Main and auxiliary valve joint control water storage tank water supply device

Abstract

The utility model discloses a main and auxiliary valve joint control water storage tank water supply device which comprises a water supplementing pipeline, a water storage tank, a main valve and a water distribution pipeline, one end of the water supplementing pipeline extends to the water storage tank, the main valve comprises a first valve body arranged on the water supplementing pipeline, and the main valve further comprises a first adjusting mechanism arranged on the water distribution pipeline; the water supply device further comprises a pressure guiding pipe and an auxiliary valve. The auxiliary valve comprises a second valve body and a second adjusting mechanism. The water supply device comprises an open state and a closed state, in the open state, the water level in the water storage tank is lower than a first stop water level, and the first valve body and the second valve body are both opened; in the closed state, the water level in the water storage tank is higher than the first stop water level, and the first valve body and the second valve body are both closed. According to the main and auxiliary valve joint control water storage tank water supply device, the length of the pressure guide pipe is reduced, and the water supply sensitivity is improved; the main valve is more flexible to install and can be suitable for low-level water storage tanks.

Description

TECHNICAL FIELD

[0001] The utility model relates to secondary water supply technical field especially relates to a main vice valve joint control water storage tank water supply device. BACKGROUND

[0002] The secondary water supply device has gradually become the more important water supply facility in residential area, office building and other buildings, water in municipal pipe network first flows into the water storage tank, and then is delivered to each floor by the booster pump set. The existing secondary water supply device such as the patent shown in application number CN202022128465.9, it includes valve body, adjusting mechanism, liquid level transmission pipe, water storage tank and municipal pipe network, municipal pipe network is communicated with water storage tank through valve body, liquid level transmission pipe one end is connected water storage tank bottom, the other end is connected adjusting mechanism, to give adjusting mechanism with water storage tank water pressure transmission, water level in water storage tank drops, water pressure reduces, adjusting mechanism automatically opens valve body to give water storage tank water. The valve body and adjusting mechanism are two parts of the diaphragm valve, the diaphragm valve mainly utilizes the water pressure in adjusting mechanism to drive, therefore, the diaphragm valve and water storage tank need enough height difference, and in practical use, the diaphragm valve is relatively large to ensure water supply speed, to ensure enough height difference between the diaphragm valve and water storage tank, the diaphragm valve can only be installed on the ground, cannot be installed flexibly, part of water storage tank height is low, leading to limited use, on the other hand, the diaphragm valve cannot be very close to water storage tank when installing, leading to long liquid level transmission pipe length, long water pressure transmission path, leading to the shortcoming of slow water supply. CONTENT OF UTILITY MODEL

[0003] The utility model discloses in order to solve the above-mentioned defects of existing secondary water supply device, propose a kind of main vice valve joint control water storage tank water supply device, reduce the length of pressure pipe, improve water supply sensitivity;Main valve installation is more flexible, can be applicable to low-position water storage tank.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] The application discloses a main and auxiliary valve joint control water tank water supply device, which comprises a water supplement pipeline, a water tank, a main valve and a water distribution pipeline, one end of the water supplement pipeline extends to the water tank, the main valve comprises a first valve body arranged on the water supplement pipeline, one end of the water distribution pipeline is in communication with a water inlet end of the first valve body, and the other end of the water distribution pipeline extends to the water tank, and the main valve further comprises a first adjusting mechanism arranged on the water distribution pipeline; the water supply device further comprises a pressure lead pipe and an auxiliary valve, the auxiliary valve is close to the bottom of the water tank, the auxiliary valve comprises a second valve body and a second adjusting mechanism, the water tank is in communication with the second adjusting mechanism through the pressure lead pipe, water pressure is introduced into the second adjusting mechanism, the second adjusting mechanism controls opening and closing of the second valve body according to water pressure of the water tank, thereby changing water pressure of the water distribution pipeline at the first adjusting mechanism, and the first adjusting mechanism controls opening and closing of the first valve body according to water pressure; the water supply device comprises an open state and a closed state, in the open state, water level in the water tank is lower than a first water stop level, and the first valve body and the second valve body are both opened; in the closed state, water level in the water tank is higher than the first water stop level, and the first valve body and the second valve body are both closed.

