CN217176811U

CN217176811U - Liquid feeding device

Info

Publication number: CN217176811U
Application number: CN202220165493.4U
Authority: CN
Inventors: 俞云良; 黄柏林; 廖鹏志
Original assignee: Guangdong Saipu Appliances Manufacturing Co ltd
Current assignee: Guangdong Saipu Appliances Manufacturing Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-08-12
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a liquid throwing device, which comprises a driver, an installation cavity, a delivery pump and a piston cylinder, wherein the driver is arranged at the top of the installation cavity, the piston cylinder is arranged at the bottom of the installation cavity, the top of the piston cylinder is communicated with the bottom of the installation cavity, and a piston assembly is arranged inside the piston cylinder; the delivery pump is connected with the output end of the piston cylinder, a water inlet and a water outlet are arranged on the delivery pump, and check valves are arranged at the water inlet and the water outlet; a driving wheel assembly is arranged in the mounting cavity, a driving gear is arranged at the driving end of the driver and is used for driving the driving wheel assembly to rotate, a movable push rod is arranged on the driving wheel assembly, and the push rod pushes a piston assembly arranged on the push rod to reciprocate along with the rotation of the driving wheel assembly; a microswitch is arranged in the installation cavity, a trigger bump is arranged in the middle of the push rod, and the microswitch is triggered by the back and forth movement of the push rod. The liquid feeding device solves the problem that the feeding amount of the washing liquid in the dish washer is difficult to control.

Description

Liquid feeding device

Technical Field

The utility model relates to a technical field, especially a liquid are put in to liquid and are put in device.

Background

In recent years, the dish washing machine gradually becomes one of the indispensable kitchen appliances in the family of people, the popularization of the dish washing machine not only brings convenience to people, but also saves the time taken by people for washing dishes after meals; traditional dish washer generally includes tableware rack, washing pump and drain pump etc. on the market, and the washing pump is used for throwing in the washing liquid to the tableware, and what the washing pump generally adopted is two-chamber gear pump, can satisfy throwing in alone of two kinds of washing liquids, drives this kind of extruded article extrusion of connecting rod through the rotation of gear, but the extrusion effect of this kind of extruded article is relatively poor, and is difficult to control the volume of throwing in of washing liquid, causes the waste of unnecessary washing liquid.

SUMMERY OF THE UTILITY MODEL

To the above defect, the utility model aims to provide a device is put in to liquid, the purpose is solving the problem that extruded article extrusion effect in the dish washer is poor and be difficult to control washing liquid input volume.

To achieve the purpose, the utility model adopts the following technical proposal:

a liquid throwing device comprises a driver, an installation cavity, a delivery pump and a piston cylinder, wherein the driver is arranged at the top of the installation cavity, the piston cylinder is arranged at the bottom of the installation cavity, the top of the piston cylinder is communicated with the bottom of the installation cavity, and a piston assembly is arranged inside the piston cylinder;

the delivery pump is connected with the output end of the piston cylinder, a water inlet and a water outlet are arranged on the delivery pump, and check valves are arranged at the water inlet and the water outlet;

a driving wheel assembly is installed in the installation cavity, a driving gear is installed at the driving end of the driver and used for driving the driving wheel assembly to rotate, a movable push rod is installed on the driving wheel assembly, and the push rod pushes the piston assembly to move back and forth along with the rotation of the driving wheel assembly; the piston assembly is arranged on the push rod; the installation cavity is internally provided with a microswitch, the middle part of the push rod is provided with a trigger bump, and the microswitch is triggered by the back-and-forth movement of the push rod.

Preferably, the piston assembly comprises a piston rod and a piston head, the piston rod is connected with the push rod, the piston head is arranged at the bottom of the piston rod, and the piston head is abutted to the top of the piston cylinder.

