An automatic water-loading bottom valve with a float

Abstract

This invention discloses an automatic bottom valve with a float, comprising a bottom valve body, an inlet on the side wall of the bottom valve body, and an outlet at the right end. A mounting plate is installed inside the bottom valve body, dividing the interior into a first chamber and a second chamber. A waterproof cover is installed at the left end of the bottom valve body. A battery and a controller are housed in the first chamber, and a motor is housed in the second chamber. The motor output shaft is connected to an impeller, and a check valve structure is located at the right end of the impeller to prevent backflow. A sensor is installed on the mounting plate, and the sensor, battery, motor, and controller are connected. The bottom valve body has several filter holes forming the inlet. A detachable float is also installed on the bottom valve body. This invention prevents debris from entering the bottom valve during practical use, avoiding blockages or damage to the equipment, thus enhancing safety.

Description

Technical Field

[0001] This invention relates to the field of bottom valve technology, specifically to an automatic bottom valve with a float. Background Technology

[0002] A check valve, also known as a non-return valve, is a low-pressure flat valve. Its function is to ensure unidirectional flow of liquid in the suction pipe, allowing the pump to operate normally. When the pump stops briefly, it prevents liquid from returning to the water source tank, ensuring the suction pipe is full of liquid to facilitate pump restart. A foot valve is an energy-saving valve, typically installed at the bottom of the pump's underwater suction pipe. It restricts the return of liquid from the pump pipe to the water source, functioning as a one-way valve (inflow only). The valve cover has multiple inlets and reinforcing ribs to prevent clogging. It is mainly used in pumping pipelines and comes in single-flap, double-flap, and multi-flap types, with flange and threaded connections. Currently, larger diameter foot valves on the market typically use a flap-type check valve structure; however, this flap-type structure is prone to jamming during use, leading to malfunction.

[0003] In existing technologies, bottom valves are generally installed at the bottom of the water. In actual use, this can easily cause them to sink to the bottom and operate. In pools and ditches with a lot of silt, water containing impurities can easily enter the water pump directly, causing the pump to become blocked or damaged. In addition, some systems use ropes to suspend the bottom valve in the water. As the water level drops, the bottom valve and the pump can easily run without load, causing damage to the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic bottom valve with a float, which can prevent debris from entering the bottom valve in actual use, thus avoiding blockage or damage to the equipment and making it safer to use.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] An automatic bottom valve with a float includes a bottom valve body, an inlet on the side wall of the bottom valve body, an outlet on the right end, and an installation plate inside the bottom valve body, which divides the interior of the bottom valve body into a first chamber and a second chamber.

[0007] A waterproof cover is provided on the left end of the bottom valve body. A battery and a controller are provided in the first chamber. A motor is provided in the second chamber. An impeller is connected to the output shaft of the motor. A check valve structure is provided on the right end of the impeller to prevent water backflow. A sensor is provided on the mounting plate. The sensor, battery, motor and controller are connected.

[0008] The bottom valve body is provided with a number of filter holes, which form the water inlet; the bottom valve body is provided with a detachable float.

[0009] The waterproof cover is connected to the bottom valve body by threads, and a sealing gasket is provided between the cover and the bottom valve body.

[0010] Further optimization involves installing a waterproof charging connector in the first chamber for connection to the battery.

[0011] The first chamber contains a waterproof power switch, which is located between the battery and the controller.

[0012] Furthermore, a handle is provided at the end of the waterproof cap.

[0013] Further optimization involves an external thread on the bottom valve body located on the outlet side, a float fixedly mounted on a bracket, an mounting ring at the end of the bracket with an internal thread, and the bracket being threadedly fixedly mounted on the bottom valve body.

[0014] The pontoon is equipped with an air inlet and a drain outlet at both ends, and both the air inlet and the drain outlet are fitted with plugs.

