Water adding structure of livestock drinking water device

Abstract

The utility model relates to the technical field of animal husbandry, in particular to a water adding structure of a water drinking device for animal husbandry. According to the technical scheme, a negative pressure connector is formed in the top end of a water storage tank, a vacuum pump is installed on the surface, located on one side of the negative pressure connector, of the top end of the water storage tank, the vacuum pump is communicated with the negative pressure connector through a negative pressure pipe, a blow-off pipe is arranged at the bottom end of the water storage tank, and a water supplementing pipe is arranged on the end face of one side of the water storage tank; a liquid outlet pipe is arranged on the end face, facing the water tank, of the water storage tank; a limiting shaft is rotationally mounted on the water tank through a fixing plate, a connecting plate and a supporting sleeve are arranged on the limiting shaft in a sleeving manner, and a bent pipe joint is mounted on the connecting plate and communicates with the liquid outlet pipe through a bent pipe. According to the water tank, effective utilization of water resources can be ensured, the waste problem caused by existence of a dead water area is reduced, water can be continuously and stably supplied to the water tank, and the water drinking requirement of animals is met.

Description

Technical Field

[0001] The utility model relates to the technical field of animal husbandry, and particularly relates to a water adding structure of an animal husbandry drinking water device. Background Technique

[0002] Animal husbandry breeding requires drinking troughs, and the existing drinking troughs have many defects. Firstly, due to a large number of breeding workshops and a large number of livestock in the breeding site, the demand for drinking troughs is very large, and manual water addition one by one will bring a huge workload to the staff, not only with extremely low water addition efficiency but also affecting the breeding quality. Secondly, when the temperature is relatively low, the low-temperature breeding water will cause harm to the livestock being raised, which far from meets the current requirements of people for this product.

[0003] After retrieval, the patent with the patent publication number CN208924939U discloses an automatic water adding device for a drinking trough in animal husbandry breeding. Although when the water level in the water storage tank drops during use, the sealing valve will rise to automatically inject water into the water storage tank, solving the tediousness of manual water addition, when the device is in use, the distance between the drinking trough and the main water trough box body is relatively large. Therefore, when the water in the main water trough box body overflows to the drinking trough, there is a dead water area in the main water trough box body. Such an area is prone to accumulating dirt, bacteria and other microorganisms, resulting in water quality deterioration. In animal husbandry, water quality is crucial for the health of animals. The existence of the dead water area may increase the risk of animals getting sick after drinking water. And due to the existence of the dead water area, the water in the main water trough box body cannot be effectively utilized, and part of the water stays in the dead water area for a long time and cannot flow to the drinking trough for animals to drink, causing waste of water resources. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a water adding structure of an animal husbandry drinking water device, which solves the problems put forward in the background technique.

[0005] The solution of the utility model to the above technical problems is as follows:

[0006] A water adding structure of an animal husbandry drinking water device includes a water storage tank, and water troughs are installed on both sides of the water storage tank.

[0007] A negative pressure interface is provided at the top end of the water storage tank. A vacuum pump is installed on the top surface of the water storage tank on one side of the negative pressure interface, and the vacuum pump is communicated with the negative pressure interface through a negative pressure pipe. A sewage pipe is provided at the bottom end of the water storage tank, and a valve is installed at the sewage pipe. A water replenishing pipe is opened on one end face of the water storage tank, and a liquid outlet pipe is opened on the end face of the water storage tank facing the water trough.

[0008] A fixed plate is provided on the water tank. A limiting shaft is rotatably installed on the water tank through the fixed plate. A connecting plate and a support sleeve are sleeved on the limiting shaft. The support sleeve is located between the connecting plate and the fixed plate. A bent pipe joint is installed on the connecting plate. The bent pipe joint is communicated with the liquid outlet pipe through a bent pipe.

[0009] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0010] Further, a damping coating is provided on the contact surface between the connecting plate and the limiting shaft. After the connecting plate rotates by an angle, its position is limited by the damping coating.

