Full-automatic lifting platform adaptive to various tank truck heights

Abstract

The utility model discloses a kind of full-automatic lifting platform suitable for multiple tank car height, including descending drive mechanism, guiding support mechanism, lifting platform, up and down inclined ladder and bridging ladder step;The output end of lifting drive mechanism is connected with lifting platform, the guiding support mechanism is rolling connection with lifting platform, the up and down inclined ladder is respectively articulated with the lifting platform with bridging ladder step;The lifting drive mechanism includes lifting support, drive motor, turbine screw rod elevator and pressure sensor;Lifting drive mechanism provides power for integrated lifting platform in the scheme, guiding support mechanism provides orientation for lifting platform, simultaneously cooperate lifting drive mechanism to form for lifting drive mechanism stable support, guarantee the stability of lifting platform when using, up and down inclined ladder provides path for operating personnel up and down ladder step, bridging ladder step can quickly connect lifting platform and tank car, under the action of lifting platform, so that it can match different size, height tank car.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a fully automatic lifting platform that adapts to various tank truck heights. Background Technology

[0002] Steel trestle bridges for automobiles and trains primarily serve the petrochemical industry, including refineries and oil depots. They are a replacement for the traditional cement-reinforced concrete trestle bridges used in refining and chemical plants. Their basic structure consists of five main parts: fixed inclined ladders, bridge deck, guardrails, columns, and a canopy. These are detachable structures connected by bolts, and pipe supports can be installed under the bridge deck. A single trestle bridge can serve two lanes of traffic, with the lane directions parallel to the trestle bridge's alignment.

[0003] When loading and unloading tank trucks in the storage area, operators need to frequently climb onto the roof of the trucks to perform these operations. The tank trucks vary in tonnage and the height of their openings. Fixed-height trestle platforms cannot simultaneously meet the needs of operators to safely climb onto the roof of tank trucks of various heights. If the height difference between the trestle platform and the top of the tank truck is too high or too low, it will cause difficulties for operators climbing onto the trucks and increase the risk of falls. Therefore, it is particularly urgent to find an effective solution to provide maximum safety protection for operators. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a fully automatic lifting platform that adapts to various tank truck heights, solving the problem in the prior art where fixed-height trestles cannot unload tank trucks of different tonnages and with varying opening heights during loading and unloading in storage areas.

[0005] This utility model is achieved through the following solution:

[0006] A fully automatic lifting platform adaptable to various tank truck heights includes a lifting drive mechanism, a guide support mechanism, a lifting platform, upper and lower inclined ladders, and connecting steps; the output end of the lifting drive mechanism is connected to the lifting platform, the guide support mechanism is rotatably connected to the lifting platform, and the upper and lower inclined ladders and the connecting steps are respectively hinged to the lifting platform.

[0007] Based on the above-mentioned fully automatic lifting platform adaptable to various tank truck heights, the lifting drive mechanism includes a lifting support, a drive motor, a screw jack, and a pressure sensor; the drive motor and the screw jack are mounted on the lifting support; the drive motor is connected to the input end of the screw jack, the output end of the screw jack is connected to the base of the lifting platform, and the pressure sensor is located between the lifting platform and the screw jack.

[0008] Based on the above-mentioned fully automatic lifting platform that adapts to various tank truck heights, a jaw clutch is provided between the drive motor and the worm gear screw jack.

[0009] Based on the above-mentioned fully automatic lifting platform adaptable to various tank truck heights, the guide support mechanism includes a support cylinder, a roller assembly, limit switches, and a counterweight assembly; the roller assembly is arranged circumferentially along the outer surface of the support cylinder, and the roller assembly can move back and forth along the length of the support cylinder; the limit switches are respectively arranged at the upper and lower ends of the support cylinder; and the counterweight assembly is connected to the support cylinder and the lifting platform respectively.

[0010] Based on the above-mentioned fully automatic lifting platform adaptable to various tank truck heights, the support cylinder is hollow inside, and the counterweight assembly includes a pulley block, a counterweight block, and a connecting rope. The pulley block is located at the top of the support cylinder, one end of the connecting rope is connected to the lifting platform, and the other end is connected to the counterweight block, which is located inside the support cylinder.

[0011] Based on the above-mentioned fully automatic lifting platform that adapts to various tank truck heights, the shape and size of the counterweight block are matched with the inner wall of the support cylinder.

