Forklift type hoisting device

Abstract

The utility model provides a forklift type hoisting device, which relates to the field of hoisting machinery, comprises a suspension arm and a pallet fork seat matched with a pallet fork, and is characterized in that the rear end of the suspension arm is connected with the pallet fork seat through a suspension arm support, and the front end of the suspension arm is connected with a hoisting beam used for installing a hoisting hook; the suspension arm is fixedly connected with the suspension arm support, the suspension arm support is hinged to the pallet fork seat through a connecting shaft, so that an angle formed between the suspension arm support and the pallet fork seat is adjustable, and the suspension arm support is further connected with a fixing piece used for fixing the angle formed between the suspension arm support and the pallet fork seat; according to the utility model, the angle between the suspension arm and the pallet fork seat can be adjusted, so that the suspension arm has a certain elevation angle, and the lifting height can still be ensured under the condition that the lifting height of the pallet fork is limited, so that the problem that the lifting height is limited due to the limitation of the lifting height of the pallet fork is solved; and the hoisting requirements when on-site facilities are dense and other obstacles exist around an object to be hoisted are met.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting machinery, in particular to a forklift type hoisting device. Background Art

[0002] During the inspection and maintenance of equipment and facilities, due to the complex environment of the construction site, crane operations are often unable to complete the lifting operations well due to environmental factors, which brings difficulties to the lifting of equipment and facilities during maintenance. The previous method is to use a gantry and a hand-pulled hoist to gradually carry out horizontal and oblique pulling methods to move equipment and facilities that are inconvenient to use a crane for construction. There are many unsafe factors in this operation process, which can easily cause dangerous safety factors such as slip chains and gantry offsets in the hoisted equipment, bringing irreversible harm to safe production.

[0003] In the prior art, the utility model patent with announcement number CN204689575U discloses a lifting device for use with a forklift. By using the lifting device in conjunction with the forklift, the forklift can be used to lift equipment without a vehicle. When the equipment needs to be lifted, the lifting height is controlled by controlling the height of the fork teeth. Slowly raising the forklift can drive the lifting device to rise to lift the equipment, so that the forklift has the function of a crane and achieves the purpose of lifting the equipment. However, in the above structure, the lifting height depends entirely on the lifting height of the fork teeth. In actual operation, since the lifting height of the fork teeth of an ordinary forklift is limited, the lifting height based on the above lifting device is also limited. Especially in the case of complex working conditions, especially when the on-site facilities are dense and there are other obstacles around the objects to be lifted, the use of the above lifting device may be limited. Utility Model Content

[0004] In view of the above problems existing in the prior art, the utility model provides a forklift type lifting device capable of adjusting the angle of a lifting arm to increase the adaptability with a cargo fork.

[0005] The utility model solves the above-mentioned technical problems with the following technical solutions: A forklift type lifting device, comprising a lifting arm and a fork seat adapted to a cargo fork, characterized in that the rear end of the lifting arm is connected to the cargo fork seat via a lifting arm support, and the front end of the lifting arm is connected to a lifting beam for installing a lifting hook; the lifting arm is fixedly connected to the lifting arm support, and the lifting arm support is hingedly connected to the cargo fork seat via a connecting shaft so that the angle formed between the lifting arm support and the cargo fork seat can be adjusted, and the lifting arm support is also connected to a fixing member for fixing the angle formed between the lifting arm support and the cargo fork seat.

[0006] Furthermore, the fork seat is provided with a group of strip-shaped sockets adapted to the forks.

[0007] Furthermore, the fixing member adopts a fixed shaft structure.

[0008] Furthermore, the boom support is provided with a connecting hole for the fixed shaft to pass through, and the fork seat is provided with at least two groups of fixing holes for the fixed shaft to pass through, the two groups of fixing holes are arranged up and down, and when the boom support rotates around the connecting shaft relative to the fork seat, the connecting hole can correspond to the coaxial line of the two groups of fixing holes respectively.

[0009] Furthermore, the axial direction of the connecting shaft is perpendicular to the length direction of the boom.

[0010] Furthermore, the rear end of the hoisting beam is embedded in the boom in a manner that it can be telescopic relative to the boom, and a beam fixing member for fixing the hoisting beam and the boom is connected between the hoisting beam and the boom.

[0011] Furthermore, the hoisting beam is connected to the suspension arm in a relatively sliding manner.

