Piston water tank

Abstract

The application provides a piston type water tank, belonging to the field of anti-sloshing water tanks, which comprises a tank body, a water delivery pipe communicated with the bottom of the tank body, a plurality of partitions arranged in the tank body and separating the tank body into a plurality of cavities, the partitions extending along the vertical direction of the ground, a plurality of through holes arranged on the partitions, the cavities being communicated through the through holes, the outer edge of a movable plate abutting against the inner edge of the radial section of the tank body, the movable plate simultaneously separating the plurality of cavities into a first cavity and a second cavity arranged in an upper and lower mode, the second cavity located in the center being communicated with the water delivery pipe, each second cavity being filled with water, the movable plate moving along the vertical direction of the ground relative to the tank body and changing the volume of the first cavity and the second cavity, the partitions with through holes being arranged in the tank body to separate the tank body into a plurality of cavities which are communicated with each other and independent of each other, the water delivery pipe being communicated with the water tank located in the center, the generated water flow vortex being limited in the middle part of the tank body, and the impact of the vortex flow of the vortex on the inner wall of the tank body being reduced through the partitions.

Description

Technical Field

[0001] This invention relates to the field of anti-sway water tank technology, and more particularly to a piston-type water tank. Background Technology

[0002] Marine water tanks are designed to store essential liquids for navigation and are widely used in surface ships, underwater vehicles, and other fields. However, the problem of liquid sloshing during ship maneuvers is unavoidable, posing a significant challenge to the ship's stability. Therefore, it is necessary to develop and innovate the existing structural forms of water tanks. Anti-sloshing water tanks consist of water tanks and anti-sloshing baffles installed inside. The crisscrossing internal baffles of the water tanks slow down the water flow velocity inside the tanks, reducing the sloshing caused by waves and minimizing the impact of water flow inside the tanks on the ship's stability during maneuvers.

[0003] However, anti-sway water tanks cannot fundamentally eliminate the swaying effect caused by water waves generated by the internal water flow. Chinese patent CN105115159B discloses a piston-type water tank, proposing another anti-swaying method. The tank is divided into two isolated spaces by a piston. After one space is filled with water, the volume of the water storage space is changed by altering the volume ratio of the two spaces. During this process, because the storage space is completely filled with water, the internal water flow does not generate waves on the surface. However, researchers found that the swaying of the water tank is not completely eliminated. This is because the water tank uses a water pipe for injection and discharge. During the injection and discharge process, vortices form inside the water flow around the pipe opening. When ships use water tanks for injection and discharge, the internal pressure and water flow speed are extremely high, causing the vortices to not only flow rapidly but also have a large range, spreading to the edges of the internal space and impacting the inner wall of the tank, causing swaying. Therefore, current piston-type water tanks still struggle to achieve a good anti-sloshing effect. Summary of the Invention

[0004] In view of this, the present invention proposes a piston-type water tank to solve the problem that the extremely high pressure and water flow speed inside the water tank cause vortices that not only flow rapidly but also have a large range and spread to the edge of the internal space of the water tank, thereby impacting the inner wall of the water tank and causing shaking.

[0005] The technical solution of this invention is implemented as follows: This invention provides a piston-type water tank, including a tank body with a water supply pipe connected to its bottom; several partitions disposed within the tank body and dividing the tank body into several cavities; a movable plate disposed within the tank body; wherein, each partition extends vertically along the ground at both ends, and several through holes are provided on the partitions, and each cavity is connected through the through holes; the outer edge of the movable plate abuts against the inner edge of the radial section of the tank body, and the movable plate simultaneously divides the several cavities into a first chamber and a second chamber arranged vertically, the second chamber located in the center being connected to the water supply pipe, each second chamber being filled with water, and the movable plate moving relative to the tank body along the vertical direction of the ground, thereby changing the volume of the first chamber and the second chamber.

[0006] Based on the above technical solutions, preferably, the movable plate includes several plate units, which are respectively arranged in each cavity and divide each cavity into a first chamber and a second chamber arranged vertically; wherein, the outer edge of the plate unit abuts against the inner edge of the radial section of the cavity, and the plate unit moves relative to the box in the vertical direction of the ground.

