Hidden forklift robot

Abstract

This application provides a stealthy forklift robot, including a vehicle body and at least two fork assemblies. The vehicle body includes at least two receiving slots. The fork assemblies are at least partially located within the receiving slots and are extendable or retractable relative to the vehicle body. Each fork assembly includes a bottom plate and a top plate movably connected. When the fork assemblies are retracted, the top plate is at least partially located within the receiving slots. The fork assemblies are used to pick up a crossbeam pallet, which includes a pallet and multiple crossbeams disposed at the bottom of the pallet. Along the length of the fork assemblies, the length of the top plate is L1, and the distance between the two largest crossbeams is L2, where L1 > L2, ensuring that the top plate contacts both of the largest crossbeams. Due to the increased length of the top plate, it can contact all three crossbeams of the crossbeam pallet, providing more points of contact. During carrying, the crossbeam pallet is less prone to tilting, reducing the risk of goods tipping over.

Description

Technical Field

[0001] This application relates to the field of pallet handling technology, and in particular to a stealthy forklift robot. Background Technology

[0002] The stealth forklift robot is an unmanned material handling device widely used in industrial production and logistics warehousing. It achieves automatic operation through a built-in navigation and control system, automatically transporting goods according to preset paths, greatly improving production efficiency and reducing the labor intensity of workers.

[0003] Hidden forklift robots can be used to carry beam pallets. However, when carrying long beam pallets, conventional hidden forklift robots are prone to tilting or even causing the goods on the beam pallet to tip over. Utility Model Content

[0004] The purpose of this application is to provide a stealthy forklift robot to solve the problem of tilting or even tipping over of goods on the pallet when the stealthy forklift robot is carrying a long beam pallet. The specific technical solution is as follows:

[0005] This application provides a stealthy forklift robot, comprising: a vehicle body including at least two receiving slots; at least two fork leg assemblies, at least partially located within the receiving slots and capable of extending or retracting relative to the vehicle body, the fork leg assembly including a bottom plate and a top plate movably connected, wherein when the fork leg assembly is in the retracted state, the top plate is at least partially located within the receiving slots; the fork leg assembly is used to pick up a crossbeam pallet, the crossbeam pallet including a pallet plate and a plurality of crossbeams disposed at the bottom of the pallet plate, the length of the top plate along the length direction of the fork leg assembly is L1, the distance between the two crossbeams with the largest spacing is L2, L1 > L2, such that the top plate is in contact with the two crossbeams with the largest spacing.

[0006] In some embodiments, the top plate includes a body portion and an extension portion. The body portion is disposed opposite to the bottom plate, and the extension portion is located on the side of the body portion away from the front end, such that the length of the top plate is greater than the length of the bottom plate in the fork assembly. The top of the vehicle body is also provided with a mounting groove, which communicates with the receiving groove and is arranged in parallel. The opening direction of the mounting groove is consistent with the opening direction of the receiving groove. When the fork assembly is in the retracted state, the bottom plate is housed in the receiving groove, the body portion is housed in the receiving groove, and the extension portion is housed in the mounting groove.

[0007] In some embodiments, the length of the top plate is equal to the length of the bottom plate, and when the fork assembly is in the retracted state, both the top plate and the bottom plate are housed within the receiving groove.

[0008] In some embodiments, the width of the crossbeam is H, L1 = L2 + H, or 1.01 ≤ L1 / L2 ≤ 1.1.

[0009] In some embodiments, the body length of the lurking forklift robot is L3, where 0.7 < L1 / L3 < 0.9.

[0010] In some embodiments, the base plate and the vehicle body are slidably connected by a two-stage telescopic guide mechanism.

[0011] In some embodiments, the secondary telescopic guide mechanism includes: a first sliding member, respectively disposed on the two side walls of the receiving groove; a second sliding member, respectively disposed on both sides of the base plate along its width direction, the second sliding member being arranged in pairs with the first sliding member; and an intermediate sliding member, respectively connecting one pair of the first sliding member and the second sliding member, the intermediate sliding member sliding relative to the first sliding member, and the second sliding member sliding relative to the intermediate sliding member.

