A self-priming pump device

Abstract

The present invention discloses a self-priming pump device, which relates to the field of self-priming pumps, and includes a driving motor and a pump body, wherein a motor shaft is installed on the driving motor, and the motor shaft is connected to the pump body, and a mounting seat is installed on the bottom side of the driving motor and the pump body, and a water suction pipe and a water outlet pipe are connected to the pump body, and a water suction box is connected to the water suction pipe, and two water inlet pipes are connected to the bottom side of the water suction box, and a filter cover is installed on the bottom side of the water inlet pipe; and an automatic switching mechanism is also included. It should be noted that in an embodiment of the present invention, when the pump body is blocked, the switching cover moves to close one water inlet and open the other water inlet to ensure continuous water inlet, and if both water inlet pipes are blocked, the water inlet hole is exposed, and then water enters the water suction box through the water inlet hole, and emergency water supply is provided to the water suction box, which not only ensures the safety of the water suction pump, but also buys time for the maintenance of the water suction pump.

Description

Technical Field

[0001] The present invention relates to the technical field of self-priming pumps, and in particular to a self-priming pump device. Background Art

[0002] The self-priming pump is a self-priming centrifugal pump. It has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. The pipeline does not need to be installed with a foot valve. Before working, it is only necessary to ensure that there is a certain amount of priming liquid stored in the pump body. The working principle of the self-priming pump is that the pump casing is filled with water before the water pump is started (or there is water in the pump casing itself). After starting, the impeller rotates at a high speed to make the water in the impeller groove flow to the volute. At this time, a vacuum is formed at the inlet, so that the water inlet check valve opens, and the air in the suction pipe enters the pump and reaches the outer edge through the impeller groove.

[0003] It should be noted that during the use of self-priming pumps, due to the complex usage scenarios, the water inlet pipe is often blocked. Although there are anti-blocking devices designed on the water inlet pipe, during long-term use, with the passage of time and the accumulation of impurities, the water inlet pipe cannot be avoided from being blocked, but water cannot be replenished in time, which causes the self-priming pump to be unable to supply water continuously. As we all know, if the self-priming pump lacks water, the pump body will run idle at this time. Due to the lack of cooling effect, the internal materials of the pump will be heated due to friction and heat accumulation. When running dry, there is no liquid lubrication, and the pump parts will be in direct contact and friction, resulting in increased wear. Heating and wear may accelerate the corrosion process of the material. Dry running may also cause vibration or other abnormal phenomena in the pump body, and in extreme cases, dry running may cause complete destruction of the self-priming pump. Summary of the invention

[0004] The object of the present invention is to provide a self-priming pump device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A self-priming pump device, comprising a driving motor and a pump body, wherein a motor shaft is mounted on the driving motor, the motor shaft is connected to the pump body, a mounting seat is mounted on the bottom side of the driving motor and the pump body, a water suction pipe and a water outlet pipe are connected to the pump body, and a water suction box is connected to the water suction pipe, two water inlet pipes are connected to the bottom side of the water suction box, and a filter cover is mounted on the bottom side of the water inlet pipe;

[0007] It also includes an automatic switching mechanism, which is connected to the water outlet pipe and the water suction box, and is used to switch the water supply of the two water inlet pipes; the automatic switching mechanism includes a switching cover, which is movably installed on one side of the water suction box, and the bottom side of the water suction box is provided with two water inlets, the two water inlets are connected to the two water inlet pipes, and the switching cover closes one of the water inlets;

[0008] It also includes an active flushing mechanism, which is installed in the water suction box and is used to filter and flush the incoming water; the active flushing mechanism includes a filter plate, which is installed in the water suction box, and a cleaning rack is provided in the water suction box, and a plurality of flushing heads for flushing are installed on the top side of the cleaning rack, and a connecting water pipe for water inlet is connected to the cleaning rack;

[0009] It also includes a buffer water replenishment mechanism, which is installed on the mounting seat and is used to buffer the drive motor; the buffer water replenishment mechanism includes a base, a plurality of buffer rods are installed on the top side of the base, a plurality of buffer grooves are opened on the bottom side of the mounting seat, the plurality of buffer rods are respectively movably installed in the plurality of buffer grooves, and buffer springs are installed in the buffer grooves.

