Fork system

Abstract

The embodiment of the present application provides a kind of fork system, including carrier and fork unit, fork unit includes main drive device, placing plate and a pair of fork assembly, fork assembly includes fixed plate, drive plate and telescopic plate sequentially arranged from outside to inside, fixed plate is fixedly connected with carrier, drive plate is connected with main drive device, telescopic plate is connected on drive plate by telescopic drive device, the telescopic plate is also provided with blocking device, blocking device includes stop lever retraction device and stop lever, drive plate includes C type area with accommodating space, telescopic plate includes a accommodating hole, stop lever is arranged in accommodating hole, and, at least a part of stop lever retraction device is contained in accommodating space, a T type strip is configured to shield the first gap and the second gap between drive plate and fixed plate, telescopic plate, avoid secondary setting protection structure or secondary shell structure, the structure design mode of drive plate, so that the overall space utilization increases greatly, reduce the width of fork assembly.

Description

Technical Field

[0001] The invention relates to a fork system. Background Art

[0002] The telescopic fork is a device used for storing and retrieving materials or transferring items in stereoscopic warehouses and logistics automatic warehousing systems. It is configured on various carriers and is used to cooperate with the carrier to complete the automatic storage and retrieval or transfer of items. Usually, the telescopic fork includes a fork consisting of an outer fork plate, a middle fork plate and an inner fork plate, and a retractable lever is provided on the inner fork plate. When taking materials, the inner fork plate is extended to the cargo storage position, the lever is lowered to clamp the front end of the item to be taken, and then the fork is retracted, and the item to be taken is dragged to the placement platform of the telescopic fork to complete the picking. When unloading, the lever is lowered to clamp the rear end of the item to be taken, and the fork is extended forward to push the item to be placed out of the placement platform and place it in the predetermined position.

[0003] Specifically, reference may be made to the document CN213011833U, entitled: A Chain-Driven Telescopic Clamping Fork, which illustrates a telescopic fork in which the middle fork body is driven for linear motion by a toothed drive device, and the inner fork body is driven for motion by a pulley assembly on the middle fork body, with shift forks provided at both ends of the inner fork body. It has been found in practice that conventional structures employing this structure or similar designs still have the following problems:

[0004] 1. The forks are set at both ends, which makes them easy to loosen when pushing heavy objects;

[0005] Second, in this structural design, on the one hand, a large-area guard plate is required to prevent dust or damage to the structure caused by objects falling onto the forks. On the other hand, this structural design makes the forks occupy a large amount of structural area in the width direction, reducing the space available for placing objects. In particular, when the telescopic forks are configured on an AVG or other mobile cart, the available space of the AVG will be reduced, thereby reducing the efficiency of the AVG. Summary of the Invention

[0006] To this end, the present invention provides a fork system to solve the above technical problems.

[0007] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod being a bottom of said linking rod and said adjusting base is pivotally connected to said linking rod.

[0008] Furthermore, a first gap is formed between the upper end of the fixed plate and the upper end of the driving plate, and a second gap is formed between the upper end of the telescopic plate and the upper end of the driving plate. The driving plate includes a third T-slot with an upward opening, and the T-bar includes a horizontal bar and a vertical bar. The vertical bar is inserted into the third T-slot, and the horizontal bar covers the first gap and the second gap.

[0009] Furthermore, the driving plate includes a plate body, the plate body includes a horizontal plate and a vertical plate located on the horizontal plate, there is a third gap between the lower end of the fixed plate and the lower end of the driving plate, there is a fourth gap between the lower end of the telescopic plate and the lower end of the driving plate, the horizontal plate covers the third gap and the fourth gap, and the vertical plate is completely located in the closed space formed by the fixed plate, the horizontal bar, the telescopic plate, and the horizontal plate.

[0010] Furthermore, the telescopic drive device includes a first drive device and a second drive device, wherein the first drive device includes a first pulley arranged on a drive plate and a first belt wound around the first pulley, and the two ends of the first belt are respectively fixed on the fixed plate and the telescopic plate; the second drive device includes a second pulley and a second belt wound around the second pulley, and the two ends of the second belt are respectively fixed on the fixed plate and the telescopic plate, the first pulley and the second pulley are arranged at opposite ends of the drive plate, and the winding directions of the first belt and the second belt are opposite.

