Bidirectional deep-position pallet fork

Abstract

The utility model provides a bidirectional deep-position pallet fork. The bidirectional deep-position pallet fork comprises a bearing frame, a driving mechanism and two fork arm mechanisms. The fork arm mechanism comprises a first guide plate, a second guide plate, a third guide plate, a first follow-up assembly, a second follow-up assembly and two material hooking assemblies. The first follow-up assembly is used for driving the second guide plate to extend or retract along with the first guide plate. The second follow-up assembly is used for driving the third guide plate to extend or retract along with the second guide plate. The driving mechanism is used for synchronously driving the two first guide plates to stretch out of the first opening or the second opening or synchronously driving the two first guide plates to retract to the bearing frame. The fork arm mechanism has a long extending distance and can extend into the inner area of the goods shelf. Meanwhile, the first follow-up assembly is used for enabling the second guide plate to stretch out or retract along with the first guide plate, the second follow-up assembly is used for enabling the third guide plate to stretch out or retract along with the second guide plate, the transmission problem of the fork arm mechanism in the long-stroke action process is solved, and the stability during goods moving is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to warehouse handling and storage and retrieval device technical field, concretely relates to a bidirectional deep position fork. BACKGROUND

[0002] With the rapid development of logistics industry, intelligent warehouse emerges as the times require. In the intelligent warehouse, the material transfer is mainly realized by the material handling vehicle.

[0003] The material handling vehicle mainly adopts the hooking and clamping mode to carry the goods on the goods shelf. However, the fork arm of the existing material handling vehicle mostly adopts the two-stage telescopic structure, and the stroke of the fork arm of the two-stage telescopic structure is short, so that the length of the fork arm is limited, the fork arm cannot be deeply inserted into the internal area of the goods shelf to transfer the goods, the application range is relatively narrow, the storage density of the goods shelf is reduced, and the use demand of the existing goods shelf cannot be met. UTILITY MODEL CONTENT

[0004] In view of the defects in the prior art, the utility model aims at providing a bidirectional deep position fork, the fork arm mechanism has a long extension distance, can be deeply inserted into the internal area of the goods shelf, and improves the application range and practicability.

[0005] In order to realize the above-mentioned purpose, the utility model provides a bidirectional deep position fork, which comprises a bearing frame, a first opening and a second opening are oppositely arranged, a driving mechanism is arranged on the bearing frame, and two fork arm mechanisms are arranged on the bearing frame at intervals, the fork arm mechanism comprises: a first guide plate movably arranged on the bearing frame, a second guide plate movably arranged on the inner side of the first guide plate, and a third guide plate movably arranged on the inner side of the second guide plate.

[0006] A first follow-up assembly is used for driving the second guide plate to follow the first guide plate to extend or retract, and the displacement amount of the second guide plate is greater than that of the first guide plate; a second follow-up assembly is used for driving the third guide plate to follow the second guide plate to extend or retract, and the displacement amount of the third guide plate is greater than that of the second guide plate; and two material hooking assemblies are arranged at the two ends of the third guide plate respectively; wherein the driving mechanism is used for synchronously driving two first guide plates to extend out of the first opening or the second opening, or synchronously driving two first guide plates to retract on the bearing frame.

[0007] Preferably, the first follower assembly comprises a first guide provided on the first guide plate and close to the first opening, a flexible first connecting member having one end connected to the carrier frame and the other end connected to the second guide plate after passing around the first guide, the connection of the first connecting member to the carrier frame and the second guide plate being close to the second opening, a second guide provided on the first guide plate and close to the second opening, and a flexible second connecting member having one end connected to the carrier frame and the other end connected to the second guide plate after passing around the second guide, the connection of the second connecting member to the carrier frame and the second guide plate being close to the first opening.

[0008] Preferably, the second follower assembly comprises a third guide provided on the second guide plate and close to the first opening, a flexible third connecting member having one end connected to the first guide plate and close to the second guide and the other end connected to the third guide plate after passing around the third guide, the connection of the third connecting member to the first guide plate and the third guide plate being close to the second opening, a fourth guide provided on the second guide plate and close to the second opening, and a flexible fourth connecting member having one end connected to the first guide plate and close to the first guide and the other end connected to the third guide plate after passing around the fourth guide, the connection of the fourth connecting member to the first guide plate and the third guide plate being close to the first opening.

