Hydraulic floating suspension system for upright containers

Abstract

The application discloses a kind of hydraulic floating suspension systems of vertical container, comprising: lifting cylinder, hanger, locking piece, lifting cylinder has multiple and is evenly distributed on the same circumference with the axis of the suspended container as center line, lifting cylinder includes: cylinder body, piston, limit plate, cylinder body is installed to steel structure and is opened with oil cavity, piston is slidably arranged in oil cavity, limit plate is arranged at the lower end of cylinder body, hanger has upper connecting end and lower connecting end, upper connecting end is connected with piston, lower connecting end is connected with the suspended container, locking piece is adjustably screwed along vertical position in upper connecting end, locking piece is arranged above limit plate, limit plate is used to limit the lower limit position of locking piece.In use, first by crane the suspended container is lifted to preset position, then by the lower connecting end of hanger the suspended container is connected, remove crane, the position of the suspended container is adjusted by the up-and-down movement of piston, so that the suspended container is connected to the container connected to steel structure.

Description

TECHNICAL FIELD

[0001] The present application relates to a hoisting device of a large vertical container, in particular to a hydraulic floating suspension system of a vertical container. BACKGROUND

[0002] At present, in the field of power, petroleum, chemical industry and the like, a large vertical container is generally produced in sections and modules in a factory, and then transported to a site for hoisting and splicing, so as to form an overall container structure, due to the relatively large volume.

[0003] Taking a two-section structure vertical container as an example, first, a steel structure needs to be built at a construction site, the upper container is fixedly connected to the steel structure, and then a crane is used to hoist the lower container until the lower container is connected to the upper container, and then the upper and lower containers are welded.

[0004] The above construction method has the following problems:

[0005] (1) Since the hoisting and splicing process of the large container is relatively slow, a large crane needs to be rented for a long time, and the rental cost of the large crane is relatively high, resulting in a substantial increase in construction cost;

[0006] (2) The distance between the operator of the large crane and the connection port of the lower container and the upper container is far, and the difficulty coefficient of the operator in adjusting the lower container to the accurate connection position by operating the large crane is high, that is, it is difficult to achieve accurate connection by hoisting and splicing, and it is difficult to meet the welding requirements of the container;

[0007] (3) Due to the limitation of construction conditions, the height of the connection position of the container in the connection process may be deviated, and the large crane can only make the suspended container move upward or downward as a whole, and it is difficult to adjust the yaw of the container in the axial direction. SUMMARY

[0008] The present application provides a hydraulic floating suspension system of a vertical container, which solves the possible problems in the hoisting and splicing of a large vertical container by a crane.

[0009] The present application provides a hydraulic floating suspension system of a vertical container, which includes:

[0010] The lifting cylinders are arranged on the same circumference with the axis of the suspended container as the center line, and each lifting cylinder includes:

[0011] The cylinder body is arranged on the steel structure, and the cylinder body is provided with an oil cavity;

[0012] The piston is arranged in the oil cavity in a vertical sliding manner;

[0013] The limiting plate is arranged at the lower end of the cylinder body.

[0014] a hanging connecting piece, having an upper connecting end and a lower connecting end, the upper connecting end being connected with the piston, and the lower connecting end being connected with the suspended container;

[0015] a locking piece, being threadedly connected with the upper connecting end in a vertically adjustable manner, the locking piece being arranged above the limiting plate, the limiting plate being used for limiting the lower limit position of the locking piece.

[0016] The hydraulic floating suspension system of the vertical container in use first lifts the suspended container to a preset position by a crane, then connects the suspended container through the lower connecting end of the hanging connecting piece, removes the crane, and adjusts the height position of the suspended container through the up-and-down movement of the piston, so as to butt joint the suspended container with the upper half container connected with the steel structure.

[0017] The above embodiment has the following beneficial effects:

[0018] (1) The lifting cylinders are arranged around the suspended container, and the up-and-down displacement of the piston is controlled by hydraulic oil, so that the container can be accurately and stably lifted;

[0019] (2) Each lifting cylinder can realize the function of independent lifting, so that the swing angle of the suspended container can be adjusted, and the butt joint accuracy can be improved;

[0020] (3) Only the crane is needed to lift the suspended container to a suitable position in the early stage, and the container does not need to be lifted to an accurate position, so that the use time of the crane is greatly reduced, and the construction cost is reduced.

