CN217481553U - Liquid pump, liquid supply device and closestool equipment - Google Patents

Abstract

The utility model relates to a liquid pump, confession liquid device and closestool equipment. The liquid pump is used for closestool equipment, the liquid pump includes motor, shaft coupling, transmission shaft and impeller, the one end coaxial coupling of shaft coupling the pivot of motor, the one end coaxial coupling of transmission shaft the other end of shaft coupling, impeller coaxial coupling the other end of transmission shaft. The liquid pump passes through pivot and the transmission shaft of shaft coupling coaxial coupling motor to install the impeller on the transmission shaft, and realized the coaxial coupling between the pivot of motor and the impeller, need not to adopt longer pivot, avoided the interference between impeller and other structures, guaranteed the axiality between the pivot of motor and the impeller.

Description

Liquid pump, liquid supply device and closestool equipment

Technical Field

The utility model relates to a sanitary bath equipment technical field especially relates to a liquid pump, supplies liquid device and closestool equipment.

Background

With the continuous improvement of living standard of people, various functional closestool devices appear. As the demand for toilet equipment is increasing, high-end toilet equipment is equipped with an automatic flushing function and at the same time with a liquid pump. The liquid pump can output high-pressure liquid to meet the requirements of consumers on different washing effects.

The liquid pump generally includes a motor and an impeller, which is mounted on a shaft of the motor. Because the distance between the motor and the impeller is larger, the rotating shaft is also longer. When the rotating shaft is long, the coaxiality between the rotating shaft and the impeller is difficult to ensure, however, the impeller can generate large shaking due to slight bending of the rotating shaft, interference between the impeller and other structures is easy to generate, the impeller and other structures are easy to wear, and noise can be generated.

SUMMERY OF THE UTILITY MODEL

Based on this, provide a liquid pump, aim at guaranteeing the axiality between the pivot of motor and the impeller.

A liquid pump for a toilet apparatus, the liquid pump comprising:

a motor;

one end of the coupler is coaxially connected with a rotating shaft of the motor;

one end of the transmission shaft is coaxially connected with the other end of the coupler; and

and the impeller is coaxially connected with the other end of the transmission shaft.

In one embodiment, the coupling comprises:

the first coupling structure is coaxially connected with the rotating shaft;

a second coupling structure coaxially connecting the drive shaft; and

the middle structure is respectively and coaxially connected with the first coupling structure and the second coupling structure, and the middle structure is an elastic structure.

In one embodiment, at least one of the first and second coupling structures is a resilient structure.

In one embodiment, the first coupling structure, the intermediate structure and the second coupling structure are integrally formed.

In one embodiment, the first coupling structure and the second coupling structure are each rigid structures.

In one embodiment, the coupling is a quincunx coupling.

In one embodiment, the second coupling structure is provided with a shaft hole, the shaft hole comprises a positioning hole section and a sleeving hole section which are communicated, and the positioning hole section is provided with a positioning plane; one end of the transmission shaft is provided with a positioning tangent plane, the positioning plane is matched with the positioning tangent plane, and the sleeving hole section surrounds the peripheral surface of the transmission shaft.

In one embodiment, the liquid pump further comprises:

the motor and the coupler are arranged in the shell; and

the guide sleeve comprises a guide piece and a guide cylinder piece;

one end of the flow guide piece is sleeved with the impeller, the other end of the flow guide piece is communicated with the guide cylinder piece, the flow guide piece comprises a plurality of flow guide blades, and the plurality of flow guide blades are arranged corresponding to the impeller;

the guide cylinder part comprises a bending part and a connecting part, the connecting part is connected with the bending part and the shell, the bending part is provided with a bending flow channel, one end of the bending flow channel is communicated with the other end of the flow guide part, and the transmission shaft penetrates through the connecting part and extends into the bending flow channel.

A liquid supply apparatus, comprising:

a liquid tank; and

a liquid pump mounted to the liquid tank;

the liquid pump is as described above.

A toilet apparatus, comprising:

a toilet seat device; and

the liquid supply device is communicated with the toilet bowl device through a pipeline;

the liquid supply device is the liquid supply device.

Above-mentioned liquid pump through pivot and the transmission shaft of shaft coupling coaxial coupling motor to install the impeller on the transmission shaft, and realized the coaxial coupling between the pivot of motor and the impeller, need not to adopt longer pivot, avoided the interference between impeller and other structures, guaranteed the axiality between the pivot of motor and the impeller.