[0015] Further optimization is achieved by including a check valve structure comprising a first fixed plate, a second fixed plate, a connecting column, a guide rod, a spring, and a baffle. The first and second fixed plates are connected by the connecting column to form an integral structure. The first and second fixed plates are fixedly disposed within the second chamber of the bottom valve body. The guide rod is slidably disposed on the first and second fixed plates. The baffle is located between the first and second fixed plates and fixedly disposed on the guide rod. The spring is located between the baffle and the second fixed plate and is fitted onto the guide rod. The right end of the guide rod passes through the second fixed plate and is connected to a limiting part. A water flow hole is provided on the first fixed plate. When there is no water flow in the bottom valve body, the baffle blocks the water flow hole by pressing against the first fixed plate under the action of the spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention mainly consists of a bottom valve body, a mounting plate, a waterproof cover, a controller, a motor, and a float. In actual use, the filter holes on the bottom valve body filter out impurities, and the sensors detect contact water signals. The controller is mainly used to remotely control the start and stop of the motor. The float allows the invention to float on the water surface during actual use. Water enters the bottom valve body through the filter holes. After the bottom valve body is submerged in water, the controller can start the motor based on the contact water signal transmitted by the sensors, thereby driving the impeller to rotate and lifting the external water to the upstream equipment pump. Compared with traditional bottom valves, this invention not only avoids the suction of impurities into the bottom valve, preventing damage to the bottom valve and upstream equipment, but more importantly, it allows the valve to float on the water surface, moving with the water level and avoiding damage to the equipment due to no-load operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram showing the connection relationship between the buffer assembly and the left and right valve bodies in Embodiment 3 of the present invention.

[0021] Figure 3 For the present invention Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 This is a schematic diagram showing the installation relationship between the buffer component and the motor of the present invention.

[0023] Figure label:

[0024] 1-Bottom valve body, 2-Inlet, 3-Outlet, 4-Mounting plate, 5-First chamber, 6-Second chamber, 7-Waterproof cover, 8-Battery, 9-Controller, 10-Motor, 11-Impeller, 12-Check valve structure, 13-Sensor, 14-Filter hole, 15-Float, 16-Waterproof charging connector, 17-Waterproof power switch, 18-Handle, 19-Mounting ring, 20-Bracket, 21-First fixing plate, 22-Second fixing plate, 23-Connecting column, 24-Guide rod, 25-Spring, 26-Baffle, 27-Buffer cylinder, 28-Connecting shaft, 29-Universal joint, 30-Slide groove, 31-Slider, 32-Water flow hole, 34-Air inlet, 35-Drain outlet, 36-Plug;

[0025] 37-Left valve body, 38-Right valve body, 39-Buffer assembly, 40-Support plate, 41-Guide cylinder, 42-First guide rod, 43-First spring, 44-Fixing nut, 45-Baffle plate, 46-End plate, 47-First sliding plate, 48-Second sliding plate, 49-Support rod, 50-Vertical rod, 51-Second spring, 52-Buffer pad, 53-Impeller fixing plate, 54-Rotating shaft, 55-Universal joint mechanism, 56-Slot, 57-Slot block, 58-First buffer pad, 59-Snap-fit ​​part, 60-Buffer pad block. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0032] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] Example 1

[0034] See Figure 1 This embodiment discloses an automatic bottom valve with a float, including a bottom valve body 1, a water inlet 2 on the side wall of the bottom valve body 1, a water outlet 3 on the right end, and an installation plate 4 inside the bottom valve body 1, which divides the interior of the bottom valve body 1 into a first chamber 5 and a second chamber 6.

[0035] A waterproof cover 7 is provided on the left end of the bottom valve body 1. A battery 8 and a controller 9 are provided in the first chamber 5. A motor 10 is provided in the second chamber 6. The output shaft of the motor 10 is connected to an impeller 11. A check structure 12 is provided on the right end of the impeller 11. The check structure 12 is used to prevent water backflow. A sensor 13 is provided on the mounting plate 4. The sensor 13, the battery 8, the motor 10 and the controller 9 are connected.

[0036] The bottom valve body 1 is provided with a plurality of filter holes 14, which form the water inlet 2; the bottom valve body 1 is provided with a detachable float 15.