[0009] Preferably, the first guide and the second guide, and the first connecting member and the second connecting member are arranged in a staggered manner in the height direction; the third guide and the fourth guide, and the third connecting member and the fourth connecting member are arranged in a staggered manner in the height direction; the first guide and the fourth guide, and the first connecting member and the fourth connecting member are at the same horizontal height; and the second guide and the third guide, and the second connecting member and the third connecting member are at the same horizontal height.

[0010] Preferably, the carrier frame is provided with a support plate on each side, the two fork arm mechanisms are arranged between the two support plates, the support plates and the first guide plate are slidably connected through a first sliding assembly, the second guide plate and the first guide plate are slidably connected through a second sliding assembly, and the third guide plate and the second guide plate are slidably connected through a third sliding assembly; one end of the first connecting member and one end of the second connecting member are connected to the support plate on the corresponding side.

[0011] Preferably, the driving mechanism comprises a rotating shaft, a first motor and two transmission assemblies, the rotating shaft is rotatably arranged at the bottom of the bearing frame, the first motor is arranged on the bearing frame and is in transmission connection with the rotating shaft, and the two transmission assemblies are arranged on the two sides of the bearing frame respectively.

[0012] Preferably, the connecting part comprises a plurality of connecting blocks, a plurality of grooves are arranged on the side wall of the connecting block towards the synchronous belt, and the outer side wall of the synchronous belt is provided with protrusions matched with the grooves.

[0013] Preferably, the hooking assembly comprises a second motor and a swing rod, the second motor is arranged at the bottom of the third guide plate, and the swing rod is connected with the second motor.

[0014] The utility model discloses a beneficial effect:

[0015] The utility model discloses a bidirectional deep position fork, through design first guide plate, second guide plate and third guide plate, make the fork arm mechanism have longer stretch out distance, can go into the internal area of goods shelf. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description.

[0017] Figure 1 The structure schematic diagram of the bidirectional deep position fork provided by the embodiment of the utility model is shown in the figure.

[0018] Figure 2 The structure schematic diagram of the first guide plate is shown in the figure.

[0019] Figure 3 The structure schematic diagram of the other side of the first guide plate is shown in the figure.

[0020] Figure 4is a structural schematic diagram of the second guide plate;

[0021] Figure 5 is a schematic structural diagram of the other side of the second guide plate;

[0022] Figure 6 Schematic diagram of the structure of the third guide plate;

[0023] Figure 7 is a schematic structural diagram of the other side of the third guide plate;

[0024] Figure 8 A side view of the supporting plate, the first guide plate, the second guide plate and the third guide plate in cooperation;

[0025] Figure 9 for Figure 8 AA cross-sectional diagram in;

[0026] Figure 10 for Figure 8 BB cross-section diagram in;

[0027] Figure 11 It is a schematic diagram of the structure of the first guide member and the first connecting member, and the fourth guide member and the fourth connecting member cooperating at the same horizontal height;

[0028] Figure 12 It is a schematic diagram of the structure of the second guide member and the second connecting member, and the third guide member and the third connecting member cooperating at the same horizontal height;

[0029] Figure 13 This is a schematic diagram of the structure of the bottom of the bidirectional deep fork;

[0030] Figure 14 It is a structural diagram of the cooperation between the synchronous belt and the connecting block;

[0031] Reference numerals:

[0032] 100. Carrying frame; 101. First opening; 102. Second opening; 103. Support plate; 200. Driving mechanism; 201. Rotating shaft; 202. First motor; 203. Driving pulley; 204. Driven pulley; 205. Synchronous belt; 2051. Protrusion; 206. Connecting block; 2061. Groove; 300. Fork arm mechanism; 301. First guide plate; 302. Second guide plate; 303. Third guide plate; 304. First guide member; 305. First connecting member; 306. Second guide member; 307. Second connecting member; 308. Third guide member; 309. Third connecting member; 310. Fourth guide member; 311. Fourth connecting member; 312. Hook assembly; 3121. Second motor; 3122. Rocker arm; 401. First sliding assembly; 402. Second sliding assembly; 403. Third sliding assembly. DETAILED DESCRIPTION

[0033] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, therefore only as an example, and cannot limit the protection scope of the utility model.

