Distance adjusting fork and forklift

Abstract

The utility model provides a distance adjusting fork and a forklift, and relates to the technical field of industrial vehicles. The distance adjusting fork comprises a first sliding frame, at least two pallet forks and at least two roller assemblies, the first sliding frame extends in the first direction, each pallet fork is provided with a first installation part, the number of the roller assemblies is at least two, the first installation parts and the roller assemblies are connected in a one-to-one mode, and each roller assembly comprises a base and at least two bearing wheels. The at least two bearing wheels are rotatably connected with the base, a second mounting part is arranged on the base, the second mounting part is fixedly connected with the first mounting part, and the at least two bearing wheels are slidably connected with the first sliding frame in the first direction. According to the distance adjusting fork and the forklift, the distance adjusting fork and the forklift meet the structure, the number of the bearing wheels can be increased, the size of the first mounting part can be increased, stress concentration of the bearing wheels and the first mounting part is reduced, and the structural stability of the distance adjusting fork can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of industrial vehicles, and in particular to an adjustable fork and a forklift. Background Art

[0002] A forklift is a common handling tool for loading goods. When loading goods, the fork body at the front of the forklift is mainly used to support the loading of goods. Due to the different sizes and shapes of goods, in order to ensure the smooth loading of goods, the distance between the forks needs to be adjusted. The adjustable fork is one of the special accessories for forklift operations. The adjustable fork can adjust the distance between the two forks by hydraulic means, that is, separate and close together, which can greatly improve the efficiency of forklift use, reduce operating costs, and reduce the labor intensity of operators.

[0003] At present, the common adjustable fork comprises a fork frame and a fork, and a roller shaft is arranged on the fork, and the roller shaft is connected to the roller, that is, the fork is slidably connected to the fork frame through the roller. However, the number of rollers rolling along the upper surface of the fork frame is small, and the diameter of the shaft head of the roller is small. When carrying goods, the shaft head of the roller is subjected to concentrated stress, which is prone to failure and fracture. Utility Model Content

[0004] The purpose of the present application is to provide a fork lift and a forklift, which solve the problem of stress concentration on the roller shaft of the fork.

[0005] To achieve the purpose of this application, this application provides the following technical solutions:

[0006] In the first aspect, the present application provides a fork distance adjustment, comprising: a first slide extending in a first direction; at least two cargo forks, each of which is provided with a first mounting portion; a roller assembly, the number of which is at least two and connected one-to-one with the first mounting portion, the roller assembly comprising a base and at least two load-bearing wheels, the at least two load-bearing wheels are both rotatably connected to the base, the base is provided with a second mounting portion, the second mounting portion is fixedly connected to the first mounting portion, and the at least two load-bearing wheels slide on the first slide along the first direction. This is beneficial to increase the number of load-bearing wheels, increase the size of the first mounting portion, reduce stress concentration on the load-bearing wheels and the first mounting portion, and is beneficial to improve the structural stability of the fork distance adjustment.

[0007] In one embodiment, at least two of the load-bearing wheels are arranged along the first direction. During the movement of the at least two load-bearing wheels, the horizontal positions of the at least two load-bearing wheels remain unchanged, so that the horizontal position of the fork remains unchanged, which is conducive to the horizontal movement of the pallet or the goods.

[0008] In one embodiment, the first mounting portion includes a protrusion, and the second mounting portion includes a mounting groove, or the first mounting portion includes a mounting groove, and the second mounting portion includes a protrusion.

[0009] In one embodiment, the first mounting portion includes a protrusion, the protrusion protrudes from the fork along the direction from the fork to the first slide, and the second mounting portion includes a mounting groove, the recessed direction of the mounting groove is parallel to the protruding direction of the protrusion. The total length of the fork and the roller assembly in the first direction is reduced, so that when the length of the first slide along the first direction is constant, the fork is guaranteed to have a longer moving distance.

[0010] In one embodiment, the adjustable fork further includes a first connecting frame and a second connecting frame, the first connecting frame and the second connecting frame are respectively located at two ends of the first slide, and at least one cylinder seat is provided on the first connecting frame and the second connecting frame, and the cylinder seat is used to fix the cylinder. No additional reinforcement plate is required on the fork frame to place the cylinder, so that materials can be saved, counterweight can be reduced, and the load capacity of the forklift can also be improved. In addition, the cylinder is not blocked by the additional reinforcement plate, so that the field of view of the fork frame is wider, and the arrangement and maintenance of the cylinder and the piston rod are more convenient.

[0011] In one embodiment, the fork comprises a vertical portion and a horizontal portion, the horizontal portion is connected to one end of the vertical portion, the other end of the vertical portion is provided with the first mounting portion, the vertical portion further comprises a fixing plate, the adjustable fork further comprises at least two brackets, at least two of the brackets are fixedly connected to the fixing plate in a one-to-one manner, and the brackets are used to connect the oil cylinder. By installing and connecting the fixing plate and the bracket, the assembly process between the bracket and the fixing plate can be flexibly adjusted, that is, the oil cylinder and the fork are assembled and connected, which is conducive to setting the piston rod of the adjusting oil cylinder along the first direction, and ensuring the stability of the fork relative to the first slide.

