Efficient energy-saving elevator

Abstract

The utility model relates to a high-efficiency energy-saving elevator which comprises a bearing table, a plurality of strip-shaped blocks, double-rod hydraulic cylinders correspondingly matched with the strip-shaped blocks and an elastic pushing and pressing mechanism. And a plurality of strip-shaped sinking grooves which are matched with the strip-shaped blocks and are distributed at intervals are formed in the upper end face of the bearing table, so that the strip-shaped blocks are matched with the strip-shaped sinking grooves through rail structures extending vertically. The double-rod hydraulic cylinder is fixed in the strip-shaped sinking groove, and rollers are arranged at the ends of cylinder rods. And wedge surface parts correspondingly matched with the rollers are formed on the lower end surfaces of the strip-shaped blocks. The elastic pushing and pressing mechanism is fixed to the bearing table and can exert force on the strip-shaped block. The roller can make contact with different positions of the wedge surface part and can drive the strip-shaped block to move relative to the bearing table under the combined action of the roller and the elastic pushing and pressing mechanism. According to the utility model, the use frequency of the tray can be saved or reduced in the loading operation of goods, so that the times of lifting the goods and the tray by a forklift at the same time are reduced, the energy consumption is saved, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic lifting equipment technology, specifically to a high-efficiency and energy-saving lifting machine. Background Technology

[0002] Hydraulic forklifts are widely used in logistics hubs, docks, and large workshops to load (packed / boxed) goods onto trucks. However, when using hydraulic forklifts, the goods need to be pre-placed on pallets / turntables so that the forklift's two forks can extend into the perforated structures on the pallet to lift both the pallet and the goods as a whole. Then, in conjunction with overhead cranes or other lifting equipment, the pallet and goods are separated, and the goods are loaded onto the truck bed or into containers. Therefore, during operation, the hydraulic forklift frequently needs to lift goods to a certain height while bearing the weight of the pallet / turntable, and also frequently involves separating the goods from the pallet / turntable and retrieving the pallet / turntable. This results in energy waste and low operational efficiency. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a high-efficiency and energy-saving lifting platform that can reduce or eliminate the frequency of pallet use during cargo loading operations, thereby reducing the number of times forklifts simultaneously lift cargo and pallets, thus helping to save energy and improve operational efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a high-efficiency and energy-saving lifting platform, including a support platform, multiple strip blocks, double-rod hydraulic cylinders that correspond one-to-one with the strip blocks, and multiple elastic pushing mechanisms that correspond to the strip blocks.

[0005] Multiple strip-shaped grooves are formed on the upper surface of the support platform, corresponding one-to-one with the strip blocks and distributed alternately. The strip blocks and the strip-shaped grooves are matched by vertically extending track structures, so that the strip blocks can move up and down relative to the support platform. This achieves the purpose of selectively switching the upper surface of the strip block between being flush with the upper surface of the support platform and being protruding upward relative to the upper surface of the support platform.

[0006] A double-rod hydraulic cylinder is fixed to the bottom surface of the strip-shaped sinkhole, with rollers, or rotating rollers, at the ends of its two cylinder rods. A wedge-shaped section is formed on the lower end face of the strip block, corresponding to the rollers on both ends, allowing the rollers to move along the length of the wedge-shaped section. The length of the wedge-shaped section is aligned with the length of the strip block. An elastic pushing mechanism is fixed to the support platform and applies a vertically downward elastic pushing force to the strip block. As the cylinder rods of the double-rod hydraulic cylinder extend and retract, the rollers on both ends correspond to different positions of the wedge-shaped section, and together with the elastic pushing mechanism, drive the strip block to move up and down relative to the support platform.

[0007] Optionally, a vertically downward extending arm plate is formed at the end of the strip block; correspondingly, a strip-shaped through hole is formed at the end of the strip-shaped groove for inserting the arm plate, so that the arm plate and the strip-shaped through hole can always maintain a plug-in matching state.

[0008] Optionally, multiple side grooves are alternately provided along the length of both sides of the width of the strip groove; correspondingly, wing plates are formed on the side wall of the strip block at the lower part, each matching one-to-one with the side groove, so that the wing plates can be kept inserted into the side grooves. An elastic pushing mechanism is provided at the side groove and can apply pushing force to the wing plates.

[0009] Optionally, multiple elastic pushing mechanisms are provided at each side sinkhole.