[0037] This invention mainly consists of a bottom valve body 1, a mounting plate 4, a waterproof cover 7, a controller 9, a motor 10, and a float 15. In actual use, the filter holes 14 on the bottom valve body 1 filter out impurities, and the sensor 13 detects the contact water signal. The controller 9 is mainly used to remotely control the start and stop of the motor 10. The float 15 allows the invention to float on the water surface during actual use. Water enters the bottom valve body through the filter holes 14. After the bottom valve body 1 is submerged in water, the controller 9 can control the motor 10 to start based on the contact water signal transmitted by the sensor 13. This causes the motor 10 to drive the impeller 11 to rotate, lifting the external water to the upstream equipment pump. Compared with traditional bottom valves, this invention not only avoids the suction of impurities into the bottom valve, preventing damage to the bottom valve and upstream equipment, but more importantly, it allows the valve to float on the water surface. The bottom valve can move with the water level, avoiding damage to the equipment due to no-load operation.

[0038] In actual use, the suction pipeline of the foot valve needs to be primed with water or evacuated to enable the upstream equipment (water pump) to operate normally. In practice, priming or evacuating is time-consuming and unreliable, causing the equipment to fail to operate normally quickly. However, this invention adds a motor 10 and impeller 11 inside the foot valve and uses a battery 8 to provide power for automatic control. After connecting the pipeline, the invention can be directly placed in water, at which point the motor 10 will immediately turn on. Under the action of the motor 10 and the upstream water pump, the pipeline can be quickly filled with water. After the pipeline is filled with water, the motor 10 can be turned off or kept in operation to reduce the pressure on the water pump.

[0039] In actual use, the float 15 is detachably connected to the bottom valve body 1, which allows the float 15 to be installed or removed according to the usage environment, making it more convenient to use.

[0040] The waterproof cover 7 is connected to the bottom valve body 1 by a thread, and a sealing gasket is provided between the cover and the bottom valve body 1; the threaded connection makes it more convenient to use.

[0041] The first chamber 5 is equipped with a waterproof charging connector 16 that is connected to the battery 8; the waterproof charging connector 16 facilitates charging the battery 8 after the waterproof cover 7 is opened.

[0042] Further optimization involves installing a waterproof power switch 17 within the first chamber 5, located between the battery 8 and the controller 9. This waterproof power switch 17 allows the battery 8 to be disconnected when not in use, reducing battery degradation.

[0043] The waterproof cover 7 is provided with a handle 18 at one end; the handle 18 facilitates the installation of the waterproof cover 7 and makes the operation more convenient.

[0044] The bottom valve body has an external thread on one side of the outlet 3. The float 15 is fixedly mounted on a bracket 20. The end of the bracket 20 has a mounting ring 19 with an internal thread. The bracket 20 is threadedly fixed on the bottom valve body 1, which facilitates the installation and fixation of the float 15.

[0045] In this embodiment, the check valve structure 12 includes a first fixed plate 21, a second fixed plate 22, a connecting post 23, a guide rod 24, a spring 25, and a baffle 26. The first fixed plate 21 and the second fixed plate 22 are connected by the connecting post 23 to form an integral structure. The first fixed plate 21 and the second fixed plate 22 are fixedly installed in the second chamber 6 inside the bottom valve body 1. The guide rod 24 is slidably installed on the first and second fixed plates. The baffle 26 is located between the first and second fixed plates and is fixedly installed on the guide rod 24. The spring 25 is located between the baffle 26 and the second fixed plate 22 and is fitted onto the guide rod 24. The right end of the guide rod 24 passes through the second fixed plate 22 and is connected to a limiting part. The first fixed plate 21 is provided with a water flow hole 32. When there is no water flowing in the bottom valve body 1, under the action of the spring 25, the baffle 26 abuts against the first fixed plate 21 to block the water flow hole 32. The check valve structure 12 can prevent water backflow.

[0046] Further optimization involves providing a water-dividing section 33 on the water-facing surface of the baffle 26.

[0047] The water distribution section 33 is hemispherical, conical, or pyramidal in shape. In this way, the water distribution section 33 can guide the water flow, prevent the water flow from directly impacting the baffle 26, and ensure that the water flow passes through the check structure 12 more smoothly.

[0048] In practical use, this invention floats on the water surface to operate without touching the bottom, effectively avoiding impurities and silt in the adsorption tank; at the same time, it can achieve automatic water filling, and the water pump suction pipe does not need to be filled with water or vacuumed during use; it realizes the combination of bottom valve and automatic water filling, and only one water filling is needed to ensure that the suction pipe is kept full of water.

