Water pump with strong sealing performance

Abstract

The utility model relates to water pump assembly technical field, concretely disclose a kind of water pump of strong sealing, including motor shell and the motor being installed in motor shell, motor shell includes the main casing that upper and lower are through, top seat, bottom cover and screw lock piece, top seat is provided with through-hole, bottom cover is provided with the screw groove corresponding with through-hole, screw lock piece is from up to down through through-hole and screw groove thread connection to realize the top seat and bottom cover respectively sealed locking fixed in the upper and lower ends of main casing, since bottom cover is the closed design of not opening through-hole, to improve the sealing of bottom cover, moisture can effectively prevent entering into the inside of motor shell by bottom cover, improve the sealing waterproof effect of motor.

Description

Technical Field

[0001] This utility model relates to the field of water pump assembly technology, specifically to a water pump with strong sealing performance. Background Technology

[0002] The existing water pump motor housing includes a main housing and a bottom cover. The bottom cover has a through hole, and the main housing has a screw hole. Bolts are inserted from the bottom of the bottom cover through the through hole into the screw hole of the main housing to lock the bottom cover to the bottom of the main housing. The bolts are exposed on the surface, and the through hole on the bottom cover allows external moisture to easily enter the motor housing through the through hole, resulting in poor sealing and waterproofing of the motor. Utility Model Content

[0003] The present invention aims to provide a water pump with strong sealing performance to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a water pump with strong sealing performance, including a motor housing and a motor installed inside the motor housing. The motor housing includes a main housing that runs vertically through the top and bottom, a top seat, a bottom cover, and a screw locking component. The top seat is provided with a through hole, and the bottom cover is provided with a screw groove corresponding to the through hole. The screw locking component passes through the through hole from top to bottom and is threadedly connected to the screw groove to achieve sealing and locking of the top seat and the bottom cover to the upper and lower ends of the main housing, respectively.

[0005] Preferably, the screw is a bolt, with two through holes and screw grooves arranged opposite each other on the left and right, and the bolt located between the through hole and the screw groove is hidden inside the main housing.

[0006] Preferably, the bottom cover is made of aluminum, and the main housing is made of steel.

[0007] Preferably, a pump head assembly is installed at the top seat. The pump head assembly includes a pump head seat installed on the top seat and a pump head installed on the pump head seat. A swing bracket, a diaphragm, and a valve seat are sequentially installed on the pump head seat from the motor toward the pump head. The swing bracket is driven and connected to the output end of the motor.

[0008] Preferably, the pump head is provided with an inlet channel, an outlet channel, an inlet chamber, an outlet chamber, and a pump head outlet valve chamber. The inlet channel is connected to the inlet chamber, and the outlet channel is connected to the outlet chamber through the pump head outlet valve chamber. The valve seat is provided with a valve seat inlet valve chamber and a valve seat outlet valve chamber. The inlet chamber is located outside the outlet chamber, and the inlet chamber and the outlet chamber are connected sequentially through the valve seat inlet valve chamber and the valve seat outlet valve chamber.

[0009] Preferably, a valve seat inlet valve is provided at the valve seat inlet valve chamber, a valve seat outlet valve is provided at the valve seat outlet valve chamber, and a pump head outlet valve is provided between the inlet end of the pump head outlet valve chamber and the outlet end of the outlet chamber.

[0010] Preferably, a pressure switch assembly is installed on the pump head corresponding to the pump head outlet valve cavity. The pressure switch assembly includes a switch housing and a micro switch, a swing element, and an elastic element installed in the switch housing. A diaphragm is provided on the pump head outlet valve cavity. The swing element is oscillating up and down and is disposed in the switch housing. The elastic element is abutted between the top side of the swing element and the switch housing. The diaphragm and the swing element are driven together, and the swing element and the micro switch are driven together.

[0011] Preferably, a protective valve cover is provided at the top of the pump head outlet valve chamber, the protective valve cover is located below the diaphragm, and an outlet hole is provided on the protective valve cover.

[0012] Preferably, the switch housing includes an upper shell and a lower shell assembled from the upper and lower shells, with a wiring port formed by the upper and lower shells. A rubber wire holder is sealed and installed inside the wiring port, and a wiring hole is opened inside the rubber wire holder. An electric wire is sealed and passed through the wiring hole, and the micro switch is electrically connected to the motor through the electric wire.

