Self-exhaust device of water pump

Abstract

The utility model discloses a water pump self-exhaust device which comprises an exhaust shell, an exhaust through hole is formed in the upper portion of the exhaust shell, a valve plug used for opening or closing the exhaust through hole is arranged in the exhaust shell, and the bottom of the exhaust shell is connected with a transition cavity through a communication pipeline. The exhaust through hole is formed in the exhaust shell, the transition cavity is provided with a connecting port used for being connected with the water pump, a guide mechanism used for guiding the valve plug to open or close the exhaust through hole is arranged in the exhaust shell, and the density of the valve plug is smaller than the density of a medium in the exhaust shell. Stable automatic exhaust pressure regulation can be achieved, the problem that air enters the water pump in the operation process and consequently the capacity is reduced is effectively solved, the service life of water pump equipment is prolonged, and the device is simple in structure, portable and easy to install and maintain.

Description

Technical Field

[0001] This utility model relates to the field of exhaust valve technology, specifically a water pump self-venting device. Background Technology

[0002] A water pump is a mechanical device used to transport or pressurize liquids. During practical applications, gas accumulates within the pump chamber. When this gas reaches a certain pressure, it occupies the space inside the pump chamber, reducing the contact area between the impeller and the water. This affects the normal operation of the pump and increases the risk of the pump motor running dry. Dry running not only affects the pump's energy efficiency but also the stability of the system, leading to energy waste and even pump damage. Therefore, it is necessary to provide a new technical solution to overcome these shortcomings. Utility Model Content

[0003] The purpose of this utility model is to provide a water pump self-venting device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A water pump self-venting device includes a venting housing, an venting through hole at the top of the venting housing, a valve plug inside the venting housing for opening or closing the venting through hole, a transition cavity connected to the bottom of the venting housing via a connecting pipe, a connection port for connecting a water pump on the transition cavity, and a guide mechanism inside the venting housing for guiding the valve plug to open or close the venting through hole. The density of the valve plug is less than the density of the medium inside the venting housing.

[0006] By setting up an exhaust housing and an exhaust port, air inside the water pump can be discharged. At the same time, a transition cavity is set between the exhaust housing and the water pump. Utilizing the cavity effect, the speed and direction of fluid movement can be changed, thereby achieving fluid control and regulation, and ensuring the exhaust stability of the automatic exhaust device.

[0007] As a further embodiment of this utility model: the exhaust housing is provided with an exhaust chamber, the lower part of the exhaust chamber is provided with a support mechanism, and the valve plug is located above the support mechanism.

[0008] The valve plug is supported by a support mechanism and limited and guided by a guide mechanism.

[0009] As a further embodiment of this utility model: the support mechanism is a flat plate structure, and the support mechanism is provided with multiple filter holes, and the connection between the connecting pipe and the exhaust chamber is located below the support mechanism.

[0010] By setting multiple filter holes on the support plate, it can be ensured that the support mechanism will not affect the flow of the medium in the exhaust chamber. At the same time, the medium flowing into the exhaust chamber can be filtered to prevent impurities in the medium from clogging the exhaust holes.

[0011] As a further embodiment of this utility model: the guide mechanism is located above the support mechanism, and the upper end of the guide mechanism is fixedly connected to the upper wall of the exhaust housing.

[0012] The guide mechanism is located above the support mechanism. Therefore, the guide mechanism is located between the support mechanism and the upper wall of the exhaust housing, allowing the valve plug to move within this range. In addition, the guide mechanism can be a guide rod, a guide groove, or a guide ring column, as long as the valve plug can move according to the predetermined shape.

[0013] As a further embodiment of this utility model: the valve plug is a frustum structure, and the exhaust port is a frustum hole structure that mates with the valve plug.

[0014] By setting a valve plug with a frustum structure, the valve plug will close the exhaust port under the action of buoyancy, and at the same time, it can quickly detach from the exhaust port under the action of gravity so as to open the exhaust port.

[0015] As a further embodiment of this invention, the outer wall of the valve plug is covered with an elastic sealing material.

[0016] The sealing performance of the valve plug can be increased by using an elastic sealing material.

