Forklift front fork positioning structure

Abstract

The utility model provides a forklift front fork positioning structure which comprises a forklift body, a lifting assembly is arranged on the front face of the forklift body, and a positioning assembly is arranged on the front face of the forklift body and located below the positioning assembly. The lifting assembly comprises a rotatable portal frame arranged at the bottom of the front face of the vehicle body, and a supporting frame capable of sliding up and down in the height direction of the portal frame is arranged on the inner side of the portal frame. According to the forklift front fork positioning structure, the first gear is driven to rotate through rotation of the output end of the driving motor, then the second gear meshed with the first gear is driven to rotate, the rotating lead screw is made to rotate, the two forks are driven to move oppositely or away from each other through arrangement of the threads on the circumferential side face of the rotating lead screw, and therefore the forklift front fork positioning structure is formed. According to the pallet fork, the distance between the pallet forks is further positioned and adjusted, so that goods of different sizes can be stably erected, the structure is simple and practical, the distance between the pallet forks can be conveniently positioned, and stable operation of the goods can be improved.

Description

Technical Field

[0001] The utility model relates to the field of forklifts, in particular to a front fork positioning structure of a forklift. Background Art

[0002] Forklifts are industrial handling vehicles, which refer to various wheeled handling vehicles for loading, unloading, stacking and short-distance transportation of palletized goods. They are widely used in ports, stations, airports, freight yards, factory workshops, warehouses, distribution centers and distribution centers, etc. They can enter cabins, carriages and containers to load, unload and transport palletized goods. They are indispensable equipment for pallet transportation and container transportation. The technical parameters of forklifts are used to indicate the structural characteristics and working performance of forklifts. The main technical parameters are: rated lifting capacity, load center distance, maximum lifting height, mast inclination, maximum travel speed, minimum turning radius, minimum ground clearance, wheelbase, wheelbase, etc.

[0003] The reach truck has the common features of a counterbalanced forklift and an electric stacker. When the mast rises to the top, the center of gravity of the load falls on the outside of the fulcrum, which is equivalent to an electric stacker. The combination of these two performances gives this forklift the advantages of operational flexibility and high load, while the volume and weight do not increase much. The vehicle's weight is about 500kg, which can save space and reduce the turning radius, making it suitable for indoor warehouse operations with narrow aisles.

[0004] A forklift is an industrial handling vehicle for loading, unloading and transporting goods. Due to its small size and flexibility, it is widely used in the production field and has a considerable market share. However, it is difficult for a forklift to complete operations for heavy objects that cannot be inserted into the fork space or areas that are difficult for forklifts to enter. Application number: CN202223434203.0 discloses a positioning structure for a reach-forklift. Through the setting of a lifting rod and a moving plate, it can effectively solve the problem that the existing reach-forklift does not have a convenient height positioning structure, so that objects cannot be accurately moved to a specified height. However, when the device is in use, the distance between the two fork plates cannot be adjusted. For example, when encountering smaller goods, it cannot provide effective support effects.

[0005] Therefore, it is necessary to provide a forklift front fork positioning structure to solve the above technical problems. Utility Model Content

[0006] The utility model provides a forklift front fork positioning structure, which solves the problem in the related art that it is inconvenient to adjust and position the distance between two forks when some existing forklifts are in use.

[0007] In order to solve the above technical problems, the utility model provides a forklift front fork positioning structure, comprising: a vehicle body, a lifting assembly is arranged on the front of the vehicle body, and a positioning assembly is arranged on the front of the vehicle body and below the positioning assembly;

[0008] The lifting assembly comprises a rotatable gantry frame arranged at the bottom of the front of the vehicle body, a support frame is arranged on the inner side of the gantry frame and can slide up and down along its height direction, and the back side of the support frame is slidably connected to the front side of the gantry frame;

[0009] The positioning assembly includes a rotating screw rod which is rotatably arranged on the inner side of the support frame, and two forks are relatively movable on the left and right sides of the rotating screw rod. A limiting rod is arranged on the top of the inner side of the support frame, and the back sides of the two forks are slidably connected to the peripheral side surfaces of the limiting rod.

[0010] Preferably, the lifting assembly also includes a fixed plate arranged at the inner bottom of the gantry, and two hydraulic rods are arranged on the left and right sides of the top of the fixed plate, and the output ends of the tops of the two hydraulic rods are fixedly connected to the back side of the support frame.

[0011] Preferably, a driving motor for driving the rotating screw to rotate is arranged at the bottom of the back side of the support frame, a first gear is fixedly connected to the peripheral side surface of the left output end of the driving motor, a second gear is arranged on the peripheral side surface of the rotating screw, and the first gear is meshed with the second gear.

[0012] Preferably, two first electric telescopic rods are provided in mirror images on the left and right sides of the front side of the vehicle body, and the output ends of the two first electric telescopic rods on the front side are rotatably connected to the back side of the gantry.

[0013] Preferably, a slide groove is provided on the top of the two forks, and an extension frame is provided inside the two slide grooves so as to slide forward and backward. A second electric telescopic rod is provided at the bottom of the two forks, and the output ends on the front sides of the two second electric telescopic rods are fixedly connected to the back side of the bottom of the extension frame.