[0006] Through the above arrangement, firstly, the main valve is controlled by the auxiliary valve, the auxiliary valve plays a control role, the required water pressure is small during operation, the volume is reduced, and the auxiliary valve is close to the bottom of the water tank; secondly, the length of the pressure lead pipe is shortened, the water pressure transmission path is shorter, and the sensitivity of the auxiliary valve is increased; thirdly, the installation position of the main valve is more flexible, and the water supply device is suitable for a low-position water tank; fourthly, the water supply device can be retrofitted on an original water supply device, and the cost is reduced.

[0007] Further, the water distribution pipeline comprises a first section and a second section, the water inlet end of the first valve body is connected with the first adjusting mechanism through the first section, one end of the second section is connected with the first adjusting mechanism, and the other end of the second section extends to the water tank, and the second valve body is arranged on the first section or the second section.

[0008] Further, the second valve body is arranged on the first section, and the inner diameter of the first section is greater than that of the second section.

[0009] Further, the ratio of the inner diameter of the first section to that of the second section is 3:1.

[0010] Further, the first adjusting mechanism comprises a first shell, a first diaphragm, a first valve rod, a first spring and a first valve core, the first shell is fixedly connected to the upper side of the first valve body, the edge of the first diaphragm is fixedly connected in the first shell, a first upper chamber is formed between the upper side of the first diaphragm and the upper side of the first shell, the first section and the second section are in communication with the first upper chamber, the upper end of the first valve rod is fixedly connected with the lower side of the first diaphragm, the lower end of the first valve rod extends into the first valve body and is fixedly connected with the first valve core, the first spring is arranged on the lower side of the first diaphragm, a first flow channel is arranged in the first valve body, and the first spring is used for applying an upward force to the first diaphragm, so that the upper side of the first valve core is in sealing abutment with the first flow channel.

[0011] Through the above setting, when the water pressure in the first upper chamber increases, the first valve core moves downward to open the first flow channel, thereby opening the first valve body; when the water pressure in the first upper chamber decreases, the first spring drives the first valve core upward to seal against the first flow channel, thereby closing the first valve body.

[0012] Further, the second adjusting mechanism comprises a second housing, a second diaphragm, a second valve rod, a second spring and a second valve core, the second housing is fixedly connected to the upper side of the second valve body, the edge of the second diaphragm is fixedly connected in the second housing, the first lower chamber is formed between the lower side of the second diaphragm and the lower side of the second housing, the pressure lead pipe is in communication with the first lower chamber, the lower end of the second valve rod is fixedly connected with the lower side of the second diaphragm and is in sliding sealing connection with the lower side of the second housing, the lower end of the second valve rod extends into the second valve body and is fixedly connected with the second valve core, the second spring is installed on the upper side of the second diaphragm, the second valve body is provided with a second flow channel, the second valve core can seal against the second flow channel under the action of the water pressure in the first lower chamber, and the second spring is used for exerting a downward force on the second diaphragm to make the upper side of the second valve core disengage from the second flow channel.

[0013] Through the above setting, when the water pressure in the first lower chamber increases, the second valve core seals against the second flow channel, thereby closing the second valve body; when the water pressure in the first lower chamber decreases, the second spring drives the second valve core downward to disengage from the second flow channel, thereby closing the second valve body.

[0014] Further, the second valve body is arranged on the second segment; the first adjusting mechanism comprises a third housing, a third diaphragm, a third valve rod, a third spring and a third valve core, the third housing is fixedly connected to the upper side of the first valve body, the edge of the third diaphragm is fixedly connected in the first housing, the second lower chamber is formed between the lower side of the third diaphragm and the lower side of the first housing, the first segment and the second segment are in communication with the second lower chamber, the upper end of the third valve rod is fixedly connected with the third diaphragm, the third spring is installed on the upper side of the third diaphragm, the first valve body is provided with a third flow channel, the third valve core can seal against the third flow channel under the action of the water pressure in the second lower chamber, and the third spring is used for exerting a downward force on the third diaphragm to make the upper side of the third valve core disengage from the third flow channel.