[0007] More preferably, it also includes a drive component, which has a drive end connected to the movable plate, and the drive component drives each plate unit to move synchronously.

[0008] More preferably, it also includes a sealing strip, the two ends of which extend vertically along the ground, and the sealing strip is set within the included angle of adjacent sides of the radial section of the cavity; the corners of the plate unit are rounded and abut against the sealing strip.

[0009] More preferably, the drive assembly includes a first linear drive mechanism, one end of which is disposed outside the housing and the other end of which is inserted into the housing in a vertical direction along the ground; a linkage plate, which is disposed on the end of the first linear drive mechanism inserted into the housing and moves in a vertical direction along the ground under the drive of the first linear drive mechanism; and a plurality of second linear drive mechanisms, one end of which is disposed on the linkage plate and the other end of which is connected to each plate unit in a vertical direction along the ground and drives each plate unit to move in a vertical direction along the ground.

[0010] In a further preferred embodiment, the bottom of the partition abuts against the bottom surface of the box, and a gap is left between the top of the partition and the top of the box. The linkage plate is set within the gap between the top of the partition and the top of the box and moves within the gap.

[0011] More preferably, the movable plate also includes a first slider, with both ends of the through hole extending vertically to both ends of the partition plate along the ground; the first slider is disposed in the through hole and moves along the extension direction of the through hole, the first slider is connected between two adjacent plate units, and each plate unit is connected to form a movable plate through the first slider and moves synchronously.

[0012] In a further preferred embodiment, the movable plate also includes a corrugated pipe, which is fitted inside the box and located between the movable plate and the bottom of the box. A gap is left between the outer wall of the corrugated pipe and the inner wall of the box. The corrugated pipe also surrounds each of the second chambers, and the corrugated pipe expands and contracts with the change in volume of the second chamber.

[0013] More preferably, the driving assembly includes a second slider and a third linear drive mechanism. A groove is provided on the outer wall of the housing, with both ends of the groove extending vertically along the ground. The second slider is disposed in the groove and moves along the extension direction of the groove. One end of the second slider is connected to one of the plate units, and the other end extends outward through the groove. One end of the third linear drive mechanism is disposed on the outer wall of the housing, and the other end of the third linear drive mechanism is connected to the free end of the second slider. The third linear drive mechanism drives the second slider to move along the groove.

[0014] More preferably, the length of the groove in the extension direction is not greater than the length of the through hole in the extension direction.

[0015] The piston-type water tank of the present invention has the following advantages over the prior art:

[0016] (1) Based on the piston-type water tank, the present invention sets up a partition with through holes in the tank body to divide the inside of the tank body into several interconnected but independent cavities, so that the water supply pipe is connected to the water tank located in the center, so that the generated water flow vortex is limited to the middle of the tank body, and the impact of the vortex flow on the inner wall of the tank body is reduced by the partitions, thus achieving a good anti-sway effect of the water tank.

[0017] (2) The present invention makes contact between the sealing strip and the rounded corner plate unit, so that the plate unit, the partition and the inner wall of the box can achieve effective movable sealing, thereby preventing the water in the second chamber from leaking into the first chamber and damaging the filling and draining efficiency of the piston water tank.

[0018] (3) The present invention realizes the piston-type injection and drainage function of the water tank through two driving methods of the movable plate, and ensures the independent sealing of the water storage space. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the piston-type water tank of the present invention;

[0021] Figure 2 This is a side sectional view of the piston-type water tank of the present invention;

[0022] Figure 3 This is a side sectional view of another state of the piston-type water tank of the present invention;

[0023] Figure 4 This is a top sectional view of the piston-type water tank of the present invention;

[0024] Figure 5 This is a side sectional view of another embodiment of the piston-type water tank of the present invention;

[0025] Figure 6 This is a side sectional view of another embodiment of the piston-type water tank of the present invention, showing another state.