Drawings

Fig. 1 is a schematic structural view of a liquid pump according to an embodiment of the present invention;

FIG. 2 is an exploded view of the liquid pump of FIG. 1;

FIG. 3 is a schematic view of the coupling of the fluid pump of FIG. 2 from a perspective;

FIG. 4 is a schematic view of the coupling of FIG. 3 from another perspective;

FIG. 5 is a top plan view of the liquid pump of FIG. 1;

FIG. 6 is a cross-sectional view of the liquid pump of FIG. 5 taken along line I-I;

fig. 7 is a schematic structural view of a coupling of a liquid pump according to another embodiment of the present invention;

FIG. 8 is an exploded view of the coupling of FIG. 7;

FIG. 9 is a sectional view showing a partial structure of a liquid supply apparatus according to an embodiment of the present invention;

fig. 10 is a schematic block diagram of a toilet apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, fig. 1 shows a schematic structural diagram of a liquid pump according to an embodiment of the present invention, and fig. 2 shows an exploded view of the liquid pump in fig. 1, which provides a liquid pump 100 for a toilet device according to an embodiment of the present invention. The liquid pump 100 includes a housing 200, a motor 300, a baffle 400, a drive assembly 500, and an impeller 600, wherein the motor 300 is mounted within the housing 200. The flow guide sleeve 400 is connected to the housing 200 and has a flow guide inlet 402 and a flow guide outlet 404, and the flow guide inlet 402 and the flow guide outlet 404 are not on the same axis. The flow guide sleeve 400 can guide the liquid entering the flow guide sleeve to achieve the expected effect of the output liquid. The transmission assembly 500 is respectively connected to the rotating shaft 302 of the motor 300 and the impeller 600, and transmits the torque output from the motor 300 to the impeller 600 to drive the impeller 600 to rotate. The impeller 600 is located in the guide sleeve 400, which can be disposed in the guide inlet 402, and has a better effect of sucking liquid.

When the liquid pump 100 of this embodiment works, the rotating shaft 302 of the motor 300 rotates, the transmission assembly 500 transmits the torque to the impeller 600, the impeller 600 rotates, and the liquid is sucked into the guide sleeve 400 through the guide inlet 402 and flows out of the guide outlet 404 after being guided by the guide sleeve 400, so that the pressurization and acceleration effects of the liquid can be realized, and further, the requirements of consumers on different flushing effects of toilet equipment can be met.

In this embodiment, the transmission assembly 500 includes a coupling 510 and a transmission shaft 520. One end of the coupling 510 is coaxially connected to the rotating shaft 302 of the motor 300, one end of the transmission shaft 520 is coaxially connected to the other end of the coupling 510, and the impeller 600 is coaxially connected to the other end of the transmission shaft 520. The rotating shaft 302 and the transmission shaft 520 of the motor 300 are coaxially connected through the coupler 510, and the impeller 600 is mounted on the transmission shaft 520, so that the coaxial connection between the rotating shaft 302 of the motor 300 and the impeller 600 is realized, a longer rotating shaft 302 is not required, the interference between the impeller 600 and other structures is avoided, and the coaxiality between the rotating shaft 302 of the motor 300 and the impeller 600 is ensured.

With reference to fig. 3 and 4, fig. 3 shows a schematic configuration of a coupling of the liquid pump according to the present embodiment from one perspective, and fig. 4 shows a schematic configuration of the coupling of fig. 3 from another perspective, wherein the coupling 510 comprises a first coupling structure 511, an intermediate structure 512 and a second coupling structure 513. The first coupling structure 511 is coaxially connected to the rotating shaft 302. The second coupling structure 513 is coaxially connected to the drive shaft 520. The intermediate structure 512 is coaxially connected to the first coupling structure 511 and the second coupling structure 513, and the intermediate structure 512 is an elastic structure. Because the intermediate structure 512 is an elastic structure, the first coupling structure 511 and the second coupling structure 513 are allowed to have independent axial displacements, and the coaxial alignment connecting the first coupling structure 511 and the second coupling structure 513 can have a certain deviation, so that the requirement of coaxiality between the rotating shaft 302 of the motor 300 and the impeller 600 is reduced, the liquid pump 100 can be manufactured more easily, and the production cost is reduced.