[0015] Through the above setting, when the water pressure in the second lower chamber decreases, the third spring drives the third valve core downward to disengage from the third flow channel, thereby opening the first valve body; when the water pressure in the second lower chamber increases, the third valve core seals against the third flow channel under the action of the water pressure, thereby closing the first valve body.

[0016] Further, the water storage tank is provided with a second water stop level higher than the first water stop level, and the water supply device further comprises a float ball valve installed at the end of the second section, the float ball valve being arranged at the second water stop level, and when the water level in the water storage tank is higher than the second water stop level, the float ball valve is closed, and when the water level in the water storage tank is lower than the second water stop level, the float ball valve is opened.

[0017] Through the above arrangement, when the auxiliary valve fails and the water level continues to rise to the second water stop level, the float ball valve intervenes to close the second section, preventing the water level from continuing to rise and causing water overflow.

[0018] Further, the inner diameter of the first section is substantially the same as the inner diameter of the second section.

[0019] Through the above arrangement, when the second section is draining water, the water pressure in the second lower chamber can be effectively reduced, so that the main valve can be smoothly opened. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the water supply device of the first embodiment.

[0021] Figure 2 It is an enlarged view of A of Figure 1

[0022] Figure 3 It is a schematic view of the water supply device of the first embodiment when it is opened.

[0023] Figure 4 It is a schematic view of the water supply device of the second embodiment.

[0024] Figure 5 It is a schematic view of the water supply device of the second embodiment when it is opened. DETAILED DESCRIPTION

[0025] The technical scheme of the present application will be further specifically explained below by means of embodiments and in combination with the drawings.

[0026] For example, Figures 1 to 3 ​As shown, a main and auxiliary valve joint control water storage tank water supply device, including water replenishment pipeline 3, water storage tank 4, main valve and water distribution pipeline 5, water replenishment pipeline 3 extends to water storage tank 4 at one end, the main valve includes the first valve body 6 arranged on the water replenishment pipeline 3, one end of the water distribution pipeline 5 is communicated with the water inlet end of the first valve body 6, and the other end extends to the water storage tank 4, and the main valve further includes the first adjusting mechanism 7 arranged on the water distribution pipeline 5; the water supply device further includes a pressure lead pipe 8 and an auxiliary valve, the auxiliary valve is close to the bottom of the water storage tank 4, the auxiliary valve includes a second valve body 9 and a second adjusting mechanism 10, the water storage tank 4 is communicated with the second adjusting mechanism 10 through the pressure lead pipe 8, and the water pressure is introduced into the second adjusting mechanism 10, the second adjusting mechanism 10 controls the opening and closing of the second valve body 9 according to the water pressure of the water storage tank 4, thereby changing the water pressure of the water distribution pipeline 5 at the first adjusting mechanism 7, and the first adjusting mechanism 7 controls the opening and closing of the first valve body 6 according to the water pressure; the water supply device includes an open state and a closed state, when the water level in the water storage tank 4 is lower than the first water stop level, the first valve body 6 and the second valve body 9 are both opened in the open state; when the water level in the water storage tank 4 is higher than the first water stop level, the first valve body 6 and the second valve body 9 are both closed in the closed state.

[0027] Through the above setting, first, the main valve is controlled by the auxiliary valve, the auxiliary valve plays a control role, and the required water pressure is small when operating, which is beneficial to reduce the volume and facilitate the installation of the auxiliary valve close to the bottom of the water storage tank; second, the length of the pressure lead pipe is shortened, the water pressure transmission path is shorter, and the sensitivity of the auxiliary valve is increased; third, the installation position of the main valve is more flexible, which is suitable for low-position water storage tank; fourth, the water supply device of the present application can be retrofitted on the original water supply device, which is beneficial to reduce the cost.

