Mobile load trolley with positioning function

Abstract

The invention discloses a mobile load trolley with a positioning function, and belongs to the technical field of movement and positioning of precision equipment. The moving, loading, positioning and compressing vehicle mainly comprises a vehicle frame body, a controller, a moving device, a positioning device and a compressing assembly, and the four functions of moving, loading, positioning and compressing are integrated. Flexible displacement is realized through the moving device; through four hydraulic supporting legs capable of being independently controlled of the positioning device, the hydraulic supporting legs descend to be supported to the ground after the hydraulic supporting legs reach proper positions, rigid supporting, accurate positioning and accurate leveling are achieved, and shaking is prevented; through the pressing assembly arranged on the upper surface of the frame body, goods can be rapidly and accurately fixed to the preset position; the controller controls the expansion amount of each hydraulic supporting leg; according to the invention, the technical problems of difficult displacement, inaccurate positioning, poor stability, easy shaking and the like in the carrying and in-place process of the precision equipment are solved, and the device is particularly suitable for high-precision instrument moving scenes such as semiconductor equipment and precision measuring instruments.

Description

Technical Field

[0001] This invention relates to the field of precision equipment movement and positioning technology, and in particular to a mobile load trolley with positioning function. Background Technology

[0002] In modern industrial and scientific research fields such as semiconductor manufacturing, precision optics, biomedicine, and high-end equipment manufacturing, high-value, high-precision instruments and equipment, such as lithography machines, electron microscopes, wafer inspection equipment, and precision measurement centers, have become indispensable core assets. These devices often share common characteristics: large weight, high value, and extremely stringent requirements for the stability of their operating environment. Even the slightest vibration or unevenness in the mounting surface can lead to loss of equipment precision, decreased product yield, or even damage to core components, resulting in significant economic losses. Therefore, safely, smoothly, and accurately transporting these precision devices to designated workstations and leveling and securing them has become a crucial and highly challenging aspect.

[0003] Currently, the industry generally uses relatively simple technical solutions for handling and positioning heavy precision equipment, which can be mainly divided into the following categories: First, the most traditional method is the "roller sliding method" combined with "jack lifting pads". This involves first using a crane or forklift to lift the equipment to its approximate location, then manually fine-tuning it using rollers and pry bars. After positioning, multiple jacks are used to simultaneously lift the equipment, and metal shims of different thicknesses are inserted between the equipment base and the foundation to achieve initial leveling. Second, "heavy-duty hydraulic flatbed trucks" are used for movement. While these vehicles have strong load-bearing and mobility capabilities, their design purpose is to solve the problem of transferring heavy objects, not precise positioning. After the equipment arrives, other tools are still needed for fine-tuning the position and providing stable support. Third, "adjustable spiral support bases" are configured for specific equipment. After the equipment is placed, multiple spiral support legs on the base are manually adjusted repeatedly to find the level.

[0004] The aforementioned existing technical solutions have a series of inherent and insurmountable defects and shortcomings.

[0005] First, the various functional links are severely fragmented, and the operation process is cumbersome and lengthy. From moving and roughly positioning to fine-tuning and fixing, it requires switching between multiple tools and working together with multiple skilled workers. The whole process is not well connected, inefficient, and requires a high level of on-site coordination and management.

[0006] Secondly, the final positioning accuracy and stability cannot meet the stringent requirements of precision equipment. In traditional methods, whether it's the shims or the adjustable base of the equipment itself, the contact between the shims and the foundation is rigid or semi-rigid, lacking effective vibration damping and anti-sway mechanisms. More importantly, the entire leveling process relies heavily on the operator's feel and experience, lacking objective and quantifiable feedback methods, resulting in difficulty in guaranteeing leveling accuracy and poor consistency. Micro-vibrations generated during equipment operation or external disturbances can easily cause "swaying," and this micro-instability is fatal for precision machining and measurement.

[0007] Secondly, there are potential safety hazards in securing equipment during transport. Existing handling tools, such as ordinary flatbed trucks, mostly lack specialized securing devices for precision equipment, often relying solely on simple steel cables or straps for restraint. This leaves the equipment at risk of slipping or even tipping over, a risk that is unacceptable for high-value equipment.

