A free plug-in fixed water pump

Abstract

The utility model relates to a kind of free plug-in fixed water pump, including the pump shell with pump cavity and installation cavity, the impeller is arranged in the pump cavity, the drive mechanism for driving impeller rotation is equipped in the installation cavity, plug-in fixed structure is equipped at the outer periphery of the pump shell one axial position, the plug-in fixed structure is divided into first shell part and second shell part by pump shell radial, integrally formed with the liquid inlet hole and liquid outlet hole of the communication of pump cavity on the first shell part, the plug-in fixed structure is cooperated with the insertion hole of container and makes first shell part fixed in container. Only need to process the insertion hole of plug-in fixed structure adaptation on container, the water pump can be fixed connection with container through plug-in fixed structure, first shell part is connected in container, liquid in container enters pump cavity from liquid inlet hole and leaves pump cavity from liquid outlet hole after pressure increasing, without setting liquid inlet pipe, liquid outlet pipe on pump shell, connection is convenient and structure is simplified.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, specifically to a free-connecting fixed water pump. Background Technology

[0002] Water pumps, which drive an impeller to rotate to pressurize or transfer liquids, are widely used in various equipment, especially in small household appliances, such as for the circulation and cleaning of water tanks.

[0003] Existing pumps typically have an inlet pipe and an outlet pipe on the pump casing, and then external pipes are used to connect the outlet pipe and outlet pipe to the container respectively, which is complicated to install and operate and has low flexibility. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a free-plugging fixed water pump.

[0005] The technical solution adopted by this utility model is as follows: A free-pluggable fixed water pump includes a pump casing having a pump chamber and a mounting chamber. An impeller is disposed in the pump chamber, and a drive mechanism for driving the impeller to rotate is disposed in the mounting chamber. A plug-in fixing structure is provided at an axial position on the outer circumference of the pump casing. The plug-in fixing structure divides the pump casing radially into a first shell part and a second shell part. The first shell part has an inlet hole and an outlet hole integrally formed therewith, which communicate with the pump cavity. The plug-in fixing structure engages with the container socket to fix the first shell part inside the container.

[0006] Preferably, the plug-in fixing structure includes a first sealing group, the first sealing group including at least one first sealing groove circumferentially disposed around the outer periphery of the pump housing, the first sealing groove being embedded with a first sealing element, the first sealing element having a first sealing position that seals with the container insertion hole.

[0007] Preferably, the plug-in fixing structure further includes a second sealing group located on the side of the first sealing group away from the liquid inlet hole. The second sealing group includes at least one second sealing groove circumferentially disposed around the outer periphery of the pump housing. A second sealing element is embedded in the first sealing groove. The second sealing element has a second sealing position that seals with the container insertion hole.

[0008] Preferably, the plug-in fixing structure includes an abutment ring portion connected to the outer periphery of the pump housing. The first housing portion has a first connection position where it is inserted into the container from the outside of the container through the container insertion hole along a first axial direction A until the abutment ring portion abuts against the outer wall of the container and the first sealing member is located in a first sealing position. The second housing portion has a second connection position where it is inserted into the container from the inside of the container through the container insertion hole along a second axial direction B until the abutment ring portion abuts against the inner wall of the container and the second sealing member is located in a second sealing position. The second axial direction B is opposite to the first axial direction A.

[0009] Preferably, the pump housing includes a volute and a motor housing with openings facing the same direction. One end of the opening of the volute is connected to the end of the motor housing away from the opening. The inlet and outlet are integrally formed on the volute, and the plug-in fixing structure is integrally formed on the volute.

[0010] Preferably, the volute has an internal thread at one end of its opening, and the motor housing has an external thread at the end furthest from the opening, and the volute and the motor housing are threadedly connected.

[0011] Preferably, a swivel groove is provided on the outer periphery of one end of the motor housing opening.

[0012] Preferably, the liquid inlet hole is coaxially arranged with the impeller.

[0013] Preferably, the liquid outlet includes a first port near the pump chamber and a second port away from the pump chamber, wherein the first port is located at a circumferential position of the impeller.

[0014] Preferably, the outlet hole is centrifugal and arranged around the pump casing wall.

