Four-tooth fork tool of forklift for loading and unloading medium plates

Abstract

The utility model relates to a four-tooth fork tool of a forklift for loading and unloading medium plates, which comprises a plurality of fork teeth and a suspension mechanism which are arranged at intervals, and one end of each fork tooth is sleeved on a connecting shaft; the plurality of suspension mechanisms are arranged in parallel, and the connecting shaft is vertical to the suspension mechanisms and is divided into a plurality of sections by the plurality of suspension mechanisms; the fork tool is connected to the forklift through the suspension mechanism, and an anti-disengaging device is arranged on the side, close to the forklift, of the suspension mechanism and used for being fixed to the forklift. The forking tool has the advantages that the forking tool is directly installed on the forklift, so that the forklift can directly work long medium plates, the working process is simplified, waste of manpower and other resources is avoided, and the forking tool is simple in structure and convenient to use; due to the fact that the fork teeth are designed to be in the L shape, the fork teeth are more stable when the plates are inserted and lifted, shaking and sliding of the plates in the transportation process are reduced, the contact area between the fork teeth and the plates is increased, and the loading and unloading stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift supporting equipment, in particular to a four-tooth fork for loading and unloading medium and thick plates by a forklift. Background Art

[0002] Medium and thick plates refer to steel plates with a thickness between 5mm and 50mm, which are widely used in the fields of ships, bridges, pressure vessels, heavy machinery, etc. Medium and thick plates have important application value in many industries. For example, in shipbuilding, medium and thick plates are used to construct structures such as hulls and decks; in bridge engineering, medium and thick plates can be used for the steel structure of the bridge body; in the field of heavy machinery, medium and thick plates can be used to manufacture machine shells, support structures, etc. In order to ensure the safety, efficiency and reduce losses during the loading and unloading of medium and thick plates, the relevant industries have adopted a variety of technologies and equipment. The commonly used equipment for loading and unloading medium and thick plates includes cranes and forklifts, among which cranes are the main equipment for loading and unloading medium and thick plates. Different types such as single beam, double beam, and gantry can be selected according to the working occasion and needs. Cranes have some shortcomings due to their high investment cost and large space occupation. They are not very convenient, and the skilled talent resources in the market are relatively scarce, and the labor cost is rising year by year. Therefore, it is urgent to develop four-tooth forks for forklifts, and use them with forklifts to realize the loading and unloading of medium and thick plates to solve the problems of human resources and investment costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a four-tooth fork for loading and unloading medium and thick plates by a forklift. The matching tool can be installed on the forklift so that the forklift can directly operate the medium and thick plates with a long length, simplifying the operation process and avoiding waste of manpower and other resources.

[0004] The utility model solves the above technical problems with the following technical solutions: A four-tooth fork for loading and unloading medium and thick plates by a forklift, comprising: a plurality of fork teeth arranged at intervals and a suspension mechanism, wherein one end of the plurality of fork teeth is sleeved on a connecting shaft;

[0005] The suspension mechanisms are arranged in parallel in a plurality, and the connecting shaft is perpendicular to the suspension mechanisms and is divided into a plurality of sections by the plurality of suspension mechanisms;

[0006] The fork is connected to the forklift through the suspension mechanism, and an anti-slip device is arranged on a side of the suspension mechanism close to the forklift for fixing the forklift to the forklift.

[0007] The beneficial effects of the utility model are as follows: the fork is directly mounted on the forklift, so that the forklift can directly operate medium and thick plates with a long length, simplifying the operation process, avoiding waste of manpower and other resources, having a simple structure and convenient use, and saving the use of lifting equipment to a large extent; because the fork teeth are designed to be "L" shaped, the fork teeth are more stable when inserting and lifting the plates, reducing the shaking and sliding of the plates during transportation, and enhancing the contact area between the fork teeth and the plates, thereby improving the stability during loading and unloading. In addition, the suspension mechanism cooperates with the forklift, and is fixed to the forklift through an anti-slip device, which improves the stability of the connection and further improves the safety of loading and unloading operations.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the number of the fork tines is 4.

[0010] The beneficial effect of adopting the above further scheme is that the four fork teeth arranged at intervals not only enhance the stability and load-bearing capacity of the fork, but also enable the fork teeth to disperse the pressure more evenly when loading and unloading medium and thick plates, thereby improving the loading and unloading efficiency.

