Negative pressure flow control water pump
By designing a negative pressure controlled flow water pump in the water dispenser, the water supply mechanism is used to cut off the water source at the inlet end, the problem of pressure water leakage when the diaphragm water pump is not working, reducing costs and improving the purification effect of the equipment.
Patent Information
- Application Number
- CN202421139095.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-05-23
AI Technical Summary
When the diaphragm water pump in existing water dispensers is not working, the pressure water source may flow out through the pump body, resulting in water leakage and increasing equipment costs.
A negative pressure controlled flow water pump is designed. By setting the water inlet pipe and the water outlet pipe between the side walls of the pump body, and a water supply mechanism is set up in the pump body, including an elastic sealing component and a control component, the water source can be cut off at the inlet end and water leakage can be avoided.
When the pump pump is not working, it effectively prevents water from flowing out through the pump body, reduces equipment costs, and ensures the normal operation of the water supply mechanism through negative pressure control to avoid water reflux and bacterial contamination.
Smart Images
Figure CN222823371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water pumps, in particular to a negative pressure flow-controlled water pump. Background Art
[0002] Most household water dispensers use diaphragm pumps to deliver and pressurize filtered drinking water. A micro diaphragm pump is a diaphragm-type micro pump with a water inlet and a water outlet on its pump body. However, when a water dispenser is currently connected to a pressurized water source, when the diaphragm pump is not working, if the inlet water is a pressurized water source or the water pressure is high, the pressurized water source will flow out of the outlet through the diaphragm pump, so a valve needs to be set at the outlet. This, in turn, increases the cost of the water dispenser to a certain extent. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a negative pressure flow control water pump which can cut off the water source at the water inlet end when not in operation, thereby preventing water leakage at the water outlet when not in use.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned objectives, an embodiment of the present application provides a negative pressure flow-controlled water pump, including a pump body, on the side wall of which a water inlet pipe and a water outlet pipe are arranged at intervals, the pump body including a bottom cover, a first mounting seat and a second mounting seat which are sealed and installed in sequence; a water inlet chamber is formed between the bottom cover and the first mounting seat, and the water inlet pipe is connected to the water inlet chamber; a first mounting chamber is formed between the first mounting seat and the second mounting seat; a water through hole is provided on the first mounting seat, and the water through hole is connected to the water inlet chamber and the first mounting chamber; water supply mechanisms for controlling the opening and closing of the water through hole are provided on both sides of the water through hole; a power assembly is provided on the side of the second mounting seat away from the first mounting seat; a water outlet chamber is formed between the second mounting seat and the power assembly; the water outlet pipe is connected to the water outlet chamber; a water flow channel is provided on the second mounting seat, one end of the water flow channel is connected to the first mounting chamber, and the other end is connected to the water outlet chamber through the power assembly.
[0007] Preferably, the water supply mechanism includes an elastic sealing component arranged in the water inlet cavity and a control component arranged in the first installation cavity; the elastic sealing component elastically abuts against the water hole and can close the water hole, and the control component passes through the water hole and abuts against the elastic sealing component, and can control the elastic sealing component to detach from the water hole.
[0008] Preferably, the elastic sealing assembly includes a mounting sleeve, a sealing column and a compression spring; the mounting sleeve is fixedly connected to the bottom cover and is located on a side surface close to the water inlet chamber; the mounting sleeve and the water through hole are coaxially arranged, and an opening is formed at one end of the mounting sleeve close to the water through hole; the sealing column is slidably connected to the inner side of the mounting sleeve, one end of the compression spring abuts against the bottom of the mounting sleeve, and the other end elastically abuts against the end of the sealing column, and the sealing column elastically closes the water through hole under the elastic action of the compression spring.
