Collaborative lifting device for pontoons

Abstract

The utility model provides a kind of float box cooperative lifting device.The float box cooperative lifting device includes sliding device, at least two float boxes connected on sliding device, at least one telescopic member is connected between the at least two float boxes, the telescopic member includes first telescopic section, second telescopic section, third telescopic section and spring, the second telescopic section, first telescopic section and third telescopic section are sequentially sleeved, the spring is located in the inside of second telescopic section, first telescopic section and third telescopic section and connects third telescopic section and second telescopic section;The spring is in initial position, the second telescopic section, first telescopic section and third telescopic section relatively extend to maximum stroke;The end of the third telescopic section away from first telescopic section is connected with a float box;The end of the second telescopic section away from first telescopic section is connected with another float box or the second telescopic section of another telescopic member.The utility model has the characteristics of wade application, high load-bearing capacity etc.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a floating box coordinated lifting device. Background Technology

[0002] In the field of hydraulic engineering, pontoon boxes are frequently used to construct various functional structures, such as temporary water-retaining facilities, floating operation platforms, and floating islands for ecological restoration. These pontoon boxes need to be raised and lowered in coordination according to different water level changes, water flow impact forces, and specific functional requirements of the project to ensure the safe and stable operation of the hydraulic engineering project and the achievement of its intended functions. Therefore, a highly adaptable and reliable pontoon box coordinated raising and lowering device is needed to meet the various needs of the project.

[0003] Currently, common floating box lifting devices in water conservancy projects include hydraulic linkage lifting devices, rope traction lifting devices, and gear and rack transmission lifting devices.

[0004] The hydraulic linkage lifting device mainly consists of a hydraulic station, hydraulic cylinder assembly, hydraulic pipelines, and a control system. The hydraulic station outputs high-pressure hydraulic oil, which is distributed to each hydraulic cylinder via the hydraulic pipelines. The control system adjusts the flow direction and pressure of the hydraulic oil to achieve synchronized extension and retraction of multiple hydraulic cylinders, thereby driving the floats to rise and fall in tandem. This device has the advantages of large lifting force and relatively smooth operation, and can meet the lifting and control needs of large-scale floats.

[0005] The rope-driven lifting device uses an electric motor to drive a winch. One end of the rope is wound around the winch, and the other end is connected to the pontoon. The rope is evenly distributed at multiple connection points on the pontoon. By retracting and extending the rope through the forward and reverse rotation of the winch, the pontoon is raised and lowered. This device has a relatively simple structure, is easy to install, and is commonly used in pontoon applications in some small and medium-sized water conservancy projects.

[0006] The rack and pinion lifting device mainly consists of a motor, a reducer, gears, and a rack connected to the pontoon. The motor and reducer work together to drive the gears to rotate. The gears mesh with the rack fixed to the side or bottom of the pontoon, converting the motor's rotational motion into the rack's linear motion, thus propelling the pontoon up and down along the rack's direction. This device has high transmission efficiency and can achieve relatively precise position control, making it suitable for hydraulic engineering projects with strict requirements for pontoon lifting accuracy.

[0007] However, the existing floating box lifting devices have revealed the following shortcomings in actual water conservancy engineering applications:

[0008] In humid, muddy environments, the seals of hydraulic lifting devices are prone to aging and damage, leading to hydraulic oil leaks, affecting the normal operation of the device, and potentially polluting surrounding water bodies. Furthermore, troubleshooting and repairing hydraulic systems is difficult, resulting in high maintenance costs and long repair cycles.

[0009] The ropes of rope-driven lifting devices are prone to wear, corrosion, and reduced strength after being submerged in water for extended periods and subjected to water flow impacts and sun exposure. Furthermore, the accuracy of rope traction is limited, making it difficult to meet the demands of high-precision pontoon lifting control, and resulting in poor working efficiency under high water level and amplitude variation conditions.

[0010] Gear and rack transmission lifting devices are prone to being adhered to by impurities and microorganisms in the water, which accelerates tooth surface wear and affects transmission accuracy and efficiency. Furthermore, this device requires high installation precision and is susceptible to malfunctions such as tooth jamming and tooth dislodgement during operation, leading to obstructed pontoon lifting and affecting normal use. Utility Model Content

[0011] The purpose of this utility model is to provide a floating box coordinated lifting device, which has the characteristics of being applicable in water and having high load-bearing capacity.