[0012] Based on the above-mentioned fully automatic lifting platform adaptable to various tank truck heights, the lifting platform is provided with a connecting hole for the support cylinder to pass through, and the roller assembly is disposed in the connecting hole. The roller assembly includes an upper roller group and a lower roller group. The upper roller group is disposed at the upper end face of the lifting platform, and the lower roller group is disposed at the lower end face of the lifting platform.

[0013] Based on the above-mentioned fully automatic lifting platform that adapts to various tank truck heights, both the upper roller group and the lower roller group include at least 4 rollers. The rollers are evenly arranged along the circumferential position of the support column, so that the rollers are in close contact with the outer surface of the support column.

[0014] Based on the above-mentioned fully automatic lifting platform that adapts to various tank truck heights, the rollers are connected to the lifting platform via roller seats, and the roller seats are provided with elongated holes for position adjustment.

[0015] Based on the above-mentioned fully automatic lifting platform that adapts to various tank truck heights, the upper and lower inclined ladders are provided with supporting rollers at their ends, and the angle range of the upper and lower inclined ladders is 25~55°.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] 1. In this solution, the lifting drive mechanism provides power to the overall lifting platform, the guide support mechanism provides guidance to the lifting platform, and at the same time, it works with the lifting drive mechanism to form a stable support for the lifting drive mechanism, ensuring the stability of the lifting platform during use. The upper and lower inclined ladders provide a path for workers to go up and down the ladder steps, and the connecting ladder steps can quickly connect the lifting platform and the tank truck. Under the movement of the lifting platform, it can match tank trucks of different sizes and heights.

[0018] 2. In this solution, the roller assembly enables the lifting platform to move back and forth stably along the outer surface of the support cylinder. The limit switches located at the upper and lower ends of the support cylinder limit the extreme positions of the roller assembly. When the roller assembly moves to the extreme position, the drive motor is shut off in conjunction with the roller assembly, so that the lifting platform can be driven within a safe range. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a side view of the overall structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the lifting drive mechanism in this utility model.

[0022] Figure 4 This is the structural concept of the roller assembly in this utility model.

[0023] Figure Descriptions: 1. Lifting drive mechanism; 2. Guide support mechanism; 3. Lifting platform; 4. Inclined ladder; 5. Connecting steps; 11. Lifting support; 12. Drive motor; 13. Turbine screw jack; 14. Pressure sensor; 15. Jaw clutch; 21. Support cylinder; 22. Roller assembly; 23. Limit switch; 24. Counterweight assembly; 25. Pulley block; 26. Counterweight block; 27. Connecting rope; 28. Upper roller assembly; 29. ​​Lower roller assembly; 210. Roller seat; 31. Operation control box; 32. Guardrail; 41. Support roller; 51. Cantilever guardrail. Detailed Implementation

[0024] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0025] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0028] like Figures 1-4 As shown, this utility model provides a technical solution:

[0029] A fully automatic lifting platform 3 adaptable to various tank truck heights includes, but is not limited to, a lifting drive mechanism 1, a guide support mechanism 2, a lifting platform 3, an upper and lower inclined ladder 4, and a bridging step 5; the output end of the lifting drive mechanism 1 is connected to the lifting platform 3, the guide support mechanism 2 is rotatably connected to the lifting platform 3, and the upper and lower inclined ladder 4 and the bridging step 5 are respectively hinged to the lifting platform 3.

[0030] Based on the above structure, the lifting drive mechanism 1 provides power to the overall lifting platform 3, the guide support mechanism 2 provides guidance for the lifting platform 3, and at the same time, it works with the lifting drive mechanism 1 to form a stable support for the lifting drive mechanism 1, ensuring the stability of the lifting platform 3 during use. The inclined ladder 4 provides a path for workers to go up and down the ladder, and the connecting ladder 5 can quickly connect the lifting platform 3 and the tank truck.

[0031] As an example, the lifting drive mechanism 1 may include a lifting support 11, a drive motor 12, a screw jack 13, and a pressure sensor 14; the drive motor 12 and the screw jack 13 are mounted on the lifting support 11; the drive motor 12 is connected to the input end of the screw jack 13, the output end of the screw jack 13 is connected to the base of the lifting platform 3, and the pressure sensor 14 is located between the lifting platform 3 and the screw jack 13.

[0032] The screw jack 13 drives the motor 12 to rotate, causing the screw at its output end to move up and down, which in turn drives the lifting platform 3 to move up and down. This jack is suitable for applications with high loads, low speeds, and infrequent operation, and it has a self-locking function, maintaining the load without the need for a braking device.

