Manual hydraulic carrier plate lift truck

Abstract

The utility model discloses a manual hydraulic carrier plate lifting truck which comprises a carrier plate, a turnover limiting mechanism, a side guide wheel set, a transmission wheel set, a main body lifting frame, universal trundles, a fixed limiting mechanism, a double-side hydraulic cylinder, a push lever handle and a pedal hydraulic pump, and the side guide wheel set and the transmission wheel set are arranged on the two sides of the upper portion of the main body lifting frame. The side guide wheel sets and the conveying wheel sets are distributed at equal intervals in a crossed mode, the turnover limiting mechanism and the fixed limiting mechanism are arranged at the front end and the rear end of the upper portion of the main body lifting frame, and the main body lifting frame is composed of an upper frame plane lifting set, an upper supporting frame, a lower frame set, a hydraulic cylinder thrust rod, a lower supporting frame and a hydraulic cylinder fixing rod. The bilateral hydraulic cylinder drives a shear fork type connecting rod mechanism composed of the upper supporting frame and the lower supporting frame through a hydraulic cylinder thrust rod, and the upper frame plane lifting set installed on the shear fork type connecting rod mechanism is driven to ascend and descend. The lifting truck is rapid in lifting, simple, convenient and labor-saving in operation, and capable of easily driving the carrier plate with heavy weight and large volume.

Description

Technical Field

[0001] The utility model relates to the field of coating equipment, in particular to a manual hydraulic carrier lift truck. Background Art

[0002] As a carrier for sputtering coating of solar cell silicon wafers in the equipment chamber, the PVD and PECVD carriers need to be regularly removed from the production line, packed and cleaned due to the production process requirements. The carriers are made of stainless steel, with large size and heavy weight (more than 200 kg). With the improvement of equipment production capacity and technology, the area of the carriers is gradually increasing, and the weight of the carriers is also increasing accordingly.

[0003] At present, the method of removing the carrier from the main equipment to the multi-layer carrier truck is as follows: first, the carrier removed from the main equipment is manually carried by multiple people to a simple trolley with a fixed height, then transferred to the workshop material workshop by the trolley, and then the carrier is moved from the simple trolley to the multi-layer carrier truck by the cooperation of multiple people. The turnover and handling of the carrier mainly rely on the cooperation of multiple people, which is time-consuming and laborious. With the increase in the weight of the carrier, a major problem is the increased difficulty in the turnover and handling of the carrier, and manual handling is time-consuming and laborious.

[0004] Therefore, there is an urgent need to design a convenient and liftable carrier lift truck, which can quickly and easily realize the turnover and handling of the carrier, and can greatly reduce the labor and time costs of the turnover and handling of the carrier. Summary of the Utility Model

[0005] In view of the above problems, the utility model provides a manual hydraulic carrier lift truck that can quickly and easily realize the turnover and handling of the carrier.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is: a manual hydraulic carrier lift truck, including a carrier, a reversible limiting mechanism, side guide wheel groups, transmission wheel groups, a main body lifting frame, universal casters, a fixed limiting mechanism, double-sided hydraulic cylinders, a push bar handle, and a foot-operated hydraulic pump. The side guide wheel groups and the transmission wheel groups are arranged on both sides above the main body lifting frame, and the side guide wheel groups and the transmission wheel groups are distributed crosswise at equal intervals. The reversible limiting mechanism and the fixed limiting mechanism are arranged at the front and rear ends above the main body lifting frame. The main body lifting frame is composed of an upper frame plane lifting group, an upper support frame, a lower frame group, a hydraulic cylinder thrust rod, a lower support frame, and a hydraulic cylinder fixing rod. The double-sided hydraulic cylinders are installed on the hydraulic cylinder fixing rods, and the double-sided hydraulic cylinders drive a scissor-link mechanism composed of the upper support frame and the lower support frame through the hydraulic cylinder thrust rods, driving the upper frame plane lifting group installed on the scissor-link mechanism to lift.

[0007] Furthermore, the reversible limiting mechanism is composed of a limiting block, a reversible limiting pin rod, a reversible hinge, and a reversible base. The limiting block is rotatably connected to the reversible base through the reversible hinge. The reversible limiting pin rod is arranged on the limiting block, and the reversible base is fixedly locked at the rear end of the upper frame plane lifting group.

