Hydraulic lifting device of electric forklift

Abstract

The utility model relates to the field of electric forklifts, and discloses an electric forklift hydraulic lifting device which comprises two bottom plates, the two bottom plates are horizontally distributed in parallel, a support is arranged on the top faces of the two bottom plates, first sliding rails are arranged on the outer walls of the two sides of the support correspondingly, and the two first sliding rails are slidably connected with first sliding blocks correspondingly; a two-way threaded rod is arranged between the two first sliding blocks in a penetrating mode, the two ends of the two-way threaded rod are each sleeved with a movable plate, fork plates are arranged on the front faces of the two movable plates, and second sliding rails are arranged on the two inner walls of the support; according to the forklift frame, the two fork plates are driven to move relatively through movement of the two moving plates, so that the two fork plates on the forklift frame can bear goods of different sizes, the practicability of the forklift frame is improved, the distance between a pressing plate and the fork plates is adjusted, and therefore through cooperation of the pressing plate and the fork plates, goods of different sizes can be borne. And goods of different sizes can be pressed and fixed, so that the forklift is safer in the transportation process, and the probability of goods loss is reduced.

Description

Technical Field

[0001] The present application relates to the field of electric forklifts, and in particular to a hydraulic lifting device for electric forklifts. Background Art

[0002] In order to improve the efficiency of cargo handling, people have invented many machines to assist workers in carrying cargo, such as forklifts. Forklifts can transport heavy cargo over short distances and medium and long distances. In reality, the distance between the two forks on the forklift is fixed. This will result in the two forks being unable to carry the cargo when the size of the cargo is smaller than the distance between the two forks. Moreover, when the forklift is pushed to move, if the road surface is uneven, the fork arm of the forklift is in a tilted state, which can easily cause the cargo assembled on the surface of the forklift frame to slip off, and the cargo will collide with the ground and be damaged, resulting in poor safety. Utility Model Content

[0003] In order to solve the problem that when the size of the goods is smaller than the distance between the two forks, the two forks cannot carry the goods, and if the road surface is uneven, the fork arm of the forklift is in a tilted state, which may easily cause the goods assembled on the forklift frame surface to slide off and the goods to collide with the ground and be damaged, the present application provides a hydraulic lifting device for an electric forklift.

[0004] This application provides a technical solution that adopts the following:

[0005] A hydraulic lifting device for an electric forklift comprises a base plate, wherein two base plates are provided and are horizontally and parallelly distributed, a bracket is provided on the top surfaces of the two base plates, first slide rails are provided on the outer walls on both sides of the bracket, the two first slide rails are slidably connected with first sliders, a bidirectional threaded rod is passed through the two first sliders, movable plates are sleeved on both ends of the bidirectional threaded rod, fork plates are provided on the front sides of the two movable plates, second slide rails are provided on the two inner walls of the bracket, and a downward pressing fixing component is provided between the two second slide rails.

[0006] Preferably, the pressing and fixing assembly includes a second sliding block, two second sliding blocks are provided, and are respectively slidably connected to two second sliding rails, a connecting plate is provided between the two second sliding blocks, and pressure plates are provided at both ends of the bottom surface of the connecting plate.

[0007] Preferably, the bracket is arranged in a concave shape, and a second hydraulic cylinder is provided on the inner bottom wall of the bracket, and the output end of the second hydraulic cylinder is connected to the connecting plate.

[0008] Preferably, a connecting frame is provided on the top surface of the bracket, side plates are provided on both sides of the connecting frame, and a first hydraulic cylinder is provided on the bottom surfaces of the two side plates, and the output ends of the two first hydraulic cylinders are respectively connected to the two first sliding blocks.

[0009] Preferably, two sliding rods are provided between the two movable plates, the two sliding rods are located above and below the bidirectional threaded rod, and the two ends of the two sliding rods respectively pass through the two movable plates and extend outward to be connected to the two first sliding blocks respectively, and one end of the bidirectional threaded rod passes through the first sliding block and extends outward to be connected to the output end of the motor.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] 1. The output end of the motor drives the bidirectional threaded rod to rotate, and the rotation of the bidirectional threaded rod drives the two moving plates thereon to move relative to each other along the horizontal direction of the bidirectional threaded rod. The movement of the two moving plates drives the two fork plates to move relative to each other, so that the two fork plates on the forklift frame can carry goods of different sizes, thereby improving the practicality of the forklift frame. In addition, the two moving plates can also move along the horizontal direction of the two sliding rods while moving along the bidirectional threaded rod, thereby increasing the stability of the movement of the moving plates and the fork plates;

