Pumping water tank structure and pumping device

Abstract

The utility model relates to a pumping water tank structure and a pumping device. The pumping water tank structure comprises a water tank body and a density guide assembly. A partition plate is arranged in the water tank body to divide the space in the water tank body into a first cavity and a second cavity which are independent of each other. And a first mounting hole communicated with the first cavity and the second cavity is formed in the partition plate. A second mounting hole communicated with the first cavity and a third mounting hole communicated with the second cavity are formed in the two ends of the water tank body respectively. And the second mounting hole and the third mounting hole are respectively used for sealing and communicating with one end of the cylinder body of the concrete cylinder and one end of the cylinder body of the main oil cylinder. The sealing guide assembly is detachably installed in the first installation hole in a sealed mode and provided with a sealing guide channel communicating with the first cavity and the second cavity. The sealing guide channel is in sealing contact with a piston rod of the main oil cylinder. Due to the arrangement of the pumping water tank structure, the working reliability of the pumping device is greatly improved, and the service life of the pumping device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pumping machinery, in particular to a pumping water tank structure and a pumping device. Background Art

[0002] For pumping devices with water tank structures, the goal of structural design is to achieve high coaxiality accuracy between the concrete cylinder and the pumping oil cylinder, and to cool and lubricate the concrete piston to achieve the purpose of continuous concrete transportation by the pumping system. Pumping devices with water tank structures are often used in industrial pumping machinery such as concrete pump trucks, vehicle-mounted pumps, trailer pumps, and mud pumps.

[0003] At present, the water tank structure in common pumping devices often has only one inner cavity, and the sealing end of the main oil cylinder is in direct contact with the sewage in the water tank, which increases the sealing requirements of the main oil cylinder seal and reduces the service life in harsh environments. Some highly corrosive substances and high particle hardness substances in sewage can easily pollute the hydraulic oil and cause great damage to the hydraulic system, thus causing hydraulic system failure and even machine failure, resulting in great economic losses. Utility Model Content

[0004] Based on this, it is necessary to provide a pumping water tank structure and a pumping device that can improve the sealing effect and sealing reliability and extend the service life.

[0005] A pumping water tank structure comprises a water tank body and a sealing guide assembly;

[0006] A partition is provided in the water tank body to separate the space in the water tank body into a first cavity and a second cavity which are independent of each other; a first mounting hole communicating with the first cavity and the second cavity is provided on the partition; a second mounting hole communicating with the first cavity and a third mounting hole communicating with the second cavity are respectively provided at both ends of the water tank body; the second mounting hole and the third mounting hole are respectively used to seal and communicate with one end of the cylinder body of the concrete cylinder and one end of the cylinder body of the main oil cylinder;

[0007] The sealing guide assembly is detachably and sealingly mounted in the first mounting hole, and has a sealing guide channel communicating with the first cavity and the second cavity; the sealing guide channel is used for sealing contact with the piston rod of the master cylinder.

[0008] In one embodiment, the water tank body includes a tank body and a tank cover; the tank body includes a bottom plate and a side plate arranged along the circumference of the bottom plate and connected to the bottom plate; the tank cover is detachably arranged at one end of the side plate away from the bottom plate to cover the opening of the tank body.

[0009] In one embodiment, the side panel includes a first split panel, a second split panel, a third split panel and a fourth split panel; the first split panel and the second split panel are spaced apart on the bottom panel and fixedly connected to the bottom panel; the third split panel and the fourth split panel are spaced apart in a direction perpendicular to the spacing direction of the first split panel and the second split panel;

[0010] The water tank body also includes a pull rod; the pull rod is detachably connected to the third sub-plate and the fourth sub-plate in sequence to clamp the bottom plate, the first sub-plate and the second sub-plate between the third sub-plate and the fourth sub-plate.

