Built-in distance adjusting fork adaptive to trays of different specifications
By incorporating an adjustable fork structure, the fork spacing is adjusted and friction is enhanced, solving the problems of fixed fork spacing and insufficient friction in forklifts, thus enabling adaptation to pallets of different sizes and stable transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TEKINS FORKLIFT ATTACHMENT CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-04-17
AI Technical Summary
The existing forklifts have a fixed fork spacing that cannot be adjusted, making them unsuitable for different pallet sizes. Furthermore, they lack sufficient friction, making them prone to slipping.
It adopts a built-in adjustable fork, and through the combination of adjustment groove, slider, adjustment component and friction component, the fork body spacing is adjusted by using adjustment motor and micro motor to drive double screw and rotating shaft, and the friction is enhanced by friction wheel and friction teeth.
It achieves adjustable fork spacing, adapts to different pallet sizes, enhances friction, prevents slippage, and improves transportation stability.
Smart Images

Figure CN224132675U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forklift technology, and in particular to a built-in adjustable fork that is adapted to pallets of different sizes. Background Technology
[0002] Currently, in the field of forklift attachments in the construction machinery industry, various handling industries require the use of forklift forks to transport goods. Chinese patent document with application number: 202011572318.9 discloses an extendable forklift fork.
[0003] However, the fork with the above-mentioned technical solution has a fixed distance between the two forks, which cannot be adjusted during installation. In use, the fixed distance makes it difficult to adapt to pallets of different sizes. Moreover, the fork is a simple structure with insufficient friction, which can easily cause slippage during use. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as fixed fork spacing, inability to adjust, and insufficient friction, by proposing a built-in adjustable fork that is compatible with pallets of different specifications.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An adjustable fork with built-in spacing to accommodate pallets of different sizes, including a mounting bracket;
[0007] An adjustment groove is located inside the mounting frame.
[0008] There are four sliders, all of which are slidably connected to the inside of the adjustment groove;
[0009] The built-in adjustable fork has two built-in adjustable forks, which are bolted between the surfaces of the upper and lower sliders.
[0010] The pitch adjustment assembly includes an adjustment motor, a double-stitched screw, and a slide. The adjustment motor is keyed to the double-stitched screw. There are two slides, and the screw holes of the two slides are respectively threaded to the two ends of the surface of the double-stitched screw. The top and bottom of one slide are respectively bolted to the surfaces of two sliders.
[0011] The friction assembly consists of two parts, including a rotating shaft, a friction wheel, and friction teeth. The surface of the rotating shaft is keyed to the axis of the friction wheel, and the friction teeth are located at the bottom of the friction wheel.
[0012] The adjustment mechanism consists of two parts connected to a rotating shaft. Through the transmission of the structure, the distance between the two built-in adjustable forks can be adjusted, allowing the built-in adjustable forks to adapt to pallets of different sizes. Moreover, through the rotation of the friction wheel and friction teeth, the friction of the built-in adjustable forks can be increased, preventing slippage caused by insufficient friction during transportation.
[0013] In a preferred embodiment of this invention, the adjusting mechanism includes a micro motor, a rotating rod, a main bevel gear, and a secondary bevel gear. The output end of the micro motor is keyed to the top of the rotating rod, and the bottom end of the rotating rod is keyed to the shaft center of the main bevel gear. The teeth of the main bevel gear mesh with the teeth of the secondary bevel gear, and the shaft center of the secondary bevel gear is keyed to the right end of the rotating shaft. The micro motor can be powered by a forklift and controlled by a controller. The micro motor can drive the rotating rod to rotate, the rotating rod can drive the main bevel gear to rotate, the main bevel gear can drive the secondary bevel gear to rotate, and the secondary bevel gear can drive the rotating shaft to rotate.