[0014] Preferably, a baffle is rotatably connected to the inner side of the two extension frames, and springs are provided on the back side of the two baffles, and the bottom ends of the two springs are fixedly connected to the bottom of the inner side of the two extension frames.

[0015] Compared with the related art, the forklift front fork positioning structure provided by the utility model has the following beneficial effects:

[0016] The utility model provides a forklift front fork positioning structure, which drives the rotation of the first gear by the rotation of the output end of the driving motor, and then drives the rotation of the second gear meshing with the first gear, so that the rotating screw rod rotates, and the arrangement of the threaded surface around the rotating screw rod drives the two forks to move relative to or apart from each other, and then the spacing between the forks is positioned and adjusted to adapt to the stable erection of goods of different sizes. The structure is simple and practical, and it is convenient to position the spacing between the forks, and can improve the stable operation of the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of a forklift front fork positioning structure provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the rear view of the vehicle body shown;

[0019] Figure 3 for Figure 1 The structural diagram of the rear view of the gantry is shown;

[0020] Figure 4 for Figure 1 The structural diagram of the right view of the fork is shown.

[0021] Numbers in the figure: 1. Vehicle body; 2. Lifting assembly; 21. Gantry; 22. Support frame; 23. Fixed plate; 24. Hydraulic rod; 3. Positioning assembly; 31. Rotating screw; 32. Fork; 33. Limit rod; 34. Driving motor; 35. First gear; 36. Second gear; 4. First electric telescopic rod; 5. Slide; 6. Extension frame; 7. Second electric telescopic rod; 8. Baffle; 9. Spring. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A structural schematic diagram of a preferred embodiment of a forklift front fork positioning structure provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the rear view of the vehicle body shown; Figure 3 for Figure 1 The structural diagram of the rear view of the gantry is shown; Figure 4 for Figure 1The structural schematic diagram of the right view of the fork shown in the figure is a forklift front fork positioning structure, comprising: a vehicle body 1, a lifting assembly 2 is arranged on the front of the vehicle body 1, and a positioning assembly 3 is arranged on the front of the vehicle body 1 and below the positioning assembly 2;

[0024] The lifting assembly 2 includes a gantry 21 which is rotatably arranged at the bottom of the front of the vehicle body 1, and a support frame 22 is arranged on the inner side of the gantry 21 so as to slide up and down along its height direction, and the back side of the support frame 22 is slidably connected to the front side of the gantry 21;

[0025] The output ends of the two hydraulic rods 24 are extended to drive the support frame 22 to slide up and down on the inner side of the gantry 21. The back side of the support frame 22 slides with the front side of the gantry 21, so that the support frame 22 can be more stable when it is lifted or lowered, thereby preventing the cargo from tipping over.

[0026] The positioning assembly 3 includes a rotating screw 31 which is rotatably arranged on the inner side of the support frame 22, and two forks 32 are relatively movable on the left and right sides of the rotating screw 31. A limiting rod 33 is arranged on the top of the inner side of the support frame 22, and the back sides of the two forks 32 are slidably connected to the surrounding side surfaces of the limiting rod 33.

[0027] By driving the output end of the motor 34 to rotate, the first gear 35 is driven to rotate, and then the second gear 36 meshing therewith is driven to rotate, so that the screw rod 31 is rotated, and the side threads around the screw rod 31 are set to drive the two forks 32 to move relative to or away from each other, and then the spacing between the forks 32 is positioned and adjusted to accommodate the smooth erection of goods of different sizes.

[0028] The lifting assembly 2 also includes a fixed plate 23 arranged at the inner bottom of the gantry 21 , and two hydraulic rods 24 are arranged on the left and right sides of the top of the fixed plate 23 , and the output ends of the tops of the two hydraulic rods 24 are fixedly connected to the back side of the support frame 22 .

[0029] A driving motor 34 for driving the rotating screw 31 to rotate is arranged at the bottom of the back side of the support frame 22, and a first gear 35 is fixedly connected to the peripheral side of the left output end of the driving motor 34, and a second gear 36 is arranged on the peripheral side of the rotating screw 31, and the first gear 35 is meshed with the second gear 36.

[0030] Two first electric telescopic rods 4 are provided on the front side of the vehicle body 1 in mirror images on the left and right sides. The output ends of the front sides of the two first electric telescopic rods 4 are rotatably connected to the back side of the gantry 21 .

[0031] By setting the gantry 21 rotatably connected to the vehicle body 1, when the output ends of the two first electric telescopic rods 4 are extended, the entire gantry 21 can be driven to tilt forward, thereby facilitating the erection of goods at different angles.

[0032] A slide groove 5 is provided on the top of the two forks 32, and an extension frame 6 is provided inside the two slide grooves 5 so as to slide forward and backward. A second electric telescopic rod 7 is provided at the bottom of the two forks 32, and the output ends of the front sides of the two second electric telescopic rods 7 are fixedly connected to the back side of the bottom of the extension frame 6.