[0015] The beneficial effects of this utility model are as follows: As long as the container is machined with a matching plug-in fixing structure, the water pump can be fixedly connected to the container through the plug-in fixing structure. The first shell is connected to the container. The liquid in the container enters the pump chamber through the inlet hole, is pressurized, and then leaves the pump chamber through the outlet hole. There is no need to set an inlet pipe and an outlet pipe on the pump shell and then use an external pipe to connect the outlet pipe and the outlet pipe to the container. The connection is convenient and the structure is simplified. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0017] Figure 1 This is a perspective structural diagram of Embodiment 1 of the present utility model; Figure 2 This is a top view of Embodiment 1 of the present invention; Figure 3 for Figure 2 Sectional view at CC; Figure 4 This is a side view of Embodiment 1 of the present invention; Figure 5 This is a perspective structural diagram of Embodiment 2 of the present invention; Figure 6 This is a side view of Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the connection and cooperation between the water pump and the container in Embodiment 2 of this utility model; In the figure, 1 is the pump casing; 3 is the impeller; 11 is the volute; 12 is the motor casing; 21 is the first sealing groove; 22 is the second sealing groove; 23 is the abutment ring; 101 is the pump chamber; 102 is the mounting cavity; 110 is the first housing part; 111 is the liquid inlet; 112 is the liquid outlet; 113 is the liquid inlet ring part; 120 is the second housing part; 121 is the engagement groove; 1121 is the first port; 1122 is the second port. Detailed Implementation

[0018] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0019] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0020] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0021] Example 1 like Figures 1 to 4 As shown in the figure, a free-pluggable fixed water pump according to an embodiment of the present invention includes a pump casing 1 having a pump chamber 101 and a mounting cavity 102. An impeller 3 is disposed in the pump chamber 101, and a drive mechanism for driving the impeller 3 to rotate is disposed in the mounting cavity 102. The pump housing 1 is provided with a plug-in fixing structure at an axial position on its outer circumference. The plug-in fixing structure radially divides the pump housing 1 into a first housing portion 110 and a second housing portion 120. The first housing portion 110 is integrally formed with an inlet hole 111 and an outlet hole 112 that communicate with the pump cavity 101. The plug-in fixing structure engages with the container socket to fix the first shell 110 inside the container.

[0022] With this setup, as long as the container has a matching insertion hole, the water pump can be fixedly connected to the container through the insertion fixing structure. The first shell is connected to the container. The liquid in the container enters the pump chamber through the inlet hole, is pressurized, and then leaves the pump chamber through the outlet hole. There is no need to set an inlet pipe and an outlet pipe on the pump shell and then use an external pipe to connect the outlet pipe and the container. The connection is convenient and the structure is simplified.

[0023] In this embodiment, the drive mechanism is specifically a brushless motor, including a rotor and a stator.

[0024] The plug-in fixing structure includes a first sealing group, which includes at least one first sealing groove 21 circumferentially disposed around the outer periphery of the pump housing 1. A first sealing element is embedded in the first sealing groove 21, and the first sealing element has a first sealing position that seals with the container insertion hole.

[0025] With this design, after the pump casing is inserted into the container socket, it can be sealed to the container socket by a first sealing element embedded in the first sealing groove, thereby ensuring the stability and reliability of the insertion. The first sealing element is not shown in the attached drawing; a sealing ring can be selected instead.

[0026] The pump housing 1 includes a volute 11 with openings facing the same direction and a motor housing 12. One end of the opening of the volute 11 is connected to the end of the motor housing 12 away from the opening. The liquid inlet 111 and the liquid outlet 112 are integrally formed on the volute 11, and the plug-in fixing structure is integrally formed on the volute 11.

[0027] This design improves the ease of processing the device and reduces potential leakage points.

[0028] The volute 11 has an internal thread at one end of its opening, and the motor housing 12 has an external thread at the end away from the opening. The volute 11 and the motor housing 12 are threadedly connected.

[0029] This design makes the connection between the motor housing and the volute housing convenient and stable.

[0030] A swivel groove 121 is provided on the outer periphery of one end of the opening of the motor housing 12.

[0031] It also includes a cover that screws onto one end of the motor housing opening. With this feature, after the motor is installed and assembled inside the motor housing, the cover can be screwed onto and secured to the motor housing. The cover is not shown in the attached drawing.

[0032] The liquid inlet hole 111 is coaxially arranged with the impeller 3.

[0033] Specifically, in this embodiment, the upper center of the pump casing 1 is provided with an inlet ring 113 coaxial with the impeller, and the inlet hole extends upward through the inlet ring, thereby extending the inlet path of the inlet hole.

[0034] The liquid outlet 112 includes a first port 1121 near the pump chamber 101 and a second port 1122 away from the pump chamber 101. The first port 1121 is located at a circumferential position of the impeller 3.

[0035] With this setup, the centrifugal force generated by the impeller rotation directly throws the inlet liquid from the first port into the outlet port, ensuring the pressurization effect of this water pump.

[0036] The liquid outlet 112 is centrifugal and is arranged around the wall of the pump casing 1.

[0037] This design extends the liquid outlet path and aligns with the direction of centrifugal force generated by the impeller rotation, reducing the resistance of the outlet to the water and improving the pump's boosting effect.

[0038] Specifically, in this embodiment, the liquid outlet is oriented centrifugally upward, further extending the liquid outlet path.

