Piston type water tank

Abstract

The invention provides a piston type water tank, and belongs to the field of anti-shaking water tanks. The partition plates are arranged in the box body and divide the interior of the box body into a plurality of cavities; the two ends of each partition plate extend in the vertical direction of the ground, a plurality of through holes are formed in the partition plates, and the cavities are communicated through the through holes. The outer edge of the movable plate abuts against the inner edge of the radial section of the box body, the movable plate divides the multiple cavities into first cavities and second cavities which are arranged up and down at the same time, the second cavity located in the center is communicated with the water conveying pipe, the second cavities are filled with water, and the movable plate moves relative to the box body in the vertical direction of the ground. The volumes of the first chamber and the second chamber are changed; partition plates with through holes are arranged in the box body to divide the interior of the box body into a plurality of mutually communicated and mutually independent cavities, the water conveying pipe is communicated with the water tank located in the center, generated water flow vortexes are limited in the middle of the box body, and impact of the vortexes on the inner wall of the box body is relieved through the partition plates.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-sway water tanks, and in particular to a piston-type water tank. Background Art

[0002] The design purpose of a ship water tank is to store the necessary liquid materials for ship navigation, and it has been widely used in the fields of surface ships, underwater submarines, etc. However, when a ship maneuvers, the problem of easy liquid sloshing is inevitable, which poses a great challenge to the stability of the ship. Therefore, it is necessary to develop and innovate the existing structural forms of water tanks. An anti-sway water tank consists of a water tank and anti-sway plates installed inside it. The criss-cross internal partitions of the water tank have the effect of slowing down the water flow velocity inside the water tank, weakening the sloshing caused by water waves to the water tank, and reducing the impact of the internal water flow of the water tank on the ship's stability when the ship maneuvers.

[0003] However, the anti-sway water tank cannot fundamentally eliminate the sloshing effect of the water waves generated by the internal water flow of the water tank on the water tank. Chinese Patent CN105115159B discloses a piston-type water tank, which proposes another anti-sway means for the water tank. The water tank is separated into two isolated spaces by a piston. After one of the spaces is filled with water, the volume change of the water storage space is realized by changing the volume ratio of the two spaces. During this process, since the space for storing water is completely filled with water, the internal water flow will not generate water waves on the liquid surface. However, the researchers found that the sloshing situation of the water tank is still not completely eliminated. The reason is that the water tank realizes the injection and discharge of water into the water tank through a water delivery pipe. During the process of water storage and discharge, vortices will be formed inside the water flow centered on the pipe orifice of the water delivery pipe. When the ship water tank stores and discharges water, the internal pressure of the water tank is extremely high and the water flow velocity is extremely fast, resulting in the vortices not only having a rapid flow velocity, but also a large range and spreading to the edge of the internal space of the water tank, and then also impacting the inner wall of the water tank and causing sloshing. Therefore, the current piston-type water tank is still difficult to achieve a good anti-sway effect for the water tank. Summary of the Invention

[0004] In view of this, the present invention proposes a piston-type water tank to solve the problem that the internal pressure of the water tank is extremely high and the water flow velocity is extremely fast, resulting in vortices not only having a rapid flow velocity, but also a large range and spreading to the edge of the internal space of the water tank, and then impacting the inner wall of the water tank and causing sloshing.

[0005] The technical solution of the present invention is implemented as follows: The present invention provides a piston-type water tank, which includes a box body, and a water delivery pipe is connected to the bottom thereof; a plurality of partition plates are arranged in the box body and divide the interior of the box body into a plurality of cavities; a movable plate is arranged in the box body; wherein, both ends of each partition plate extend in the vertical direction along the ground, and a plurality of through holes are arranged on the partition plates, and each cavity is communicated through the through holes; the outer edge of the movable plate abuts against the inner edge of the radial cross-section of the box body, and the movable plate divides a plurality of cavities into a first chamber and a second chamber which are arranged up and down at the same time. The second chamber located in the center is communicated with the water delivery pipe, and each second chamber is filled with water. The movable plate moves relative to the box body in the vertical direction along the ground and changes the volumes of the first chamber and the second chamber.