In this embodiment, the first coupling structure 511 and the second coupling structure 513 are both elastic structures, that is, the entire coupling 510 is an elastic structure, which has the capability of compensating the relative displacement between the two axes, and also has the functions of buffering and damping vibration. It is understood that in other embodiments, the first coupling structure 511 is a resilient structure and the second coupling structure 513 is a rigid structure; alternatively, the first coupling structure 511 is a rigid structure and the second coupling structure 513 is a resilient structure.

Furthermore, the first coupling structure 511, the middle structure 512 and the second coupling structure 513 are integrally formed, so that the processing and the forming are convenient, and the connection reliability and the overall strength between different structures are ensured. It is understood that in other embodiments, the first coupling structure 511 and the second coupling structure 513 may be connected to the intermediate structure 512 by connectors, such as ferrules or screws, etc.

In this embodiment, the first coupling structure 511, the middle structure 512, and the second coupling structure 513 are integrally formed by plastic molding, and the material of the first coupling structure, the middle structure, and the second coupling structure may be, but is not limited to, Thermoplastic Polyurethane (TPU), so as to meet the requirements of elasticity and connection strength. However, in other embodiments, the coupling 510 may be made of other engineering plastics with satisfactory performance, or may be made of rubber with satisfactory performance.

Specifically, the first coupling structure 511 is sleeved on the rotating shaft 302 of the motor 300, and the first coupling structure 511 and the rotating shaft 302 are connected through a screw, so as to achieve a fixed connection.

The second coupling structure 513 is provided with a shaft hole 514, the shaft hole 514 comprises a positioning hole section 515 and a sleeve hole section 516 which are communicated, and the positioning hole section 515 is provided with a positioning plane 517. One end of the transmission shaft 520 is provided with a positioning tangent plane 522, the positioning plane 517 is matched with the positioning tangent plane 522, and the outer peripheral surface of the transmission shaft 520 is surrounded by the sleeve hole section 516. The positioning hole section 515 and the socket hole section 516 are sequentially sleeved on the end of the transmission shaft 520, and the positioning plane 517 is matched with the positioning tangent plane 522, so that the stability of coaxial connection between the second coupling structure 513 and the transmission shaft 520 can be improved. Likewise, the fixed connection is further enhanced by the screws through the second coupling structure 513 and the drive shaft 520.

Referring to fig. 2, the casing 200 includes a first casing 210 and a second casing 220, one end of the second casing 220 is connected to the first casing 210, and the other end of the second casing 220 is connected to a flow guide sleeve 400. The motor 300 is installed in the first housing 210, the coupling 510 is installed in the second housing, and the transmission shaft 520 penetrates the flow guide sleeve 400 through the second housing 220 and extends into the flow guide sleeve 400.

Referring to fig. 5 and 6, fig. 5 shows a top view of the liquid pump of the present embodiment, and fig. 6 shows a cross-sectional view of the liquid pump of fig. 5 taken along the line I-I, wherein the guide sleeve 400 comprises a guide member 410 and a guide barrel member 420. One end of the flow guide member 410 surrounds the impeller 600, the other end of the flow guide member 410 is communicated with the guide cylinder member 420, and the flow guide inlet 402 is formed at one end of the flow guide member 410 surrounding the impeller 600. The flow guide 410 includes a plurality of flow guide vanes 412, and the plurality of flow guide vanes 412 are disposed corresponding to the impeller 600. The guide cylinder member 420 includes a bent portion 422 and a connection portion 424, and the connection portion 424 connects the bent portion 422 and the second housing 220 of the casing 200. The bending part 422 is provided with a bending flow passage 426, one end of the bending flow passage 426 is communicated with the other end of the flow guide element 410, the transmission shaft 520 penetrates through the bending part 422 through the connecting part 424 and extends into the bending flow passage 426, and the flow guide outlet 404 is formed at the other end of the bending flow passage 426. When the impeller 600 is operated, the liquid enters the flow guide member 410 under the pressure, forms a vortex after passing through the impeller 600, is changed into a direct current under the flow guide of the flow guide vanes 412, and finally changes the flow direction through the curved flow channel 426 of the guide cylinder member 420, thereby increasing the pressure and the flow rate of the liquid.