[0021] On the basis of the above embodiment, the embodiment of the present application can also be improved as follows:

[0022] In one embodiment of the present application: the hanging connecting piece is a constant force spring, the upper hanging rod of the constant force spring is the upper connecting end, and the lower hanging rod of the constant force spring is the lower connecting end. The beneficial effect of this step is that the influence of thermal expansion of the container can be reduced by the constant force spring.

[0023] In one embodiment of the present application: the lifting cylinder further comprises: a lifting piece, the upper end of the lifting piece having a limiting part, and the lower end of the lifting piece having a connecting part, the lifting piece being slidingly inserted into the hole body A vertically arranged in the piston, the connecting part being threadedly connected with the adjusting hole vertically arranged in the upper connecting end, and the limiting part being arranged above the piston and being used for limiting the lower limit position of the lifting piece. The beneficial effect of this step is that the piston can be lifted multiple times through the lifting piece, so that the maximum lifting distance of the lifting cylinder for lifting the container is increased.

[0024] In one of the embodiments of the present application: the locking piece is provided with a plurality of holes B which are arranged at intervals on the outer side of the locking piece, the holes B are blind holes, the lifting cylinder is provided with a hole C, and the hole C is a through hole.

[0025] In one of the embodiments of the present application: further comprising: a pad, each of the pads is arranged below the limiting plate, the upper end of each of the pads is provided with an arc-shaped supporting surface which is used to contact the limiting plate, and each of the pads is vertically provided with a hole D through which the upper connecting end passes. The beneficial effect of this step is that the arc-shaped supporting surface cooperates with the hole D to enable the lifting cylinder to be deflected relative to the steel structure, thereby preventing the upper connecting end from being bent.

[0026] In one of the embodiments of the present application: further comprising: a hydraulic system which is connected with the lifting cylinder and is used to control the amount of oil in the oil cavity.

[0027] The hydraulic system comprises an oil tank, an oil pump motor set, a three-position four-way reversing valve, a bidirectional hydraulic lock, a stop valve A and a stop valve B, the oil pump motor set is connected with the oil tank and the three-position four-way reversing valve respectively, the three-position four-way reversing valve is further connected with the bidirectional hydraulic lock, the bidirectional hydraulic lock is connected with an oil inlet of the cylinder body through the stop valve A and connected with the oil tank through the stop valve B. The beneficial effect of this step is that the three-position four-way reversing valve can realize the functions of piston ascending, stopping and descending, and when the piston remains stationary, the one-way valve structure in the bidirectional hydraulic lock prevents the hydraulic oil from flowing back, thereby improving the stability of the piston positioning.

[0028] In one of the embodiments of the present application: the oil port A0 of the three-position four-way reversing valve is connected with the oil port A1 of the bidirectional hydraulic lock, the oil port B0 of the three-position four-way reversing valve is connected with the oil port A2 of the bidirectional hydraulic lock, the oil port B1 of the bidirectional hydraulic lock is connected with the stop valve A and the stop valve B respectively, and the oil port B2 of the bidirectional hydraulic lock is closed.

[0029] In one of the embodiments of the present application: further comprising: a three-way pipe, each of the stop valves A is connected with one of the three-way pipes, the three-way pipes are connected in series with each other, and one of the three-way pipes is connected with the bidirectional hydraulic lock and the oil tank. The beneficial effect of this step is that the three-way pipes are connected to form a parallel structure between the lifting cylinders, thereby ensuring the synchronization of the piston movement.

[0030] In one of the embodiments of the present application: further comprising: a one-way throttling valve, two one-way throttling valves are arranged in reverse series between the bidirectional hydraulic lock and the stop valve A. The beneficial effect of this step is that the one-way throttling valve can control the speed of the piston ascending or descending.

[0031] In one of the embodiments of the present application: further comprising: a pressure regulating valve, which is arranged between the oil pump motor set and the three-position four-way reversing valve. The beneficial effect of this step: through the pressure regulating valve, the oil pressure in the oil circuit can be adjusted, so as to adapt to different load requirements. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0033] Figure 1 Structure schematic diagram of specific embodiments;

[0034] Figure 2 Structure schematic diagram of hydraulic system and arrangement structure schematic diagram of lifting cylinder;

[0035] Figure 3 Enlarged structure schematic diagram of hydraulic system.