[0010] Optionally, the elastic pushing mechanism includes a stud and a spring. A threaded hole matching the lower part of the stud is formed at the bottom of the side groove, and a through hole for the stud to pass through is formed on the wing plate. The spring is sleeved on the stud, with its two ends contacting the upper end face of the wing plate and the lower end face of the stud's end cap, respectively.

[0011] Optionally, if there are three strip blocks, then there are also three strip grooves formed on the upper surface of the support platform.

[0012] Optionally, it also includes a scissor-lifting mechanism fixed to the base at its lower part, with the upper part of the scissor-lifting mechanism connected to the support platform, capable of driving the support platform to move up and down relative to the base. This design allows for loading goods directly using the elevator described in this application in various scenarios. In loading operations within large containers or workshops, the elevator can lift goods to a height comparable to the container or platform, allowing for final loading directly inside the container or platform using a manual hydraulic forklift, eliminating the need to lift goods with a forklift in the workshop. Therefore, a power-driven wheel structure is required on the base to enable movement.

[0013] Optionally, an anti-slip pad layer is fixedly provided on the upper surface of the support platform and the upper surface of the strip block.

[0014] The beneficial effects of this utility model are: it can eliminate or reduce the frequency of pallet use during the loading and unloading of goods, thus helping to save energy and improve work efficiency. Attached Figure Description

[0015] Figure 1 This is a partial cross-sectional structural diagram of the present invention.

[0016] Figure 2This is a top view of the structure when the support platform is matched with numerous strip sliders.

[0017] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure at point AA.

[0018] Figure 4 For Figure 3 A magnified schematic diagram of the structure at point I in the middle.

[0019] Figure 5 for Figure 2 A schematic diagram of the cross-sectional structure at point BB.

[0020] Figure 6 for Figure 5 The cross-sectional view shown is a schematic diagram of the structure of the double-rod hydraulic cylinder when the cylinder rod is in the extended state.

[0021] Figure 7 for Figure 2 A schematic diagram of the cross-sectional structure at point CC.

[0022] In the diagram: 10 Base; 20 Scissor Lifting Mechanism, 21 Scissor Arm, 22 Drive Unit; 30 Support Platform, 31 Strip-shaped Slot, 311 Inner Bottom Surface, 312 Strip-shaped Through Hole, 32 Side Slot; 40 Strip Block, 41 Arm Plate, 42 Slot, 421 Top Wall, 422 Wedge-shaped Section, 43 Wing Plate; 50 Double-rod Hydraulic Cylinder, 51 Roller, 52 U-shaped Block; 60 Elastic Pushing Mechanism, 61 Stud, 62 Spring; 70 Spacing Area. Detailed Implementation

[0023] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0024] like Figures 1 to 7The high-efficiency and energy-saving lifting platform shown includes a base 10, a scissor lifting mechanism 20, a support platform 30, three strip blocks 40, three double-rod hydraulic cylinders 50 corresponding to each strip block 40, and multiple elastic pushing mechanisms 60 corresponding to each strip block 40. In this application, the number of strip blocks 40 and the number of double-rod hydraulic cylinders 50 can be the same, or the number of double-rod hydraulic cylinders 50 can be an integer multiple of the number of strip blocks 40. The number of elastic pushing mechanisms 60 is at least twice the number of strip blocks 40, preferably an integer multiple of four times or more.

[0025] The scissor lift mechanism 20 includes a scissor arm 21 and a drive unit 22. The lower part of the scissor arm 21 matches the base 10, and the upper part matches the lower end face of the support platform 30. The drive unit 22 is a hydraulic cylinder unit and, with the extension and retraction of the hydraulic cylinder rod, can drive the scissor arm of the scissor arm 21 to rotate around a pivot, thereby causing the support platform 30 to move up and down relative to the base 10. This part of the technology can be referred to in the prior art, so it will not be described in detail.

[0026] The upper surface of the support platform 30 is formed with a plurality of strip-shaped grooves 31 that correspond one-to-one with the strip-shaped blocks 40. The strip-shaped blocks 40 and the strip-shaped grooves 31 are matched by a track structure that extends in the vertical direction, so that the strip-shaped blocks 40 can move up and down relative to the support platform 30. The upper surface of the strip-shaped blocks 40 can be selectively switched between a state in which it is flush with the upper surface of the support platform 30 and a state in which it protrudes upward relative to the upper surface of the support platform 30.