[0034] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by the technical personnel in the field of the utility model.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0036] In addition, the terms "first", "second", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] As Figures 1-14 shown in the embodiment of the utility model, provide a bidirectional deep position fork, including bearing frame 100, drive mechanism 200 and two fork arm mechanism 300. Bearing frame 100 has the first opening 101 and the second opening 102 that can supply goods to go out, and the both sides of bearing frame 100 are equipped with fixed support plate 103, two fork arm mechanism 300 are arranged between two support plates 103, and each fork arm mechanism 300 is installed on the inner side of corresponding support plate 103 (namely the side wall on the side of support plate 103 towards another support plate 103).

[0040] Wherein, fork arm mechanism 300 includes first guide plate 301, second guide plate 302, third guide plate 303, first follow-up assembly, second follow-up assembly and two material hooking assemblies 312, first guide plate 301 is movably arranged on the inner side of support plate 103, second guide plate 302 is movably arranged on the inner side of first guide plate 301, third guide plate 303 is movably arranged on the inner side of second guide plate 302, and two material hooking assemblies 312 are arranged at the both ends of third guide plate 303 respectively.

[0041] First follow-up assembly is used to drive second guide plate 302 to follow first guide plate 301 to stretch out or retract, and makes the displacement of second guide plate 302 greater than the displacement of first guide plate 301. Second follow-up assembly is used to drive third guide plate 303 to follow second guide plate 302 to stretch out or retract, and makes the displacement of third guide plate 303 greater than the displacement of second guide plate 302. Drive mechanism 200 is used to synchronously drive two first guide plates 301 to stretch out first opening 101 or second opening 102, or synchronously drive two first guide plates 301 to retract on bearing frame 100, when first guide plate 301 stretches out or retracts, second guide plate 302 and third guide plate 303 are same with the moving direction of first guide plate 301.

[0042] The bidirectional deep position fork disclosed in the embodiment, by designing first guide plate 301, second guide plate 302 and third guide plate 303, makes that fork arm mechanism 300 has longer stretch-out distance, can go deep into the internal area of goods shelf. Moreover, can stretch out from first opening 101 or second opening 102 respectively, improves the application range and practicality of the fork. At the same time, by using first follow-up assembly to make second guide plate 302 follow first guide plate 301 to stretch out or retract, and by using second follow-up assembly to make third guide plate 303 follow second guide plate 302 to stretch out or retract, solves the transmission problem of fork arm mechanism 300 in long-stroke action process, guarantees the stability when moving goods.

[0043] In one embodiment, the first follower assembly includes a first guide member 304, a first connector 305, a second guide member 306, and a second connector 307. Both the first guide member 304 and the second guide member 306 are pulley structures, and both the first connector 305 and the second connector 307 are flexible belt structures. The first guide member 304 is mounted on the first guide plate 301 near the first opening 101. One end of the first connector 305 is connected to the support plate 103, and the other end passes around the first guide member 304 before connecting to the second guide plate 302. The connections between the first connector 305, the support frame 100, and the second guide plate 302 are both near the second opening 102. The second guide member 306 is mounted on the first guide plate 301 near the second opening 102. One end of the second connector 307 is connected to the support plate 103, and the other end passes around the second guide 306 before connecting to the second guide plate 302. The connections between the second connector 307, the support frame 100, and the second guide plate 302 are both near the first opening 101.

[0044] Furthermore, the second follower assembly includes a third guide member 308, a third connector 309, a fourth guide member 310, and a fourth connector 311. The third guide member 308 and the fourth guide member 310 are both pulley structures, while the third connector 309 and the fourth connector 311 are both flexible belt structures. The third guide member 308 is mounted on the second guide plate 302 and is proximate to the first opening 101. One end of the third connector 309 is connected to the first guide plate 301 and is proximate to the second guide member 306. The other end passes around the third guide 308 and is connected to the third guide plate 303. The connections between the third connector 309 and the first guide plate 301 and the third guide plate 303 are all proximate to the second opening 102. The fourth guide member 310 is installed on the second guide plate 302 and is close to the second opening 102. One end of the fourth connecting member 311 is connected to the first guide plate 301 and is close to the first guide member 304. The other end bypasses the fourth guide member 310 and is connected to the third guide plate 303. The connection points between the fourth connecting member 311 and the first guide plate 301 and the third guide plate 303 are all close to the first opening 101.