[0011] Furthermore, a straight plate area is provided above the C-shaped area, and the first pulley and the second pulley are provided in the straight plate area.

[0012] Furthermore, the straight plate area is also provided with a first T-slot and a second T-slot, wherein a first mounting hole is provided in the extension direction of the first T-slot, and the first pulley is provided in the first mounting hole, and a second mounting hole is provided in the extension direction of the second T-slot, and the second pulley is provided in the second mounting hole, and the opening directions of the first T-slot and the second T-slot are opposite to each other.

[0013] Furthermore, a first mounting bracket is provided in the first mounting hole, and the first mounting bracket includes a first end and a second end, and the first end and the second end are adjustably fixed in the first T-slot, and a central axis is provided between the first end and the second end, and the first pulley is passed through the central axis.

[0014] Furthermore, the fixed plate and the telescopic plate are both C-shaped, and the upper end and the lower end of the fixed plate are both bent toward the driving plate, and the upper end and the lower end of the telescopic plate are also bent toward the driving plate.

[0015] Furthermore, a shock-absorbing hole is provided between the first T-slot and the second T-slot, and below the second T-slot, and passes through the length direction of the driving plate.

[0016] Furthermore, the driving plate is integrally formed.

[0017] Beneficial effect: An embodiment of the present invention provides a fork system, including a carrier and a fork unit, the fork unit including a main drive device, a placing plate and a pair of fork assemblies, the fork assembly including a fixed plate, a driving plate and a telescopic plate arranged in sequence from the outside to the inside, the fixed plate is fixedly connected to the carrier, the driving plate is connected to the main drive device, and the telescopic plate is connected to the driving plate through the telescopic driving device, the telescopic plate is also provided with a blocking device, the blocking device includes a gear lever retracting device and a gear lever, the driving plate includes a C-shaped area with an accommodating space, the telescopic plate includes an accommodating hole, the gear lever is passed through the accommodating hole, and at least a part of the gear lever retracting device is accommodated in the accommodating space, a T-shaped bar is provided at the upper end of the driving plate, and is configured to shield the first gap and the second gap between the driving plate and the fixed plate and the telescopic plate, to avoid the secondary setting of a protective structure or a secondary shell structure, and the structural design of the driving plate greatly increases the overall space utilization, the structure is compact, and the width of the fork assembly is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional schematic diagram of a fork system according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 The schematic diagram when the placement plate and the retractable plate are not shown;

[0020] Figure 3 for Figure 2The middle A area is enlarged, and the guard plate diagram is not shown;

[0021] Figure 4 for Figure 1 Enlarged diagram of the fork assembly on the left side of the center;

[0022] Figure 5 for Figure 4 Left view;

[0023] Figure 6 for Figure 4 The diagram does not show the fixed plate and the telescopic plate;

[0024] Figure 7 for Figure 6 Upper left view;

[0025] Figure 8 for Figure 6 Enlarged schematic diagram of area B in the middle;

[0026] Figure 9 Schematic diagram of the core board;

[0027] Figure 10 for Figure 9 Left view.

[0028] Description of components in the picture:

[0029] Carrier 10; guard plate 101; bracket plate 11; fork unit 20; cargo space 200; placement plate 201; drive motor 211; main drive wheel 212; main support wheel 213; main belt 214; fork assembly 22; drive plate 221; plate body 2210; horizontal plate 22101; vertical plate 22102; C-shaped area 22103; accommodating space 22103a; straight plate area 22104; mounting groove 22104a; first T-slot 22104b; second T-slot 22104c; third T-slot 22104d; first mounting hole 22104e; second mounting hole 22104f; shock-absorbing holes 22104g and 22104h; T-bar 2211; first drive device 2212; first pulley 2212a; first belt 221 2b; first mounting bracket 2213; second pulley 2214a; second belt 2214b; second mounting bracket 2215; first slide groove 2216a; second slide groove 2216b; roller 2217; fixing plate 222; first belt locking block 2221; second belt locking block 2222; first slide rail 2223; telescopic plate 223; accommodating hole 2231; first blocking device 2232; first gear rod 2232a; first gear rod retracting device 2232b; second blocking device 2233; second gear rod 2233a; first belt fixing block 2234; second belt fixing block 2235; second slide rail 2236; pad 2237; first gap 2241; second gap 2242; third gap 2243; fourth gap 2244. DETAILED DESCRIPTION

[0030] Please refer to Figures 1-10 , an embodiment of the present invention provides a fork system for transporting and transferring items such as cartons or the like, and the present application will be further described below with reference to these drawings.