[0009] Preferably, a first limit strip is fixed to the inner wall of the mounting sleeve, the length direction of the first limit strip is parallel to the axial direction of the mounting sleeve, and a plurality of the first limit strips are arranged at equal angles in the circumferential direction, and a first water groove is formed between a plurality of adjacent first limit strips; the plurality of the first limit strips are located on the circumferential outer side of the sealing column, and the first limit strip abuts and limits the radial movement of the sealing column, and the water inlet chamber is connected to the interior of the mounting sleeve through the first water groove.
[0010] Preferably, the control component includes an elastic sealing gasket, a disc and a valve stem; the elastic sealing gasket is clamped between the first mounting seat and the second mounting seat, and is sealed and fixed by the first mounting seat and the second mounting seat, the elastic sealing gasket divides the first mounting cavity into two chambers, including a water cavity formed between the elastic sealing gasket and the first mounting seat and an air cavity formed between the elastic sealing gasket and the second mounting seat, and the water flow channel is connected to the water cavity; the disc is movably installed in the water cavity, one end of the valve stem is fixedly connected to the disc, and the other end passes through the water hole and is fixedly connected to the sealing column; the diameter of the valve stem is smaller than the diameter of the water hole; the power component provides negative pressure to the water cavity through the water flow channel, and when negative pressure is provided to the water cavity, the elastic sealing gasket bends to one side of the water cavity and abuts against the disc, so that the valve stem moves into the water hole, and the valve stem controls the sealing column to open the water hole.
[0011] Preferably, an isolation strip is fixed to a side surface of the first mounting seat close to the water flow cavity, the length direction of the isolation strip is located in the diameter direction of the water flow hole, and multiple isolation strips are arranged at equal angles around the circumference of the water flow hole; a second limit strip is fixed to the upper side of the first mounting seat and located on the inner side of the water flow cavity, the length direction of the second limit strip is parallel to the axial direction of the water flow hole, and multiple second limit strips are arranged at equal angles around the circumference of the water flow hole, and second water flow grooves are formed between adjacent second limit strips; all of the second limit strips slide against the circumferential side wall of the disc.
[0012] Preferably, the power assembly includes a third mounting seat, the third mounting seat being sealed and connected to a side of the second mounting seat away from the first mounting seat; a first sealing ring is integrally formed on a side of the second mounting seat close to the third mounting seat, and a second sealing ring is integrally formed on a side of the third mounting seat close to the second mounting seat, the first sealing ring and the second sealing ring abut against each other and are sealed and connected; the first sealing ring and the second sealing ring form the water outlet cavity on the inner sides of the first sealing ring and the second sealing ring, and a temporary storage cavity is formed on the outer sides of the first sealing ring and the second sealing ring, and the temporary storage cavity is connected to the water flow channel; a fourth mounting seat is provided at one end of the third mounting seat away from the second mounting seat, and a soft rubber suction valve is provided between the third mounting seat and the fourth mounting seat; a fourth mounting seat is provided at one end of the fourth mounting seat away from the third mounting seat An end cover is provided, and a driving member for squeezing the soft rubber suction valve is provided on the end cover; a plurality of grooves are provided on the third mounting seat and on a side surface away from the second sealing ring at intervals along the circumferential direction, and a first connecting hole and a second connecting hole are provided at the bottom of each groove, and the first connecting hole is connected to the temporary storage chamber, and the second connecting hole is connected to the water outlet chamber; the soft rubber suction valve includes a valve plate sealed and fixed between the third mounting seat and the fourth mounting seat, and a leather cup is integrally formed on the valve plate, the leather cup protrudes toward an end away from the third mounting seat, the leather cup is buckled on the outside of the groove, and the driving member controls the squeezing of the leather cup; a rubber column is fixed on the side of the third mounting seat close to the water outlet chamber, a rubber pad is provided on the outside of the rubber column, and the rubber pad fits the second connecting hole.