[0045] See Figures 2-12 ,exist Figure 11 In the figure, the connection between the first connecting member 305 and the support plate 103 is marked as connection 1, and the connection between the first connecting member 305 and the second guide plate 302 is marked as connection 2. The connection between the second connecting member 307 and the support plate 103 is marked as connection 3, and the connection between the second connecting member 307 and the second guide plate 302 is marked as connection 4. When the first guide plate 301 moves toward the first opening 101 or the second opening 102, the positions of connection 1 and connection 3 do not change.

[0046] exist Figure 12In the middle, the connection between the third connecting piece 309 and the second guide plate 302 is recorded as connection 5, and the connection between the third connecting piece 309 and the third guide plate 303 is recorded as connection 6. The connection between the fourth connecting piece 311 and the second guide plate 302 is recorded as connection 7, and the connection between the fourth connecting piece 311 and the third guide plate 303 is recorded as connection 8.

[0047] The first and second follow-up assemblies will be described by taking the driving of the two fork arm mechanisms 300 by the driving mechanism 200 as an example.

[0048] When the driving mechanism 200 drives the two first guide plates 301 to extend from the first opening 101, since the first guide piece 304 is installed on the first guide plate 301 and close to the first opening 101, one end of the first connecting piece 305 is fixed at the connection 1, and the other end of the first connecting piece 305 is connected with the second guide plate 302 through the connection 2. Therefore, during the movement of the first guide plate 301, the first connecting piece 305 will pull the second guide plate 302 to extend from the first opening 101 together with the first guide plate 301 through the connection 2. At the same time, the displacement amount of the second guide plate 302 is greater than that of the first guide plate 301, that is, the end of the second guide plate 302 extends farther than the end of the first guide plate 301. Moreover, the moving speed of the second guide plate 302 is faster than that of the first guide plate 301.

[0049] Since one end of the third connecting piece 309 is connected with the first guide plate 301 through the connection 5, and the other end is connected with the third guide plate 303 through the connection 6, and the moving speed of the second guide plate 302 is faster than that of the first guide plate 301, during the movement of the first guide plate 301 and the second guide plate 302, the moving speed of the third guide piece 308 is faster than that of the connection 5. At this time, one end of the third connecting piece 309 is equivalent to being pulled by the connection 5, so that the third connecting piece 309 will pull the third guide plate 303 to extend out of the first opening 101 through the connection 6. Moreover, the displacement amount of the third guide plate 303 is greater than that of the second guide plate 302, that is, the end of the third guide plate 303 extends farther than the end of the second guide plate 302, and the moving speed of the third guide plate 303 is faster than that of the second guide plate 302. In this way, the material hooking assembly 312 installed at the end of the third guide plate 303 can move to the rear side of the material stored on the shelf, thereby facilitating the subsequent pushing of the material onto the carrier frame 100.

[0050] When the driving mechanism 200 drives the two first guide plates 301 to retract, since the second guide 306 is installed on the first guide plate 301 and close to the second opening 102, one end of the second connecting piece 307 is fixed at the connecting part 3, and the other end of the second connecting piece 307 is connected with the second guide plate 302 through the connecting part 4. Therefore, in the moving process of the first guide plate 301, the second connecting piece 307 will pull the second guide plate 302 to retract on the carrier frame 100 through the connecting part 4, and the retracting speed of the second guide plate 302 is faster than that of the first guide plate 301.

[0051] Since one end of the fourth connecting piece 311 is connected with the first guide plate 301 through the connecting part 7, and the other end is connected with the third guide plate 303 through the connecting part 8, and the moving speed of the second guide plate 302 is faster than that of the first guide plate 301, therefore, in the moving process of the first guide plate 301 and the second guide plate 302, the moving speed of the fourth guide 310 is faster than that of the connecting part 7, at this time, one end of the fourth connecting piece 311 is equivalent to be pulled by the connecting part 7, then the fourth connecting piece 311 will pull the third guide plate 303 to retract through the connecting part 8, and the moving speed of the third guide plate 303 is also faster than that of the second guide plate 302. In this way, the material hooking assembly 312 can move and push the materials on the shelf to the carrier frame 100.

[0052] The structural design of the first and second follow-up assemblies fully utilizes the space between the support plate 103, the first guide plate 301, the second guide plate 302 and the third guide plate 303, and makes the thickness of the fork arm mechanism 300 thinner while extending the length of the fork arm mechanism 300, occupies less space, and the overall structure is more compact, which improves the space utilization of the fork. In the embodiment, the lengths of the first guide plate 301, the second guide plate 302 and the third guide plate 303 are all 720 mm, and the maximum extension length of the fork arm mechanism 300 reaches 1500 mm. The above structural design can make the fork arm mechanism 300 reach a longer extension length without excessively increasing the lengths of the first guide plate 301, the second guide plate 302 and the third guide plate 303, simplifies the overall structure, and is suitable for promotion.

