Self-positioning type pallet fork structure

Abstract

The invention provides a self-positioning type pallet fork structure and belongs to the technical field of forklifts, and the self-positioning type pallet fork structure is characterized in that when a pallet fork body needs to take down goods, the pallet fork body extends into a groove of a goods shelf, the pallet fork body moves upwards to enable the upper wall face of the groove of the goods shelf to make contact with a movable block, the gravity of the goods and the goods shelf serves as pressure to be applied to the movable block, and the movable block moves upwards; and meanwhile, the movable block moves to drive the transmission mechanism to move, the transmission mechanism moves to eject the positioning plate till the upper wall face of the groove of the goods shelf is in complete contact with the first contact face, the positioning plate completely stretches out to be attached to the side wall face of the groove of the goods shelf, and therefore the position of the goods fork body in the groove of the goods shelf is limited. The pallet fork body is positioned, the situation that the pallet fork body shifts relative to the goods shelf due to shaking of the goods shelf or goods is reduced, auxiliary positioning is conducted on the fork position, and the accuracy and efficiency during loading of the pallet fork are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of forklifts, and in particular relates to a self-positioning fork structure. Background Art

[0002] A forklift is an industrial vehicle used to carry and stack goods. It is widely used in warehouses, factories, logistics centers and other places. Forklifts are usually equipped with two fork-shaped lifting arms that can be inserted into the bottom of the goods to help lift and move heavy objects. Forklifts are prone to errors when operating, especially when carrying small goods or placing goods in higher or deeper positions. The forks may be partially inserted or not inserted at all into the bottom of the pallet, resulting in the inability to forklift the goods smoothly. At present, some forklifts also install laser positioning devices on the fork part to position the fork part, but after the fork is inserted into the bottom of the shelf, during the process of loading and unloading goods, the forklift may shake slightly or be disturbed by external forces, causing the goods to shake on the shelf, affecting the accuracy and efficiency of loading and unloading goods. 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, according to an embodiment of the present application, a self-positioning fork structure is proposed, comprising:

[0005] Support frame;

[0006] A fork body, which is movably arranged on a support frame;

[0007] A movable block protrudes in a direction away from the first contact surface, the movable block is movably arranged on the fork body, and the movable block can be retracted into the fork body after being pressed;

[0008] A positioning plate, the positioning plate is adjustably arranged 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;

[0009] A transmission mechanism, wherein a first end of the transmission mechanism is connected to the movable block, and a second end of the transmission mechanism is 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 surface of the fork body perpendicular to the first contact surface.

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

[0012] The mounting part is parallel to the support frame, and the mounting part is adjustably arranged on the support frame, and the mounting part can move along the height direction of the support frame;

[0013] The supporting part, the mounting part is perpendicular to the supporting frame, and the mounting part is connected to the supporting part;

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

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

[0016] A guide rail plate, which is arranged perpendicular to the support portion and passes through the mounting portion;

[0017] There are two fork bodies in total, and the guide plate passes through the mounting parts of the two fork bodies at the same time.

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

[0019] A square plate, the square plate is movably arranged in the support portion along the length direction of the support portion;

[0020] A first inclined block, the first inclined block is arranged on the square plate, a first inclined surface is arranged on the top of the first inclined block, the first inclined surface is adapted to the movable block, and the movable block squeezes the first inclined block to make the square plate move in the supporting part;

[0021] A first spring sheet, the first spring sheet is arranged in the supporting portion, a first end of the first spring sheet is connected to the mounting portion, and the other end of the first spring sheet is connected to the square plate, and the first spring sheet is used to reset the square plate;

[0022] An inclined groove is provided on the square plate along a height direction of the square plate, and the first end of the transmission mechanism is slidably provided in the inclined groove;

[0023] The slide groove is arranged on 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 arranged in the slide groove to drive the transmission mechanism to move relative to the support part through the movement of the square plate.

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

[0025] A second inclined surface, the second inclined surface is arranged at the bottom of the movable block, and the second inclined surface is adapted to the first inclined surface;

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

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

[0028] A round rod, the round rod passes through the inclined groove, and the round rod is slidably arranged in the inclined groove;

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

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

[0031] The gasket is arranged on the side of the positioning plate facing away from the second contact surface.