[0017] As a further embodiment of this utility model: the upper end of the exhaust housing is provided with an exhaust cover, the middle of the exhaust cover is provided with an exhaust channel, and the exhaust channel is connected to the exhaust through hole.

[0018] By setting an exhaust cover on the upper part of the exhaust housing and setting an exhaust channel on the exhaust cover, the exhaust capacity is guaranteed while increasing the strength of the exhaust housing.

[0019] As a further embodiment of this utility model: the exhaust channel includes a first exhaust channel and a second exhaust channel connected to the first exhaust channel. The first exhaust channel is connected to the exhaust through hole. One end of the second exhaust channel is connected to the first exhaust channel, and the other end is connected to the outside. The second exhaust channel is arranged at an angle.

[0020] The inclined second exhaust channel prevents external impurities from entering the exhaust system and causing blockages, thus improving the stability of the exhaust system.

[0021] As a further embodiment of this utility model, a filter screen is provided at the connection between the first exhaust channel and the second exhaust channel.

[0022] The exhaust filtration capacity can be further increased by setting up a filter screen.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. This application achieves stable automatic venting and pressure regulation by installing an automatic venting device on the water pump venting valve, effectively solving the problem of reduced capacity caused by air entering the water pump during operation, and extending the service life of the water pump equipment. Moreover, the device has a simple and portable structure and is easy to install and maintain.

[0025] 2. This application introduces a transition cavity into a traditional self-exhausting device. By utilizing the cavity effect of the transition cavity, the speed and direction of fluid movement can be changed, thereby achieving control and regulation of the fluid and ensuring the exhaust stability of the automatic exhaust device.

[0026] 3. The frustum-shaped valve plug design of this application allows for a higher degree of fit between the valve plug and the exhaust port, providing a good sealing effect when exhaust needs to be stopped, and making it easier to separate when sealing is not required.

[0027] 4. This application relies on liquid venting. Since this patent uses liquid venting, the angle between the second venting channel and the upper surface of the venting cover can be smaller. The angle in this application is 18 degrees, which can further prevent external impurities from entering the venting device and causing blockage, thereby improving the stability of the venting device. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the exhaust device structure in this embodiment;

[0029] Figure 2 This is a schematic diagram of the support plate structure in this embodiment;

[0030] In the figure: 1-Connection port, 2-Transition cavity, 3-Support plate, 31-Filter hole, 4-Valve plug, 5-Guide mechanism, 6-Exhaust through hole, 7-Exhaust cover, 71-First exhaust channel, 72-Filter screen, 73-Third exhaust channel, 8-Exhaust shell, 9-Exhaust chamber, 10-Connection channel. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] See appendix Figure 1 With appendix Figure 2This utility model provides a water pump self-venting device, including a venting housing 8, an venting hole 6 at the top of the venting housing 8, a valve plug 4 inside the venting housing 8 for opening or closing the venting hole 6, and a transition cavity 2 connected to the bottom of the venting housing 8 via a connecting pipe 10. The transition cavity 2 has a connection port for connecting to a water pump. A guide mechanism 5 inside the venting housing 8 guides the valve plug 4 to open or close the venting hole 6. The density of the valve plug 4 is less than the density of the medium inside the venting housing 8. By setting up the venting housing 8 and the venting hole 6, air inside the water pump can be vented. Simultaneously, the transition cavity 2 between the venting housing 8 and the water pump utilizes the cavity effect to change the fluid's speed and direction, achieving fluid control and regulation, thereby ensuring the venting stability of the automatic venting device.

[0033] The exhaust housing 8 is provided with an exhaust chamber 9. The lower part of the exhaust chamber 9 is provided with a support mechanism 3. The support mechanism 3 is a flat plate structure and has multiple filter holes 31. The connection between the connecting pipe 10 and the exhaust chamber 9 is located below the support mechanism 3. The valve plug 4 is located above the support mechanism 3. The guide mechanism 5 is located above the support mechanism 3. The upper end of the guide mechanism 5 is fixedly connected to the upper wall of the exhaust housing 8.

[0034] The valve plug 4 has a frustum structure, and the exhaust port 6 has a frustum structure that mates with the valve plug 4. The outer wall of the valve plug 4 is covered with an elastic sealing material. By setting the valve plug 4 with a frustum structure, the valve plug 4 will close the exhaust port 6 under the action of buoyancy, and at the same time, it can quickly detach from the exhaust port 6 under the action of gravity to open the exhaust port. By setting the elastic sealing material, the sealing performance of the valve plug 4 can be increased.