Referring to fig. 2, in the present embodiment, the connecting portion 424 is fixedly connected to the second housing 220 by a screw. The bending portion 422 is provided with a sealing seat 428, the sealing seat 428 is arranged corresponding to the position of the bending portion 422 penetrated by the transmission shaft 520, a sealing ring 430 is arranged in the sealing seat 428, and the sealing ring 430 tightly covers the transmission shaft 520 and is tightly attached to the inner circumferential surface of the sealing seat 428. The sealing seat 428 is further provided with a sealing cover 432, and the sealing cover 432 presses the sealing ring 430 in the sealing seat 428. By providing the seal holder 428, the seal ring 430, and the seal cover 432 to seal the penetrated position, the liquid is prevented from flowing out from the penetrated position.

In this embodiment, a connecting structure 414 is disposed in the flow guiding element 410, the plurality of flow guiding vanes 412 are respectively connected to the connecting structure 414, and the transmission shaft 520 penetrates through the connecting structure 414 and is fixedly connected to the transmission shaft 520 and the connecting structure 414 through the bearing 416.

In this embodiment, the impeller 600 includes a body 610 and a plurality of rotating blades 620 disposed on the body 610. The wheel body 610 is sleeved on the end of the transmission shaft 520 and is fixedly connected with the end of the transmission shaft 520 through a screw.

With reference to fig. 7 and 8, fig. 7 shows a schematic structural diagram of a coupling of a liquid pump according to another embodiment of the present invention, fig. 8 shows an exploded view of the coupling in fig. 7, and the coupling 510 of the liquid pump 100 of this embodiment differs from the coupling 510 of the liquid pump 100 of the previous embodiment as follows:

in this embodiment, the first coupling structure 511 and the second coupling structure 513 are both rigid structures, that is, the middle structure 512 is also an elastic structure, and two ends of the middle structure are respectively coaxially connected to the rigid structures to form an elastic coupling. It also allows for independent axial displacement of the first and second coupling structures 511, 513, and the coaxial alignment connecting the first and second coupling structures 511, 513 may have a certain deviation, thereby reducing the requirement for coaxiality between the rotating shaft 302 of the motor 300 and the impeller 600, making the liquid pump 100 easier to manufacture, and reducing the production cost.

Further, the coupling 510 is a quincunx coupling. However, in other embodiments, the coupling 510 may also be other types of resilient couplings, such as a spring-in-pin coupling, a spring-pin coupling, a tire coupling, a serpentine spring coupling, or a reed coupling, among others.

In this embodiment, the first coupling structure 511 and the second coupling structure 513 are both metal members, the intermediate structure 512 is a plastic member, such as but not limited to Thermoplastic Polyurethane (TPU), and the first coupling structure 511 and the second coupling structure 513 are respectively embedded in the intermediate structure 512. It is understood that in other embodiments, the rigid first and second coupling structures 511, 513 may be coaxially coupled to the intermediate structure 512 by insert molding or may be coaxially coupled to the intermediate structure 512 by a connector.

As for other structures of the liquid pump 100 of this embodiment, which are substantially the same as those of the liquid pump 100 of the above embodiment, specific contents thereof can refer to the above description, and are not repeated herein.

Referring to fig. 9, fig. 9 is a cross-sectional view illustrating a partial structure of a liquid supply device according to an embodiment of the present invention, which provides a liquid supply device 700 including a liquid tank 702 and a liquid pump 100, wherein the liquid pump 100 is installed in the liquid tank 702. The specific structure of the liquid pump 100 refers to the above embodiments, and since the liquid supply device 700 of the present embodiment adopts all technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are also achieved, and are not described in detail herein. The guide sleeve 400 of the liquid pump 100 is located in the liquid tank 702, and the liquid in the liquid tank 702 is pumped, so that the speed and the pressure of the liquid are increased.

In this embodiment, the bottom of the liquid tank 702 is provided with connecting columns 704, the inlet end of the flow guiding sleeve 400 is provided with mounting columns (not numbered), each connecting column 704 is connected with a mounting column by a screw, and the liquid pump 100 is mounted in the liquid tank 702. Obviously, the guide sleeve 400 is located at the bottom end and the motor 300 is located at the top end with respect to the bottom of the tank 702. The tank 702 has an inlet (not shown) that communicates with an external pipe, such as a tap water pipe, for the input of liquid.

