CN214007456U

CN214007456U - Liquid pump and electric appliance

Info

Publication number: CN214007456U
Application number: CN202022048281.1U
Authority: CN
Inventors: 刘杨
Original assignee: Suzhou Fanzhiben Industrial Technology Co Ltd
Current assignee: Suzhou Fanzhiben Industrial Technology Co Ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-08-20
Anticipated expiration: 2030-09-17

Abstract

The utility model discloses a liquid pump and electrical apparatus, it includes: the motor, with the transmission structure that motor output transmission links to each other and with transmission structure output matched with pump body, wherein the pump body includes: the water pump comprises a water inlet, a water outlet, a pump cavity communicated with the water inlet and the water outlet, and a pump core controlled by the output of the transmission structure, wherein the pump core is provided with a pump core cavity which is communicated with the pump cavity and has variable capacity. The utility model discloses large-traffic low flow rate realizes that the pump chamber is full-time stock solution non-seepage leaks, and when the liquid pump core was because of long-term tired or other unexpected impairements of reason, the reliability was prevented leaking by the liquid pump greatly increased, prolongs the life-span of liquid pump simultaneously.

Description

Liquid pump and electric appliance

Technical Field

The utility model relates to a liquid pump and electrical apparatus.

Background

The liquid pump is a machine for conveying liquid or pressurizing liquid, and it can transfer the mechanical energy of motor or other external energy to liquid to make the energy of liquid increase, and is mainly used for conveying liquid including water, oil and acid-alkali liquor, etc. Various liquid pumps are required for household appliances, automobiles, ships, aerospace and other appliances. However, the sealing structure is an important ring in the liquid pump, and when the pump core of the liquid pump is accidentally damaged due to long-term fatigue or other reasons, the whole liquid pump can be failed to work.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the liquid pump and the electric appliance have the advantages that the liquid pump and the electric appliance are high in flow rate and low in flow rate, the full-time liquid storage of the pump cavity is achieved without leakage, when the pump core of the liquid pump is damaged accidentally due to long-term fatigue or other reasons, the leakage prevention function of the liquid pump is greatly improved, and meanwhile the service life of the liquid pump is prolonged.

The utility model discloses a first technical scheme is: a liquid pump, comprising: the motor, with the transmission structure that motor output transmission links to each other and with transmission structure output matched with pump body one, wherein pump body one includes: the water pump comprises a first water inlet, a first water outlet, a first pump cavity communicated with the first water inlet and the first water outlet, and a first pump core controlled by the output of the transmission structure, wherein the first pump core is provided with a pump core cavity which is communicated with the first pump cavity and has variable capacity.

On the basis of the technical scheme, the method further comprises the following subsidiary technical scheme:

preferably, the first pump core is made of deformable plastic or rubber material.

Preferably, the water outlet valve is positioned on the upstream of the water outlet I and only allows one-way output.

Preferably, the inlet valve and the outlet valve are duck bill valves.

Preferably, the motor comprises an output gear, and the transmission structure comprises a primary gear engaged with the output gear, a secondary gear engaged with the primary gear, a cam driven to rotate by a secondary shaft of the secondary gear, a push rod seat driven by the cam, and a first push rod with one end connected with the push rod seat and the other end connected with the first pump core.

Preferably, the pump further comprises a first guide sleeve at least partially accommodating the first push rod and the first pump core, and a first sealing ring positioned between the first guide sleeve and the first push rod.

The second technical scheme of the utility model is: an electric appliance with a liquid pump in the first technical scheme comprises the liquid pump, wherein the liquid pump comprises a motor, a transmission structure connected with the output transmission of the motor, and a pump body matched with the output of the transmission structure, wherein the pump body comprises: the water pump comprises a first water inlet, a first water outlet, a first pump cavity communicated with the first water inlet and the first water outlet, and a first pump core controlled by the output of the transmission structure, wherein the first pump core is provided with a pump core cavity which is communicated with the first pump cavity and has variable capacity.

The third technical proposal of the utility model is that: a liquid pump comprises a second pump body and an electromagnetic part which is in action fit with the second pump body, wherein the second pump body comprises: the water pump comprises a water inlet II, a water outlet II, a pump cavity II communicated with the water inlet and the water outlet II, and a pump core II controlled by the output of the electromagnetic part, wherein the pump core II is made of deformable plastic or rubber materials.

