A self-positioning fork structure

Abstract

The application provides a self-positioning fork structure in the technical field of forklifts. When the fork body needs to take off the goods, the fork body is inserted into the groove of the goods shelf. When the upper wall surface of the groove of the goods shelf contacts the movable block after the fork body moves upward, the gravity of the goods and the goods shelf is applied as pressure on the movable block, so that the movable block is gradually withdrawn into the fork body. At the same time, the movable block drives the transmission mechanism to move, the transmission mechanism moves to eject the positioning plate, until the upper wall surface of the groove of the goods shelf completely contacts the first contact surface, and the positioning plate completely extends to be attached to the side wall surface of the groove of the goods shelf, so as to limit the position of the fork body in the groove of the goods shelf, position the fork body, reduce the displacement of the fork body relative to the goods shelf caused by the shaking of the goods shelf or the goods, assist in positioning the fork position, and improve the accuracy and efficiency when the fork loads the goods.

Description

Technical Field

[0001] This application belongs to the field of forklift technology, specifically relating to a self-positioning fork structure. Background Technology

[0002] Forklifts are industrial vehicles used for handling and stacking goods, widely used in warehouses, factories, and logistics centers. Forklifts are typically equipped with two forked lifting arms that can insert into the bottom of the pallet to help lift and move heavy objects. However, forklifts are prone to errors during operation, especially when handling small items or when goods are placed high or deep in the pallet. Sometimes, the forks may partially or completely not insert into the bottom of the pallet, making it impossible to pick up the goods smoothly. Currently, some forklifts use laser positioning devices on the forks for positioning, but even when the forks are inserted into the bottom of the rack, slight wobbling or external interference during loading and unloading can cause the goods to shake on the rack, affecting the accuracy and efficiency of loading and unloading. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] In view of this, a self-positioning fork structure is proposed according to an embodiment of this application, comprising:

[0005] Support frame;

[0006] The fork body is movably mounted on the support frame;

[0007] The movable block protrudes in the direction away from the first contact surface. The movable block is movably mounted on the fork body. When the movable block is pressed, it can retract into the fork body.

[0008] The positioning plate is adjustablely mounted on the fork body. The positioning plate is parallel to the second contact surface and protrudes in a direction away from the second contact surface.

[0009] The transmission mechanism has its first end connected to the movable block and its second end connected to the positioning plate.

[0010] The first contact surface is the bearing surface of the fork body on the shelf; the second contact surface is the side of the fork body perpendicular to the first contact surface.

[0011] In one feasible implementation, the fork body includes:

[0012] The mounting part is parallel to the support frame and is adjustablely mounted on the support frame. The mounting part can move along the height direction of the support frame.

[0013] The support section and the mounting section are perpendicular to the support frame and are connected to the support section;

[0014] The first contact surface is the top surface of the support, and the second contact surface is the side surface that contacts the support and the shelf.

[0015] In one feasible implementation, the self-positioning fork structure further includes:

[0016] The guide rail plate is set perpendicular to the support part and passes through the mounting part;

[0017] There are two fork bodies, and the guide rail passes through the mounting parts of both fork bodies.

[0018] In one feasible implementation, the self-positioning fork structure further includes:

[0019] A square plate is movably disposed within the support portion along the length of the support portion;

[0020] The first inclined block is set on the square plate. The top of the first inclined block is provided with a first inclined surface. The first inclined surface is adapted to the movable block. The square plate moves within the support part by pressing the first inclined block by the movable block.

[0021] The first spring is disposed inside the support part. The first end of the first spring is connected to the mounting part, and the other end of the first spring is connected to the square plate. The first spring is used to reset the square plate.

[0022] An inclined groove is provided through the square plate along its height direction, and the first end of the transmission mechanism is slidably provided in the inclined groove.

[0023] A slide groove is provided through the side wall of the support part along the width direction. The second end of the transmission mechanism is slidably provided in the slide groove so that the transmission mechanism can be moved relative to the support part by moving the square plate.

[0024] In one feasible implementation, the self-positioning fork structure further includes:

[0025] The second inclined surface is located at the bottom of the movable block and is adapted to the first inclined surface;

[0026] The second spring is arranged perpendicular to the first contact surface. The first end of the second spring is connected to the movable block, and the second end of the second spring is connected to the square plate. The second spring is used to reset the movable block.