[0026] In the diagram: 1. Box body; 11. Water pipe; 100. Cavity; 101. First chamber; 102. Second chamber; 103. Slide groove; 2. Partition plate; 201. Through hole; 3. Movable plate; 31. Plate unit; 32. First slider; 33. Bellows; 4. Drive assembly; 41. First linear drive mechanism; 42. Linkage plate; 43. Second linear drive mechanism; 44. Second slider; 45. Third linear drive mechanism; 5. Sealing strip. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figure 1 As shown, a piston-type water tank of the present invention includes a tank body 1, a partition 2, and a movable plate 3.

[0029] The bottom of the tank 1 is connected to a water supply pipe 11. The tank 1 is filled and drained through the water supply pipe 11. The tank 1 is usually installed vertically and is cylindrical or square in shape.

[0030] Several partitions 2 are installed inside the box body 1, dividing the interior of the box body 1 into several cavities 100. Each partition 2 extends vertically along the ground at both ends, and several through holes 201 are arranged on the partition 2. Each cavity 100 is connected through the through holes 201, so that water can flow between each cavity 100.

[0031] A movable plate 3 is installed inside the housing 1. The outer edge of the movable plate 3 abuts against the inner edge of the radial section of the housing 1. The movable plate 3 divides several cavities 100 into a first chamber 101 and a second chamber 102 arranged vertically. The second chamber 102 located in the center is connected to the water supply pipe 11. Each second chamber 102 is filled with water. The movable plate 3 is similar to a piston. When the movable plate 3 moves vertically relative to the housing 1 along the ground, it will simultaneously change the volume of the first chamber 101 and the second chamber 102. When the volume of the second chamber 102 decreases, the water stored in it will be discharged through the water supply pipe 11. When the volume of the second chamber 102 increases, the water stored in it will be replenished through the water supply pipe 11. During this process, the second chamber 102 is filled with water and its volume changes constantly with the change in water volume. There is no gas space in the second chamber 102, so there is no liquid surface and no water waves are generated on the liquid surface. Therefore, the problem of water waves impacting the inner wall of the tank 1 and causing the water tank to shake will not occur. Meanwhile, several partitions 2 divide the interior of the box 1 into several interconnected cavities 100. When water is injected into the box 1 through the water supply pipe 11 or discharged from the box 1, even if a vortex is generated, the vortex will be located in the second cavity 102 connected by the water supply pipe 11. More precisely, the vortex is confined to the second cavity 102 located in the center of the box 1. The vortex flow cannot impact the inner wall of the box 1 but will only impact the partitions 2. At the same time, the impact force of the water flow outside the vortex on the partitions 2 is also weakened by the partitions 2. Therefore, even if some water flows into the adjacent cavity 100 through the through hole 201, the impact of the water flow on the inner wall of the box 1 will hardly cause the box 1 to shake.

[0032] exist Figure 2 In one preferred embodiment, the housing 1 has several independent cavities 100, and the movable plate 3 includes plate units 31.

[0033] Several plate units 31 are respectively disposed in each cavity 100, dividing each cavity 100 into a first chamber 101 and a second chamber 102 arranged vertically. The outer edge of the plate unit 31 abuts against the inner edge of the radial section of the cavity 100. Specifically, the outer edge of the plate unit 31 is filled with a sealing ring, so that the plate unit 31 forms a movable seal between itself and the inner wall of the housing 1 and the surface of the partition 2, preventing water in the second chamber 102 from leaking into the first chamber 101. The plate unit 31 moves relative to the housing 1 in the vertical direction along the ground, realizing the piston function.

[0034] exist Figure 2 In a preferred embodiment, a driving component 4 is further included to drive each board unit 31 to move.

[0035] The drive assembly 4 has a drive end connected to the movable plate 3. The drive assembly 4 drives each plate unit 31 to move synchronously, thus realizing the piston function of the movable plate 3.

[0036] exist Figure 4 In a preferred embodiment, a sealing strip 5 is also included to improve the sealing effect of the movable plate 3.

[0037] The sealing strip 5 extends vertically along both ends of the ground and is positioned within the included angle between adjacent sides of the radial section of the cavity 100. The sealing strip 5 can be made of metal or plastic.

[0038] The corners of the plate unit 31 are rounded and abut against the sealing strip 5, avoiding sharp corners that would prevent effective sealing. The rounded corners also allow the plate unit 31 to fit tightly against the sealing strip 5 and the inner wall of the cavity 100 for a seal. Sealing rings are also provided on the rounded corners of the plate unit 31 to ensure a good seal.

