TWM605244U - Air release mechanism of self-priming pump - Google Patents

Abstract

This creation is related to a self-priming pump's deaeration mechanism. It is mainly provided with a deaeration mechanism on the path of the water flow inside the self-priming pump. The deaeration mechanism includes a ring seat that is located in the pump. The ring seat is provided with a base, the bottom of the base has a through hole and an action body is inserted into the bottom of the action body, the bottom of the action body is provided with a channel, and an outer cover is covered above the base, and the top of the outer cover It has a gas outlet and a check valve inside; by this, the gas that enters into the machine at the beginning of the operation of the pump can pass through the active body channel of the base and be discharged from the outlet of the outer cover to release the pump and inhale The function of the gas inside the tube facilitates the self-priming pump to complete the self-priming process smoothly.

Description

Air release mechanism of self-priming pump

This creation is about a degassing mechanism of a self-priming pump, especially a degassing mechanism that effectively discharges the gas drawn into or accumulated in the self-priming pump body for its creation and application.

According to this, general pumps are used for emergency flood discharge, underground sewage extraction or emergency pumping in the basement of buildings, etc. The pumps have high mobility and are often used for emergency rescue.

Pumping machines generally cannot be operated under the condition that the pumping pipe is not full of water, especially when the suction water surface is below the inlet of the pumping machine, this problem is more likely to occur. Therefore, it is necessary to install a bottom valve at the front end of the pumping pipe and start the pump every time Check whether the suction pipe is full of water beforehand to avoid idling damage. Therefore, all kinds of self-priming pumps have flourished. The purpose is to make the pumping machine not go through any auxiliary equipment (such as vacuum pump, vent tube, etc.), and directly create a vacuum effect by the pumping machine's own ability, and will The air in the water pipe is gradually exhausted so that the water in the pumping pipe is full of water, so that the pump can operate normally without pumping. A pump that can achieve this function can be called a self-priming pump. The use of self-priming pumps can quickly overcome the environmental obstacles of various water sources under the pump inlet, because the self-priming pumps can discharge the gas in the pipe through its own self-priming method regardless of whether the pumping pipe is full of water or not. And smoothly enter the normal operating state.

However, in order for the pump to create a vacuum (or self-priming process) smoothly, the air in the water pipe must be discharged outside the pump, otherwise the self-priming process will fail. If a simple mechanism is provided to discharge the air, it is easy to face that when the pump is running normally, water will flow out through this channel, which will bring inconvenience to use. Therefore, if an air release mechanism can be provided, it can achieve self-priming The process discharges air, but the pump does not discharge water after normal operation, which is a very important application method.

In addition, in the self-priming process of the above-mentioned pumping machine, there is a very important pre-work that must be achieved, that is, the minimum water level in the pumping cabinet must be first (without filling the entire unit) before the self-priming process can take place. Although the self-priming pump has a corresponding design mechanism to reduce the minimum water level limit so that the water can be kept in the shell, if the water level is insufficient due to factors such as the new machine leaving the factory, maintenance or long-term use, the water level cannot be used. The suction pump can perform the self-priming process normally, so it cannot enter the normal operation stage autonomously.

For this reason, there is an application situation where the vacuum auxiliary system is added to the self-priming pump, that is, the vacuum system is installed in the inlet pipe of the self-priming pump, so that the self-priming pump can have two convenient effects. One is to exempt the minimum water level. Second, when the vacuum system fails and the lowest water level in the pump housing is sufficient, the self-priming pump can still complete the self-priming process. In this way, the application effect of the field environment can be greatly improved.

But also because the self-priming pump adds the vacuum system, the aforementioned release mechanism will encounter the problem of vacuum break, that is, in order to meet the self-priming process of the self-priming pump, the air in the suction pipe must be passed through the release The air mechanism is discharged, but if you want to add a vacuum system to the inlet, you cannot let the air flow back into the pump through the air release mechanism to avoid the failure of the vacuum system. Therefore, how can the air release mechanism achieve smooth exhaust during the self-priming process? The three conditions that the vacuum system does not intake air when assisted, and do not drain after normal operation (effectively preventing leakage) are an important issue.

In addition, in the self-priming process of the self-priming pump, when the air in the pumping pipe is to be removed, the impedance of the air flow path should not be too large, otherwise the air cannot be effectively discharged and the self-priming process will fail. As mentioned in the previous paragraph, because the degassing mechanism needs to be able to exhaust but not intake, check valves are often used to achieve the effect, but the check valve is often a component with high impedance, so how to match the check valve to make the vacuum assist system Smoother use becomes the fourth important issue.