[0012] In some embodiments, the first sliding member is a first sliding groove provided on both sides of the receiving groove; the middle sliding member is provided with a first slider on one side and a second sliding groove on the other side, and the first slider is slidably connected to the first sliding groove; the second sliding member is a second slider provided on both sides of the base plate along its width direction, and the second slider is slidably connected to the corresponding second sliding groove.

[0013] In some embodiments, the first sliders of the two intermediate sliders are connected by a connector.

[0014] In some embodiments, the vehicle body includes a chassis and a platform disposed on the chassis. The chassis includes: a left frame; a right frame; and a middle frame, including a middle frame body and a through beam disposed at one end of the middle frame body. The through beam body has two connecting brackets on one side facing the middle frame body. The connecting brackets are parallel to and spaced apart from the middle frame body. The two ends of the through beam body are respectively connected to the top surfaces of the left frame body and the right frame body. One of the connecting brackets is connected to the inner side surface of the left frame body, and the other connecting bracket is connected to the inner side surface of the right frame body.

[0015] The lurking forklift robot provided in this application extends its forks and moves the fork leg assembly to a designated preset position to begin lifting. The top plate of the fork leg assembly contacts the two crossbeams with the largest spacing between them, increasing the contact area between the top plate and the crossbeams. This significantly reduces the risk of the crossbeam pallet tilting or even overturning, enabling the carrying of large-sized crossbeam pallets.

[0016] Since the top plate and the crossbeams with the largest gaps can all make contact, there are more points of force, and the crossbeams are less likely to tilt during carrying, thus reducing the risk of goods on the crossbeams tipping over.

[0017] Meanwhile, due to the extended top plate of the forklift assembly, it can carry not only oversized beam pallets but also standard beam pallets. When carrying standard beam pallets, the top plate makes contact with all three beams of the pallet, improving carrying stability. By lengthening the top plate of the forklift assembly, the low-profile forklift robot can be used not only to carry large beam pallets but also standard-sized beam pallets, expanding its application range.

[0018] Of course, any product implementing this application does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is an axonometric view of the beam tray provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 Bottom view of the middle crossbeam tray;

[0022] Figure 3 for Figure 1 Left side view of the middle crossbeam tray;

[0023] Figure 4 for Figure 1 Front view of the middle crossbeam tray;

[0024] Figure 5 This application provides a structural schematic diagram of a stealthy forklift robot in its unextended fork state for an embodiment of the present application;

[0025] Figure 6a This application provides a structural schematic diagram of a stealthy forklift robot in the extended fork state for an embodiment of the present application;

[0026] Figure 6b This application provides a schematic diagram of the structure of a stealthy forklift robot carrying a crossbeam pallet in an extended fork state.

[0027] Figure 7a This application provides a schematic diagram of a lurking forklift robot with its forks extended and positioned at a low level.

[0028] Figure 7b This application provides a schematic diagram of a lurking forklift robot with its forks extended and positioned at a high level.

[0029] Figure 7c A schematic diagram of a lurking forklift robot extending its forks and carrying a pallet at a high position is provided for an embodiment of this application.

[0030] Figure 8 This is a schematic diagram of the structure of the fork-leg assembly provided in the embodiments of this application;

[0031] Figure 9 for Figure 6a Enlarged diagram of part A in the middle;

[0032] Figure 10 This is a schematic diagram of the chassis structure provided in an embodiment of this application;

[0033] Figure 11 This is a schematic diagram of the intermediate frame provided in an embodiment of this application.

[0034] The attached figures are labeled as follows:

[0035] Vehicle body 10; receiving slot 11; mounting slot 12; chassis 13; left frame 131; right frame 132; middle frame 133; middle frame 1331; through beam 1332; connecting bracket 1333; platform 14; fork leg assembly 20; base plate 21; drive wheel 211; driven wheel 212; first motor 213; lifting mechanism 22; lead screw assembly 221; lead screw 2211; nut 2212; connecting rod 222; second motor 223; top plate 23; main body 231; extension 232; crossbeam tray 30; support plate 31; crossbeam 32; outrigger 33; opening 331; secondary telescopic guide mechanism 40; first sliding member 41; middle sliding member 42; first slider 421; second slide 422; connecting member 43; length direction X; width direction Y. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of this application.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, Figure 1 A schematic diagram of the beam tray 30 provided in an embodiment of this application; Figure 2 for Figure 1 Bottom view of the middle crossbeam tray 30; Figure 3 for Figure 1 Left side view of the middle crossbeam tray 30; Figure 4 for Figure 1 A front view of the crossbeam pallet 30. The bottom of the crossbeam pallet 30 typically has three crossbeams 32 in the fork entry direction. The top plate 23 of a conventional stealth forklift usually only has stable contact with two or even just one of the crossbeams 32 of the crossbeam pallet 30, causing the crossbeam pallet 30 to be in an unstable state, such as tilting, during carrying, which may lead to the palletized goods tipping over in severe cases. To solve the above problems, this application provides a stealth forklift robot, such as... Figure 5 , Figure 6a and Figure 6b As shown, Figure 5 This application provides a schematic diagram of the structure of a stealthy forklift robot in the unextended fork state, which is an embodiment of the present application. Figure 6a This application provides a structural schematic diagram of a stealthy forklift robot in the extended fork state for an embodiment of the present application; Figure 6b This application provides a structural schematic diagram of a stealthy forklift robot carrying a crossbeam pallet 30 in an extended fork state. The stealthy forklift robot includes a body 10 and at least two fork assemblies 20. The body 10 includes at least two receiving slots 11. The fork assemblies 20 are at least partially located within the receiving slots 11 and can extend or retract relative to the body 10. The fork assemblies 20 include a bottom plate 21 and a top plate 23 that are movably connected. Optionally, the top plate 23 is connected to the bottom plate 21 via a lifting mechanism 22. When the fork assemblies 20 are retracted, the top plate 23 is at least partially located within the receiving slots 11. The fork assemblies 20 are used to pick up the crossbeam pallet 30, which includes a support plate 31 and a plurality of crossbeams 32 disposed at the bottom of the support plate 31. The length of the top plate 23 is L1, and the distance between the two crossbeams 32 with the largest spacing is L2, where L1 > L2, such that the top plate 23 is in contact with both of the two crossbeams 32 with the largest spacing.

[0038] The distance between the two crossbeams 32 with the largest gap refers to the distance between the center lines of the two crossbeams 32, such as... Figure 1As shown in the diagram, the two largest-spaced crossbeams 32 can be positioned at both ends of the crossbeam pallet 30 along the length X of the fork assembly 20, with the outer edges of the crossbeams 32 flush with the outer edges of the crossbeam pallet 30. Alternatively, the two largest-spaced crossbeams 32 can be positioned inwards from the edge of the crossbeam pallet 30 along the length X of the fork assembly 20 by a certain distance, such that L1 > L2, allowing the top plate 23 to contact both largest-spaced crossbeams 32. Since the length L1 > L2 of the top plate 23 of the fork assembly 20, after the forklift robot extends its forks, it moves the fork assembly 20 to a designated preset position and begins lifting, ensuring that the top plate 23 of the fork assembly 20 contacts both largest-spaced crossbeams 32 of the crossbeam pallet 30. This increases the contact area between the top plate 23 and the crossbeams 32, significantly reducing the risk of the crossbeam pallet 30 tilting or even overturning, and enabling the carrying of large-sized crossbeam pallets 30.

[0039] Since the top plate 23 can contact the two crossbeams 32 with the largest gap between them, that is, when there are three crossbeams 32 at the bottom of the crossbeam pallet 30, the top plate 23 can contact the three crossbeams 32. With more points of force, the crossbeam pallet 30 is less likely to tilt during carrying, which reduces the risk of goods on the crossbeam pallet 30 tipping over.

[0040] Meanwhile, due to the relatively long top plate 23 of the forklift assembly 20, it can carry not only oversized beam pallets 30 but also regular beam pallets 30. When carrying a regular beam pallet 30, the top plate 23 can contact all three beams 32 of the beam pallet 30, improving carrying stability. By extending the length of the top plate 23 of the forklift assembly 20, the stealth forklift robot can be used not only to carry larger beam pallets 30 but also to carry regular-sized beam pallets 30, expanding the application range of the stealth forklift robot.