[0010] Furthermore, in a preferred embodiment of the present invention, the automatic switching mechanism further comprises a transfer box, the transfer box is mounted on the water outlet pipe, a push frame is movably mounted on the water outlet pipe, and the connecting water pipe is connected to the transfer box;

[0011] A rotating push rod is rotatably mounted on the switching cover, and the pushing frame is used to push the rotating push rod to move.

[0012] Further, in a preferred embodiment of the present invention, a driving plate is installed on the pushing frame, the driving plate is located in the adapter box, and a transfer tube is installed on one side of the adapter box;

[0013] A pull-back spring and an anti-rust sleeve are connected between the transfer box and the pushing frame, and the pull-back spring is located in the anti-rust sleeve.

[0014] Further, in a preferred embodiment of the present invention, a rotating shaft is installed on one side of the switching cover, and the rotating push rod is rotatably installed on the rotating shaft;

[0015] A telescopic slot is provided on one side of the switching cover, a clamping rod is movably installed in the telescopic slot, a clamping slot is provided on one side of the rotating push rod, one end of the clamping rod is clamped in the clamping slot, a support spring is installed on one end of the clamping rod, and the other end of the support spring is installed on the inner wall of the telescopic slot.

[0016] Furthermore, in a preferred embodiment of the present invention, the active flushing mechanism further comprises a reciprocating push frame, and the reciprocating push frame is movably mounted on the water suction box;

[0017] The cleaning frame is installed on the reciprocating push frame, and the movement of the reciprocating push frame drives the cleaning frame to move back and forth to wash the filter plate.

[0018] Furthermore, in a preferred embodiment of the present invention, an extrusion push rod is installed on the reciprocating push frame, and an extrusion head is installed at the end of the extrusion push rod;

[0019] A wedge-shaped sleeve is sleeved on the motor shaft, and the wedge-shaped sleeve rotates to push the extrusion head to move, and the reciprocating push frame is driven to move through the extrusion push rod.

[0020] Furthermore, in a preferred embodiment of the present invention, a return spring is installed on the reciprocating push frame, and the other end of the return spring is installed on the water suction box;

[0021] A sheath is connected between the reciprocating push frame and the water suction box, and the sheath is used to protect the reset spring.

[0022] Furthermore, in a preferred embodiment of the present invention, the buffer water replenishment mechanism further includes a water inlet seat, and the water inlet seat is installed on one side of the water suction box;

[0023] The water inlet seat is provided with a water inlet hole for water inlet, and a closing frame is inserted into the water inlet seat, and the closing frame is used to close the water inlet hole.

[0024] Furthermore, in a preferred embodiment of the present invention, a support frame is installed on the top side of the base, and a push-opening lever is rotatably installed on one side of the support frame, and the push-opening lever is rotated to push open the closed frame;

[0025] A limiting rod is installed on the top side of the base, and the limiting rod is used to support the top opening lever.

[0026] Furthermore, in a preferred embodiment of the present invention, two clamping blocks are installed on both inner walls of the water inlet seat, and a plurality of the clamping blocks are respectively clamped on both side edges of the closing frame.

[0027] The beneficial effects of a self-priming pump device proposed by the present invention are:

[0028] In the present invention, through the setting of the automatic switching mechanism, when absorbing water, if blockage occurs, the switching cover can be automatically moved to close one water inlet and open the other water inlet at the same time, thereby ensuring the continuous water inlet and avoiding the problem of water shortage and damage to the pump body due to blockage.

[0029] Furthermore, in the present invention, through the setting of the active flushing mechanism, when absorbing water, the incoming water can be further filtered through the filter plate to ensure the cleanliness of the incoming water, thereby ensuring the safety of the water entering the pump body. At the same time, the cleaning rack can move back and forth, so that the cleaning rack can flush the filter plate through multiple flushing heads to ensure the cleanliness of the filter plate, thereby ensuring the filtering effect of the filter plate.

