Water guide for vacuum tank

Abstract

The utility model discloses a kind of water diversion devices for vacuum tank, it is related to vacuum tank water diversion technical field, including tank body, support foot and tank cover, the number of support foot is four, and evenly fixed connection in the tank body lower end one week, the tank cover is set on the tank body upper end, and fixed connection with the tank body by bolt. The utility model is through the cooperation of tank body, support foot, tank cover, water diversion pipe, water outlet pipe, water pump, exhaust valve mouth, water injection valve mouth, filtering device, impurity filtering assembly, transmission assembly, cleaning mechanism, support plate, movable hole, pressure applying assembly, limit rod, carrier plate, stainless steel push spring, mounting clamping groove, light brush piece, rubber clasp, brush block, pipe orifice and limiting plate, realize the impurity of water source introduction filtration, automatic cleaning filter hole to avoid large-area blockage, reduce the effect of equipment wear and tear and reduce downtime maintenance frequency.

Description

Technical Field

[0001] This utility model relates to the field of water priming technology for vacuum tanks, specifically a water priming device for vacuum tanks. Background Technology

[0002] Vacuum tanks, as storage and transportation equipment with a negative pressure environment, are widely used in water intake operations in various fields such as industrial production, water treatment, and food processing. Their core principle is to use the pressure difference between the inside and outside of the tank to draw external water into the tank through the water intake pipe. Combined with the water outlet pipe and water pump, the stable output of water is achieved, which meets the needs of water storage, buffering and quantitative transportation in the production process. The vacuum tank water intake system plays an irreplaceable role. However, in the use of existing vacuum tanks for water priming, the water sources introduced by the vacuum tanks, such as groundwater and industrial circulating water, often contain large particles of silt, suspended particles, fibrous pollutants and other impurities. These impurities can cause excessive wear and blockage of the equipment, and the impurities will gradually adhere to the surface of the filter pores and accumulate, leading to filter pore blockage. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this utility model is to provide a water priming device for a vacuum tank. This device has the advantages of filtering impurities from the introduced water source, automatically cleaning the filter holes to avoid large-area clogging, reducing equipment wear, and reducing downtime maintenance frequency. To a certain extent, it improves or solves the problem that the water source introduced by the vacuum tank, such as groundwater or industrial circulating water, often contains large particles of silt, suspended particles, fibrous pollutants, and other impurities. These impurities can cause excessive wear and clogging of the equipment, and they can also gradually adhere to and accumulate on the surface of the filter holes, leading to filter blockage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a water-priming device for a vacuum tank, comprising a tank body, supporting legs, and a tank cover. The supporting legs are four in number and are evenly and fixedly connected to the lower end of the tank body. The tank cover is located on the upper end of the tank body and is fixedly connected to the tank body by bolts. A water-priming pipe is provided on the left side inside the tank body, with its lower end extending out of the tank body and fixedly connected to and communicating with the tank body. A water outlet pipe is fixedly connected to the right side of the lower end of the tank body, communicating with the tank body. A water pump is fixedly connected to the right end of the water outlet pipe. An exhaust valve is fixedly connected to the upper end of the tank cover, communicating with the tank body. A water injection valve is fixedly connected to the right side of the upper end of the tank cover, communicating with the tank body. A pipe opening is fixedly connected to the top of the water-priming pipe, and a filter device is provided inside the pipe opening. The filtration device includes a filter assembly, a transmission assembly, and a cleaning mechanism. The filter assembly is located inside the upper part of the pipe opening. The transmission assembly is located inside the upper part of the pipe opening and extends from the tank cover. The cleaning mechanism is located at the lower end of the transmission assembly and is situated below the filter assembly.

[0005] As a preferred embodiment of this utility model, the impurity filtering assembly includes a filter plate, filter holes, and a support ring. The filter plate is disposed inside the upper end of the pipe opening and extends out of the pipe opening from the upper side, and is movably connected to the pipe opening. The number of filter holes is several and is uniformly fixedly connected to the upper surface of the filter plate. The support ring is sleeved on the upper surface of the filter plate and is fixedly connected to the filter plate, and is fixedly connected to the upper surface of the pipe opening by bolts.

