the right end of the baffle, and the spring (13) is sleeved on the outside of the left side of the hexagonal sliding column (78).

8. The variable frequency energy-saving circulating water pump according to claim 5 is characterized in that: A driving motor (12) is arranged on the left side of the upper end of the adjusting seat (75), a worm (15) is arranged on the lower end of the output shaft of the driving motor (12), a worm wheel (14) is arranged on the left side of the outer arc surface of the connecting rod, the worm wheel (14) and the worm wheel (15) are meshingly connected, and the input end of the driving motor (12) is electrically connected to the output end of the control switch group (6).

9. A variable frequency energy-saving circulating water pump according to claim 6, characterized in that: The front side of the interior of the fixing plate (81) is rotatably connected with a screw rod (18), the left end of the screw rod (18) is provided with an adjusting knob (17), the middle part of the front wall of the mounting seat (82) is slidably connected with an adjusting plate (19), the adjusting plate (19) is threadedly connected to the left side of the outer arc surface of the screw rod (18) through a threaded hole provided in the middle part of the left end thereof, and a limiting rod (20) is provided at the rear end of the adjusting plate (19), and the rear end of the limiting rod (20) is located inside the limiting groove.

10. The variable frequency energy-saving circulating water pump according to claim 1, characterized in that: It also includes a torsion spring (16), which is movably sleeved on the rear side of the outer arc surface of the mounting rod (51), the rear end of the torsion spring (16) is fixedly connected to the rear wall of the base (1), and the front end of the torsion spring (16) is fixedly connected to the outer arc surface of the mounting rod (51).

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