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

[0033] A limit assembly, the limit assembly is adjustably arranged on the support portion;

[0034] The tooth plate is arranged on the support part along the length direction of the support part, and the limit assembly is connected with the tooth plate by clamping.

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

[0036] A limiting plate, the limiting plate is perpendicular to the first contact surface and is sleeved on the outer side of the supporting part;

[0037] A third inclined block, the third inclined block is movably arranged on the limit plate, a tooth block is arranged on the third inclined block, the tooth block is adapted to the tooth plate, and the tooth block and the tooth plate are connected by bite; a third inclined surface is arranged on the top of the third inclined block, and the third inclined block is arranged along the length direction of the support portion;

[0038] A fourth inclined block, the fourth inclined block is movably arranged on the limiting plate, a fourth inclined surface is arranged at the bottom of the fourth inclined block, and the fourth inclined surface is adapted to the third inclined surface;

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

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

[0041] A dustproof box, which is arranged on the fork body;

[0042] Magnetic plate, the magnetic plate is magnetically connected in the dustproof box;

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

[0044] Compared with the prior art, the self-positioning fork structure of the present application has the following beneficial effects:

[0045] The self-positioning fork structure provided in the embodiment of the present application includes a support frame, a fork body, a movable block, a positioning plate and a transmission mechanism; the fork body is movably arranged on the support frame, so that the fork body moves to cooperate with the support frame to move the goods at a designated position or to move the goods to a designated position; when the fork body needs to take down the goods, the fork body extends into the groove of the shelf, and after the fork body moves up to make the upper wall surface of the shelf groove contact with the movable block, the gravity of the goods and the shelf is applied to the movable block as pressure, so that the movable block is gradually retracted into the fork body, and at the same time, the movement of the movable block drives the transmission mechanism to move, and the movement of the transmission mechanism pushes out the positioning plate until the upper wall surface of the shelf groove is completely in contact with the first contact surface, and the positioning plate is fully extended to fit the side wall surface of the shelf groove, thereby limiting the position of the fork body in the shelf groove, positioning the fork body, reducing the displacement of the fork body relative to the shelf caused by the shaking of the shelf or the goods, and assisting in positioning the fork position, thereby improving the accuracy and efficiency of the fork loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

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

[0048] Figure 2 A schematic structural diagram of a fork body of a self-positioning fork structure provided in an embodiment of the present application;

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

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

[0051] Figure 5 A schematic structural diagram of a first angle of a limit assembly of a self-positioning fork structure provided in an embodiment of the present application;

[0052] Figure 6 for Figure 5 A magnified image of point A;

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

[0054] in, Figures 1 to 7 The corresponding relationship between the reference numerals and component names in the figure is:

[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 piece; 19. Bevel groove; 21. Second inclined surface; 22. Second spring piece; 23. Gasket; 24. Limiting assembly; 25. Tooth plate; 26. Guide plate; 27. Dustproof box; 28. Magnetic plate; 29. ​​Laser detection assembly; 30. First contact surface; 31. Second contact surface;

[0056] 121. mounting portion; 122. supporting portion;

[0057] 151, round rod; 152, connecting rod;

[0058] 241, a limiting plate; 242, a third inclined block; 243, a fourth inclined block; 244, a third spring piece. DETAILED DESCRIPTION

[0059] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0061] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0062] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0063] like Figure 1 As shown, according to an embodiment of the present 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 arranged on the support frame 11; the movable block 13 protrudes in a direction away from the first contact surface 30, and the movable block 13 is movably arranged on the fork body 12, and the movable block 13 can be retracted into the fork body 12 after being pressed; the positioning plate 14 is adjustably arranged on the fork body 12, the positioning plate 14 is parallel to the second contact surface 31, and the positioning plate 14 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 on the shelf; the second contact surface 31 is the side surface of the fork body 12 perpendicular to the first contact surface 30.

