CN220452162U - Miniature diaphragm water pump with self-discharging pressure backflow protection - Google Patents
Miniature diaphragm water pump with self-discharging pressure backflow protection Download PDFInfo
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- CN220452162U CN220452162U CN202322077347.3U CN202322077347U CN220452162U CN 220452162 U CN220452162 U CN 220452162U CN 202322077347 U CN202322077347 U CN 202322077347U CN 220452162 U CN220452162 U CN 220452162U
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- hole
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000007599 discharging Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 105
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 238000010992 reflux Methods 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a miniature diaphragm water pump with self-discharging pressure backflow protection, which comprises a diaphragm water pump, a pressure relief valve, a valve seat sealing gasket and a spring, wherein the pressure relief valve is arranged on the diaphragm water pump, the diaphragm water pump is provided with a liquid inlet channel and a liquid outlet channel, the pressure relief valve is provided with a water inlet hole, a pressure relief hole, a backflow groove and a water outlet hole, the water inlet hole is communicated with the liquid inlet channel, the pressure relief hole and the water outlet hole are both communicated with the liquid outlet channel, the backflow groove is communicated with the water inlet hole, the valve seat sealing gasket and the spring are both arranged in the diaphragm water pump, and the spring props against the valve seat sealing gasket, so that the valve seat sealing gasket can cover the pressure relief hole to block the communication between the pressure relief hole and the backflow groove, and when the valve seat sealing gasket does not cover the pressure relief hole, the pressure relief hole is communicated with the backflow groove. The pressure relief device can relieve pressure when the pressure of the liquid outlet channel is overlarge, so that the normal operation of the diaphragm water pump is effectively ensured, and the damage of the diaphragm water pump caused by overlarge pressure is avoided.
Description
Technical Field
The utility model relates to the field of water pump design, in particular to a miniature diaphragm water pump with self-discharging pressure backflow protection.
Background
A micro water pump is a micro device for lifting, transporting or pressurizing a liquid, and is often classified into a diaphragm type, an impeller type, a piston type, etc. according to the internal structure thereof, wherein the micro diaphragm water pump has been widely used in various fields such as a water dispenser, a coffee machine, a small household appliance for cleaning, a new energy automobile, etc.
In the actual use of the miniature diaphragm water pump, the conditions of overlarge pressure and the like at the water outlet of the water pump caused by abnormal working conditions such as water outlet blockage and the like often occur, if the pressure cannot be timely released, the normal work of the miniature diaphragm water pump can be influenced, and even the water outlet of the miniature diaphragm water pump can be damaged when serious.
Disclosure of Invention
The utility model aims to provide a miniature diaphragm water pump with self-discharging pressure backflow protection, which can solve one or more of the problems.
According to one aspect of the utility model, a miniature diaphragm water pump with self-discharging backflow protection is provided, the miniature diaphragm water pump comprises a diaphragm water pump, a pressure relief valve, a valve seat sealing gasket and a spring, wherein the pressure relief valve is arranged on the diaphragm water pump, the diaphragm water pump is provided with a liquid inlet channel and a liquid outlet channel, the pressure relief valve is provided with a water inlet hole, a pressure relief hole, a backflow groove and a water outlet hole, the water inlet hole is communicated with the liquid inlet channel, the pressure relief hole and the water outlet hole are both communicated with the liquid outlet channel, the backflow groove is communicated with the water inlet hole, the valve seat sealing gasket and the spring are both arranged in the diaphragm water pump, and the spring props against the valve seat sealing gasket, so that the valve seat sealing gasket can cover the pressure relief hole to block the communication between the pressure relief hole and the backflow groove, and when the valve seat sealing gasket does not cover the pressure relief hole, the pressure relief hole is communicated with the backflow groove.
The beneficial effects of the utility model are as follows: according to the utility model, when the pressure of the liquid outlet channel is overlarge due to abnormal working conditions such as blockage of the liquid outlet channel of the diaphragm water pump, when the pressure is enough so that the spring is fully compressed, the valve seat sealing gasket is not covered on the pressure relief hole any more, the pressure relief hole can be communicated with the reflux groove, so that part of liquid in the liquid outlet channel can flow out through the pressure relief hole, and flows back to the water inlet hole through the reflux groove and then flows back to the liquid inlet channel, thereby effectively reducing the pressure of the liquid outlet channel to realize pressure relief, effectively ensuring the normal operation of the diaphragm water pump, and avoiding damage of the diaphragm water pump due to overlarge pressure.