[0011] In one embodiment, a first observation hole communicating with the first cavity and a second observation hole communicating with the second cavity are respectively formed at one end of the side plate away from the bottom plate; and / or

[0012] The bottom plate is provided with a drainage hole communicating with the first cavity and a liquid drainage hole communicating with the second cavity respectively; the drainage hole and the liquid drainage hole can be selectively closed or opened.

[0013] In one embodiment, the sealing guide assembly includes a sealing seat and an annular seal; the sealing seat is detachably mounted on the first mounting hole and forms a sliding hole serving as a sealing guide channel; a sealing groove is circumferentially formed on the inner wall of the sliding hole; the annular seal is arranged in the groove, and the inner wall of the annular seal is used for sealing contact with the piston rod of the master cylinder.

[0014] In one embodiment, one end of the sealing seat is located outside the first mounting hole, and is sealed and abutted against the side surface of the partition located on one side of the first cavity or the second cavity; the sealing groove is located at the edge of one end of the sliding hole in the first mounting hole;

[0015] The sealing guide assembly also includes a sealing cover; the sealing cover is detachably connected to one end of the sealing seat provided with the sealing groove so as to press the annular seal into the sealing groove; the sealing seat and the side of the partition located on one side of the second cavity or the first cavity are sealed and abutted; a through hole is formed on the sealing cover that is connected to the sliding hole and is coaxially arranged.

[0016] In one of the embodiments, a first dustproof groove is formed on the inner wall of the through hole near the edge of one end of the sliding hole along the circumference of the through hole; a second dustproof groove is formed on the inner wall of the sliding hole away from the end of the sealing cover along the circumference of the sliding hole; a first dustproof ring and a second dustproof ring are respectively arranged in the first dustproof groove and the second dustproof groove, and the first dustproof ring is clamped between the first dustproof groove and the end face of the annular seal; the inner walls of the first dustproof ring and the second dustproof ring are both used for sealing contact with the piston rod of the master cylinder.

[0017] In one of the embodiments, an annular groove is formed on the inner wall of the sliding hole along the circumferential direction; the sealing guide assembly also includes an elastic support ring arranged in the annular groove; the elastic support ring is used to be slidably mounted on the piston rod of the master cylinder.

[0018] In one embodiment, one end of the sealing seat is located in the second cavity; a lubrication channel connecting the second cavity and the sliding hole is formed on the sealing seat; the opening of one end of the lubrication channel located in the sliding hole is located at the end of the annular seal away from the first cavity.

[0019] A pumping device comprises the pumping water tank structure, a main oil cylinder and a concrete cylinder as described above; the cylinder body of the concrete cylinder is installed at one end of the water tank body, and is sealed and connected with the first mounting hole; one end of the piston rod of the concrete cylinder extends into the first cavity; the cylinder body of the main oil cylinder is installed at the other end of the water tank body, and is sealed with the inner wall of the second mounting hole; one end of the piston rod of the main oil cylinder passes through the second cavity and the sealed guide channel in sequence, and is drivingly connected with the piston rod of the concrete cylinder.

[0020] In the above-mentioned pumping water tank structure and pumping device, during actual use, the first cavity is filled with liquid water, and the second cavity is filled with cooling lubricant. The cooling lubricant cools and lubricates the piston rod of the main oil cylinder, which is beneficial to extending the service life of the pumping device and improving the working reliability. The partition and density guide assembly form a first sealing barrier in the water tank body, and the sealing structure of the main oil cylinder itself forms a second sealing barrier, which can effectively reduce the probability of the main oil cylinder being contaminated. At the same time, it also greatly reduces the probability of the sealing structure of the main oil cylinder contacting with the polluting components in the sewage, which is beneficial to further extending the service life of the main oil cylinder. In addition, in actual production, even if the water in the first water cavity is contaminated, the partition and density guide assembly can also provide a buffer time for maintenance work, that is, if the construction period is relatively tight, the staff can also wait until a certain period of pumping work is completed before carrying out maintenance work. At this time, even if a small amount of sewage enters the second cavity, the impact on the main oil cylinder will not be great, which is beneficial to the smooth progress of the pumping work and further improves the working reliability. Therefore, the arrangement of the above-mentioned pumping water tank structure greatly improves the working reliability of the pumping device and effectively prolongs the service life of the pumping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a pumping device in one embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic structural diagram of a pumping water tank structure in the pumping device shown;