[0013] (III) Beneficial effects
[0014] The utility model provides a negative pressure flow control water pump, which can control whether the water source passes through the water hole at the water inlet end through the water supply mechanism. When the motor is not working, all components are in standby state. When the pressurized water source enters the water inlet chamber, it will enter the inside of the installation sleeve through the first water groove, and then when the water pressure increases, the sealing column is subjected to an increased force from the water source, thereby further improving the sealing effect of the water hole, and avoiding the situation where the water in the water inlet pipe enters the water pump when the water pump is not working. When it is used as a diaphragm water pump in a water dispenser, it is not necessary to design a valve separately at the water outlet of the diaphragm water pump, thereby saving costs.
[0015] At the same time, the utility model forms a one-way valve at the second connecting hole position by setting a rubber column and a rubber pad at the water outlet end. When the soft rubber suction valve is squeezed, water can be discharged from the second connecting hole. When it is loosened, the rubber pad closes the second connecting hole, so that the water passage cavity generates negative pressure, and then provides negative pressure to the water supply mechanism position, so that it can work normally. At the same time, it can also prevent the water in the water outlet pipe from flowing back into the water pump. It prevents bacteria and microorganisms carried by the external water from entering the water pump, and avoids contaminating the subsequent purified water source. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of a negative pressure flow control water pump of the utility model;
[0017] Figure 2 It is a half-section schematic diagram of a negative pressure flow control water pump of the utility model;
[0018] Figure 3 It is a schematic diagram of a protruding water flow channel in a negative pressure flow control water pump of the utility model;
[0019] Figure 4 It is a schematic diagram of a protruding water supply mechanism in a negative pressure flow control water pump of the utility model;
[0020] Figure 5 It is a schematic diagram of a protruding bottom cover in a negative pressure flow control water pump of the utility model;
[0021] Figure 6 This is a structural schematic diagram of a protruding first mounting seat in a negative pressure flow control water pump of the utility model;
[0022] Figure 7 It is a schematic diagram of the cooperation between the protruding soft rubber suction valve and the second mounting seat in a negative pressure flow control water pump of the utility model;
[0023] Figure 8 It is a schematic diagram of a protruding third mounting seat structure in a negative pressure flow control water pump of the utility model;
[0024] Fig. 9 This is a structural schematic diagram of a protruding soft rubber suction valve in a negative pressure flow control water pump of the utility model;
[0025] Fig.10 It is a schematic diagram of a protruding power component in a negative pressure flow control water pump of the utility model.
[0026] Markings in the accompanying drawings:
[0027] 100, bottom cover; 110, water inlet cavity;
[0028] 200, first mounting seat; 210, first mounting cavity; 211, air cavity; 212, water cavity; 220, water hole; 300, second mounting seat; 310, water outlet cavity; 320, water flow channel; 330, first sealing ring; 340, temporary storage chamber; 400, water supply mechanism; 410, elastic sealing assembly; 411, mounting sleeve; 4111, first limit strip; 4112, first water channel; 412, sealing column; 413, compression spring; 420, control assembly; 421, elastic sealing pad; 422, disc; 423, valve stem; 424, isolation strip; 425, second limit strip; 426, second water channel; 500, power assembly; 510, third mounting seat; 511. second sealing ring; 512. sink; 513. first connecting hole; 514. second connecting hole; 515. rubber column; 516. rubber pad; 520. fourth mounting seat; 530. soft rubber suction valve; 531. valve plate; 532. leather cup; 540. end cover; 550. driving member; 551. driving motor; 552. eccentric shaft; 553. connecting sleeve; 554. driving disk; 600. water inlet pipe; 700. water outlet pipe. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] Example 1
[0031] The utility model provides a negative pressure flow control water pump, see Figure 1-Figure 10 , including a pump body, on the side wall of the pump body, a water inlet pipe 600 and a water outlet pipe 700 are arranged at intervals, and a water supply source is connected through the water inlet pipe 600. During operation, the water pump pumps the water supply source of the water inlet pipe 600 into the water outlet pipe 700.