[0027] In one feasible implementation, the transmission mechanism includes:

[0028] A round rod passes through an inclined groove and is slidably positioned within the inclined groove;

[0029] The connecting rod is vertically set at both ends of the round rod. The connecting rod passes through the slide groove and is slidably set in the slide groove. The first end of the connecting rod is connected to the round rod, and the second end of the connecting rod is connected to the positioning plate.

[0030] In one feasible implementation, the self-positioning fork structure further includes:

[0031] A gasket is provided on the side of the positioning plate opposite to the second contact surface.

[0032] In one feasible implementation, the self-positioning fork structure further includes:

[0033] A limiting component is adjustablely mounted on the support.

[0034] The toothed plate is set on the support part along the length direction of the support part, and the limiting component is snapped into the toothed plate.

[0035] In one feasible implementation, the limiting component includes:

[0036] A limiting plate, perpendicular to the first contact surface, is fitted onto the outside of the support portion;

[0037] The third inclined block is movably mounted on the limiting plate. The third inclined block is provided with a toothed block, which is adapted to the toothed plate. The toothed block and the toothed plate are connected by interlocking. The top of the third inclined block is provided with a third inclined surface. The third inclined block is set along the length direction of the support.

[0038] The fourth inclined block is movably mounted on the limiting plate. The bottom of the fourth inclined block is provided with a fourth inclined surface, which is adapted to the third inclined surface.

[0039] The third spring is arranged along the width direction of the support. The first end of the third spring is connected to the third inclined block, and the second end of the third spring is connected to the limiting plate. The third spring is used to reset the third inclined block.

[0040] In one feasible implementation, the self-positioning fork structure further includes:

[0041] Dustproof box, which is installed on the fork body;

[0042] Magnetic plate, the magnetic plate is magnetically attached to the inside of the dustproof box;

[0043] The laser detection component is mounted on the magnetic plate and embedded in the dustproof box.

[0044] The self-positioning fork structure of this application has the following advantages compared with the prior art:

[0045] The self-positioning fork structure provided in this application includes a support frame, a fork body, a movable block, a positioning plate, and a transmission mechanism. The fork body is movably mounted on the support frame, allowing it to move and transport goods to a designated location or move goods to a designated location in coordination with the support frame. When the fork body needs to remove goods, it extends into the groove of the shelf. The fork body moves upward until the upper wall of the shelf groove contacts the movable block. The weight of the goods and the shelf acts as pressure on the movable block, causing it to gradually retract into the fork body. Simultaneously, the movement of the movable block drives the transmission mechanism, which pushes the positioning plate out until the upper wall of the shelf groove is in complete contact with the first contact surface. The positioning plate then fully extends and fits against the side wall of the shelf groove, thereby limiting the position of the fork body within the shelf groove and positioning the fork body. This reduces displacement of the fork body relative to the shelf caused by shelf or goods swaying, provides auxiliary positioning for the forks, and improves the accuracy and efficiency of loading goods with the forks. Attached Figure Description

[0046] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0047] Figure 1 A schematic structural diagram of a self-positioning fork structure according to an embodiment of this application;

[0048] Figure 2 A schematic structural diagram of the fork body of a self-positioning fork structure according to an embodiment of this application;

[0049] Figure 3 A schematic structural diagram of a square plate of a self-positioning fork structure according to an embodiment of this application;

[0050] Figure 4 A schematic structural diagram of the transmission mechanism of a self-positioning fork structure according to an embodiment of this application;

[0051] Figure 5 A schematic structural diagram of the first angle of the limiting component of a self-positioning fork structure according to an embodiment of this application;

[0052] Figure 6 for Figure 5 Enlarged view of point A;

[0053] Figure 7 A schematic structural diagram of the second angle of the limiting component of a self-positioning fork structure according to an embodiment of this application;