[0011] Furthermore, an end plate is provided on the outer side of each of the fork teeth at the two ends of the connecting shaft, and the end plate is parallel to the suspension mechanism and fixedly connected to the connecting shaft.

[0012] The beneficial effect of adopting the above further solution is that by fixedly connecting the end plate to the connecting shaft, a stable structural frame is formed, the rigidity and stability of the entire fork are improved, and it is ensured that the medium and thick plates can be loaded and transported smoothly and safely during operation.

[0013] Furthermore, a connecting box is provided between the suspension mechanism and the end plate and between adjacent suspension mechanisms. The connecting box is parallel to the connecting axis and is provided above the connecting axis.

[0014] The beneficial effect of adopting the above further solution is that the setting of the connection box provides additional support and reinforcement for the fork, reducing the risk of fatigue damage and breakage caused by long-term high-load work. Through the interaction between the connection box and the suspension mechanism, the end plate and the connecting shaft, a more stable overall structure is formed, which improves the overall rigidity and stability of the fork, ensuring that it can smoothly and safely carry and transport medium and thick plates.

[0015] Further, when the number of the fork teeth provided on the connecting shaft between the suspension mechanism and the end plate and between adjacent suspension mechanisms is greater than 1, a hanging eye is further provided on the connecting shaft between adjacent fork teeth;

[0016] The side of the hanging ear away from the connecting shaft is fixedly connected to the connecting box.

[0017] The beneficial effect of adopting the above further solution is: by setting a lifting eye on the connecting shaft between adjacent fork teeth and fixing the lifting eye to the connecting box, a more stable structural system is formed, which not only enhances the connection strength between the connecting shaft and the fork teeth, but also improves the rigidity and stability of the entire fork, ensuring that the medium and thick plates can be carried and transported smoothly and safely during operation. The setting of the lifting eye and the connecting box helps to further optimize the load distribution of the fork when it is under stress. When the fork carries the plate, the lifting eye can share part of the load, thereby reducing the stress pressure on the single fork tooth and the connecting shaft, thereby reducing the risk of fatigue damage and breakage that may be caused by long-term high-load work.

[0018] Furthermore, a fork back plate is provided between the suspension mechanism and the end plate and between adjacent suspension mechanisms. The fork back plate is parallel to the connecting shaft and is provided below the connecting shaft.

[0019] The beneficial effect of adopting the above further scheme is that the provision of the fork tine back plate further enhances the rigidity of the fork, and by welding the fork tine back plate between the suspension mechanism and the end plate and between adjacent suspension mechanisms, a more stable supporting structure is formed, thereby improving the stability of the fork when carrying and transporting plates, and ensuring the safety and efficiency of the operation process.

[0020] Furthermore, the fork tine is slidably connected to the fork tine back plate.

[0021] The beneficial effect of adopting the above further scheme is that the fork teeth and the fork tooth back plate slide relative to each other, so that the fork teeth can move freely within a certain range. According to the working requirements, the forklift driver can adjust the distance between the fork teeth and thus adjust the working range, so that one forklift can complete the loading and unloading operations of medium and thick plates.

[0022] Furthermore, a slide groove is provided on one side of the fork tine back plate close to the fork tine, and the connection between the fork tine and the fork tine back plate is arranged in the slide groove, and the fork tine slides along the slide groove.

[0023] The beneficial effect of adopting the above-mentioned further scheme is: by opening a slide groove on the side of the fork tine back plate close to the fork tine, and providing a protrusion on the fork tine that cooperates with the slide groove, the fork tine can slide along the slide groove. This arrangement allows the position of the fork tine to be flexibly adjusted according to actual needs to adapt to the loading and unloading needs of plates of different sizes and shapes, thereby improving the applicability of the fork and making the operation more convenient and efficient.

[0024] Furthermore, the suspension mechanism comprises: two sets of boxes arranged in parallel and laterally connected to each other, a groove-shaped suspension part is formed above a side of the box close to the forklift, and the suspension part is hooked on the forklift.