[0008] Furthermore, the side guide wheel group is composed of a mounting base, a side guide wheel adjustment plate, and side guide wheels. The mounting base is fixedly locked on the side of the upper frame plane lifting group.

[0009] Furthermore, the transmission wheel group is composed of a wheel shaft mounting plate, a transmission wheel shaft, and a rubber-coated transmission wheel. The wheel shaft mounting plate is fixedly locked on the side of the upper frame plane lifting group.

[0010] Furthermore, there are four groups of universal casters, which are respectively installed at the four corners of the bottom of the main body lifting frame.

[0011] Furthermore, the push bar handle and the foot-operated hydraulic pump are installed at the front end of the lower frame group.

[0012] As can be seen from the above description of the structure of the present utility model, compared with the prior art, the present utility model has the following advantages:

[0013] 1. The lifting of the carrier plate of the present utility model is driven by a foot-operated hydraulic pump to drive a hydraulic cylinder. Through a scissor link mechanism, the lifting is fast, the operation is simple, convenient, labor-saving, the lifting height range is large, the compression rate after lowering is high, it can be seamlessly docked with the lowest layer of multiple carrier plates, and it can easily drive carrier plates with heavy weight and large volume, replacing the time-consuming and laborious work of multiple people collaborating to lift the carrier plate in the prior art, and has good application value.

[0014] 2. Driven by bilateral hydraulic cylinders, while ensuring the driving ability, the two-side driving can be synchronized reliably, with good stability. The integrated foot-operated hydraulic pump has a small and compact structure, which is convenient to move along with the lifting vehicle. The integrated transmission wheel and guiding device and limiting device ensure that the carrier plate will not get stuck during entry and exit, the limiting is convenient and reliable, and there will be no overshoot when in place, being stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the structural schematic diagram of the main body lifting frame of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the reversible limiting mechanism of the present utility model;

[0019] Figure 4 Structural schematic diagram of the side guide wheel set of the present utility model;

[0020] Figure 5 Structural schematic diagram of the transmission wheel set of the present utility model;

[0021] Figure 6 Schematic diagram of the lowered state of the present utility model. Specific embodiments

[0022] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] Embodiment

[0024] Refer to Figures 1-6 , a manual hydraulic plate lifting truck, including a plate 10, a flip limit mechanism 20, a side guide wheel set 30, a transmission wheel set 40, a main body lifting frame 50, universal casters 60, a fixed limit mechanism 70, double-sided hydraulic cylinders 80, a push bar handle 90, and a foot-operated hydraulic pump 100. The side guide wheel set 30 and the transmission wheel set 40 are arranged on both sides above the main body lifting frame 50, and the side guide wheel set 30 and the transmission wheel set 40 are distributed crosswise at equal intervals. The flip limit mechanism 20 and the fixed limit mechanism 70 are arranged at the front and rear ends above the main body lifting frame 50. The main body lifting frame 50 is composed of an upper frame plane lifting group 501, an upper support frame 502, a lower frame group 503, a hydraulic cylinder thrust rod 504, a lower support frame 505, and a hydraulic cylinder fixing rod 506. The double-sided hydraulic cylinders 80 are installed on the hydraulic cylinder fixing rod 506, and the double-sided hydraulic cylinders 80 drive a scissor link mechanism composed of the upper support frame 502 and the lower support frame 505 through the hydraulic cylinder thrust rod 504, driving the upper frame plane lifting group 501 installed on the scissor link mechanism to lift and lower.

[0025] The flip limit mechanism 20 is composed of a limit block 201, a flip limit pin rod 202, a flip hinge 203, and a flip base 204. The limit block 201 is rotatably connected to the flip base 204 through the flip hinge 203. The flip limit pin rod 202 is arranged on the limit block 201. The flip base 204 is locked at the rear end of the upper frame plane lifting group 501. The flip limit mechanism 20 cooperates with the fixed limit mechanism 70 to prevent the plate from running out of the lifting truck during the in-place and transfer processes.

[0026] The side guide wheel set 30 is composed of a mounting base 301, a side guide wheel adjusting plate 302, and side guide wheels 303. The mounting base 301 is locked to the side of the upper frame plane lifting set 501 to realize the guiding function of the actual side load plate. The transmission wheel set is composed of a wheel shaft mounting plate 401, a transmission wheel shaft 402, and a rubber-coated transmission wheel 403. The wheel shaft mounting plate 401 is locked to the side of the upper frame plane lifting set 501 to realize the function of rolling and transferring the load plate. The load plate 10 is smoothly transferred from the main equipment to the lifting vehicle through the side guide wheel set 30 and the transmission wheel set 40.