[0032] Specifically, the pump body includes a bottom cover 100, a first mounting seat 200 and a second mounting seat 300 which are sealed and installed in sequence; a water inlet cavity 110 is formed between the bottom cover 100 and the first mounting seat 200, and a water inlet pipe 600 is connected to the water inlet cavity 110; a first mounting cavity 210 is formed between the first mounting seat 200 and the second mounting seat 300; a water hole 220 is provided on the first mounting seat 200, and the water hole 220 is connected to the water inlet cavity 110 and the first mounting cavity 210; two sides of the water hole 220 A water supply mechanism 400 for controlling the opening and closing of the water hole 220 is arranged on the side of the second mounting seat 300; a power assembly 500 is arranged on the side of the second mounting seat 300 away from the first mounting seat 200; a water outlet cavity 310 is formed between the second mounting seat 300 and the power assembly 500; a water outlet pipe 700 is connected to the water outlet cavity 310; a water flow channel 320 is opened on the second mounting seat 300, one end of the water flow channel 320 is connected to the first mounting cavity 210, and the other end is connected to the water outlet cavity 310 through the power assembly 500. When in use, negative pressure is provided by the power assembly 500 to control the water supply mechanism 400 to open the water hole 220 for water supply. When it is stopped, the water supply mechanism 400 controls the water hole 220 to remain closed, thereby preventing the water source or high-pressure water source from passing through the pump body.
[0033] Specifically, the water supply mechanism 400 includes an elastic sealing component 410 disposed in the water inlet cavity 110 and a control component 420 disposed in the first installation cavity 210. The elastic sealing component 410 elastically abuts against the water hole 220 and can close the water hole 220, and the control component 420 passes through the water hole 220 and abuts against the elastic sealing component 410, and can control the elastic sealing component 410 to be separated from the water hole 220.
[0034] The elastic sealing assembly 410 includes a mounting sleeve 411 , a sealing column 412 and a compression spring 413 .
[0035] The mounting sleeve 411 is fixedly connected to the bottom cover 100 and is located on a side close to the water inlet chamber 110 ; the mounting sleeve 411 and the water hole 220 are coaxially arranged, and an end of the mounting sleeve 411 close to the water hole 220 forms an opening.
[0036] One end of the sealing column 412 is slidably connected to the inner side of the installation sleeve 411, and the other end extends from the installation sleeve 411 to close or open the water hole 220. Specifically, when the sealing column 412 abuts against the water hole 220, the water hole 220 is closed, and when the sealing column 412 is separated from the water hole 220, the water hole 220 is opened, and the water source in the water inlet pipe 600 can pass through the water hole 220.
[0037] The compression spring 413 is located inside the installation sleeve 411, one end of the compression spring 413 abuts against the bottom of the installation sleeve 411, and the other end elastically abuts against the end of the sealing column 412, which is used to elastically pressurize the installation sleeve 411. The sealing column 412 elastically closes the water hole 220 under the elastic action of the compression spring 413. In the absence of external force, that is, when the control component 420 does not apply force to the sealing column 412, the sealing column 412 keeps closing the water hole 220. Through this arrangement, when the water pump is not working, under the action of the compression spring 413, the sealing column 412 can keep closing the water hole 220, thereby ensuring that when the water pump is not working, the water in the water inlet pipe 600 will not enter the water pump.
[0038] Better, in order to prevent the water source from entering the water hole 220 through the gap when the water pressure is too high. A first limiting strip 4111 is fixed on the inner wall of the installation sleeve 411, and the length direction of the first limiting strip 4111 is parallel to the axial direction of the installation sleeve 411, and a plurality of first limiting strips 4111 are arranged at equal angles in the circumferential direction, and a first water groove 4112 is formed between a plurality of adjacent first limiting strips 4111. The plurality of first limiting strips 4111 are located outside the circumference of the sealing column 412, and the first limiting strips 4111 abut against and limit the radial movement of the sealing column 412, and the water inlet chamber 110 is connected to the inside of the installation sleeve 411 through the first water groove 4112. Through this arrangement, when the water source of the water inlet pipe 600 enters the water inlet chamber 110, part of the water source will flow into the inside of the installation sleeve 411 through the first water groove 4112. At this time, when the sealing column 412 closes the water hole 220, there is a water source in the installation sleeve 411, and the sealing column 412 is subjected to the elastic force of the compression spring 413 and the force of the water source, so that the sealing column 412 strengthens the sealing effect of the water hole 220. When the water pressure increases, the force of the water source on the sealing column 412 increases, thereby further improving the sealing effect of the water hole 220, thereby preventing the water in the water inlet pipe 600 from entering the water pump when the water pump is not working.