[0006] In a preferred embodiment of this utility model, the transmission assembly includes a rotating rod, a fixing ring, and a motor. The rotating rod is disposed inside the upper end of the pipe opening, and its upper end passes through the filter plate and is rotatably connected to the filter plate. The upper end of the rotating rod passes through the can lid and is rotatably connected to the can lid. The motor is fixedly connected to the top end of the rotating rod and is fixedly connected to the upper surface of the can lid. The fixing ring is sleeved on the lower end surface of the rotating rod and is fixedly connected to the rotating rod.

[0007] In a preferred embodiment of this utility model, the cleaning mechanism includes a support plate, movable holes, a pressure-applying component, and a light brush. The left end of the support plate is sleeved on the surface of the fixed ring and is fixedly connected to the fixed ring. The support plate is located on the right side below the filter plate. There are four movable holes, which are evenly distributed on the upper surface of the support plate. The pressure-applying component is disposed on the upper side of the support plate, and the light brush is disposed on the upper side of the pressure-applying component.

[0008] In a preferred embodiment of this invention, the pressure-applying assembly includes limiting rods, a carrier plate, stainless steel push springs, and mounting slots. Four limiting rods are respectively disposed within the four movable holes. Both ends of each limiting rod extend out of the movable holes and are slidably connected to them. The carrier plate is fixedly connected to the tops of the four limiting rods. Four stainless steel push springs are respectively sleeved on the upper surfaces of the four limiting rods, with their upper and lower ends fixedly connected to the lower surface of the carrier plate and the upper surface of the support plate, respectively. The mounting slot is formed on the upper surface of the carrier plate and extends through the right end of the carrier plate. The light brush is disposed on the upper surface of the carrier plate and located below the filter plate.

[0009] As a preferred embodiment of this utility model, the light brush component includes a rubber clip and a brush block. The rubber clip is disposed inside the mounting groove and extends out of the mounting groove on its upper side, engaging with the mounting groove. The brush block is fixedly connected to the upper side of the rubber clip and its upper side contacts the lower surface of the filter plate.

[0010] As a preferred embodiment of this utility model, the lower ends of the four limiting rods are all fixedly connected to limiting plates.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the coordinated use of a tank body, supporting feet, tank cover, water inlet pipe, water outlet pipe, water pump, exhaust valve port, water inlet valve port, filtration device, impurity filter assembly, filter plate, filter holes, supporting ring, transmission assembly, rotating rod, fixing ring, motor, cleaning mechanism, supporting plate, movable hole, pressure application assembly, limiting rod, carrier plate, stainless steel push spring, mounting slot, light brush, rubber clip, brush block, pipe port, and limiting plate, improves or solves to a certain extent the problem of existing vacuum tank water priming in use. The water source introduced by the vacuum tank, such as groundwater or industrial circulating water, often contains large particles of silt, suspended particles, fibrous pollutants, and other impurities. These impurities can cause excessive wear and blockage of the equipment, and impurities can gradually adhere to and accumulate on the surface of the filter holes, leading to filter hole blockage.

[0012] 2. This utility model has the advantages of efficiently intercepting impurities in the water source introduced into the vacuum tank by setting up a filter assembly, and the filter plate can be disassembled and replaced later, which reduces the difficulty of maintenance.

[0013] 3. This utility model, by combining a transmission component and a cleaning mechanism, not only enables automated and continuous cleaning of the lower surface of the filter plate via motor drive, avoiding the tediousness of manual cleaning and downtime losses, but also utilizes the elastic pressure of a stainless steel push spring to ensure that the brush block always fits tightly against the filter plate, adapting to the slight deformation of the filter plate surface and ensuring thorough cleaning without dead angles. At the same time, the lightweight brush is installed with a snap-fit ​​design, facilitating quick disassembly and replacement, while the limiting plate prevents the limiting rod from slipping off. Overall, this improves the stability, adaptability, and ease of maintenance of the cleaning mechanism, effectively ensuring long-term unobstructed flow of the filter holes. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the vacuum container of this utility model; Figure 2 This is a cross-sectional three-dimensional structural diagram of a vacuum tank; Figure 3 This is an exploded three-dimensional structural diagram of the filtration device; Figure 4 A schematic diagram of the three-dimensional structure of the cleaning mechanism in the event of an explosion.

