Freely inserted and fixed water pump

Abstract

The invention relates to a free plug-in fixed water pump which comprises a pump shell with a pump cavity and a mounting cavity, an impeller is arranged in the pump cavity, a driving mechanism for driving the impeller to rotate is arranged in the mounting cavity, and a plug-in fixed structure is arranged at the axial position of the periphery of the pump shell. The pump shell is radially divided into a first shell part and a second shell part by the inserting and fixing structure, a liquid inlet hole and a liquid outlet hole which are communicated with the pump cavity are integrally formed in the first shell part, and the inserting and fixing structure is matched with the container inserting hole in an inserting and connecting mode so that the first shell part can be fixed in the container. The water pump can be fixedly connected with the container through the insertion fixing structure as long as an insertion hole matched with the insertion fixing structure is formed in the container, the first shell part is connected into the container, liquid in the container enters the pump cavity from the liquid inlet hole to be pressurized and then leaves the pump cavity from the liquid outlet hole, and a liquid inlet pipe and a liquid outlet pipe do not need to be arranged on the pump shell; connection is convenient and the structure is simplified.

Description

Technical Field

[0001] This invention relates to the field of water pump technology, and 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. Summary of the Invention

[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 in this invention is as follows: A freely 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 liquid outlet is centrifugally shaped and arranged around the pump casing wall.

[0015] The beneficial effects of the present invention 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 simple. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0017] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention; Figure 2This 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 three-dimensional 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 the present invention; In the figure, 1, 3, impeller; 11, volute; 12, motor housing; 21, first sealing groove; 22, second sealing groove; 23, abutment ring; 101, pump chamber; 102, mounting cavity; 110, first housing; 111, liquid inlet; 112, liquid outlet; 113, liquid inlet ring; 120, second housing; 121, engagement groove; 1121, first port; 1122, second port. Detailed Implementation

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

[0019] It should be noted that all uses of "first" and "second" in the embodiments of the present invention 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 the present invention. Subsequent embodiments will not explain this in detail.

[0020] The directional and positional terms used in this invention, 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 illustrating and understanding this invention, and not for limiting the scope of protection of this invention.

[0021] Example 1 like Figures 1 to 4 As shown in the figure, in an embodiment of the present invention, a free-pluggable fixed water pump 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 description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

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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