Preferably, the pump body comprises a second guide sleeve at least partially accommodating the second pump core and a second sealing ring positioned between the second guide sleeve and the second pump body, wherein the second pump core is provided with a pump core cavity which is communicated with the second pump cavity and has variable capacity.

Preferably, the electromagnetic part comprises a second push rod accommodated by the guide sleeve, a coil which is magnetically induced with the second push rod and surrounds the second push rod, a push rod core which is arranged in the second push rod and is provided with a limiting part, a return spring which is sleeved on the second push rod, and a clamping ring which is arranged on the second push rod and fixes one end of the return spring.

The utility model has the advantages that: the large-traffic low flow rate has avoided traditional liquid pump to realize really the separation of liquid and electrical apparatus because the transmission, has realized that the pump chamber is the liquid storage leak-proof at all times, and when the liquid pump core was because of long-term fatigue or other reasons accident impaired, leak protection O type circle began to replace pump core work, greatly increased the reliability that the liquid pump was prevented leaking, prolonged the life-span of liquid pump simultaneously.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a perspective assembly view of a first embodiment of the present invention;

fig. 2 is a cross-sectional view of the first embodiment of the present invention at a first viewing angle;

fig. 3 is a cross-sectional view of the first embodiment of the present invention from a second perspective;

fig. 4 is a cross-sectional view of the first embodiment of the present invention from a third perspective;

fig. 5 is an exploded perspective view of a first embodiment of the present invention;

fig. 6 is a cross-sectional view of a second embodiment of the present invention;

fig. 7 is a perspective assembly view of a second embodiment of the present invention.

Detailed Description

Example (b): as shown in fig. 1-5, a first embodiment of a fluid pump is disclosed, which includes a motor 100, a transmission structure 200 drivingly connected to an output of the motor 100, and a pump body 300 drivingly engaged to an output of the transmission structure 200.

The motor 100 includes an output gear 110 on an output shaft of the motor, and the motor 100 is preferably a dc brushed or brushless motor. Wherein the direction of the output shaft of the motor is perpendicular to the moving direction of the first pump core 330. The motor 100 is provided with a motor holder 120 engaged with the transmission structure 200.

The transmission structure 200 includes a gear box 204 fixedly connected to the motor fixing frame 120, a gear box cover 206 hermetically fitted to the gear box 204, a first-stage gear 210 received by the gear box 204 and engaged with the output gear 110, a second-stage gear 220 received by the gear box 204 and engaged with the first-stage gear 210, a cam 230 driven to rotate by a second-stage shaft 222 of the second-stage gear 220, a push rod holder 240 driven by the cam 230, and a push rod one 250 having one end connected to the push rod holder 240 and the other end connected to the pump core one 330. The number of gears of the primary gear 210 is greater than that of the output gear 110 and less than that of the secondary gear 220. One end of the push rod base 240 is inserted into the inner cavity of the push rod 250, and the other end is provided with a push rod base shaft 242 and a push rod base bearing 270 which is sleeved on the push rod base shaft 242 and is in abutting contact with the cam 230. The gearbox cavity formed by the gearbox housing 204 and the gearbox cover 206 accommodates at least the primary gear 210, the secondary gear 220, the cam 230, the pushrod seat 240, the first pushrod 250, and the like. The primary gear 210 is provided with a primary shaft 212. The secondary shaft 222 passes through the secondary gear 220, the cam 230, and both ends are connected to the secondary bearings 272. The primary shaft 212, the secondary shaft 222 and the push rod seat shaft 242 are parallel to each other.

The pump body one 300 includes: the pump comprises a first water inlet 312, a first water outlet 314, a first pump cavity 310 communicated with the first water inlet 312 and the first water outlet 314, a water inlet valve 316 which is positioned at the downstream of the first water inlet 312 and only allows one-way input, a water outlet valve 318 which is positioned at the upstream of the first water outlet 314 and only allows one-way output, a first pump core 330 controlled by the output of the transmission structure 200, a first guide sleeve 320 at least partially accommodating the first push rod 250 and the first pump core 330, a first sealing ring 262 positioned between the first guide sleeve 320 and the first push rod 250, and a spring 260 arranged between the first push rod seat 240 and the first guide sleeve 320, wherein the first pump core 330 is provided with a pump core cavity 332 which is communicated with the first pump cavity 310 and has variable capacity. The first pump core 330 is made of deformable plastic or rubber material. The inlet valve 316 and the outlet valve 318 are duck bill valves.