[0015] In the diagram: 1. Tank body; 11. Support leg; 12. Tank cover; 13. Water inlet pipe; 14. Water outlet pipe; 15. Water pump; 16. Exhaust valve port; 17. Water inlet valve port; 2. Filtration device; 3. Filter assembly; 31. Filter plate; 32. Filter holes; 33. Support ring; 4. Transmission assembly; 41. Rotating rod; 42. Fixing ring; 43. Motor; 5. Cleaning mechanism; 51. Support plate; 52. Movable hole; 53. Pressure application assembly; 531. Limiting rod; 532. Carrier plate; 533. Stainless steel push spring; 534. Mounting slot; 54. Light brush component; 541. Rubber retaining strip; 542. Brush block; 6. Pipe port; 7. Limiting plate. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0020] Example 1 Reference Figure 1-4This is the first embodiment of the present invention, which provides a water-priming device for a vacuum tank, including a tank body 1, support legs 11, and a tank cover 12. There are four support legs 11, which are evenly and fixedly connected to the lower end of the tank body 1. The tank cover 12 is set at the upper end of the tank body 1 and is fixedly connected to the tank body 1 by bolts. A water-priming pipe 13 is set on the left side inside the tank body 1. The lower end of the water-priming pipe 13 extends out of the tank body 1 and is fixedly connected to and communicates with the tank body 1. A water outlet pipe 14 is fixedly connected to the lower right side of the tank body 1 and communicates with the tank body 1. A water pump 15 is fixedly connected to the right end of the water outlet pipe 14. An exhaust valve port 16 is fixedly connected to the upper end of the tank cover 12 and communicates with the tank body 1. A water injection valve port 17 is fixedly connected to the upper right side of the tank cover 12 and communicates with the tank body 1. A pipe port 6 is fixedly connected to the top end of the water-priming pipe 13, and a filter device 2 is set inside the pipe port 6. The filtration device 2 includes a filter assembly 3, a transmission assembly 4, and a cleaning mechanism 5. The filter assembly 3 is located inside the upper part of the pipe opening 6. The transmission assembly 4 is located inside the upper part of the pipe opening 6, and its upper end extends out of the tank cover 12. The cleaning mechanism 5 is located at the lower end of the transmission assembly 4 and is located below the filter assembly 3.

[0021] Specifically, the water priming device for the vacuum tank has the advantages of filtering the introduced water source and automatically cleaning impurities from the filter holes 32 to avoid large-area clogging of the filter holes 32, while reducing the frequency of downtime maintenance and ensuring stable water priming efficiency.

[0022] Furthermore, the initial water filling of the tank 1 is completed by the cooperation of the water filling valve port 17 and the air vent port 16. The operation of the water pump 15 creates a negative pressure in the tank 1 to achieve water intake. The filter component 3 in the filter device 2 intercepts impurities. The transmission component 4 drives the cleaning mechanism 5 to automatically clean the filter component 3. All components work together to achieve filtration and self-cleaning functions.

[0023] Example 2 In the second embodiment of this utility model, the impurity filtering assembly 3 includes a filter plate 31, filter holes 32, and a support ring 33. The filter plate 31 is disposed inside the upper end of the pipe opening 6 and extends out of the pipe opening 6 from the upper side and is movably connected to the pipe opening 6. The number of filter holes 32 is several and they are uniformly and fixedly connected to the upper surface of the filter plate 31. The support ring 33 is sleeved on the upper surface of the filter plate 31 and is fixedly connected to the filter plate 31, and is fixedly connected to the upper surface of the pipe opening 6 by bolts.

[0024] Specifically, by setting up the filter assembly 3, it can efficiently intercept impurities in the water source introduced into the vacuum tank, and at the same time, it can be disassembled and repaired later, and the filter plate 31 can be disassembled and replaced, reducing the difficulty of maintenance.

[0025] Furthermore, during the water diversion process, when the external water source flows to the pipe opening 6 through the water diversion pipe 13, it will preferentially contact the filter plate 31. The filter plate 31 has several filter holes 32 evenly distributed on it, which can accurately intercept impurities such as mud, suspended particles, and fibrous pollutants in the water source, allowing only clean water to enter the tank 1 through the filter holes 32. When the filter plate 31 needs to be repaired or replaced after long-term use, the staff can unscrew the bolts connecting the support ring 33 to the pipe opening 6 and directly remove the filter plate 31 from the pipe opening 6.

