Scissor fork type hydraulic lifting weighing platform device for connection of small handcart stacking warehouse

Abstract

The utility model discloses a shear fork type hydraulic lifting weighing platform device for connection of a small handcart stacking warehouse. The shear fork type hydraulic lifting weighing platform device comprises a shear fork lifting structure, a frame structure, a hydraulic driving unit and a weighing unit. The scissor lifting structure is provided with a fixed end and a movable end. The frame structure is provided with a bottom platform and a top platform. The movable end is fixedly connected with the top platform, the weighing unit is provided with a first end and a second end, the first end is fixedly connected with the bottom platform, and the second end is fixedly connected with the fixed end; and the hydraulic driving unit is matched and connected with the shear fork lifting structure. According to the shear fork type hydraulic lifting weighing platform device provided by the utility model, the plurality of weighing units are arranged, the shear fork lifting structure is indirectly located on the bottom platform through the weighing units, and the shear fork lifting structure and the frame of the bottom platform are restrained into a whole through the fixed connection of the weighing units. While the structure is ensured to be simple, efficient, stable and accurate weighing is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of warehousing systems, in particular to a scissor-type hydraulic lifting and weighing platform device for connecting a trolley stacking warehouse. Background Art

[0002] In a logistics warehousing system, as an automated storage and retrieval device, the working efficiency of a stacker directly determines the operating efficiency of the entire logistics system. During the connection process of the stacker, not only a stable lifting platform is required to ensure the smooth and rapid transfer of goods, but also accurate weighing of the goods is needed. However, the existing lifting platforms still need to be improved in terms of lifting stability, weighing accuracy, and structural compactness.

[0003] In some prior arts, for example, the Chinese invention patent with the publication number CN108709618A provides a load weighing system for a scissor-type lifting platform, which uses a pin sensor for weighing in a scissor structure. However, this sensor arrangement form is obviously more complex and difficult to assemble.

[0004] Therefore, it is particularly important to develop a scissor-type hydraulic lifting and weighing platform that is efficient, stable, and accurate. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide a scissor-type hydraulic lifting and weighing platform device for connecting a trolley stacking warehouse.

[0006] To achieve the foregoing utility model purpose, the technical solutions adopted by the present utility model include:

[0007] In a first aspect, the present utility model provides a scissor-type hydraulic lifting and weighing platform device for connecting a trolley stacking warehouse, which includes a scissor lifting structure, a frame structure, a hydraulic drive unit, and a weighing unit;

[0008] The scissor lifting structure has a fixed end and a movable end, the frame structure has a bottom platform and a top platform, and the top platform is provided with a bearing surface capable of carrying a trolley;

[0009] The movable end is fixedly connected to the top platform, the weighing unit has a first end and a second end, and can sense the pressure between the first end and the second end. The first end is fixedly connected to the bottom platform, and the second end is fixedly connected to the fixed end;

[0010] The hydraulic drive unit is cooperatively connected with the scissor lifting structure and is used to make the scissor lifting structure perform telescopic actions.

[0011] Based on the above technical solutions, compared with the prior art, the beneficial effects of the present utility model include:

[0012] The scissor - type hydraulic lifting and weighing platform device provided by the present utility model sets multiple weighing units, and makes the scissor lifting structure directly sit on the multiple weighing units, and indirectly sit on the bottom platform through the weighing units. The frame of the scissor lifting structure and the bottom platform is constrained as a whole through the fixed connection of the weighing units. When weighing, the sum of the readings of the multiple weighing units is the total weight of the scissor lifting structure, the top platform and the trolley. Thus, while ensuring a simple structure, efficient, stable and accurate weighing is achieved.