[0027] Four groups of the universal caster wheels 60 are provided, which are respectively installed at the four corners of the bottom of the main lifting frame 50, so that the lifting trolley has the functions of load bearing and easy pushing.

[0028] The push bar handle 90 and the foot-operated hydraulic pump 100 are installed at the front end of the lower frame set 503.

[0029] The lifting of the practical load plate is driven by a foot-operated hydraulic pump to drive a hydraulic cylinder. Through a scissor link mechanism, the lifting is fast, the operation is simple, convenient, labor-saving, the lifting height range is large, the compression rate after lowering is high, it can be seamlessly docked with the lowest layer of multiple load plates, and it can easily drive heavy and large-sized load plates, replacing the time-consuming and laborious work of multiple people collaborating to lift the load plate in the prior art, and has good application value; it is driven by bilateral hydraulic cylinders, which can ensure the driving ability and at the same time make the two-side driving synchronous and reliable, with good stability. The integrated foot-operated hydraulic pump has a small and compact structure and is convenient to move along with the lifting vehicle. The integrated transmission wheel, guiding device, and limiting device ensure that the load plate will not get stuck when entering and exiting, the limiting is convenient and reliable, and it will not overshoot when in place, and is stable and reliable.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A manual hydraulic pallet lift truck, characterized in that: It includes a carrier board (10), a flip-over limiting mechanism (20), side guide wheel sets (30), transmission wheel sets (40), a main body lifting frame (50), universal casters (60), a fixed limiting mechanism (70), double-sided hydraulic cylinders (80), push rod handles (90), and a foot-operated hydraulic pump (100). The side guide wheel sets (30) and the transmission wheel sets (40) are arranged on both sides above the main body lifting frame (50), and the side guide wheel sets (30) and the transmission wheel sets (40) are distributed crosswise at equal intervals. The flip-over limiting mechanism (20) and the fixed limiting mechanism (70) are arranged at the front and rear ends above the main body lifting frame (50). The main body lifting frame (50) is composed of an upper frame plane lifting group (501), an upper support frame (502), a lower frame group (503), a hydraulic cylinder thrust rod (504), a lower support frame (505), and a hydraulic cylinder fixing rod (506). The double-sided hydraulic cylinders (80) are installed on the hydraulic cylinder fixing rod (506), and the double-sided hydraulic cylinders (80) drive a scissor-link mechanism composed of the upper support frame (502) and the lower support frame (505) through the hydraulic cylinder thrust rod (504), driving the upper frame plane lifting group (501) installed on the scissor-link mechanism to lift and lower.

2. The manual hydraulic pallet lift truck according to claim 1, characterized in that: The flip-over limiting mechanism (20) is composed of a limiting block (201), a flip-over limiting pin rod (202), a flip-over hinge (203), and a flip-over base (204). The limiting block (201) is rotatably connected to the flip-over base (204) through the flip-over hinge (203). The flip-over limiting pin rod (202) is arranged on the limiting block (201), and the flip-over base (204) is locked to the rear end of the upper frame plane lifting group (501).

3. The manual hydraulic pallet lift truck according to claim 1, characterized in that: The side guide wheel sets (30) are composed of a mounting base (301), side guide wheel adjusting plates (302), and side guide wheels (303). The mounting base (301) is locked to the side of the upper frame plane lifting group (501).

4. The manual hydraulic pallet lift truck according to claim 1, characterized in that: The transmission wheel sets are composed of a wheel shaft mounting plate (401), transmission wheel shafts (402), and rubber-coated transmission wheels (403). The wheel shaft mounting plate (401) is locked to the side of the upper frame plane lifting group (501).

5. The manual hydraulic carrier lift truck according to claim 1, characterized in that: There are four groups of the universal casters (60), which are respectively installed at the four corners of the bottom of the main body lifting frame (50).

6. The manual hydraulic carrier lifting truck according to claim 1, characterized in that: The push rod handles (90) and the foot-operated hydraulic pump (100) are installed at the front end of the lower frame group (503).

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