Preferably, the number of the driving wheel assemblies is 2, the driving wheel assemblies are respectively distributed in a bilateral symmetry manner, each driving wheel assembly comprises a driving wheel and a driven wheel, the driving wheel is rotatably arranged in the installation cavity through a central shaft, a self-locking assembly is arranged on the driving wheel, a central hole matched with the central shaft is formed in the driven wheel, and a concave arc is arranged on the periphery of a rotating shaft of the driven wheel; when the concave arc is abutted against the abutting end of the self-locking assembly, the driven wheel rotates; when the concave arc is separated from the abutting end of the self-locking assembly, the driven wheel stops rotating.

Preferably, the self-locking assembly comprises a self-locking claw and a self-locking block, a spring is arranged between the self-locking claw and the self-locking block and used for resetting the self-locking claw, and the abutting end is arranged at the end part of the self-locking claw.

Preferably, an eccentric convex block is arranged on the driven wheel, a sliding groove is formed in one end of the push rod, and the eccentric convex block can be slidably arranged in the sliding groove.

Preferably, the number of the delivery pumps is 2, and the delivery pumps are respectively and symmetrically distributed right below the two movable wheel assemblies.

Preferably, the water inlet is vertically arranged on the delivery pump, and the water outlet is arranged in parallel on the delivery pump.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

1. the driver drives the driving gear, the driving gear drives the two driving wheel assemblies to rotate, one driving wheel assembly drives the push rod to move back and forth in the piston cylinder, and therefore the microswitch is triggered to control the feeding amount of the washing liquid.

2. The block-shaped piston head is used as an extrusion piece, so that the extrusion effect can be effectively improved.

Drawings

Fig. 1 is a schematic structural view of a liquid dispensing device of the present invention;

fig. 2 is a schematic structural view of the inside of a liquid dispensing device of the present invention;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 3 taken along A-A;

fig. 5 is an exploded view of the structure of the traction sheave assembly.

Wherein: 1. a drive device; 2. installing a cavity; 3. a delivery pump; 4. a drive gear; 5. a traction wheel assembly; 6. a push rod; 7. a piston cylinder; 8. a microswitch; 31. a water inlet; 32. a water outlet; 51. a driving wheel; 52. a driven wheel; 60. a piston assembly; 61. triggering the projection; 62. a chute; 500. a central shaft; 501. a central bore; 510. a self-locking assembly; 520. a concave arc; 521. an eccentric projection; 601. a piston rod; 602. a piston head; 5101. a self-locking claw; 5102. self-locking block.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "spliced" and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A liquid throwing device comprises a driver 1, an installation cavity 2, a delivery pump 3 and a piston cylinder 7, wherein the driver 1 is arranged at the top of the installation cavity 2, the piston cylinder 7 is arranged at the bottom of the installation cavity 2, the top of the piston cylinder 7 is communicated with the bottom of the installation cavity 2, and a piston assembly 60 is arranged inside the piston cylinder 7;

the delivery pump 3 is connected with the output end of the piston cylinder 7, a water inlet 31 and a water outlet 32 are arranged on the delivery pump 3, and the water inlet 31 and the water outlet 32 are both provided with one-way valves;

a driving wheel assembly 5 is installed in the installation cavity 2, a driving gear 4 is installed at the driving end of the driver 1, the driving gear 4 is used for driving the driving wheel assembly 5 to rotate, a movable push rod 6 is installed on the driving wheel assembly 5, and the push rod 6 pushes the piston assembly 60 to reciprocate along with the rotation of the driving wheel assembly 5; the piston assembly 60 is arranged on the push rod 6; a microswitch 8 is arranged in the mounting cavity 2, a trigger bump 61 is arranged in the middle of the push rod 6, and the microswitch 8 is triggered by the back-and-forth movement of the push rod 6.

In recent years, the dish washing machine gradually becomes one of the indispensable kitchen appliances in the home of people, and the popularization of the dish washing machine not only brings convenience to people, but also saves the time taken by people for washing dishes after meals; traditional dish washer generally includes tableware rack, washing pump and drain pump etc. on the market, and the washing pump is used for throwing in the washing liquid to the tableware, and what the washing pump generally adopted is two-chamber gear pump, can satisfy throwing in alone of two kinds of washing liquids, drives this kind of extruded article extrusion of connecting rod through the rotation of gear, but the extrusion effect of this kind of extruded article is relatively poor, and is difficult to control the volume of throwing in of washing liquid, causes the waste of unnecessary washing liquid.