[0039] The control assembly 420 includes an elastic sealing pad 421 , a disc 422 and a valve stem 423 .
[0040] The elastic sealing pad 421 is sandwiched between the first mounting seat 200 and the second mounting seat 300, and is sealed and fixed by the first mounting seat 200 and the second mounting seat 300. The elastic sealing pad 421 divides the first mounting cavity 210 into two chambers, including an air cavity 211 and a water cavity 212. Among them, the water cavity 212 is formed between the elastic sealing pad 421 and the first mounting seat 200, and the air cavity 211 is formed between the elastic sealing pad 421 and the second mounting seat 300. Among them, the water flow channel 320 is connected to the water cavity 212. When the power component 500 provides negative pressure, negative pressure is formed in the water cavity 212 through the water flow channel 320, so that the elastic sealing pad 421 protrudes to one side of the water cavity 212. When the negative pressure disappears, the elastic sealing pad 421 returns to its original state.
[0041] The disc 422 is movably installed in the water passage chamber 212, one end of the valve stem 423 is fixedly connected to the disc 422, and the other end is inserted into the water passage hole 220 and fixedly connected to the sealing column 412; the diameter of the valve stem 423 is smaller than the diameter of the water passage hole 220, and thus although the valve stem 423 passes through the water passage hole 220, it does not affect the flow of water.
[0042] The power assembly 500 provides negative pressure to the water chamber 212 through the water flow channel 320. When negative pressure is provided to the water chamber 212, the elastic sealing pad 421 bends toward one side of the water chamber 212 and abuts against the disc 422, so that the valve stem 423 moves into the water hole 220, and the valve stem 423 controls the sealing column 412 to open the water hole 220.
[0043] Furthermore, in order to prevent the disc 422 from blocking the water hole 220, an isolation bar 424 is fixed to a side of the first mounting seat 200 close to the water cavity 212. The length direction of the isolation bar 424 is located in the diameter direction of the water hole 220, and a plurality of isolation bars 424 are arranged at equal angles around the circumference of the water hole 220. When the disc 422 moves toward the side close to the water hole 220, it can abut against the isolation bar 424 at most, and there will be gaps between the isolation bars 424 for water to pass through.
[0044] A second limiting strip 425 is fixed on the upper side of the first mounting seat 200 and located inside the water passage cavity 212. The length direction of the second limiting strip 425 is parallel to the axial direction of the water passage hole 220, and a plurality of second limiting strips 425 are arranged at equal angles around the circumference of the water passage hole 220, and a second water passage groove 426 is formed between adjacent second limiting strips 425. All the second limiting strips 425 slide against the circumferential side wall of the disc 422. The second limiting strip 425 can be set to limit the disc 422, and at the same time, the water source can pass through the second water passage groove 426, that is, the stability of the movement of the disc 422 is ensured, and the stability of the water source supply is ensured. When the water flows through the water passage hole 220 and enters the water passage cavity 212, it will enter the water flow channel 320.
[0045] The power assembly 500 includes a third mounting seat 510 , and the third mounting seat 510 is sealed and connected to a side of the second mounting seat 300 away from the first mounting seat 200 .
[0046] A first sealing ring 330 is integrally formed on one side of the second mounting seat 300 close to the third mounting seat 510, and a second sealing ring 511 is integrally formed on one side of the third mounting seat 510 close to the second mounting seat 300. The first sealing ring 330 and the second sealing ring 511 abut against each other and are sealed and connected; specifically, a sealing gasket is sandwiched between the second mounting seat 300 and the third mounting seat 510, and a sealed connection is achieved through the sealing gasket.