In some embodiments, the diaphragm water pump includes the pump body, motor, swing mechanism, diaphragm, feed liquor valve and drain valve, the motor is installed on the pump body to drive the diaphragm through swing mechanism and remove, the diaphragm encloses the cavity in the pump body, the feed liquor valve is located between feed liquor way and the cavity, the drain valve is located between drain liquor way and the cavity, the removal of diaphragm can change the size of cavity when the cavity increases, the feed liquor way is linked together with the cavity, the drain valve can separate the intercommunication of drain way and cavity, when the cavity reduces, the drain way is linked together with the cavity, the feed liquor valve can separate the intercommunication of feed liquor way and cavity.
In some embodiments, the swing mechanism includes a crank coupled to the motor, a swing shaft, and a swing lever coupled to the crank via the swing shaft. The swing rod can rotate by driving the crank to rotate.
In some embodiments, the swing link is provided with a protrusion, the protrusion being connectable with a diaphragm, the protrusion being provided with a hole, the diaphragm being provided with a connecting post, the connecting post passing through the hole. The arrangement of the connecting column and the hole can play a certain limiting role on the relative movement of the diaphragm and the swing, and the movement reliability of the swing rod and the diaphragm is improved.
In some embodiments, the pump body comprises a motor base, a diaphragm support, a valve plate support and a pump nozzle, wherein the diaphragm support is connected with the motor base, the valve plate support is connected with the diaphragm support, the pressure release valve is connected with the valve plate support, and the pump nozzle is connected with the pressure release valve. The motor cabinet can facilitate the installation of the motor, the diaphragm support can facilitate the installation of the diaphragm, and the valve plate support can facilitate the arrangement of the liquid outlet valve and the liquid inlet valve.
In some embodiments, the pump nozzle is provided with a containing cavity, and the spring is embedded on the containing cavity and props against the bottom of the containing cavity. The accommodating cavity can play a limiting role on the movement of the spring so as to reduce the probability of movement dislocation of the spring.
In some embodiments, the pump nozzle is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is communicated with the water inlet hole, and the liquid outlet pipe is communicated with the water outlet hole.
In some embodiments, the pressure relief valve is provided with a boss, and the valve seat gasket is movably sleeved on the boss. The boss can play a limiting role on the movement of the valve seat sealing gasket, and the movement accuracy of the valve seat sealing gasket is improved.
In some embodiments, the aperture of the pressure relief hole, the force of the spring, or the size of the return groove may be adjustable. The aperture of the pressure relief hole, the acting force of the spring or the adjustment of the size of the reflux groove can be matched with different pressure relief reflux pressure requirements for use, and the pressure relief device is simple and effective.
Drawings
Fig. 1 is a schematic structural diagram of a micro diaphragm water pump with self-discharging backflow protection according to an embodiment of the present utility model.
Fig. 2 is a schematic top view of a micro diaphragm water pump with self-discharging backflow protection according to an embodiment of the present utility model.
Fig. 3 is a cross-sectional view at A-A of the micro diaphragm pump with self-pressurizing backflow protection of fig. 2.
Fig. 4 is an exploded view of a schematic structural diagram of a micro diaphragm water pump with self-discharging backflow protection according to an embodiment of the present utility model.
Fig. 5 is a schematic structural diagram of a relief valve of a micro diaphragm water pump with self-discharging backflow protection according to an embodiment of the present utility model.
Fig. 6 is a schematic structural diagram of a swing rod of a micro diaphragm water pump with self-discharging backflow protection according to an embodiment of the present utility model.
In the figure: 1. diaphragm water pump, 2, relief valve, 3, valve seat sealing gasket, 4, spring, 11, pump body, 12, motor, 13, swing mechanism, 14, diaphragm, 15, liquid inlet valve 16, a liquid outlet valve, 111, a motor seat, 112, a diaphragm support, 113, a valve plate support, 114, a pump nozzle, 115, a sealing gasket, 31, a crank 32, a pendulum shaft, 33, a pendulum rod, 331, a bulge, 332, a hole, 141, a connecting column, 10, a cavity, 20, a liquid inlet channel, 30, a liquid outlet channel, 21, a water inlet hole, 22, a pressure relief hole, 23, a reflux groove, 24, a water outlet hole, 25, a boss, 1140, a containing cavity, 1141, a liquid inlet pipe and 1142, and a liquid outlet pipe.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, 2, 3, 4, 5 and 6, the miniature diaphragm water pump with self-discharging backflow protection of the utility model comprises a diaphragm water pump 1, a pressure relief valve 2, a valve seat sealing gasket 3 and a spring 4.