[0027] The strip-shaped sinkers 31 are alternately distributed on the support platform 30 (in the X-axis direction), with their length direction in the Y-axis direction. The Z-axis direction is vertical. The cylinder body of the double-rod hydraulic cylinder 50 is fixedly mounted on the inner bottom surface 311 of the strip-shaped sinker 31 (located at the center of the sinker's length), and rollers 51 are provided at the ends of the cylinder rods on both sides. Wedge-shaped surfaces 422 corresponding to the rollers 51 on both ends are formed on the lower end face of the strip-shaped block 40, with the proximal ends of the two wedge-shaped surfaces 422 extending upwards and their extension lines intersecting. The elastic pushing mechanism 60 is fixedly mounted on the support platform 30 and can apply a vertically downward elastic pushing force to the strip-shaped block 40, which can keep the upper end face of the strip-shaped block 40 approximately flush with the upper end face of the support platform 30 in the initial state (when the cylinder rods of the double-rod hydraulic cylinder 50 are in the retracted state).

[0028] A groove 42 is formed on the lower end face of the strip block 40 to create clearance space for assembling the double-rod hydraulic cylinder 50. Specifically, on the top wall 421 of the groove 42, wedge-shaped portions 422 are formed on both sides along the length direction, corresponding to the rollers 51 on both ends of the double-rod hydraulic cylinder 50. The end of the wedge-shaped portion 422 closest to the end of the strip block 40 is the lower end, that is, the wedge-shaped portion 422 extends upward at an upward inclination from the side of the strip block 40 toward the center position.

[0029] As the cylinder rod of the double-rod hydraulic cylinder 50 extends and retracts, the rollers 51 on both ends of the cylinder rod can move to different positions on the wedge-shaped surface 422. Together with the elastic pushing mechanism 60, they drive the strip block 40 to move up and down relative to the support platform 30. That is, as the cylinder rod of the double-rod hydraulic cylinder 50 gradually extends from its initial contracted state, the rollers 51 on both ends of the double-rod hydraulic cylinder 50 synchronously move towards the edges of the two wedge-shaped surfaces 422 (in the Y-axis direction), gradually pushing the strip block 40 upward relative to the strip-shaped groove 31 or the support platform 30. This causes the upper surface of the strip block 40 to move above the upper surface of the support platform 30. During this process, the spring 62 (mentioned below) in the elastic pushing mechanism 60 is gradually compressed and stores energy. The forklift arm extends from the gap area 70 between two adjacent strip blocks 40, lifting the goods from... After being removed from the support platform 30, the cylinder rods of the double-rod hydraulic cylinder 50 gradually retract. The rollers 51 on both ends of the double-rod hydraulic cylinder 50 will move synchronously towards the positions close to the two wedge-shaped surfaces 422. During this period, under the pushing force of the spring 62 in the elastic pushing mechanism 60, the strip block 40 can be pushed downward and gradually retracted into the strip-shaped sink 30. Finally, the upper surface of the strip block 40 is restored to a state where it is roughly flush with the upper surface of the support platform 30. At this time, the gap area 70 disappears, and the upper surface of the support platform 30 is formed into a flat surface, which is conducive to the stable placement of goods.

[0030] U-shaped blocks 52 are fixed to both ends of the cylinder rod of the double-rod hydraulic cylinder 50, and a rotating shaft is provided between the two arm plates of the U-shaped blocks 52, with the roller 51 sleeved on the rotating shaft. When the cylinder rod of the double-rod hydraulic cylinder 50 performs a telescopic action, the roller 51 can rotate relative to the wedge-shaped surface 422, which can reduce the relative frictional resistance between the opposing surfaces and reduce wear.

[0031] Vertically downward extending arm plates 41 are formed at the ends (on both sides of the Y-axis) of the strip block 40; correspondingly, strip-shaped through holes 312 are formed at the ends of the strip-shaped sink 31. After the strip block 40 is placed into the strip-shaped sink 31, the lower part of the arm plate 41 is inserted into the strip-shaped through hole 312, ensuring that the arm plate 41 and the strip-shaped through hole 312 are always in a plugged-in matching state. After setting the structure in which the arm plate 41 and the strip-shaped through hole 312 are plugged in matching, it can be ensured that the strip block 40 moves stably relative to the support platform 30 in the vertical direction, avoiding significant shaking during relative movement, ensuring that the goods can be stably supported on the three strip blocks 40, and also protecting the matching groove structure between them.