[0033] As an example, a jaw clutch 15 can be provided between the drive motor 12 and the screw jack 13, which can ensure the safety of the drive motor 12.

[0034] As an example, the guide support mechanism 2 may include a support cylinder 21, a roller assembly 22, a limit switch 23, and a counterweight assembly 24; the roller assembly 22 is arranged circumferentially along the outer surface of the support cylinder 21, and the roller assembly 22 can move back and forth along the length of the support cylinder 21; the limit switch 23 is respectively arranged at the upper end and the lower end of the support cylinder 21; and the counterweight assembly 24 is connected to the support cylinder 21 and the lifting platform 3 respectively.

[0035] Based on the above structure, the roller assembly 22 enables the lifting platform 3 to move back and forth stably along the outer surface of the support cylinder 21. The limit switches 23 located at the upper and lower ends of the support cylinder 21 respectively limit the extreme positions of the roller assembly 22. When the roller assembly 22 moves to the extreme position, the drive motor 12 is shut off in conjunction, so that the lifting platform 3 is driven within a safe range.

[0036] As an example, the support cylinder 21 is hollow inside. The counterweight assembly 24 may include a pulley block 25, a counterweight block 26 and a connecting rope 27. The pulley block 25 is located at the top of the support cylinder 21. One end of the connecting rope 27 is connected to the lifting platform 3 and the other end is connected to the counterweight block 26. The counterweight block 26 is located inside the support cylinder 21.

[0037] Based on the above mechanism, the load on the lifting platform can be reduced by the counterweight component 24, making the lifting platform 3 smoother and more stable during the lifting process.

[0038] The shape and size of the counterweight 26 are matched with the inner wall of the support cylinder 21, so that the counterweight 26 can move smoothly inside the support cylinder 21. The counterweight 26 has a box-shaped structure.

[0039] As an example, the lifting platform 3 is provided with a connecting hole for the support cylinder 21 to pass through. The roller assembly 22 is disposed in the connecting hole. The roller assembly 22 may include an upper roller group 28 and a lower roller group 29. The upper roller group 28 is disposed at the upper end face of the lifting platform 3, and the lower roller group 29 is disposed at the lower end face of the lifting platform 3. Both the upper roller group 28 and the lower roller group 29 include at least 4 rollers. The rollers are evenly distributed along the circumferential position of the support column so that the rollers are in close contact with the outer surface of the support column to ensure the stability of its operation.

[0040] In this embodiment, both the upper roller group 28 and the lower roller group 29 are configured with eight copper wheels, and the eight rollers are set to fit against the outer surface of the support cylinder 21.

[0041] As an example, the roller is connected to the lifting platform 3 through the roller seat 210. The roller seat 210 is provided with an elongated hole for position adjustment. The position of the roller can be finely adjusted through the elongated hole, which reduces problems such as high operating noise, easy jamming, and self-rotation of the lifting mechanism caused by the eccentric arrangement of the platform.

[0042] As an example, the upper and lower inclined ladder 4 is provided with a support roller 41 at the end that is removed from the lifting platform 3. The support roller 41 keeps the upper and lower inclined ladder 4 in contact with the ground. When the lifting platform 3 moves up and down, the upper and lower inclined ladder 4 can change its angle accordingly. The support roller 41 makes the movement of the upper and lower inclined ladder 4 smoother. The angle range of the upper and lower inclined ladder 4 is 25~55°. At different angles, can the steps always remain horizontal to ensure the safety of personnel going up and down?

[0043] As an example, the bridging step 5 is a four-step ladder for bridging tank trucks, and a cantilever guardrail 51 is provided on the bridging step 5; by rotating the angle between the bridging step 5 and the lifting platform 3, the position of the connection between the lifting platform 3 and the tank truck can be finely adjusted.

[0044] The lifting platform 3 is also equipped with an operation control box 31. Each lifting platform 3 has four buttons: up, down, stop, and emergency stop. The control box is mounted on one side of the column, and the operator can adjust the height of the lifting platform 3 on the ground to accommodate tank trucks of different sizes.

[0045] As an example, the lifting platform 3 is equipped with a guardrail 32, which can provide maximum fall protection for the operator.