[0028] The water supply device of the present application is used in a secondary water supply system; when in use, one end of the water supplement pipeline 3 is connected to the municipal water pipe to provide tap water from the municipal water pipe; initially, the water supply device is in a closed state, the water level in the water storage tank 4 is higher than the first water stop level, in reality, the first water stop level can be 70%-80% of the full water level of the water storage tank, the water pressure in the water storage tank 4 is introduced into the second regulating mechanism 10 through the pressure introduction pipe 8, due to the higher water level in the water storage tank 4 at this time, the water pressure in the second regulating mechanism is larger, under the action of the water pressure, the second valve body remains closed, the tap water in the water distribution pipeline does not flow, and the first valve body 6 is closed; and as the water level in the water storage tank 4 decreases below the first water stop level, the water pressure in the second regulating mechanism 10 is lower than the threshold value, the second regulating mechanism 10 controls the second valve body 9 to open, the tap water in the municipal water pipe enters the water storage tank 4 through the water distribution pipeline 5, the second valve body 9, and the first regulating mechanism 7, due to the water flow in the water distribution pipeline 5, the water pressure in the first regulating mechanism 7 changes, the first regulating mechanism 7 opens the first valve body 6, and the tap water in the municipal water pipe enters the water storage tank 4 through the first valve body 6, at this time, the water supply device is in an open state; as the water level in the water storage tank 4 rises, the water pressure in the second regulating mechanism 10 increases accordingly, when the water level in the water storage tank is higher than the first water stop level, the water pressure in the second regulating mechanism is higher than the threshold value, the second regulating mechanism 10 controls the second valve body 9 to close, the tap water in the water distribution pipeline 5 stops flowing, which causes the water pressure in the water distribution pipeline 5 at the first regulating mechanism 7 to return to the initial state, the first regulating mechanism 7 closes the first valve body 6 according to the water pressure, the water supplement pipeline 3 stops supplementing water to the water storage tank 4, and the water supply device is in a closed state. In the present application, the auxiliary valve controls the opening and closing of the main valve through the water distribution pipeline 5, plays a control and command role, and does not need to be very large in size, the auxiliary valve is generally designed as DN15, can be conveniently installed at the bottom of the water storage tank 4, so that the length of the pressure introduction pipe 8 can be very small, in actual application, the length of the pressure introduction pipe 8 is less than or equal to 1 meter, greatly shortening the efficiency and speed of water pressure transmission; the main valve is mainly used to control the opening and closing of the water supplement pipeline 3, due to the larger diameter of the water supplement pipeline 3, the main valve is also larger in size, and due to the application of the auxiliary valve, the main valve can be arbitrarily installed at a position far away from the water storage tank 4, is more flexible in arrangement, and does not need to consider the height difference with the water storage tank, that is, the height of the water storage tank of the present application is not limited, and can be made into a high position or a low position; moreover, the water pressure of the first regulating mechanism of the main valve of the present application is introduced from the municipal water pipe, the water pressure in the municipal water pipe generally reaches 0.25 MPa, the pressure is larger, and the first regulating mechanism operates more stably. In addition, the specific structures of the first regulating mechanism 7, the first valve body 6, the second regulating mechanism 10, and the second valve body 9 of the present application can also refer to the valve body and the regulating mechanism in the patent with the application number CN202022128465.9, which can control the opening and closing of the valve body under the action of the internal water pressure after the water flows in the regulating mechanism. Therefore, the water supply device of the present application can be obtained by adding an auxiliary valve and modifying the pipeline connection on the basis of the existing water supply device, so as to achieve the purpose of reducing the cost.

[0029] As an implementation, the water diversion pipeline 5 includes a first section 51 and a second section 52, the first valve body 6 water inlet end is connected with the first regulating mechanism 7 through the first section 51, one end of the second section 52 is connected with the first regulating mechanism 7, and the other end extends to the water storage tank 4. The second valve body 9 is arranged on the first section 51 or the second section 52.