[0006] On the basis of the above technical solution, preferably, the movable plate includes a plurality of plate units, which are respectively arranged in each cavity and divide each cavity into a first chamber and a second chamber which are arranged up and down; wherein, the outer edge of the plate unit abuts against the inner edge of the radial cross-section of the cavity, and the plate unit moves relative to the box body in the vertical direction along the ground.

[0007] More preferably, a driving assembly is further included. The driving assembly has a driving end, and the driving end is connected to the movable plate, and the driving assembly drives each plate unit to move synchronously.

[0008] More preferably, a sealing strip is further included. Both ends of the sealing strip extend in the vertical direction along the ground, and the sealing strip is arranged in the included angle of adjacent sides of the radial cross-section of the cavity; the corners of the plate unit are rounded and abut against the sealing strip.

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

[0010] More preferably, the bottom of the partition plate abuts against the bottom surface of the box body, and there is a gap between the top of the partition plate and the top of the box body. The linkage plate is arranged in the gap between the top of the partition plate and the top of the box body and moves in the gap.

[0011] More preferably, the movable plate further includes a first slider. Both ends of the through hole extend to both ends of the partition plate in the vertical direction along the ground; the first slider is arranged in the through hole and moves along the extending direction of the through hole. The first slider is connected between two adjacent plate units, and each plate unit is connected into a movable plate through the first slider and moves synchronously.

[0012] Further preferably, the movable plate further includes a corrugated pipe, which is sleeved in the box body and located between the movable plate and the bottom of the box body. There is a gap between the outer wall of the corrugated pipe and the inner wall of the box body. The corrugated pipe surrounds each second chamber at the same time and expands and contracts with the change of the volume of the second chamber.

[0013] Further preferably, the driving assembly includes a second slider and a third linear driving mechanism. A sliding groove is formed on the outer wall of the box body, and both ends of the sliding groove extend in the vertical direction of the ground; the second slider is arranged in the sliding groove and moves along the extending direction of the sliding groove. One end of the second slider is connected to one of the plate units and the other end extends out of the box body through the sliding groove; one end of the third linear driving mechanism is arranged on the outer wall of the box body, and the other end of the third linear driving mechanism is connected to the free end of the second slider. The third linear driving mechanism drives the second slider to move along the sliding groove.

[0014] Further preferably, the length of the sliding groove in the extending direction is not greater than the length of the through hole in the extending direction.

[0015] A piston-type water tank of the present invention has the following beneficial effects compared with the prior art:

[0016] (1) Based on the piston-type water tank, the present invention divides the interior of the box body into several interconnected and independent cavities by arranging a partition plate with through holes in the box body, connects the water delivery pipe to the water tank in the center, restricts the generated water flow vortex in the middle of the box body, and slows down the impact of the vortex flow of the vortex on the inner wall of the box body through each partition plate, achieving a good anti-slosh effect of the water tank.

[0017] (2) The present invention makes the plate unit and the partition plate and the inner wall of the box body achieve effective movable sealing by the contact of the sealing strip with the plate unit with rounded corners, avoiding the leakage of the water stored in the second chamber into the first chamber and destroying the water injection and drainage efficiency of the piston-type water tank.

[0018] (3) The present invention realizes the piston-type water 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

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

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

[0022] Figure 3 A side sectional view of the piston type water tank of the present invention in another state;

[0023] Figure 4 A top sectional view of the piston type water tank of the present invention;

[0024] Figure 5 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 state of another embodiment of the piston type water tank of the present invention.

[0026] In the figure: 1. box body; 11. water pipe; 100. cavity; 101. first chamber; 102. second chamber; 103. slide groove; 2. partition; 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 DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 comprises a tank body 1, a partition plate 2 and a movable plate 3.

[0029] The bottom of the box body 1 is connected with a water pipe 11. The box body 1 is filled and drained through the water pipe 11. The box body 1 is usually placed vertically and is cylindrical or square.

[0030] A plurality of partitions 2 are arranged in the box body 1 and divide the interior of the box body 1 into a plurality of cavities 100. Both ends of each partition 2 extend in a vertical direction to the ground, and a plurality of through holes 201 are arranged on the partition 2. The cavities 100 are connected through the through holes 201, so that water can flow between the cavities 100 by convection.