The diaphragm water pump 1 comprises a pump body 11, a motor 12, a swinging mechanism 13, a diaphragm 14, a liquid inlet valve 15 and a liquid outlet valve 16.
Pump body 11 includes motor mount 111, diaphragm mount 112, valve plate mount 113, and pump nozzle 114. The diaphragm support 112, the motor base 111, the valve plate support 113, the pressure release valve 2 and the pump nozzle 114 are fixedly connected through the same bolt, so that the bottom side of the diaphragm support 112 is connected with the top side of the motor base 111, the bottom side of the valve plate support 113 is connected with the top side of the diaphragm support 112, the bottom side of the pressure release valve 2 is connected with the top side of the valve plate support 113, the pressure release valve 2 is arranged on the diaphragm water pump 1, a sealing gasket 115 is further arranged between the pressure release valve 2 and the valve plate support 113, and the bottom side of the pump nozzle 114 is connected with the top side of the pressure release valve 2.
The body of the motor 12 is fixedly arranged on a motor base 111 of the pump body 11, the swinging mechanism 13 comprises a crank 31, a swinging shaft 32 and a swinging rod 33, the crank 31 is connected with a rotating shaft of the motor 12, one end of the swinging shaft 32 is embedded on the crank 31, and the other end of the swinging shaft 32 is connected with the swinging rod 33, so that the swinging rod 33 is connected with the crank 31 through the swinging shaft 32.
The diaphragm 14 is mounted on the diaphragm support 112 and is fixed by the connection of the diaphragm support 112 and the valve plate support 113, the diaphragm 14 is preferably provided with three movable blocks, the swing rod 33 is provided with three protrusions 331, and the protrusions 331 are preferably three, and the three protrusions 331 can be connected with the movable parts of the three diaphragms 14 respectively. In addition, the protrusion 331 is provided with a hole 332, the bottom of the diaphragm 14 is provided with connecting posts 141, and the connecting posts 141 of the three diaphragms 14 respectively pass through the holes 332 on the three swinging rods 33 in a one-to-one correspondence manner.
The motor 12 can drive the movable blocks of the diaphragm 14 to move through the swinging mechanism 13, and three cavities 10 are formed in the pump body 11 by the three movable blocks of the diaphragm 14.
The pump body 11 is also provided with a liquid inlet channel 20 and a liquid outlet channel 30, and all cavities 10 are communicated with the liquid inlet channel 20 and the liquid outlet channel 30 under the condition of no obstruction. The liquid inlet valves 15 are preferably liquid inlet umbrella valves, also preferably three liquid inlet valves 15 are all movably arranged on the valve plate support 113, the three liquid inlet valves 15 are respectively arranged between the three cavities 10 and the liquid inlet channels 20, the liquid outlet valves 16 are preferably liquid outlet valves, also preferably three liquid outlet valves 16 are all movably arranged on the valve plate support 113, and the three liquid outlet valves 16 are respectively arranged between the three cavities 10 and the liquid outlet channels 30.
When the diaphragm 14 is driven by the motor 12 to move, the size of the cavity 10 of the diaphragm is correspondingly changed, when the cavity 10 is increased, namely, the pressure in the cavity 10 is reduced, the external pressure can push the liquid inlet valve 15 and the liquid outlet valve 16, so that the liquid inlet channel 20 and the cavity 10 are not blocked, the liquid inlet channel 20 is communicated with the cavity 10, the liquid outlet valve 16 can block the liquid outlet channel 30 from being communicated with the cavity 10, when the cavity 10 is reduced, namely, the pressure in the cavity 10 is increased, the internal pressure can push the liquid inlet valve 15 and the liquid outlet valve 16, the liquid outlet valve 16 can not block the liquid outlet channel 30 from being communicated with the cavity 10, and the liquid outlet channel 30 is communicated with the cavity 10, and the liquid inlet valve 15 can block the liquid inlet channel 20 from being communicated with the cavity 10.