[0036] 1, lifting cylinder, 101, cylinder body, 102, piston, 103, limit plate, 104, oil cavity, 105, cylinder sleeve, 106, upper cover, 107, lower cover, 108, support pipe, 109, lifting piece, 110, limit part, 111, connecting part, 112, hole body C, 113, oil inlet;

[0037] 2, locking piece, 201, hole body B;

[0038] 3, upper connecting end;

[0039] 4, steel structure, 401, hole body E;

[0040] 5, cushion block, 501, support surface, 502, hole body D;

[0041] 6, hydraulic system, 601, oil tank, 602, oil pump motor set, 603, three-position four-way reversing valve, 604, bidirectional hydraulic lock, 605, stop valve A, 606, stop valve B, 607, three-way, 608, one-way throttle valve, 609, pressure regulating valve, 610, shockproof pressure gauge. DETAILED DESCRIPTION

[0042] In this application, unless otherwise explicitly specified and limited, terms such as installation, connection, linking, fixing, and fastening should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, in which appropriate connection methods can be selected from existing technologies, such as welding, riveting, threaded connection, bonding, pin connection, key connection, elastic deformation connection, snap-fit ​​connection, interference fit connection, and injection molding to achieve structural connection; they can also refer to an electrical connection, transmitting energy or signals electrically; they can refer to a direct connection or an indirect connection through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. Specific Implementation

[0044] like Figure 1 As shown, a hydraulic floating suspension system for a vertical container includes: a lifting cylinder 1, a lifting connector, and a locking component 2. Multiple lifting cylinders 1 are evenly distributed on the same circumference with the axis of the suspended container as the center line. The lifting cylinders 1 are mounted on a steel structure 4. Each lifting cylinder 1 includes: a cylinder body 101, a piston 102, and a limiting plate 103. The cylinder body 101 is mounted on the steel structure 4, and an oil chamber 104 is opened in the upper end of the cylinder body 101. The piston 102 is vertically slidably disposed in the oil chamber 104. The limiting plate 103 is disposed at the lower end of the cylinder body 101 and closes the lower end of the cylinder body 101. The lifting connector has an upper connecting end 3 and a lower connecting end. The upper connecting end 3 is connected to the piston 102, and the lower connecting end is connected to the suspended container. The locking component 2 is vertically adjustable and threadedly connected to the upper connecting end 3. The locking component 2 is disposed above the limiting plate 103, which restricts the lower limit position of the locking component 2.

[0045] like Figure 1 As shown, the cylinder body 101 includes: cylinder liner 105, upper cover 106, and lower cover 107. The upper cover 106 is connected to the upper end of the cylinder liner 105, and the lower cover 107 is connected to the lower end of the cylinder liner 105. The cylinder liner 105, upper cover 106, and lower cover 107 surround and form an oil chamber 104. The lifting cylinder 1 also includes: a support pipe 108. The support pipe 108 is connected to the lower end of the lower cover 107. The lower end of the support pipe 108 is connected to the limiting plate 103. The support pipe 108 is used to lift the cylinder body 101 to a certain height, so as to facilitate the installation of a locking member 2 and an upper connecting end 3 below the lower cylinder body 101.

[0046] The lifting component is a constant force spring. The upper lifting rod of the constant force spring is the upper connecting end 3, and the lower lifting rod of the constant force spring is the lower connecting end. By setting a constant force spring, the impact of thermal expansion on large containers is reduced.

[0047] like Figure 1As shown, the lifting cylinder 1 further comprises a lifting piece 109, the upper end of the lifting piece 109 is provided with a limiting portion 110, and the lower end is provided with a connecting portion 111, the lifting piece 109 is slidingly inserted into the hole body A vertically formed in the piston 102, the connecting portion 111 is vertically screwed into the adjusting hole formed in the upper connecting end 3, and the limiting portion 110 is arranged above the piston 102 and is used to limit the lower limit position of the lifting piece 109. Specifically, the lifting piece 109 is a hexagonal head bolt, the limiting portion 110 is the hexagonal head of the bolt, and the connecting portion 111 is the threaded end of the bolt.

