Small crane for warehouse

Abstract

The utility model discloses a small crane for a warehouse, which belongs to the technical field of cranes and comprises a base, hydraulic cylinders are fixedly connected to two sides of the top of the base, and lifting platforms are fixedly connected to output ends of the hydraulic cylinders; the positioning assembly comprises a driving motor, two sliding frames and two positioning plates, the two positioning plates are slidably connected to the interiors of the corresponding sliding frames correspondingly, fixing mechanisms used for being fixed to the sliding frames are arranged in the positioning plates, and the two sliding frames are slidably connected to the two sides of the bottom of the base correspondingly; racks are fixedly connected to the sides, close to each other, of the two sliding frames. And universal wheels are fixedly connected to the four corners of the bottom of the movable seat. The two positioning plates are controlled to be close to each other, so that goods are positioned, the carrying safety is guaranteed, the height of the positioning plates can be conveniently adjusted, and the positioning plates can be conveniently disassembled and assembled, and therefore goods of different sizes can be conveniently cleaned and adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a small crane for warehouses. Background Art

[0002] A crane refers to a multi-action lifting machine that can lift heavy objects vertically and carry them horizontally within a certain range. It is also called a crane. The patent document with publication number CN206751291U discloses a small crane for warehouses, including a crane base, a battery is provided on the crane base, a first hydraulic cylinder is provided on one side of the battery, a first piston rod is provided on the top of the first hydraulic cylinder, a first hydraulic pump is provided on one side of the first hydraulic cylinder, a second hydraulic cylinder is provided on the other side of the battery, a second piston rod is provided on the top of the second hydraulic cylinder, a second hydraulic pump is provided on one side of the second hydraulic cylinder, and hydraulic oil is provided on one side of the first hydraulic pump and the second hydraulic pump.

[0003] The loading platform in the above technical solution lacks a fixing structure for the goods, which poses a safety hazard during the lifting and transportation process. In addition, the above crane is not convenient to move and is not flexible enough to use. Therefore, we propose a small crane for warehouses to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a small crane for warehouse to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A small crane for warehouse, comprising:

[0007] A base, both sides of the top of the base are fixedly connected with hydraulic cylinders, and the output end of the hydraulic cylinder is fixedly connected with a lifting platform;

[0008] A positioning assembly, the positioning assembly comprising a driving motor, two sliding frames and two positioning plates, the two positioning plates are respectively slidably connected in the corresponding sliding frames, a fixing mechanism for fixing with the sliding frames is arranged in the positioning plates, and the two sliding frames are respectively slidably connected to the two sides of the bottom of the base, the two sliding frames are fixedly connected with racks on the sides close to each other, the driving motor is fixedly connected to the bottom of the lifting platform, and a driving gear is fixedly connected to the output shaft of the driving motor, and the two racks are respectively meshed with the front and rear sides of the driving gear;

[0009] The movable seat has universal wheels fixedly connected to the four corners of the bottom of the movable seat, a groove is provided at the bottom of the base, the movable seat is slidably connected in the groove, and a driving mechanism for driving the movable seat to rise and fall is arranged in the groove.

[0010] Preferably, the fixing mechanism includes a card plate, a pull plate and a connecting column, a vertical groove is provided at the bottom of the positioning plate, the pull plate is slidably connected in the vertical groove, and a transverse hole is provided on the side wall of the vertical groove, the card plate is slidably connected in the transverse hole, a plurality of card slots are provided on the inner wall of one side of the sliding frame, one side of the card plate is movably carded in the corresponding card slot, a square plate is fixedly installed on the other side of the card plate, an inclined hole is provided on the front side of the square plate, the connecting column is movably inserted in the inclined hole, and the front and rear ends of the connecting column are fixedly connected with vertical rods, and the top ends of the two vertical rods are fixedly connected to the bottom of the pull plate.

[0011] Preferably, a compression spring and a pull rod are fixedly connected to the top of the pull plate, the top end of the compression spring is fixedly connected to the top inner wall of the vertical groove, and the top end of the pull rod is fixedly connected to a handle.

[0012] Preferably, a return spring is fixedly connected to one side of the square plate, and the other end of the return spring is fixedly connected to the side wall of the vertical groove.