The pressure relief valve 2 is provided with a water inlet 21, a pressure relief hole 22, a reflux groove 23 and a water outlet 24. The water inlet 21 is communicated with the liquid inlet channel 20, the pressure relief hole 22 and the water outlet 24 are both communicated with the liquid outlet channel 30, and the reflux groove 23 is communicated with the water inlet 21. And the pump nozzle 114 is provided with a liquid inlet pipe 1141 and a liquid outlet pipe 1142, the liquid inlet pipe 1141 is communicated with the water inlet hole 21, and the liquid outlet pipe 1142 is communicated with the water outlet hole 24.
The valve seat sealing gasket 3 and the spring 4 are both arranged in the pump body 111 of the diaphragm water pump 1, the pump nozzle 114 is provided with a containing cavity 1140, the spring 4 is embedded in the containing cavity 1140, one end of the spring 4 is propped against the bottom of the containing cavity 1140, the other end is propped against the valve seat sealing gasket 3, the pressure release valve 2 is also provided with a boss 25, the valve seat sealing gasket 3 is movably sleeved on the boss 25, under the acting force of the spring 4, the valve seat sealing gasket 3 can cover the pressure release hole 22 to block the communication between the pressure release hole 22 and the reflux groove 23, and after the spring 4 is compressed to enable the valve seat sealing gasket 3 to move, the valve seat sealing gasket 3 can not cover the pressure release hole 22, and at the moment, the pressure release hole 22 is communicated with the reflux groove 23.
When the diaphragm device works, the motor 12 can rotate to drive the crank 31 to rotate, the crank 31 can drive the swing rod 33 to act through the swing shaft 32, and the diaphragm 14 can move with the connecting part of the diaphragm device along with the action of the swing rod 33.
The movement of the diaphragm 14 will change the size of the cavity 10, when the cavity 10 increases, i.e. when the pressure in the cavity 10 decreases, the external pressure can push the liquid inlet valve 15 and the liquid outlet valve 16, so that the liquid inlet channel 20 is not blocked from being communicated with the cavity 10, the liquid inlet channel 20 is blocked from being communicated with the cavity 10, and the liquid outlet valve 16 can block the liquid outlet channel 30 from being communicated with the cavity 10, and due to the decrease of the pressure in the cavity 10, suction force can be generated to suck external liquid into the cavity 10 through the liquid inlet pipe 1141 and the water inlet hole 21, and then the liquid is sucked into the cavity 10 through the liquid inlet channel 20; when the cavity 10 is reduced, that is, when the pressure in the cavity 10 is increased, the internal pressure can push the liquid inlet valve 15 and the liquid outlet valve 16, the liquid outlet valve 16 can not block the liquid outlet channel 30 from being communicated with the cavity 10, the liquid outlet channel 30 is communicated with the cavity 10, the liquid inlet valve 15 can block the liquid inlet channel 20 from being communicated with the cavity 10, and due to the increase of the pressure in the cavity 10, the liquid inlet valve 15 can generate thrust to push the liquid in the cavity 10 to push the liquid outlet channel 30, and the liquid flows out after passing through the water outlet hole 24 and the liquid outlet pipe 1142.
In summary, as the motor 12 rotates, the diaphragm 14 moves continuously along with the continuous action of the swing rod 33, so that water absorption and water discharge can be continuously realized to be used as a water pump.
When the pressure of the liquid outlet channel 30 is overlarge due to abnormal working conditions such as blockage of the diaphragm water pump 1, the pressure in the liquid outlet channel 30 can be applied to the spring 4 through the valve seat sealing gasket 3, when the pressure reaches the set opening pressure, namely the spring 4 is fully compressed, the valve seat sealing gasket 3 moves to be not covered on the pressure relief hole 22, the pressure relief hole 22 can be communicated with the reflux groove 23, so that a part of liquid in the liquid outlet channel 30 can flow out through the pressure relief hole 22 and flow back to the water inlet hole 21 through the reflux groove 23, the pressure of the liquid outlet channel 30 can be effectively reduced to realize pressure relief, the normal operation of the diaphragm water pump 1 can be effectively ensured, and the damage of the diaphragm water pump 1 due to overlarge pressure can be avoided.