[0025] The beneficial effect of adopting the above further scheme is that the box structure is formed by connecting the steel plates of special shapes, so that the suspension mechanism has good rigidity and stability. This structure can resist various stresses and vibrations generated during loading and unloading operations, ensure that the connection between the suspension mechanism and the forklift is stable and reliable, thereby improving the safety and efficiency of the operation. The suspension part is designed to be groove-shaped, so that it can be easily hooked on the upper part of the fork plate of the forklift connecting fork. The connection method is simple, which simplifies the connection process between the suspension mechanism and the forklift, reduces the difficulty of operation, and improves work efficiency. At the same time, it is also convenient to disassemble when necessary to adapt to different operation requirements.

[0026] Furthermore, the anti-slip device is a slot provided on the side of the suspension mechanism close to the forklift, and the slot is connected to the forklift via a pin.

[0027] The beneficial effect of adopting the above further scheme is: an anti-drop device is set on the back of the suspension mechanism, which cooperates with the corresponding connection of the forklift through a slot opened on the side close to the forklift and is fixed with a pin. This connection method effectively prevents the suspension mechanism from falling off during operation, further enhancing the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0029] Figure 2 It is a rear view of an embodiment of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Fork tine; 2. Connecting shaft; 3. Connecting box; 4. Suspension mechanism; 5. End plate; 6. Anti-slip device; 7. Fork tine back plate. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] The utility model provides a four-tine fork for loading and unloading medium and thick plates by a forklift, comprising: a plurality of fork teeth 1 arranged at intervals and a suspension mechanism 4, wherein one end of the plurality of fork teeth 1 is sleeved on a connecting shaft 2, wherein the fork teeth 1 are in an "L" shape, and the end of the "L" shape is connected to the connecting shaft 2, and the number of the fork teeth 1 can be set according to actual needs, and no further limitation is made herein.

[0034] There are also multiple suspension mechanisms 4, which are arranged in parallel, and the suspension mechanisms 4 are arranged perpendicular to the connecting shaft 2. The connecting shaft 2 is divided into multiple sections by the suspension mechanisms 4, and adjacent connecting shafts 2 are disconnected at the suspension mechanisms 4; the suspension mechanisms 4 cooperate with the forklift, and the connection with the forklift is achieved through the suspension mechanisms 4. Specifically, an anti-slip device 6 is provided on the side of the suspension mechanism 4 close to the forklift to fix the fork to the forklift.

[0035] This fork can be installed on a forklift, so that the forklift can directly operate medium and thick plates with a long length, simplifying the operation process, avoiding waste of manpower and other resources, and having a simple structure and convenient use, which can save the use of lifting equipment to a large extent; because the fork tine 1 is designed to be "L" shaped, the fork tine 1 is more stable when inserting and lifting the plate, reducing the shaking and sliding of the plate during transportation, and enhancing the contact area between the fork tine 1 and the plate, thereby improving the stability during loading and unloading. In addition, the suspension mechanism 4 cooperates with the forklift and is fixed to the forklift through the anti-slip device 6, which improves the stability of the connection and further improves the safety of loading and unloading operations.

[0036] Specifically, an end plate 5 is provided on the outer side of the fork teeth 1 located at the two ends of the connecting shaft 2, that is, an end plate 5 is provided on the outer side of the fork teeth 1 located at the two ends in the length direction of the entire fork, the end plate 5 is provided in parallel with the suspension mechanism 4, and the connecting shaft 2 is fixedly connected to the end plate 5. By fixedly connecting the end plate 5 to the connecting shaft 2, a stable structural frame is formed, which improves the rigidity and stability of the entire fork, ensuring that the medium and thick plates can be loaded and transported smoothly and safely during operation.

[0037] Specifically, a connecting box 3 is further provided between the suspension mechanism 4 and the end plate 5, and between adjacent suspension mechanisms 4. The connecting box 3 is also a plate-like structure, and is provided in parallel with the connecting shaft 2. The connecting box 3 is slightly higher than the connecting shaft 2 and is provided not directly above the connecting shaft 2. The provision of the connecting box 3 provides additional support and reinforcement for the fork, reducing the risk of fatigue damage and fracture that may be caused by long-term high-load work. Through the interaction between the connecting box 3 and the suspension mechanism 4, the end plate 5 and the connecting shaft 2, a more stable overall structure is formed, which improves the overall rigidity and stability of the fork, ensuring that it can smoothly and safely carry and transport medium and thick plates.