[0032] Along the width of the strip-shaped recess 31, three side recesses 32 are alternately arranged along their length. Correspondingly, on the opposite sidewalls of the strip-shaped block 40, and at the lower part of the sidewalls, wing plates 43 are formed, each corresponding to one of the side recesses 32. During the lifting and lowering movement of the strip-shaped block 40 relative to the support platform 30, the wing plates 43 are kept inserted into the side recesses 32. The elastic pushing mechanism 60 is correspondingly located at the side recesses 32 and can apply a vertical pushing force to the wing plates 43. Figure 2 , Figure 7 As shown, three elastic pushing mechanisms 60 are provided at one of the side grooves 32, so that the three elastic pushing mechanisms 60 can apply force evenly on the wing plate 43.

[0033] Each elastic pushing mechanism 60 includes a stud 61 and a spring 62. A threaded hole matching the lower part of the stud 61 is formed at the bottom of the side recess 32, and a through hole for the stud 61 to pass through is formed on the wing plate 43. This allows the through hole on the wing plate 43 to guide the wing plate 43 to move vertically relative to the side recess 32. The spring 62 is sleeved on the stud 61, with its two ends contacting the upper end face of the wing plate 43 and the lower end face of the end cap of the stud 61, respectively. After the stud 61 passes through the through hole on the wing plate 43, its lower part is screwed into the threaded hole, thus fixing the elastic pushing mechanism 60 onto the support platform 30. By controlling the length of the stud 61 screwed into the threaded hole, the compression degree of the spring 62 in its initial state can be adjusted.

[0034] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit it. Many aspects of this utility model can be improved without departing from the overall concept. Those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A high-efficiency and energy-saving elevator, characterized in that: The system includes a support platform (30), multiple strip blocks (40), double-rod hydraulic cylinders (50) that correspond one-to-one with the strip blocks (40), and multiple elastic pushing mechanisms (60) that correspond to the strip blocks (40); multiple strip grooves (31) that correspond one-to-one with the strip blocks (40) and are distributed alternately are formed on the upper end surface of the support platform (30), and the strip blocks (40) and the strip grooves (31) are matched by vertically extending track structures; the double-rod hydraulic cylinders (50) are fixedly installed in the strip grooves (31) and their cylinder rods on both sides are... Rollers (51) are provided at both ends; the lower end face of the strip block (40) is formed with wedge-shaped surfaces (422) that correspond to and match the rollers (51) on both ends respectively; the elastic pushing mechanism (60) is fixed on the support platform (30) and can apply elastic pushing force in the vertical direction to the strip block (40); the roller (51) can contact the wedge-shaped surfaces (422) at different positions when the double-rod hydraulic cylinder (50) performs telescopic action, and can drive the strip block (40) to move up and down relative to the support platform (30) under the combined action of the elastic pushing mechanism (60).

2. The high-efficiency energy-saving elevator according to claim 1, characterized in that: A vertically downward extending arm plate (41) is formed at the end of the strip block (40); correspondingly, a strip-shaped through hole (312) is formed at the end of the strip groove (31) so that the arm plate (41) and the strip-shaped through hole (312) can always maintain a plug-in matching state.

3. The high-efficiency energy-saving elevator according to claim 1, characterized in that: Along the width of the strip groove (31), multiple side grooves (32) are provided alternately along the length direction; correspondingly, wing plates (43) that match the side grooves (32) are formed on the opposite side walls of the strip block (40), so that the wing plates (43) can be kept inserted into the side grooves (32); the elastic pushing mechanism (60) is provided at the side grooves (32) and can apply pushing force to the wing plates (43).

4. The high-efficiency energy-saving elevator according to claim 3, characterized in that: Multiple elastic pushing mechanisms (60) are provided at each side sinkhole (32).

5. A high-efficiency energy-saving elevator according to claim 3 or 4, characterized in that: The elastic pushing mechanism (60) includes a stud (61) and a spring (62); a threaded hole that matches the lower part of the stud (61) is formed at the bottom of the side groove (32), and a through hole that allows the stud (61) to pass through is formed on the wing plate (43); the spring (62) is sleeved on the stud (61) and its two ends contact the upper end face of the wing plate (43) and the lower end face of the end cap of the stud (61) respectively.

6. The high-efficiency energy-saving elevator according to claim 1, characterized in that: The number of strip blocks (40) and the number of strip sinks (31) are both three.

7. The high-efficiency energy-saving elevator according to claim 1, characterized in that: It also includes a scissor lift mechanism (20) fixed at the bottom of the base (10), and connects the upper part of the scissor lift mechanism (20) to the support platform (30), and can drive the support platform (30) to move up and down relative to the base (10).

8. The high-efficiency energy-saving elevator according to claim 1, characterized in that: Anti-slip pads are fixedly provided on the upper surface of the support platform (30) and the upper surface of the strip block (40).

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