Specifically, as shown in fig. 1-5, the liquid dispensing device of the present disclosure includes a driver 1, a mounting cavity 2, a delivery pump 3, and a piston cylinder 7, where the driver 1 is disposed at the top of the mounting cavity 2, and the piston cylinder 7 is disposed at the bottom of the mounting cavity 2, further, the driver 1 may be a motor, and the motor may rotate forward and backward; the top of the piston cylinder 7 is communicated with the bottom of the mounting cavity 2, so that the piston assembly 60 in the piston cylinder 7 can move back and forth between the piston cylinder 7 and the mounting cavity 2.

The delivery pump 3 is connected with the output end of the piston cylinder 7, a water inlet 31 and a water outlet 32 are arranged on the delivery pump 3, and the water inlet 31 and the water outlet 32 are both provided with one-way valves. Further, the water inlet 31 is used for inputting the washing liquid into the piston cylinder 7, and the setting of the check valve of the water inlet prevents the washing liquid in the piston cylinder 7 from flowing out of the outside through the water inlet; the water outlet 32 is used for outputting the washing liquid to the outside of the piston cylinder 7, and the arrangement of the water outlet check valve prevents the liquid in the tableware washing cavity from flowing back into the piston rod 7 through the water outlet;

install driving wheel subassembly 5 in the installation cavity 2, drive gear 4 is installed to the drive end of drive end 1, drive end 1 starts and drives drive gear and rotate 4, drive gear 4 drives driving wheel subassembly 5 and rotates, install mobilizable push rod 6 on the driving wheel subassembly 5, the rotation of driving wheel subassembly 5 makes push rod 6 round trip movement in installation cavity 2, push rod 6 is connected in piston assembly 60, the removal of push rod 6 takes piston assembly 60 reciprocating motion in piston cylinder 7, and provide pressure for piston cylinder 7, thereby the suction or the discharge of control washing liquid. Under the action of the one-way valve, when the push rod 6 moves upwards, negative pressure is generated in the piston cylinder 7, and then the water inlet 31 sucks washing liquid under the action of the negative pressure; when the push rod 6 moves downwards, positive pressure is generated in the piston cylinder 7, and the water outlet 32 opens the one-way valve to discharge washing liquid outwards under the action of the positive pressure.

Be equipped with micro-gap switch 8 in the installation cavity 2, the middle part of push rod 6 is equipped with triggers lug 61, and when push rod 6 round trip movement, trigger lug 61 can trigger micro-gap switch 8, and micro-gap switch 8 is used for calculating the number of times of work of control push rod round trip movement to calculate the volume of washing liquid, be favorable to controlling the input volume of washing liquid.

The putting amount of steerable washing liquid is realized through setting up of push rod 6, piston cylinder 7 and micro-gap switch 8 to this scheme, has solved the problem that is difficult to control washing liquid putting amount in the dish washer.

Preferably, the piston assembly 60 comprises a piston rod 601 and a piston head 602, the piston rod 601 is connected with the push rod 6, the piston head 602 is arranged at the bottom of the piston rod 601, and the piston head 602 abuts against the top of the piston cylinder 7.

Specifically, as shown in fig. 4, the piston head 602 is movably disposed in the piston cylinder 7, the piston rod 601 is driven to move by the movement of the push rod 6, the piston rod 601 drives the piston head 602 to move in the piston cylinder 7, further, in the prior art, a leather cup is used as an extrusion part, the leather cup is made of rubber, the production cost is low, but the thickness of the leather cup is thin, the leather cup rubs with the inner wall of the piston cylinder for a long time, and is easy to wear.