Today, in view of this, the creators have years of rich experience in design and development and actual production in the related industry, and then research and improve them, and provide a self-priming pumping air release mechanism in order to achieve better practical value. .

The main purpose of this creation is to provide a degassing mechanism for a self-priming pump, especially a degassing mechanism that effectively discharges the gas drawn into the body.

The main purpose and effect of the air release mechanism of the self-priming pump in this creation are achieved by the following specific technical means:

It is mainly provided with an air release mechanism on the path for pumping water flow inside the self-priming pump. The air release mechanism includes a ring seat located in the pump. A base is provided on the ring base, and the bottom of the base has a through hole And an action body is inserted, the bottom of the action body is provided with a channel, and an outer cover body is covered above the base, the top of the outer cover body has a gas outlet, and a check valve is arranged inside; Therefore, the gas that enters into the machine when the pump is started to operate can pass through the active body channel of the base and be led out from the outlet of the outer cover to achieve the function of releasing the gas inside the pump.

In a preferred embodiment of the air release mechanism of the self-priming water pump of the present invention, a first sealing ring is respectively provided at the periphery of the base corresponding to the step hole of the ring seat and corresponding to the outer cover.

A preferred embodiment of the air release mechanism of the self-priming pump of the present invention, wherein the outer cover is provided with a sealing washer corresponding to the base and the acting body, and then the sealing washer of the outer cover is provided A second sealing ring is provided on the inner side corresponding to the acting body.

In order to have a more complete and clear disclosure of the technical content, the purpose of creation and the effect achieved in this creation, we will explain them in detail below, and please refer to the figures and figure numbers disclosed together:

First of all, please refer to the first to fourth figures of the self-priming water pump's overall appearance, combined appearance, and three-dimensional exploded schematic diagram. It is mainly provided with a gas release mechanism on the path of the pumping water flow inside the pump (1) (2), the air release mechanism (2) includes:

A ring seat (21) is used to be positioned on the base of the pump (1), and a cushion body (211) is arranged between the pump (1), and a step is arranged in the center of the ring seat (21) Hole (212);

A base (22) is correspondingly arranged in the ring seat (21). The base (22) has an accommodating space (221), and the opening end of the accommodating space (221) forms a ring (222) ), the ring edge (222) is correspondingly embedded in the stepped hole (212), and a through hole (223) is provided at the bottom of the accommodating space (221);

An acting body (23) is correspondingly inserted into the accommodating space (221) of the base (22), and the bottom end surface of the acting body (23) is recessed with at least one passage (231) through the end surface;

An outer cover (24) is correspondingly fixed on the ring seat (21) and covers the base (22) and restricts the action body (23), which is fixed on the outer cover (24) Corresponding to the base (22) and the action body (23) are provided with a sealing washer (241), and there is an air flow space (242) in the outer cover (24), the air flow space (242) A gas discharge port (243) extends to the top, and a check valve (244) is arranged between the gas flow space (242) and the gas discharge port (243).

When assembling and using, please refer to the first to seventh pictures, the air release mechanism (2) is provided on the path of the pumping water flow inside the water pump (1), so that the air release mechanism (2) is assembled in the water pump (1) ) At the port (11), the ring seat (21) is fixed to the port (11) of the pump (1), and in order to prevent pressure and water seepage problems, the pump (1) and the pump A cushion body (211) is provided between the ring bases (21), and a base (22) is built into the ring base (21), and the ring edge (222) of the base (22) is correspondingly embedded in the ring base Step hole (212) of (21), and then put the acting body (23) into the accommodating space (221) of the base (22), the acting body (23) is larger than the bottom of the accommodating space (221) The through hole (223) will not fall out, and let the channel (231) on the bottom end of the acting body (23) correspond to the through hole (223), and then assemble the outer part of the check valve (244) inside. The cover (24) covers the top of the base (22), and at the same time, the outer cover (24) is locked on the ring seat (21). When the action body (23) rises, the The outer cover body (24) has the function of limiting the function body (23), and the outer cover body (24) is provided at the position corresponding to the base (22) and the function body (23) to prevent leakage The sealing washer (241) to complete the installation of the air release mechanism (2).

Of course, in order to consider the sealing effect, the ring edge (222) of the base (22) corresponding to the stepped hole (212) of the ring seat (21) and the outer cover (24) are respectively provided with A sealing ring (25), and a second sealing ring (26) is provided on the inner side of the sealing washer (241) of the outer cover (24) corresponding to the acting body (23).