[0064] The self-positioning fork structure provided in the embodiment of the present application 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 arranged on the support frame 11, so that the fork body 12 moves to cooperate with the support frame 11 to move and transport the goods at a designated position or to transport the goods to a designated position; when the fork body 12 is needed to take down the goods, the fork body 12 extends into the groove of the shelf, and after the fork body 12 moves up to make the upper wall surface of the shelf groove contact with the movable block 13, the gravity of the goods and the shelf is applied as pressure on the movable block 13 , so that the movable block 13 is gradually retracted into the fork body 12, and at the same time, the movable block 13 moves to drive the transmission mechanism 15 to move, and the transmission mechanism 15 moves to push the positioning plate 14 out until the upper wall surface of the shelf groove is completely in contact with the first contact surface 30, and the positioning plate 14 is completely extended to fit with the side wall surface of the shelf groove, thereby limiting 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 due to the shaking of the shelf or the goods, and assisting in positioning the fork position, thereby improving the accuracy and efficiency of the fork loading.

[0065] It is understandable that each cargo is placed on an independent shelf, and the cargo is picked up, placed, and carried by extending the fork body 12 into the groove of the shelf, and by contacting the fork body 12 with the upper wall of the groove, and lifting the shelf and the cargo at the same time.

[0066] In some examples, the support frame 11 is installed on the vehicle body, and the fork body 12 is movably installed on the support frame 11. The fork body 12 is driven by a driving 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, and then the vehicle body is moved to load and unload goods at a specified position, thereby realizing the functions of transporting and picking up and placing goods.

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

[0068] Furthermore, each fork body 12 is provided with two positioning plates 14 symmetrically arranged on both sides of the fork body 12 , and the two positioning plates 14 are respectively in contact with two side walls of the groove to ensure the accuracy of 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 a feasible embodiment, the fork body 12 includes: a mounting portion 121 and a supporting portion 122; the mounting portion 121 is parallel to the supporting frame 11, the mounting portion 121 is adjustably arranged on the supporting frame 11, and the mounting portion 121 can move along the height direction of the supporting frame 11; the mounting portion 121 is perpendicular to the supporting frame 11, and the mounting portion 121 is connected to the supporting portion 122; wherein the first contact surface 30 is the top surface of the supporting portion 122, and the second contact surface 31 is the side surface that contacts the supporting portion 122 and the shelf.

[0071] In this technical solution, the mounting portion 121 is connected to the support frame 11, and the support portion 122 is arranged on the mounting portion 121 in a direction perpendicular to the support frame 11. The support portion 122 is used to carry goods. When loading and unloading goods, the support portion 122 extends into the groove of the shelf. The first contact surface 30 is the top surface of the support portion 122. After the gravity of the shelf and the goods completely acts on the top surface of the support portion 122, the top surface of the movable block 13 and the first contact surface 30 are in the same plane; the second contact surface 31 is the side surface of the support portion 122, and the support portion 122 extends into the groove of the shelf. After the movable block 13 is retracted into the first contact surface 30, the transmission mechanism 15 pushes the positioning plate 14 to move in a direction away from the second contact surface 31 and contact with the side wall of the groove, so as to assist in positioning the support portion 122, which is beneficial to improving 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 is reset, and the transmission mechanism 15 pulls back the positioning plate 14, so that the positioning plate 14 is in contact with the second contact surface 31.

[0073] It can be understood that positioning plates 14 are symmetrically arranged on both sides of the support part 122, and the distance between the two positioning plates 14 after extending to the extreme position is equal to the width of the groove, so as to ensure that the movable block 13 can be fully retracted to a position horizontal to the first contact surface 30, to ensure that there is a large area contact state between the support part 122 and the shelf, and to ensure the stability of the support for the goods and the shelf.

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

[0075] In this technical solution, the guide plate 26 is arranged perpendicular to the first contact surface 30, and the two mounting portions 121 are limited by the guide plate 26 to ensure the synchronization of the two mounting portions 121 moving along the height direction of the support frame 11, thereby ensuring the synchronization of the two supporting portions 122 moving along the height direction of the support frame 11, so that the two fork bodies 12 can contact the upper wall surface of the groove at the same time, so as to ensure the stability and reliability of the fork body 12 supporting the shelf and the goods when unloading the goods.