[0030] Furthermore, in the present invention, by setting a buffering and water replenishing mechanism, when the water inlet of the pump body is excessively blocked, the driving motor is caused to vibrate, and under the rebound force of multiple buffer springs, it is used to buffer the vibration of the driving motor and protect the safety of the pump body; in addition, if the vibration amplitude is too large, the mounting seat squeezes the top lever to rotate, and the top lever rotates on one side of the support frame and pushes the closing frame upward. At this time, the closing frame moves up to expose the water inlet hole, and then water enters the water suction box through the water inlet hole, providing emergency water supply to the water suction box, thereby preventing the pump body from burning due to overload. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the three-dimensional structure of a self-priming pump device provided in an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of the connection between a sheath and a base and other structures of a self-priming pump device provided by an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of the structure of a self-priming pump device provided by an embodiment of the present invention, showing the connection between a driving plate and a push frame;

[0034] Figure 4 A schematic cross-sectional view of the connection between a water suction box and a switching cover and other structures of a self-priming pump device provided by an embodiment of the present invention;

[0035] Figure 5 A partial cross-sectional structural diagram of a switching cover and a rotating push rod and other structures of a self-priming pump device provided by an embodiment of the present invention;

[0036] Figure 6 A schematic structural diagram of the connection between a filter plate and a cleaning frame and other structures of a self-priming pump device provided by an embodiment of the present invention;

[0037] Figure 7 A schematic structural diagram of a cleaning frame and a flushing head connection of a self-priming pump device provided by an embodiment of the present invention;

[0038] Figure 8 A schematic diagram of the structure of the connection between a sheath and an extrusion head and other structures of a self-priming pump device provided by an embodiment of the present invention;

[0039] Fig. 9A schematic diagram of the structure of a self-priming pump device provided by an embodiment of the present invention, showing the connection between a closing frame and a top-opening lever and other structures;

[0040] Fig.10 A schematic cross-sectional view of the connection between a water inlet seat and a closing frame of a self-priming pump device provided by an embodiment of the present invention;

[0041] Fig.11 A partial cross-sectional structural schematic diagram of the connection between a base and a buffer rod and other structures of a self-priming pump device provided in an embodiment of the present invention.

[0042] In the figure: 1-driving motor; 2-pump body; 3-suction pipe; 4-water outlet pipe; 5-suction box; 6-automatic switching mechanism; 601-water inlet; 602-switching cover; 603-rotating push rod; 604-adapter box; 605-driving plate; 606-pushing frame; 607-pull-back spring; 608-adapter tube; 609-rotating shaft; 610-telescopic slot; 611-clamping rod; 612-clamping slot; 613-support spring; 614-rust-proof sleeve; 7-active flushing mechanism; 701-filter plate; 702-cleaning frame; 703-flushing Washing hair; 704-connecting water pipe; 705-reciprocating push frame; 706-reset spring; 707-sheath; 708-extrusion push rod; 709-extrusion head; 710-wedge sleeve; 8-buffer water replenishment mechanism; 801-base; 802-buffer rod; 803-buffer groove; 804-buffer spring; 805-water inlet seat; 806-water inlet hole; 807-closing frame; 808-support frame; 809-opening lever; 810-limiting rod; 811-block; 9-water inlet pipe; 10-filter cover; 11-motor shaft; 12-mounting seat. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In addition, in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0047] In addition, the terms "horizontal", "vertical", "perpendicular" and the like do not mean that the components are required to be absolutely vertical, but can be slightly tilted. For example, "vertical" only means that its direction is more vertical than "horizontal", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0048] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Please refer to the attached manual Figure 1-11 A self-priming pump device provided by an embodiment of the present invention includes a driving motor 1 and a pump body 2, a motor shaft 11 is installed on the driving motor 1, the motor shaft 11 is connected in the pump body 2, a mounting seat 12 is installed on the bottom side of the driving motor 1 and the pump body 2, a water suction pipe 3 and a water outlet pipe 4 are connected to the pump body 2, and a water suction box 5 is connected to the water suction pipe 3, two water inlet pipes 9 are connected to the bottom side of the water suction box 5, and a filter cover 10 is installed on the bottom side of the water inlet pipe 9.

[0050] More specifically, in the embodiment of the present invention, it also includes an automatic switching mechanism 6, which is connected to the water outlet pipe 4 and the water suction box 5, and is used to switch the water supply of the two water inlet pipes 9; the automatic switching mechanism 6 includes a switching cover 602, and the switching cover 602 is movably installed on one side of the water suction box 5, and two water inlets 601 are opened on the bottom side of the water suction box 5, and the two water inlets 601 are connected to the two water inlet pipes 9, and the switching cover 602 closes one water inlet 601. It should be noted that, in the embodiment of the present invention, when absorbing water, the driving motor 1 is started to rotate the motor shaft 11, thereby causing the pump body 2 to start absorbing water, and the water enters the water inlet pipe 9 through the filter cover 10, and then enters the water suction box 5. If blockage occurs, the water output of the water outlet pipe 4 is reduced. At this time, under the return force of the return spring 607, the push frame 606 is driven to move, and the push frame 606 squeezes the rotating push rod 603 to move, so that the rotating push rod 603 drives the switching cover 602 to close one water inlet 601 and open the other water inlet 601, thereby ensuring the continuous water intake.