[0012] The technical solution of this utility model is: a float-coordinated lifting device, comprising a sliding device and at least two floats connected to the sliding device, wherein at least one telescopic member is connected between the at least two floats, and the telescopic member comprises a first telescopic joint, a second telescopic joint, a third telescopic joint, and a spring, wherein the second telescopic joint, the first telescopic joint, and the third telescopic joint are sequentially sleeved, and the spring is located inside the second telescopic joint, the first telescopic joint, and the third telescopic joint and connects the third telescopic joint and the second telescopic joint; when the spring is in the initial position, the second telescopic joint, the first telescopic joint, and the third telescopic joint are extended to their maximum stroke relative to each other; the end of the third telescopic joint away from the first telescopic joint is connected to one float; the end of the second telescopic joint away from the first telescopic joint is connected to the second telescopic joint of another float or another telescopic member.

[0013] In the above scheme, a multi-stage telescopic structure is formed by designing the first telescopic joint, the second telescopic joint, and the third telescopic joint to be nested in sequence, and connected by springs. The elastic force of the springs is used to realize the coordinated lifting and lowering of the pontoon. The telescopic resistance can be achieved by selecting different springs with different physical properties. The operation is simple and features water-resistant applications and high load-bearing capacity.

[0014] Preferably, the first telescopic joint includes a first cylinder, a first latch disposed at one end of the first cylinder, and a second latch disposed at the other end of the first cylinder;

[0015] The second expansion joint includes a second cylinder, a first flange plate disposed at one end of the second cylinder, and a third latch disposed at the other end of the second cylinder;

[0016] The third expansion joint includes a third cylinder, a second flange plate disposed at one end of the third cylinder, and a fourth latch disposed at the other end of the third cylinder;

[0017] When the spring is in its initial position, the third latch is engaged with the first latch, and the second latch is engaged with the fourth latch; the second flange plate is connected to a pontoon; and the first flange plate is connected to a first flange plate on another pontoon or another telescopic component.

[0018] Preferably, the first latch extends radially away from the axis of the first cylinder, the second latch extends radially towards the axis of the first cylinder, the third latch extends radially towards the axis of the second cylinder, and the fourth latch extends radially away from the axis of the third cylinder.

[0019] Preferably, both the fourth latch and the first latch have sealing rings on their outer surfaces; when the spring is in its initial position, the sealing ring on the first latch abuts against the third latch, and the sealing ring on the fourth latch abuts against the second latch.

[0020] Preferably, both the first flange plate and the second flange plate are provided with multiple screw holes, and bolts are installed in the screw holes to connect the expansion joint to the pontoon or another expansion joint.

[0021] Preferably, the first cylinder, the second cylinder, and the third cylinder are all cylindrical.

[0022] Preferably, the inner bottom surface of the second telescopic joint and the inner bottom surface of the third telescopic joint are provided with pads, and the spring is connected to the pads.

[0023] Preferably, the pad is made of epoxy resin.

[0024] Preferably, the sliding device includes a slide rail with a groove and a slider connected to one side of the float, the slider being adapted to the groove, and the slide rail being vertically disposed between at least two of the floats.

[0025] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0026] I. This utility model forms a multi-stage telescopic structure by designing a first telescopic joint, a second telescopic joint, and a third telescopic joint that are sequentially nested together and connected by springs. The spring force is used to achieve coordinated lifting and lowering of the float, and the telescopic resistance can be achieved by selecting different springs with different physical properties. It is simple to operate and has the characteristics of being suitable for wading applications and having high load-bearing capacity.

[0027] II. This utility model has a simple structure, is safe and reliable, has a high load-bearing capacity, and is flexible in operation, which can meet the application scenarios of high load and large adjustment.

[0028] Third, this utility model can connect an appropriate number of telescopic parts according to actual needs to perform multi-body assembly and meet various application scenarios.

[0029] Fourth, the sealing ring in this utility model not only serves a sealing function and can be used in water wading, but also acts as a buffer pad to reduce metal wear between the cylinders when the expansion joint is displaced. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the float box coordinated lifting device provided by this utility model;

[0031] Figure 2 This is a structural schematic diagram of the expansion joint;

[0032] Figure 3 This is a schematic diagram showing two telescopic components connected together.