[0038] Among them, a plurality of fork teeth 1 are arranged on the connecting shaft 2 at intervals, and a plurality of suspension mechanisms 4 are also arranged on the connecting shaft 2. The connecting shaft 2 is divided into multiple sections by the suspension mechanisms 4. Therefore, a plurality of fork teeth 1 can also be arranged on the connecting shaft 2 between the suspension mechanism 4 and the end plate 5 and between adjacent suspension mechanisms 4. When the number of fork teeth 1 arranged on the connecting shaft 2 between the suspension mechanism 4 and the end plate 5 and between adjacent suspension mechanisms 4 is greater than 1, a lifting eye ring should also be arranged on the connecting shaft 2 between adjacent fork teeth 1, and the side of the lifting eye ring facing away from the connecting shaft 2 is fixedly connected to the connecting box 3. By arranging the lifting eye ring on the connecting shaft 2 between adjacent fork teeth 1 and fixing the lifting eye ring to the connecting box 3, a more stable structural system is formed, which not only enhances the connection strength between the connecting shaft 2 and the fork teeth 1, but also improves the rigidity and stability of the entire fork, ensuring that the medium and thick plates can be stably and safely carried and transported during the operation. The arrangement of the lifting eye ring and the connecting box 3 helps to further optimize the load distribution of the fork when it is subjected to force. When the fork carries a plate, the eyelet can share part of the load, thereby alleviating the stress on the single fork tooth 1 and the connecting shaft 2, thereby reducing the risk of fatigue damage and fracture that may be caused by long-term high-load work.

[0039] Specifically, a fork tine back plate 7 is further provided between the suspension mechanism 4 and the end plate 5 and between adjacent suspension mechanisms 4. The fork tine back plate 7 is provided in parallel with the connecting shaft 2 and the connecting box 3. The fork tine back plate 7 is provided on the side of the suspension mechanism 4 or the end plate 5 close to the fork tine 1 and is located as a whole below the connecting shaft 2. In the specific connection process, the fork tine back plate 7 can be welded between the suspension mechanism 4 and the end plate 5 and between adjacent suspension mechanisms 4. The provision of the fork tine back plate 7 further enhances the rigidity of the fork. By welding the fork tine back plate 7 between the suspension mechanism 4 and the end plate 5 and between adjacent suspension mechanisms 4, a more stable supporting structure is formed, which improves the stability of the fork when carrying and transporting plates, and ensures the safety and efficiency of the operation process.

[0040] The fork tine back plate 7 fits with the fork tine 1, and the fork tine 1 is slidably connected with the fork tine back plate 7. Specifically, a slide groove is provided on the side of the fork tine back plate 7 close to the fork tine 1, and correspondingly, a protrusion that cooperates with the slide groove is also provided on the side of the fork tine 1 close to the fork tine back plate 7, so that the fork tine 1 slides along the slide groove. A plurality of fork tines 1 are respectively clamped with the corresponding fork tine back plate 7 through the protrusions behind the fork tine 1 to achieve relative sliding, so that the fork tine 1 can move freely within a certain range. According to the operation requirements, the forklift driver can adjust the distance between the fork tines 1 to adjust the operation range, so that one forklift can complete the loading and unloading operations of medium and thick plates.

[0041] In the above scheme, a slide groove is provided on the side of the fork tine back plate 7 close to the fork tine 1, and a protrusion cooperating with the slide groove is provided on the fork tine 1, so that the fork tine 1 can slide along the slide groove. This arrangement allows the position of the fork tine 1 to be flexibly adjusted according to actual needs to adapt to the loading and unloading requirements of plates of different sizes and shapes, thereby improving the applicability of the fork and making the operation more convenient and efficient.

[0042] Specifically, the suspension mechanism 4 includes: two sets of boxes arranged in parallel and connected to each other laterally, specifically a box structure formed by connecting steel plates of special shapes, and a groove-shaped suspension part is formed above the side of the box close to the forklift, through which the suspension part is hooked on the upper part of the fork tine 1 plate of the forklift connecting fork. The back of the suspension mechanism 4 is provided with an anti-slip device 6, which is a card slot opened on the side of the suspension mechanism 4 close to the forklift, and the card slot is arranged opposite to the corresponding connection of the forklift, and is fixed on the forklift through a pin after cooperating with the forklift. The side of the suspension mechanism 4 connected to the forklift is defined as the back of the suspension mechanism 4.