[0076] In some examples, the mounting portions 121 of the two fork bodies 12 are slidably connected to the guide 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 plate 26, so that when the positioning plate 14 is extended and against the side wall of the groove, the support portion 122 can drive the mounting portion 121 to slide slightly on the guide plate 26, thereby avoiding the accuracy of the positioning plate 14 assisting the positioning of the support portion 122 due to interference between the positioning plate 14 and the shelf position. After the fork body 12 picks up the goods, the positioning plate 14 continues to contact the side wall of the groove to ensure that the position between the fork body 12 and the shelf remains unchanged.

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

[0078] like Figure 3 and Figure 4As shown, in a feasible embodiment, the self-positioning fork structure further includes: a square plate 16, a first inclined block 17, a first spring piece 18, an inclined slot 19 and a slide slot; the square plate 16 is movably arranged in the support portion 122 along the length direction of the support portion 122; the first inclined block 17 is arranged on the square plate 16, and a first inclined surface is arranged on the top of the first inclined block 17, and the first inclined surface is adapted to the movable block 13, and the square plate 16 moves in the support portion 122 by squeezing the first inclined block 17 by the movable block 13; the first spring piece 18 is arranged in the support portion 122, and the first inclined surface is adapted to the movable block 13. The first end of the spring piece 18 is connected to the mounting portion 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 arranged on the square plate 16 along the height direction of the square plate 16, and the first end of the transmission mechanism 15 is slidably arranged in the inclined groove 19; the slide groove is arranged on the side wall of the support portion 122 along the width direction of the support portion 122, and the second end of the transmission mechanism 15 is slidably arranged in the slide groove, so as to drive the transmission mechanism 15 to move relative to the support portion 122 through the movement of the square plate 16.

[0079] In this technical solution, a cavity is provided inside the support portion 122, and a square plate 16 is slidably provided in the cavity. The square plate 16 is connected to the mounting portion 121 via a first spring piece 18, and a first inclined block 17 is fixed on the square plate 16. When the fork picks up goods and the movable block 13 is pressed to move 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 is extended, and pushes the transmission mechanism 15 through the inclined groove 19 on the square plate 16 to move the transmission mechanism 15. Under the limitation of the slide groove, the second end of the transmission mechanism extends outward, pushing the positioning plate 14 to move in a direction away from the second contact surface 31 to fit with the side wall of the groove, thereby assisting in positioning the support portion 122. When the fork is unloading, the support part 122 moves downward and separates from the upper wall of the groove, the pressure above the movable block 13 disappears, and the first spring piece 18 restores its elastic deformation. The first spring piece 18 pulls the square plate 16 and the first inclined block 17 to reset, and the first inclined block 17 pushes the movable block 13 to move upward and reset through the first inclined surface. The inclined groove 19 on the square plate 16 pushes the transmission mechanism 15 to make the transmission mechanism 15 move in the opposite direction. Under the limitation of the slide groove, the second end of the transmission mechanism is retracted inward, pulling the positioning plate 14 to move in the direction close to the second contact surface 31, so that the positioning plate 14 is reset and fits the second contact surface 31, so as 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 an inclined slot 19 to ensure the guiding effect of the inclined slot 19 and the transmission mechanism 15. The positioning plates 14, transmission mechanisms 15 and inclined slots 19 on both sides of the square plate 16 are symmetrically arranged along the axial direction of the square plate 16, so that through the movement of the square plate 16, the two positioning plates 14 on both sides of the square plate 16 can be extended or retracted at the same time.

[0081] In some examples, a receiving groove is opened above the square plate 16, and the first inclined block 17 is arranged in the receiving groove. The movable block 13 can be embedded in the receiving groove after moving downward 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 a feasible embodiment, the self-positioning fork structure also includes: a second inclined surface 21 and a second elastic sheet 22; the second inclined surface 21 is arranged at the bottom of the movable block 13, and the second inclined surface 21 is adapted to the first inclined surface; the second elastic sheet 22 is arranged perpendicular to the first contact surface 30, the first end of the second elastic sheet 22 is connected to the movable block 13, the second end of the second elastic sheet 22 is connected to the square plate 16, and the second elastic sheet 22 is used to reset the movable block 13.