[0014] In a preferred embodiment of this utility model, the surface of the micro motor is connected to the recessed bolt at the top of the built-in adjustable fork, the surface of the rotating rod is rotatably sleeved with the inside of the built-in adjustable fork, the micro motor is fixed by the built-in adjustable fork, which facilitates the micro motor to drive the rotating rod to rotate, the rotating rod is rotatably set with the built-in adjustable fork through a bearing, and a recess is provided at the bottom of the built-in adjustable fork to facilitate the rotation of the main bevel gear.
[0015] In a preferred embodiment of this utility model, the adjustment groove is bolted with a sliding rod. There are two sliding rods, and the surface of one sliding rod is slidably connected to the sliding holes of the left and right sliders. The sliders are slidably set in the adjustment groove through the sliding rod to guide the sliders.
[0016] In a preferred embodiment of this utility model, the surface of the adjusting motor is bolted to the side of the mounting frame, both ends of the double-threaded screw are rotatably sleeved with the inside of the adjusting groove, the surface of the slide is slidably connected to the inside of the adjusting groove, the adjusting motor is fixed by the mounting frame, which facilitates the adjusting motor to drive the double-threaded screw to rotate, the double-threaded screw is rotatably set with the adjusting groove through bearings, and the slide is slidably set with the adjusting groove through a slide rail.
[0017] As a preferred embodiment of this utility model, both ends of the rotating shaft are rotatably connected to the grooves on the fork face of the built-in adjustable fork. The friction wheel and the rotating shaft have an eccentric structure. The rotating shaft is rotatably set with the built-in adjustable fork through the bearing to ensure the smoothness of the rotating shaft rotation.
[0018] Beneficial effects:
[0019] 1. The adjustment motor can drive the double-threaded screw to rotate, the double-threaded screw can drive the carriage to move, the carriage can drive the two sets of sliders to move, and the sliders can drive the built-in adjustable forks to move, thus adjusting the distance between the two built-in adjustable forks.
[0020] 2. The adjustment mechanism can drive the rotating shaft to rotate, the rotating shaft can drive the friction wheel to rotate, the friction wheel can drive the friction teeth to rotate, and the friction teeth can enhance the friction of the built-in adjustable forks;
[0021] In this invention, the distance between the two built-in adjustable forks can be adjusted through the transmission of the structure, allowing the built-in adjustable forks to adapt to pallets of different sizes. Moreover, through the rotation of the friction wheel and friction teeth, the friction of the built-in adjustable forks can be increased by the friction teeth, thus preventing slippage caused by insufficient friction during transportation. Attached Figure Description
[0022] Figure 1 This is a perspective view of the entire utility model;
[0023] Figure 2 This is a perspective view of the adjustment mechanism of this utility model;
[0024] Figure 3 This is a three-dimensional cross-sectional view of the mounting frame of this utility model;
[0025] Figure 4 This is a perspective view of the built-in adjustable fork of this utility model.
[0026] In the diagram: 1. Mounting frame; 2. Adjustment groove; 3. Slider; 4. Built-in adjustable fork; 5. Adjustment motor; 6. Double-threaded screw; 7. Carriage; 8. Micro motor; 9. Rotating rod; 10. Main bevel gear; 11. Secondary bevel gear; 12. Rotating shaft; 13. Friction wheel; 14. Friction teeth; 15. Sliding rod. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] Example
[0029] Reference Figures 1-4 A built-in adjustable fork that adapts to pallets of different sizes, including a mounting frame 1;
[0030] Adjustment groove 2 is located inside the mounting frame 1;
[0031] Slider 3, there are four sliders 3, and all four sliders 3 are slidably connected to the inside of the adjustment groove 2;
[0032] Built-in adjustable fork 4, two built-in adjustable forks 4 are provided, and the built-in adjustable fork 4 is bolted between the surfaces of the upper and lower sliders 3;
[0033] The pitch adjustment assembly includes an adjustment motor 5, a double-stitched screw 6, and a slide 7. The adjustment motor 5 is keyed to the double-stitched screw 6. There are two slides 7. The screw holes of the two slides 7 are respectively threaded to the two ends of the surface of the double-stitched screw 6. The top and bottom of one slide 7 are respectively bolted to the surfaces of two sliders 3.