[0013] The above description is only an overview of the technical solution of the present utility model. In order to enable those skilled in the art to more clearly understand the technical means of the present application and implement it in accordance with the content of the description, the following takes the preferred embodiment of the present utility model and combines with detailed drawings for illustration as follows. Description of the Drawings

[0014] Figure 1 is a three - dimensional structural schematic diagram of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model in the raised state;

[0015] Figure 2 is a side - view structural schematic diagram of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model in the raised state;

[0016] Figure 3 is a front - view structural schematic diagram of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model in the raised state;

[0017] Figure 4 is a three - dimensional structural schematic diagram of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model in the retracted state;

[0018] Figure 5 is a side - view structural schematic diagram of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model in the retracted state;

[0019] Figure 6 is a front - view structural schematic diagram of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model in the retracted state;

[0020] Figure 7 is a three - dimensional structural schematic diagram of the complete structure of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model;

[0021] Figure 8 is a side - view structural schematic diagram of the complete structure of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model;

[0022] Figure 9 It is a front view structural schematic diagram of the complete structure of the scissor - type hydraulic lifting and weighing platform device provided by a typical embodiment of the present utility model.

[0023] Explanation of reference numerals: 1. Frame structure; 11. Bottom platform; 12. Top platform; 2. Scissor - type lifting structure; 21. First fork arm; 22. Second fork arm; 23. Bottom track; 24. Top track; 3. Hydraulic drive unit; 4. Weighing unit; 5. Control unit; 6. Safety protection unit; 7. Ramp; 8. Trolley. Detailed implementation manners

[0024] In view of the deficiencies in the prior art, the inventor of this case, through long - term research and a large number of practices, has proposed the technical solution of the present utility model. The following will further explain the technical solution, its implementation process and principle, etc.

[0025] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0026] Moreover, relational terms such as "first" and "second" are only used to distinguish one component or method step with the same name from another, and do not necessarily require or imply any actual relationship or order between these components or method steps.

[0027] The purpose of the present utility model is to provide a scissor - type hydraulic lifting and weighing platform for stacker connection, which has the characteristics of stable lifting, accurate weighing, and compact structure.

[0028] Based on the above purpose, as shown in Figures 1-6 The embodiment of the present utility model provides a scissor - type hydraulic lifting and weighing platform device for trolley stacker connection, which includes a scissor - type lifting structure 2, a frame structure 1, a hydraulic drive unit 3, and a weighing unit 4; the scissor - type lifting structure 2 has a fixed end and a movable end, the frame structure 1 has a bottom platform 11 and a top platform 12, and the top platform 12 is provided with a bearing surface capable of bearing a trolley 8; the movable end is fixedly connected to the top platform 12, the weighing unit 4 has a first end and a second end, and can sense the pressure between the first end and the second end, the first end is fixedly connected to the bottom platform 11, and the second end is fixedly connected to the fixed end; the hydraulic drive unit 3 is cooperatively connected to the scissor - type lifting structure 2 for making the scissor - type lifting structure 2 perform telescopic actions.

[0029] In some embodiments, the frame structure 1 includes a three-dimensional main frame and a movable plate frame. The bottom of the main frame serves as the bottom platform 11, and the movable plate frame serves as the top platform 12. The scissor lift structure 2, the hydraulic drive unit 3, and the weighing unit 4 are all disposed within the enclosed space of the main frame.

[0030] In some embodiments, the movable plate frame includes a flat plate and vertical plates disposed on both sides of the flat plate. The two vertical plates are parallel to each other and perpendicular to the flat plate; the distance between the vertical plates matches the width of the trolley 8.

[0031] Generally, the bearing table surface can also be provided with a locking structure matching the shape of the trolley 8, such as a wheel groove or a buckle of the vehicle frame. When the trolley 8 enters the bearing table surface, the locking structure can fix the position of the trolley 8 to prevent it from shaking. On the one hand, it improves safety, and on the other hand, it can make the position of the trolley 8 stable during weighing to avoid weighing errors.

[0032] In the present utility model, by providing an integrated main frame and directly fixing the scissor lift structure 2 through the weighing unit 4, the scissor structure and the main frame form an integral cooperation structure, so that the weighing unit 4 can stably sense the gravity of the scissor lift structure 2, the hydraulic drive unit 3, the top platform 12, and the loaded trolley 8. The weights of the scissor lift structure 2, the hydraulic drive unit 3, and the top platform 12 are constant and can be eliminated. Therefore, the weight of the trolley 8 can be accurately obtained. The purpose of weighing while efficiently lifting the trolley 8 can be achieved with a relatively simple structure, and the system complexity of using a pin sensor is avoided.