[0013] Preferably, a mounting bracket is fixedly installed on one side of the main housing, and the mounting bracket is provided with multiple support feet; the water pump is a three-chamber water pump, a four-chamber water pump, or a five-chamber water pump.

[0014] This utility model has the following beneficial effects:

[0015] This utility model includes a motor housing and a motor installed inside the motor housing. The motor housing includes a main housing that runs vertically through the top and bottom, a top seat, a bottom cover, and a screw locking component. The top seat has a through hole, and the bottom cover has a screw groove corresponding to the through hole. The screw locking component passes through the through hole from top to bottom and is threadedly connected to the screw groove to seal and lock the top seat and bottom cover to the upper and lower ends of the main housing, respectively. Since the bottom cover is a closed design without a through hole, the sealing performance of the bottom cover is improved, which can effectively prevent moisture from entering the interior of the motor housing through the bottom cover and improve the sealing and waterproof effect of the motor. Attached Figure Description

[0016] Figure 1 This is a bottom side view of Embodiment 1 of this utility model.

[0017] Figure 2 This is a side view of Embodiment 1 of this utility model.

[0018] Figure 3 yes Figure 2 Sectional view at point AA.

[0019] Figure 4 This is an exploded view of Embodiment 1 of this utility model.

[0020] Figure 5 This is an exploded view of the motor housing of Embodiment 1 of this utility model.

[0021] Figure 6 This is an assembly diagram of the diaphragm and protective valve cover inside the pump head in Embodiment 1 of this utility model.

[0022] Figure 7 This is an exploded view of the valve seat of Embodiment 1 of this utility model.

[0023] Figure 8 This is an assembly diagram of the switch housing of Embodiment 1 of this utility model.

[0024] Figure 9 This is a schematic diagram of the structure of the rubber wire seat in Embodiment 1 of this utility model.

[0025] Figure 10 This is an exploded view of Embodiment 2 of this utility model.

[0026] Attached diagram labels: 1 Main housing, 2 Top seat, 3 Bottom cover, 4 Screw fastener, 5 Motor, 6 Through hole, 7 Screw groove, 8 Pump head seat, 9 Pump head, 91 Inlet channel, 92 Outlet channel, 93 Inlet chamber, 94 Outlet chamber, 95 Pump head outlet valve chamber, 10 Swing bracket, 11 Diaphragm, 12 Valve seat, 121 Valve seat inlet valve chamber, 122 Valve seat outlet valve chamber, 13 Valve seat inlet valve, 14 Valve seat outlet valve, 15 Pump head outlet valve, 16 Upper housing, 17 Lower housing, 18 Micro switch, 19 Swing component, 20 Elastic component, 21 Diaphragm, 22 Protective valve cover, 23 Outlet hole, 24 Wiring port, 25 Rubber cable holder, 26 Wiring hole, 27 Mounting bracket, 28 Support foot. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] See Figure 1-9 As shown in the figure, as an embodiment of the present invention, a water pump with strong sealing performance is provided, including a motor housing and a motor 5 installed in the motor housing. The motor housing includes a main housing 1 that runs vertically through the motor, a top seat 2, a bottom cover 3, and a screw locking member 4. The top seat 2 is provided with a through hole 6, and the bottom cover 3 is provided with a screw groove 7 corresponding to the through hole 6. The screw locking member 4 passes through the through hole 6 from top to bottom and is threadedly connected to the screw groove 7 to seal and lock the top seat 2 and the bottom cover 3 to the upper and lower ends of the main housing 1 respectively. Since the bottom cover 3 is a closed design without through holes, the sealing performance of the bottom cover 3 is improved, which can effectively prevent water from entering the interior of the motor housing through the bottom cover 3, thereby improving the sealing and waterproof effect of the motor 5.

[0031] In this embodiment, the screw locking component 4 is a bolt, and the through hole 6 and the screw groove 7 are two oppositely arranged on the left and right sides, and the bolt located between the through hole 6 and the screw groove 7 is hidden inside the main housing 1, thereby improving the assembly stability.

[0032] In this embodiment, the bottom cover 3 is made of aluminum, which provides better heat dissipation, and the main housing 1 is made of steel to ensure its strength.

[0033] In this embodiment, a pump head assembly is installed at the top seat 2. The pump head assembly includes a pump head seat 8 installed on the top seat 2 and a pump head 9 installed on the pump head seat 8. A swing bracket 10, a diaphragm 2111, and a valve seat 12 are sequentially installed on the pump head seat 8 from the motor 5 toward the pump head 9. The swing bracket 10 is driven and connected to the output end of the motor 5.