[0030] As an implementation, as shown in the figure, the second valve body 9 is arranged on the first section 51, and the inner diameter of the first section 51 is greater than that of the second section 52. Figures 1 to 3

[0031] In the implementation, when the water level in the water storage tank 4 is lower than the first water stop level, the second regulating mechanism 10 controls the second valve body 9 to open, the tap water in the municipal water pipe enters the first regulating mechanism 7 through the first section 51 and the second valve body 9, and the tap water in the first regulating mechanism 7 is discharged into the water storage tank 4 through the second section 52. However, because the inner diameter of the first section 51 is greater than that of the second section 52, the water pressure in the first regulating mechanism 7 is increased compared with that before the second valve body 9 is opened. The first regulating mechanism 7 is driven by the increased water pressure in the first regulating mechanism 7 to control the first valve body 6 to open, and the tap water in the municipal water pipe is discharged into the water storage tank 4 through the water supplement pipeline 3 and the first valve body 6, so that the water level in the water storage tank 4 is increased, and the water pressure in the water storage tank 4 and the second regulating mechanism 10 is also increased. When the water level in the water storage tank 4 is higher than the first water stop level, the second regulating mechanism 10 controls the second valve body 9 to close. At this time, the first section 51 stops supplying water to the first regulating mechanism 7, the water pressure in the first regulating mechanism 7 is released through the second section 52, and the water pressure in the first regulating mechanism 7 is reduced, so that the first valve body 6 is closed again, and the water supplement pipeline 3 stops supplying water to the water storage tank 4.

[0032] As an implementation, the ratio of the inner diameter of the first section 51 to the inner diameter of the second section 52 is 3:1.

[0033] ​As an implementation manner, the first adjusting mechanism 7 comprises a first housing 71a, a first diaphragm 72a, a first valve rod 73a, a first spring 74a and a first valve core 75a, the first housing 71a is fixedly connected to the upper side of the first valve body 6, the edge of the first diaphragm 72a is fixedly connected in the first housing 71a, a first upper chamber 76a is formed between the upper side of the first diaphragm 72a and the upper side of the first housing 71a, the first segment 51 and the second segment 52 are both communicated with the first upper chamber 76a, the upper end of the first valve rod 73a is fixedly connected with the lower side of the first diaphragm 72a, the lower end extends into the first valve body 6 and is fixedly connected with the first valve core 75a, the first spring 74a is installed at the lower side of the first diaphragm 72a, the first valve body 6 is provided with a first flow channel 11, and the first spring 74a is used to exert an upward force on the first diaphragm 72a so that the upper side of the first valve core 75a is sealed against the first flow channel 11.

[0034] Through the above arrangement, when the water pressure in the first upper chamber 76a increases, the first valve core 75a moves downward to open the first flow channel 11, thereby opening the first valve body 6; when the water pressure in the first upper chamber 76a decreases, the first spring 74a drives the first valve core 75a to move upward to be sealed against the first flow channel 11, thereby closing the first valve body 6.

[0035] The left end of the first valve body 6 is a water inlet end connected with a municipal water pipe, and the right end is a water outlet end communicated with the water storage tank 4 through the water supplement pipeline 3; the first valve body 6 is provided with the first flow channel 11, the water inlet end of the first valve body 6 is communicated with the water outlet end through the first flow channel 11, initially, the water supply device is in a closed state, the second valve body 9 is closed, the water pressure in the first upper chamber 76a is low, and the upper side of the first valve core 75a is sealed against the first flow channel 11 under the action of the first spring 74a, the first valve core 75a is basically a conical structure with a small upper part and a large lower part, and the outer periphery is sealed against the first flow channel 11 when moving upward; when the water pressure in the first upper chamber 76a increases, the water pressure on the upper side of the first diaphragm 72a is greater than the spring force on the lower side, the first diaphragm 72a elastically deforms downward and drives the first valve core 75a to move downward through the first valve rod 73a, the first valve core 75a is separated from the first flow channel 11, the first valve body 6 is opened, and tap water flows to the water storage tank 4 through the first flow channel 11, the first valve core 75a and the first valve body 6.