[0031] The fork system includes a carrier 10 and a fork unit 20 disposed on the carrier 10 .

[0032] In this embodiment, the carrier 10 is a four-way shuttle, which is configured to move in a predetermined direction and quickly switch the direction of movement. It can be understood that the carrier 10 can also be other devices, such as AVG, stacker, etc., which is not limited here.

[0033] At the same time, the carrier 10 generally includes a protective plate 101 for protecting the interior of the carrier 10 .

[0034] The fork unit 20 includes a main drive device, a placement plate 201 and a pair of fork assemblies 22 located on both sides of the placement plate 201. The pair of fork assemblies 22 and the placement plate 201 are arranged to form a cargo space 200. The items to be transported can be placed in the cargo space 200 to move along with the carrier 10. When reaching the predetermined position, the fork assembly 22 pushes the items to be transported to the predetermined position.

[0035] In this embodiment, the placement plate 201 is located above the main drive device and is surrounded by the guard plate 101 to form a space. The main drive device is placed in the space. In addition, the placement plate 201 can also be provided with a ramp to facilitate the items to be transported to enter the cargo space 200 or be pushed out of the cargo space 200.

[0036] The pair of fork assemblies 22 are respectively located on both sides of the cargo space 200 and have substantially the same structure. In the following description, only the fork assembly 22 located on the left side is described, and the fork assembly 22 located on the right side is not described in detail.

[0037] The fork assembly 22 includes a fixed plate 222, a driving plate 221 and a telescopic plate 223 arranged in sequence from the outside to the inside. The fixed plate 222 is fixedly connected to the carrier 10, and the driving plate 221 is connected to the main driving device and is configured to move along the first direction under the drive of the main driving device. The telescopic plate 223 is connected to the driving plate 221 through a telescopic driving device including a pulley set, and moves along with the driving plate 221 in the first direction when the driving plate 221 moves. It can be understood that the telescopic plate 223 is parallel to the movement direction of the driving plate 221.

[0038] Specifically, the carrier 10 is fixedly provided with a bracket plate 11, the fixed plate 222 is fixedly provided on the bracket plate 11, and the driving plate 221 is provided with a first guide device and a second guide device on both sides, and is connected to the fixed plate 222 and the telescopic plate 223 respectively through the first guide device and the second guide device. The first guide device includes a first slide groove 2216a and a first slide rail 2223, and the second guide device includes a second slide groove 2216b and a second slide rail 2236. The first slide groove 2216a and the second slide groove 2216b are respectively connected to the first slide groove 2216a and the second slide rail 2236. It is arranged on both sides of the driving plate 221, the first slide rail 2223 is arranged on the fixed plate 222, and the second slide rail 2236 is arranged on the telescopic plate 223. The extension directions of the first guide device and the second guide device are parallel, so that the driving plate 221 and the telescopic plate 223 are limited to move along the extension directions of the first guide device and the second guide device. For the convenience of description, the extension directions of the first guide device and the second guide device are defined as the first direction. At the same time, it can be understood that the first direction is also the length direction of the fixed plate 222, the driving plate 221 and the telescopic plate 223.

[0039] The telescopic drive device includes a first drive device 2212 and a second drive device, wherein the first drive device 2212 includes a first pulley 2212a provided on the drive plate 221 and a first belt 2212b wound around the first pulley 2212a, and the two ends of the first belt 2212b are respectively fixed on the fixed plate 222 and the telescopic plate 223. Similarly, the second drive device includes a second pulley 2214a and a second belt 2214b wound around the second pulley 2214a, and the two ends of the second belt 2214b are also respectively fixed on the fixed plate 222 and the telescopic plate 223. The first pulley 2212a and the second pulley 2214a are provided at opposite ends of the drive plate 221, and one end of the first belt 2212b is fixed to the fixed plate 222 and the telescopic plate 223. 21 is fixed on the fixed plate 222, and the other end is fixed to the telescopic plate 223 by the first belt fixing block 2234, and one end of the second belt 2214b is fixed to the fixed plate 222 by the second belt locking block 2222, and the other end is fixed to the telescopic plate 223 by the second belt fixing block 2235. When the driving plate 221 moves along the first direction, since one end of the first belt 2212b is fixed to the fixed plate 222, the first pulley 2212a pushes the first belt 2212b to move, and the other end of the first belt 2212b drives the telescopic plate 223 to move along with it. When the driving plate 221 moves in the opposite direction, the second pulley 2214a pushes the second belt 2214b to move, and the telescopic plate 223 moves along with it.