[0051] For further information, please refer to the attached manual. Figure 2 and Figure 6-8 , a self-priming pump device provided by an embodiment of the present invention further includes an active flushing mechanism 7, which is installed in the water suction box 5, and is used to filter and flush the incoming water; the active flushing mechanism 7 includes a filter plate 701, and the filter plate 701 is installed in the water suction box 5. A cleaning rack 702 is provided in the water suction box 5, and a plurality of flushing heads 703 for flushing are installed on the top side of the cleaning rack 702, and a connecting water pipe 704 for water inlet is connected to the cleaning rack 702. It should be noted that in the embodiment of the present invention, when absorbing water, the incoming water is further filtered by the filter plate 701 to ensure the cleanliness of the incoming water and avoid the blockage of the pump body 2. At the same time, when absorbing water, the outflow of the water outlet pipe 4 enters the cleaning rack 702 through the connecting water pipe 704, and the cleaning rack 702 moves back and forth, so that the cleaning rack 702 flushes the filter plate 701 through the plurality of flushing heads 703 to ensure the cleanliness of the filter plate 701.

[0052] More specifically, it also includes a buffering water replenishment mechanism 8, which is installed on the mounting seat 12, and is used to buffer the drive motor 1; the buffering water replenishment mechanism 8 includes a base 801, and a plurality of buffer rods 802 are installed on the top side of the base 801, and a plurality of buffer grooves 803 are opened on the bottom side of the mounting seat 12, and the plurality of buffer rods 802 are respectively movably installed in the plurality of buffer grooves 803, and a buffer spring 804 is installed in the buffer groove 803. It should be noted that in the embodiment of the present invention, when the water inlet of the pump body 2 is excessively blocked, the drive motor 1 vibrates, and the slight vibration can drive the mounting seat 12 to move, so that the mounting seat 12 moves on the plurality of buffer rods 802 through the plurality of buffer grooves 803, and drives the plurality of buffer springs 804 to be stressed, and under the rebound force of the plurality of buffer springs 804, it is used to buffer the vibration of the drive motor 1, and effectively protect the safety of the drive motor 1.

[0053] For further information, please refer to the attached manual. Figure 2-5 , a self-priming pump device provided by an embodiment of the present invention, the automatic switching mechanism 6 also includes a transfer box 604, the transfer box 604 is installed on the water outlet pipe 4, a push frame 606 is movably installed on the water outlet pipe 4, and the connecting water pipe 704 is connected to the transfer box 604; in addition, a rotating push rod 603 is rotatably installed on the switching cover 602, and the push frame 606 moves to push the rotating push rod 603 to move. It should be noted that in the embodiment of the present invention, when the water suction box 5 is blocked, the water outflow of the water outlet pipe 4 is reduced. At this time, under the pull-back force of the pull-back spring 607, the push frame 606 is driven to move, and the push frame 606 squeezes the rotating push rod 603 to move, so that the rotating push rod 603 drives the switching cover 602 to close one water inlet 601 and open the other water inlet 601, thereby ensuring the continuous water inflow.

[0054] More specifically, in the embodiment of the present invention, a driving plate 605 is installed on the push frame 606, the driving plate 605 is located in the transfer box 604, and a transfer tube 608 is installed on one side of the transfer box 604; a return spring 607 and an anti-rust sleeve 614 are connected between the transfer box 604 and the push frame 606, and the return spring 607 is located in the anti-rust sleeve 614. It should be noted that in the embodiment of the present invention, when the pump body 2 discharges water through the water outlet pipe 4, the high-pressure water flushes the driving plate 605, so that the driving plate 605 pushes the push frame 606 to move, and pulls the return spring 607 to be stressed, and the anti-rust sleeve 614 closes the return spring 607 to prevent the return spring 607 from rusting.