Preferably, the number of the driving wheel assemblies 5 is 2, the driving wheel assemblies 5 are respectively distributed in bilateral symmetry, each driving wheel assembly 5 comprises a driving wheel 51 and a driven wheel 52, the driving wheel 51 is rotatably arranged in the mounting cavity 1 through a central shaft 500, a self-locking assembly 510 is arranged on the driving wheel 51, a central hole 501 matched with the central shaft 500 is arranged on the driven wheel 52, and a concave arc 520 is arranged on the periphery of a rotating shaft of the driven wheel 52; when the concave arc 520 is abutted against the abutting end of the self-locking assembly 510, the driven wheel 52 rotates; when the concave arc 520 is separated from the opposite end of the self-locking assembly 510, the driven wheel 52 stops rotating.

Specifically, as shown in fig. 4-5, 2 driving wheel assemblies 5 are respectively distributed in bilateral symmetry, each driving wheel assembly 5 includes a driving wheel 51 and a driven wheel 52, the driving wheel 51 is rotatably disposed in the mounting cavity 1 through a central shaft 500, a rotatable self-locking assembly 510 is mounted on the driving wheel 51, a central hole 501 matched with the central shaft 500 is disposed on the driven wheel 52, and a concave arc 520 is disposed on the periphery of a rotating shaft of the driven wheel 52, further, when the self-locking assembly 510 rotates along with the driving wheel 51, the self-locking assembly 510 has two states, the first state is that when the self-locking assembly 510 rotates along with the driving wheel 51 in a forward direction, the abutting end of the self-locking assembly abuts against the concave arc, and under the driving of the driving wheel, the abutting end abuts against the concave arc, thereby driving the driven wheel to rotate along with the driven wheel, at this time, the driving wheel and the driven wheel are in an interactive locking state, and the second state is that when the self-locking assembly rotates along with the driving wheel in a reverse direction, the end that offsets of auto-lock subassembly deviates from the concave arc rotation, and the auto-lock subassembly can't drive from the driving wheel rotation this moment for the action wheel rotates for from the driving wheel self-propelled, is the action wheel idle running state this moment, is the unblock state of auto-lock subassembly promptly. The above-mentioned forward rotation may be clockwise rotation or counterclockwise rotation, and when the forward rotation is clockwise rotation, the reverse rotation is counterclockwise rotation, and when the forward rotation is counterclockwise rotation, the reverse rotation is clockwise rotation. To be further described, the driving gear 4 drives the two driving wheels 51 to rotate, wherein the self-locking assembly 510 on one driving wheel 51 is in a locked state, the driven wheel 52 rotates, and thus the push rod 6 is driven to move back and forth, and the self-locking assembly 510 on the other driving wheel 51 is in an unlocked state, and the driven wheel 52 does not rotate.

In this embodiment, the driving wheel 51 and the driven wheel 52 are connected through the central shaft 500 to form a transmission structure, so that the structure of the whole driving wheel assembly 5 is more stable, and the self-locking assembly 510 is more favorable for being matched with the driving wheel assembly 5 to realize the sliding of the push rod 6.

Preferably, the self-locking assembly 510 comprises a self-locking claw 5101 and a self-locking block 5102, a spring is arranged between the self-locking claw 5101 and the self-locking block 5102, the spring is used for resetting the self-locking claw 5101, and the abutting end is arranged at the end of the self-locking claw 5101.

Specifically, as shown in fig. 4, the self-locking assembly 510 includes a self-locking claw 5101 and a self-locking block 5102, a spring is arranged between the self-locking claw 5101 and the self-locking block 5102, when the self-locking claw 5201 rotates along with the driving wheel 51 in the same direction, the spring is in an extended state, the end of the self-locking claw 5101 abuts against the concave arc 520 on the rotating shaft of the driven wheel 52, and the driving wheel 51 drives the driven wheel 52 to rotate; when the self-locking claw 5201 reversely rotates along with the driving wheel 51, the spring is in a compressed state, the end of the self-locking claw 5101 deviates from the concave arc 520 on the rotating shaft of the driven wheel 52, and the driving wheel 51 cannot drive the driven wheel 52 to rotate. In this embodiment, the self-locking structure composed of the self-locking claw 5101, the self-locking block 5102 and the spring has higher structural integrity, and the arrangement of the spring ensures that the self-locking claw 5101 can be timely reset to be in contact with the driven wheel 52, so that the driven wheel 52 can normally operate.