[0031] The movable plate 3 is arranged inside the box body 1; the outer edge of the movable plate 3 abuts against the inner edge of the radial section of the box body 1. The movable plate 3 simultaneously divides a plurality of cavities 100 into a first chamber 101 and a second chamber 102 which are arranged up and down. The second chamber 102 located in the center is communicated with the water delivery 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 relative to the box body 1 in the vertical direction along the ground, the volumes of the first chamber 101 and the second chamber 102 will be changed simultaneously. When the volume of the second chamber 102 becomes smaller, the stored water inside it will be discharged through the water delivery pipe 11. When the volume of the second chamber 102 becomes larger, the stored water inside it will be refilled through the water delivery pipe 11. During this process, the second chamber 102 is filled with water and its volume changes with the change of the stored water volume at all times. There is no gas space in the second chamber 102, so there is no liquid surface for the water flow to generate water waves on the liquid surface, and the problem that the water waves impact the inner wall of the box body 1 and cause the water tank to shake will not occur. At the same time, a plurality of partition plates 2 divide the inside of the box body 1 into a plurality of interconnected cavities 100. When water is injected into the box body 1 through the water delivery pipe 11 or discharged from the box body 1, even if vortices are generated, the vortices will be located in the second chamber 102 communicated with the water delivery pipe 11. More precisely, the vortices are restricted in the second chamber 102 located in the center of the box body 1. The vortex flow cannot impact the inner wall of the box body 1 but only impacts the partition plates 2; at the same time, the impact force of the water flow outside the vortex hitting the partition plates 2 is also weakened by the partition plates 2. Therefore, even if part of the water flow enters the adjacent cavity 100 through the through holes 201, the impact of the water flow on the inner wall of the box body 1 hardly causes the box body 1 to shake.

[0032] In Figure 2 In a preferred embodiment described above, the box body 1 has a plurality of independent cavities 100, and the movable plate 3 includes a plate unit 31.

[0033] Among them, a plurality of plate units 31 are respectively arranged in each cavity 100 and divide each cavity 100 into a first chamber 101 and a second chamber 102 which are arranged up and down; 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 to form a movable seal between the plate unit 31 and the inner wall of the box body 1 and the surface of the partition plate 2, so as to prevent the water in the second chamber 102 from leaking into the first chamber 101. The plate unit 31 moves relative to the box body 1 in the vertical direction along the ground to realize the piston function.

[0034] In Figure 2 In a preferred embodiment described above, in order to drive each plate unit 31 to move, a driving assembly 4 is further included.

[0035] Among them, the driving assembly 4 has a driving end, the driving end is connected to the movable plate 3, and the driving assembly 4 drives each plate unit 31 to move synchronously, realizing the piston function of the movable plate 3.

[0036] In Figure 4 In a preferred embodiment described above, in order to improve the sealing effect of the movable plate 3, a sealing strip 5 is further included.

[0037] Wherein, both ends of the sealing strip 5 extend along the vertical direction of the ground, and the sealing strip 5 is arranged within the included angle of adjacent sides of the radial cross-section of the cavity 100. The sealing strip 5 can be made of metal or plastic materials.

[0038] The corners of the plate unit 31 are rounded and abutted against the sealing strip 5, avoiding the situation that the plate unit 31 has sharp corners and cannot achieve effective sealing; at the same time, the rounded corners also enable the plate unit 31 to closely abut against the sealing strip 5 and the inner wall of the cavity 100 to achieve sealing. Sealing rings are also arranged on the rounded corners of the plate unit 31 to ensure the sealing effect.

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

[0040] Wherein, one end of the first linear driving mechanism 41 is arranged outside the box body 1 and the other end is inserted into the box body 1 along the vertical direction of the ground.

[0041] The linkage plate 42 is arranged on the end of the first linear driving mechanism 41 inserted into the box body 1 and moves along the vertical direction of the ground under the drive of the first linear driving mechanism 41.