[0055] Please continue to refer to the instruction manual Figure 2-5To be more specific, in the embodiment of the present invention, a rotating shaft 609 is installed on one side of the switching cover 602, and the rotating push rod 603 is rotatably installed on the rotating shaft 609; in addition, a telescopic groove 610 is opened on one side of the switching cover 602, and a clamping rod 611 is movably installed in the telescopic groove 610, and a clamping groove 612 is opened on one side of the rotating push rod 603, one end of the clamping rod 611 is clamped in the clamping groove 612, and a support spring 613 is installed on one end of the clamping rod 611, and the other end of the support spring 613 is installed on the inner wall of the telescopic groove 610. It should be noted that, in the embodiment of the present invention, the rotating push rod 603 is rotated so that the rotating push rod 603 squeezes the locking rod 611, and the locking rod 611 is forced to retract into the telescopic slot 610, and drives the support spring 613 to contract. When the locking rod 611 corresponds to the locking slot 612, under the rebound force of the support spring 613, the locking rod 611 is stuck in the locking slot 612, and then the rotating push rod 603 and the switching cover 602 are fixed on the same horizontal line, so that the pushing frame 606 can drive the switching cover 602 to move by pushing the rotating push rod 603.

[0056] For further information, please refer to the attached manual. Figure 2 and Figure 6-8 In a self-priming pump device provided in an embodiment of the present invention, the active flushing mechanism 7 further includes a reciprocating push frame 705, which is movably mounted on the water suction box 5; a cleaning frame 702 is mounted on the reciprocating push frame 705, and the reciprocating push frame 705 moves to drive the cleaning frame 702 to move back and forth to flush the filter plate 701. It should be noted that in the embodiment of the present invention, when the water suction box 5 absorbs water, the reciprocating push frame 705 moves back and forth, so that the cleaning frame 702 drives multiple flushing heads 703 to flush the filter plate 701, thereby ensuring the normal water absorption of the water suction box 5, and further ensuring the safety of the pump body 2.

[0057] Please continue to refer to the instruction manual Figure 2 and Figure 6-8 , more specifically, in the embodiment of the present invention, an extrusion push rod 708 is installed on the reciprocating push frame 705, and an extrusion head 709 is installed at the end of the extrusion push rod 708;

[0058] In addition, a wedge-shaped sleeve 710 is sleeved on the motor shaft 11, and the wedge-shaped sleeve 710 rotates to push the extrusion head 709 to move, and drives the reciprocating push frame 705 to move through the extrusion push rod 708. It should be noted that in the embodiment of the present invention, during the continuous rotation of the motor shaft 11, the motor shaft 11 drives the wedge-shaped sleeve 710 to rotate, and then the wedge-shaped sleeve 710 squeezes the extrusion head 709 to move, and the extrusion head 709 drives the reciprocating push frame 705 to move through the extrusion push rod 708, and the reciprocating push frame 705 drives the cleaning frame 702 to move, so that the cleaning frame 702 flushes the filter plate 701 through multiple flushing heads 703 to ensure the cleanliness of the filter plate 701.

[0059] Please refer to the instruction manual Figure 9-11 , more specifically, in the embodiment of the present invention, a reset spring 706 is installed on the reciprocating push frame 705, and the other end of the reset spring 706 is installed on the water suction box 5; in addition, a sheath 707 is connected between the reciprocating push frame 705 and the water suction box 5, and the sheath 707 is used to protect the reset spring 706. It should be noted that in the embodiment of the present invention, the reset spring 706 is provided to help the reciprocating push frame 705 to reset, realize the reciprocating movement of the reciprocating push frame 705, and the reset spring 706 is sealed by the sheath 707 to prevent the reset spring 706 from rusting.

[0060] For further information, please refer to the attached manual. Figure 9-11 In a self-priming pump device provided in an embodiment of the present invention, the buffer water replenishment mechanism 8 also includes a water inlet seat 805, which is installed on one side of the water suction box 5; in addition, a water inlet hole 806 for water inlet is provided on the water inlet seat 805, and a closing frame 807 is inserted into the water inlet seat 805, and the closing frame 807 is used to close the water inlet hole 806. It should be noted that in the embodiment of the present invention, when the two water inlet pipes 9 on the bottom side of the water suction box 5 are blocked, the closing frame 807 is automatically opened, and temporary emergency water replenishment is performed through the water inlet hole 806, so as to avoid the problem of damage to the drive motor 1 due to idling due to water outage.