[0047] The first sealing ring 330 and the second sealing ring 511 form a water outlet cavity 310 inside, and the first sealing ring 330 and the second sealing ring 511 form a temporary storage cavity 340 outside. The temporary storage cavity 340 is connected to the water flow channel 320. Specifically, the water flows into the temporary storage cavity 340 after passing through the water flow channel 320.
[0048] A fourth mounting seat 520 is disposed at one end of the third mounting seat 510 away from the second mounting seat 300, and a soft glue suction valve 530 is disposed between the third mounting seat 510 and the fourth mounting seat 520. An end cap 540 is disposed at one end of the fourth mounting seat 520 away from the third mounting seat 510, and a driving member 550 for squeezing the soft glue suction valve 530 is disposed on the end cap 540.
[0049] A plurality of sinks 512 are provided at intervals along the circumferential direction on a side surface of the third mounting seat 510 away from the second sealing ring 511, and a first communicating hole 513 and a second communicating hole 514 are provided at the bottom of each sink 512, and the first communicating hole 513 is connected to the temporary storage chamber 340, and the second communicating hole 514 is connected to the water outlet chamber 310. After entering the temporary storage chamber 340, the water flows into the sink 512 through the first communicating hole 513, and then enters the water outlet chamber 310 through the second communicating hole 514, and is finally discharged from the water outlet pipe 700.
[0050] The soft rubber suction valve 530 includes a valve plate 531 sealed and fixed between the third mounting seat 510 and the fourth mounting seat 520, and a leather cup 532 is integrally formed on the valve plate 531. The leather cup 532 protrudes toward one end away from the third mounting seat 510, and the leather cup 532 is buckled on the outside of the sink groove 512. The driving member 550 controls the squeezing of the leather cup 532.
[0051] The fourth mounting seat 520 is provided with a mounting hole, through which the leather cup 532 passes and is connected to the driving member 550. The fourth mounting seat 520 presses the valve plate 531, so that the area except the leather cup 532 is kept in a tight sealing state with the third mounting seat 510.
[0052] A rubber column 515 is fixed to one side of the third mounting seat 510 close to the water outlet cavity 310 . A rubber pad 516 is disposed on the outer side of the rubber column 515 . The rubber pad 516 fits the second connecting hole 514 .
[0053] When the leather cup 532 is squeezed, the leather cup 532 discharges water outward. At this time, the water pressure in the water chamber 212 and the temporary storage chamber 340 increases, the rubber pad 516 moves away from the second connecting hole 514, and the water source is discharged to the water outlet pipe 700. When the leather cup 532 is not squeezed, due to its own elasticity, negative pressure will be generated. At this time, the rubber pad 516 fits the second connecting hole 514, so that this position is sealed, and then the water chamber 212 will generate negative pressure. Due to the negative pressure, the water hole 220 will be controlled to open. By setting the rubber pad 516, it is also possible to prevent the water in the water outlet pipe 700 from flowing back into the water pump. It is prevented that bacteria and microorganisms carried by the outside water enter the water pump, and the subsequent purified water source is prevented from being contaminated.
[0054] Specifically, the driving member 550 includes a driving motor 551 fixed to the outside of the end cover 540, the output shaft of the driving motor 551 passes through the end cover 540 and is located inside the end cover 540, and an eccentric shaft 552 is arranged inside the end cover 540, and a connecting sleeve 553 is slidably sleeved on the eccentric shaft 552, and a driving disk 554 is fixed on the connecting sleeve, and all the leather cups are connected through the driving disk.
[0055] When the eccentric shaft 552 rotates, it drives the upper end of the leather cup 532 to swing. During the swinging process, a squeezing-relaxing process of the leather cup 532 is formed. During this process, negative pressure is provided to the water chamber 212, or water is supplied to the water outlet pipe 700.