[0042] One ends of a plurality of second linear driving mechanisms 43 are arranged on the linkage plate 42 and the other ends are connected to the respective plate units 31 along the vertical direction of the ground, and drive the respective plate units 31 to move along the vertical direction of the ground. Both the first linear driving mechanism 41 and the second linear driving mechanism 43 can adopt telescopic air rods or hydraulic telescopic cylinders, or can also adopt a rotary motor cooperating with a screw slider mechanism to achieve precise control of the moving distance of the plate unit 31.

[0043] When adopting the above technical solution, first, the first linear driving mechanism 41 drives the linkage plate 42 to move in a large range or a long distance, and then the second linear driving mechanism 43 drives the plate unit 31 to move precisely in a small range or a short distance. In addition, in this embodiment, the respective plate units 31 can also be controlled to move independently to realize the change of the volume of a single second chamber 102, thereby changing the center of gravity position of the water tank.

[0044] In Figure 3In a preferred embodiment described above, the bottom of the partition plate 2 abuts against the bottom surface of the box body 1, and there is a gap between the top of the partition plate 2 and the top of the box body 1. The linkage plate 42 is arranged in the gap between the top of the partition plate 2 and the top of the box body 1 and moves within the gap, so that the linkage plate 42 has a sufficient range of movement. In addition, an opening is provided at the top of the box body 1 so that the driving end of the first linear driving mechanism 41 can be inserted into the interior of the box body 1 through the opening.

[0045] In Figure 5 In a preferred embodiment described above, in order to enable the plate units 31 constituting the movable plate 3 to move synchronously, the movable plate 3 further includes a first slider 32.

[0046] Among them, both ends of the through hole 201 extend in the vertical direction along the ground to both ends of the partition plate 2. At this time, the through holes 201 are not arranged in a matrix on the partition plate 2, but only a row of through holes 201 are provided, and each through hole 201 is in a long strip shape.

[0047] The first slider 32 is arranged in the through hole 201 and moves along the extending direction of the through hole 201. The first slider 32 is connected between two adjacent plate units 31. Each plate unit 31 is connected into the movable plate 3 through the first slider 32 and moves synchronously. A sealing ring is also provided on the side surface of the first slider 32 in contact with the through hole 201.

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

[0049] Among them, the corrugated pipe 33 is sleeved in the box body 1 and is located between the movable plate 3 and the bottom of the box body 1. There is a gap between the outer wall of the corrugated pipe 33 and the inner wall of the box body 1. The corrugated pipe 33 surrounds each second chamber 102 at the same time, and the corrugated pipe 33 expands and contracts with the change of the volume of the second chamber 102. By surrounding all the second chambers 102 with the corrugated pipe 33, a sealed space is formed by the corrugated pipe 33, the movable plate 3 and the bottom of the box body 1 for storing water, thus avoiding the leakage of stored water outside the second chamber 102.

[0050] In Figure 6 In a preferred embodiment described above, in order to realize the synchronous movement of the plate units 31, the driving assembly 4 includes a second slider 44 and a third linear driving mechanism 45.

[0051] Among them, a sliding groove 103 is provided on the outer wall of the box body 1, and both ends of the sliding groove 103 extend in the vertical direction along the ground. Since the corrugated pipe 33 is sleeved in the box body 1, the water in the second chamber 102 will not leak outside the corrugated pipe 33 and flow out of the box body 1 through the sliding groove 103.

[0052] The second slider 44 is arranged in the chute 103 and moves along the extending direction of the chute 103. One end of the second slider 44 is connected to one of the plate units 31, and the other end extends out of the box body 1 through the chute 103.

[0053] One end of the third linear driving mechanism 45 is arranged on the outer wall of the box body 1, and the other end of the third linear driving mechanism 45 is connected to the free end of the second slider 44. The third linear driving mechanism 45 drives the second slider 44 to move along the chute 103. The third linear driving mechanism 45 can adopt a telescopic air rod or a hydraulic telescopic cylinder, or can also adopt a rotary motor cooperating with a screw slider mechanism to realize precise control of the moving distance of the plate unit 31.

[0054] When the above technical solution is adopted, the third linear driving mechanism 45 drives the second slider 44 to move along the chute 103, and the second slider 44 drives the connected plate unit 31 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] In Figure 6 In a preferred embodiment described above, the length of the chute 103 in the extending direction is not greater than the length of the through hole 201 in the extending direction, so that the volume of the second chamber 102 can be expanded and compressed as much as possible.