[0061] More specifically, in the embodiment of the present invention, a support frame 808 is installed on the top side of the base 801, and a push-up lever 809 is rotatably installed on one side of the support frame 808, and the push-up lever 809 is rotated to push up the closing frame 807; in addition, a limiting rod 810 is installed on the top side of the base 801, and the limiting rod 810 is used to support the push-up lever 809. It should be noted that in the embodiment of the present invention, when the vibration amplitude of the driving motor 1 is too large due to lack of water, the mounting seat 12 squeezes the push-up lever 809 to rotate, and the push-up lever 809 rotates on one side of the support frame 808 and pushes the closing frame 807 upward. At this time, the closing frame 807 moves up to expose the water inlet hole 806, and then water enters the water suction box 5 through the water inlet hole 806, and provides emergency water supply to the water suction box 5, thereby preventing the pump body 2 from burning due to overload.

[0062] Please continue to refer to the instruction manual Figure 9-11 More specifically, in the embodiment of the present invention, two clamping blocks 811 are installed on both inner walls of the water inlet seat 805, and the multiple clamping blocks 811 are respectively clamped on the two side edges of the closed frame 807. It should be noted that in the embodiment of the present invention, when the closed frame 807 is lifted, the closed frame 807 is clamped on the two clamping blocks 811 at the corresponding positions, so that the position of the closed frame 807 is easy to locate, ensuring that the water suction box 5 can effectively inlet water.

[0063] In summary, the working principle of a self-priming pump device provided by an embodiment of the present invention is:

[0064] When absorbing water, the driving motor 1 is started to rotate the motor shaft 11, thereby causing the pump body 2 to start absorbing water. The water enters the water inlet pipe 9 through the filter cover 10, then enters the water suction box 5, and is filtered again by the filter plate 701, and then enters the pump body 2 through the water suction pipe 3 to ensure the cleanliness of the incoming water; then the water passes through the pump body 2 and is output through the water outlet pipe 4. At this time, the high-pressure water flushes the driving plate 605, so that the driving plate 605 pushes the pushing frame 606 to move, and then rotates the rotating push rod 603, so that the rotating push rod 603 squeezes the clamping rod 611, and the clamping rod 611 is forced to retract into the telescopic groove 610, and drives the supporting spring 613 to contract. When 611 corresponds to the card slot 612, under the resilience of the support spring 613, the card rod 611 is stuck in the card slot 612, so that the rotating push rod 603 and the switching cover 602 are fixed on the same horizontal line, and at the same time, when the push frame 606 moves, the pull-back spring 607 is stretched. If a blockage occurs at this time, the water outflow of the water outlet pipe 4 is reduced. At this time, under the pull-back force of the pull-back spring 607, the push frame 606 is driven to move, and the push frame 606 squeezes the rotating push rod 603 to move, so that the rotating push rod 603 drives the switching cover 602 to close one water inlet 601 and open the other water inlet 601, thereby ensuring the continuous water inflow;

[0065] Furthermore, during the continuous rotation of the motor shaft 11, the motor shaft 11 drives the wedge-shaped sleeve 710 to rotate, and then the wedge-shaped sleeve 710 squeezes the extrusion head 709 to move, and the extrusion head 709 drives the reciprocating push frame 705 to move through the extrusion push rod 708, and the reciprocating push frame 705 drives the cleaning frame 702 to move, so that the cleaning frame 702 rinses the filter plate 701 through multiple flushing heads 703 to ensure the cleanliness of the filter plate 701; in addition, when the reciprocating push frame 705 moves, the extrusion reset spring 706 is stressed, so when the wedge-shaped sleeve 710 continues to rotate, under the reaction force of the reset spring 706, the reciprocating push frame 705 is driven to reset, so that when the wedge-shaped sleeve 710 rotates one circle, the reciprocating push frame 705 drives the cleaning frame 702 to move back and forth once, and the filter plate 701 is fully cleaned;