[0039] exist Figure 3 In a preferred embodiment, the drive assembly 4 includes a first linear drive mechanism 41, a linkage plate 42, and a second linear drive mechanism 43.

[0040] The first linear drive mechanism 41 has one end located outside the housing 1 and the other end inserted into the housing 1 along the vertical direction of the ground.

[0041] The linkage plate 42 is located on the end of the first linear drive mechanism 41 inserted into the housing 1, and moves vertically along the ground under the drive of the first linear drive mechanism 41.

[0042] Several second linear drive mechanisms 43 are mounted at one end on the linkage plate 42 and at the other end connected to each plate unit 31 in a vertical direction along the ground, driving each plate unit 31 to move in a vertical direction along the ground. Both the first linear drive mechanism 41 and the second linear drive mechanism 43 can be telescopic pneumatic rods or hydraulic telescopic cylinders, or a rotary motor combined with a screw-slider mechanism can be used to achieve precise control of the moving distance of the plate unit 31.

[0043] When adopting the above technical solution, the first linear drive mechanism 41 drives the linkage plate 42 to move over a large range or a long distance, and then the second linear drive mechanism 43 drives the plate unit 31 to move precisely over a small range or a short distance. In addition, this embodiment can also control each plate unit 31 to move independently, so as to control the change of the volume of a single second chamber 102, thereby changing the center of gravity of the water tank.

[0044] exist Figure 3In a preferred embodiment, the bottom of the partition 2 abuts against the bottom surface of the housing 1, and a gap is left between the top of the partition 2 and the top of the housing 1. The linkage plate 42 is disposed within the gap between the top of the partition 2 and the top of the housing 1 and moves within the gap, so that the linkage plate 42 has a sufficient range of motion. In addition, an opening is provided at the top of the housing 1 so that the driving end of the first linear drive mechanism 41 can be inserted into the housing 1 through the opening.

[0045] exist Figure 5 In a preferred embodiment, in order to enable the movable plate 3 to move synchronously among the plate units 31 that make up the movable plate 3, the movable plate 3 further includes a first slider 32.

[0046] Among them, the two ends of the through hole 201 extend vertically to the two ends of the partition 2 along the ground. At this time, the through holes 201 are not arranged in a matrix on the partition 2, but only a row of through holes 201 is opened, and each through hole 201 is long and narrow.

[0047] The first slider 32 is disposed within the through hole 201 and moves along the extension direction of the through hole 201. The first slider 32 connects two adjacent plate units 31, and each plate unit 31 is connected by the first slider 32 to form a movable plate 3 and move synchronously. A sealing ring is also provided on the side of the first slider 32 that contacts the through hole 201.

[0048] exist Figure 6 In one preferred embodiment, the movable plate 3 further includes a corrugated pipe 33.

[0049] The corrugated pipe 33 is fitted inside the housing 1 and located between the movable plate 3 and the bottom of the housing 1. A gap is left between the outer wall of the corrugated pipe 33 and the inner wall of the housing 1. The corrugated pipe 33 simultaneously surrounds each of the second chambers 102, and its expansion and contraction deforms according to the volume changes of the second chamber 102. By surrounding all the second chambers 102 with the corrugated pipe 33, the movable plate 3, and the bottom of the housing 1 form a sealed space for water storage, thus preventing water leakage from the second chambers 102.

[0050] exist Figure 6 In a preferred embodiment, in order to achieve synchronous movement of each plate unit 31, the drive assembly 4 includes a second slider 44 and a third linear drive mechanism 45.

[0051] The outer wall of the housing 1 is provided with a sliding groove 103, which extends vertically along the ground at both ends. Since the housing 1 is fitted with a corrugated pipe 33, the water in the second chamber 102 will not leak out of the corrugated pipe 33 and flow out of the housing 1 through the sliding groove 103.

[0052] The second slider 44 is disposed in the slide groove 103 and moves along the extension direction of the slide groove 103. One end of the second slider 44 is connected to one of the plate units 31 and the other end extends outward from the box 1 through the slide groove 103.