[0039] Example 2 like Figures 5 to 7 The image shown is an embodiment of the present invention, a free-plugging fixed water pump. The difference between this embodiment and Embodiment 1 is that: The plug-in fixing structure also includes a second sealing group located on the side of the first sealing group away from the liquid inlet hole 111. The second sealing group includes at least one second sealing groove 22 circumferentially disposed around the outer periphery of the pump housing 1. A second sealing element is embedded in the first sealing groove 21. The second sealing element has a second sealing position that seals with the container insertion hole.

[0040] This design allows for greater installation flexibility, enabling the pump casing to be connected to the container port via either a first seal or a second seal, depending on the depth of the installation location. The second seal is not shown in the attached diagram; a sealing ring can be selected instead.

[0041] The insertion fixing structure includes an abutment ring 23 connected to the outer periphery of the pump housing 1, such as... Figure 7As shown in (a), the first shell portion 110 has a first connection position whereby it is inserted into the container from the outside of the container along the first axial direction A through the container insertion hole until the abutment ring portion 23 abuts against the outer wall of the container and the first seal is located in the first sealing position, as shown in (a). Figure 7 As shown in (b), the second shell portion 120 has a second connection position whereby it extends from the inside of the container through the container insertion hole along the second axis B to the abutment ring portion 23 and abuts against the inner wall of the container, and the second seal is located in the second sealing position. The second axis B is opposite to the direction of the first axis A.

[0042] This setting further ensures the stability of the bidirectional connection of the pump casing.

[0043] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A free-pluggable fixed water pump, comprising a pump casing (1) having a pump chamber (101) and a mounting cavity (102), wherein an impeller (3) is disposed in the pump chamber (101), and a drive mechanism for driving the impeller (3) to rotate is disposed in the mounting cavity (102), characterized in that: The pump housing (1) is provided with a plug-in fixing structure at the axial position of the outer circumference. The plug-in fixing structure divides the pump housing (1) radially into a first housing part (110) and a second housing part (120). The first housing part (110) is integrally formed with an inlet hole (111) and an outlet hole (112) that communicate with the pump cavity (101). The plug-in fixing structure engages with the container socket to fix the first shell part (110) inside the container.

2. The free-plugging fixed water pump according to claim 1, characterized in that: The plug-in fixing structure includes a first sealing group, the first sealing group including at least one first sealing groove (21) circumferentially disposed around the outer periphery of the pump housing (1), the first sealing groove (21) is provided with a first sealing element, the first sealing element having a first sealing position that seals with the container insertion hole.

3. A free-plugging fixed water pump according to claim 2, characterized in that: The plug-in fixing structure also includes a second sealing group located on the side of the first sealing group away from the liquid inlet (111). The second sealing group includes at least one second sealing groove (22) circumferentially disposed around the outer periphery of the pump housing (1). The first sealing groove (21) is embedded with a second sealing element, and the second sealing element has a second sealing position that seals with the container insertion hole.

4. A free-plugging fixed water pump according to claim 3, characterized in that: The plug-in fixing structure includes an abutment ring (23) connected to the outer periphery of the pump housing (1). The first housing (110) has a first connection position where it is inserted into the container from the outside of the container through the container insertion hole along the first axial direction (A) until the abutment ring (23) abuts against the outer wall of the container and the first seal is located in the first sealing position. The second housing (120) has a second connection position where it is inserted into the container from the inside of the container through the container insertion hole along the second axial direction (B) until the abutment ring (23) abuts against the inner wall of the container and the second seal is located in the second sealing position. The second axial direction (B) is opposite to the first axial direction (A).

5. A free-plugging fixed water pump according to any one of claims 1-4, characterized in that: The pump housing (1) includes a volute (11) with openings facing the same direction and a motor housing (12). One end of the opening of the volute (11) is connected to the end of the motor housing (12) away from the opening. The liquid inlet (111) and the liquid outlet (112) are integrally formed on the volute (11), and the plug-in fixing structure is integrally formed on the volute (11).

6. A free-plugging fixed water pump according to claim 5, characterized in that: The volute (11) has an internal thread at one end of its opening, and the motor housing (12) has an external thread at the end away from the opening. The volute (11) and the motor housing (12) are connected by threads.

7. A free-plugging fixed water pump according to claim 5, characterized in that: The motor housing (12) has a swivel groove (121) on the outer periphery of one end of the opening.

8. A free-plugging fixed water pump according to any one of claims 1-4, characterized in that: The liquid inlet hole (111) is coaxially arranged with the impeller (3).

9. A free-plugging fixed water pump according to any one of claims 1-4, characterized in that: The outlet hole (112) includes a first port (1121) near the pump chamber (101) and a second port (1122) away from the pump chamber (101), the first port (1121) being located at a circumferential position of the impeller (3).

10. A free-plugging fixed water pump according to claim 9, characterized in that: The outlet hole (112) is centrifugal and is arranged around the wall of the pump casing (1).

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