[0048] The purpose of arranging the lifting piece 109 is that, generally, when the suspended container is lifted by the crane, the crane will stop moving when the suspended container is lifted to a position about 20-30 mm below the docking position, and then the suspended container will be lifted by the constant force spring and the lifting cylinder 1. However, the precision of the crane is poor when lifting, and the suspended container may also be inclined, so that one side is far away from the docking position. At this time, the maximum height of the single lifting of the piston 102 cannot meet the height of the docking of the suspended container and the upper container. Therefore, the lifting piece 109 is arranged. When the piston 102 is lifted to the maximum height, the locking piece 2 is rotated to make the locking piece 2 contact the limiting plate 103 again, so as to fix the position of the upper connecting end 3, open the stop valve 606, and the piston 102 falls to the initial position under the action of gravity. At this time, the limiting portion 110 is separated from the piston 102, the lifting piece 109 is rotated downward, and the lifting piece 109 moves downward to the position where the limiting portion 110 contacts the piston 102, so that the oil cavity 104 can be filled with oil again, and the upper connecting end 3 is driven upward by the piston 102 again. Therefore, the lifting piece 109 can realize the function of lifting the suspended container multiple times, expand the lifting operation range of the lifting cylinder 1, and facilitate accurate docking of the upper and lower containers.

[0049] As shown in Figure 1 The outer side of the locking piece 2 is provided with a plurality of hole bodies B201 arranged at intervals, the hole body B201 is a blind hole, the supporting pipe 108 is provided with a hole body C112, the hole body C112 is a through hole, and specifically, the locking piece 2 is a locking nut, the six side surfaces of the outer periphery of the locking nut are provided with the hole body B201. In actual use, the tool is inserted into the hole body B201 after passing through the hole body C112, the locking piece 2 is displaced up and down on the upper connecting end 3 by rotating the tool, and the locking piece 2 is displaced up and down on the upper connecting end 3.

[0050] As shown in Figure 1As shown, the hydraulic floating suspension system of the upright container further comprises: a cushion block 5, each cushion block 5 is arranged below the limiting plate 103, the upper end of the cushion block 5 is provided with a circular arc-shaped supporting surface 501 for contacting the limiting plate 103, the cushion block 5 is vertically provided with a hole body D502 for the upper connecting end 3 to pass through, specifically, the steel structure 4 is provided with a hole body E401 with the same diameter or larger than the hole body D502, the inner diameter of the hole body D502 is larger than the outer diameter of the upper connecting end 3, i.e. the upper lifting rod, and there is a gap between the two, so that the upper lifting rod can be deflected in the hole body D502 and the hole body E401. Because the upper lifting rod may be deflected during actual use, if the diameter of the hole body D502 is too small, the upper lifting rod is likely to be bent, thereby causing the damage of the lifting connector. Therefore, the circular arc-shaped supporting surface 501 is arranged to cooperate with the hole body D502 and the hole body E401, so that an oscillating structure similar to a hinge is formed between the upper lifting rod and the cushion block 5.

[0051] As shown in Figure 2 , 3 , the hydraulic floating suspension system of the upright container further comprises: a hydraulic system 6, which is connected with the lifting cylinder 1 and is used to control the oil amount in the oil chamber 104, so as to control the movement direction of the piston 102 by the hydraulic system 6.

[0052] As shown in Figure 2 , 3 , the hydraulic system 6 comprises: an oil tank 601, an oil pump motor set 602, a three-position four-way reversing valve 603, a bidirectional hydraulic lock 604, a stop valve A 605, and a stop valve B 606. The oil pump motor set 602 is connected with the oil tank 601 and the three-position four-way reversing valve 603, respectively. The three-position four-way reversing valve 603 is further connected with the bidirectional hydraulic lock 604. The bidirectional hydraulic lock 604 is connected with the oil inlet 113 of the cylinder body 101 through the stop valve A 605 and is connected with the oil tank 601 through the stop valve B 606.

[0053] As shown in Figure 3 , specifically, as shown in the figure, the three-position four-way reversing valve 603 comprises an oil port P0, an oil port T0, an oil port A0, an oil port B0, a control end DT1, and a control end DT2. The oil port P0 is connected with the oil pump motor set 602, the oil port T0 is connected with the oil tank 601, the oil port A0 is connected with an oil port A1 of the bidirectional hydraulic lock 604, the oil port B0 is connected with an oil port A2 of the bidirectional hydraulic lock 604, an oil port B1 of the bidirectional hydraulic lock 604 is connected with the stop valve A 605 and the stop valve B 606, respectively, and an oil port B2 of the bidirectional hydraulic lock 604 is closed by a screw plug. The three-position four-way reversing valve 603 is controlled to change position by the control end DT1 and the control end DT2, so as to realize the functions of controlling the piston 102 to rise, stop, and descend.

[0054] As shown in Figure 2As shown, the hydraulic floating suspension system of the vertical container further comprises: three-ways 607, each of the stop valves A 605 is connected with a three-way 607, the three-ways 607 are connected in series with each other, one of the three-ways 607 is connected with the bidirectional hydraulic lock 604 and the oil tank 601 respectively, all the lifting cylinders 1 are connected in parallel through the three-ways 607 to make all the lifting cylinders 1 move synchronously.