[0012] Furthermore, the beam fixing member adopts a pin shaft structure, the boom is provided with a hole 1 for the pin shaft to pass through, and the lifting beam is provided with a plurality of holes 2 for the pin shaft to pass through arranged along its length direction corresponding to the hole 1.

[0013] The beneficial effects of the utility model are:

[0014] The utility model can realize the adjustable angle between the boom and the fork seat by the connection relationship between the boom support and the fork seat, so that the boom is at a certain elevation angle, so that the lifting height can still be guaranteed when the lifting height of the fork is limited, so as to solve the problem of limited lifting height due to the limited lifting height of the fork, and meet the lifting needs when the on-site facilities are dense and there are other obstacles around the objects to be lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Structural diagram of the middle boom support;

[0017] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle fork seat;

[0018] Figure 4 yes Figure 3 AA-direction cross-sectional structural diagram;

[0019] Figure 5 Figure 1 A schematic diagram of the structure of the embodiment shown in the use state;

[0020] Figure 6 It is a structural schematic diagram of another embodiment of the utility model;

[0021] Figure 7 yes Figure 1 A schematic structural diagram of another state of the embodiment shown;

[0022] In the figure: 1. fork seat, 11. fixing hole, 12. hinge hole, 13. reinforcement plate, 2. boom support, 21. first connecting hole, 22. second connecting hole, 3. boom, 31. hole one, 4. fork, 5. lifting beam, 51. hole two, 6. connecting shaft, 7. socket, 8. fixed shaft. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] like Figure 1-Figure 4 As shown, the forklift type lifting device of this embodiment includes a boom 3 and a fork seat 1 adapted to a fork 4, wherein the rear end of the boom 3 is connected to the fork seat 1 through a boom support 2, and the front end of the boom 3 is connected to a lifting beam 5 for installing a hook, and the lifting beam 5 has a hanging rod for installing a hook (not shown in the figure).

[0025] In this embodiment, the rear end of the boom 3 is welded and fixed to the boom support 2, and the boom support 2 is hingedly connected to the front of the fork seat 1 through the connecting shaft 6 located at the bottom of its front part (the front of the boom support 2 is provided with a first connecting hole 21 adapted to the connecting shaft 6, and the front connecting seat at the front of the fork seat 1 is provided with a hinge hole 12 adapted to the connecting shaft 6), so that the boom support 2 can rotate relative to the fork seat 1 around the connecting shaft 6, so that the angle formed between the boom support 2 and the fork seat 1 can be adjusted, that is, the angle formed between the boom 3 and the fork seat 1 can be adjusted. Under the premise of satisfying the above-mentioned adjustable angle, in order to ensure the stability of the connection between the boom support 2 and the fork seat 1, the boom support 2 is also connected with a fixing member for fixing the angle formed between the boom support 2 and the fork seat 1. In this embodiment, the fork seat 1 is provided with a group of strip-shaped sockets 7 adapted to the fork 4. Specifically, each strip-shaped socket 7 is adapted to the fork tine of the fork 4, and its cross-section is roughly rectangular and has a certain hole length, so that the fork can be smoothly inserted into the socket 7 and stably fork the fork seat 1.

[0026] The advantage of this technical solution is that the angle between the boom 3 and the fork seat can be adjusted so that the boom 3 can rise at a certain angle (see Figure 5 As shown in the figure, the boom is at a certain elevation angle, so that the lifting height of the front end of the boom 3 can still be guaranteed when the lifting height of the fork teeth is limited. During lifting, the height of the boom is adjusted according to the location and height of the lifting equipment, and then the forklift fork is inserted into the socket 7 of the fork seat, and the device moves flexibly and performs lifting operations with the forklift.