[0043] In the above scheme, the box structure is formed by connecting the steel plates of special shapes, so that the suspension mechanism 4 has good rigidity and stability. This structure can resist various stresses and vibrations generated during loading and unloading operations, ensuring that the connection between the suspension mechanism 4 and the forklift is stable and reliable, thereby improving the safety and efficiency of the operation. The suspension part is designed to be groove-shaped, so that it can be easily hooked on the upper part of the fork tine 1 plate of the forklift connecting fork. The connection method is simple, which simplifies the connection process between the suspension mechanism 4 and the forklift, reduces the difficulty of operation, and improves work efficiency. At the same time, it is also convenient to disassemble when necessary to meet different operation requirements. An anti-slip device 6 is set on the back of the suspension mechanism 4. By opening a card slot on the side close to the forklift and cooperating with the corresponding connection of the forklift, and fixing it with a pin shaft, this connection method effectively prevents the suspension mechanism 4 from falling off during the operation process, further enhancing the safety of the operation.

[0044] Embodiment 1

[0045] like Figure 1-2 As shown, a four-tine fork for loading and unloading medium and thick plates by a forklift comprises: four fork teeth 1 arranged at intervals and a suspension mechanism 4, one end of the four fork teeth 1 is connected to the connecting shaft 2, wherein the fork teeth 1 are in an "L" shape, and the end of the "L" shape is connected to the connecting shaft 2; in this embodiment, two suspension mechanisms 4 are arranged in parallel, and the suspension mechanisms 4 are arranged perpendicular to the connecting shaft 2. The connecting shaft 2 is divided into three sections by the suspension mechanisms 4 to achieve segmented connection with the fork teeth 1, and the length of the connecting shaft 2 located in the middle is greater than the length of the connecting shaft 2 located on both sides, and the length of the connecting shaft 2 located on both sides is equal. The above-mentioned four-tine fork is connected to the forklift through the suspension mechanism 4, and an anti-slip device 6 is arranged on the side of the suspension mechanism 4 close to the forklift for fixing with the forklift.

[0046] like Figure 1 As shown, an end plate 5 is disposed on the outer side of each of the fork teeth 1 at the two ends of the connecting shaft 2 . The end plate 5 is disposed parallel to the suspension mechanism 4 , and the connecting shaft 2 is fixedly connected to the end plate 5 .

[0047] like Figure 1 As shown, a connecting box 3 is provided between the suspension mechanism 4 and the end plate 5 and between the two suspension mechanisms 4. The connecting box 3 is also a plate-like structure. The connecting box 3 is provided parallel to the connecting shaft 2 and is slightly higher than the connecting shaft 2 and is not directly above the connecting shaft 2.

[0048] like Figure 1 As shown, four fork teeth 1 are arranged at intervals on the connecting shaft 2, one fork tooth 1 is arranged on the connecting shaft 2 between the end plate 5 and the suspension mechanism 4, and two fork teeth 1 are arranged at intervals on the connecting shaft 2 between the two suspension mechanisms 4. Therefore, in order to ensure reasonable force, a hanging ear is also arranged on the connecting shaft 2 between the two suspension mechanisms 4, and the hanging ear is located between the two fork teeth 1, and the side of the hanging ear facing away from the connecting shaft 2 is fixedly connected to the connecting box 3.

[0049] like Figure 1 As shown, a fork back plate 7 is also provided between the suspension mechanism 4 and the end plate 5, and between the two suspension mechanisms 4. The fork back plate 7 is arranged parallel to the connecting shaft 2 and the connecting box 3. The fork back plate 7 is arranged on the side of the suspension mechanism 4 or the end plate 5 close to the fork 1, and is located below the connecting shaft 2 as a whole.