[0049] Example 2

[0050] This embodiment is a further optimization based on Embodiment 1. In this embodiment, the float 15 is provided with an air inlet 34 and a drain outlet 35 at both ends, and both the air inlet 34 and the drain outlet 35 are equipped with plugs 36. In this way, in actual use, the overall buoyancy of the invention can be changed by controlling the amount of water inside the float 15, thereby enabling fine adjustment of the distance between the water inlet 2 and the liquid surface.

[0051] Example 3

[0052] See Figures 1-4 This embodiment is a further optimization based on the first embodiment. In actual use, in order to reduce the pressure of the upstream equipment water pump, the impeller 11 will be kept rotating. Since the bottom valve is in a floating state, the continuous operation of the motor 10 will cause the bottom valve to shake violently on the water surface.

[0053] Therefore, in actual use, the bottom valve body 1 includes a left valve body 37 and a right valve body 38. The mounting plate 4 is located inside the left valve body 37, the filter hole 14 is disposed on the right valve body 38, the check structure 12 is installed inside the right valve body 38, and the motor 10 is installed inside the right valve body 38 through the buffer assembly 39.

[0054] The buffer assembly 39 includes a support plate 40, a guide cylinder 41 integral with the support plate 40, and a first guide rod 42 slidably installed in the guide cylinder 41. A first spring 43 is fitted on the left end of the first guide rod 42, and a fastening nut 44 is threadedly connected to the left end of the first guide rod 42. A baffle 45 is provided between the spring 25 and the fastening nut 44.

[0055] An end plate 46 is provided at the right end of the first guide rod 42, and the first guide rod 42 and the end plate 46 form a T-shaped structure. A first sliding plate 47 is slidably disposed on the end plate 46, and a second sliding plate 48 is slidably disposed on the first sliding plate 47. The first sliding plate 47 can slide back and forth on the end plate 46, and the second sliding plate 48 can slide up and down on the first sliding plate 47. That is, the sliding directions of the first sliding plate 47 and the second sliding plate 48 are perpendicular. The motor 10 is mounted on the second sliding plate 48.

[0056] Support rods 49 are evenly distributed on the support plate 40. Each support rod 49 is equipped with a vertical rod 50. The vertical rod 50 is positioned towards the motor 10. A second spring 51 is fitted on the vertical rod 50. The end of the second spring 51 contacts the side wall of the motor 10 through a buffer pad 52.

[0057] The right valve body 38 also contains an impeller fixing plate 53, on which a rotating shaft 54 ​​is rotatably mounted. One end of the rotating shaft 54 ​​is connected to the impeller 11, and the other end is connected to the output end of the motor 10 through a universal joint mechanism 55.

[0058] A slot 56 is provided at the end of the left valve body 37, a block 57 is provided on the right valve body 38, a first buffer pad 58 is provided between the left valve body 37 and the right valve body 38, and the left and right valve bodies 38 are connected together by bolts.

[0059] The support plate 40 is provided with a snap-fit ​​part 59, which is located in the slot 56. Buffer pads 60 are provided on both sides of the snap-fit ​​part 59. After the left and right valve bodies 38 are connected together, the snap-fit ​​block 57 on the right valve body 38 cooperates with the slot 56, and the support plate 40 is tightly fixed in the slot 56 by the buffer pads 60.

[0060] In actual use, a buffer cylinder 27 is fitted on the guide cylinder 41. Under the action of the first spring 43, the end plate 46 is in close contact with the right end of the buffer cylinder 27, which is made of rubber material.

[0061] Thus, in actual use, the motor 10 is movably installed inside the right valve body 38. Under the action of the first guide rod 42 and the first spring 43, the motor 10 can move left and right; under the action of the first sliding plate 47 and the second sliding plate 48, the motor 10 can move forward and backward and up and down; at the same time, under the action of the support rod 49 and the second spring 51, the motor 10 can be limited; and the buffer pad 60 can achieve a soft connection with the support plate 40, reducing the transmission of vibration. In this way, during operation, the movement of the motor 10 cancels out vibration, thereby reducing the swaying amplitude of the bottom valve on the water surface.