[0040] It can be understood that the first pulley 2212a, the first belt 2212b, the second pulley 2214a, and the second belt 2214b constitute a pulley set.

[0041] A blocking device is also provided on the telescopic plate 223, and the blocking device includes a gear lever retracting device and a gear lever. The driving plate 221 includes a C-shaped area 22103 with a accommodating space 22103a. The telescopic plate 223 includes a accommodating hole 2231, and the gear lever is passed through the accommodating hole 2231. Moreover, at least a part of the gear lever retracting device is accommodated in the accommodating space 22103a. A T-shaped bar 2211 is provided at the upper end of the driving plate 221, and is configured to shield the first gap 2241 and the second gap 2242 between the driving plate 221 and the fixed plate 222 and the telescopic plate 223.

[0042] Specifically, the blocking device includes a first blocking device 2232 and a second blocking device 2233. The second blocking device 2233 and the first blocking device 2232 are spaced apart along the length direction of the telescopic plate 223. The structure of the second blocking device 2233 is basically the same as that of the first blocking device 2232, and will not be repeated here.

[0043] The first blocking device 2232 includes a first gear rod retracting device 2232b and a first gear rod 2232a. The first gear rod 2232a includes a first position and a second position. When the first gear rod 2232a is in the first position, the length direction of the first gear rod 2232a extends toward the cargo space 200, thereby forming a blockage in the cargo space 200 to be able to push the objects in the cargo space 200 to move. When the first gear rod 2232a is in the second position, the length direction of the first gear rod 2232a is roughly parallel to the width direction of the telescopic plate 223 so as not to form a blockage. The first gear rod retracting device 2232b is configured to make the first gear rod 2232a in the first position or the second position. In this embodiment, the first gear rod retracting device 2232b is a rotating device, which switches the position of the first gear rod 2232a by rotation. It can be understood that the first gear rod retracting device 2232b can also be other devices, such as a cylinder, a hydraulic cylinder, a rocker arm, etc.

[0044] The telescopic plate 223 is provided with a first accommodating hole 2231 at a position corresponding to the first gear rod 2232a, and the first gear rod 2232a is inserted into the first accommodating hole 2231. It can be understood that in this case, since the first gear rod 2232a is always located in the first accommodating hole 2231, when pushing objects, the first accommodating hole 2231 will be able to assist in bearing force to reduce damage to the first gear rod 2232a.

[0045] In this embodiment, the fixed plate 222 and the telescopic plate 223 are both C-shaped. Specifically, the upper end and the lower end of the fixed plate 222 are bent toward the driving plate 221, and the upper end and the lower end of the telescopic plate 223 are also bent toward the driving plate 221. When the driving plate 221 and the telescopic plate 223 are not extended, a first space is formed between the fixed plate 222 and the telescopic plate 223. The driving plate 221, the telescopic driving device and the blocking device are all located in the first space, so that the fixed plate 222 and the telescopic plate 223 form a protective structure. It can be understood that at the upper end of the fixed plate 222 and the upper end of the driving plate 221 There is a first gap 2241 between them, and a second gap 2242 is formed between the upper end of the telescopic plate 223 and the upper end of the driving plate 221. A T-bar 2211 is provided at the upper end of the driving plate 221. The T-bar 2211 covers the first gap 2241 and the second gap 2242, so that the fixed plate 222, the T-bar 2211 and the telescopic plate 223 form a closed structure. On the one hand, it can prevent or reduce dust from entering the first space. On the other hand, the T-bar 2211 is provided at the upper end of the driving plate 221 to partially cover the fixed plate 222 and the telescopic plate 223, forming a protective effect when an object falls unexpectedly from above.

[0046] Furthermore, the driving plate 221 includes a third T-slot 22104d, the opening of the third T-slot 22104d faces upward, and the T-bar 2211 includes a horizontal bar and a vertical bar, and the vertical bar is inserted into the third T-slot 22104d.