[0054] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0055] 11. Support frame; 12. Fork body; 13. Movable block; 14. Positioning plate; 15. Transmission mechanism; 16. Square plate; 17. First inclined block; 18. First spring; 19. Inclined groove; 21. Second inclined surface; 22. Second spring; 23. Shim; 24. Limiting assembly; 25. Toothed plate; 26. Guide rail plate; 27. Dustproof box; 28. Magnetic suction plate; 29. ​​Laser detection assembly; 30. First contact surface; 31. Second contact surface;

[0056] 121. Installation section; 122. Support section;

[0057] 151. Round rod; 152. Connecting rod;

[0058] 241. Limiting plate; 242. Third inclined block; 243. Fourth inclined block; 244. Third spring piece. Detailed Implementation

[0059] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0063] like Figure 1 As shown in the embodiment of this application, a self-positioning fork structure is proposed, including: a support frame 11, a fork body 12, a movable block 13, a positioning plate 14, and a transmission mechanism 15; the fork body 12 is movably mounted on the support frame 11; the movable block 13 protrudes in a direction away from the first contact surface 30, and is movably mounted on the fork body 12, and can retract into the fork body 12 after being pressed; the positioning plate 14 is adjustablely mounted on the fork body 12, the positioning plate 14 is parallel to the second contact surface 31, and protrudes in a direction away from the second contact surface 31; the first end of the transmission mechanism 15 is connected to the movable block 13, and the second end of the transmission mechanism 15 is connected to the positioning plate 14; wherein, the first contact surface 30 is the bearing surface of the fork body 12 against the shelf; the second contact surface 31 is the side of the fork body 12 perpendicular to the first contact surface 30.

[0064] The self-positioning fork structure provided in this application embodiment includes a support frame 11, a fork body 12, a movable block 13, a positioning plate 14, and a transmission mechanism 15. The fork body 12 is movably mounted on the support frame 11, so that the movement of the fork body 12 cooperates with the support frame 11 to move and transport goods to a designated position or to transport goods to a designated position. When the fork body 12 needs to remove goods, the fork body 12 extends into the groove of the shelf. After the fork body 12 moves upward, the upper wall of the shelf groove contacts the movable block 13, and the weight of the goods and the shelf is applied as pressure to the movable block 13. The movable block 13 gradually retracts into the fork body 12. At the same time, the movement of the movable block 13 drives the transmission mechanism 15 to move. The movement of the transmission mechanism 15 pushes out the positioning plate 14 until the upper wall of the shelf groove is in complete contact with the first contact surface 30. The positioning plate 14 extends completely and fits against the side wall of the shelf groove, thereby restricting the position of the fork body 12 in the shelf groove, positioning the fork body 12, reducing the displacement of the fork body 12 relative to the shelf caused by the shaking of the shelf or goods, and providing auxiliary positioning for the fork position to improve the accuracy and efficiency of loading goods with the forks.

[0065] Understandably, each item is placed on an independent shelf. By extending the fork body 12 into the groove of the shelf and contacting the upper wall of the groove with the fork body 12, the shelf and the item are lifted simultaneously, allowing for the picking, placing, and handling of the item.

[0066] In some examples, the support frame 11 is mounted on the vehicle body, and the fork body 12 is movably mounted on the support frame 11. The fork body 12 is driven by a drive device to move along the height direction of the support frame 11 so that the fork body 12 can load and unload goods at a specified height. Then, by moving the vehicle body, the fork body 12 can load and unload goods at a specified position, thus realizing the function of handling and picking up goods.

[0067] Furthermore, two fork bodies 12 are symmetrically arranged on the support frame 11. A limiting arm is provided on the support frame 11, which is located on the outside of the fork body 12 and below the fork body 12, so as to limit the goods to the side when the fork body 12 picks up and unloads goods, prevent the goods from sliding to the sides, and ensure the stability when picking up, placing and handling goods.

[0068] Furthermore, each fork body 12 is provided with two positioning plates 14, which are symmetrically arranged on both sides of the fork body 12. The two positioning plates 14 abut against the two side walls of the groove respectively to ensure the accuracy of the positioning of the fork body 12.

[0069] Specifically, the first contact surface 30 is the top surface of the fork body, and the second contact surface 31 is the side surface of the fork body.

