An automatic exhaust pump

Abstract

The application relates to an automatic exhaust pump, belonging to the technical field of water pumps, comprising a pump body and a motor, wherein the pump body comprises a pump cavity, the pump cavity is internally provided with an impeller, the motor is internally provided with a shielding sleeve, the motor comprises a rotor, the rotor is located in the shielding sleeve, the pump cavity and the shielding sleeve are in communication, and the shielding sleeve is provided with an exhaust hole for exhausting gas in the shielding sleeve. The application has the advantage that gas can be exhausted.

Description

Technical Field

[0001] This application relates to the technical field of water pumps, and in particular to an automatic air venting pump. Background Technology

[0002] In existing water pumps, when used in water-related scenarios, gas can easily accumulate inside the pump, which can adversely affect its operation. Utility Model Content

[0003] In view of the shortcomings of the existing technology, one of the objectives of this application is to provide an automatic exhaust pump that has the advantage of being able to exhaust gas.

[0004] The above-mentioned objective of this application is achieved through the following technical solution:

[0005] An automatic exhaust pump includes a pump body and a motor. The pump body includes a pump chamber with an impeller inside. The motor has a shielding sleeve inside and includes a rotor located inside the shielding sleeve. The pump chamber and the shielding sleeve are connected. The shielding sleeve has an exhaust hole for discharging gas from inside the shielding sleeve.

[0006] By adopting the above technical solution, during use, since the pump chamber and the shielding sleeve are connected, water will enter the shielding sleeve when the pump is working, thereby allowing the gas inside the shielding sleeve to be discharged from the discharge hole, thus reducing the adverse effects on the operation of the pump caused by the presence of gas (such as noise, shortened pump life, etc.).

[0007] In a preferred embodiment, this application may be further configured such that the exhaust port is provided with an exhaust flow obstruction component.

[0008] By adopting the above technical solution, the presence of the exhaust flow obstruction component reduces the amount of water discharged after the gas is discharged during use.

[0009] In a preferred embodiment, the present application may be further configured such that the exhaust flow obstruction component is a waterproof and breathable membrane, which is used to prevent liquid from being discharged from the exhaust port.

[0010] By adopting the above technical solution, the presence of the waterproof and breathable membrane facilitates the discharge of gas, while preventing the discharge of liquid.

[0011] In a preferred embodiment, the present application may be further configured such that: the exhaust flow obstruction assembly includes an exhaust pipe and a flow obstruction element, the flow obstruction element is mounted on the exhaust pipe, the exhaust pipe and the exhaust port are sealed together, and the flow obstruction element is used to reduce or prevent liquid outflow.

[0012] By adopting the above technical solution, during use, gas is discharged from the exhaust pipe, and when liquid enters the exhaust pipe, it is blocked by the flow-blocking component.

[0013] In a preferred embodiment, this application may be further configured such that: the flow obstruction includes a baffle plate and a float, the float is located inside the exhaust pipe, the baffle plate is provided with a through hole, the through hole is connected to the exhaust pipe for discharging gas, and the float is used to block the through hole.

[0014] By adopting the above technical solution, when the gas is discharged during use, the liquid enters the exhaust pipe. Under the action of the liquid buoyancy, the float rises and blocks the through hole, thereby reducing the amount of liquid discharged.

[0015] In a preferred embodiment, this application may be further configured such that the float and the exhaust pipe form an exhaust channel for gas passage.

[0016] By adopting the above technical solution, during the exhaust process, the gas is discharged from the exhaust channel, and the existence of the exhaust channel makes the gas discharge more smooth.

[0017] In a preferred embodiment, the present application may be further configured such that the motor includes a circuit cavity for accommodating a control board, and the exhaust flow obstruction assembly is located within the circuit cavity.

[0018] By adopting the above technical solution, the exhaust flow obstruction component is located inside the circuit cavity, which makes the overall space occupied by the pump smaller.

[0019] In a preferred embodiment, the present application may be further configured such that the circuit cavity is provided with a sealant.

[0020] By adopting the above technical solution, the presence of sealant can seal the components inside the circuit cavity.

[0021] In a preferred embodiment, this application can be further configured such that the exhaust port is connected to the stator cavity of the motor, and the stator cavity is sealed.

[0022] By adopting the above technical solution, gas can also be discharged from the stator cavity during use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this application.

[0024] Figure 2 This is a cross-sectional structural diagram of this application.

[0025] Figure 3 This is a schematic diagram of the float and exhaust pipe structure of this application.

[0026] Reference numerals: 1. Pump body; 11. Pump chamber; 2. Motor; 21. Cover plate; 211. Through hole; 22. Stator chamber; 23. Rotor chamber; 24. Circuit chamber; 3. Shielding sleeve; 31. Exhaust hole; 4. Exhaust flow obstruction assembly; 41. Exhaust pipe; 42. Float; 43. Support point. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1-3 The present application discloses an automatic exhaust pump, comprising a pump body 1 and a motor 2, which are connected together. The pump body 1 includes a pump chamber 11, and an impeller is disposed within the pump chamber 11. The motor 2 includes a stator and a rotor. A shielding sleeve 3 is disposed within the chamber of the motor 2, dividing the chamber into a rotor chamber 23 and a stator chamber 22. The rotor is located within the rotor chamber 23, and the stator is located within the stator chamber 22.