[0027] In a preferred embodiment of the utility model, the fixing member adopts a fixed shaft 8 structure, and the boom support 2 is provided with a second connecting hole 22 for the fixed shaft 8 to pass through, and the rear connecting seat of the fork seat 1 is provided with two groups of fixing holes 11 for the fixed shaft 8 to pass through, and the two groups of fixing holes 11 are arranged up and down, respectively, an upper fixing hole 111 and a lower fixing hole 112, and when the boom support 2 rotates around the connecting shaft 6 relative to the fork seat 1, the second connecting hole 22 can correspond to the coaxial line of the two groups of fixing holes 11, respectively, so as to allow the fixed shaft 8 to pass through and fix the boom support 2 and the fork seat 1. In other words, the boom support 2 can rotate around the connecting shaft 6 relative to the fork seat 1 to the following two states so that the boom presents two different angles: one is that the second connecting hole 22 corresponds to the coaxial line of the upper fixing hole 111, and at this time the boom 3 and the fork seat 1 are vertical (see Figure 1 Second, the second connecting hole 22 corresponds to the lower fixing hole 112 coaxially, at this time (see Figure 5 As shown). Then use the fixed shaft 8 to fix it. A reinforcing plate 13 is provided between the fork seat 1 and its front connecting seat, and between the fork seat 1 and its rear connecting seat to increase the overall stability of the fork seat 1.

[0028] In a preferred embodiment of the present invention, the axial direction of the connecting shaft 6 is perpendicular to the length direction of the boom 3, so that the hook on the boom 3 is located right in front of the forklift operator, which is convenient for the operator to observe the operation.

[0029] In a preferred embodiment of the present invention, the rear end of the hoisting beam 5 is embedded in the boom 3 in a manner that it can be telescopic relative to the boom 3. Figure 6 and Figure 7 As shown, the hoisting beam 5 is connected to the boom 3 in a relatively sliding manner, and a beam fixing member for fixing the two is connected between the hoisting beam 5 and the boom 3. The advantage of the structure is that the length of the hoisting beam can be adjusted, specifically, the length of the section from the front end of the hoisting beam 5 to the rear end of the boom 3 is adjustable, which is convenient for adjustment according to actual needs. Preferably, the beam fixing member adopts a pin structure, and the boom 3 is provided with a hole 31 for the pin to pass through, and the hoisting beam 5 is provided with a plurality of holes 51 arranged along its length direction for the pin 9 to pass through corresponding to the hole 31. After adjusting the relative position of the hoisting beam 5 and the boom 3, the two can be fixed by the pin 9 passing through the hole 31 and the corresponding hole 51.

Claims

1. A forklift type lifting device, comprising a lifting arm (3) and a fork seat (1) adapted to a fork (4), characterized in that: The rear end of the boom (3) is connected to the fork seat (1) through the boom support (2), and the front end of the boom (3) is connected to a lifting beam (5) for mounting a hook; the boom (3) is fixedly connected to the boom support (2), and the boom support (2) is hingedly connected to the fork seat (1) through a connecting shaft (6), so that the angle formed between the boom support (2) and the fork seat (1) can be adjusted, and the boom support (2) is also connected to a fixing member for fixing the angle formed between the boom support (2) and the fork seat (1).

2. The forklift type lifting device according to claim 1, characterized in that: The fork seat (1) is provided with a group of strip-shaped insertion holes (7) adapted to the forks (4).

3. The forklift type lifting device according to claim 1, characterized in that: The fixing member adopts a fixing shaft (8) structure.

4. The forklift type lifting device according to claim 3, characterized in that: The boom support (2) is provided with a second connection hole (22) for the fixed shaft (8) to pass through, and the fork seat (1) is provided with at least two groups of fixing holes (11) for the fixed shaft (8) to pass through, the two groups of fixing holes (11) are arranged up and down, and when the boom support (2) rotates around the connection shaft (6) relative to the fork seat (1), the second connection hole (22) can correspond to the two groups of fixing holes (11) on a coaxial line.

5. The forklift type lifting device according to claim 1, characterized in that: The axial direction of the connecting shaft (6) is perpendicular to the length direction of the boom (3).

6. The forklift type lifting device according to claim 1, characterized in that: The rear end of the hoisting beam (5) is embedded in the boom (3) in a manner that it can be telescopic relative to the boom (3), and a beam fixing member for fixing the hoisting beam (5) and the boom (3) is connected between the hoisting beam (5) and the boom (3).

7. The forklift type lifting device according to claim 6, characterized in that: The hoisting beam (5) is connected to the suspension arm (3) in a relatively sliding manner.

8. The forklift type lifting device according to claim 6, characterized in that: The beam fixing member adopts a pin shaft structure, the suspension arm (3) is provided with a hole (31) for the pin shaft to pass through, and the lifting beam (5) is provided with a plurality of holes (51) arranged along its length direction and for the pin shaft (9) to pass through, corresponding to the hole (31).

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