[0083] In this technical solution, the movable block 13 realizes the motion transmission between the movable block 13 and the first inclined surface at the top of the first inclined block 17 through the second inclined surface 21 at the bottom contacting and cooperating with the first inclined surface 30 of the first inclined block 17; by arranging a second elastic piece 22 perpendicular to the first contact surface 30 at the bottom of the movable block 13, the second elastic piece 22 is used to reset the movable block 13, and the first elastic piece 18 is used to reset the square plate 16. The first elastic piece 18 and the second elastic piece 22 act at the same time, which further improves the speed and degree of the movable block 13 rebounding and returning to its original position, thereby ensuring that the positioning plate 14 returns quickly and fully, which is beneficial to improving the accuracy and effectiveness of the continuous positioning of the positioning plate 14.

[0084] In one example, two second elastic sheets 22 are symmetrically arranged on the movable block 13 to prevent the movable block 13 from being stuck in resetting and ensure that the movable block 13 is smoothly reset.

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

[0086] like Figure 4As shown, in a 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 the round rod 151 is slidably set in the inclined groove 19; the connecting rod 152 is vertically set at both ends of the round rod 151, the connecting rod 152 passes through the slide groove, and the connecting rod 152 is slidably set in the slide 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, and two connecting rods 152 are arranged at both ends of the round rod 151, which serve as a limiting structure of the round rod 151 to limit the round rod 151 in the inclined groove 19, and also as a connecting structure between the round rod 151 and the positioning plate 14. The round rod 151 is driven to move through the inclined groove 19, and the angle between the connecting rod 152 and the slide groove is changed, thereby realizing the position change of the positioning plate 14 approaching or moving away. The structure is simple and the positioning is precise.

[0088] like Figure 4 As shown, in a feasible implementation manner, the self-positioning fork structure further includes: a gasket 23 , which is disposed on the side of the positioning plate 14 facing away from 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 gasket 23. During the operation of the forklift, after the gasket 23 abuts against the shelf, since there is sufficient friction between the positioning plate 14 and the side wall of the groove, when the forklift has a slight displacement or shake, the gasket 23 can keep the fork body 12 in a relatively stable position, thereby preventing the fork body 12 from sliding easily in the shelf and improving the auxiliary positioning effect; at the same time, the gasket 23 can also absorb part of the vibration caused by the movement of the forklift, thereby reducing the position deviation of the fork body 12 caused by the vibration of the forklift, and can improve the stability of the overall positioning of the device.

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

[0091] like Figure 2 and Figure 5 As shown, in a feasible embodiment, the self-positioning fork structure also includes: a limit assembly 24 and a tooth plate 25; the limit assembly 24 is adjustably arranged on the support portion 122; the tooth plate 25 is arranged on the support portion 122 along the length direction of the support portion 122, and the limit assembly 24 is clamped and connected with the tooth plate 25.

[0092] In this technical solution, the tooth plate 25 is arranged on the support plate, and the limit assembly 24 is adjustably arranged on the support part 122. The limit assembly 24 is fixed to the tooth plate 25 by clamping, so as to lock the limit assembly 24 on the support part 122. The limit assembly 24 is abutted against the outer wall surface of the shelf to limit the depth of the support part 122 extending into the shelf groove, thereby further improving the position accuracy of the fork body 12 inserted into the groove.

[0093] like Figure 6 and Figure 7 As shown, in a feasible embodiment, the limiting assembly 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 the limiting plate 241 is sleeved on the outer side of the support portion 122; the third inclined block 242 is movably arranged on the limiting plate 241, and a tooth block is arranged on the third inclined block 242, and the tooth block is adapted to the tooth plate 25, and the tooth block and the tooth plate 25 are connected by bite; the top of the third inclined block 242 is provided with A third inclined plane is provided, and the third inclined block 242 is arranged along the length direction of the support portion 122; the fourth inclined block 243 is movably arranged on the limiting plate 241, and a fourth inclined plane is arranged at the bottom of the fourth inclined block 243, and the fourth inclined plane is adapted to the third inclined plane; the third elastic sheet 244 is arranged along the width direction of the support portion 122, the first end of the third elastic sheet 244 is connected to the third inclined block 242, and the second end of the third elastic sheet 244 is connected to the limiting plate 241, and the third elastic sheet 244 is used to reset the third inclined block 242.