[0041] Among them, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the crossbeam pallet 30 includes three legs 33, and a fork entry channel is formed between adjacent legs 33. In order to reduce the weight of the crossbeam pallet 30, the legs are provided with openings 331. The openings 331 on the three legs 33 are positioned opposite each other, and each leg 33 can be provided with two openings 331. The openings 331 can also be used as the fork entry port of a normal forklift (fork teeth off the ground).

[0042] The top plate 23 is at least partially located within the receiving groove 11, meaning that the top plate 23 can be entirely located within the receiving groove 11 or partially located within the receiving groove 11. When the top plate 23 is partially located within the receiving groove 11, the extra portion of the extended top plate 23 is located outside the receiving groove 11. By reasonably arranging the extra portion of the top plate 23, the size of the vehicle body 10 remains unchanged, the overall volume of the lurking forklift robot is reduced, and the carrying capacity of the lurking forklift robot is improved.

[0043] refer to Figure 7a , Figure 7b and Figure 7c As shown, Figure 7a This application provides a schematic diagram of a lurking forklift robot with its forks extended and positioned at a low level. Figure 7b This application provides a schematic diagram of a lurking forklift robot with its forks extended and positioned at a high level. Figure 7c This application provides a schematic diagram of a stealthy forklift robot extending its forks and carrying a pallet at a high position, as part of an embodiment of the present application. Figure 7a , Figure 7b ,and Figure 7c As shown, the base plate 21 is also provided with rollers, including a drive wheel 211 and a pair of driven wheels 212. The fork assembly 20 also includes a first motor 213 to drive the drive wheel 211 to rotate, thereby causing the fork assembly 20 to extend or retract.

[0044] refer to Figure 8 , Figure 8 This is a schematic diagram of the structure of the fork-leg assembly 20 provided in an embodiment of this application. The fork-leg assembly 20 includes a lifting mechanism 22, which drives the top plate 23 to move up and down relative to the bottom plate 21, so as to lift or lower the crossbeam tray 30 on the top plate 23. The lifting mechanism 22 can be a scissor-type lifting mechanism 22. Optionally, the lifting mechanism 22 includes a lead screw assembly 221 and a pair of hinged connecting rods 222. The lead screw assembly 221 includes a lead screw 2211 and a nut 2212 disposed on the lead screw 2211. The pair of connecting rods 222 are hinged together to form a scissor-shaped structure. The top ends of the pair of connecting rods 222 are hinged to the top plate 23, the bottom end of one connecting rod 222 is hinged to the bottom plate 21, and the bottom end of the other connecting rod 222 is hinged to the nut 2212.

[0045] The lifting mechanism 22 also includes a second motor 223, which drives the lead screw 2211 to rotate, thereby causing the nut 2212 to move along the lead screw 2211, thereby causing the top ends of a pair of connecting rods 222 to move closer to or further away from each other, so that the top plate 23 moves up and down relative to the bottom plate 21.

[0046] In some embodiments of this application, the length of the top plate 23 is greater than the length of the bottom plate 21. (See also...) Figure 5 , Figure 6a and Figure 6b The top plate 23 includes a main body 231 and an extension 232. The main body 231 is disposed opposite to the bottom plate 21, and the extension 232 is located on the side of the main body 231 away from the front end. Here, the front end refers to the end that extends first when the fork assembly 20 extends outward. The top of the vehicle body 10 is also provided with a mounting groove 12, which is connected to and arranged side by side with the receiving groove 11. The opening direction of the mounting groove 12 is the same as the opening direction of the receiving groove 11. The mounting groove 12 is located at the end of the receiving groove 11 away from the opening of the receiving groove 11. When the fork assembly 20 is in the retracted state, the bottom plate 21 is housed in the receiving groove 11, the main body 231 is housed in the receiving groove 11, and the extension 232 is housed in the mounting groove 12.

[0047] In this embodiment, only the top plate 23 is lengthened, the bottom plate 21 is housed in the receiving groove 11, the main body 231 is housed in the receiving groove 11, and the extension 232 is housed in the placement groove 12. The length of the top plate 23 does not exceed the length of the vehicle body 10. In this way, the overall size of the forklift remains unchanged, maintaining the original portability and flexibility of the forklift robot. Due to the increased length of the top plate 23, when carrying the crossbeam pallet 30, both the top plate 23 and the bottom crossbeam 32 can contact each other, improving carrying stability.