[0070] like Figures 1 to 3 As shown, in one feasible embodiment, the fork body 12 includes: a mounting part 121 and a support part 122; the mounting part 121 is parallel to the support frame 11, the mounting part 121 is adjustablely mounted on the support frame 11, and the mounting part 121 can move along the height direction of the support frame 11; the mounting part 121 is perpendicular to the support frame 11, and the mounting part 121 is connected to the support part 122; wherein, the first contact surface 30 is the top surface of the support part 122, and the second contact surface 31 is the side surface of the support part 122 that contacts the shelf.

[0071] In this technical solution, the mounting part 121 is connected to the support frame 11, and the support part 122 is arranged on the mounting part 121 in a direction perpendicular to the support frame 11. The support part 122 is used to carry goods. When loading and unloading, the support part 122 extends into the groove of the shelf. The first contact surface 30 is the top surface of the support part 122. After the weight of the shelf and the goods is fully applied to the top surface of the support part 122, the top surface of the movable block 13 is in the same plane as the first contact surface 30. The second contact surface 31 is the side surface of the support part 122. After the support part 122 extends into the groove of the shelf and the movable block 13 is retracted into the first contact surface 30, the transmission mechanism 15 pushes the positioning plate 14 to move away from the second contact surface 31 and contact the side wall of the groove to assist in positioning the support part 122, which helps to improve the stability of the fork body 12 when picking up and unloading goods.

[0072] In this technical solution, when the movable block 13 is pressed and moves downward, the transmission mechanism 15 pushes the positioning plate 14 outward; after the movable block 13 is no longer pressed, the movable block 13 resets, and the transmission mechanism 15 pulls back the positioning plate 14, so that the positioning plate 14 fits against the second contact surface 31.

[0073] It is understandable that positioning plates 14 are symmetrically arranged on both sides of the support part 122. The distance between the two positioning plates 14 after they extend to their extreme positions is equal to the width of the groove, so as to ensure that the movable block 13 can be completely retracted to the horizontal position of the first contact surface 30, ensuring that the support part 122 and the shelf are in a large-area contact state, and ensuring the stability of the support for goods and the shelf.

[0074] like Figure 1 and Figure 3 As shown, in one feasible embodiment, the self-positioning fork structure further includes: a guide plate 26, which is arranged perpendicular to the support portion 122 and passes through the mounting portion 121; there are two fork bodies 12, and the guide plate 26 passes through the mounting portions 121 of both fork bodies 12 simultaneously.

[0075] In this technical solution, the guide rail plate 26 is set perpendicular to the first contact surface 30. The guide rail plate 26 limits the two mounting parts 121 to ensure the synchronicity of the movement of the two mounting parts 121 along the height direction of the support frame 11, thereby ensuring the synchronicity of the movement of the two support parts 122 along the height direction of the support frame 11. This allows the two fork bodies 12 to contact the upper wall of the groove simultaneously, ensuring the stability and reliability of the fork bodies 12 in supporting the shelf and goods when picking up and unloading goods.

[0076] In some examples, the mounting portions 121 of the two fork bodies 12 are slidably connected to the guide rail plate 26, so that the mounting portions 121 can slide in a direction perpendicular to the second contact surface 31 under the guidance of the guide rail plate 26. When the positioning plate 14 extends and presses against the side wall of the groove, the support portion 122 can drive the mounting portions 121 to slide slightly on the guide rail plate 26, avoiding the accuracy of the positioning plate 14's auxiliary positioning of the support portion 122 due to interference between the positioning plate 14 and the shelf position. After the fork body 12 takes the goods, the positioning plate 14 continues to contact the side wall of the groove, ensuring that the position between the fork body 12 and the shelf remains unchanged.

[0077] Furthermore, a limiting structure is provided on the guide rail plate 26 to limit the sliding range of the mounting part 121 on the guide rail plate 26 and prevent the fork body 12 from slipping off the guide rail plate 26.