[0034] In this embodiment, the pump head 9 is provided with an inlet channel 91, an outlet channel 92, an inlet chamber 93, an outlet chamber 94, and a pump head outlet valve chamber 95. The inlet channel 91 is connected to the inlet chamber 93, and the outlet channel 92 is connected to the outlet chamber 94 through the pump head outlet valve chamber 95. The valve seat 12 is provided with a valve seat inlet valve chamber 121 and a valve seat outlet valve chamber 122. The inlet chamber 93 is located outside the outlet chamber 94, and the inlet chamber 93 and the outlet chamber 94 are connected sequentially through the valve seat inlet valve chamber 121 and the valve seat outlet valve chamber 122. Among them, a valve seat inlet valve 13 is provided at the valve seat inlet valve chamber 121, a valve seat outlet valve 14 is provided at the valve seat outlet valve chamber 122, and a pump head outlet valve 15 is provided between the inlet end of the pump head outlet valve chamber 95 and the outlet end of the outlet chamber 94.

[0035] In this embodiment, a pressure switch assembly is installed on the pump head 9 at the pump head outlet valve chamber 95. The pressure switch assembly includes a switch housing and a micro switch 18, a swing member 19, and an elastic member 20 installed in the switch housing. The elastic member 20 is a spring. A diaphragm 21 is provided on the pump head outlet valve chamber 95. The swing member 19 is oscillating up and down inside the switch housing. The elastic member 20 is abutted between the top side of the swing member 19 and the switch housing. The diaphragm 21 and the swing member 19 are driven together, and the swing member 19 and the micro switch 18 are driven together. When the valve of the external outlet pipe on the outlet channel 92 is closed, the pump motor 5 is still working, which causes the outlet channel 92 and the pump head outlet to be connected. The water pressure in the valve chamber 95 gradually increases. When the water pressure increases to a certain level, it will push the diaphragm 21 upward, thereby driving the swinging member 19 to swing upward, which in turn triggers the micro switch 18 to disconnect, thus shutting down the motor 5 and stopping its operation. This reduces the load and wear on the water pump and saves energy. When the valve of the external water outlet pipe on the water outlet channel 92 is opened, the water pressure in the water outlet channel 92 and the pump head outlet valve chamber 95 gradually decreases. When the water pressure decreases to less than the spring force, the swinging member 19 swings downward under the action of the spring force, and the diaphragm 21 elastically resets downward. At this time, the micro switch 18 is triggered to open, thus restarting the motor 5. Because the diaphragm 21 of this technical solution is elastically abutted against the swing member 19 by an independent spring located outside the micro switch 18, and the on / off state of the micro switch 18 is indirectly controlled by the lever principle of the swing member 19, the diaphragm 21 is not easily affected by slight changes in water pressure and will not frequently move, thereby preventing the micro switch 18 and the water pump from frequently starting and stopping, and extending the service life of the micro switch 18 and the water pump.

[0036] In this embodiment, a protective valve cover 22 is provided on the top of the pump head outlet valve chamber 95. The protective valve cover 22 is located below the diaphragm 21, and a water outlet hole 23 is provided on the protective valve cover 22. Water in the pump head outlet valve chamber 95 is sprayed upward through the water outlet hole 23, thereby pushing the diaphragm 21 upward. This arrangement can increase the water pressure and ensure that the diaphragm 21 can be pushed upward smoothly. The diaphragm 21 is circular and disc-shaped, and the top side of the protective valve cover 22 is a circular disc surface that gradually concaves from the periphery to the center. This ensures that the top side of the protective valve cover 22 corresponds and matches the bottom side of the diaphragm 21, thereby effectively preventing the diaphragm 21 from moving downward excessively under the elastic action of the elastic member 20 and causing deformation.

[0037] In this embodiment, the switch housing includes an upper shell 16 and a lower shell 17 assembled vertically. A wiring port 24 is formed between the upper shell 16 and the lower shell 17. A rubber wire holder 25 is sealed and installed inside the wiring port 24. A wiring hole 26 is provided inside the rubber wire holder 25, and an electric wire is sealed and passed through the wiring hole 26. The micro switch 18 is electrically connected to the motor 5 through the electric wire. A U-shaped groove is recessed in the outer middle of the rubber wire holder 25, and the rubber wire holder 25 is sealed and clamped into the wiring port 24 through the U-shaped groove.