[0013] Preferably, the driving mechanism includes a rotating motor, a bidirectional screw and two slides, the two slides are both slidably connected in the groove, and the two slides are threadedly sleeved on the outside of the bidirectional screw, the outside of the bidirectional screw is provided with two external threads with opposite rotation directions, and one end of the bidirectional screw is fixedly connected to the output shaft of the rotating motor, and the rotating motor is fixedly installed on one side inner wall of the groove, the other end of the bidirectional screw is rotatably connected to the other side inner wall of the groove, the bottom of the slide is fixedly connected to an inclined plate, and the movable seat is slidably sleeved on the outside of the two inclined plates.

[0014] Preferably, two limiting grooves are provided on the top inner wall of the groove, the top of the slide plate is fixedly connected to a limiting plate, and the limiting plate is slidably connected in the corresponding limiting grooves.

[0015] Preferably, guide seats are fixedly connected to both the front and rear sides of the sliding frame, guide grooves are provided on both the front and rear sides of the lifting platform, and the two guide seats are slidably connected in the corresponding guide grooves respectively.

[0016] In the utility model, a small crane for warehouse is described, which places goods on a lifting platform, then starts a driving motor to drive a driving gear to rotate, the driving gear drives two sliding frames to approach each other through meshing with two racks, the two sliding frames drive two positioning plates to approach each other, thereby clamping and fixing the goods, and then starts a hydraulic cylinder to control the lifting platform to move up and down, thereby realizing the handling of goods;

[0017] The lifting platform is a kind of small warehouse crane, and the ...

[0018] The utility model has a reasonable structural design, and the positioning of goods is achieved by controlling the two positioning plates to approach each other, thereby ensuring the safety of transportation, and facilitating the height adjustment and disassembly of the positioning plates, thereby facilitating cleaning and adapting to goods of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a small crane for warehouse proposed by the utility model;

[0020] Figure 2 This is a schematic cross-sectional view of a small crane for warehouses proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the positioning assembly proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the mobile seat proposed by the utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the fixing mechanism proposed in the utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of the fixing mechanism, sliding frame and positioning plate proposed in the utility model;

[0025] Figure 7 for Figure 6 A partial enlarged view of part A;

[0026] Figure 8 The utility model is a partial three-dimensional structural schematic diagram of the fixing mechanism.

[0027] In the figure: 1. base; 2. hydraulic cylinder; 3. lifting platform; 4. sliding frame; 5. positioning plate; 6. guide seat; 7. pull rod; 701, handle; 8. rack; 9. driving motor; 10. driving gear; 11. rotating motor; 12. bidirectional screw; 13. slide plate; 14. limit plate; 15. inclined plate; 16. moving seat; 17. pull plate; 18. reset spring; 19. connecting column; 20. square plate; 21. clamping plate; 22. compression spring; 23. vertical rod; 24. universal wheel. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Reference Figure 1-8 , a small crane for warehouse, comprising:

[0030] A base 1, both sides of the top of the base 1 are fixedly connected with a hydraulic cylinder 2, and the output end of the hydraulic cylinder 2 is fixedly connected with a lifting platform 3;

[0031] Positioning assembly, the positioning assembly includes a driving motor 9, two sliding frames 4 and two positioning plates 5, the two positioning plates 5 are respectively slidably connected in the corresponding sliding frames 4, a fixing mechanism for fixing with the sliding frames 4 is provided in the positioning plates 5, and the two sliding frames 4 are respectively slidably connected to the bottom sides of the base 1, and the sides of the two sliding frames 4 close to each other are fixedly connected with racks 8, the driving motor 9 is fixedly connected to the bottom of the lifting platform 3, and the output shaft of the driving motor 9 is fixedly connected with a driving gear 10, and the two racks 8 are respectively meshed with the front and rear sides of the driving gear 10;

[0032] The movable seat 16 has universal wheels 24 fixedly connected to the four corners of the bottom of the movable seat 16. A groove is provided at the bottom of the base 1. The movable seat 16 is slidably connected in the groove. A driving mechanism for driving the movable seat 16 to rise and fall is provided in the groove.