[0078] like Figure 3 and Figure 4As shown, in one feasible embodiment, the self-positioning fork structure further includes: a square plate 16, a first inclined block 17, a first spring plate 18, an inclined groove 19, and a sliding groove; the square plate 16 is movably disposed within the support portion 122 along the length direction of the support portion 122; the first inclined block 17 is disposed on the square plate 16, and a first inclined surface is provided on the top of the first inclined block 17, the first inclined surface being adapted to the movable block 13, and the square plate 16 is moved within the support portion 122 by the movable block 13 pressing the first inclined block 17; the first spring plate 18 is disposed within the support portion 122, the first... The first end of the spring piece 18 is connected to the mounting part 121, and the other end of the first spring piece 18 is connected to the square plate 16. The first spring piece 18 is used to reset the square plate 16. The inclined groove 19 is provided through the square plate 16 along the height direction. The first end of the transmission mechanism 15 is slidably provided in the inclined groove 19. The slide groove is provided through the side wall of the support part 122 along the width direction. The second end of the transmission mechanism 15 is slidably provided in the slide groove so that the transmission mechanism 15 can be moved relative to the support part 122 by moving the square plate 16.

[0079] In this technical solution, the support part 122 has a cavity inside, and the square plate 16 is slidably disposed in the cavity. The square plate 16 is connected to the mounting part 121 through the first spring piece 18. The square plate 16 is fixed with the first inclined block 17. When the forks pick up goods and the movable block 13 is pressed downward, the movable block 13 pushes the first inclined block 17 to move through the first inclined surface, thereby driving the square plate 16 to slide in the cavity. The first spring piece 18 extends and pushes the transmission mechanism 15 through the inclined groove 19 on the square plate 16 to make the transmission mechanism 15 move. Under the limit of the sliding groove, the second end of the transmission mechanism extends outward and pushes the positioning plate 14 to move away from the second contact surface 31 and fit against the side wall of the groove to assist in positioning the support part 122. When the forks unload, the support 122 moves downward and separates from the upper wall of the groove. The pressure above the movable block 13 disappears, the first spring 18 returns to its elastic deformation, and the first spring 18 pulls the square plate 16 and the first inclined block 17 to reset. The first inclined block 17 pushes the movable block 13 upward to reset through the first inclined surface. The inclined groove 19 on the square plate 16 pushes the transmission mechanism 15 to move in the opposite direction. Under the limit of the sliding groove, the second end of the transmission mechanism retracts inward and pulls the positioning plate 14 to move towards the second contact surface 31, so that the positioning plate 14 resets and fits against the second contact surface 31 to ensure the auxiliary positioning effect of the fork body 12 when picking up goods next time.

[0080] In some examples, three transmission mechanisms 15 are provided on each positioning plate 14, and the first end of each transmission mechanism corresponds to a sloping groove 19 to ensure the guiding effect of the sloping groove 19 and the transmission mechanism 15. The positioning plates 14, transmission mechanisms 15 and sloping grooves 19 on both sides of the square plate 16 are symmetrically arranged along the axial direction of the square plate 16 so that the two positioning plates 14 on both sides of the square plate 16 can be extended or retracted simultaneously by the movement of the square plate 16.

[0081] In some examples, a receiving groove is provided above the square plate 16, and the first inclined block 17 is disposed in the receiving groove. After the movable block 13 moves downward, it can be embedded in the receiving groove to ensure that after the movable block 13 is retracted, the top surface of the movable block 13 and the first contact surface 30 can be in the same plane.

[0082] like Figure 2 As shown, in one feasible embodiment, the self-positioning fork structure further includes: a second inclined surface 21 and a second spring 22; the second inclined surface 21 is disposed at the bottom of the movable block 13 and is adapted to the first inclined surface; the second spring 22 is disposed perpendicular to the first contact surface 30, the first end of the second spring 22 is connected to the movable block 13, the second end of the second spring 22 is connected to the square plate 16, and the second spring 22 is used to reset the movable block 13.

[0083] In this technical solution, the movable block 13 contacts and engages with the first inclined surface at the top of the first inclined block 17 via the second inclined surface 21 at its bottom, thereby realizing the motion transmission between the movable block 13 and the first inclined block 17. By setting a second spring piece 22 perpendicular to the first contact surface 30 at the bottom of the movable block 13, the second spring piece 22 resets the movable block 13, and the first spring piece 18 resets the square plate 16. The first spring piece 18 and the second spring piece 22 act simultaneously, further improving the speed and degree of return of the movable block 13, thereby ensuring that the positioning plate 14 returns to its position quickly and fully, which is conducive to improving the accuracy and effectiveness of continuous positioning of the positioning plate 14.