[0036] In one implementation, the second regulating mechanism 10 includes a second housing 105a, a second diaphragm 101a, a second valve stem 102a, a second spring 103a, and a second valve core 104a. The second housing 105a is fixedly connected to the upper side of the second valve body 9. The edge of the second diaphragm 101a is fixedly connected inside the second housing 105a. A first lower chamber 106a is formed between the lower side of the second diaphragm 101a and the lower side of the second housing 105a. The pressure-sensing pipe 8 communicates with the first lower chamber 106a. The lower end of the second valve stem 102a is connected to the second diaphragm 105a. The lower side of valve 104a is fixedly connected and slidably sealed to the lower side of the second housing 105a. The lower end of the second valve stem 102a extends into the second valve body 9 and is fixedly connected to the second valve core 104a. The second spring 103a is installed on the upper side of the second diaphragm 101a. The second valve body 9 is provided with a second flow channel 12. The second valve core can be sealed against the second flow channel upward under the action of water pressure in the first lower chamber. The second spring 103a is used to apply a downward force to the second diaphragm 101a so that the upper side of the second valve core 104a is disengaged from the second flow channel 12.

[0037] With the above settings, when the water pressure in the first lower chamber 106a increases, the second valve core 104a seals against the second flow channel, thereby closing the second valve body 9; when the water pressure in the first lower chamber 106a decreases, the second spring 103a drives the second valve core 104a downward to disengage from the second flow channel 12, thereby closing the second valve body 9.

[0038] The second regulating mechanism 10 of this application has a first lower chamber 106a connected to the bottom of the water storage tank 4 via a pressure-inlet pipe 8. The water pressure at the bottom of the water storage tank 4 is introduced into the first lower chamber 106a via the pressure-inlet pipe 8. The water pressure in the first lower chamber 106a increases as the water level in the water storage tank 4 rises and decreases as the water level falls. When the water level in the water storage tank is higher than the first stop water level, the water pressure in the first lower chamber 106a pushes the second diaphragm 101a upward, causing the upper side of the second valve core 104a to seal against the second flow channel 12, and the second valve body... When valve 9 is closed, the second valve core 104a is basically a conical structure with a smaller top and a larger bottom. When the second valve core 104a moves upward, it can fit tightly against the second flow channel 12. When the water level in the water tank is lower than the first water stop level, the water pressure in the first lower chamber 106a decreases. The second spring 103a drives the second diaphragm 101a to deform downward elastically. The second diaphragm 101a drives the second valve core 104a to move downward through the second valve stem 102a. After the second valve core 104a disengages from the second flow channel 12, the second valve body 9 opens, as shown in the image. Figure 3 As shown, tap water in the municipal water pipe flows into the first upper chamber 76a of the first regulating mechanism 7 through the first section 51 and the first valve body 6.

[0039] In another embodiment, such as Figures 4 to 5As shown, the second valve body 9 is arranged on the second section 52; the inner diameter of the first section is substantially the same as that of the second section, and the ratio of the inner diameter of the first section to that of the second section can be 95%-105%, specifically, the inner diameter of the first section is the same as that of the second section, the first adjusting mechanism 7 comprises a third housing 71b, a third diaphragm 72b, a third valve rod 73b, a third spring 74b and a third valve core 75b, the third housing 71b is fixedly connected to the upper side of the first valve body 6, the third diaphragm 72b is fixedly connected to the inner side of the first housing 71a, a second lower chamber 76b is formed between the lower side of the third diaphragm 72b and the lower side of the first housing 71a, the first section 51 and the second section 52 are in communication with the second lower chamber 76b, the upper end of the third valve rod 73b is fixedly connected to the third diaphragm 72b, the third spring 74b is arranged on the upper side of the third diaphragm 72b, the first valve body 6 is provided with a third flow channel 13, and the third valve core can be in abutting sealing with the third flow channel under the water pressure in the second lower chamber, and the third spring 74b is used to apply a downward force to the third diaphragm 72b so as to separate the upper side of the third valve core 75b from the third flow channel 13.

[0040] Through the above arrangement, when the water pressure in the second lower chamber 76b decreases, the third spring 74b drives the third valve core 75b to separate downwardly from the third flow channel, so as to open the first valve body 6; when the water pressure in the second lower chamber 76b increases, the third valve core 75b is driven upwardly by the water pressure to abut sealingly against the third flow channel, so as to close the first valve body 6.