Preferably, the driven wheel 52 is provided with an eccentric protrusion 521, one end of the push rod 6 is provided with a sliding slot 62, and the eccentric protrusion 521 can be slidably arranged on the sliding slot 62. Specifically, as shown in fig. 2, the driven wheel 52 is provided with an eccentric protrusion 521, one end of the push rod 6 is provided with a sliding slot 62, the eccentric protrusion 521 is slidably disposed on the sliding slot 62, and the eccentric protrusion 521 pushes the push rod 6 to reciprocate through the rotation of the driven wheel 52.

Preferably, the number of the delivery pumps 3 is 2, and the delivery pumps are respectively and symmetrically distributed right below the two movable wheel assemblies 5. Specifically, as shown in fig. 2, 2 delivery pumps 3 are respectively and symmetrically distributed under two driving wheel assemblies 5, and the arrangement of the two delivery pumps is beneficial to adding different washing liquids, so that the washing effect and efficiency are improved. Further, the detergent may be a dishwashing liquid or a dishwashing agent.

Preferably, the water inlet 31 is vertically arranged on the delivery pump 3, and the water outlet 32 is arranged in parallel on the delivery pump 3. Specifically, as shown in fig. 1, the water inlet 31 is vertically arranged on the delivery pump 3 and connected with the washing liquid placing device of the dishwasher, so that the washing liquid can conveniently flow into the water inlet 31; the water outlet 32 is arranged in the delivery pump 3 in parallel, so that the connection with the wall plane of the tableware washing cavity of the dish washer is facilitated, and the liquid outlet efficiency of the water outlet 32 is improved.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A liquid dispensing device, comprising: the device comprises a driver, an installation cavity, a delivery pump and a piston cylinder, wherein the driver is arranged at the top of the installation cavity, the piston cylinder is arranged at the bottom of the installation cavity, the top of the piston cylinder is communicated with the bottom of the installation cavity, and a piston assembly is arranged in the piston cylinder;

2. A liquid delivery device as claimed in claim 1, wherein: the piston assembly comprises a piston rod and a piston head, the piston rod is connected with the push rod, the piston head is arranged at the bottom of the piston rod, and the piston head is abutted to the top of the piston cylinder.

3. A liquid delivery device as claimed in claim 1, wherein: the number of the driving wheel assemblies is 2, the driving wheel assemblies are respectively distributed in a bilateral symmetry manner, each driving wheel assembly comprises a driving wheel and a driven wheel, the driving wheels are rotatably arranged in the installation cavity through central shafts, self-locking assemblies are installed on the driving wheels, central holes matched with the central shafts are formed in the driven wheels, and concave arcs are arranged on the peripheries of rotating shafts of the driven wheels; when the concave arc is abutted against the abutting end of the self-locking assembly, the driven wheel rotates; when the concave arc is separated from the abutting end of the self-locking assembly, the driven wheel stops rotating.

4. A liquid delivery device as claimed in claim 3, wherein: the self-locking assembly comprises a self-locking claw and a self-locking block, a spring is arranged between the self-locking claw and the self-locking block and used for resetting the self-locking claw, and the abutting end is arranged at the end part of the self-locking claw.

5. A liquid delivery device as claimed in claim 3, wherein: the driven wheel is provided with an eccentric convex block, one end of the push rod is provided with a sliding groove, and the eccentric convex block can be slidably arranged in the sliding groove.

6. A liquid delivery device as claimed in claim 1, wherein: the number of the delivery pumps is 2, and the delivery pumps are respectively and symmetrically distributed right below the two driving wheel assemblies.

7. A liquid delivery device as claimed in claim 1, wherein: the water inlet is vertically arranged on the conveying pump, and the water outlet is arranged in parallel on the conveying pump.