[0011] The beneficial effects of adopting the above further solution are:

[0012] The damping coating has certain viscosity and damping performance. When the connecting plate rotates to the required angle, the damping coating can provide sufficient resistance to make the connecting plate stay stably in this position and is not easily displaced due to external factors (such as vibration, wind force, etc.), ensuring the stability and accuracy of the water outlet bent pipe joint. Although the damping coating has certain resistance, its resistance is moderate, which can not only fix the position of the connecting plate but also not make the adjustment process too difficult. Therefore, users can easily adjust the angle of the connecting plate according to actual needs to adapt to the sizes and shapes of different water tanks and the drinking habits of animals.

[0013] Further, the length of the bent pipe joint is adapted to the support sleeve, and the connecting plate is supported by the support sleeve to reserve the installation position of the bent pipe joint.

[0014] The beneficial effects of adopting the above further solution are:

[0015] The length of the bent pipe joint being adapted to the support sleeve means that the bent pipe joint can be installed tightly and stably in the support sleeve, avoiding problems such as shaking or falling off caused by size mismatch. This stable installation method helps to ensure the stability and reliability of the bent pipe joint during long-term use. By supporting the connecting plate through the support sleeve and reserving the installation position of the bent pipe joint, users can easily adjust the position and angle of the bent pipe joint according to actual needs. This design not only improves the flexibility of installation but also simplifies the adjustment process, enabling users to complete the installation and debugging work more quickly.

[0016] Further, a bracket is provided at the bottom end of the water storage tank, and the position of the water storage tank is higher than the position of the water tank.

[0017] The beneficial effects of adopting the above further solution are:

[0018] Since the water storage tank is located above the water trough, water can flow naturally into the water trough by gravity without the need for additional power equipment. This method not only simplifies the water supply system, reduces energy consumption and operating costs, but also improves the stability and reliability of the water supply. The design of the elevated water storage tank reduces the chance of water coming into contact with air, pipes, etc. during transportation, thereby reducing the risk of water quality contamination. This is of great significance for ensuring the safety and hygiene of animal drinking water. When the water level in the water trough drops, due to the high position of the water storage tank, water can quickly replenish into the water trough to keep the water level in the water trough stable. This rapid water supply response ability helps to improve the water supply efficiency and meet the drinking water needs of animals.

[0019] Furthermore, the elbow joint is rotatably installed on the connecting plate, and the position of the elbow joint in the water trough is adjusted by rotating the angle of the connecting plate.

[0020] The beneficial effects of adopting the above further scheme are as follows:

[0021] The elbow joint can be rotatably installed on the connecting plate, which means its position and direction can be flexibly adjusted according to actual needs. By simply rotating the connecting plate, the position of the elbow joint in the water trough can be changed to better adapt to the size, shape of the water trough and the drinking habits of animals. The flexible adjustability enables the elbow joint to always maintain the best water outlet position, thus ensuring that water can flow smoothly into the water trough and improving the water outlet efficiency. This helps to reduce water resource waste and ensure that animals can continuously obtain clean drinking water. The elbow joint is firmly installed on the water trough through the connecting plate, and it can maintain its stability even under the action of animal drinking or external forces, and is not easy to shake or fall off. This stability helps to reduce the problems of water resource waste and inconvenient animal drinking caused by equipment failures.

[0022] Furthermore, when the elbow joint is above the liquid level in the water trough, external air enters the water storage tank through the elbow joint and the liquid outlet pipe to make the water in the water storage tank flow into the water trough, and when the liquid level of the water in the water trough covers the elbow joint, the pressure in the water storage tank remains balanced and the water outlet stops.