[0053] In an embodiment, in order to make the overall structure more compact, the first guide 304 and the second guide 306, and the first connecting piece 305 and the second connecting piece 307 are arranged in staggered positions in the height direction. The third guide 308 and the fourth guide 310, and the third connecting piece 309 and the fourth connecting piece 311 are arranged in staggered positions in the height direction. The first guide 304 and the fourth guide 310, and the first connecting piece 305 and the fourth connecting piece 311 are located at the same horizontal height. The second guide 306 and the third guide 308, and the second connecting piece 307 and the third connecting piece 309 are located at the same horizontal height.

[0054] The first connecting member 305, the second connecting member 307, the third connecting member 309 and the fourth connecting member 311 are all belts, wherein the third connecting member 309 and the fourth connecting member 311 are designed with cables, and the cables are externally connected with end heads connected with the power supply system, so that the power supply of the hooking component 312 can be provided, and the use of the drag chain for power supply is not needed, material use is saved, and manufacturing cost is saved.

[0055] In an embodiment, the support plate 103 is slidably connected with the first guide plate 301 through a first sliding assembly 401, the second guide plate 302 is slidably connected with the first guide plate 301 through a second sliding assembly 402, and the third guide plate 303 is slidably connected with the second guide plate 302 through a third sliding assembly 403. The first sliding assembly 401, the second sliding assembly 402 and the third sliding assembly 403 all adopt linear guide rail structures.

[0056] In an embodiment, the driving mechanism 200 comprises a rotating shaft 201, a first motor 202 and two transmission assemblies. The rotating shaft 201 is rotationally arranged at the bottom of the bearing frame 100, and the first motor 202 is arranged on the bearing frame 100 and is in transmission connection with the rotating shaft 201. The two transmission assemblies are arranged on the two sides of the bearing frame 100 respectively. Each transmission assembly comprises a driving pulley, a driven pulley 204, a synchronous belt 205 and a connecting part. The driving pulley is arranged at one end of the rotating shaft 201, the driven pulley 204 is rotationally arranged on the bearing frame 100, the synchronous belt 205 is wound on the driving pulley and the driven pulley 204 respectively, and the connecting part is arranged on the first guide plate 301 and is connected with the synchronous belt 205. Specifically, the connecting part comprises a plurality of connecting blocks 206, a plurality of grooves 2061 are arranged on the side wall of the connecting block 206 facing the synchronous belt 205, and the outer side wall of the synchronous belt 205 is provided with a protrusion 2051 matched with the groove 2061. By rotating the first motor 202 in the forward direction or in the reverse direction, the driving pulley is driven to rotate in the forward direction or in the reverse direction, so that the connecting block 206 and the first guide plate 301 are driven to move towards the first opening 101 or the second opening 102 through the synchronous belt 205.

[0057] In an embodiment, the hooking component 312 comprises a second motor 3121 and a swing rod 3122. The second motor 3121 is arranged at the bottom of the third guide plate 303, and the swing rod 3122 is connected with the second motor 3121. The hooking component 312 is a prior art, and will not be described herein.

[0058] In the description of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present description.

[0059] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A bidirectional deep reach pallet fork, characterized by, The utility model relates to a kind of material hooking device, including: Support frame (100) with oppositely arranged first opening (101) and second opening (102); Driving mechanism (200) provided on the support frame (100); And Two fork arm mechanisms (300) are arranged on the support frame (100) with interval, the fork arm mechanism (300) includes: First guide plate (301) movably arranged on the support frame (100); Second guide plate (302) movably arranged on the inner side of the first guide plate (301); Third guide plate (303) movably arranged on the inner side of the second guide plate (302); First follow-up assembly for driving the second guide plate (302) to follow the first guide plate (301) to extend or retract, and the displacement of the second guide plate (302) is greater than the displacement of the first guide plate (301); Second follow-up assembly for driving the third guide plate (303) to follow the second guide plate (302) to extend or retract, and the displacement of the third guide plate (303) is greater than the displacement of the second guide plate (302);And Two material hooking components (312) are respectively arranged at the two ends of the third guide plate (303); Wherein, the driving mechanism (200) is used for synchronously driving two first guide plates (301) to extend out of the first opening (101) or the second opening (102), or synchronously driving two first guide plates (301) to retract on the support frame (100).