When operating, first start the pump (1) motor [not shown in the figure], so that the drive shaft (12) rotates and drives the impeller, so that the external water or air is sucked in, which originally exists in the pump (1) And the air entrained with the external water will enter the inside of the base (22) through the through hole (223) in the air release mechanism (2), and the air is mainly from the channel (231) on the bottom end of the action body (23). ) Is introduced into the accommodating space (221) of the base (22), and then through the airflow space (242) to the check valve (244), and then discharged from the gas outlet (243) [because of the check valve (244) ) Without introducing external air into the interior]; let water continue to enter the pump (1) under the rapid drive of the impeller, and continue to discharge air to generate negative pressure suction. When the water rises to a certain height, it will top the action The body (23) gradually rises. When the action body (23) rises to resist the outer cover (24), the internal air is completely discharged and released, and the pressure is released, forming an internal vacuum state [negative pressure ], so that the water pump (1) maintains a self-priming pumping state.

Based on the above, the composition of the creative structure and the use and implementation description show that, compared with the existing structure, this creation satisfies the anti-intake function when the vacuum assist system is activated, and also has the self-priming process of the pump. Effective exhaust method, and the undrained (effective leakage prevention) effect when the pump is running normally.

The foregoing embodiments or drawings do not limit the structure of this creation, and any appropriate changes or modifications by those with ordinary knowledge in the technical field should be regarded as not departing from the scope of the patent of this creation.

In summary, this creative embodiment can indeed achieve the expected use effect, and the specific structure disclosed by it has not been seen in similar products, nor has it been disclosed before the application. It is sincerely in full compliance with the provisions and requirements of the Patent Law. , Yan submits an application for a new patent in accordance with the law, and asks for favors for examination and grants a patent.

1: Pumping machine

11: port

12: drive shaft

2: Release mechanism

21: Ring seat

211: Pad Body

212: step hole

22: Base

221: housing space

222: Ring

223: Through Hole

23: Acting body

231: Channel

24: Outer cover

241: Seal washer

242: Airflow Space

243: gas outlet

244: check valve

25: The first sealing ring

26: The second sealing ring

The first picture: the overall appearance of the self-priming pump of this creation.

Figure 2: Schematic diagram of the appearance of the three-dimensional combination of the release mechanism of this creation.

Figure 3: The three-dimensional exploded schematic diagram of the release mechanism of this creation.

Figure 4: A schematic diagram of the three-dimensional appearance of the active body of this creation.

Figure 5: A schematic cross-sectional view of the self-priming pumping unit of this creation.

Figure 6: A schematic diagram of the action of the combination of the release mechanism in this creation.

Figure 7: The second schematic diagram of the action of the combination of the release mechanism of this creation.

2: Release mechanism

21: Ring seat

211: Pad Body

212: step hole

22: Base

221: housing space

222: Ring

223: Through Hole

23: Acting body

231: Channel

24: Outer cover

241: Seal washer

242: Airflow Space

243: gas outlet

244: check valve

25: The first sealing ring

26: The second sealing ring

Claims (3)

An air release mechanism of a self-priming water pump is mainly provided with an air release mechanism on the path of the water supply flow inside the pump, and the air release mechanism includes: A ring seat is used to be positioned on the base of the pump, and a cushion body is arranged between the pump and the center of the ring seat is provided with a stepped hole; A base is correspondingly arranged in the ring seat, the base has an accommodating space, the open end of the accommodating space forms a ring edge, the ring edge is correspondingly embedded in the stepped hole, and then in the container A through hole is provided at the bottom of the storage space; An action body corresponding to the accommodating space of the base, the bottom end surface of the action body is recessed with at least one passage through the end surface; An outer cover is correspondingly fixed on the ring seat and covers the top of the base and restricts the acting body. A stop washer is provided on the outer cover corresponding to the base and the acting body , There is a gas flow space in the outer cover body, the gas flow space extends to the top with a gas discharge port, and a check valve is arranged between the gas flow space and the gas discharge port. According to the air release mechanism of the self-priming water pump according to claim 1, wherein a first sealing ring is respectively provided at the edge of the base corresponding to the step hole of the ring seat and corresponding to the outer cover. The air release mechanism of the self-priming pump according to claim 1, wherein a second sealing ring is provided on the inner side of the sealing washer of the outer cover corresponding to the acting body.

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