[0008] Finally, existing solutions suffer from low automation and limited adaptability. The entire handling and positioning process relies almost entirely on manual labor, resulting in high labor intensity, and adjustments are particularly difficult when facing complex conditions such as uneven ground. Current technology lacks an integrated solution that combines movement, locking, leveling, and fixing functions, enabling automated or semi-automated operation. Therefore, there is an urgent need for a solution that integrates movement, stable support, precise positioning, and accurate leveling functions. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of existing technologies, such as severely fragmented functional components, cumbersome and lengthy operation processes, inability to meet the stringent requirements of precision equipment in terms of positioning accuracy and stability, potential safety hazards in equipment fixation during transportation, low automation, and limited adaptability. This invention provides a mobile load trolley with a reasonable structure and simple operation that integrates movement, load, positioning, and clamping functions, effectively solving the problems of stability and accuracy in the transportation and positioning of precision equipment.

[0010] To achieve the above objectives, the present invention provides a mobile load trolley with positioning function, including a frame body, a controller, a moving device, a positioning device, and a clamping assembly; The main frame is used to bear the load; the controller is installed on the left and right sides of the main frame to control the positioning device; the moving device is installed at the bottom of the main frame to move the trolley; the positioning device includes four identical hydraulic support legs installed on both sides of the main frame to achieve rigid positioning and leveling of the trolley; the clamping assembly is set on the upper surface of the main frame and engages with the positioning holes opened on the upper part of the main frame to clamp and fix the goods.

[0011] Preferably, the moving device includes four sets of identical omnidirectional wheels with braking function.

[0012] Preferably, all four sets of identical hydraulic support legs include a hydraulic telescopic bar and support legs, and all have a retracted state and a supported state.

[0013] Preferably, when the hydraulic support leg is in the supported state, the hydraulic telescopic bar extends, the support leg extends and supports the ground, achieving rigid positioning of the trolley; when the hydraulic support leg is in the retracted state, the support leg leaves the ground and the hydraulic telescopic bar retracts.

[0014] Preferably, the bottom of the hydraulic support leg is provided with an anti-slip pad.

[0015] Preferably, the controller independently controls the extension and retraction of each hydraulic support leg to achieve the positioning and leveling of the main frame.

[0016] Preferably, the clamping assembly includes a main clamping module and a secondary clamping module.

[0017] Preferably, the main clamping module includes two identical main clamping springs, main clamping heads, and main knobs, located at the front and rear ends of the vehicle frame body, respectively, for initially limiting the placement position of the goods.

[0018] Preferably, the secondary clamping module includes eight identical secondary clamping springs, secondary clamping heads, and secondary knobs, located on the left and right sides of the frame body, respectively, for clamping and fixing the items.

[0019] Preferably, the main clamping module and the auxiliary clamping module, through the elastic force provided by the main clamping spring and the auxiliary clamping spring respectively, buffer the vibration and impact generated during the movement or positioning of the trolley when limiting and clamping the goods, and avoid rigid collision between the goods and the clamping components.

[0020] Therefore, the present invention employs the above-described method, which has the following beneficial effects: (1) This invention innovatively integrates four major functions—"mobile transportation," "precise positioning," "rigid anti-sway," and "cargo clamping"—into a single device. This changes the complex mode of traditional operations that requires the alternating use of multiple tools. Operators can complete the entire process from movement to positioning simply through the controller, realizing the ideal working mode of "movement by wheels, positioning by outriggers." This greatly simplifies the operation process, reduces dependence on different types of work and frequent calls to large hoisting equipment, and shortens the traditional operation that requires several hours and multiple people to complete to a single person within a few minutes, significantly improving work efficiency.

[0021] (2) By using four independently controllable hydraulic support legs, the casters are actively lifted off the ground during positioning, so that the weight of the entire equipment and load is entirely borne by the rigid hydraulic support legs. This fundamentally eliminates the "micro-shaking" and "creep" phenomena caused by elastic components such as tires of traditional pallet trucks. The rigid contact between the support legs and the ground provides a stable platform with a near-permanent foundation for the precision equipment supported above, effectively isolating external vibration transmission and ensuring the ultimate accuracy and stability of the equipment during measurement, processing, or operation.

