Wheel lifting mechanism applied to forklift

Abstract

The embodiment of the utility model discloses a wheel lifting mechanism applied to a forklift. The wheel lifting mechanism comprises a driving mechanism, a sliding block, a crank, a connecting rod, a pulley block and a fork. According to the wheel lifting mechanism provided by the utility model, a forklift bearing wheel lifting function can be added for a common forklift, and the height of the fork arm can be kept unchanged after the bearing wheel is lifted. When the bearing wheels are in a lifting state, the fork arms can enter and exit from the matts-shaped tray under the condition that the fork arms do not make contact with the tray, and therefore lossless forking and carrying of the matts are achieved.

Description

Technical Field

[0001] The present application relates to the field of wheel lifting mechanisms, and in particular, to a wheel lifting mechanism used on a forklift. Background Art

[0002] A pallet truck is a type of forklift, i.e. a logistics handling device used to carry goods. When in use, the forks carried by it are inserted into the holes of the pallet, and the hydraulic system is driven by manpower to lift and lower the pallet goods, and the handling operation is completed by manpower pulling. It is the simplest, most effective and most common loading and unloading and handling tool among pallet transport tools.

[0003] Currently, there are few pallet trucks on the market that are specifically used for transporting F-shaped pallets. The common ways to transport F-shaped pallets are as follows: 1. Ordinary forklift; 2. Wide-leg forklift or counterbalanced forklift.

[0004] However, if you use an ordinary forklift to push against the F-shaped pallet, the load-bearing wheels will roll over the pallet when the fork arm enters the pallet, which will cause damage to the pallet. Using a wide-leg forklift or a counterbalanced forklift is expensive, and the vehicle body is usually large and has poor adaptability to small sites and narrow alleys. Utility Model Content

[0005] In order to make up for the above deficiencies, the present application provides a wheel lifting mechanism structure applied to a forklift, aiming to improve the problems mentioned in the above background technology.

[0006] An embodiment of the present application provides a wheel lifting mechanism used on a forklift, and the wheel lifting mechanism used on the forklift includes a driving mechanism, a slider, a crank, a connecting rod, a pulley block, and a fork; the driving mechanism is fixedly connected to the slider and can push the slider to move; the crank is fixedly connected to the fork and is in contact with the slider; the pulley block is fixedly connected to the fork; one end of the connecting rod is connected to the crank, and the other end is connected to the pulley block.

[0007] Furthermore, the driving mechanism pushes the slider to move, and the crank rotates accordingly, thereby pulling the rod, and further driving the pulley block to rotate.

[0008] Furthermore, the fork is provided with a hole, the position of the hole corresponds to the pulley block, so as to facilitate lifting of the pulley block.

[0009] Optionally, the crank includes a crank fixing hole, a crank-connecting rod fixing hole, and a roller; the crank fixing hole is rotatably connected to the fork, and the crank-connecting rod fixing hole is connected to the connecting rod; the roller contacts the slider to facilitate the rotation of the crank.

[0010] Optionally, the pulley group includes a fixed seat, a fixed shaft, a rotating block, and a pulley; the fixed seat is fixedly connected to the fork, the rotating block is rotatably connected to the fixed seat via the fixed shaft, one end of the rotating block is connected to the connecting rod, and the other end is connected to the pulley; driven by the connecting rod, the rotating block rotates with the fixed shaft as the center, driving the pulley to rotate.

[0011] Furthermore, the fixed seat is provided with a rotating block connecting hole and an inclined surface; the rotating block is provided with a pulley group connecting rod fixing hole, a rotating block fixing hole and a pulley connecting hole; the fixed shaft rotatably connects the rotating block to the fixed seat through the rotating block connecting hole and the rotating block fixing hole, and the inclined surface facilitates the installation and connection of the rotating block; the pulley group connecting rod fixing hole is located at one end of the rotating block, and the pulley connecting hole is located at the other end of the rotating block, the pulley group connecting rod fixing hole is used to connect the connecting rod, and the pulley connecting hole is used to connect the pulley.

[0012] Furthermore, the pulley includes a wheel, a wheel cover, a pulley connecting shaft, and a wheel fixing shaft; the pulley connecting shaft is located on the wheel cover and connected to the pulley connecting hole, so that the pulley is connected to the rotating block; the wheel cover is located on both sides of the wheel, and the wheel fixing shaft fixes the wheel through the wheel cover.