[0033] The extension of the output end of the second electric telescopic rod 7 drives the extension of the extension frame 6, so that the fork 32 can support the goods longer.

[0034] The inner sides of the two extension frames 6 are rotatably connected with baffles 8 , and the back sides of the two baffles 8 are provided with springs 9 , and the bottom ends of the two springs 9 are fixedly connected to the bottoms of the inner sides of the two extension frames 6 .

[0035] Through the setting of the spring 9, after the fork 32 lifts the goods, the extension frame 6 moves forward. When the goods are not above the baffle 8, the spring 9 lifts and tilts the baffle 8, and the front of the goods can be limited during the movement to prevent the goods from slipping out of the fork 32.

[0036] The working principle of a forklift front fork positioning structure provided by the utility model is as follows:

[0037] Step 1: When in use, two forks 32 are passed through the bottom of the cargo, and the extension of the extension frame 6 is driven by the extension of the output end of the second electric telescopic rod 7, so that the baffle 8 is lifted to limit the front of the cargo to prevent the cargo from sliding;

[0038] Step 2: By extending the output ends of the two hydraulic rods 24, the support frame 22 is driven to slide up and down on the inner side of the gantry 21. By setting the back side of the support frame 22 to slide with the front side of the gantry 21, it can be more stable when it is lifted and lowered, and the goods can be prevented from tipping over during the lifting process;

[0039] Step 3: When the distance between the two forks 32 needs to be adjusted, the output end of the driving motor 34 is rotated to drive the first gear 35 to rotate, and then the second gear 36 meshing therewith is driven to rotate, so that the rotating screw rod 31 is rotated, and the side threads of the rotating screw rod 31 are set to drive the two forks 32 to move relative to or away from each other, and then the distance between the forks 32 is positioned and adjusted to accommodate the smooth erection of goods of different sizes.

[0040] Compared with the related art, the forklift front fork positioning structure provided by the utility model has the following beneficial effects:

[0041] By driving the output end of the motor 34 to rotate, the first gear 35 is driven to rotate, and then the second gear 36 meshing therewith is driven to rotate, so that the screw rod 31 is rotated. By setting the side threads around the screw rod 31, the two forks 32 are driven to move relative to or away from each other, and then the spacing between the forks 32 is positioned and adjusted to accommodate the stable erection of goods of different sizes. The structure is simple and practical, which is convenient for positioning the spacing between the forks 32 and can improve the stable operation of the goods.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A forklift front fork positioning structure, It is characterized in that include: A vehicle body (1), wherein a lifting assembly (2) is arranged on the front of the vehicle body (1), and a positioning assembly (3) is arranged on the front of the vehicle body (1) and below the lifting assembly (2); The lifting assembly (2) comprises a rotatable gantry (21) arranged at the bottom of the front side of the vehicle body (1); a support frame (22) is arranged on the inner side of the gantry (21) so as to slide up and down along its height direction; and the back side of the support frame (22) is slidably connected to the front side of the gantry (21); The positioning assembly (3) comprises a rotating screw (31) which is rotatably arranged on the inner side of the support frame (22) in a transverse direction, two forks (32) are relatively movable on the left and right sides of the rotating screw (31), a limiting rod (33) is arranged on the top of the inner side of the support frame (22), and the back sides of the two forks (32) are slidably connected to the side sides of the limiting rod (33).

2. A forklift front fork positioning structure according to claim 1, It is characterized in that The lifting assembly (2) further comprises a fixing plate (23) arranged at the inner bottom of the gantry (21), two hydraulic rods (24) being arranged on the left and right sides of the top of the fixing plate (23), and the output ends of the tops of the two hydraulic rods (24) are fixedly connected to the back side of the support frame (22).

3. A forklift front fork positioning structure according to claim 1, It is characterized in that A driving motor (34) for driving the rotating screw (31) to rotate is arranged at the bottom of the back side of the support frame (22); a first gear (35) is fixedly connected to the peripheral side surface of the left output end of the driving motor (34); a second gear (36) is arranged on the peripheral side surface of the rotating screw (31); and the first gear (35) is meshed with the second gear (36).

4. A forklift front fork positioning structure according to claim 1, It is characterized in that Two first electric telescopic rods (4) are arranged in mirror images on the front and left sides of the vehicle body (1), and the output ends on the front sides of the two first electric telescopic rods (4) are rotatably connected to the back side of the gantry (21).

5. A forklift front fork positioning structure according to claim 1, It is characterized in that A slide groove (5) is provided on the top of each of the two forks (32), and an extension frame (6) is provided inside the two slide grooves (5) so as to be able to slide forward and backward. A second electric telescopic rod (7) is provided at the bottom of each of the two forks (32), and the output ends of the front sides of the two second electric telescopic rods (7) are fixedly connected to the back side of the bottom of the extension frame (6).

6. A forklift front fork positioning structure according to claim 5, It is characterized in that A baffle (8) is rotatably connected to the inner side of the two extension frames (6), and springs (9) are arranged on the back side of the two baffles (8). The bottom ends of the two springs (9) are fixedly connected to the bottom of the inner side of the two extension frames (6).

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