[0012] 2. The connecting plate is driven to move vertically downward through the output end of the second hydraulic cylinder. The downward movement of the connecting plate drives the second sliding blocks on both sides to move downward along the vertical direction of the two second slide rails respectively, and the downward movement of the connecting plate drives the two pressure plates to move downward. By adjusting the distance between the pressure plate and the fork plate, and thus through the cooperation of the pressure plate and the fork plate, goods of different sizes can be compacted and fixed, making the forklift safer during transportation and reducing the probability of goods loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural front view of an embodiment of the application;

[0014] Figure 2 It is a rear view of the structure of the embodiment of the application;

[0015] Figure 3 It is a structural side view of an embodiment of the application.

[0016] Explanation of the accompanying drawings: 1. bottom plate; 2. fork plate; 3. slide rod; 4. bidirectional threaded rod; 5. movable plate; 6. bracket; 7. pressure plate; 8. first hydraulic cylinder; 9. first slide rail; 10. first slider; 11. motor; 12. second hydraulic cylinder; 13. second slide rail; 14. second slider; 15. connecting frame; 16. side plate; 17. connecting plate. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-3 This application is described in further detail.

[0018] The present application embodiment discloses a hydraulic lifting device for an electric forklift, referring to Figure 1 and Figure 3 , including a bottom plate 1, two bottom plates 1 are provided, and are horizontally distributed in parallel, a bracket 6 is fixedly provided on the top surface of the two bottom plates 1, a first slide rail 9 is fixedly provided on the outer walls of both sides of the bracket 6, the two first slide rails 9 are slidably connected with a first slider 10, a bidirectional threaded rod 4 is passed through the two first sliders 10, the two ends of the bidirectional threaded rod 4 are respectively rotatably connected with the two first sliders 10, the two ends of the bidirectional threaded rod 4 are sleeved with a moving plate 5, the moving plate 5 is threadedly connected with the bidirectional threaded rod 4, a fork plate 2 is fixedly provided on the front of the two moving plates 5, two sliding rods 3 are slidably provided between the two moving plates 5, the two sliding rods 3 are located above and below the bidirectional threaded rod 4, and the two ends of the two sliding rods 3 respectively penetrate the two moving plates 5, and extend outwards to be respectively connected with The two first sliders 10 are fixedly connected, one end of the bidirectional threaded rod 4 passes through the first slider 10, and extends outward to be connected to the output end of the motor 11, the motor 11 is detachably connected to the first slider 10, the output end of the motor 11 drives the bidirectional threaded rod 4 to rotate, the rotation of the bidirectional threaded rod 4 drives the two movable plates 5 thereon to move relative to each other along the horizontal direction of the bidirectional threaded rod 4, the movement of the two movable plates 5 drives the two fork plates 2 to move relative to each other, so that the two fork plates 2 on the forklift frame can carry goods of different sizes, improving the practicality of the forklift frame, and the two movable plates 5 can also move along the horizontal direction of the two slide bars 3 while moving along the bidirectional threaded rod 4, thereby increasing the stability of the movement of the movable plates 5 and the fork plates 2;

[0019] A connecting frame 15 is fixedly provided on the top surface of the bracket 6, and side panels 16 are fixedly provided on both sides of the connecting frame 15. The bottom surfaces of the two side panels 16 are detachably provided with a first hydraulic cylinder 8, and the output ends of the two first hydraulic cylinders 8 are detachably connected to the two first sliding blocks 10 respectively. The output ends of the two first hydraulic cylinders 8 simultaneously drive the two first sliding blocks 10 to move up and down along the vertical direction of the two first slide rails 9 respectively, so that a forklift can deliver various goods.