[0026] Example 3 In the third embodiment of this utility model, the transmission assembly 4 includes a rotating rod 41, a fixing ring 42, and a motor 43. The rotating rod 41 is disposed inside the upper end of the pipe opening 6, and its upper end passes through the filter plate 31 and is rotatably connected to the filter plate 31. The upper end of the rotating rod 41 passes through the can cover 12 and is rotatably connected to the can cover 12. The motor 43 is fixedly connected to the top end of the rotating rod 41 and is fixedly connected to the upper surface of the can cover 12. The fixing ring 42 is sleeved on the lower end surface of the rotating rod 41 and is fixedly connected to the rotating rod 41. The cleaning mechanism 5 includes a support plate 51, movable holes 52, a pressure application component 53, and a light brush component 54. The left end of the support plate 51 is sleeved on the surface of the fixing ring 42 and is fixedly connected to the fixing ring 42. The support plate 51 is located on the right side below the filter plate 31. There are four movable holes 52, which are evenly distributed on the upper surface of the support plate 51. The pressure application component 53 is located on the upper side of the support plate 51, and the light brush component 54 is located on the upper side of the pressure application component 53. The pressure application component 53 includes a limiting rod 531, a carrier plate 532, a stainless steel push spring 533, and a mounting slot 534. There are four limiting rods 531, which are respectively set inside four movable holes 52. The upper and lower ends of the limiting rods 531 extend out of the movable holes 52 and are slidably connected to the movable holes 52. The carrier plate 532 is fixedly connected to the top of the four limiting rods 531. There are four stainless steel push springs 533, which are respectively sleeved on the upper surface of the four limiting rods 531, and the upper and lower ends are fixedly connected to the lower surface of the carrier plate 532 and the upper surface of the support plate 51, respectively. The mounting slot 534 is opened on the upper surface of the carrier plate 532 and penetrates through the right end of the carrier plate 532. The light brush 54 is set on the upper side of the carrier plate 532 and located on the lower side of the filter plate 31. The light brush component 54 includes a rubber clip 541 and a brush block 542. The rubber clip 541 is disposed inside the mounting groove 534 and extends out of the mounting groove 534 on its upper side and engages with the mounting groove 534. The brush block 542 is fixedly connected to the upper side of the rubber clip 541 and its upper side contacts the lower surface of the filter plate 31. The lower ends of the four limit rods 531 are all fixedly connected to limit plates 7.

[0027] Specifically, by combining the transmission component 4 with the cleaning mechanism 5, not only can the automatic and continuous cleaning of the lower surface of the filter plate 31 be achieved through the drive of the motor 43, avoiding the tediousness of manual cleaning and downtime losses, but also the elastic pressure of the stainless steel push spring 533 ensures that the brush block 542 is always in close contact with the filter plate 31, adapting to the slight deformation of the filter plate 31 surface and ensuring that there are no dead angles in cleaning. At the same time, the light brush 54 adopts a snap-fit ​​installation, which is convenient for quick disassembly and replacement, and the limiting plate 7 can prevent the limiting rod 531 from slipping off. Overall, the stability, adaptability and maintenance convenience of the cleaning mechanism are improved, effectively ensuring the long-term unobstructed flow of the filter holes 32.

[0028] Furthermore, after starting the motor 43, the motor 43 drives the rotating rod 41 to rotate. The rotating rod 41 synchronously drives the support plate 51 to rotate around the axis of the rotating rod 41 through the fixed ring 42. When the support plate 51 rotates, the stainless steel push spring 533 in the pressure component 53 on it generates an upward continuous elastic force on the carrier plate 532, so that the carrier plate 532 drives the brush block 542 of the light brush 54 to always be in close contact with the lower surface of the filter plate 31. With the circumferential movement of the support plate 51, the lower surface of the filter plate 31 and the filter holes 32 are thoroughly wiped to remove the attached impurities. The sliding cooperation between the limit rod 531 and the movable hole 52 ensures that the carrier plate 532 rises and falls stably and avoids deviation. When the brush block 542 is worn and needs to be replaced, the rubber clip 541 can be directly pulled out from the right end of the mounting slot 534 to replace the new light brush 54. The operation is convenient. The limit plate 7 can limit the maximum rising height of the limit rod 531 and prevent the limit rod 531 from coming out of the movable hole 52, ensuring the safe operation of the mechanism.