[0034] The friction assembly has two components, including a rotating shaft 12, a friction wheel 13, and friction teeth 14. The surface of the rotating shaft 12 is keyed to the axis of the friction wheel 13, and the friction teeth 14 are located at the bottom of the friction wheel 13.
[0035] There are two adjustment mechanisms, which are connected to the rotating shaft 12.
[0036] With the above structure, the distance between the two built-in adjustable forks 4 can be adjusted through the transmission of the structure, so that the built-in adjustable forks 4 can be adapted to pallets of different sizes. Moreover, through the rotation of the friction wheel 13 and the friction tooth 14, the friction of the built-in adjustable forks 4 can be increased by the friction tooth 14, so as to avoid slippage of the built-in adjustable forks 4 due to insufficient friction during transportation.
[0037] Please see Figure 2 The adjustment mechanism includes a micro motor 8, a rotating rod 9, a main bevel gear 10, and a secondary bevel gear 11. The output end of the micro motor 8 is keyed to the top of the rotating rod 9, and the bottom end of the rotating rod 9 is keyed to the shaft of the main bevel gear 10. The teeth of the main bevel gear 10 mesh with the teeth of the secondary bevel gear 11, and the shaft of the secondary bevel gear 11 is keyed to the right end of the rotating shaft 12. The micro motor 8 can be powered by a forklift and controlled by a controller. The micro motor 8 can drive the rotating rod 9 to rotate, the rotating rod 9 can drive the main bevel gear 10 to rotate, the main bevel gear 10 can drive the secondary bevel gear 11 to rotate, and the secondary bevel gear 11 can drive the rotating shaft 12 to rotate.
[0038] Please see Figure 4 The surface of the micro motor 8 is connected to the recessed bolt on the top of the built-in adjustable fork 4, and the surface of the rotating rod 9 is rotatedly connected to the inside of the built-in adjustable fork 4. The micro motor 8 is fixed by the built-in adjustable fork 4, which facilitates the micro motor 8 to drive the rotating rod 9 to rotate. The rotating rod 9 is rotatably set with the built-in adjustable fork 4 through the bearing. The bottom of the built-in adjustable fork 4 is provided with a recess to facilitate the rotation of the main bevel gear 10.
[0039] Please see Figure 3The adjustment groove 2 is bolted with a slide rod 15. There are two slide rods 15. The surface of one slide rod 15 is slidably connected to the sliding holes of the left and right sliders 3. The sliders 3 are slidably set in the adjustment groove 2 through the slide rod 15 to guide the sliders 3.
[0040] Please see Figure 3 The surface of the adjusting motor 5 is bolted to the side of the mounting frame 1. Both ends of the double-stretched screw 6 are rotated and sleeved inside the adjusting groove 2. The surface of the slide 7 is slidably connected to the inside of the adjusting groove 2. The adjusting motor 5 is fixed by the mounting frame 1, which facilitates the adjusting motor 5 to drive the double-stretched screw 6 to rotate. The double-stretched screw 6 is rotatably set with the adjusting groove 2 through the bearing. The slide 7 is slidably set with the adjusting groove 2 through the slide rail.
[0041] Please see Figure 2 Both ends of the rotating shaft 12 are rotatably connected to the grooves on the fork face of the built-in adjustable fork 4. The friction wheel 13 and the rotating shaft 12 are eccentrically connected. The rotating shaft 12 is rotatably connected to the built-in adjustable fork 4 through the bearing to ensure the smoothness of the rotation of the rotating shaft 12.
[0042] It should be noted that the specific models of regulating motor 5 and micro motor 8 used are to be selected by those skilled in the art, and the above-mentioned regulating motor 5 and micro motor 8 are all existing technologies, which will not be elaborated on in this solution.