[0048] like Figure 6a , Figure 7a , Figure 7b and Figure 7c The extension portion 232 is thinned relative to the main body portion 231, meaning the extension portion 232 is thinner. This allows the mounting groove 12 to be made shallower, without significantly affecting the overall strength of the vehicle body 10.

[0049] In some embodiments of this application, the length of the bottom plate 21 is also greater than the distance L2 between the two crossbeams 32 with the largest spacing of the crossbeam tray 30, and the length of the top plate 23 is equal to the length of the bottom plate 21. When the fork assembly 20 is in the retracted state, both the top plate 23 and the bottom plate 21 are housed in the receiving groove 11.

[0050] In this embodiment, not only is the length of the top plate 23 increased, but the length of the bottom plate 21 is also increased simultaneously, thus improving the overall support strength of the fork assembly 20. With the top plate 23 and the bottom plate 21 being lengthened simultaneously, the overall length of the vehicle can be increased, allowing both the top plate 23 and the bottom plate 21 to be accommodated within the receiving slot 11.

[0051] In some embodiments, reference Figure 6b The width of beam 32 is H, L1=L2+H, or 1.01≤L1 / L2≤1.1.

[0052] The length of the top plate 23 is set to be equal to the length of the crossbeam tray 30, or the length of the top plate 23 is set to be 1.01 to 1.1 times the distance L2 between the two largest crossbeams 32. In this way, when the top plate 23 lifts the crossbeam tray 30, it can contact all three crossbeams 32 at the bottom of the crossbeam tray 30, thereby improving the stability during the carrying process.

[0053] Optionally, the length of the vehicle body 10 of the stealthy forklift robot is L1, where 0.7 < L1 / L3 < 0.9.

[0054] A value of 0.7 < L1 / L3 < 0.9 significantly increases the carrying capacity and safety of the stealth forklift robot, without altering the overall dimensions of the robot. For example, with a body length of 1.5m and a top plate length of 1.2m, it can carry a 1.5m long crossbeam pallet 30 while ensuring safe carrying.

[0055] In some embodiments of this application, reference is made to Figure 6b and Figure 9 , Figure 9 for Figure 6a The enlarged schematic diagram of section A shows that the base plate 21 and the vehicle body 10 are slidably connected via a secondary telescopic guide mechanism 40. The secondary telescopic guide mechanism 40, without changing the length of the lurking forklift robot, can extend the extension stroke of the fork assembly 20 and guide the extension position of the fork assembly 20, reducing the positional deviation of the fork assembly 20 and improving the success rate of carrying the crossbeam pallet 30.

[0056] Specifically, refer to Figure 9 The secondary telescopic guide mechanism 40 includes a first sliding member 41, a second sliding member (not shown in the figure), and an intermediate sliding member 42. The first sliding member 41 is respectively disposed on the two side walls of the receiving groove 11; the second sliding member is respectively disposed on both sides of the base plate 21 along its width direction Y, and the second sliding member is arranged in pairs with the first sliding member 41; the intermediate sliding member 42 connects one pair of first sliding members 41 and the other pair of second sliding members, and the intermediate sliding member 42 slides relative to the first sliding member 41, and the second sliding member slides relative to the intermediate sliding member 42. The width direction Y of the base plate 21 is also the width direction of the fork leg assembly 20, and the two directions are consistent.

[0057] The intermediate slider 42 serves to connect the first slider 41 and the second slider, and is slidably connected to the first slider 41 and the second slider, respectively. By setting the intermediate slider 42, the extension stroke of the fork assembly 20 can be extended without changing the length of the forklift robot, and it can also play a guiding role when the fork assembly 20 extends, reducing the positional deviation of the fork assembly 20 when it extends.

[0058] As a feasible solution, refer to Figure 9 The first sliding member 41 is a first sliding groove provided on both sides of the receiving groove 11; the middle sliding member 42 is provided with a first slider 421 on one side and a second sliding groove 422 on the other side, and the first slider 421 is slidably connected to the first sliding groove; the second sliding member is a second slider provided on both sides of the base plate 21 along its width direction Y, and the second slider is slidably connected to the corresponding second sliding groove 422 respectively.