[0013] Optionally, the driving mechanism includes: a telescopic cylinder, a slide rail, a moving block, and a driving fixed seat; the slider includes a slide groove; the telescopic cylinder and the slide rail are fixed on the fixed seat, and the telescopic cylinder is fixedly connected to the moving block to push the moving block to move on the slide rail; the moving block is connected to the slider, and the movement of the moving block drives the movement of the slider, and under the action of the slide groove, the crank rotates accordingly.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows: Different from the prior art, the present application provides a wheel-lifting mechanism applied to a forklift, including a driving mechanism, a slider, a crank, a connecting rod, a pulley block, and a fork; the wheel-lifting mechanism provided by the present patent can add a forklift load-bearing wheel lifting function to an ordinary forklift, and the height of the fork arm can remain unchanged after the load-bearing wheel is lifted. When the load-bearing wheel is in the lifted state, the fork arm can enter and exit the field-shaped pallet without contacting the pallet, thereby realizing non-destructive forking and carrying of the field pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a structural schematic diagram of a wheel lifting mechanism provided in an embodiment of the present application;

[0017] Figure 2 is an exploded schematic diagram of a wheel lifting mechanism provided in an embodiment of the present application;

[0018] Figure 3 is a schematic diagram of the structure of a crank provided in an embodiment of the present application;

[0019] Figure 4 It is a structural schematic diagram of a pulley block provided in an embodiment of the present application;

[0020] Figure 5 It is a schematic diagram of the exploded structure of the pulley block provided in the embodiment of the present application;

[0021] Figure 6 is a schematic diagram of the internal structure of the wheel lifting mechanism provided in an embodiment of the present application;

[0022] Figure 7 yes Figure 6 A in the enlarged view;

[0023] Figure 8 It is a schematic diagram of the working process of the wheel lifting mechanism provided in an embodiment of the present application;

[0024] Fig. 9 is a schematic diagram of a wheel lifting mechanism provided in an embodiment of the present application;

[0025] Fig.10 This is a schematic diagram of the wheel lifting mechanism provided in an embodiment of the present application when applied to a pallet truck. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0027] See also Figure 1-Figure 2 The wheel lifting mechanism 10 includes a driving mechanism 11, a slider 12, a crank 13, a connecting rod 14, a pulley block 15, and a fork 16. The driving mechanism 11 is fixedly connected to the slider 12 and can push the slider 12 to move. The crank 13 is fixedly connected to the fork 16 and contacts the slider 12. The pulley block 15 is fixedly connected to the fork 16. One end of the connecting rod 14 is connected to the crank 13, and the other end is connected to the pulley block 15. The driving mechanism 11 pushes the slider 12 to move, and the crank 13 rotates accordingly, thereby pulling the rod 14, and then driving the pulley block 15 to rotate. A hole 161 is provided on the fork 16, corresponding to the pulley block 15, to facilitate the lifting of the pulley block 15.

[0028] See also Figure 3The crank 13 includes a crank fixing hole 131, a crank connecting rod fixing hole 132, and a roller 133. The crank 13 is rotatably connected to the fork 16 by passing a pin through the fork 16 and the crank fixing hole 131. The crank connecting rod fixing hole 132 and the connecting rod 14 are passed through a pin to connect one end of the connecting rod 14 to the crank 13. The roller 133 contacts the slider 12 to facilitate the rotation of the crank 13.

[0029] See also Figure 4-Figure 5 The pulley block 15 includes a fixed seat 151, a fixed shaft 152, a rotating block 153, and a pulley 154. The fixed seat 151 is fixedly connected to the fork 16, and the rotating block 153 is rotatably connected to the fixed seat 151 through the fixed shaft 152. One end of the rotating block 153 is connected to the connecting rod 14, and the other end is connected to the pulley 154. Therefore, driven by the connecting rod 14, the rotating block 153 rotates with the fixed shaft 152 as the center, driving the rotation of the pulley 154.

[0030] The fixed seat 151 is provided with a rotating block connecting hole 1511 and an inclined surface 1512. The rotating block 153 is provided with a pulley block connecting rod fixing hole 1531, a rotating block fixing hole 1532 and a pulley connecting hole 1533. The pulley 154 includes a wheel 1541, a wheel cover 1542, a pulley connecting shaft 1543 and a wheel fixing shaft 1544. The fixed shaft 152 rotatably connects the rotating block 153 to the fixed seat 151 through the rotating block connecting hole 1511 and the rotating block fixing hole 1532, and the inclined surface 1512 facilitates the connection of the rotating block 153. The pulley block connecting rod fixing hole 1531 is located at one end of the rotating block 153, and the pulley connecting hole 1533 is located at the other end of the rotating block 153. The pulley block connecting rod fixing hole 1531 is used to connect the connecting rod 14, and the pulley connecting hole 1533 is used to connect the pulley 154. The pulley connecting shaft 1543 is located on the wheel cover 1542, connected to the pulley connecting hole 1533, and connects the pulley 154 to the rotating block 153. The wheel cover 1542 is located on both sides of the wheel 1541, and the wheel fixing shaft 1544 fixes the wheel 1541 through the wheel cover 1542.