[0033] In the attached diagram: 1. First expansion joint; 101. First cylinder; 102. First latch; 103. Second latch; 2. Second expansion joint; 21. Second cylinder; 22. First flange plate; 23. Third latch; 3. Third expansion joint; 31. Third cylinder; 32. Second flange plate; 33. Fourth latch; 4. Spring; 5. Pad; 6. Sealing ring; 7. Screw hole; 8. Bolt; 9. Float box; 10. Slide rail; 11. Slide groove; 12. Slider; 13. Sliding device; 14. Expansion joint. Detailed Implementation

[0034] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0035] like Figure 1 As shown, the float-coordinated lifting device provided in this embodiment includes a sliding device 13, at least two floats 9 connected to the sliding device 13, and at least one telescopic member 14 connecting the at least two floats 9. Figure 2 As shown, the telescopic component 14 includes a first telescopic joint 1, a second telescopic joint 2, a third telescopic joint 3, a spring 4, a pad 5, a sealing ring 6, a screw hole 7, and a bolt 8.

[0036] The second telescopic joint 2, the first telescopic joint 1, and the third telescopic joint 3 are sequentially sleeved together, and the spring 4 is located inside the second telescopic joint 2, the first telescopic joint 1, and the third telescopic joint 3 and connects the third telescopic joint 3 and the second telescopic joint 2.

[0037] The first telescopic joint 1 includes a first cylindrical body 101, a first latch 102 disposed at one end of the first cylindrical body 101, and a second latch 103 disposed at the other end of the first cylindrical body 101. The first latch 102 extends radially away from the axis of the first cylindrical body 101. The second latch 103 extends radially toward the axis of the first cylindrical body 101.

[0038] The second expansion joint 2 includes a second cylindrical body 21, a first flange plate 22 disposed at one end of the second cylindrical body 21, and a third latch 23 disposed at the other end of the second cylindrical body 21. The third latch 23 extends radially toward the axis of the second cylindrical body 21.

[0039] The third expansion joint 3 includes a third cylindrical body 31, a second flange plate 32 located at one end of the third cylindrical body 31, and a fourth locking buckle 33 located at the other end of the third cylindrical body 31. The fourth locking buckle 33 extends radially away from the axis of the third cylindrical body 31. Sealing rings 6 are provided on the outer surfaces of both the fourth locking buckle 33 and the first locking buckle 102. The first cylindrical body 101, the second cylindrical body 21, and the third cylindrical body 31 are all cylindrical.

[0040] When the spring 4 is in its initial position, the second telescopic joint 2, the first telescopic joint 1, and the third telescopic joint 3 extend to their maximum stroke relative to each other. At this time, the third latch 23 is engaged with the first latch 102, and the sealing ring 6 on the first latch 102 abuts against the third latch 23; the second latch 103 is engaged with the fourth latch 33; and the sealing ring 6 of the fourth latch 33 abuts against the second latch 103.

[0041] The spring 4 is made of a high-strength, high-elasticity, corrosion-resistant metal (such as 3J21 corrosion-resistant high-elasticity alloy), providing axial tension for the expansion joint. The first expansion joint 1, the second expansion joint 2, and the third expansion joint 3 are made of high-strength, corrosion-resistant metal (such as stainless steel). The sealing ring 6 is made of a high-strength, anti-aging sealing compound (such as high-strength silicone sealant), serving a sealing function and also acting as a buffer to reduce metal wear between the cylinders when the expansion joint shifts.

[0042] Both the first flange plate 22 and the second flange plate 32 are provided with multiple screw holes 7, and bolts 8 are installed in the screw holes 7. The second flange plate 32 is connected to a floating box 9 by the bolts 8 (e.g., Figure 1 (as shown); the first flange plate 22 is connected to the first flange plate 22 on another pontoon 9 or another telescopic member 14 by the bolts 8 (as shown). Figure 3 (As shown).

[0043] Both the inner bottom surface of the second expansion joint 2 and the inner bottom surface of the third expansion joint 3 are provided with pads 5, and the spring 4 is connected to the pads 5. The pads 5 are made of anti-aging colloids such as epoxy resin, which can distribute the axial force of the spring 4 to the first flange plate 22 and the second flange plate 32, reducing metal wear.

[0044] like Figure 1 As shown, the sliding device 13 includes a slide rail 10 with a slide groove 11 and a slider 12 connected to one side of the float 9. The slider 12 is adapted to the slide groove 11, and the slide rail 10 is vertically arranged between at least two floats 9.