[0023] Figure 3 for Figure 2 A top view of the tank body in the pumping water tank structure shown;

[0024] Figure 4 for Figure 2 A schematic diagram of the structure of the sealing seat in the pumping water tank structure shown;

[0025] Figure 5 for Figure 2 Schematic diagram of the structure of the sealing cover in the pumping water tank structure shown.

[0026] Reference numerals: 10, pumping device; 100, pumping water tank structure; 110, water tank body; 111, partition; 112, first cavity; 113, second cavity; 114, second mounting hole; 115, third mounting hole; 116, box body; 1161, bottom plate; 11611, drainage hole; 11612, drainage hole; 1162, side plate; 11621, first sub-plate; 11622, second sub-plate; 11623, third sub-plate; 11624, fourth sub-plate; 11625, first observation hole; 116 626, second observation hole; 117, box cover; 118, pull rod; 120, sealing guide assembly; 121, sealing seat; 1211, sliding hole; 1212, sealing groove; 1213, second dustproof groove; 1214, annular groove; 1215, lubrication channel; 122, annular seal; 123, sealing cover; 1231, through hole; 1232, first dustproof groove; 124, first dustproof ring; 125, second dustproof ring; 126, elastic support ring; 200, concrete cylinder; 300, main oil cylinder. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it can be directly on the other element or there can be an intermediate element. It is also understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or there can be one or more intermediate elements.

[0030] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0031] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0032] See also Figure 1 The utility model provides a pumping water tank structure 100 and a pumping device 10. The pumping device 10 includes a pumping water tank structure 100, a concrete cylinder 200 and a main oil cylinder 300.

[0033] The cylinder body of the concrete cylinder 200 and the cylinder body of the main oil cylinder 300 are respectively installed at both ends of the pumping water tank structure 100, and the piston rod of the concrete cylinder 200 and the piston rod of the main oil cylinder 300 are transmission-connected in the pumping water tank structure 100.

[0034] Please also read Figure 2 The pumping water tank structure 100 in the preferred embodiment of the present utility model includes a water tank body 110 and a sealing guide assembly 120 .

[0035] A partition 111 is provided in the water tank body 110 to separate the space in the water tank body 110 into a first cavity 112 and a second cavity 113 that are independent of each other. A first mounting hole (not shown) that communicates with the first cavity 112 and the second cavity 113 is provided on the partition 111. A second mounting hole 114 that communicates with the first cavity 112 and a third mounting hole 115 that communicates with the second cavity 113 are provided at both ends of the water tank body 110. The second mounting hole 114 and the third mounting hole 115 are used to seal and communicate with one end of the cylinder body of the concrete cylinder 200 and one end of the cylinder body of the main oil cylinder 300, respectively.

[0036] The sealing guide assembly 120 is detachably and sealingly mounted in the first mounting hole and has a sealing guide passage (not shown) connecting the first cavity 112 and the second cavity 113. The sealing guide passage is used for sealing contact with the piston rod of the master cylinder 300.

[0037] In the pumping device 10, the cylinder body of the concrete cylinder 200 is installed at one end of the water tank body 110, and is sealed and connected with the first mounting hole, and one end of the piston rod of the concrete cylinder 200 extends into the first cavity 112. The cylinder body of the master cylinder 300 is installed at the other end of the water tank body 110, and is sealed with the inner wall of the second mounting hole 114. One end of the piston rod of the master cylinder 300 passes through the second cavity 113 and the sealing guide channel in sequence, and is drivingly connected with the piston rod of the concrete cylinder 200. The piston rod of the master cylinder 300 is slidably arranged in the sealing guide channel, and is in sealing contact with the inner wall of the sealing guide channel.