[0094] In this technical solution, the limiting assembly 24 includes a limiting plate 241 installed on the support portion 122, and a third inclined block 242 engaged with the tooth plate 25, the third inclined block 242 is movably arranged on the limiting plate 241, and the fourth inclined block 243 is movably arranged on the limiting portion, the fourth inclined surface at the bottom of the fourth inclined block 243 contacts and cooperates with the third inclined surface at the top of the third inclined block 242, and a third elastic piece 244 is arranged between the side of the third inclined block 242 away from the tooth plate 25 and the limiting plate 241; when it is necessary to adjust the position of the limiting plate 241 on the support portion 122, the fourth inclined surface is pressed by pressing the fourth inclined surface 243 so that the fourth inclined surface squeezes the third inclined surface, so that the third inclined block 242 moves in the direction away from the tooth plate 25, the third inclined block 242 compresses the third elastic piece 244, and at the same time, the tooth block and the tooth plate 25 The engagement between them is released, and the position of the limit plate 241 on the support part 122 is adjusted by sliding the limit plate 241; when it is necessary to lock the position of the limit plate 241 on the support part 122, the fourth inclined block 243 is released, the third inclined block 242 is no longer compressed, and the third spring piece 244 restores its elastic deformation. The tooth block on the third inclined block 242 approaches and bites the tooth plate 25 under the push of the third spring piece 244, so as to lock the position of the third inclined block 242 on the support part 122, and then lock the position of the limit plate 241 on the support part 122, so that the limit plate 241 abuts against the outer wall surface of the shelf, limits the depth of the support part 122 inserted into the groove, and assists in positioning the insertion of the fork body 12, further improving the accuracy of the position of the fork body 12 inserted into the groove, and preventing it from being over-positioned.

[0095] In some examples, two tooth plates 25 are symmetrically arranged on both sides of the support portion 122, and the limiting assembly 24 includes two third inclined blocks 242 and two third spring plates 244. The two third inclined blocks 242 are symmetrically arranged on the limiting plate 241, and one third inclined block 242 corresponds to one tooth plate 25, so as to lock both sides of the limiting plate 241 at the same time to prevent the positioning plate 14 from tilting after being subjected to force, thereby ensuring the stability and positioning reliability of the limiting plate 241 after being locked.

[0096] like Figure 1 and Figure 5 As shown, in a feasible embodiment, the self-positioning fork structure also includes: a dustproof box 27, a magnetic plate 28 and a laser detection component 29; the dustproof box 27 is arranged on the fork body 12; the magnetic plate 28 is magnetically connected to the dustproof box 27; the laser detection component 29 is arranged on the magnetic plate 28, and the laser detection component 29 is 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 in the dustproof box 27 by the magnetic plate 28 to protect the laser detection component 29 from impact and ensure the safety of the use of the laser detection component 29; by installing the magnetic plate 28 on the laser detection component 29, the magnetic connection between the magnetic plate 28 and the dustproof box 27 can be achieved, which can significantly save the time for disassembly and assembly of the laser detection component 29. When the laser detection component 29 needs to be repaired, replaced or recalibrated, it is only necessary to apply appropriate external force to overcome the magnetic force between the magnetic plate 28 and the dustproof box 27, so that the laser detection component 29 and the magnetic plate 28 can be taken out from the dustproof box 27. The operation is simple and convenient, and the work efficiency is effectively improved.

[0098] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0099] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A self-positioning fork structure, characterized in that: The self-positioning fork structure comprises: Support frame; A fork body, wherein the fork body is movably arranged on the support frame; A movable block, the movable block protrudes in a direction away from the first contact surface, the movable block is movably arranged on the fork body, and the movable block can be retracted into the fork body after being pressed; A positioning plate, the positioning plate is adjustably arranged 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 a first end of the transmission mechanism is connected to the movable block, and a second end of the transmission mechanism is connected to the positioning plate; 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.