[0020] Reference Figure 2, the two inner walls of the bracket 6 are fixedly provided with a second slide rail 13, and a downward pressing fixing component is provided between the two second slide rails 13, and the downward pressing fixing component includes a second slider 14, and the second slider 14 is provided with two, which are respectively slidably connected with the two second slide rails 13, and a connecting plate 17 is fixedly provided between the two second sliders 14, and a pressing plate 7 is fixedly provided at both ends of the bottom surface of the connecting plate 17. The bracket 6 is arranged in a concave shape, and the inner bottom wall of the bracket 6 is detachably provided with a second hydraulic cylinder 12, and the output end of the second hydraulic cylinder 12 is detachably connected to the connecting plate 17, and the connecting plate 17 is driven by the output end of the second hydraulic cylinder 12 to move vertically downward, and the downward movement of the connecting plate 17 drives the second sliders 14 on both sides to move downward along the vertical direction of the two second slide rails 13 respectively, and the downward movement of the connecting plate 17 drives the two pressing plates 7 to move downward, and through the distance between the pressure regulating plate 7 and the fork plate 2, the pressure plate 7 and the fork plate 2 can cooperate to press and fix goods of different sizes, so that the forklift is safer during transportation and the probability of loss of goods is reduced.

[0021] The implementation principle of one embodiment of the present application is as follows: when in use, the bidirectional threaded rod 4 is driven to rotate by the output end of the motor 11, and the rotation of the bidirectional threaded rod 4 drives the two movable plates 5 thereon to move relative to each other along the horizontal direction of the bidirectional threaded rod 4, and the movement of the two movable plates 5 drives the two fork plates 2 to move relative to each other, so that the two fork plates 2 on the forklift frame can carry goods of different sizes, and the output ends of the two first hydraulic cylinders 8 simultaneously drive the two first sliding blocks 10 to move up and down respectively along the vertical direction of the two first slide rails 9, so that the forklift can fork various goods, and at the same time, the output end of the second hydraulic cylinder 12 drives the connecting plate 17 to move vertically downward, and the downward movement of the connecting plate 17 drives the second sliding blocks 14 on both sides to move downward respectively along the vertical direction of the two second slide rails 13, and the downward movement of the connecting plate 17 drives the two pressing plates 7 to move downward, and through the distance between the pressure regulating plate 7 and the fork plate 2, and thus through the cooperation of the pressing plate 7 and the fork plate 2, goods of different sizes can be pressed and fixed, making the forklift safer during transportation and reducing the probability of loss of goods.

[0022] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0023] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0024] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0025] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hydraulic lifting device for an electric forklift, comprising a base plate (1), characterized in that: The bottom plates (1) are provided with two and are horizontally distributed in parallel. A bracket (6) is provided on the top surfaces of the two bottom plates (1). The outer walls on both sides of the bracket (6) are provided with first slide rails (9). The two first slide rails (9) are slidably connected with first sliders (10). A bidirectional threaded rod (4) is passed through the two first sliders (10). Both ends of the bidirectional threaded rod (4) are sleeved with movable plates (5). The front faces of the two movable plates (5) are provided with fork plates (2). The inner walls of the bracket (6) are provided with second slide rails (13). A downward pressing fixing component is provided between the two second slide rails (13).

2. The electric forklift hydraulic lifting device according to claim 1, characterized in that: The downward pressing and fixing assembly comprises a second sliding block (14). Two second sliding blocks (14) are provided and are respectively slidably connected to two second sliding rails (13). A connecting plate (17) is provided between the two second sliding blocks (14). Both ends of the bottom surface of the connecting plate (17) are provided with pressing plates (7).

3. The electric forklift hydraulic lifting device according to claim 2, characterized in that: The bracket (6) is arranged in a concave shape, and a second hydraulic cylinder (12) is arranged on the inner bottom wall of the bracket (6), and the output end of the second hydraulic cylinder (12) is connected to the connecting plate (17).

4. The electric forklift hydraulic lifting device according to claim 1, characterized in that: A connecting frame (15) is provided on the top surface of the bracket (6), side plates (16) are provided on both sides of the connecting frame (15), and a first hydraulic cylinder (8) is provided on the bottom surface of the two side plates (16), and the output ends of the two first hydraulic cylinders (8) are respectively connected to the two first slide blocks (10).

5. The electric forklift hydraulic lifting device according to claim 1, characterized in that: Two slide bars (3) are provided between the two movable plates (5), the two slide bars (3) are located above and below the bidirectional threaded rod (4), and two ends of the two slide bars (3) respectively penetrate the two movable plates (5) and extend outwards to be connected to two first sliders (10), respectively; one end of the bidirectional threaded rod (4) penetrates the first slider (10) and extends outwards to be connected to the output end of the motor (11).

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