[0033] As a typical example of the above technical solution, the specific structure of a specific scissor-type hydraulic lift weighing platform device provided by the embodiment of the present utility model includes:

[0034] A platform base, that is, the main frame: serving as a fixed foundation for the lift platform to carry the entire lifting mechanism and weighing system;

[0035] The scissor lift structure 2: composed of two sets of symmetrically intersecting scissor arms, and the telescopic movement of the scissor structure is driven by the telescopic movement of the hydraulic drive unit 3;

[0036] The hydraulic drive unit 3: includes a hydraulic pump, a hydraulic cylinder, oil pipes, a control valve, etc., to provide power for the lifting movement of the scissor lift structure 2;

[0037] Weighing unit 4: It includes a load cell and can also be electrically connected to the corresponding data acquisition module and data processing module for accurately weighing goods; the load cell is, for example, a square sensor, an axial tension and compression sensor, etc., such that the scissor lift structure 2 is located on a stress surface of the load cell, and the other stress surface is located on the bottom platform 11 of the frame structure 1;

[0038] Optionally, it further includes a control unit 5: connected to the hydraulic drive system and the weighing system to achieve the lifting control of the lifting platform and the accurate weighing of goods; this control system is not the key structure of the present utility model, but can generally be adaptively set during application. The relevant control panel and circuit belong to common electronic devices in this field, and conventional settings can meet the requirements;

[0039] Preferably, a safety protection unit 6 can also be provided: including a limit switch, an anti-collision device, etc., to ensure the safety of the lifting platform during operation. Similarly, this unit can also be conventionally selected.

[0040] In order to achieve a more compact structural feature, in some embodiments, a hollowed-out area is provided in the center of the flat plate. When the scissor lift structure contracts to the shortest position, a part of the structure of the hydraulic drive unit 3 passes through the plane where the hollowed-out area is located.

[0041] In addition, in terms of the overall operation convenience, as Figures 7-9 shown, in some embodiments, the frame structure 1 is further provided with a ramp 7, and the vertex of the ramp 7 is flush with the entrance of the bottom platform 11. This enables the trolley 8 to enter and exit the main frame without obstacles and move onto or out of the top platform 12.

[0042] Regarding the specific motion structure, in some embodiments, the scissor lift structure 2 includes a symmetrically arranged first fork arm group 21 and a second fork arm group. Any fork arm group includes a first arm, a second arm, a bottom track 23, and a top track 24. The first arm and the second arm are hinged at the middle position of the two. The bottom track 23 is evenly placed on a plurality of the weighing units 4, and the top track 24 is fixedly connected to the bottom surface of the top platform 12; the first arm has a third end and a fourth end, the second arm has a fifth end and a sixth end, the third end is hinged to one side of the bottom track 23, and the fifth end is hinged to one side of the top track 24; the fourth end is in sliding fit with the bottom track 23, and the sixth end is in sliding fit with the top track 24.

[0043] In some embodiments, at least four of the weighing units 4 are provided and are dispersedly arranged near the two ends of the two bottom tracks 23 respectively.

[0044] In some embodiments, the hydraulic drive unit 3 includes a telescopic cylinder body, and both ends of the telescopic cylinder body are respectively hinged to the bottom track 23 and the first arm or the second arm.

[0045] In some embodiments, particularly as Figures 1-3 shown, the telescopic cylinder body is hinged to the second arm; when observing the projection of the first fork arm 21 group in the direction of the second fork arm group, the hinge point between the telescopic cylinder body and the second arm is arranged in the area between the middle position and the fifth end.

[0046] In some embodiments, the hydraulic drive unit 3 further includes a cross bar, both ends of the cross bar are respectively fixedly connected to two second arms of the first fork arm 21 group and the second fork arm group, and the telescopic cylinder body is directly hinged to the cross bar. This technical solution forms an integral whole for the fork arm group through the cross bar, improves the stability, and avoids the interference of unstable center of gravity on weighing.