When the device works, the motor 100 drives the output gear 110 to transmit power to the primary gear 210, the primary gear 210 transmits power to the secondary gear 220, and the secondary gear 220 drives the cam 230 to rotate; the cam 230 rotates to push the push rod base bearing 270 to rotate, so as to drive the push rod base 240 and the push rod one 250 to linearly move, thereby compressing the pump core one 330, the pump core one 330 is pressed to generate recoverable elastic deformation, the capacity of the pump core cavity 332 is reduced, meanwhile, the water inlet valve 316 is pressed by the internal liquid medium to be closed, the water inlet port one 312 stops replenishing the liquid medium into the pump cavity one 310, the water outlet valve 318 is pressed by the internal liquid medium to be opened, and the water outlet port one 314 sprays the liquid medium outwards.

When the work is stopped, the push rod seat 240 drives the push rod seat bearing 270, the push rod one 250 and the pump core one 330 to release and compress under the action of the spring 260, the pump core one 330 elastically deforms and recovers, at this time, the water inlet valve 316 is squeezed by external liquid media to be opened, the water inlet port one 312 starts to supplement the liquid media into the pump cavity one 310, the water outlet valve 318 is squeezed and closed under the action of negative pressure, and the water outlet port one 314 stops spraying the liquid media outwards. When the first pump core 330 does linear reciprocating motion, the first guide sleeve 320 limits and guides the first pump core; when the first pump core 330 is accidentally damaged due to long-term fatigue or other reasons, the first sealing ring 262 is an O-ring and is sleeved outside the first push rod 250 to replace the first pump core 330 to work, so that leakage is prevented.

As shown in fig. 6-7, the present invention discloses a second embodiment of a liquid pump, which adopts an electromagnetic pump structure, and comprises a second pump body and an electromagnetic part 1000 operatively engaged with the second pump body.

The pump body structure is substantially similar to the second pump body 300 of the first embodiment, and includes: the second water inlet 3102, the second water outlet 3104, the second pump cavity 3100 communicated with the second water inlet 3102 and the second water outlet 3104, a water inlet valve which is positioned at the downstream of the second water inlet 3102 and only allows one-way input, a water outlet valve which is positioned at the upstream of the second water outlet 3104 and only allows one-way output, the second pump core 3300, the second guide sleeve which at least partially accommodates the second pump core 3300, and the second sealing ring which is positioned between the second guide sleeve and the second pump body. The second pump core 3300 is identical to the first pump core 330 of the first embodiment in structure.

The electromagnetic part 1000 includes a second push rod 1100 accommodated by the guide sleeve, a coil 1200 magnetically inducted with the second push rod 1100 and surrounding the second push rod 1100, a push rod core 1300 disposed in the second push rod 1100 and provided with a stopper 1310, a return spring 1400 sleeved on the second push rod 1100, and a collar 1410 disposed on the second push rod 1100 and fixing one end of the return spring 1400. When the coil 1200 is electrified, the second push rod 1100 linearly acts under the influence of a magnetic field, so that the guide sleeve is driven to perform compression operation on the second pump core 3300, the return spring 1400 is extruded, meanwhile, the second pump core 3300 is extruded to generate recoverable elastic deformation, the capacity of a pump core cavity is reduced, meanwhile, the water inlet valve is extruded by the internal liquid medium to be closed, the second water inlet 3102 stops supplementing the liquid medium into the second pump cavity 3100, the water outlet valve is extruded by the internal liquid medium to be opened, and the second water outlet 3104 outwards sprays the liquid medium; when the coil 1200 is de-energized, the magnetic force of the second push rod 1100 disappears, and the second push rod drives the guide sleeve to move towards the second pump core 3300 to release and compress under the action of the return spring 1400, the second pump core 3300 elastically deforms and recovers, at this time, the water inlet valve is squeezed by external liquid medium to be opened, the second water inlet 3102 starts to supplement the liquid medium into the second pump cavity 3100, the water outlet valve is squeezed and closed under the action of negative pressure, and the second water outlet 3104 stops spraying the liquid medium outwards. One end of the second plunger 1100 continues to move until it contacts the stopper 1310 of the plunger core 1300.

Also disclosed is a third embodiment of an appliance having the liquid pump of the first embodiment, preferably a household kitchen appliance or a water fountain.