[0056] Finally, it should be noted that the pump body has a bottom cover 100, a first mounting seat 200, a second mounting seat 300, a third mounting seat 510, a fourth mounting seat 520 and an end cover 540 which are sealed and installed in sequence. During installation, a long bolt can be used for fixed connection, or other methods can be used for fixed connection, which are not limited here.
[0057] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0058] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the absence of conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.
[0059] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A negative pressure flow control water pump, comprising a pump body, on the side wall of which a water inlet pipe (600) and a water outlet pipe (700) are arranged at intervals, characterized in that: The pump body comprises a bottom cover (100), a first mounting seat (200) and a second mounting seat (300) which are sealed and mounted in sequence; a water inlet cavity (110) is formed between the bottom cover (100) and the first mounting seat (200), and the water inlet pipe (600) is connected to the water inlet cavity (110); A first installation cavity (210) is formed between the first installation seat (200) and the second installation seat (300); a water hole (220) is provided on the first installation seat (200), and the water hole (220) communicates with the water inlet cavity (110) and the first installation cavity (210); Water supply mechanisms (400) for controlling the opening and closing of the water hole (220) are arranged on both sides of the water hole (220); A power assembly (500) is provided on a side of the second mounting seat (300) away from the first mounting seat (200); a water outlet cavity (310) is formed between the second mounting seat (300) and the power assembly (500); the water outlet pipe (700) is connected to the water outlet cavity (310); The second mounting seat (300) is provided with a water flow channel (320), one end of the water flow channel (320) is connected to the first mounting cavity (210), and the other end is connected to the water outlet cavity (310) via a power assembly (500).
2. A negative pressure flow control water pump according to claim 1, characterized in that: The water supply mechanism (400) comprises an elastic sealing component (410) arranged in the water inlet cavity (110) and a control component (420) arranged in the first installation cavity (210); The elastic sealing component (410) elastically abuts against the water hole (220) and is capable of closing the water hole (220); the control component (420) passes through the water hole (220) and abuts against the elastic sealing component (410) and is capable of controlling the elastic sealing component (410) to detach from the water hole (220).
3. A negative pressure flow control water pump according to claim 2, characterized in that: The elastic sealing assembly (410) comprises a mounting sleeve (411), a sealing column (412) and a compression spring (413); The mounting sleeve (411) is fixedly connected to the bottom cover (100) and is located on a side surface close to the water inlet chamber (110); the mounting sleeve (411) and the water through hole (220) are coaxially arranged, and an end of the mounting sleeve (411) close to the water through hole (220) forms an opening; The sealing column (412) is slidably connected to the inner side of the installation sleeve (411), one end of the compression spring (413) abuts against the bottom of the installation sleeve (411), and the other end elastically abuts against the end of the sealing column (412), and the sealing column (412) elastically closes the water hole (220) under the elastic action of the compression spring (413).
4. A negative pressure flow control water pump according to claim 3, characterized in that: A first limiting strip (4111) is fixed to the inner wall of the installation sleeve (411), the length direction of the first limiting strip (4111) is parallel to the axial direction of the installation sleeve (411), and a plurality of the first limiting strips (4111) are arranged at equal angles along the circumferential direction, and a first water channel (4112) is formed between the plurality of adjacent first limiting strips (4111); A plurality of the first limiting strips (4111) are located outside the circumference of the sealing column (412), and the first limiting strips (4111) abut against and limit the radial movement of the sealing column (412), and the water inlet cavity (110) is connected to the interior of the installation sleeve (411) via the first water channel (4112).