[0047] Furthermore, the T-shaped bar 2211 is made of elastic material.

[0048] Furthermore, the width of the horizontal strip is sufficient to completely cover the first gap 2241 and the second gap 2242 .

[0049] Please refer to further Figure 9 and Figure 10 ,exist Figure 9 and Figure 10 2 shows the structure and form of the driving plate 221 of the present invention, wherein the driving plate 221 includes a plate body 2210, and the plate body 2210 includes a horizontal plate 22101 and a vertical plate 22102 located on the horizontal plate 22101. The horizontal plate 22101 and the horizontal bar are respectively arranged at both ends of the driving plate 221 in the vertical direction, and a third gap 2243 is provided between the lower end of the fixed plate 222 and the lower end of the driving plate 221, and a fourth gap 2244 is provided between the lower end of the telescopic plate 223 and the lower end of the driving plate 221. The horizontal plate 22101 covers the third gap 2243 and the fourth gap 2244, so that the vertical plate 22102 is completely located in the enclosed space formed by the fixed plate 222, the horizontal bar, the telescopic plate 223, and the horizontal plate 22101.

[0050] The vertical plate 22102 further includes a C-shaped area 22103 and a straight plate area 22104 located above the C-shaped area 22103, wherein the C-shaped area 22103 is recessed toward the fixed plate 222 and forms a receiving space 22103a by itself, and at least a portion of the blocking device is located in the receiving space 22103a, more specifically, a portion of the gear lever retracting device is located in the receiving space 22103a. It can be understood that in this case, the area corresponding to the C-shaped area 22103 actually has a larger space, thereby accommodating the blocking device, so that the fixed plate 222 2 and the telescopic plate 223 is reduced, thereby shortening the width of the fork assembly 22. In practice, the distance between the fixed plate 222 and the telescopic plate 223 can be made only slightly larger than the diameter of the first pulley 2212a or the second pulley 2214a, which can reduce the width by 1 / 3-1 / 2 compared to the conventional design. In addition, the provision of the C-shaped area 22103 gives the drive plate 221 a certain degree of elasticity, especially being able to cushion impacts from above, thereby reducing damage to the drive plate 221 or the telescopic drive device on the drive plate 221 caused by unexpected objects falling onto the fork assembly 22.

[0051] Furthermore, the straight plate area 22104 is provided with a mounting groove 22104a in an area adjacent to the C-shaped area 22103, and the first sliding groove 2216a and the second sliding groove 2216b are provided in the mounting groove 22104a.

[0052] Furthermore, the straight plate area 22104 is further provided with a first T-slot 22104b and a second T-slot 22104c, wherein a first mounting hole 22104e is provided in the extension direction of the first T-slot 22104b, and a first mounting bracket 2213 is provided in the first mounting hole 22104e. The first mounting bracket 2213 is generally in the shape of a "mountain", including a first end and a second end, and the first end and the second end are adjustably fixed to the first T-slot 22104. b, a central axis is provided between the first end and the second end, and the first pulley 2212a is passed through the central axis. It can be understood that in this installation method, the installation and adjustment of the first pulley 2212a will be very convenient. Similarly, a second mounting hole 22104f is provided in the extension direction of the second T-slot 22104c, and a second mounting bracket 2215 is provided in the second mounting hole 22104f, and the second pulley 2214a is rotatably provided on the second mounting bracket 2215.

[0053] Furthermore, shock-absorbing holes (22104g, 22104h) that pass through the length direction of the driving plate 221 are provided between the first T-slot 22104b and the second T-slot 22104c, and below the second T-slot 22104c.

[0054] It can be understood that the opening directions of the first T-slot 22104b and the second T-slot 22104c are opposite to each other.

[0055] Furthermore, a pad 2237 is provided between the telescopic plate 223 and the second slide rail 2236 .

[0056] Furthermore, a roller 2217 is provided below the C-shaped plate.

[0057] Furthermore, the driving plate 221 is integrally formed.

[0058] The main drive device includes a drive motor 211, a main drive wheel 212 connected to the drive motor 211, a main support wheel 213, and a main belt 214 wound around the main drive wheel 212 and the main support wheel 213. The cross plate 22101 is connected to the main belt 214 and is used to move with the main belt 214 when the main belt 214 moves, thereby causing the drive plate 221 to move and the telescopic plate 223 to move together.