[0035] An exhaust cover 7 is provided at the upper end of the exhaust housing 8. An exhaust channel is provided in the middle of the exhaust cover 7. The exhaust channel is connected to the exhaust through hole 6. The exhaust channel includes a first exhaust channel 71 and a second exhaust channel 73 connected to the first exhaust channel 71. A filter screen 72 is provided at the connection between the first exhaust channel 71 and the second exhaust channel 73. The first exhaust channel 71 is connected to the exhaust through hole 6. One end of the second exhaust channel 73 is connected to the first exhaust channel 71, and the other end is connected to the outside. The second exhaust channel 73 is arranged at an angle of 18°. By providing an exhaust cover 7 at the upper part of the exhaust housing 8 and providing an exhaust channel on the exhaust cover 7, the exhaust capacity is ensured while increasing the strength of the exhaust housing 8.

[0036] When the water pump is running, if there is air in the pump chamber, the air will first enter the transition chamber 2 through the connection port 1 for pressure regulation and speed reduction, then enter the exhaust chamber 9 through the connection pipe 10, and be discharged through the second exhaust channel 73 of the exhaust cover 7. When all the air in the pump chamber is expelled and the exhaust chamber 9 is filled with the medium, the valve plug 4 will be placed in the exhaust through hole 6 due to buoyancy, and a seal will be formed between the elastic material covering the surface of the valve plug and the exhaust through hole 6. The start and stop of the exhaust of this device does not require manual intervention and can achieve stable automatic control of exhaust according to the air pressure in the pump, which is convenient for operation and maintenance.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water pump self-venting device, comprising a venting housing (8), wherein the upper part of the venting housing (8) is provided with a venting through hole (6), and a valve plug (4) for opening or closing the venting through hole (6) is provided inside the venting housing (8), characterized in that, The bottom of the exhaust housing (8) is connected to a transition cavity (2) through a connecting pipe (10). The transition cavity (2) is provided with a connection port for connecting a water pump. The exhaust housing (8) is provided with a guide mechanism (5) for guiding the valve plug (4) to open or close the exhaust through hole (6). The density of the valve plug (4) is less than the density of the medium inside the exhaust housing (8).

2. The water pump self-venting device according to claim 1, characterized in that, The exhaust housing (8) is provided with an exhaust chamber (9), and a support mechanism (3) is provided at the lower part of the exhaust chamber (9). The valve plug (4) is located above the support mechanism (3).

3. The water pump self-venting device according to claim 2, characterized in that, The support mechanism (3) is a flat plate structure, and the support mechanism (3) is provided with multiple filter holes (31). The connection between the connecting pipe (10) and the exhaust chamber (9) is located below the support mechanism (3).

4. A water pump self-venting device according to claim 2, characterized in that, The guide mechanism (5) is located above the support mechanism (3), and the upper end of the guide mechanism (5) is fixedly connected to the upper wall of the exhaust housing (8).

5. A water pump self-venting device according to claim 1, characterized in that, The valve plug (4) has a frustum structure, and the exhaust port (6) has a frustum hole structure that mates with the valve plug (4).

6. A water pump self-venting device according to claim 1, characterized in that, The outer wall of the valve plug (4) is covered with an elastic sealing material.

7. A water pump self-venting device according to claim 1, characterized in that, The upper end of the exhaust housing (8) is provided with an exhaust cover (7), and the middle part of the exhaust cover (7) is provided with an exhaust channel, which is connected to the exhaust through hole (6).

8. A water pump self-venting device according to claim 7, characterized in that, The exhaust passage includes a first exhaust passage (71) and a second exhaust passage (73) connected to the first exhaust passage (71). The first exhaust passage (71) is connected to the exhaust through hole (6). One end of the second exhaust passage (73) is connected to the first exhaust passage (71), and the other end is connected to the outside. The second exhaust passage (73) is arranged at an angle.

9. A water pump self-venting device according to claim 8, characterized in that, A filter screen (72) is provided at the connection between the first exhaust channel (71) and the second exhaust channel (73).

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