[0038] In the actual use of the pumping water tank structure 100 and the pumping device 10, the first cavity 112 is filled with liquid water, and the second cavity 113 is filled with cooling lubricant, and the liquid level of the cooling lubricant is higher than the position height of the piston rod of the master cylinder 300, so as to cool and lubricate the piston rod of the master cylinder 300, which is conducive to extending the service life of the pumping device 10 and improving the working reliability. The cooling lubricant can be oil, glycerin coolant, etc., which is not limited here, as long as it can meet the cooling and lubricating functions of the piston rod of the master cylinder 300.

[0039] The partition 111 and the density guide assembly form a first sealing barrier in the water tank body 110, and the sealing structure of the master cylinder 300 itself forms a second sealing barrier, which can effectively reduce the probability of the master cylinder 300 being contaminated. At the same time, it also greatly reduces the probability of the sealing structure of the master cylinder 300 contacting sewage, which is beneficial to further extend the service life of the master cylinder 300.

[0040] In addition, in actual production, even if the water in the first water chamber is contaminated, the partition 111 and the density guide assembly can also provide a buffer time for maintenance work. That is, if the construction period is relatively tight, the staff can also wait until a certain period of pumping work is completed before carrying out maintenance work. At this time, even if a small amount of sewage enters the second cavity 113, it will not have much impact on the main oil cylinder 300, which is conducive to the smooth progress of the pumping work and further improves the work reliability.

[0041] Therefore, the configuration of the above-mentioned pumping water tank structure 100 greatly improves the working reliability of the pumping device 10 and effectively prolongs the service life of the pumping device 10.

[0042] In some embodiments, the water tank body 110 includes a box body 116 and a box cover 117. The box body 116 includes a bottom plate 1161 and a side plate 1162 arranged along the circumference of the bottom plate 1161 and connected to the bottom plate 1161. The box cover 117 is detachably arranged at one end of the side plate 1162 away from the bottom plate 1161 to cover the opening of the box body 116. In this way, the water tank body 110 is set as the box body 116 and the box cover 117, and the box body 116 is set as the bottom plate 1161 and the side plate 1162, which not only facilitates the assembly of the partition plate 111, the sealing guide assembly 120 and other structures in the box body 116, but also makes it easier to connect the piston rod of the main oil cylinder 300 with the piston rod of the concrete cylinder 200.

[0043] Please also read Figure 3Further, in some embodiments, the side panel 1162 includes a first split panel 11621, a second split panel 11622, a third split panel 11623, and a fourth split panel 11624. The first split panel 11621 and the second split panel 11622 are spaced apart on the bottom panel 1161 and fixedly connected to the bottom panel 1161. The third split panel 11623 and the fourth split panel 11624 are spaced apart in a direction perpendicular to the spacing direction of the first split panel 11621 and the second split panel 11622.

[0044] The water tank body 110 further includes a pull rod 118. The pull rod 118 is detachably connected to the third split plate 11623 and the fourth split plate 11624 in sequence, so as to clamp the bottom plate 1161, the first split plate 11621 and the second split plate 11622 between the third split plate 11623 and the fourth split plate 11624.

[0045] Specifically, there are multiple tie rods 118, and the multiple tie rods 118 are arranged at intervals on the third sub-plate 11623 to achieve multi-point tightening of the third sub-plate 11623 and the fourth sub-plate 11624, thereby improving the structural stability of the box body 116. At the same time, the arrangement of the tie rod 118 structure makes it very convenient to disassemble and assemble the third sub-plate 11623 and the fourth sub-plate 11624, thereby further reducing the difficulty of assembling the various parts in the box body 116, further improving the manufacturing convenience of the pumping device 10, and at the same time, providing a pulling force in the opposite direction to the third sub-plate 11623 and the fourth sub-plate 11624, thereby making the structure of the pumping device 10 more stable.