The utility model has the advantages of it is following:

1. the device has the characteristics of large flow and low flow rate, and liquid is not easy to splash when in use;

2. the separation of the moving part and the electric device is realized, the phenomenon that the traditional liquid pump cannot really realize the separation of liquid and the electric device due to transmission is avoided, and the full-time liquid storage and leakage prevention of the pump cavity are realized;

3. can bear the scouring of acid, alkali, salt and other liquids under the low pressure state;

4. when the pump core of the liquid pump is accidentally damaged due to long-term fatigue or other reasons, the leakage-proof O-shaped ring starts to replace the pump core to work, so that the leakage-proof reliability of the liquid pump is greatly improved, and the service life of the liquid pump is prolonged.

The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical solution of the present invention should be covered within the protection scope of the present invention.

Claims

1. A fluid pump, comprising a motor (100), a transmission structure (200) drivingly connected to an output of the motor (100), and a first pump body (300) drivingly coupled to an output of the transmission structure (200), wherein the first pump body (300) comprises: the pump comprises a first water inlet (312), a first water outlet (314), a first pump cavity (310) communicated with the first water inlet and the first water outlet (312 and 314), and a first pump core (330) controlled by the output of the transmission structure (200), wherein the first pump core (330) is provided with a variable-capacity pump core cavity (332) communicated with the first pump cavity (310).

2. A fluid pump as defined in claim 1, wherein: the first pump core (330) is made of deformable plastic or rubber materials.

3. A fluid pump according to claim 2, further comprising an inlet valve (316) downstream of the first inlet (312) and allowing only one-way input, and an outlet valve (318) upstream of the first outlet (314) and allowing only one-way output.

4. A fluid pump as defined in claim 3, wherein: the inlet valve (316) and the outlet valve (318) are duckbill valves.

5. A fluid pump as claimed in claim 1 or 2 or 3 or 4, wherein: the motor (100) comprises an output gear (110), the transmission structure comprises a primary gear (210) meshed with the output gear (110), a secondary gear (220) meshed with the primary gear (210), a cam (230) driven to rotate by a secondary shaft (222) of the secondary gear (220), a push rod seat (240) driven by the cam (230), and a first push rod (250) with one end connected with the push rod seat (240) and the other end connected with a first pump core (330).

6. A fluid pump according to claim 5, further comprising a first guide (320) at least partially housing the first pushrod (250) and the first pump core (330), and a first seal (262) disposed between the first guide (320) and the first pushrod (250).

7. An electric appliance, characterized in that it is a household kitchen appliance or a water dispenser, and comprises a liquid pump, and the liquid pump comprises a motor (100), a transmission structure (200) connected with the output transmission of the motor (100), and a first pump body (300) matched with the output of the transmission structure (200), wherein the first pump body (300) comprises: the pump comprises a first water inlet (312), a first water outlet (314), a first pump cavity (310) communicated with the first water inlet and the first water outlet (312 and 314), and a first pump core (330) controlled by the output of the transmission structure (200), wherein the first pump core (330) is provided with a variable-capacity pump core cavity (332) communicated with the first pump cavity (310).

8. A liquid pump is characterized by comprising a second pump body and an electromagnetic part (1000) which is in action fit with the second pump body, wherein the pump body comprises: the electromagnetic pump comprises a second water inlet (3102), a second water outlet (3104), a second pump cavity (3100) communicated with the second water inlet and the second water outlet (3102, 3104), and a second pump core (3300) controlled by the output of the electromagnetic part (1000), wherein the second pump core (3300) is made of deformable plastic or rubber material.

9. A fluid pump as defined in claim 8, wherein: the second pump body comprises a guide sleeve at least partially accommodating the second pump core (3300) and a second sealing ring positioned between the guide sleeve and the second pump body, wherein the second pump core (3300) is provided with a variable-capacity pump core cavity communicated with the second pump cavity (3100).

10. A fluid pump as defined in claim 9, wherein: the electromagnetic part (1000) comprises a second push rod (1100) accommodated by the second guide sleeve, a coil (1200) which is magnetically induced with the second push rod (1100) and surrounds the second push rod (1100), a push rod core (1300) which is arranged in the second push rod (1100) and is provided with a limiting piece (1310), a return spring (1400) sleeved on the second push rod (1100), and a clamping ring (1410) which is arranged on the second push rod (1100) and fixes one end of the return spring (1400).