[0047] Based on the above technical solutions, it can be seen that the scissor - type hydraulic lifting weighing platform provided by the present utility model has the following advantages:

[0048] Stable lifting: The scissor mechanism adopts a group of mutually - crossed scissor arms, and realizes the lifting movement through the telescopic movement of the hydraulic cylinder, making the lifting process smoother;

[0049] Accurate weighing: The weighing system adopts high - precision weighing sensors, combined with a data acquisition module and a data processing module, to realize the accurate weighing of goods;

[0050] Compact structure: The scissor - type hydraulic lifting weighing platform has a compact structure, occupies a small area, and is suitable for various logistics and warehousing environments;

[0051] Efficient and convenient: The lifting control of the lifting platform and the accurate weighing of goods are realized through the control system, improving the overall efficiency of the logistics system.

[0052] It should be understood that the above - mentioned embodiments are only used to illustrate the technical concept and features of the present utility model, and the purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A scissor-type hydraulic lifting and weighing platform device for docking a trolley stacking warehouse, characterized in that: It includes scissor lift structure, frame structure, hydraulic drive unit and weighing unit; The scissor lift structure has a fixed end and a movable end, the frame structure has a bottom platform and a top platform, and the top platform is provided with a bearing table capable of bearing a trolley; The movable end is fixedly connected to the top platform, the weighing unit has a first end and a second end, and can sense the pressure between the first end and the second end, the first end is fixedly connected to the bottom platform, and the second end is fixedly connected to the fixed end; The hydraulic drive unit is cooperatively connected with the scissor lift structure to enable the scissor lift structure to perform telescopic action.

2. The scissor-type hydraulic lifting and weighing platform device according to claim 1 is characterized in that: The frame structure includes a three-dimensional main frame and a movable plate frame, the bottom of the main frame serves as the bottom platform, the movable plate frame serves as the top platform, and the scissor lift structure, hydraulic drive unit and weighing unit are all arranged in the enclosed space of the main frame.

3. The scissor-type hydraulic lifting and weighing platform device according to claim 2 is characterized in that: The movable plate frame comprises a flat plate and vertical plates arranged on both sides of the flat plate, and the vertical plates are parallel to each other and perpendicular to the flat plate; The spacing between the vertical plates matches the width of the trolley.

4. The scissor-type hydraulic lifting and weighing platform device according to claim 3 is characterized in that: A hollow area is provided in the center of the flat plate. When the scissor lift structure is retracted to the shortest position, a part of the structure of the hydraulic drive unit passes through the plane where the hollow area is located.

5. The scissor-type hydraulic lifting and weighing platform device according to claim 2 is characterized in that: The frame structure is also provided with a slope, the top of which is flush with the entrance of the bottom platform.

6. The scissor-type hydraulic lifting and weighing platform device according to claim 1 is characterized in that: The scissor lift structure comprises a first fork arm group and a second fork arm group which are symmetrically arranged, and each fork arm group comprises a first arm, a second arm, a bottom rail and a top rail, the first arm and the second arm are hinged at their middle positions, the bottom rail falls evenly on a plurality of the weighing units, and the top rail is fixedly connected to the bottom surface of the top platform; The first arm has a third end and a fourth end, the second arm has a fifth end and a sixth end, the third end is hinged to one side of the bottom track, the fifth end is hinged to one side of the top track; the fourth end is slidably matched with the bottom track, and the sixth end is slidably matched with the top track.

7. The scissor-type hydraulic lifting and weighing platform device according to claim 6 is characterized in that: As shown, there are at least four weighing units, which are dispersedly arranged near the two ends of the two bottom rails.

8. The scissor-type hydraulic lifting and weighing platform device according to claim 6 is characterized in that: The hydraulic drive unit comprises a telescopic cylinder, and two ends of the telescopic cylinder are respectively hinged with the bottom rail and the first arm or the second arm.

9. The scissor-type hydraulic lifting and weighing platform device according to claim 8, characterized in that: The telescopic cylinder is hinged to the second support arm; When projected from the first fork arm group toward the second fork arm group, the hinge point between the telescopic cylinder and the second support arm is arranged in the area between the middle position and the fifth end.

10. The scissor-type hydraulic lifting and weighing platform device according to claim 9, characterized in that: The hydraulic drive unit further comprises a cross bar, two ends of which are respectively fixedly connected to the two second arms of the first fork arm group and the second fork arm group, and the telescopic cylinder is directly hinged to the cross bar.

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