[0046] Please refer again Figure 2 Furthermore, in some embodiments, a first observation hole 11625 communicating with the first cavity 112 and a second observation hole 11626 communicating with the second cavity 113 are respectively opened at one end of the side plate 1162 away from the bottom plate 1161. Therefore, the first observation hole 11625 and the second observation hole 11626 are located at a higher position on the side plate 1162, which can prevent the water in the first cavity 112 and the cooling lubricant in the second cavity 113 from overflowing, and also facilitate the staff to observe the conditions in the first cavity 112 and the second cavity 113 at any time, so as to help the staff to timely understand the operation and contamination conditions of various parts in the water tank structure.

[0047] Please refer again Figure 3 Further, in some embodiments, the bottom plate 1161 is provided with a drainage hole 11611 communicating with the first cavity 112 and a drainage hole 11612 communicating with the second cavity 113. The drainage hole 11611 and the drainage hole 11612 can be selectively opened or closed.

[0048] The opening or closing of the drain hole 11611 and the drain hole 11612 can be achieved by a sealing plug or a pipe with a valve connected to the drain hole 11611 and the drain hole 11612. The arrangement of the drain hole 11611 and the drain hole 11612 facilitates the discharge of water in the first cavity 112 and lubricating coolant in the second cavity 113, effectively improving the convenience of use of the pumping device 10.

[0049] See also Figure 2 and Figure 4 In some embodiments, the sealing guide assembly 120 includes a sealing seat 121 and an annular seal 122. The sealing seat 121 is detachably mounted on the first mounting hole, and is formed with a sliding hole 1211 as a sealing guide channel. The inner wall of the sliding hole 1211 is provided with a sealing groove 1212 along the circumferential direction. The annular seal 122 is arranged in the groove, and the inner wall of the annular seal 122 is used for sealing contact with the piston rod of the master cylinder 300. Among them, the annular seal 122 is used to seal between the piston rod of the master cylinder 300 and the partition 111, and can be a single sealing structure, such as a lip seal ring, an O-ring, etc., or a combined seal composed of multiple sealing structures, such as a sealing combination formed by a plurality of the same shapes abutting in sequence (such as a V-group seal composed of a plurality of V-shaped seal rings, etc.), or a sealing combination composed of sealing structures of different shapes abutting in sequence, etc.

[0050] The sealing seat 121 is detachably mounted on the partition 111. In actual use, the pumping water tank structure 100 can be adapted to different master cylinders 300 by replacing sealing seats 121 of different specifications. Therefore, the pumping water tank structure 100 has high applicability.

[0051] Furthermore, in some embodiments, one end of the sealing seat 121 is located outside the first mounting hole and seals and abuts against the side of the partition 111 located on one side of the first cavity 112 or the second cavity 113. The sealing groove 1212 is located at the edge of one end of the sliding hole 1211 in the first mounting hole.

[0052] The sealing guide assembly 120 further includes a sealing cover 123. The sealing cover 123 is detachably connected to one end of the sealing seat 121 provided with a sealing groove 1212, so as to press the annular seal 122 into the sealing groove 1212. The sealing seat 121 is sealed and abutted against the side surface of the partition 111 located on one side of the second cavity 113 or the first cavity 112. The sealing cover 123 is formed with a through hole 1231 which is connected to the sliding hole 1211 and is coaxially arranged.

[0053] Specifically, when the sealing cover 123 abuts against the side of the partition 111 located on the first cavity 112 side, the sealing seat 121 abuts against the side of the partition 111 located on the second cavity 113 side; when the sealing cover 123 abuts against the side of the partition 111 located on the second cavity 113 side, the sealing seat 121 abuts against the side of the partition 111 located on the first cavity 112 side.

[0054] The sealing seat 121 and the sealing cover 123 clamp the partition 111 from both sides of the partition 111 and are detachably connected to each other, so that the sealing seat 121 is detachably installed on the partition 111, making the installation of the annular seal 122 and the sealing seat 121 easier. At the same time, the sealing cover 123 presses the annular seal 122 into the sealing groove 1212, and the sealing reliability of the annular seal 122 can also be improved.