[0033] In this embodiment, the fixing mechanism includes a card plate 21, a pull plate 17 and a connecting column 19. A vertical groove is provided at the bottom of the positioning plate 5. The pull plate 17 is slidably connected in the vertical groove, and a transverse hole is provided on the side wall of the vertical groove. The card plate 21 is slidably connected in the transverse hole. A plurality of card slots are provided on the inner wall of one side of the sliding frame 4. One side of the card plate 21 is movably connected in the corresponding card slot. A square plate 20 is fixedly installed on the other side of the card plate 21. An oblique hole is provided on the front side of the square plate 20. The connecting column 19 is movably inserted in the oblique hole, and the connecting column 19 The front and rear ends are fixedly connected with vertical rods 23, the top ends of the two vertical rods 23 are fixedly connected to the bottom of the pull plate 17, the top of the pull plate 17 is fixedly connected with a compression spring 22 and a pull rod 7, the top end of the compression spring 22 is fixedly connected to the top inner wall of the vertical groove, and the top end of the pull rod 7 is fixedly connected with a handle 701, so as to facilitate pulling the pull plate 17 upward, and a reset spring 18 is fixedly connected to one side of the square plate 20, and the other end of the reset spring 18 is fixedly connected to the side wall of the vertical groove, so as to reset and assist in positioning the square plate 20.

[0034] In this embodiment, the driving mechanism includes a rotating motor 11, a bidirectional screw 12 and two slides 13. The two slides 13 are both slidably connected in the groove, and the two slides 13 are threadedly sleeved on the outside of the bidirectional screw 12. The outside of the bidirectional screw 12 is provided with two external threads with opposite rotation directions, and one end of the bidirectional screw 12 is fixedly connected to the output shaft of the rotating motor 11, and the rotating motor 11 is fixedly installed on one side inner wall of the groove, and the other end of the bidirectional screw 12 is rotatably connected to the other side inner wall of the groove. The bottom of the slide 13 is fixedly connected with an inclined plate 15, and the moving seat 16 is slidably sleeved on the outside of the two inclined plates 15. Two limit grooves are provided on the top inner wall of the groove, and the top of the slide 13 is fixedly connected with a limit plate 14, and the limit plate 14 is slidably connected in the corresponding limit groove, thereby guiding the slide 13.

[0035] In this embodiment, the front and rear sides of the slide frame 4 are fixedly connected with guide seats 6, the front and rear sides of the lifting platform 3 are provided with guide grooves, and the two guide seats 6 are respectively slidably connected in the corresponding guide grooves to guide the slide frame 4.

[0036] In this embodiment, when in use, the goods are placed on the lifting platform 3, and then the driving motor 9 is started to drive the driving gear 10 to rotate. The driving gear 10 drives the two sliding frames 4 to move closer to each other through meshing with the two racks 8, and the two sliding frames 4 drive the two positioning plates 5 to move closer to each other, so that the goods are clamped and fixed, and then the lifting platform 3 is controlled to move up and down by starting the hydraulic cylinder 2, so as to realize the transportation of the goods;

[0037] In this embodiment, when in use, a small crane for a warehouse can be used. The handle 701 is pulled upward to drive the pull rod 7 and the pull plate 17 to move upward. The pull plate 17 drives the connecting column 19 to move upward through the two vertical rods 23. The connecting column 19 drives the square plate 20 and the card plate 21 to move horizontally by cooperating with the inclined hole, so that the card plate 21 is disengaged from the card slot, releasing the fixation of the positioning plate 5, so that the positioning plate 5 can be moved up and down to adjust its height to meet the needs of goods of different heights. Then, the card plate 21 is inserted into the corresponding card slot by loosening the pull ring to fix the positioning plate 5, and the positioning plate 5 is pulled upward to be disassembled, so that the surface of the positioning plate 5 can be easily cleaned, and the bidirectional screw 12 can be driven to rotate by starting the rotating motor 11. The bidirectional screw 12 moves away from each other with the two slides 13, and the two inclined plates 15 drive the moving seat 16 to move downward by sliding with the moving seat 16, so that the universal wheel 24 contacts the ground, so as to facilitate the movement of the crane.