[0066] Furthermore, when the water inlet of the pump body 2 is excessively blocked, the drive motor 1 vibrates, and the slight vibration can drive the mounting seat 12 to move, so that the mounting seat 12 moves on the multiple buffer rods 802 through the multiple buffer grooves 803, and drives the multiple buffer springs 804 to be stressed. Under the rebound force of the multiple buffer springs 804, it is used to buffer the vibration of the drive motor 1. If the vibration amplitude is too large, the mounting seat 12 squeezes the top lever 809 to rotate, and the top lever 809 rotates on one side of the support frame 808 and pushes the closing frame 807 upward. At this time, the closing frame 807 moves up to expose the water inlet hole 806, and then allows water to enter the water suction box 5 through the water inlet hole 806, so as to provide emergency water supply to the water suction box 5 and prevent the pump body 2 from burning due to overload.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-priming pump device, characterized in that: It includes a driving motor and a pump body, the driving motor is equipped with a motor shaft, the motor shaft is connected to the pump body, the driving motor and the bottom side of the pump body are equipped with a mounting seat, the pump body is connected with a water suction pipe and a water outlet pipe, and the water suction pipe is connected with a water suction box, the bottom side of the water suction box is connected with two water inlet pipes, and the bottom side of the water inlet pipe is equipped with a filter cover; It also includes an automatic switching mechanism, which is connected to the water outlet pipe and the water suction box, and is used to switch the water supply of the two water inlet pipes; the automatic switching mechanism includes a switching cover, which is movably installed on one side of the water suction box, and the bottom side of the water suction box is provided with two water inlets, the two water inlets are connected to the two water inlet pipes, and the switching cover closes one of the water inlets; It also includes an active flushing mechanism, which is installed in the water suction box and is used to filter and flush the incoming water; the active flushing mechanism includes a filter plate, which is installed in the water suction box, and a cleaning rack is provided in the water suction box, and a plurality of flushing heads for flushing are installed on the top side of the cleaning rack, and a connecting water pipe for water inlet is connected to the cleaning rack; It also includes a buffer water replenishment mechanism, which is installed on the mounting seat and is used to buffer the drive motor; the buffer water replenishment mechanism includes a base, a plurality of buffer rods are installed on the top side of the base, a plurality of buffer grooves are opened on the bottom side of the mounting seat, a plurality of buffer rods are movably installed in the plurality of buffer grooves, and a buffer spring is installed in the buffer groove; The automatic switching mechanism further comprises a transfer box, which is mounted on the water outlet pipe, a push frame is movably mounted on the water outlet pipe, and the connecting water pipe is connected to the transfer box; A rotating push rod is rotatably mounted on the switching cover, and the pushing frame is used to push the rotating push rod to move; A driving plate is installed on the pushing frame, the driving plate is located in the transfer box, and a transfer tube is installed on one side of the transfer box; A pull-back spring and an anti-rust sleeve are connected between the transfer box and the push frame, and the pull-back spring is located in the anti-rust sleeve; A rotating shaft is installed on one side of the switching cover, and the rotating push rod is rotatably installed on the rotating shaft; A telescopic slot is provided on one side of the switching cover, a clamping rod is movably installed in the telescopic slot, a clamping slot is provided on one side of the rotating push rod, one end of the clamping rod is clamped in the clamping slot, a support spring is installed on one end of the clamping rod, and the other end of the support spring is installed on the inner wall of the telescopic slot.

2. A self-priming pump device according to claim 1, characterized in that: The active flushing mechanism also includes a reciprocating push frame, which is movably mounted on the water suction box; The cleaning frame is installed on the reciprocating push frame, and the movement of the reciprocating push frame drives the cleaning frame to move back and forth to wash the filter plate.

3. A self-priming pump device according to claim 2, characterized in that: An extrusion push rod is installed on the reciprocating push frame, and an extrusion head is installed at the end of the extrusion push rod; A wedge-shaped sleeve is sleeved on the motor shaft, and the wedge-shaped sleeve rotates to push the extrusion head to move, and the reciprocating push frame is driven to move through the extrusion push rod.

4. A self-priming pump device according to claim 3, characterized in that: A return spring is installed on the reciprocating push frame, and the other end of the return spring is installed on the water suction box; A sheath is connected between the reciprocating push frame and the water suction box, and the sheath is used to protect the reset spring.

5. A self-priming pump device according to claim 1, characterized in that: The buffer water replenishment mechanism also includes a water inlet seat, which is installed on one side of the water suction box; The water inlet seat is provided with a water inlet hole for water inlet, and a closing frame is inserted into the water inlet seat, and the closing frame is used to close the water inlet hole.

6. A self-priming pump device according to claim 5, characterized in that: A support frame is installed on the top side of the base, and a push-up lever is rotatably installed on one side of the support frame, and the push-up lever is rotated to push open the closed frame; A limiting rod is installed on the top side of the base, and the limiting rod is used to support the top opening lever.

7. A self-priming pump device according to claim 6, characterized in that: Two clamping blocks are installed on both inner walls of the water inlet seat, and a plurality of the clamping blocks are respectively clamped on the two side edges of the closed frame.

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