[0046] In this design, the column of lifting platform 3 serves as both platform support and lifting track for the lifting mechanism. The column is positioned at the center of the platform's side. Under eccentric loads, the platform must start and stop smoothly, and the lifting mechanism must self-lock after reaching the required working height. No friction noise or jamming should occur during operation. The platform can start and stop at any position within its effective travel range, and can be stopped in emergencies. A load sensing system is added to the bottom of the platform for overload protection. The product's explosion-proof protection level must meet the requirements of the warehouse area. The platform ladder can move with the platform's lifting and lowering, and the steps must remain horizontal at any angle to facilitate personnel access.

[0047] How to use this device:

[0048] When not in use, lifting platform 3 is at its highest position. After the tank truck reaches the designated position, turn on the power and press the "Platform Down" button on the control box. The drive motor 12 of the lifting drive mechanism 1 will rotate, driving the screw in the worm gear screw jack to descend. At this time, lifting platform 3 descends. The counterweight 26 is linked to lifting platform 3 through pulley block 25, which reduces the load on the lifting drive. After lifting platform 3 reaches the designated position, press the stop button on the control box to stop lifting platform 3. At this time, the four-step ladder of the connecting tank truck is tilted to the top of the tank truck, and personnel can operate from the top of the tank truck. After the operation is completed, personnel can climb onto lifting platform 3, lift the four-step ladder, and press the "Platform Up" button on the control box. The platform rises to the top, triggering the upper limit switch 23 and stopping. Finally, turn off the power, and the tank truck drives away.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A full automatic lifting platform suitable for adapting to various tank truck heights, characterized in that: It includes a lifting drive mechanism, a guide support mechanism, a lifting platform, an inclined ladder, and connecting steps; the output end of the lifting drive mechanism is connected to the lifting platform, the guide support mechanism is rotatably connected to the lifting platform, and the inclined ladder and the connecting steps are respectively hinged to the lifting platform.

2. The full automatic lifting platform suitable for various tank truck heights according to claim 1, characterized in that: The lifting drive mechanism includes a lifting support, a drive motor, a worm gear screw jack, and a pressure sensor; the drive motor and the worm gear screw jack are mounted on the lifting support. The drive motor is connected to the input end of the screw jack, the output end of the screw jack is connected to the base of the lifting platform, and the pressure sensor is located between the lifting platform and the screw jack.

3. The fully automatic lifting platform adaptable to various tank truck heights as described in claim 2, characterized in that: A jaw clutch is provided between the drive motor and the screw jack.

4. The fully automatic lifting platform adaptable to various tank truck heights as described in claim 3, characterized in that: The guide support mechanism includes a support cylinder, a roller assembly, limit switches, and a counterweight assembly. The roller assembly is arranged circumferentially along the outer surface of the support cylinder and can move back and forth along the length of the support cylinder. The limit switches are respectively located at the upper and lower ends of the support cylinder, and the counterweight assembly is connected to the support cylinder and the lifting platform.

5. The fully automatic lifting platform adaptable to various tank truck heights as described in claim 4, characterized in that: The support cylinder is hollow inside. The counterweight assembly includes a pulley block, a counterweight block, and a connecting rope. The pulley block is located at the top of the support cylinder. One end of the connecting rope is connected to the lifting platform, and the other end is connected to the counterweight block. The counterweight block is located inside the support cylinder.

6. The fully automatic lifting platform adaptable to various tank truck heights as described in claim 5, characterized in that: The shape and size of the counterweight are matched to the inner wall of the support cylinder.

7. The fully automatic lifting platform adaptable to various tank truck heights as described in claim 6, characterized in that: The lifting platform is provided with a connecting hole for the support cylinder to pass through. The roller assembly is disposed in the connecting hole. The roller assembly includes an upper roller group and a lower roller group. The upper roller group is disposed at the upper end face of the lifting platform, and the lower roller group is disposed at the lower end face of the lifting platform.

8. The fully automatic lifting platform adaptable to various tank truck heights as described in claim 7, characterized in that: Both the upper roller assembly and the lower roller assembly include at least four rollers, which are evenly arranged along the circumferential position of the support column so that the rollers are in close contact with the outer surface of the support column.

9. A fully automatic lifting platform adaptable to various tank truck heights as described in claim 8, characterized in that: The roller is connected to the lifting platform via a roller seat, and the roller seat is provided with an elongated hole for position adjustment.

10. The fully automatic lifting platform adaptable to various tank truck heights as described in claim 9, characterized in that: The upper and lower inclined ladders are equipped with support rollers at their ends that are transported away from the lifting platform. The angle range of the upper and lower inclined ladders is 25~55°.

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