[0053] One end of the third linear drive mechanism 45 is mounted on the outer wall of the housing 1, and the other end is connected to the free end of the second slider 44. The third linear drive mechanism 45 drives the second slider 44 to move along the slide groove 103. The third linear drive mechanism 45 can be a telescopic pneumatic rod or a hydraulic telescopic cylinder, or it can be a rotary motor combined with a screw slider mechanism to achieve precise control of the moving distance of the plate unit 31.

[0054] When the above technical solution is adopted, the third linear drive mechanism 45 drives the second slider 44 to move along the slide groove 103, and the second slider 44 drives the plate unit 31 connected to it to move. Each plate unit 31 is connected into a whole through the first slider 32 to realize the synchronous movement of the movable plate 3.

[0055] exist Figure 6 In a preferred embodiment, the length of the groove 103 extending in the direction of extension is not greater than the length of the through hole 201 extending in the direction of extension, so that the volume of the second chamber 102 can be expanded and compressed as much as possible.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A piston-type water tank, characterized in that, include: The bottom of the box (1) is connected to a water supply pipe (11). Several partitions (2) are provided inside the box (1) and divide the inside of the box (1) into several cavities (100); An active panel (3) is installed inside the housing (1); Among them, each of the partitions (2) extends vertically along the ground at both ends, and a plurality of through holes (201) are provided on the partition (2). Each of the cavities (100) is connected through the through holes (201). The bottom of the partition (2) abuts against the bottom surface of the box (1), and the two ends of the through holes (201) extend vertically along the ground to both ends of the partition (2). The outer edge of the movable plate (3) abuts against the inner edge of the radial section of the box (1). The movable plate (3) divides several cavities (100) into a first chamber (101) and a second chamber (102) arranged vertically. The second chamber (102) located in the center is connected to the water supply pipe (11). Each second chamber (102) is filled with water. The movable plate (3) moves relative to the box (1) in the vertical direction of the ground and changes the volume of the first chamber (101) and the second chamber (102). The movable plate (3) includes a plate unit (31), a first slider (32), and a bellows (33). Several of the plate units (31) are respectively disposed in each cavity (100); The first slider (32) is disposed in the through hole (201) and moves along the extension direction of the through hole (201). The first slider (32) is connected between two adjacent plate units (31). Each plate unit (31) is connected to form a movable plate (3) through the first slider (32) and moves synchronously. The corrugated pipe (33) is fitted inside the box (1) and located between the movable plate (3) and the bottom of the box (1). There is a gap between the outer wall of the corrugated pipe (33) and the inner wall of the box (1). The corrugated pipe (33) simultaneously surrounds each of the second chambers (102). The corrugated pipe (33) expands and contracts with the volume change of the second chamber (102).

2. A piston-type water tank according to claim 1, characterized in that: It also includes a drive component (4), which has a drive end connected to the movable plate (3), and the drive component (4) drives each plate unit (31) to move synchronously.

3. A piston-type water tank according to claim 1, characterized in that: It also includes a sealing strip (5), the two ends of which extend vertically along the ground, and the sealing strip (5) is disposed within the included angle of adjacent sides of the radial section of the cavity (100); The corners of the plate unit (31) are rounded and abut against the sealing strip (5).

4. A piston-type water tank according to claim 2, characterized in that: The drive assembly (4) includes a second slider (44) and a third linear drive mechanism (45). The outer wall of the box (1) is provided with a sliding groove (103), and the two ends of the sliding groove (103) extend along the vertical direction of the ground. The second slider (44) is disposed in the slide groove (103) and moves along the extension direction of the slide groove (103). One end of the second slider (44) is connected to one of the plate units (31) and the other end extends outward from the box (1) through the slide groove (103). One end of the third linear drive mechanism (45) is disposed on the outer wall of the housing (1), and the other end of the third linear drive mechanism (45) is connected to the free end of the second slider (44). The third linear drive mechanism (45) drives the second slider (44) to move along the slide groove (103).

5. A piston-type water tank according to claim 4, characterized in that: The length of the groove (103) extending in the direction of extension is not greater than the length of the through hole (201) extending in the direction of extension.

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