[0022] (3) The hydraulic support legs are precisely controlled by the controller, and their extension and retraction can be precisely adjusted. This not only ensures the controllability of the positioning process, but more importantly, it lays the foundation for automated leveling. This makes the leveling results no longer dependent on the skill and experience of the operators. Even non-professionals can complete high-precision positioning work, ensuring the consistency and reliability of the results and avoiding positioning deviations or equipment damage caused by human error.

[0023] (4) The specially designed clamping components (main and auxiliary clamping modules working together) provide double protection. The main clamping module works with the positioning holes on the upper part of the frame to achieve rapid initial positioning, while the auxiliary clamping module provides the final firm clamping force. This design ensures that the load will not shift relative to the frame during movement and lifting, completely eliminating the risk of cargo slippage and overturning, and providing comprehensive safety protection for high-value, fragile precision equipment.

[0024] (5) The independent control capability of the four hydraulic support legs gives this trolley a powerful adaptive function. Even on slightly uneven ground, the system can automatically compensate for ground differences by adjusting the extension and retraction of each support leg, ensuring that the main body of the trolley is always in a precise level state. This feature greatly improves the applicability and reliability of the equipment in different working environments.

[0025] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a mobile load trolley with positioning function according to the present invention; Figure 2 This is a schematic diagram of the mobile device structure of a mobile load trolley with positioning function according to the present invention. Figure 3 This is a schematic diagram of the hydraulic support leg structure of a mobile load trolley with positioning function according to the present invention. Figure 4 This is a schematic diagram of the main clamping module structure of a mobile load trolley with positioning function according to the present invention; Figure 5This is a schematic diagram of the sub-clamping module structure of a mobile load trolley with positioning function according to the present invention; Reference numerals: 1. Main frame; 2. Moving device; 3. Positioning device; 4. Positioning hole; 5. Controller; 6. Pressing assembly; 7. Casters; 8. Hydraulic support leg; 9. Hydraulic telescopic bar; 10. Support leg; 11. Anti-slip pad; 12. Main pressing module; 13. Main pressing spring; 14. Main pressing head; 15. Main knob; 16. Secondary pressing module; 17. Secondary pressing spring; 18. Secondary pressing head; 19. Secondary knob. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0028] It should be noted that the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or server that includes a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or device.

[0029] The following is combined Figures 1-5 The embodiments of the present invention will be described in detail below.

[0030] Example 1 like Figure 1 As shown, this invention relates to a mobile load trolley with positioning function, mainly comprising a frame body 1, a controller 5, a moving device 2, a positioning device 3, and a clamping assembly 6. The moving device 2 enables flexible movement; the positioning device 3 has four independently controllable hydraulic support legs 8, which lower to the ground after reaching a suitable position, achieving rigid support, precise positioning, and accurate leveling to prevent swaying; the clamping assembly 6 on the upper surface of the frame body 1 and the positioning holes 4 on the upper part of the frame body 1 allow for quick and precise fixing of goods in a preset position. This invention solves the technical problems of difficult movement, inaccurate positioning, poor stability, and easy swaying in the handling and positioning of precision equipment, and is particularly suitable for high-precision instrument movement scenarios such as semiconductor equipment and precision measuring instruments.

[0031] The mobile device 2 consists of four omnidirectional wheels 7 equipped with brakes, which are bolted to the bottom of the frame body 1. Figure 2 As shown, this is used to move the car.

[0032] The positioning device 3 consists of four hydraulic support legs 8, which are bolted to the main frame 1. Each hydraulic support leg 8 comprises a hydraulic telescopic bar 9 and a support leg 10. Figure 3 As shown, the bottom of the hydraulic support leg 8 is equipped with an anti-slip pad 11. The hydraulic support leg 8 has a retracted state and a supported state. In the supported state, the hydraulic telescopic bar 9 extends, the support leg 10 extends and supports the ground, thereby achieving rigid positioning of the trolley. In the retracted state, the support leg 10 leaves the ground, the hydraulic telescopic bar 9 retracts, and the positioning of the trolley is released.