[0023] The beneficial effects of adopting the above further scheme are as follows:

[0024] This design realizes the automatic control of water discharge without manual intervention. When the elbow joint is above the water level in the water tank, air can smoothly pass through the elbow joint and the liquid outlet pipe into the water storage tank, breaking the negative pressure state in the water storage tank, causing water to flow out naturally to the water tank under the action of gravity. When the water level in the water tank rises to cover the elbow joint, the air passage is blocked, the pressure in the water storage tank returns to balance, and the water discharge stops automatically. This automatic control mechanism greatly simplifies the operation process and improves the convenience and practicality of the drinking water device. By precisely controlling the timing of water discharge and water stop, this design helps to save water resources. When the water level in the water tank reaches the preset height, the water discharge stops automatically, avoiding the waste of water resources. This is particularly important for the livestock breeding environment, because reasonable water management can reduce breeding costs and improve economic benefits. Since the water discharge is achieved by natural gravity flow and the water discharge process is precisely controlled by the elbow joint and the water level in the water tank, the risk of water quality pollution can be minimized. At the same time, when the water level in the water tank reaches a certain level, the water discharge stops automatically, which also helps to keep the water quality in the water tank clean and hygienic.

[0025] Furthermore, the water storage tank is of a closed structure, and the negative pressure generated by the vacuum pump evacuating the inside of the water storage tank sucks water into the water storage tank from the water supply pipe.

[0026] The beneficial effects of adopting the above further scheme are as follows:

[0027] The design of the closed water storage tank reduces the possibility of external pollutants entering the water tank, which helps to keep the water quality clean and hygienic. At the same time, the vacuum pump does not generate additional pollution during the water pumping process, further ensuring the purity of the water quality. This is crucial for the healthy growth of animals. This design has strong adaptability and can be applied to livestock drinking water devices of different scales and types. Whether it is a small family ranch or a large commercial farm, the system parameters can be adjusted to meet different water supply requirements. At the same time, the system can also be flexibly arranged and optimized according to conditions such as terrain and water source.

[0028] The present utility model provides a water filling structure for a livestock drinking water device. It has the following beneficial effects:

[0029] Through the negative pressure generated by the vacuum pump evacuating the inside of the water storage tank, water can be automatically sucked into the water storage tank from the water supply pipe. This method eliminates the cumbersome manual water filling, improves the degree of automation, and saves labor costs.

[0030] The device is designed with an intelligent water outlet mechanism. That is, when the elbow joint is above the liquid level in the water tank, external air enters the water storage tank through the elbow joint and the liquid outlet pipe, causing the water in the water storage tank to flow into the water tank under the action of the pressure difference. When the water level in the water tank covers the elbow joint, the air passage is blocked, the pressure in the water storage tank returns to balance, and the water outlet stops. This design ensures that the water level in the water tank always remains within a certain range, which not only meets the drinking needs of animals but also avoids waste of water resources.

[0031] The elbow joint is rotatably installed on the water tank through a connecting plate. The rotation angle of the connecting plate can be finely adjusted and fixed through a damping coating, so that the position of the elbow joint can be flexibly adjusted according to actual needs. This design facilitates optimization according to the size, shape of the water tank or the drinking habits of animals, and also facilitates subsequent maintenance and cleaning work.

[0032] The water storage tank is designed at a position higher than the water tank and is firmly supported by a bracket, making the whole device structure compact and stable. At the same time, the principle of negative pressure is used to realize automatic water supply and intelligent water outlet, without additional power equipment or complex control circuits, reducing the manufacturing cost and installation difficulty of the equipment, and also improving the space utilization rate.

[0033] The enclosed structure of the water storage tank reduces the entry of external pollutants and ensures the cleanliness and hygiene of the water quality. At the same time, the design of the sewage pipe facilitates regular cleaning of impurities and dirt in the water storage tank, maintaining the long-term stable operation of the equipment. Description of the Drawings

[0034] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

[0035] In the drawings:

[0036] Figure 1 is the external view schematic diagram of the present utility model;

[0037] Figure 2 is the sectional structure schematic diagram of the water storage tank of the present utility model;

[0038] Figure 3 is the exploded structure schematic diagram of the water tank of the present utility model.