[0043] The working principle of this utility model is as follows: The mounting frame 1 is installed on a forklift. When it is necessary to adjust the spacing of the built-in adjustable forks 4, the adjusting motor 5 can be powered by the forklift and controlled by a controller. The adjusting motor 5 can drive the double-threaded screw 6 to rotate. The threads on both sides of the surface of the double-threaded screw 6 have opposite directions. The double-threaded screw 6 can drive the two slides 7 to move closer to each other. One slide 7 can drive the two sliders 3 to move. The sliders 3 can drive the built-in adjustable forks 4 to move, adjusting the spacing of the two built-in adjustable forks 4. After adjustment, the built-in adjustable forks 4 are used to pick up goods. The micro motor 8 can be powered by the forklift and controlled by a controller. The micro motor 8 can drive the rotating rod 9 to rotate. The rotating rod 9 can drive the main bevel gear 10 to rotate. The main bevel gear 10 can drive the secondary bevel gear 11 to rotate. The secondary bevel gear 11 can drive the rotating shaft 12 to rotate. The rotating shaft 12 can drive the friction wheel 13 to rotate. The friction wheel 13 can drive the friction teeth 14 to rotate upward until the friction teeth 14 are set upward. The friction teeth 14 can enhance the friction of the built-in adjustable forks 4.
[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A built-in adjustable fork fork adapted to pallets of different sizes, comprising a mounting frame (1), characterized in that: Adjustment groove (2) is provided inside the mounting frame (1); Slider (3), there are four sliders (3), and all four sliders (3) are slidably connected to the inside of the adjustment groove (2); Built-in adjustable fork (4), two built-in adjustable forks (4) are provided, and the built-in adjustable forks (4) are bolted between the surfaces of the upper and lower sliders (3); The adjustment assembly includes an adjustment motor (5), a double-stitched screw (6), and a slide (7). The adjustment motor (5) is keyed to the double-stitched screw (6). There are two slides (7). The screw holes of the two slides (7) are threaded to the two ends of the surface of the double-stitched screw (6). The top and bottom of one slide (7) are bolted to the surfaces of the two sliders (3). The friction assembly has two components, including a rotating shaft (12), a friction wheel (13), and friction teeth (14). The surface of the rotating shaft (12) is keyed to the axis of the friction wheel (13), and the friction teeth (14) are located at the bottom of the friction wheel (13). The adjustment mechanism has two parts, and the adjustment mechanism is connected to the rotating shaft (12).
2. The built-in distance adjusting fork of claim 1, wherein, The adjustment mechanism includes a micro motor (8), a rotating rod (9), a main bevel gear (10), and a secondary bevel gear (11). The output end of the micro motor (8) is keyed to the top end of the rotating rod (9), the bottom end of the rotating rod (9) is keyed to the center of the main bevel gear (10), the teeth of the main bevel gear (10) mesh with the teeth of the secondary bevel gear (11), and the center of the secondary bevel gear (11) is keyed to the right end of the rotating shaft (12).
3. The built-in distance adjusting fork of claim 2, wherein, The surface of the micro motor (8) is connected to the notch bolt on the top of the built-in adjustable fork (4), and the surface of the rotating rod (9) is rotatedly connected to the inside of the built-in adjustable fork (4).
4. The built-in distance adjusting fork of different specifications of pallet according to claim 1, wherein, The adjustment groove (2) is bolted with a slide rod (15). There are two slide rods (15), and the surface of one slide rod (15) is slidably connected to the sliding holes of the left and right sliders (3).
5. The built-in distance adjusting fork of different specifications of pallets according to claim 1, wherein, The surface of the regulating motor (5) is bolted to the side of the mounting frame (1), both ends of the double threaded screw (6) are rotated and sleeved inside the regulating groove (2), and the surface of the slide (7) is slidably connected to the inside of the regulating groove (2).
6. The built-in distance adjusting fork of different specifications of pallets according to claim 1, wherein, Both ends of the rotating shaft (12) are rotatably connected to the grooves on the fork face of the built-in adjustable fork (4), and the friction wheel (13) and the rotating shaft (12) are eccentrically connected.
Citation Information
Patent Citations
Extensible forklift fork
CN112551445A