[0031] See also Figure 6-Figure 7 The driving mechanism 11 includes: a telescopic cylinder 111, a slide rail 112, a moving block 113, and a driving fixed seat 114. The slider 12 includes a slide groove 121. The telescopic cylinder 111 and the slide rail 112 are fixed on the fixed seat 114. The telescopic cylinder 111 is fixedly connected to the moving block 113, and pushes the moving block 113 to move on the slide rail 112. The moving block 113 is connected to the slider 12, and the movement of the moving block 113 drives the movement of the slider 12, so that the crank 13 moves relatively on the slide groove 121, and then drives the movement of the connecting rod 14.

[0032] See also Figure 8-Figure 10When the forklift 20 needs to enter the pallet, it needs to lift the pulley, and the telescopic oil cylinder 111 pushes the slider 12 away from itself. Under the action of the slide groove 121, the crank 13 rotates with the crank fixing hole 131 as the center, thereby pulling the connecting rod 14 to move away from the pulley block 15, and then drives the rotating block 153 to rotate with the fixed shaft 152 as the center, driving the rotation of the pulley 154, and the pulley 154 is lifted. If the pulley needs to be lowered, the reverse steps can be performed, which will not be repeated.

[0033] The wheel lifting mechanism provided by this patent can add the function of lifting the forklift's load wheels to ordinary forklifts, and the fork arm height can remain unchanged after the load wheels are lifted. When the load wheels are in the lifted state, the fork arm can enter and exit the field pallet without contacting the pallet, thereby realizing non-destructive forking and carrying of the field pallet.

[0034] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, improvement or equivalent replacement made within the spirit and principle of the present application shall be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A wheel lifting mechanism used on a forklift. Features: The wheel lifting mechanism used in the forklift includes a driving mechanism, a slider, a crank, a connecting rod, a pulley block, and a fork; the driving mechanism is fixedly connected to the slider and can push the slider to move; the crank is fixedly connected to the fork and is in contact with the slider; the pulley block is fixedly connected to the fork; one end of the connecting rod is connected to the crank, and the other end is connected to the pulley block.

2. The wheel lifting mechanism used in a forklift according to claim 1, Features: The driving mechanism pushes the slider to move, and the crank rotates accordingly, thereby pulling the rod, and further driving the pulley block to rotate.

3. The wheel lifting mechanism used in a forklift according to claim 1, Features: The fork is provided with a hole, the position of the hole corresponds to the pulley block, so as to facilitate lifting of the pulley block.

4. The wheel lifting mechanism used in a forklift according to claim 2, Features: The crank comprises a crank fixing hole, a crank connecting rod fixing hole, and a roller; the crank fixing hole is rotatably connected to the fork, and the crank connecting rod fixing hole is connected to the connecting rod; the roller contacts the slider to facilitate the rotation of the crank.

5. The wheel lifting mechanism used in a forklift according to claim 2, Features: The pulley assembly includes a fixed seat, a fixed shaft, a rotating block, and a pulley; the fixed seat is fixedly connected to the fork, the rotating block is rotatably connected to the fixed seat via the fixed shaft, one end of the rotating block is connected to the connecting rod, and the other end is connected to the pulley; driven by the connecting rod, the rotating block rotates with the fixed shaft as the center, driving the pulley to rotate.

6. The wheel lifting mechanism used in a forklift according to claim 5, Features: The fixed seat is provided with a rotating block connecting hole and an inclined surface; the rotating block is provided with a pulley group connecting rod fixing hole, a rotating block fixing hole and a pulley connecting hole; the fixed shaft rotatably connects the rotating block to the fixed seat through the rotating block connecting hole and the rotating block fixing hole, and the inclined surface facilitates the installation and connection of the rotating block; the pulley group connecting rod fixing hole is located at one end of the rotating block, and the pulley connecting hole is located at the other end of the rotating block, the pulley group connecting rod fixing hole is used to connect the connecting rod, and the pulley connecting hole is used to connect the pulley.

7. The wheel lifting mechanism used in a forklift according to claim 6, Features: The pulley comprises a wheel, a wheel cover, a pulley connecting shaft, and a wheel fixing shaft; the pulley connecting shaft is located on the wheel cover and connected to the pulley connecting hole, so that the pulley is connected to the rotating block; the wheel cover is located on both sides of the wheel, and the wheel fixing shaft fixes the wheel through the wheel cover.

8. The wheel lifting mechanism used in a forklift according to claim 2, Features: The driving mechanism includes: a telescopic cylinder, a slide rail, a moving block, and a driving fixed seat; the slider includes a slide groove; the telescopic cylinder and the slide rail are fixed on the fixed seat, and the telescopic cylinder is fixedly connected to the moving block to push the moving block to move on the slide rail; the moving block is connected to the slider, and the movement of the moving block drives the movement of the slider, and under the action of the slide groove, the crank rotates accordingly.

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