[0033] The mobile load trolley with positioning function has two controllers 5 installed on the left and right sides, which control the extension and retraction of each hydraulic support leg 8 on both sides to realize the positioning and leveling functions of the trolley.

[0034] The clamping assembly 6 is fixed to the upper part of the vehicle frame body 1 by bolts. The clamping assembly 6 includes two main clamping modules 12 and eight auxiliary clamping modules 16. The main clamping modules 12 are used to initially limit the placement position of the goods, and the auxiliary clamping modules 16 are used to clamp and fix the items in place. Figure 5 As shown, the upper part of the frame body 1 has a positioning hole 4. The installation position of the main clamping module is initially adjusted according to the size of the load. The main clamping module mainly consists of three parts: the main clamping spring 13, the main clamping head 14, and the main knob 15. The length of the main clamping spring 13 is adjusted by rotating the main knob 15. Before the load is placed into the trolley, the main knob 15 is rotated to compress the main clamping spring 13. After the load is placed into the trolley, the main knob 15 is rotated in the opposite direction to gradually release the main clamping spring 13 until the main clamping head 14 clamps the load. The secondary clamping module mainly consists of three parts: the secondary clamping spring 17, the secondary clamping head 18, and the secondary knob 19. The length of the secondary clamping spring 17 is adjusted by rotating the secondary knob 19. Before the load is placed into the trolley, the secondary knob 19 is rotated to compress the length of the secondary clamping spring 17. After the load is placed into the trolley, the secondary knob 19 is rotated in the opposite direction to gradually release the secondary clamping spring 17 until the secondary clamping head 18 clamps the load.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A mobile load cart with positioning function, characterized in that, The utility model relates to a kind of trolley, including: Frame body, controller, moving device, positioning device and compression assembly; Frame body is used to carry load;Controller is installed on the left and right sides of frame body, for controlling positioning device;Moving device is installed on the bottom of frame body, for realizing the movement of trolley;Positioning device includes four groups of identical hydraulic support legs, respectively installed on the two sides of frame body, for realizing the rigid positioning and leveling of trolley;Compression assembly is arranged on the upper surface of frame body, combined with the positioning hole opened in the upper part of frame body, for compressing and fixing goods.

2. The mobile load cart with positioning function according to claim 1, characterized in that: Moving device includes four groups of identical universal wheels with brake function.

3. The mobile load cart with positioning function according to claim 1, characterized in that: Four groups of identical hydraulic support legs each include hydraulic telescopic lever and support leg, and each has retracted state and support state.

4. The mobile load cart with positioning function according to claim 3, characterized in that: When hydraulic support leg is in support state, hydraulic telescopic lever is extended, support leg is extended and supported on ground, realizing the rigid positioning of trolley;When hydraulic support leg is in retracted state, support leg leaves ground, and hydraulic telescopic lever is retracted.

5. The mobile load cart with positioning function according to claim 4, characterized in that: The bottom of hydraulic support leg is provided with anti-skid gasket.

6. The mobile load cart with positioning function according to claim 5, characterized in that: Controller independently controls the extension amount of each hydraulic support leg, realizing the positioning and leveling of frame body.

7. The mobile load cart with positioning function according to claim 1, wherein: Compression assembly includes main compression module and auxiliary compression module.

8. The mobile load cart with positioning function according to claim 7, characterized in that: Main compression module includes two groups of identical main compression springs, main compression head and main knob, respectively located at the front and rear ends of frame body, for preliminarily limiting the placement position of goods.

9. The mobile load cart with positioning function according to claim 7, characterized in that: Auxiliary compression module includes eight groups of identical auxiliary compression springs, auxiliary compression head and auxiliary knob, respectively located on the left and right sides of frame body, for compressing and fixing goods.

10. The mobile load cart with positioning function according to claim 7, wherein: Main compression module and auxiliary compression module respectively provide elastic force through main compression spring and auxiliary compression spring, when limiting and compressing goods, buffer the vibration and impact generated in the movement or positioning process of trolley, avoid the rigid collision between goods and compression assembly.

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