[0055] Please also read Figure 5 Furthermore, in some embodiments, a first dustproof groove 1232 is formed on the inner wall of the through hole 1231 near the edge of one end of the sliding hole 1211 along the circumference of the through hole 1231. A second dustproof groove 1213 is formed on the inner wall of the sliding hole 1211 away from one end of the sealing cover 123 along the circumference of the sliding hole 1211. A first dustproof ring 124 and a second dustproof ring 125 are respectively disposed in the first dustproof groove 1232 and the second dustproof groove 1213, and the first dustproof ring 124 is clamped between the first dustproof groove 1232 and the end surface of the annular seal 122. The inner walls of the first dustproof ring 124 and the second dustproof ring 125 are both used for sealing contact with the piston rod of the master oil cylinder 300.

[0056] The provision of the first dustproof ring 124 and the second dustproof ring 125 can prevent dust in the first cavity 112 and dust in the second cavity 113 from entering the sealing guide channel and causing wear of the piston rod of the master cylinder 300, which is beneficial to further extend the service life of the master cylinder 300.

[0057] Furthermore, in some embodiments, an annular groove 1214 is formed on the inner wall of the sliding hole 1211 along the circumferential direction. The sealing guide assembly 120 further includes an elastic support ring 126 disposed in the annular groove 1214. The elastic support ring 126 is used to be slidably sleeved on the piston rod of the master cylinder 300.

[0058] The elastic support ring 126 supports, cushions and seals the piston rod of the master cylinder 300, thereby further improving the sealing effect between the sealing guide assembly 120 and the piston rod of the master cylinder 300. At the same time, it can also reduce the probability of shaking of the piston rod of the master cylinder 300 during operation, which is beneficial to further extend the service life of the pumping device 10.

[0059] Further, in some embodiments, one end of the sealing seat 121 is located in the second cavity 113. A lubrication channel 1215 is formed on the sealing seat 121 to connect the second cavity 113 and the sliding hole 1211. The opening of one end of the lubrication channel 1215 located in the sliding hole 1211 is located at one end of the annular seal 122 away from the first cavity 112.

[0060] When the density guide assembly further includes a first dust seal 124 and a second dust seal 125 , the opening of one end of the lubrication passage 1215 located in the passage is located between the second dust seal 125 and the annular seal 122 .

[0061] During the pumping operation, the lubricating coolant in the second cavity 113 will enter the sliding hole 1211 through the lubrication channel 1215 under the sliding action of the piston rod of the master cylinder 300, and have a rectangular lubrication and cooling effect with the piston rod of the master cylinder 300, so as to reduce the probability of wear of the piston rod of the master cylinder 300 during operation, and further extend the service life of the master cylinder 300.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pumping water tank structure, characterized in that: It includes a water tank body and a sealing guide assembly; A partition is provided in the water tank body to separate the space in the water tank body into a first cavity and a second cavity which are independent of each other; a first mounting hole communicating with the first cavity and the second cavity is provided on the partition; a second mounting hole communicating with the first cavity and a third mounting hole communicating with the second cavity are respectively provided at both ends of the water tank body; the second mounting hole and the third mounting hole are respectively used to seal and communicate with one end of the cylinder body of the concrete cylinder and one end of the cylinder body of the main oil cylinder; The sealing guide assembly is detachably and sealingly mounted in the first mounting hole, and has a sealing guide channel communicating with the first cavity and the second cavity; the sealing guide channel is used for sealing contact with the piston rod of the master cylinder.

2. The pumping water tank structure according to claim 1, characterized in that: The water tank body includes a tank body and a tank cover; the tank body includes a bottom plate and a side plate arranged along the circumference of the bottom plate and connected to the bottom plate; the tank cover is detachably arranged at one end of the side plate away from the bottom plate to cover the opening of the tank body.