[0059] The first slide groove can be a U-shaped aluminum profile, which is fixed to the two side walls of the receiving groove 11. The two ends of the U-shaped aluminum profile can be closed structures to limit the sliding range of the first slider 421. The two ends of the second slide groove 422 can also be closed structures to limit the sliding range of the second slider, thereby limiting the extreme positions of the extension or retraction of the fork assembly 20. Alternatively, a stop structure can be provided on the side wall of the receiving groove 11, and a stop-fitting structure can be provided on the first slider 421, the fork assembly 20, and the second slider. The stop structure and the stop-fitting structure abut against each other to limit the further extension and retraction of the fork assembly 20.

[0060] Of course, it is also possible for the first slider 41 to be the first slider 421 and the middle slider 42 to be the first groove that cooperates with the first slider 421. Similarly, it is also possible for the second slider to be the second groove 422 and the middle slider 42 to be the second slider that cooperates with the second groove 422. Alternatively, the first slider 41, the second slider and the middle slider 42 assembly can also be other sliding fit structures, as long as the sliding fit between the two can be achieved. This application does not limit this.

[0061] like Figure 9 As shown, the first sliders 421 of the two intermediate sliders 42 are connected by a connector 43. The connector 43 increases the strength of the secondary telescopic guide mechanism 40 and ensures smoother sliding of the fork leg assembly 20, avoiding inconsistent sliding speeds on both sides of the fork leg assembly 20.

[0062] In some embodiments of this application, reference is made to Figure 5 , Figure 10 and Figure 11 , Figure 10 This is a schematic diagram of the structure of the chassis 13 provided in an embodiment of this application. Figure 11This is a schematic diagram of the structure of the intermediate frame 133 provided in the embodiment of this application. The vehicle body 10 includes a chassis 13 and a platform 14 disposed on the chassis 13. The chassis 13 includes a left frame 131, a right frame 132 and an intermediate frame 133, including an intermediate frame 1331 and a through beam 1332 disposed at one end of the intermediate frame 1331. Two connecting brackets 1333 are provided on the side of the through beam 1332 facing the intermediate frame 1331. The connecting brackets 1333 are parallel to and spaced apart from the intermediate frame 1331. The two ends of the through beam 1332 are respectively connected to the top surfaces of the left frame 131 and the right frame 132. One connecting bracket 1333 is connected to the inner side of the left frame 131 and the other connecting bracket 1333 is connected to the inner side of the right frame 132.

[0063] In this embodiment, the through beam 1332 and the intermediate frame 133 can be an integral structure. The left frame 131 and the intermediate frame 133, and the right frame 132 and the intermediate frame 133 are connected not only by the connecting bracket 1333, but also by the through beam 1332. By increasing the number of connection points, the overall connection strength of the vehicle body 10 can be improved. Furthermore, the two connection points between the left frame 131 and the intermediate frame 133 form a triangular structure, and the two connection points between the right frame 132 and the intermediate frame 133 also form a triangular structure, which further improves the connection strength between the left frame 131 and the intermediate frame 133, and between the right frame 132 and the intermediate frame 133.

[0064] Optionally, refer to Figure 10 and Figure 11 The left frame 131, right frame 132 and middle frame 133 are sheet metal structures; the through beam 1332 is detachably connected to the left frame 131 and right frame 132 by screws; one connecting bracket 1333 is detachably connected to the inner side of the left frame 131 by screws; the other connecting bracket 1333 is detachably connected to the inner side of the right frame 132 by screws.

[0065] The sheet metal structure enhances the mechanical strength of the left frame 131, right frame 132, and intermediate frame 133, thereby improving the load-bearing capacity of the stealth forklift robot. The through beam 1332 is detachably connected to the right frame 132 using eight M8 screws, and the right frame 132 is detachably connected to the connecting bracket 1333 using ten M8 screws, further strengthening the connection between the intermediate frame 133 and the right frame 132. Similarly, the through beam 1332 is detachably connected to the left frame 131 using eight M8 screws, and the left frame 131 is detachably connected to the connecting bracket 1333 using ten M8 screws, further strengthening the connection between the intermediate frame 133 and the left frame 131.