[0029] Pump chamber 11 and rotor chamber 23 are connected. The shielding sleeve 3 is also provided with an exhaust port 31, which is connected to the rotor chamber 23. An exhaust flow obstruction assembly 4 is provided on the exhaust port 31. The exhaust flow obstruction assembly 4 includes an exhaust pipe 41 and a flow obstruction element. The flow obstruction element is installed on the exhaust pipe 41, and the exhaust pipe 41 and exhaust port 31 are sealed together. The flow obstruction element is used to reduce or prevent liquid outflow.

[0030] The flow obstruction component includes a baffle plate and a float 42. A support point 43 exists along the movement path of the float 42. The float 42 is located inside the exhaust pipe 41 and supported by the support point 43. The support point 43 can be located inside the exhaust pipe 41 or at the location where the shielding sleeve 3 forms the exhaust hole 31. The diameter of the float 42 is smaller than the inner diameter of the exhaust pipe 41. The float 42 and the exhaust pipe 41 form an exhaust channel for gas passage. The baffle plate has a through hole 211, which is connected to the exhaust pipe 41 to discharge gas. The float 42 is used to block the through hole 211. In other embodiments, the diameter of the float 42 can be equal to the inner diameter of the exhaust pipe 41. In this case, the exhaust channel is located on the float 42, and when the float 42 blocks the through hole 211, the exhaust channel is not connected to the through hole 211.

[0031] The motor 2 includes a circuit cavity 24 and a cover plate 21. The circuit cavity 24 is used to house the control board and is sealed with a sealant (such as epoxy resin) to cover the control board. The cover plate 21 is used to cover the housing cavity. The exhaust flow obstruction assembly 4 is located inside the circuit cavity 24. In this embodiment, the obstruction plate may be part of the cover plate 21. In other embodiments, the obstruction plate may be installed on the exhaust pipe 41. After the gas is discharged from the exhaust pipe 41, it enters the circuit cavity 24 and is discharged from the gaps in the circuit cavity 24.

[0032] In other embodiments, the exhaust port 31 may also be connected to the stator cavity 22, in which case the stator cavity 22 is sealed with sealant.

[0033] In other embodiments, the exhaust flow obstruction component 4 is a waterproof and breathable membrane that covers the exhaust hole 31. When the exhaust hole 31 and the through hole 211 are connected to achieve gas discharge, the waterproof and breathable membrane covering the through hole 211 should also be understood as the waterproof and breathable membrane covering the exhaust hole 31.

[0034] The implementation principle of this embodiment is as follows: In the initial state, the pump body 1 is in a water environment (such as the water tank of a toilet used for washing the human body). Taking the pump as vertically set as an example (the state of the pump is related to the position of the exhaust port 31, that is, in this state, the gas can be completely discharged from the exhaust port 31), the pump is completely immersed in the liquid. When the liquid in the water tank submerges the motor 2, the gas in the motor 2 is discharged under pressure. If the pump is not completely immersed in the liquid, when the motor 2 drives the impeller to rotate, it draws the liquid in the water tank and washes the human body. At this time, under the pressure, the liquid enters the rotor cavity 23 and causes the liquid in the rotor cavity 23 to be discharged from the exhaust port 31 through the exhaust flow obstruction assembly 4.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic exhaust pump, characterized in that: The device includes a pump body (1) and a motor (2). The pump body (1) includes a pump chamber (11) with an impeller inside. The motor (2) has a shielding sleeve (3) inside and includes a rotor inside. The rotor is located inside the shielding sleeve (3). The pump chamber (11) and the shielding sleeve (3) are connected. The shielding sleeve (3) has an exhaust hole (31) for discharging gas from inside the shielding sleeve (3).

2. An automatic exhaust pump according to claim 1, characterized in that: The exhaust port (31) is provided with an exhaust flow obstruction component (4).

3. An automatic exhaust pump according to claim 2, characterized in that: The exhaust flow blocking component (4) is a waterproof and breathable membrane, which is used to prevent liquid from being discharged from the exhaust hole (31).

4. An automatic exhaust pump according to claim 2, characterized in that: The exhaust flow obstruction assembly (4) includes an exhaust pipe (41) and a flow obstruction element. The flow obstruction element is installed on the exhaust pipe (41). The exhaust pipe (41) and the exhaust port (31) are sealed together. The flow obstruction element is used to reduce or prevent liquid from flowing out.

5. An automatic exhaust pump according to claim 4, characterized in that: The flow obstruction includes a baffle plate and a float (42). The float (42) is located inside the exhaust pipe (41). The baffle plate is provided with a through hole (211). The through hole (211) is connected to the exhaust pipe (41) to discharge gas. The float (42) is used to block the through hole (211).

6. An automatic exhaust pump according to claim 5, characterized in that: The float (42) and the exhaust pipe (41) form an exhaust channel for gas to pass through.

7. An automatic exhaust pump according to claim 2, characterized in that: The motor (2) includes a circuit cavity (24) for accommodating a control board, and the exhaust flow obstruction assembly (4) is located within the circuit cavity (24).

8. An automatic exhaust pump according to claim 7, characterized in that: The circuit cavity (24) is provided with sealant.

9. An automatic exhaust pump according to claim 1, characterized in that: The exhaust port (31) is connected to the stator cavity (22) of the motor (2), and the stator cavity (22) is sealed.

Images