[0041] The second section 52 of the present application plays a role of pressure relief, when the second valve body 9 is closed, the second section 52 is not in water communication, the water pressure in the municipal water pipe is introduced into the second lower chamber 76b through the first section 51, the water pressure in the second lower chamber 76b is relatively large, which prevents the third diaphragm 72b from deforming downwardly, so that the third valve core 75b is abutted tightly upwardly on the third flow channel 13, the first valve body 6 is closed, and the third valve core 75b is substantially in a conical structure with a small upper side and a large lower side, which can be in abutting sealing with the third flow channel 13 when moving upwardly, when the second valve body 9 is opened, the tap water in the second lower chamber 76b is discharged into the water storage tank 4 through the second section 52 and the second valve body 9, the water pressure in the second lower chamber 76b is released, the third spring 74b drives the third diaphragm 72b to move downwardly, the third diaphragm 72b drives the third valve core 75b to move downwardly through the third valve rod 73b, the third valve core 75b is separated from the third flow channel 13, the first valve body 6 is opened, and the municipal water pipe is discharged into the water storage tank 4 through the first valve body 6, the third flow channel 13 and the water supplement pipeline 3, so as to supplement the water storage tank 4.

[0042] On the basis of this embodiment, as Figures 4 to 5As shown, the water storage tank is provided with a second water stop level higher than the first water stop level, and the water supply device further comprises a float ball valve 14 installed at the end of the second section, the float ball valve 14 is arranged at the second water stop level, when the water level in the water storage tank is higher than the second water stop level, the float ball valve 14 is closed, and when the water level in the water storage tank is lower than the second water stop level, the float ball valve is opened.

[0043] Through the above arrangement, when the auxiliary valve fails and the water level continues to rise to the second water stop level, the float ball valve intervenes to close the second section, preventing the water level from continuing to rise and causing water overflow.

[0044] The water supply device of the present application, under normal conditions of the auxiliary valve function, the water level in the water storage tank is below the second water stop level, and the float ball valve is in the normally open state, when the water level in the water storage tank is lower than the first water stop level, the auxiliary valve and the main valve are both opened, the tap water in the municipal water pipe is discharged into the water storage tank through the water supplement pipeline and the water distribution pipeline, when the water level is higher than the first water stop level, the auxiliary valve and the main valve are closed, and the water supply to the water storage tank is stopped; and in the process of long-term use, the frequent opening and closing of the auxiliary valve may cause the auxiliary valve to lose its sealing property and malfunction, when the water level in the water storage tank reaches the first water stop level, the tap water in the municipal water pipe is still discharged into the water storage tank through the first section, the main valve, the second section and the auxiliary valve, causing the water level in the water storage tank to continue to rise, when the water level rises to the second water stop level, the float ball valve is closed, and the second section stops discharging water, preventing the water level from continuing to rise and causing water overflow.

[0045] It should be understood that for those skilled in the art, improvements or changes can be made according to the above description, and all such improvements and changes shall fall within the protection scope of the appended claims of the present application.

Claims

1. A main and auxiliary valve joint control water storage tank water supply device, characterized in that, The water supply device comprises a water supplement pipeline, a water storage tank, a main valve and a water distribution pipeline, one end of the water supplement pipeline extends to the water storage tank, the main valve comprises a first valve body arranged on the water supplement pipeline, one end of the water distribution pipeline is in communication with a water inlet end of the first valve body, and the other end extends to the water storage tank, the main valve further comprises a first adjusting mechanism arranged on the water distribution pipeline, the water supply device further comprises a pressure lead pipe and a secondary valve, the secondary valve is close to the bottom of the water storage tank, the secondary valve comprises a second valve body and a second adjusting mechanism, the water storage tank is in communication with the second adjusting mechanism through the pressure lead pipe, and water pressure is introduced into the second adjusting mechanism, the second adjusting mechanism controls opening and closing of the second valve body according to water pressure in the water storage tank, so as to change water pressure at the first adjusting mechanism of the water distribution pipeline, and the first adjusting mechanism controls opening and closing of the first valve body according to water pressure. The water supply device comprises an open state and a closed state, in the open state, the water level in the water storage tank is lower than a first water stop level, and the first valve body and the second valve body are both opened, in the closed state, the water level in the water storage tank is higher than the first water stop level, and the first valve body and the second valve body are both closed.