[0039] In the drawings, the list of components represented by each reference numeral is as follows:

[0040] 1. Water storage tank; 101. Vacuum pump; 102. Negative pressure interface; 103. Make-up water pipe; 104. Drain pipe; 105. Liquid outlet pipe; 2. Water tank; 201. Fixed plate; 202. Elbow joint; 203. Connecting plate; 204. Support sleeve; 205. Limit shaft; 3. Bracket. Detailed implementation manner

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figures 1 to 3 as shown, the embodiments provided by the present invention:

[0043] Embodiment 1

[0044] A water supply structure for a livestock drinking water device includes a water storage tank 1, water troughs 2 are installed on both sides of the water storage tank 1, a bracket 3 is provided at the bottom end of the water storage tank 1, and the position of the water storage tank 1 is higher than the position of the water trough 2. Since the water storage tank 1 is located above the water trough 2, water can flow naturally into the water trough 2 by gravity without the need for additional power equipment. This method not only simplifies the water supply system, reduces energy consumption and operating costs, but also improves the stability and reliability of water supply. The design of the high-position water storage tank 1 reduces the chance of water contacting with air, pipes, etc. during transportation, thereby reducing the risk of water quality being contaminated. This is of great significance for ensuring the safety and hygiene of animal drinking water. When the water level in the water trough 2 drops, since the water storage tank 1 is at a high position, water can be quickly added to the water trough 2 to keep the water level of the water trough 2 stable. This rapid water supply response capability helps to improve water supply efficiency and meet the drinking water needs of animals. A negative pressure interface 102 is provided at the top of the water storage tank 1. A vacuum pump 101 is installed on the top surface of the water storage tank 1 on one side of the negative pressure interface 102, and the vacuum pump 101 is connected to the negative pressure interface 102 through a negative pressure pipe. A sewage pipe 104 is provided at the bottom of the water storage tank 1, and a valve is installed at the sewage pipe 104. A water supply pipe 103 is provided on one end face of the water storage tank 1. The water storage tank 1 is a closed structure, and the negative pressure generated by the vacuum pump 101 in the water storage tank 1 sucks water from the water supply pipe 103 into the water storage tank 1. The design of the closed water storage tank 1 reduces the possibility of external pollutants entering the water tank, which helps to keep the water clean and hygienic. At the same time, the vacuum pump 101 will not produce additional pollution during the pumping process, further ensuring the purity of the water quality. This is crucial for the healthy growth of animals. This design has strong adaptability and can be applied to livestock drinking water devices of different scales and types. Whether it is a small family ranch or a large commercial farm, different water supply needs can be met by adjusting system parameters. At the same time, the system can also be flexibly arranged and optimized according to conditions such as terrain and water sources. A liquid outlet pipe 105 is opened on the end face of the water tank 1 facing the water tank 2.