2. A self-positioning fork structure according to claim 1, characterized in that: The fork body comprises: A mounting portion, the mounting portion is parallel to the support frame, the mounting portion is adjustably arranged on the support frame, and the mounting portion 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 first contact surface is the top surface of the support portion, and the second contact surface is the side surface that contacts the support portion and the shelf.

3. A self-positioning fork structure according to claim 2, characterized in that: The self-positioning fork structure also includes: A guide rail plate, the guide rail plate is arranged perpendicular to the support portion, and the guide rail plate passes through the mounting portion; There are two fork bodies in total, and the guide plate passes through the mounting portions of the two fork bodies at the same time.

4. A self-positioning fork structure according to claim 2, characterized in that: The self-positioning fork structure also includes: A square plate, wherein the square plate is movably disposed in the support portion along the length direction of the support portion; A first inclined block, wherein the first inclined block is arranged on the square plate, a first inclined surface is arranged on the top of the first inclined block, the first inclined surface is adapted to the movable block, and the movable block presses the first inclined block to make the square plate move in the supporting portion; A first elastic sheet, wherein the first elastic sheet is disposed in the supporting portion, a first end of the first elastic sheet is connected to the mounting portion, and the other end of the first elastic sheet is connected to the square plate, and the first elastic sheet is used to reset the square plate; An inclined groove, the inclined groove is arranged on the square plate along the height direction of the square plate, and the first end of the transmission mechanism is slidably arranged in the inclined groove; A slide groove is provided on the side wall of the support portion along the width direction of the support portion, and the second end of the transmission mechanism is slidably provided in the slide groove to drive the transmission mechanism to move relative to the support portion through the movement of the square plate.

5. A self-positioning fork structure according to claim 4, characterized in that: The self-positioning fork structure also includes: a second inclined surface, the second inclined surface being arranged at the bottom of the movable block, and the second inclined surface being adapted to the first inclined surface; A second spring piece, wherein the second spring piece is arranged perpendicular to the first contact surface, a first end of the second spring piece is connected to the movable block, a second end of the second spring piece is connected to the square plate, and the second spring piece is used to reset the movable block.

6. A self-positioning fork structure according to claim 5, characterized in that: The transmission mechanism comprises: A round rod, the round rod passes through the inclined groove, and the round rod is slidably arranged in the inclined groove; A connecting rod is vertically arranged at both ends of the round rod, the connecting rod passes through the slide groove, the connecting rod is slidably arranged 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.

7. The self-positioning fork structure according to claim 1, characterized in that: The self-positioning fork structure also includes: A gasket is arranged on a side of the positioning plate facing away from the second contact surface.

8. The self-positioning fork structure according to claim 2, characterized in that: The self-positioning fork structure also includes: A limiting component, wherein the limiting component is adjustably arranged on the supporting portion; A tooth plate is arranged on the support portion along the length direction of the support portion, and the limiting assembly is clamped and connected to the tooth plate.

9. The self-positioning fork structure according to claim 8, characterized in that: The limiting component comprises: A limiting plate, wherein the limiting plate is perpendicular to the first contact surface and is sleeved on the outer side of the supporting portion; a third inclined block, the third inclined block being movably arranged on the limit plate, the third inclined block being provided with a tooth block, the tooth block being adapted to the tooth plate, the tooth block being connected to the tooth plate by bite; a third inclined surface being arranged on the top of the third inclined block, the third inclined block being arranged along the length direction of the support portion; A fourth inclined block, the fourth inclined block is movably arranged on the limiting plate, a fourth inclined surface is arranged at the bottom of the fourth inclined block, and the fourth inclined surface is adapted to the third inclined surface; A third spring piece is arranged along the width direction of the support portion, a first end of the third spring piece is connected to the third inclined block, a second end of the third spring piece is connected to the limiting plate, and the third spring piece is used to reset the third inclined block.

10. A self-positioning fork structure according to any one of claims 1 to 9, characterized in that: The self-positioning fork structure also includes: A dustproof box, the dustproof box being arranged on the fork body; A magnetic plate, the magnetic plate being magnetically connected in the dustproof box; A laser detection component is arranged on the magnetic plate and embedded in the dustproof box.

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