[0045] Example

[0046] This embodiment relies on a reservoir on the upper reaches of a river. A tiered water intake system is constructed upstream of the power station's intake. This system requires vertical adjustment according to changes in the reservoir's water level. The tiered water intake system is adjusted by pre-installing multiple sets of pontoons 9 on vertical slide rails 10 and a pontoon-coordinated lifting device. The multiple sets of pontoons 9 are connected at different positions along the height of the waterproof curtain. The pontoon-coordinated lifting device is vertically connected between every two adjacent pontoons 9, enabling coordinated lifting and lowering of multiple devices to avoid concentrated stacking of equipment, which would affect the normal operation of the tiered water intake system.

[0047] Numerical simulation analysis shows that the maximum load that the floating box lifting device can withstand is approximately 95t, and the maximum flow velocity is approximately 1.7m / s. Based on reservoir operation analysis, the floating box lifting device can meet the requirements of a 60m water level fluctuation without affecting the normal operation of the stratified water intake system.

[0048] The floating box coordinated lifting device of this utility model can withstand high loads and can be flexibly adjusted, which has significant promotional value.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pontoon coordinated lifting device comprising a sliding device (13), at least two pontoons (9) connected to the sliding device (13), characterized in that, At least one telescopic member (14) is connected between at least two of the floats (9). The telescopic member (14) includes a first telescopic joint (1), a second telescopic joint (2), a third telescopic joint (3), and a spring (4). The second telescopic joint (2), the first telescopic joint (1), and the third telescopic joint (3) are sequentially sleeved together. The spring (4) is located inside the second telescopic joint (2), the first telescopic joint (1), and the third telescopic joint (3) and connects the third telescopic joint (3) and the second telescopic joint (2). When the spring (4) is in its initial position, the second telescopic joint (2), the first telescopic joint (1), and the third telescopic joint (3) are extended to their maximum stroke relative to each other. The end of the third telescopic joint (3) away from the first telescopic joint (1) is connected to one float (9). The end of the second telescopic joint (2) away from the first telescopic joint (1) is connected to the second telescopic joint (2) of another float (9) or another telescopic member (14).

2. The floating box coordinated lifting device according to claim 1, characterized in that, The first telescopic joint (1) includes a first cylindrical body (101), a first latch (102) disposed at one end of the first cylindrical body (101), and a second latch (103) disposed at the other end of the first cylindrical body (101); The second expansion joint (2) includes a second cylinder (21), a first flange plate (22) disposed at one end of the second cylinder (21), and a third latch (23) disposed at the other end of the second cylinder (21); The third expansion joint (3) includes a third cylinder (31), a second flange plate (32) provided at one end of the third cylinder (31), and a fourth latch (33) provided at the other end of the third cylinder (31); When the spring (4) is in its initial position, the third latch (23) is engaged with the first latch (102), and the second latch (103) is engaged with the fourth latch (33); the second flange plate (32) is connected to a float (9); and the first flange plate (22) is connected to the first flange plate (22) on another float (9) or another telescopic member (14).

3. The floating box coordinated lifting device according to claim 2, characterized in that, The first latch (102) extends radially away from the axis of the first cylinder (101), the second latch (103) extends radially toward the axis of the first cylinder (101), the third latch (23) extends radially toward the axis of the second cylinder (21), and the fourth latch (33) extends radially away from the axis of the third cylinder (31).

4. The floating box coordinated lifting device according to claim 2, characterized in that, Both the fourth latch (33) and the first latch (102) are provided with sealing rings (6) on their outer surfaces; when the spring (4) is in its initial position, the sealing ring (6) on the first latch (102) abuts against the third latch (23), and the sealing ring (6) on the fourth latch (33) abuts against the second latch (103).

5. The floating box coordinated lifting device according to claim 2, characterized in that, The first flange plate (22) and the second flange plate (32) are each provided with a plurality of screw holes (7), and bolts (8) are installed in the screw holes (7) to connect the telescopic member (14) to the pontoon (9) or another telescopic member (14).

6. The floating box coordinated lifting device according to claim 2, characterized in that, The first cylinder (101), the second cylinder (21) and the third cylinder (31) are all cylindrical.

7. The floating box coordinated lifting device according to claim 1, characterized in that, The inner bottom surface of the second telescopic joint (2) and the inner bottom surface of the third telescopic joint (3) are both provided with pads (5), and the spring (4) is connected to the pads (5).

8. The floating box coordinated lifting device according to claim 7, characterized in that, The pad (5) is made of epoxy resin.

9. The floating box coordinated lifting device according to claim 1, characterized in that, The sliding device (13) includes a slide rail (10) with a slide groove (11) and a slider (12) connected to one side of the float (9). The slider (12) is adapted to the slide groove (11), and the slide rail (10) is vertically arranged between at least two floats (9).

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