[0084] In one example, two second springs 22 are symmetrically arranged on the active block 13 to prevent the active block 13 from getting stuck during reset and to ensure that the active block 13 resets smoothly.

[0085] Furthermore, a clearance opening is provided on the top surface of the support 122, and when the second spring 22 is in its natural state, the movable block 13 extends out from the clearance opening.

[0086] like Figure 4As shown, in one feasible embodiment, the transmission mechanism 15 includes: a round rod 151 and a connecting rod 152; the round rod 151 passes through the inclined groove 19 and is slidably disposed within the inclined groove 19; the connecting rod 152 is vertically disposed at both ends of the round rod 151, passes through a sliding groove, and is slidably disposed within the sliding groove; the first end of the connecting rod 152 is connected to the round rod 151, and the second end of the connecting rod 152 is connected to the positioning plate 14.

[0087] In this technical solution, the transmission mechanism 15 is U-shaped. The round rod 151 passes through the inclined groove 19 and is slidably connected to the inclined groove 19. Two connecting rods 152 are set at both ends of the round rod 151. They serve as limiting structures for the round rod 151, restricting it within the inclined groove 19, and also as connecting structures between the round rod 151 and the positioning plate 14. The round rod 151 is moved through the inclined groove 19, changing the angle between the connecting rod 152 and the groove, thereby realizing the positional change of the positioning plate 14, moving closer to or further away from it. The structure is simple and the positioning is accurate.

[0088] like Figure 4 As shown, in one feasible embodiment, the self-positioning fork structure further includes a pad 23, which is disposed on the side of the positioning plate 14 opposite to the second contact surface 31.

[0089] In this technical solution, the friction between the positioning plate 14 and the side wall of the groove is increased by the shim 23. During forklift operation, after the shim 23 comes into contact with the rack, there is sufficient friction between the positioning plate 14 and the side wall of the groove. When the forklift has slight displacement or shaking, the shim 23 can keep the fork body 12 in a relatively stable position, thereby preventing the fork body 12 from sliding easily in the rack and improving the auxiliary positioning effect. At the same time, the shim 23 can also absorb some of the vibration caused by the movement of the forklift, thereby reducing the positional displacement of the fork body 12 caused by the vibration of the forklift and improving the overall positioning stability of the device.

[0090] As a preferred option, the pad 23 is made of rubber material, which has a high coefficient of friction and good anti-slip effect; it also has high elasticity and good vibration absorption effect, effectively improving the stability of the fork body 12 during operation.

[0091] like Figure 2 and Figure 5 As shown, in one feasible embodiment, the self-positioning fork structure further includes: a limiting component 24 and a toothed plate 25; the limiting component 24 is adjustablely disposed on the support portion 122; the toothed plate 25 is disposed on the support portion 122 along the length direction of the support portion 122, and the limiting component 24 is snapped into the toothed plate 25.

[0092] In this technical solution, the toothed plate 25 is set on the support plate, and the limiting component 24 is adjustablely set on the support part 122. The limiting component 24 is locked to the support part 122 by engaging and fixing with the toothed plate 25. The limiting component 24 is also limited to the depth of the support part 122 into the groove of the shelf by abutting against the outer wall surface of the shelf, thereby further improving the accuracy of the fork body 12 inserting into the groove.

[0093] like Figure 6 and Figure 7 As shown, in one feasible embodiment, the limiting component 24 includes: a limiting plate 241, a third inclined block 242, a fourth inclined block 243, and a third spring piece 244; the limiting plate 241 is perpendicular to the first contact surface 30 and is fitted onto the outside of the support portion 122; the third inclined block 242 is movably disposed on the limiting plate 241, and a toothed block is provided on the third inclined block 242, the toothed block being adapted to the toothed plate 25, and the toothed block and the toothed plate 25 being connected by interlocking; the top of the third inclined block 242 is provided with A third inclined surface is provided, and the third inclined block 242 is arranged along the length direction of the support portion 122; a fourth inclined block 243 is movably arranged on the limiting plate 241, and a fourth inclined surface is provided at the bottom of the fourth inclined block 243, which is adapted to the third inclined surface; a third spring piece 244 is arranged along the width direction of the support portion 122, the first end of the third spring piece 244 is connected to the third inclined block 242, and the second end of the third spring piece 244 is connected to the limiting plate 241. The third spring piece 244 is used to reset the third inclined block 242.