Referring to fig. 2, in this embodiment, the working principle of the liquid supply device 700 is as follows:

when the liquid level of the liquid in the liquid tank 702 is higher than the diversion inlet 402 of the diversion sleeve 400, that is, at least part of the diversion sleeve 400 is immersed in the liquid, the motor 300 is energized, the rotating shaft 302 of the motor 300 rotates, the coupling 510 transmits torque to the transmission shaft 520, the transmission shaft 520 drives the impeller 600 to rotate, the liquid sequentially passes through the impeller 600, the diversion blades 412 and the guide barrel part 420 under the action of pressure, and is finally output to the toilet seat device of the toilet equipment from the diversion outlet 404, so that the liquid in the liquid tank 702 is continuously pumped away, and pressurization and acceleration of the liquid are realized;

when the liquid level of the liquid in the liquid tank 702 is lower than the diversion inlet 402 of the diversion sleeve 400, that is, the diversion inlet 402 of the diversion sleeve 400 is higher than the liquid level and is not immersed by the liquid, the liquid in the liquid tank 702 cannot be sucked into the diversion sleeve 400, and the motor 300 stops being energized, the rotating shaft 302 of the motor 300 stops rotating, and further the impeller 600 also stops rotating, at this time, the liquid pumping operation is completed.

Referring to fig. 10, fig. 10 shows a schematic block diagram of a toilet apparatus according to an embodiment of the present invention, an embodiment of the present invention provides a toilet apparatus 800, which includes a toilet seat device 802 and a liquid supply device 700, wherein the liquid supply device 700 is connected to the toilet seat device 802 through a pipeline. The specific structure of the liquid supply device 700 refers to the above embodiments, and since the toilet apparatus 800 of this embodiment adopts all technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are also achieved, and no further description is given here. Obviously, the specific structure of the toilet seat device 802 can refer to the prior art, and will not be described herein.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A liquid pump for a toilet apparatus, the liquid pump comprising:

a motor;

one end of the coupler is coaxially connected with a rotating shaft of the motor;

one end of the transmission shaft is coaxially connected with the other end of the coupler; and

the impeller is coaxially connected with the other end of the transmission shaft.

2. The liquid pump of claim 1, wherein the coupling comprises:

the first coupling structure is coaxially connected with the rotating shaft;

a second coupling structure coaxially connected to the drive shaft; and

the middle structure is respectively and coaxially connected with the first coupling structure and the second coupling structure, and the middle structure is an elastic structure.

3. A liquid pump according to claim 2, wherein at least one of the first and second coupling arrangements is a resilient arrangement.

4. A liquid pump according to claim 2, wherein the first coupling arrangement, the intermediate arrangement and the second coupling arrangement are integrally formed.

5. A liquid pump according to claim 2, wherein the first and second coupling arrangements are each rigid structures.

6. A liquid pump according to claim 5, wherein the coupling is a quincunx coupling.

7. A liquid pump according to any one of claims 2 to 6,

the second coupling structure is provided with a shaft hole, the shaft hole comprises a positioning hole section and a sleeve joint hole section which are communicated, and the positioning hole section is provided with a positioning plane;

one end of the transmission shaft is provided with a positioning tangent plane, the positioning plane is matched with the positioning tangent plane, and the sleeving hole section surrounds the peripheral surface of the transmission shaft.

8. A liquid pump according to any one of claims 1 to 6, further comprising:

the motor and the coupler are arranged in the shell; and

the guide sleeve comprises a guide piece and a guide cylinder piece;

one end of the flow guide piece is sleeved with the impeller, the other end of the flow guide piece is communicated with the guide cylinder piece, the flow guide piece comprises a plurality of flow guide blades, and the plurality of flow guide blades are arranged corresponding to the impeller;

the guide cylinder part comprises a bending part and a connecting part, the connecting part is connected with the bending part and the shell, the bending part is provided with a bending flow channel, one end of the bending flow channel is communicated with the other end of the flow guide part, and the transmission shaft penetrates through the connecting part and extends into the bending flow channel.

9. A liquid supply apparatus, comprising:

a liquid tank; and

a liquid pump mounted to the liquid tank;

characterized in that the liquid pump is a liquid pump according to any one of claims 1 to 8.

10. A toilet apparatus, comprising:

a toilet seat device; and

the liquid supply device is communicated with the toilet bowl device through a pipeline;

wherein the liquid supply device is the liquid supply device of claim 9.

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