2. The bidirectional deep reach fork according to claim 1, wherein, The first follow-up assembly includes: First guide (304) is arranged on the first guide plate (301) and is close to the first opening (101); Flexible first connecting piece (305), one end is connected with the support frame (100), the other end is connected with the second guide plate (302) after passing the first guide (304), and the connection of the first connecting piece (305) with the support frame (100) and the second guide plate (302) is close to the second opening (102); Second guide (306) is arranged on the first guide plate (301) and is close to the second opening (102);And Flexible second connecting piece (307), one end is connected with the support frame (100), the other end is connected with the second guide plate (302) after passing the second guide (306), and the connection of the second connecting piece (307) with the support frame (100) and the second guide plate (302) is close to the first opening (101).

3. The bidirectional deep reach fork according to claim 2, wherein, The second follow-up assembly includes: Third guide (308) is arranged on the second guide plate (302) and is close to the first opening (101); Flexible third connecting piece (309), one end is connected with the first guide plate (301) and is close to the second guide (306), the other end is connected with the third guide plate (303) after passing the third guide (308), and the connection of the third connecting piece (309) with the first guide plate (301) and the third guide plate (303) is close to the second opening (102); A fourth guide (310) is arranged on the second guide plate (302) and close to the second opening (102); and A flexible fourth connecting piece (311) is connected to the first guide plate (301) and close to the first guide (304) at one end, and connected to the third guide plate (303) after passing around the fourth guide (310) at the other end, and the connection of the fourth connecting piece (311) to the first guide plate (301) and the third guide plate (303) is close to the first opening (101).

4. The bidirectional deep reach fork according to claim 3, wherein, The first guide (304) and the second guide (306), and the first connecting piece (305) and the second connecting piece (307) are arranged in height direction; the third guide (308) and the fourth guide (310), and the third connecting piece (309) and the fourth connecting piece (311) are arranged in height direction; The first guide (304) and the fourth guide (310), and the first connecting piece (305) and the fourth connecting piece (311) are at the same horizontal height; the second guide (306) and the third guide (308), and the second connecting piece (307) and the third connecting piece (309) are at the same horizontal height.

5. A bidirectional deep reach fork according to claim 3 or 4, characterized in that Both sides of the bearing frame (100) are respectively provided with a support plate (103), and two fork arm mechanisms (300) are arranged between the two support plates (103), the support plate (103) and the first guide plate (301) are slidably connected through a first sliding assembly (401), the second guide plate (302) and the first guide plate (301) are slidably connected through a second sliding assembly (402), and the third guide plate (303) and the second guide plate (302) are slidably connected through a third sliding assembly (403); One end of the first connecting piece (305) and one end of the second connecting piece (307) are connected to the corresponding side of the support plate (103).

6. The bidirectional deep reach fork according to claim 1, wherein, The driving mechanism (200) comprises a rotating shaft (201), a first motor (202) and two transmission assemblies, the rotating shaft (201) is rotatably arranged at the bottom of the bearing frame (100), the first motor (202) is arranged on the bearing frame (100) and is in transmission connection with the rotating shaft (201); Two transmission assemblies are arranged on both sides of the bearing frame (100), the transmission assembly comprises a driving pulley (203), a driven pulley (204), a synchronous belt (205) and a connecting part, the driving pulley is arranged at one end of the rotating shaft (201), the driven pulley (204) is rotatably arranged on the bearing frame (100), the synchronous belt (205) is wound around the driving pulley and the driven pulley (204) respectively, and the connecting part is arranged on the first guide plate (301) and connected with the synchronous belt (205).

7. The bidirectional deep reach fork according to claim 6, wherein, The connecting part comprises a plurality of connecting blocks (206), and a plurality of grooves (2061) are arranged on the side wall of the connecting block (206) towards the synchronous belt (205); the outer side wall of the synchronous belt (205) is provided with protrusions (2051) matched with the grooves (2061).

8. The bidirectional deep reach fork according to claim 1, wherein, The material hooking assembly (312) comprises a second motor (3121) and a swing rod (3122); the second motor (3121) is arranged at the bottom of the third guide plate (303); and the swing rod (3122) is connected with the second motor (3121).

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