[0059] Practice has found that in this embodiment, since the fixed plate 222, T-bar 2211, telescopic plate 223 and cross plate 22101 form a closed space, a secondary protective structure or a secondary shell structure is avoided, that is, there is no need to set a shell structure outside the fixed plate, the drive plate and the telescopic plate. At the same time, the structural design of the drive plate 221 greatly increases the overall space utilization, the structure is compact, and the width of the fork assembly 22 is greatly reduced, thereby increasing the effective width of the cargo space 200. In addition, the structural form of the drive plate 221 reduces the overall structural weight while improving the structural strength, and can improve the impact resistance of the upper side, thereby avoiding damage caused by unexpected falling of upper objects onto the fork assembly 22.

[0060] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fork system, comprising a carrier and a fork unit arranged on the carrier, characterized in that: The fork unit includes a main drive device, a placement plate and a pair of fork assemblies located on both sides of the placement plate, the fork assembly includes a fixed plate, a driving plate and a telescopic plate arranged in sequence from the outside to the inside, the fixed plate is fixedly connected to the carrier, the driving plate is connected to the main drive device and is configured to move in a first direction under the drive of the main drive device, the telescopic plate is connected to the driving plate through a telescopic driving device including a pulley set, and moves along the first direction with the driving plate when the driving plate moves, the telescopic plate is also provided with a blocking device, the blocking device includes a gear lever retracting device and a gear lever, the driving plate includes a C-shaped area with an accommodating space, and the telescopic plate includes a The accommodating hole, the shift rod is inserted into the accommodating hole, and at least a part of the shift rod retracting device is accommodated in the accommodating space, a T-shaped bar is arranged at the upper end of the driving plate, and is configured to shield the first gap and the second gap between the driving plate and the fixed plate and the telescopic plate, a first gap is formed between the upper end of the fixed plate and the upper end of the driving plate, and a second gap is formed between the upper end of the telescopic plate and the upper end of the driving plate, the driving plate includes a third T-shaped slot with an upward opening, the T-shaped bar includes a horizontal bar and a vertical bar, the vertical bar is inserted in the third T-shaped slot, and the horizontal bar shields the first gap and the second gap, the telescopic driving device includes a first driving device and a second driving device , wherein the first driving device includes a first pulley arranged on the driving plate and a first belt wound on the first pulley, and two ends of the first belt are respectively fixed to the fixed plate and the telescopic plate, the second driving device includes a second pulley and a second belt wound on the second pulley, and two ends of the second belt are respectively fixed to the fixed plate and the telescopic plate, the first pulley and the second pulley are arranged at two opposite ends of the driving plate, and the winding directions of the first belt and the second belt are opposite, a straight plate area is provided above the C-shaped area, the first pulley and the second pulley are provided in the straight plate area, and the straight plate area is further provided with a first T-slot and a second T-slot, wherein a first mounting hole is provided in the extending direction of the first T-slot, The first pulley is arranged in the first mounting hole, and a second mounting hole is provided in the extension direction of the second T-slot. The second pulley is arranged in the second mounting hole, and the opening directions of the first T-slot and the second T-slot are opposite to each other. A shock-absorbing hole is provided between the first T-slot and the second T-slot, and below the second T-slot, which passes through the length direction of the driving plate. A first mounting bracket is provided in the first mounting hole, and the first mounting bracket includes a first end and a second end, and the first end and the second end are adjustably fixed in the first T-slot. A central axis is provided between the first end and the second end, and the first pulley is passed through the central axis. The driving plate is integrally formed, and the T-bar is made of elastic material.

2. The fork system according to claim 1, characterized in that: The driving plate includes a plate body, and the plate body includes a horizontal plate and a vertical plate located on the horizontal plate. There is a third gap between the lower end of the fixed plate and the lower end of the driving plate, and a fourth gap between the lower end of the telescopic plate and the lower end of the driving plate. The horizontal plate covers the third gap and the fourth gap, and the vertical plate is completely located in the closed space formed by the fixed plate, the horizontal bar, the telescopic plate, and the horizontal plate.

3. The fork system according to claim 2, characterized in that: The fixed plate and the telescopic plate are both C-shaped, and the upper end and the lower end of the fixed plate are both bent toward the driving plate, and the upper end and the lower end of the telescopic plate are also bent toward the driving plate.

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