[0045] Embodiment 2

[0046] In order to make the water in the water storage tank 1 automatically flow to the preset height in the water tank 2, for example, Figures 1 to 3As shown in the figure, the present invention further includes: a fixing plate 201 is provided on the water tank 2, a limiting shaft 205 is rotatably installed on the water tank 2 through the fixing plate 201, a damping coating is provided on the contact surface between the connecting plate 203 and the limiting shaft 205, and the position of the connecting plate 203 is limited by the damping coating after rotating by an angle. The damping coating has certain viscosity and damping performance. When the connecting plate 203 rotates to the required angle, the damping coating can exert sufficient resistance to keep the connecting plate 203 stable at this position and will not be easily displaced by external factors (such as vibration, wind force, etc.). In this way, the stability and accuracy of the water outlet elbow joint 202 are ensured. Although the damping coating has a certain resistance, its resistance is just right, which can not only fix the position of the connecting plate 203 but also not make the adjustment process extremely difficult. Therefore, users can easily adjust the angle of the connecting plate 203 according to actual needs to adapt to the sizes and shapes of different water tanks 2 and the drinking habits of animals. A connecting plate 203 and a support sleeve 204 are sleeved on the limiting shaft 205. The support sleeve 204 is located between the connecting plate 203 and the fixing plate 201. The length of the elbow joint 202 is adapted to the support sleeve 204. The connecting plate 203 supports and reserves the installation position of the elbow joint 202 through the support sleeve 204. The length of the elbow joint 202 is mutually adapted to the support sleeve 204, which means that the elbow joint 202 can be tightly and stably installed in the support sleeve 204, avoiding problems such as shaking or falling off caused by size mismatch. This stable installation method is of great significance for ensuring the stability and reliability of the elbow joint 202 during long-term use. The connecting plate 203 is supported by the support sleeve 204, and the installation position of the elbow joint 202 is reserved, enabling users to easily adjust the position and angle of the elbow joint 202 according to actual needs. This design not only improves the flexibility of installation but also simplifies the adjustment process, enabling users to complete the installation and debugging work more quickly. The elbow joint 202 is installed on the connecting plate 203. The elbow joint 202 is rotatably installed on the connecting plate 203, and the position of the elbow joint 202 in the water tank 2 is adjusted by rotating the angle of the connecting plate 203. The elbow joint 202 can be rotatably installed on the connecting plate 203, which means that its position and direction can be flexibly adjusted according to actual needs. By simply rotating the connecting plate 203, the position of the elbow joint 202 in the water tank 2 can be changed to better adapt to the size, shape of the water tank 2 and the drinking habits of animals. This flexible adjustability enables the elbow joint 202 to always be in the best water outlet position, ensuring that water can flow smoothly into the water tank 2 and improving the water outlet efficiency. This helps to reduce water resource waste and ensure that animals can continuously obtain clean drinking water. The elbow joint 202 is stably installed on the water tank 2 through the connecting plate 203 and can maintain its stability even under the action of animal drinking or external forces and is not easily shaken or fallen off.This stability helps to reduce water waste caused by equipment failures and the inconvenience of animals drinking water. The elbow joint 202 is connected to the liquid outlet pipe 105 through an elbow pipe, and a valve is installed on the elbow pipe. When replenishing water into the water tank 1 or when water outlet is not required, the valve is closed. When the elbow joint 202 is above the liquid level in the water trough 2, external air enters the water storage tank 1 through the elbow joint 202 and the liquid outlet pipe 105, causing the water in the water storage tank 1 to flow into the water trough 2. And when the liquid level of the water in the water trough 2 covers the elbow joint 202, the pressure in the water storage tank 1 remains balanced and the water outlet stops. This design realizes the automatic control of water outlet without manual intervention. When the elbow joint 202 is above the liquid level of the water trough 2, air can smoothly enter the water storage tank 1 through the elbow joint 202 and the liquid outlet pipe 105, breaking the negative pressure state in the water storage tank 1, so that the water naturally flows out to the water trough 2 under the action of gravity. When the water level in the water trough 2 rises to cover the elbow joint 202, the air passage is blocked, the pressure in the water storage tank 1 resumes balance, and the water outlet automatically stops. This automatic control mechanism greatly simplifies the operation process and improves the convenience and practicality of the drinking device. By precisely controlling the timing of water outlet and water stop, this design helps to save water resources. When the water level in the water trough 2 reaches the preset height, the water outlet automatically stops, avoiding water waste. This is particularly important for the livestock breeding environment, because reasonable water management can reduce breeding costs and improve economic benefits. Since the water outlet is achieved by natural gravity flow and the water outlet process is precisely controlled by the elbow joint 202 and the water level in the water trough 2, the risk of water quality pollution can be minimized. At the same time, when the water level in the water trough 2 reaches a certain level, the water outlet automatically stops, which also helps to keep the water quality in the water trough 2 clean and hygienic.

[0047] Working principle:

[0048] When the vacuum pump 101 is started, it is connected to the negative pressure interface 102 at the top of the water storage tank 1 through a negative pressure pipe, and the inside of the water storage tank 1 is evacuated to generate negative pressure. Due to the formation of negative pressure inside the water storage tank 1, the external water is sucked into the water storage tank 1 through the water replenishing pipe 103 under the action of the pressure difference, realizing the automatic water replenishing function. This method does not require manual operation and improves the convenience and efficiency of water replenishment.