[0055] As shown, Figure 3 As shown, the hydraulic floating suspension system of the vertical container further comprises: one-way throttles 608, the one-way throttles 608 are arranged between the bidirectional hydraulic lock 604 and the stop valves A 605, specifically, two one-way throttles 608 are arranged in series and opposite to each other between the bidirectional hydraulic lock 604 and the stop valves A 605, the speed of the piston 102 can be adjusted by adjusting the throttle.

[0056] As shown, Figure 3 As shown, the hydraulic floating suspension system of the vertical container further comprises: pressure regulating valves 609 and shockproof pressure gauges 610, the pressure regulating valves 609 and the shockproof pressure gauges 610 are arranged between the oil pump motor set 602 and the three-position four-way directional valve 603, the oil pressure in the oil circuit is displayed through the pressure gauges, and the oil pressure is adjusted through the pressure regulating valves 609 to meet the lifting requirements of the lifting cylinders 1 under different loads.

[0057] The working principle of the hydraulic system 6 is as follows: the oil pump motor set 602 pumps oil towards the three-position four-way directional valve 603, the stop valve A 605 is opened, and the stop valve B 606 is closed, when it is needed:

[0058] (1) When the piston 102 moves upwards, the control end DT1 of the three-position four-way directional valve 603 is electrified, so that the oil port P0 is communicated with the oil port A1, and the oil port T0 is communicated with the oil port B1, at this time, the hydraulic oil enters the oil cavity 104 of each lifting cylinder 1 through the oil circuit, realizing the function of driving the piston 102 to move upwards;

[0059] (2) When the piston 102 moves downwards, the control end DT2 of the three-position four-way directional valve 603 is electrified, so that the oil port T0 is communicated with the oil port A1, and the oil port P0 is communicated with the oil port B1, due to the oil pressure, the oil circuit on the side of the oil port A1 is conducted, so that the hydraulic oil returns to the oil tank 601 from the oil cavity 104 through the oil circuit, realizing the function of driving the piston 102 to descend;

[0060] (3) When the piston 102 is static, the control ends DT1 and DT2 are de-energized, so that the three-position four-way directional valve 603 switches to the middle position, because there is no oil pressure in the oil circuit on the side of the oil port B1, the oil circuit on the side of the oil port A1 is closed by the one-way valve structure, preventing the hydraulic oil from flowing back, so that the bidirectional hydraulic lock 604 maintains the stable pressure and improves the stability of the piston positioning.

[0061] The hydraulic floating suspension system of the upright container can realize synchronous lifting and asynchronous lifting functions in use, and the specific modes are as follows:

[0062] (1) Synchronous lifting function: all the stop valves A605 are opened, the oil pump motor set 602 is started, the stop valve B606 is closed, the one-way throttle valve 608 is opened, the control end DT1 of the three-position four-way electromagnetic valve is powered, the circumferentially arranged lifting cylinders 1 work synchronously, when the piston 102 is lifted to the maximum height, the locking member 2 is rotated to make the locking member 2 adhere to the limiting plate 103 again, the upper lifting rod is positioned by the locking member 2, the stop valve 606 is opened, the piston 102 falls to the initial position under the action of gravity, at this time, the limiting part 110 is separated from the piston 102, then the lifting member 109 is rotated again to make the limiting part 110 adhere to the upper end of the piston 102, so that the piston 102 can be driven to move upward again, until the suspended container is completely docked with the upper half of the container positioned on the steel structure 4, then the three-position four-way electromagnetic valve is switched to the middle position to make the piston 102 keep stable positioning;

[0063] (2) Asynchronous lifting function: if it is found that the docking position of the container has a height deviation during lifting, the stop valve A605 connected with the lifting cylinder 1 on the higher side can be closed, the lifting cylinder 1 connected with the closed stop valve A605 will stop working, the lifting cylinder 1 on the lower side continues to rise until the height is consistent, and then synchronous lifting is performed.