In the present utility model, any one or more of the aperture of the relief hole 22, the urging force of the spring 4, and the size of the return groove 23 may be adjusted. The aperture of the pressure relief hole 22, the acting force of the spring 4 or the size of the reflux groove 23 can be adjusted, so that the pressure relief device can be effectively matched with different pressure relief reflux pressure requirements for use, and is simple and effective.
What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.
Claims (9)
1. The utility model provides a take self-discharging pressure backflow protection's miniature diaphragm water pump, its characterized in that, including diaphragm water pump, relief valve, disk seat sealing pad and spring, the relief valve is installed on diaphragm water pump, diaphragm water pump is equipped with inlet channel and drain way, the relief valve is equipped with inlet opening, relief hole, reflux tank and apopore, the inlet opening is linked together with the inlet channel, relief hole and apopore all are linked together with the drain way, the reflux tank is linked together with the inlet opening, disk seat sealing pad and spring are all located in the diaphragm water pump, the spring supports disk seat sealing pad, makes disk seat sealing pad can cover on the relief hole in order to cut off the intercommunication of relief hole and reflux tank when disk seat sealing pad does not cover on the relief hole, the relief hole is linked together with the reflux tank.
2. The miniature diaphragm water pump with self-discharging backflow protection according to claim 1, wherein the diaphragm water pump comprises a pump body, a motor, a swinging mechanism, a diaphragm, a liquid inlet valve and a liquid outlet valve, wherein the motor is arranged on the pump body and drives the diaphragm to move through the swinging mechanism, a cavity is surrounded by the diaphragm in the pump body, the liquid inlet valve is arranged between a liquid inlet channel and the cavity, the liquid outlet valve is arranged between a liquid outlet channel and the cavity, the movement of the diaphragm can change the size of the cavity, when the cavity is increased, the liquid inlet channel is communicated with the cavity, the liquid outlet valve can block the communication of the liquid outlet channel and the cavity, and when the cavity is reduced, the liquid inlet valve can block the communication of the liquid inlet channel and the cavity.
3. The miniature diaphragm water pump with self-discharging backflow protection according to claim 2, wherein the swinging mechanism comprises a crank, a swinging shaft and a swinging rod, the crank is connected with the motor, and the swinging rod is connected with the crank through the swinging shaft.
4. A miniature diaphragm water pump with self-discharging backflow protection according to claim 3, characterized in that the swing rod is provided with a protrusion, the protrusion can be connected with the diaphragm, the diaphragm is provided with a connecting column, and the connecting column passes through the hole.
5. The miniature diaphragm water pump with self-discharging backflow protection according to claim 2, wherein the pump body comprises a motor seat, a diaphragm support, a valve plate support and a pump nozzle, the diaphragm support is connected with the motor seat, the valve plate support is connected with the diaphragm support, the pressure relief valve is connected with the valve plate support, and the pump nozzle is connected with the pressure relief valve.
6. The miniature diaphragm water pump with self-discharging backflow protection according to claim 5, wherein the pump nozzle is provided with a containing cavity, and the spring is embedded on the containing cavity and props against the bottom of the containing cavity.
7. The miniature diaphragm water pump with self-discharging backflow protection according to claim 5, wherein the pump nozzle is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is communicated with the water inlet hole, and the liquid outlet pipe is communicated with the water outlet hole.
8. The miniature diaphragm water pump with self-discharging backflow protection according to claim 1, wherein the pressure relief valve is provided with a boss, and the valve seat sealing gasket is movably sleeved on the boss.
9. The miniature diaphragm water pump with self-discharging backflow protection according to claim 1, wherein the aperture of the pressure relief hole, the acting force of the spring or the size of the backflow groove can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322077347.3U CN220452162U (en) | 2023-08-03 | 2023-08-03 | Miniature diaphragm water pump with self-discharging pressure backflow protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322077347.3U CN220452162U (en) | 2023-08-03 | 2023-08-03 | Miniature diaphragm water pump with self-discharging pressure backflow protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452162U true CN220452162U (en) | 2024-02-06 |
Family
ID=89733940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322077347.3U Active CN220452162U (en) | 2023-08-03 | 2023-08-03 | Miniature diaphragm water pump with self-discharging pressure backflow protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452162U (en) |
-
2023
- 2023-08-03 CN CN202322077347.3U patent/CN220452162U/en active Active
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