[0029] Working principle: During use, in the water filling process, open the vent valve 16 and the water filling valve 17, and then inject clean water into the tank 1 through the water filling valve 17. During the injection process, the air originally in the tank 1 will be gradually discharged through the vent valve 16 until the tank 1 is full of clean water or reaches the preset water level. At this time, close the vent valve 16 and the water filling valve 17 to complete the initial water filling process of the tank 1. Then start the water pump 15 connected to the right end of the outlet pipe 14. After the water pump 15 starts running, it will have a suction effect on the clean water in the tank 1, making the tank... A negative pressure environment is created inside tank 1. Under the influence of the pressure difference between the inside and outside of tank 1, external water flows into tank 1 along the water inlet pipe 13. During this process, the filter device 2 inside the pipe opening 6 at the top of the water inlet pipe 13 begins to function. The external water first comes into contact with the filter plate 31 in the impurity filtering assembly 3. The numerous filter holes 32 evenly distributed on the filter plate 31 intercept impurities such as silt, suspended particles, and fibrous pollutants in the water source, allowing only the filtered clean water to enter the tank 1 through the filter holes 32, effectively preventing impurities from entering with the water. After the substance enters the tank 1, it causes blockage of the outlet pipe 14 and water pump 15 or wear of the equipment. To prevent large-scale blockage of the filter holes 32 due to the accumulation of impurities after long-term use, the motor 43 in the transmission assembly 4 can be started. When the motor 43 runs, it drives the rotating rod 41 to rotate. The fixing ring 42 at the lower end of the rotating rod 41 rotates synchronously, which in turn drives the support plate 51, which is fixedly connected to the fixing ring 42, to make a circular motion around the axis of the rotating rod 41. The pressure component 53 on the upper side of the support plate 51 generates a continuous upward elastic force on the carrier plate 532 through the stainless steel push spring 533. This ensures that the brush block 542 in the light brush component 54 on the upper side of the carrier plate 532 is always in close contact with the lower surface of the filter plate 31. As the support plate 51 rotates, the brush block 542 will perform a circumferential light brushing on the lower surface of the filter plate 31, removing impurities attached to the bottom of the filter holes 32, preventing large-area blockage inside the filter holes 32, ensuring that the filter holes 32 are always unobstructed, ensuring stable water diversion efficiency, reducing the frequency of downtime maintenance, and when the vent is opened to stop water pumping, the impurities brushed off will be discharged with the water flow after the pressure in the tank 1 returns to normal.

[0030] In summary, by using the tank body 1, support feet 11, tank cover 12, water inlet pipe 13, water outlet pipe 14, water pump 15, vent valve port 16, water inlet valve port 17, filter device 2, impurity filter assembly 3, filter plate 31, filter holes 32, support ring 33, transmission assembly 4, rotating rod 41, fixing ring 42, motor 43, cleaning mechanism 5, support plate 51, movable hole 52, pressure application assembly 53, limit rod 531, carrier plate 532, stainless steel push spring 533, mounting slot 534, light brush 54, rubber clip 541, brush block 542, pipe port 6, and limit plate 7 in combination, the system effectively filters impurities from the introduced water source, automatically cleans the filter holes to avoid large-area clogging, reduces equipment wear, and minimizes downtime maintenance frequency.