[0094] In this technical solution, the limiting component 24 includes a limiting plate 241 mounted on the support 122 and a third inclined block 242 that engages with the toothed plate 25. The third inclined block 242 is movably mounted on the limiting plate 241, and a fourth inclined block 243 is movably mounted on the limiting component. The fourth inclined surface at the bottom of the fourth inclined block 243 contacts and engages with the third inclined surface at the top of the third inclined block 242. A third spring piece 244 is provided between the side of the third inclined block 242 away from the toothed plate 25 and the limiting plate 241. When it is necessary to adjust the position of the limiting plate 241 on the support 122, pressing the fourth inclined block 243 causes the fourth inclined surface to press against the third inclined surface, causing the third inclined block 242 to move away from the toothed plate 25. The third inclined block 242 compresses the third spring piece 244, while the toothed block and the toothed plate 25... The engagement between the two parts is released, and the position of the limiting plate 241 on the support part 122 is adjusted by sliding the limiting plate 241. When it is necessary to lock the position of the limiting plate 241 on the support part 122, the fourth inclined block 243 is released, the third inclined block 242 is no longer pressed, the third spring plate 244 returns to its elastic deformation, and the toothed blocks on the third inclined block 242 approach and engage the toothed plate 25 under the push of the third spring plate 244, so as to lock the position of the third inclined block 242 on the support part 122, thereby locking the position of the limiting plate 241 on the support part 122. Thus, by the limiting plate 241 abutting against the outer wall of the shelf, the depth of the support part 122 inserted into the groove is limited, and the insertion and extension of the fork body 12 is assisted in positioning, further improving the accuracy of the position of the fork body 12 inserted into the groove, and preventing it from being misaligned.

[0095] In some examples, two toothed plates 25 are symmetrically arranged on both sides of the support 122. The limiting component 24 includes two third inclined blocks 242 and two third spring pieces 244. The two third inclined blocks 242 are symmetrically arranged on the limiting plate 241, with one third inclined block 242 corresponding to one toothed plate 25, so as to lock on both sides of the limiting plate 241 at the same time, preventing the positioning plate 14 from tilting after being subjected to force, and ensuring the stability and positioning reliability of the limiting plate 241 after locking.

[0096] like Figure 1 and Figure 5 As shown, in one feasible embodiment, the self-positioning fork structure further includes: a dustproof box 27, a magnetic plate 28, and a laser detection component 29; the dustproof box 27 is disposed on the fork body 12; the magnetic plate 28 is magnetically connected to the dustproof box 27; the laser detection component 29 is disposed on the magnetic plate 28 and embedded in the dustproof box 27.

[0097] In this technical solution, the dustproof box 27 is installed on the fork body 12, and the laser detection component 29 is magnetically fixed inside the dustproof box 27 by the magnetic suction plate 28 to protect the laser detection component 29 from impact and ensure the safety of the laser detection component 29 in use. By installing the magnetic suction plate 28 on the laser detection component 29, the magnetic connection between the magnetic suction plate 28 and the dustproof box 27 can significantly save the time of disassembling and assembling the laser detection component 29. When it is necessary to perform maintenance, replacement or recalibration of the laser detection component 29, only appropriate external force needs to be applied to overcome the magnetic force between the magnetic suction plate 28 and the dustproof box 27, and the laser detection component 29 and the magnetic suction plate 28 can be taken out from the inside of the dustproof box 27. The operation is simple and convenient, and effectively improves work efficiency.