[0050] like Figure 1 As shown, the fork tine 1 is slidably connected to the fork tine back plate 7. Specifically, a sliding groove is provided on the side of the fork tine back plate 7 close to the fork tine 1. Correspondingly, a protrusion that cooperates with the sliding groove is also provided on the side of the fork tine 1 close to the fork tine back plate 7. The protrusion cooperates with the sliding groove so that the fork tine 1 slides along the sliding groove.

[0051] like Figure 1 As shown, the suspension mechanism 4 includes: two groups of boxes arranged in parallel and laterally connected to each other, specifically a box structure connected by steel plates of special shape, and a groove-shaped suspension part is formed above the side of the box close to the forklift, through which the suspension part is hooked on the upper part of the fork tine 1 plate of the forklift connecting fork.

[0052] like Figure 2 As shown, an anti-slip device 6 is provided on the back of the suspension mechanism 4. The anti-slip device 6 is a slot provided on the side of the suspension mechanism 4 close to the forklift. The slot is arranged opposite to the corresponding connection of the forklift and is fixed to the forklift through a pin after cooperating with the forklift.

[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A four-tooth fork for loading and unloading medium and thick plates by a forklift, characterized in that: include: A plurality of fork teeth (1) and a suspension mechanism (4) are arranged at intervals, one end of the plurality of fork teeth (1) being sleeved on the connecting shaft (2); The suspension mechanisms (4) are arranged in parallel in a plurality, and the connecting shaft (2) is perpendicular to the suspension mechanisms (4) and is divided into a plurality of sections by the plurality of suspension mechanisms (4); The fork is connected to the forklift via the suspension mechanism (4); a side of the suspension mechanism (4) close to the forklift is provided with an anti-slip device (6) for fixing the forklift to the forklift; The anti-slip device (6) is a slot provided on the side of the suspension mechanism (4) close to the forklift, and the slot is connected to the forklift via a pin shaft.

2. A four-tooth fork for loading and unloading medium and thick plates by a forklift according to claim 1, characterized in that: The number of the fork teeth (1) is 4.

3. A four-tooth fork for loading and unloading medium and thick plates by a forklift according to claim 1 or 2, characterized in that: An end plate (5) is provided on the outer side of each of the fork teeth (1) at the two ends of the connecting shaft (2); the end plate (5) is parallel to the suspension mechanism (4) and is fixedly connected to the connecting shaft (2).

4. A four-tooth fork for loading and unloading medium and thick plates by a forklift according to claim 3, characterized in that: A connecting box (3) is also provided between the suspension mechanism (4) and the end plate (5), and between adjacent suspension mechanisms (4); the connecting box (3) is parallel to the connecting shaft (2) and is provided above the connecting shaft (2).

5. A four-tooth fork for loading and unloading medium and thick plates by a forklift according to claim 4, characterized in that: When the number of the fork teeth (1) provided on the connecting shaft (2) between the suspension mechanism (4) and the end plate (5) and between adjacent suspension mechanisms (4) is greater than 1, a hanging eye is further provided on the connecting shaft (2) between adjacent fork teeth (1); The side of the hanging eye facing away from the connecting shaft (2) is fixedly connected to the connecting box (3).

6. A four-tooth fork for loading and unloading medium and thick plates by a forklift according to claim 3, characterized in that: A fork tooth back plate (7) is also provided between the suspension mechanism (4) and the end plate (5), and between adjacent suspension mechanisms (4); the fork tooth back plate (7) is parallel to the connecting shaft (2) and is provided below the connecting shaft (2).

7. A four-tooth fork for loading and unloading medium and thick plates by a forklift according to claim 6, characterized in that: The fork tine (1) is slidably connected to the fork tine back plate (7).

8. A four-tooth fork for loading and unloading medium and thick plates by a forklift according to claim 7, characterized in that: A sliding groove is provided on one side of the fork tine back plate (7) close to the fork tine (1), and the connection between the fork tine (1) and the fork tine back plate (7) is arranged in the sliding groove, and the fork tine (1) slides along the sliding groove.

9. A four-tooth fork for loading and unloading medium and thick plates by a forklift according to any one of claims 4 to 8, characterized in that: The suspension mechanism (4) comprises: two sets of boxes arranged in parallel and connected to each other transversely, a groove-shaped suspension part is formed above a side of the box close to the forklift, and the suspension part is hooked on the forklift.

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