[0038] The above is a detailed introduction to a small crane for warehouse provided by the utility model. The principle and implementation method of the utility model are described in detail using specific embodiments. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A small crane for warehouse, characterized in that: include: A base (1), wherein both sides of the top of the base (1) are fixedly connected to a hydraulic cylinder (2), and a lifting platform (3) is fixedly connected to the output end of the hydraulic cylinder (2); A positioning assembly, the positioning assembly comprising a driving motor (9), two sliding frames (4) and two positioning plates (5), the two positioning plates (5) are respectively slidably connected in the corresponding sliding frames (4), a fixing mechanism for fixing with the sliding frames (4) is arranged in the positioning plates (5), and the two sliding frames (4) are respectively slidably connected to the two sides of the bottom of the base (1), the two sliding frames (4) are fixedly connected to the sides close to each other with racks (8), the driving motor (9) is fixedly connected to the bottom of the lifting platform (3), and a driving gear (10) is fixedly connected to the output shaft of the driving motor (9), and the two racks (8) are respectively meshed with the front and rear sides of the driving gear (10); A movable seat (16), wherein the four corners of the bottom of the movable seat (16) are fixedly connected with universal wheels (24), the bottom of the base (1) is provided with a groove, the movable seat (16) is slidably connected in the groove, and a driving mechanism for driving the movable seat (16) to rise and fall is arranged in the groove.

2. A small crane for warehouse according to claim 1, characterized in that: The fixing mechanism comprises a card plate (21), a pull plate (17) and a connecting column (19); a vertical groove is provided at the bottom of the positioning plate (5); the pull plate (17) is slidably connected in the vertical groove; a transverse hole is provided on the side wall of the vertical groove; the card plate (21) is slidably connected in the transverse hole; a plurality of card slots are provided on the inner wall of one side of the sliding frame (4); one side of the card plate (21) is movably engaged in the corresponding card slot; a square plate (20) is fixedly installed on the other side of the card plate (21); an inclined hole is provided on the front side of the square plate (20); the connecting column (19) is movably inserted in the inclined hole; and the front and rear ends of the connecting column (19) are fixedly connected with vertical rods (23); the top ends of the two vertical rods (23) are fixedly connected to the bottom of the pull plate (17).

3. A small crane for warehouse according to claim 2, characterized in that: The top of the pull plate (17) is fixedly connected to a compression spring (22) and a pull rod (7), the top end of the compression spring (22) is fixedly connected to the top inner wall of the vertical groove, and the top end of the pull rod (7) is fixedly connected to a handle (701).

4. A small crane for warehouse according to claim 3, characterized in that: A return spring (18) is fixedly connected to one side of the square plate (20), and the other end of the return spring (18) is fixedly connected to the side wall of the vertical groove.

5. A small crane for warehouse according to claim 1, characterized in that: The driving mechanism comprises a rotating motor (11), a bidirectional screw (12) and two slide plates (13), the two slide plates (13) are both slidably connected in the groove, and the two slide plates (13) are both threadedly sleeved on the outer side of the bidirectional screw (12), the outer side of the bidirectional screw (12) is provided with two external threads with opposite rotation directions, one end of the bidirectional screw (12) is fixedly connected to the output shaft of the rotating motor (11), and the rotating motor (11) is fixedly mounted on one inner wall of the groove, the other end of the bidirectional screw (12) is rotatably connected to the other inner wall of the groove, the bottom of the slide plate (13) is fixedly connected to an inclined plate (15), and the moving seat (16) is slidably sleeved on the outer sides of the two inclined plates (15).

6. A small crane for warehouse use according to claim 5, characterized in that: Two limiting grooves are provided on the inner wall at the top of the groove, and the top of the slide plate (13) is fixedly connected to a limiting plate (14), and the limiting plate (14) is slidably connected in the corresponding limiting grooves.

7. A small warehouse crane according to claim 1, characterized in that: The front and rear sides of the sliding frame (4) are fixedly connected with guide seats (6), the front and rear sides of the lifting platform (3) are provided with guide grooves, and the two guide seats (6) are respectively slidably connected in the corresponding guide grooves.

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