[0098] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0099] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A self-positioning fork structure, characterized in that, The self-positioning fork structure includes: Support frame; Fork body, the fork body being movably mounted on the support frame; The movable block protrudes in a direction away from the first contact surface and is movably disposed on the fork body. The movable block can retract into the fork body after being pressed. A positioning plate is adjustablely mounted on the fork body, the positioning plate is parallel to the second contact surface, and the positioning plate protrudes in a direction away from the second contact surface; A transmission mechanism, wherein the first end of the transmission mechanism is connected to the movable block, and the second end of the transmission mechanism is connected to the positioning plate; The fork body includes: The mounting part is parallel to the support frame and is adjustablely mounted on the support frame. The mounting part can move along the height direction of the support frame. A support portion, wherein the mounting portion is perpendicular to the support frame, and the mounting portion is connected to the support portion; The self-positioning fork structure also includes: A square plate, which is movably disposed within the support portion along the length direction of the support portion; A first inclined block is disposed on the square plate. The top of the first inclined block is provided with a first inclined surface, which is adapted to the movable block. The square plate moves within the support part by pressing the first inclined block with the movable block. A first spring is disposed within the support portion, with a first end connected to the mounting portion and the other end connected to the square plate. The first spring is used to reset the square plate. An inclined groove is provided through the square plate along the height direction, and the first end of the transmission mechanism is slidably disposed in the inclined groove. A sliding groove is provided through the side wall of the support part along the width direction of the support part, and the second end of the transmission mechanism is slidably disposed in the sliding groove so as to drive the transmission mechanism to move relative to the support part by moving the square plate; A limiting component, which is adjustablely disposed on the support portion; A toothed plate is disposed on the support portion along the length direction of the support portion, and the limiting component is snapped into the toothed plate; Wherein, the first contact surface is the bearing surface of the fork body on the shelf; the second contact surface is the side surface of the fork body perpendicular to the first contact surface; the first contact surface is the top surface of the support part, and the second contact surface is the side surface of the support part in contact with the shelf.

2. The self-positioning fork structure according to claim 1, characterized in that, The self-positioning fork structure also includes: A guide rail plate, which is arranged perpendicular to the support portion and passes through the mounting portion; There are two fork bodies, and the guide rail plate passes through the mounting parts of both fork bodies simultaneously.

3. The self-positioning fork structure according to claim 1, characterized in that, The self-positioning fork structure also includes: A second inclined surface is disposed at the bottom of the movable block, and the second inclined surface is adapted to the first inclined surface; The second spring is arranged perpendicular to the first contact surface. The first end of the second spring is connected to the movable block, and the second end of the second spring is connected to the square plate. The second spring is used to reset the movable block.

4. The self-positioning fork structure according to claim 3, characterized in that, The transmission mechanism includes: A round rod passes through the inclined groove and is slidably disposed within the inclined groove; A connecting rod is vertically disposed at both ends of the round rod. The connecting rod passes through the slide groove and is slidably disposed within the slide groove. The first end of the connecting rod is connected to the round rod, and the second end of the connecting rod is connected to the positioning plate.

5. The self-positioning fork structure according to claim 1, characterized in that, The self-positioning fork structure also includes: A gasket is disposed on the side of the positioning plate opposite to the second contact surface.

6. The self-positioning fork structure according to claim 1, characterized in that, The limiting component includes: A limiting plate, the limiting plate being perpendicular to the first contact surface, and the limiting plate being fitted onto the outside of the support portion; The third inclined block is movably disposed on the limiting plate. The third inclined block is provided with a toothed block, which is adapted to the toothed plate. The toothed block and the toothed plate are connected by interlocking. The top of the third inclined block is provided with a third inclined surface. The third inclined block is disposed along the length direction of the support portion. The fourth inclined block is movably disposed on the limiting plate, and the bottom of the fourth inclined block is provided with a fourth inclined surface, which is adapted to the third inclined surface; The third spring is arranged along the width direction of the support portion. The first end of the third spring is connected to the third inclined block, and the second end of the third spring is connected to the limiting plate. The third spring is used to reset the third inclined block.

7. A self-positioning fork structure according to any one of claims 1 to 6, characterized in that, The self-positioning fork structure also includes: A dustproof box, which is mounted on the fork body; Magnetic suction plate, which is magnetically connected inside the dustproof box; A laser detection component is disposed on the magnetic plate and embedded in the dustproof box.

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