[0031] The water inlet pipe 13, water outlet pipe 14, water pump 15, exhaust valve port 16, water inlet valve port 17, and motor 43 used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0032] It should be noted that the water inlet pipe 13, water outlet pipe 14, water pump 15, air vent 16, water inlet valve 17, and motor 43 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters, are all common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0033] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0034] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0035] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A water-priming device for a vacuum tank, comprising a tank body (1), support legs (11), and a tank cover (12), wherein the number of support legs (11) is four, and they are evenly and fixedly connected to the lower end of the tank body (1) around the perimeter; the tank cover (12) is disposed on the upper end of the tank body (1) and fixedly connected to the tank body (1) by bolts, characterized in that: A water inlet pipe (13) is provided on the left side inside the tank (1). The lower end of the water inlet pipe (13) extends out of the tank (1) and is fixedly connected to and communicates with the tank (1). A water outlet pipe (14) is fixedly connected to the lower right side of the tank (1). The water outlet pipe (14) communicates with the tank (1). A water pump (15) is fixedly connected to the right end of the water outlet pipe (14). An exhaust valve port (16) is fixedly connected to the upper end of the tank cover (12). The exhaust valve port (16) communicates with the tank (1). A water injection valve port (17) is fixedly connected to the upper right side of the tank cover (12). The water injection valve port (17) communicates with the tank (1). A pipe port (6) is fixedly connected to the top of the water inlet pipe (13). A filter device (2) is provided inside the pipe port (6). The filtration device (2) includes a filter assembly (3), a transmission assembly (4), and a cleaning mechanism (5). The filter assembly (3) is located inside the upper part of the pipe opening (6). The transmission assembly (4) is located inside the upper part of the pipe opening (6) and extends out of the can cover (12). The cleaning mechanism (5) is located at the lower part of the transmission assembly (4) and is located below the filter assembly (3).

2. The water priming device for a vacuum tank according to claim 1, characterized in that: The filter assembly (3) includes a filter plate (31), filter holes (32) and a support ring (33). The filter plate (31) is disposed inside the upper end of the pipe opening (6) and extends out of the pipe opening (6) and is movably connected to the pipe opening (6). The number of filter holes (32) is several and is uniformly fixedly connected to the upper surface of the filter plate (31). The support ring (33) is sleeved on the upper surface of the filter plate (31) and is fixedly connected to the filter plate (31) and is fixedly connected to the upper surface of the pipe opening (6) by bolts.

3. A water priming device for a vacuum tank according to claim 2, characterized in that: The transmission assembly (4) includes a rotating rod (41), a fixing ring (42), and a motor (43). The rotating rod (41) is located inside the upper end of the pipe opening (6), and its upper end passes through the filter plate (31) and is rotatably connected to the filter plate (31). The upper end of the rotating rod (41) passes through the can cover (12) and is rotatably connected to the can cover (12). The motor (43) is fixedly connected to the top of the rotating rod (41) and is fixedly connected to the upper surface of the can cover (12). The fixing ring (42) is sleeved on the lower surface of the rotating rod (41) and is fixedly connected to the rotating rod (41).

4. A water priming device for a vacuum tank according to claim 3, characterized in that: The cleaning mechanism (5) includes a support plate (51), movable holes (52), a pressure application component (53), and a light brush (54). The left end of the support plate (51) is sleeved on the surface of the fixing ring (42) and fixedly connected to the fixing ring (42). The support plate (51) is located on the right side below the filter plate (31). There are four movable holes (52), which are evenly opened on the upper surface of the support plate (51). The pressure application component (53) is located on the upper side of the support plate (51), and the light brush (54) is located on the upper side of the pressure application component (53).

5. A water priming device for a vacuum tank according to claim 4, characterized in that: The pressure application assembly (53) includes a limiting rod (531), a carrier plate (532), a stainless steel push spring (533), and a mounting slot (534). There are four limiting rods (531), each disposed inside one of the four movable holes (52). Both ends of the limiting rod (531) extend out of the movable holes (52) and are slidably connected to them. The carrier plate (532) is fixedly connected to the tops of the four limiting rods (531). The number of stainless steel push springs (533) is four, and they are respectively sleeved on the upper surface of the four limiting rods (531), and the upper and lower ends are respectively fixedly connected to the lower surface of the carrier plate (532) and the upper surface of the support plate (51). The mounting slot (534) is opened on the upper surface of the carrier plate (532) and passes through the right end of the carrier plate (532). The light brush (54) is set on the upper side of the carrier plate (532) and located on the lower side of the filter plate (31).

6. A water priming device for a vacuum tank according to claim 5, characterized in that: The light brush component (54) includes a rubber clip (541) and a brush block (542). The rubber clip (541) is disposed inside the mounting slot (534) and extends out of the mounting slot (534) on its upper side and engages with the mounting slot (534). The brush block (542) is fixedly connected to the upper side of the rubber clip (541) and its upper side contacts the lower surface of the filter plate (31).

7. A water priming device for a vacuum tank according to claim 5, characterized in that: The lower ends of the four limiting rods (531) are all fixedly connected to limiting plates (7).

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