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

Claims

1. A piston type water tank, characterized in that: include: The box body (1) has a water pipe (11) at its bottom; A plurality of partitions (2) are arranged in the box (1) and divide the interior of the box (1) into a plurality of cavities (100); A movable plate (3) is arranged in the box body (1); Wherein, both ends of each partition (2) extend in a direction perpendicular to the ground, a plurality of through holes (201) are arranged on the partition (2), and each of the cavities (100) is connected via the through holes (201); The outer edge of the movable plate (3) abuts against the inner edge of the radial section of the box body (1); the movable plate (3) simultaneously divides a plurality of cavities (100) into first chambers (101) and second chambers (102) arranged one above the other; the second chamber (102) located in the center is connected to the water pipe (11); each of the second chambers (102) is filled with water; the movable plate (3) moves relative to the box body (1) in a direction vertical to the ground, and changes the volumes of the first chamber (101) and the second chamber (102).

2. A piston type water tank according to claim 1, characterized in that: The movable plate (3) comprises: A plurality of plate units (31) are respectively arranged in each of the cavities (100) and divide each of the cavities (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), and the plate unit (31) moves relative to the box (1) in a direction vertical to the ground.

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

4. A piston type water tank according to claim 2, characterized in that: It also includes a sealing strip (5), the two ends of which extend in a direction perpendicular to the ground, and the sealing strip (5) is arranged within the angle between adjacent edges of the radial section of the cavity (100); The corners of the plate unit (31) are rounded and abut against the sealing strip (5).

5. The piston type water tank according to claim 3, characterized in that: The driving assembly (4) comprises: A first linear drive mechanism (41), one end of which is arranged outside the box (1) and the other end of which is inserted into the box (1) along a vertical direction of the ground; The linkage plate (42) is arranged on the end of the first linear drive mechanism (41) inserted into the box (1), and moves in a vertical direction along the ground under the drive of the first linear drive mechanism (41). A plurality of second linear drive mechanisms (43) have one end disposed on the linkage plate (42) and the other end connected to each plate unit (31) in a direction perpendicular to the ground, and drive each plate unit (31) to move in a direction perpendicular to the ground.

6. A piston type water tank according to claim 5, characterized in that: The bottom of the partition (2) abuts against the bottom surface of the box body (1), a gap is left between the top of the partition (2) and the top of the box body (1), and the linkage plate (42) is arranged in the gap between the top of the partition (2) and the top of the box body (1) and moves in the gap.

7. The piston type water tank according to claim 3, characterized in that: The movable plate (3) further comprises a first sliding block (32), The two ends of the through hole (201) extend to the two ends of the partition (2) along the vertical direction of the ground; The first slider (32) is arranged 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); and the plate units (31) are connected to form a movable plate (3) through the first slider (32) and move synchronously.

8. A piston type water tank according to claim 7, characterized in that: The movable plate (3) further comprises a bellows (33), The bellows (33) is sleeved in the box body (1) and is located between the movable plate (3) and the bottom of the box body (1). A gap is left between the outer wall of the bellows (33) and the inner wall of the box body (1). The bellows (33) simultaneously surrounds each second chamber (102). The bellows (33) expands and contracts as the volume of the second chamber (102) changes.

9. The piston type water tank according to claim 7, characterized in that: The driving assembly (4) comprises a second slider (44) and a third linear driving mechanism (45). A slide groove (103) is provided on the outer wall of the box body (1), and two ends of the slide groove (103) extend in a direction perpendicular to the ground; The second sliding block (44) is arranged in the sliding groove (103) and moves along the extension direction of the sliding groove (103); one end of the second sliding block (44) is connected to one of the plate units (31) and the other end passes through the sliding groove (103) and extends outside the box body (1); One end of the third linear drive mechanism (45) is arranged on the outer wall of the box body (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).

10. A piston type water tank according to claim 9, characterized in that: The length of the slide groove (103) in the extending direction is not greater than the length of the through hole (201) in the extending direction.

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