3. The pumping water tank structure according to claim 2, characterized in that: The side panel includes a first split panel, a second split panel, a third split panel and a fourth split panel; the first split panel and the second split panel are spaced apart on the bottom panel and fixedly connected to the bottom panel; the third split panel and the fourth split panel are spaced apart in a direction perpendicular to the spacing direction of the first split panel and the second split panel; The water tank body also includes a pull rod; the pull rod is detachably connected to the third sub-plate and the fourth sub-plate in sequence to clamp the bottom plate, the first sub-plate and the second sub-plate between the third sub-plate and the fourth sub-plate.

4. The pumping water tank structure according to claim 2, characterized in that: A first observation hole communicating with the first cavity and a second observation hole communicating with the second cavity are respectively formed at one end of the side plate away from the bottom plate; and / or The bottom plate is provided with a drainage hole communicating with the first cavity and a liquid drainage hole communicating with the second cavity respectively; the drainage hole and the liquid drainage hole can be selectively closed or opened.

5. The pumping water tank structure according to claim 1, characterized in that: The sealing guide assembly includes a sealing seat and an annular seal; the sealing seat is detachably mounted on the first mounting hole and is formed with a sliding hole serving as a sealing guide channel; a sealing groove is circumferentially formed on the inner wall of the sliding hole; the annular seal is arranged in the groove, and the inner wall of the annular seal is used for sealing contact with the piston rod of the master cylinder.

6. The pumping water tank structure according to claim 5, characterized in that: One end of the sealing seat is located outside the first mounting hole, and is sealed and abutted against the side surface of the partition located on one side of the first cavity or the second cavity; the sealing groove is located at the edge of one end of the sliding hole in the first mounting hole; The sealing guide assembly also includes a sealing cover; the sealing cover is detachably connected to one end of the sealing seat provided with the sealing groove so as to press the annular seal into the sealing groove; the sealing seat and the side of the partition located on one side of the second cavity or the first cavity are sealed and abutted; a through hole is formed on the sealing cover that is connected to the sliding hole and is coaxially arranged.

7. The pumping water tank structure according to claim 6, characterized in that: A first dustproof groove is formed on the inner wall of the through hole at an edge position close to one end of the sliding hole along the circumference of the through hole; a second dustproof groove is formed on the inner wall of the sliding hole at one end away from the sealing cover along the circumference of the sliding hole; a first dustproof ring and a second dustproof ring are respectively arranged in the first dustproof groove and the second dustproof groove, and the first dustproof ring is clamped between the first dustproof groove and the end face of the annular seal; the inner walls of the first dustproof ring and the second dustproof ring are both used for sealing contact with the piston rod of the master cylinder.

8. The pumping water tank structure according to claim 5, characterized in that: The inner wall of the sliding hole is provided with an annular groove along the circumferential direction; the sealing guide assembly also includes an elastic support ring arranged in the annular groove; the elastic support ring is used to be slidably mounted on the piston rod of the master cylinder.

9. The pumping water tank structure according to claim 5, characterized in that: One end of the sealing seat is located in the second cavity; a lubrication channel connecting the second cavity and the sliding hole is formed on the sealing seat; the opening of one end of the lubrication channel located in the sliding hole is located at the end of the annular seal away from the first cavity.

10. A pumping device, characterized in that: It comprises a pumping water tank structure, a main oil cylinder and a concrete cylinder as described in any one of claims 1 to 9; the cylinder body of the concrete cylinder is mounted at one end of the water tank body, and is sealed and connected to the first mounting hole; one end of the piston rod of the concrete cylinder extends into the first cavity; the cylinder body of the main oil cylinder is mounted at the other end of the water tank body, and is sealed to the inner wall of the second mounting hole; one end of the piston rod of the main oil cylinder passes through the second cavity and the sealed guide channel in sequence, and is drivingly connected to the piston rod of the concrete cylinder.

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