[0062] In actual use, the universal joint mechanism 55 includes a connecting shaft 28 and cross universal joints 29 respectively disposed at the left and right ends of the connecting shaft 28. The connecting shaft 28 is connected to the output shaft and rotating shaft 54 ​​of the motor 10 through the cross universal joints; this ensures that the motor 10 can transmit power when it is displaced.

[0063] In actual use, the first slide plate 47 and the end plate 46, and the first slide plate 47 and the second slide plate 48 are connected by a slide groove 30 and a slider 31. The slide groove 30 is preferably a T-shaped slide groove or a dovetail-shaped slide groove.

[0064] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic bottom valve with a float, comprising a bottom valve body, characterized in that: The bottom valve body has an inlet on its side wall and an outlet on its right end. The bottom valve body has an installation plate that divides the interior of the bottom valve body into a first chamber and a second chamber. A waterproof cover is provided on the left end of the bottom valve body. A battery and a controller are provided in the first chamber. A motor is provided in the second chamber. An impeller is connected to the output shaft of the motor. A check valve structure is provided on the right end of the impeller to prevent water backflow. A sensor is provided on the mounting plate. The sensor, battery, motor and controller are connected. The bottom valve body is provided with a plurality of filter holes, which form the water inlet; the bottom valve body is provided with a detachable float. The bottom valve body includes a left valve body and a right valve body. The motor is installed in the right valve body through a buffer assembly. The buffer assembly includes a support plate, a guide cylinder integral with the support plate, and a first guide rod slidably installed in the guide cylinder. A first spring is fitted on the left end of the first guide rod, and a fastening nut is threaded to the left end of the first guide rod. A baffle is provided between the spring and the fastening nut. An end plate is provided at the right end of the first guide rod, and the first guide rod and the end plate form a T-shaped structure. A first slide plate is slidably provided on the end plate, and a second slide plate is slidably provided on the first slide plate. The first slide plate can slide back and forth on the end plate, and the second slide plate can slide up and down on the first slide plate. The sliding directions of the first slide plate and the second slide plate are perpendicular. The motor is mounted on the second slide plate.

2. The automatic bottom valve with float as described in claim 1, characterized in that: The waterproof cap is connected to the bottom valve body by threads, and a sealing gasket is provided between the cap and the bottom valve body.

3. The automatic bottom valve with float as described in claim 1, characterized in that: The first chamber is equipped with a waterproof charging connector that connects to the battery.

4. The automatic bottom valve with float as described in claim 1, characterized in that: A waterproof power switch is installed in the first chamber, and the waterproof power switch is located between the battery and the controller.

5. An automatic bottom valve with a float as described in claim 1, characterized in that: The waterproof cap has a handle at the end.

6. An automatic bottom valve with a float as described in claim 1, characterized in that: The bottom valve body has an external thread on the side of the outlet. The float is fixedly mounted on a bracket. The end of the bracket has a mounting ring with an internal thread. The bracket is threadedly fixedly mounted on the bottom valve body.

7. An automatic bottom-fill valve with a float according to claim 1, characterized in that: The pontoon is equipped with an air inlet and a drain outlet at both ends, and both the air inlet and the drain outlet are fitted with plugs.

8. An automatic bottom-mounting valve with a float according to any one of claims 1-7, characterized in that: The check valve structure includes a first fixed plate, a second fixed plate, a connecting column, a guide rod, a spring, and a baffle. The first fixed plate and the second fixed plate are connected by the connecting column to form an integral structure. The first fixed plate and the second fixed plate are fixedly installed in the second chamber of the bottom valve body. The guide rod is slidably installed on the first and second fixed plates. The baffle is located between the first and second fixed plates and is fixedly installed on the guide rod. The spring is located between the baffle and the second fixed plate and is fitted on the guide rod. The right end of the guide rod passes through the second fixed plate and is connected to a limiting part. The first fixed plate is provided with a water flow hole. When there is no water flow in the bottom valve body, the baffle blocks the water flow hole by pressing against the first fixed plate under the action of the spring.

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