[0038] In this embodiment, a mounting bracket 27 is fixedly installed on one side of the main housing 1. The mounting bracket 27 is provided with multiple support feet 28. The water pump is fixedly installed at a designated position by the multiple support feet 28 on the mounting bracket 27. The water pump is a three-chamber water pump.

[0039] Example 2: For the sake of brevity, this example mainly describes the differences from the previous example.

[0040] See Figure 10 As shown in the illustration, as an embodiment of this utility model, a water pump with strong sealing performance is provided. This water pump is a four-chamber water pump, which results in a larger water output and better water delivery. Of course, in other cases, water pumps with other numbers of chambers, such as five-chamber water pumps, can also be used, and this is not a limitation.

[0041] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A water pump with strong sealing performance, characterized in that: The device includes a motor housing and a motor installed inside the motor housing. The motor housing includes a main housing that runs vertically through the top and bottom, a top seat, a bottom cover, and a screw locking component. The top seat has a through hole, and the bottom cover has a screw groove corresponding to the through hole. The screw locking component passes through the through hole and the screw groove from top to bottom and is threadedly connected to achieve sealing and locking of the top seat and the bottom cover to the upper and lower ends of the main housing, respectively.

2. The water pump with strong sealing performance according to claim 1, characterized in that: The screw-locking component is a bolt, with two through holes and screw grooves arranged opposite each other on the left and right sides, and the bolt located between the through hole and the screw groove is hidden inside the main housing.

3. The water pump with strong sealing performance according to claim 1, characterized in that: The bottom cover is made of aluminum, and the main body is made of steel.

4. The water pump with strong sealing performance according to claim 1, characterized in that: A pump head assembly is installed at the top seat. The pump head assembly includes a pump head seat mounted on the top seat and a pump head mounted on the pump head seat. A swing bracket, a diaphragm, and a valve seat are sequentially installed on the pump head seat from the motor toward the pump head. The swing bracket is driven and connected to the output end of the motor.

5. The water pump with strong sealing performance according to claim 4, characterized in that: The pump head is equipped with an inlet channel, an outlet channel, an inlet chamber, an outlet chamber, and a pump head outlet valve chamber. The inlet channel is connected to the inlet chamber, and the outlet channel is connected to the outlet chamber through the pump head outlet valve chamber. The valve seat is equipped with a valve seat inlet valve chamber and a valve seat outlet valve chamber. The inlet chamber is located outside the outlet chamber, and the inlet chamber and outlet chamber are connected sequentially through the valve seat inlet valve chamber and the valve seat outlet valve chamber.

6. The water pump with strong sealing performance according to claim 5, characterized in that: A valve seat inlet valve is provided at the valve seat inlet valve chamber, a valve seat outlet valve is provided at the valve seat outlet valve chamber, and a pump head outlet valve is provided between the inlet end of the pump head outlet valve chamber and the outlet end of the outlet chamber.

7. The water pump with strong sealing performance according to claim 5, characterized in that: A pressure switch assembly is installed on the pump head corresponding to the pump head outlet valve cavity. The pressure switch assembly includes a switch housing and a micro switch, a swing element, and an elastic element installed in the switch housing. A diaphragm is provided on the pump head outlet valve cavity. The swing element can swing up and down and is provided in the switch housing. The elastic element is abutted between the top side of the swing element and the switch housing. The diaphragm and the swing element are driven together, and the swing element and the micro switch are driven together.

8. The water pump according to claim 7, characterized in that: A protective valve cover is installed at the top of the pump head outlet valve chamber. The protective valve cover is located below the diaphragm and has an outlet hole.

9. The water pump according to claim 7, characterized in that: The switch housing includes an upper shell and a lower shell assembled from the upper and lower shells. A wiring port is formed by the upper and lower shells. A rubber wire holder is sealed and installed inside the wiring port. A wiring hole is opened inside the rubber wire holder. An electric wire is sealed and passed through the wiring hole. The micro switch is electrically connected to the motor through the electric wire.

10. The water pump with strong sealing performance according to claim 1, characterized in that: A mounting bracket is fixedly installed on one side of the main housing, and the mounting bracket is equipped with multiple support feet; the water pump is a three-chamber water pump, a four-chamber water pump, or a five-chamber water pump.

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