[0064] The hydraulic floating suspension system of the upright container has the following advantages in use:

[0065] (1) The structure mode of surrounding the suspended container with multiple lifting cylinders 1 is adopted, the lifting or falling of the piston 102 is controlled by hydraulic oil, so that the position of the suspended container can be accurately adjusted, and the accuracy and stability of the docking position are ensured;

[0066] (2) Each lifting cylinder 1 can realize the function of lifting and falling independently, so that the yaw angle of the suspended container can be adjusted, and the accuracy of the docking can be improved;

[0067] (3) The large crane equipment only needs to quickly lift the suspended container to a certain height, then connects the suspended equipment through the lifting connecting piece, and finally accurately lifts the suspended container through the suspension system in the embodiment, so that the use time of the large crane equipment is greatly shortened, the rental cost of the large crane equipment is reduced, and the construction cost of the whole project is reduced.

[0068] The above is only an embodiment of the present application, and the common knowledge of specific structures and characteristics in the scheme is not described in detail herein. The ordinary skilled person in the art knows all the ordinary technical knowledge in the field of the present application before the filing date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date. The ordinary skilled person in the art can perfect and implement the present scheme based on the disclosure given in the present application and in combination with their own ability. Some typical known structures or known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application. These will not affect the implementation effect and practicality of the patent.

Claims

1. A hydraulic floating suspension system for an upright container, characterized in that, include: Lifting cylinders, wherein there are multiple lifting cylinders arranged on the same circumference with the axis of the suspended container as the center line, the lifting cylinders include: A cylinder body, which is mounted on a steel structure, and has an oil chamber. A piston, which is vertically slidably disposed in the oil chamber; A limiting plate is disposed at the lower end of the cylinder body; A lifting connector having an upper connecting end and a lower connecting end, the upper connecting end being connected to the piston, and the lower connecting end being connected to the suspended container; A locking component is vertically adjustable and threaded to the upper connecting end. The locking component is positioned above the limiting plate, which limits the lower limit position of the locking component. The lifting cylinder further includes a lifting member, which has a limiting part at its upper end and a connecting part at its lower end. The lifting member is slidably inserted into the vertically opened hole A of the piston. The connecting part is vertically threaded to the adjusting hole opened at the upper connecting end. The limiting part is located above the piston and is used to limit the lower limit position of the lifting member. Each pad is disposed below the limiting plate. The upper end of the pad is provided with an arc-shaped support surface for contacting the limiting plate. The pad is provided with a hole D in the vertical direction for the upper connecting end to pass through.

2. The hydraulic floating suspension system for upright containers according to claim 1, characterized in that, The lifting component is a constant force spring, the upper lifting rod of the constant force spring is the upper connecting end, and the lower lifting rod of the constant force spring is the lower connecting end.

3. The hydraulic floating suspension system for upright containers according to claim 1, characterized in that, The locking component has several holes B spaced apart from each other on its outer perimeter. The holes B are blind holes. The lifting cylinder has a hole C, which is a through hole.

4. The hydraulic floating suspension system for upright containers according to claim 1, characterized in that, Also includes: A hydraulic system, which is connected to the lifting cylinder and is used to control the amount of oil in the oil chamber; The hydraulic system includes: an oil tank, an oil pump motor unit, a three-position four-way directional valve, a two-way hydraulic lock, a shut-off valve A, and a shut-off valve B. The oil pump motor unit is connected to the oil tank and the three-position four-way directional valves are connected to each other. The three-position four-way directional valves are also connected to the two-way hydraulic lock. The two-way hydraulic lock is connected to the oil inlet of the cylinder through the shut-off valve A and to the oil tank through the shut-off valve B.

5. The hydraulic floating suspension system for upright containers according to claim 4, characterized in that, The oil port A0 of the three-position four-way directional valve is connected to the oil port A1 of the bidirectional hydraulic lock, the oil port B0 of the three-position four-way directional valve is connected to the oil port A2 of the bidirectional hydraulic lock, the oil port B1 of the bidirectional hydraulic lock is connected to the shut-off valve A and the shut-off valve B respectively, and the oil port B2 of the bidirectional hydraulic lock is closed.

6. The hydraulic floating suspension system for upright containers according to claim 4, characterized in that, Also includes: Each of the shut-off valves A is connected to one of the three-way valves, which are connected in series with each other, and one of the three-way valves is connected to the bidirectional hydraulic lock and the oil tank.

7. The hydraulic floating suspension system for upright containers according to claim 4, characterized in that, Also includes: Two one-way throttle valves are connected in series in opposite directions between the two-way hydraulic lock and the shut-off valve A.

8. The hydraulic floating suspension system for upright containers according to claim 4, characterized in that, Also includes: A pressure regulating valve is disposed between the oil pump motor unit and the three-position four-way directional valve.

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