[0066] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A latent fork truck robot, characterized by, include: The vehicle body (10) includes at least two receiving slots (11); At least two fork-leg assemblies (20) are at least partially located within the receiving groove (11) and are extendable or retractable relative to the vehicle body (10). The fork-leg assembly (20) includes a bottom plate (21) and a top plate (23) that are movably connected. When the fork-leg assembly (20) is in the retracted state, the top plate (23) is at least partially located within the receiving groove (11). The fork assembly (20) is used to pick up the beam pallet (30), which includes a pallet (31) and a plurality of beams (32) disposed at the bottom of the pallet (31). Along the length direction (X) of the fork assembly (20), the length of the top plate (23) is L1, and the distance between the two beams (32) with the largest spacing is L2, where L1 > L2, so that the top plate (23) is in contact with the two beams (32) with the largest spacing.

2. The stealthy forklift robot according to claim 1, characterized in that, The length of the top plate (23) is greater than the length of the bottom plate (21); The top plate (23) includes a body part (231) and an extension part (232). The body part (231) is disposed opposite to the bottom plate (21). The extension part (232) is located on the side of the body part (231) away from the front end, so that the length of the top plate (23) is greater than the length of the bottom plate (21) in the fork leg assembly (20). The top of the vehicle body (10) is also provided with a mounting groove (12), which is connected to the receiving groove (11) and arranged in parallel. The opening direction of the mounting groove (12) is the same as the opening direction of the receiving groove (11). When the fork assembly (20) is in the retracted state, the bottom plate (21) is stored in the receiving groove (11), the main body (231) is stored in the receiving groove (11), and the extension (232) is stored in the mounting groove (12).

3. The latent fork truck robot of claim 1, wherein, The length of the top plate (23) is equal to the length of the bottom plate (21). When the fork assembly (20) is in the retracted state, both the top plate (23) and the bottom plate (21) are housed in the receiving groove (11).

4. The stealthy forklift robot according to claim 1, characterized in that, The width of the crossbeam (32) is H; L1 = L2 + H, or 1.01 ≤ L1 / L2 ≤ 1.

1.

5. The latent fork truck robot of claim 1, wherein, The length of the vehicle body (10) of the lurking forklift robot is L3, 0.7 < L1 / L3 < 0.

9.

6. The latent fork truck robot according to any one of claims 1-5, wherein, The base plate (21) and the vehicle body (10) are slidably connected by a secondary telescopic guide mechanism (40).

7. The latent fork truck robot of claim 6, wherein, The secondary telescopic guide mechanism (40) includes: The first sliding member (41) is respectively disposed on the two side walls of the receiving groove (11); The second sliding member is respectively disposed on both sides of the base plate (21) along its width direction (Y), and the second sliding member is arranged in pairs with the first sliding member (41); An intermediate slider (42) connects one of the first sliders (41) and the second slider respectively. The intermediate slider (42) slides relative to the first slider (41), and the second slider slides relative to the intermediate slider (42).

8. The latent fork truck robot of claim 7, wherein, The first sliding member (41) is a first sliding groove provided on both sides of the receiving groove (11); The intermediate slider (42) has a first slider (421) on one side and a second groove (422) on the other side, and the first slider (421) is slidably connected to the first groove. The second slider is a second slider disposed on both sides of the base plate (21) along its width direction (Y), and the second slider is slidably connected to the corresponding second slide groove (422).

9. The latent fork truck robot of claim 8, wherein, The first sliders (421) of the two intermediate sliders (42) are connected by a connector (43).

10. The stealthy forklift robot according to any one of claims 1-5, characterized in that, The vehicle body (10) includes a chassis (13) and a platform (14) disposed on the chassis (13), the chassis (13) including: Left frame (131); Right frame (132); The intermediate frame (133) includes an intermediate frame body (1331) and a through beam (1332) disposed at one end of the intermediate frame body (1331). The through beam (1332) has two connecting brackets (1333) on one side facing the intermediate frame body (1331). The connecting brackets (1333) are parallel to and spaced apart from the intermediate frame body (1331). The two ends of the through beam (1332) are respectively connected to the top surfaces of the left frame (131) and the right frame (132). One of the connecting brackets (1333) is connected to the inner side of the left frame (131), and the other connecting bracket (1333) is connected to the inner side of the right frame (132).

Images