2. The primary and secondary valve associated control water storage tank water supply device according to claim 1, characterized in that, The water distribution pipeline comprises a first segment and a second segment, the water inlet end of the first valve body is connected to the first adjusting mechanism through the first segment, one end of the second segment is connected to the first adjusting mechanism, and the other end extends to the water storage tank, and the second valve body is arranged on the first segment or the second segment.

3. The primary-secondary valve interlocking water storage tank feed device according to claim 2, characterized in that, The second valve body is arranged on the first segment, and an inner diameter of the first segment is greater than an inner diameter of the second segment.

4. The primary-secondary valve interlocked water storage tank feed device according to claim 3, characterized in that, The ratio of the inner diameter of the first segment to the inner diameter of the second segment is 3:

1.

5. The primary-secondary valve interlocked water tank feed device according to claim 3, characterized in that, The first adjusting mechanism comprises a first housing, a first diaphragm, a first valve rod, a first spring and a first valve core, the first housing is fixedly connected to the upper side of the first valve body, the edge of the first diaphragm is fixedly connected in the first housing, a first upper chamber is formed between the upper side of the first diaphragm and the upper side of the first housing, the first segment and the second segment are in communication with the first upper chamber, the upper end of the first valve rod is fixedly connected to the lower side of the first diaphragm, the lower end of the first valve rod extends into the first valve body and is fixedly connected to the first valve core, the first spring is installed on the lower side of the first diaphragm, a first flow channel is arranged in the first valve body, and the first spring is used to exert an upward force on the first diaphragm, so that the upper side of the first valve core is in sealing abutment with the first flow channel.

6. A primary and secondary valve interdependent water tank feed device according to claim 5, characterized in that, The second adjusting mechanism comprises a second housing, a second diaphragm, a second valve rod, a second spring and a second valve core, the second housing is fixedly connected to the upper side of the second valve body, the edge of the second diaphragm is fixedly connected in the second housing, a first lower chamber is formed between the lower side of the second diaphragm and the lower side of the second housing, the pressure lead pipe is communicated with the first lower chamber, the lower end of the second valve rod is fixedly connected with the lower side of the second diaphragm and is slidingly and sealingly connected with the lower side of the second housing, the lower end of the second valve rod extends into the second valve body and is fixedly connected with the second valve core, the second spring is installed on the upper side of the second diaphragm, the second valve body is provided with a second flow channel, the second valve core can be upwardly abutted with the second flow channel under the water pressure in the first lower chamber, and the second spring is used for applying a downward force to the second diaphragm so that the upper side of the second valve core is separated from the second flow channel.

7. The primary-secondary valve interlock water tank feed device according to claim 2, characterized in that, The second valve body is arranged on the second segment. The first adjusting mechanism comprises a third housing, a third diaphragm, a third valve rod, a third spring and a third valve core, the third housing is fixedly connected to the upper side of the first valve body, the edge of the third diaphragm is fixedly connected in the first housing, a second lower chamber is formed between the lower side of the third diaphragm and the lower side of the first housing, the first segment and the second segment are communicated with the second lower chamber, the upper end of the third valve rod is fixedly connected with the third diaphragm, the third spring is installed on the upper side of the third diaphragm, the first valve body is provided with a third flow channel, the third valve core can be upwardly abutted with the third flow channel under the water pressure in the second lower chamber, and the third spring is used for applying a downward force to the third diaphragm so that the upper side of the third valve core is separated from the third flow channel.

8. A primary and secondary valve interdependent water storage tank feed water device according to claim 7, characterized in that, The water storage tank is provided with a second water stop level higher than the first water stop level, the water supply device further comprises a floating ball valve installed at the end of the second segment, the floating ball valve is arranged on the second water stop level, when the water level in the water storage tank is higher than the second water stop level, the floating ball valve is closed, and when the water level in the water storage tank is lower than the second water stop level, the floating ball valve is opened.

9. A primary and secondary valve interdependent water tank feed device according to claim 7, characterized in that, The inner diameter of the first segment is substantially consistent with the inner diameter of the second segment.

Images