5. A negative pressure flow control water pump according to claim 3, characterized in that: The control component (420) comprises an elastic sealing pad (421), a disc (422) and a valve stem (423); The elastic sealing pad (421) is sandwiched between the first mounting seat (200) and the second mounting seat (300), and is sealed and fixed by the first mounting seat (200) and the second mounting seat (300); The elastic sealing pad (421) divides the first installation cavity (210) into two chambers, including a water passage cavity (212) formed between the elastic sealing pad (421) and the first installation seat (200) and an air cavity (211) formed between the elastic sealing pad (421) and the second installation seat (300), and the water flow channel (320) is connected to the water passage cavity (212); The disc (422) is movably installed in the water passage chamber (212); one end of the valve stem (423) is fixedly connected to the disc (422), and the other end is inserted into the water passage hole (220) and fixedly connected to the sealing column (412); The diameter of the valve stem (423) is smaller than the diameter of the water hole (220); The power assembly (500) provides negative pressure to the water passage chamber (212) through the water flow channel (320); when negative pressure is provided to the water passage chamber (212), the elastic sealing pad (421) bends toward one side of the water passage chamber (212) and abuts against the disc (422), so that the valve stem (423) moves into the water passage hole (220), and the valve stem (423) controls the sealing column (412) to open the water passage hole (220).
6. A negative pressure flow control water pump according to claim 5, characterized in that: An isolation strip (424) is fixed to a side surface of the first mounting seat (200) close to the water passage cavity (212); the length direction of the isolation strip (424) is located in the diameter direction of the water passage hole (220), and a plurality of isolation strips (424) are arranged around the water passage hole (220) at equal angles along the circumference thereof; A second limiting strip (425) is fixed on the upper side of the first mounting seat (200) and located inside the water passage cavity (212); the length direction of the second limiting strip (425) is parallel to the axial direction of the water passage hole (220); a plurality of second limiting strips (425) are arranged at equal angles in the circumferential direction of the water passage hole (220); and a second water passage groove (426) is formed between adjacent second limiting strips (425); All of the second limiting strips (425) slidably abut against the circumferential side wall of the circular disc (422).
7. A negative pressure flow control water pump according to claim 1, characterized in that: The power assembly (500) comprises a third mounting seat (510), wherein the third mounting seat (510) is sealingly connected to a side of the second mounting seat (300) away from the first mounting seat (200); A first sealing ring (330) is integrally formed on a side of the second mounting seat (300) close to the third mounting seat (510), and a second sealing ring (511) is integrally formed on a side of the third mounting seat (510) close to the second mounting seat (300), the first sealing ring (330) and the second sealing ring (511) abut against each other and are sealed; The water outlet cavity (310) is formed inside the first sealing ring (330) and the second sealing ring (511), and the temporary storage chamber (340) is formed outside the first sealing ring (330) and the second sealing ring (511), and the temporary storage chamber (340) is connected to the water flow channel (320); A fourth mounting seat (520) is arranged at one end of the third mounting seat (510) away from the second mounting seat (300), and a soft rubber suction valve (530) is arranged between the third mounting seat (510) and the fourth mounting seat (520); An end cover (540) is provided at one end of the fourth mounting seat (520) away from the third mounting seat (510), and a driving member (550) for pressing the soft rubber suction valve (530) is provided on the end cover (540); A plurality of sink grooves (512) are provided at intervals along the circumferential direction on a side surface of the third mounting seat (510) away from the second sealing ring (511); a first connecting hole (513) and a second connecting hole (514) are provided at the bottom of each sink groove (512); the first connecting hole (513) is connected to the temporary storage chamber (340), and the second connecting hole (514) is connected to the water outlet chamber (310); The soft rubber suction valve (530) comprises a valve plate (531) sealed and fixed between the third mounting seat (510) and the fourth mounting seat (520), a leather cup (532) is integrally formed on the valve plate (531), the leather cup (532) protrudes toward one end away from the third mounting seat (510), the leather cup (532) is buckled on the outside of the sink (512), and the driving member (550) controls the squeezing of the leather cup (532); A rubber column (515) is fixed to a side of the third mounting seat (510) close to the water outlet cavity (310), a rubber pad (516) is provided on the outside of the rubber column (515), and the rubber pad (516) fits the second connecting hole (514).