[0049] The end face of the water storage tank 1 facing the water trough 2 is provided with a liquid outlet pipe 105, which is connected to the elbow joint 202 through an elbow pipe. The elbow joint 202 is installed on the water trough 2 and its angle can be adjusted through the connecting plate 203 and the limiting shaft 205. When the elbow joint 202 is above the liquid level in the water trough 2, external air can enter the water storage tank 1 through the elbow joint 202, the elbow pipe and the liquid outlet pipe 105, destroying the negative pressure state in the water storage tank 1, so that water flows from the water storage tank 1 through the liquid outlet pipe 105 and the elbow pipe into the water trough 2 under the action of gravity, realizing water discharge. When the water level in the water trough 2 rises to cover the elbow joint 202, the air passage is blocked, the pressure in the water storage tank 1 gradually returns to balance, and the water discharge stops. In this way, the water level in the water trough 2 can be maintained within a relatively stable range.

[0050] A damping coating is provided between the connecting plate 203 and the limiting shaft 205, allowing the connecting plate 203 to rotate within a certain range and fix its position, so as to adjust the position of the elbow joint 202 in the water trough 2. This design enables the device to adapt to water troughs 2 of different sizes and shapes, as well as the drinking habits of animals. The bottom end of the water storage tank 1 is provided with a sewage discharge pipe 104, and a valve is installed. When it is necessary to clean the water storage tank 1, the valve can be opened to discharge sewage and impurities, keeping the equipment clean and hygienic.

[0051] The above has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0052] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 supply structure for a livestock drinking water device, comprising a water storage tank (1), water tanks (2) being installed on both sides of the water storage tank (1), characterized in that: The top of the water storage tank (1) is provided with a negative pressure interface (102); a vacuum pump (101) is installed on the top surface of the water storage tank (1) at one side of the negative pressure interface (102); the vacuum pump (101) is connected to the negative pressure interface (102) via a negative pressure pipe; a sewage pipe (104) is provided at the bottom of the water storage tank (1); a valve is installed at the sewage pipe (104); a water supply pipe (103) is provided on one end surface of the water storage tank (1); and a liquid outlet pipe (105) is provided on the end surface of the water storage tank (1) facing the water tank (2); The water tank (2) is provided with a fixing plate (201), a limiting shaft (205) is rotatably mounted on the water tank (2) via the fixing plate (201), a connecting plate (203) and a supporting sleeve (204) are sleeved on the limiting shaft (205), the supporting sleeve (204) is located between the connecting plate (203) and the fixing plate (201), an elbow joint (202) is mounted on the connecting plate (203), and the elbow joint (202) is connected to the liquid outlet pipe (105) via an elbow.

2. The water adding structure of the livestock drinking water device according to claim 1, characterized in that: A damping coating is provided on the contact surface between the connection plate (203) and the limiting shaft (205); after the connection plate (203) rotates at an angle, the position is limited by the damping coating.

3. The water adding structure of the livestock drinking water device according to claim 1, characterized in that: The length of the elbow joint (202) is matched with the support sleeve (204), and the connection plate (203) is supported by the support sleeve (204) to reserve an installation position for the elbow joint (202).

4. The water adding structure of the livestock drinking water device according to claim 1, characterized in that: A bracket (3) is provided at the bottom end of the water storage tank (1), and the position of the water storage tank (1) is higher than that of the water tank (2).

5. The water adding structure of the livestock drinking water device according to claim 3, characterized in that: The elbow joint (202) is rotatably mounted on the connecting plate (203), and the position of the elbow joint (202) in the water tank (2) is adjusted by rotating the angle of the connecting plate (203).

6. The water adding structure of the livestock drinking water device according to claim 5, characterized in that: When the elbow joint (202) is located above the liquid level in the water tank (2), external air enters the water storage tank (1) through the elbow joint (202) and the liquid outlet pipe (105), causing the water in the water storage tank (1) to flow into the water tank (2); and when the liquid level of the water in the water tank (2) covers the elbow joint (202), the pressure in the water storage tank (1) remains balanced and water discharge stops.

7. The water adding structure of the livestock drinking water device according to claim 1, characterized in that: The water storage tank (1) is a closed structure, and the negative pressure generated by the vacuum pump (101) hollowing out the water storage tank (1) causes water to be sucked into the water storage tank (1) through the water supply pipe (103).

Images