[0012] In one embodiment, the bracket is provided with a plurality of connection holes, the connection holes are spaced apart, the connection holes are waist-shaped, and the connection holes are used to be fixedly connected to the fixing plate. The assembly between the bracket and the fixing plate can be flexibly adjusted, thereby making the assembly of the oil cylinder flexibly adjustable, which is conducive to ensuring that the oil cylinder is level with the first direction after assembly.

[0013] In one embodiment, the distance adjusting fork further comprises at least two oil cylinders, a single oil cylinder is connected between a single oil cylinder seat and a single fixed plate, and the oil cylinder is used to drive the fork to move along the first direction. Under the telescopic action of the oil cylinder piston rod, the piston rod can directly drive the fork to move along the first direction, thereby achieving the adjustment of the distance between at least two forks.

[0014] In one embodiment, the adjustable fork further includes a reinforcing plate, the reinforcing plate is located between the first connecting frame and the second connecting frame, the reinforcing plate is connected to the first slide, and the thickness direction of the reinforcing plate is parallel to the first direction. The fork frame has a wider field of view, reduces the counterweight of the fork frame, and is conducive to increasing the layout space of the cylinder pipeline, making the installation and maintenance of the cylinder more convenient.

[0015] In one embodiment, the adjustable fork further includes a second slide, the second slide extends along the first direction, the second slide is spaced apart from the first slide, and the fork further includes a hook, the hook is located on the side where the fork contacts the second slide, and the hook is engaged with the second slide. The distance between the fork and the fork frame perpendicular to the first direction is kept small to prevent the fork and the fork frame from detaching.

[0016] In a second aspect, the present application further provides a forklift, comprising a vehicle body and a fork positioner as described in any one of the above embodiments, wherein the fork positioner is mounted on the vehicle body.

[0017] The adjustable fork provided in the present application comprises a first slide, at least two forks and a roller assembly, wherein the first slide extends along a first direction, so that the at least two forks can move along the first direction, and the spacing distance between the at least two forks in the first direction can be adjusted. A first mounting portion is provided on each fork, and the number of roller assemblies is at least two, and the first mounting portion and the roller assembly are connected one-to-one, thereby realizing a sliding connection between the fork and the first slide.

[0018] By making the roller assembly include a base and at least two load-bearing wheels, at least two load-bearing wheels are rotatably connected to the base, so that the number of load-bearing wheels is large, so that the load-bearing force on multiple load-bearing wheels can be evenly distributed, which greatly reduces the stress concentration of the load-bearing wheels and is conducive to improving the cargo carrying capacity of the fork. A second mounting portion is provided on the base, and the second mounting portion is fixedly connected to the first mounting portion. At least two load-bearing wheels are slidably connected to the first slide along the first direction, so that the gravity of the fork itself and the gravity of the pallet or cargo transported by the fork can be evenly distributed on the multiple load-bearing wheels. At the same time, since the roller assembly is connected to the first mounting portion through the base, the size of the first mounting portion can be larger, which is conducive to improving the load-bearing capacity of the first mounting portion, reducing the stress concentration of the first mounting portion, preventing the first mounting portion from failing and breaking, and is conducive to improving the structural stability of the adjustable fork. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic structural diagram of a distance-adjusting fork according to an implementation mode;

[0021] Figure 2 is a front view of a fork carriage according to an embodiment;

[0022] Figure 3 is an exploded view of a fork and roller assembly in one embodiment;

[0023] Figure 4 is a schematic structural diagram of a fork and roller assembly according to an embodiment;

[0024] Figure 5 is an exploded view of a fork and roller assembly of a second embodiment;

[0025] Figure 6 It is an exploded view of the fork and roller assembly of the third embodiment.

[0026] Description of reference numerals:

[0027] 10-fork frame, 11-first slide, 12-second slide, 13-first connecting frame, 131-cylinder seat, 14-second connecting frame, 15-reinforcement plate;

[0028] 20-fork, 21-vertical part, 211-first mounting part, 212-fixing plate, 213-hook, 214-first roller, 215-second roller, 22-horizontal part;

[0029] 30-roller assembly, 31-base, 311-second mounting portion, 32-load bearing wheel;

[0030] 40-oil cylinder, 50-bracket, 51-connecting hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this application includes any and all combinations of one or more of the related listed items.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0037] The present application embodiment provides a distance adjusting fork, see Figure 1 , Figure 2 and Figure 3The adjustable fork comprises a first carriage 11 and at least two forks 20. The first carriage 11 extends in a first direction. The at least two forks 20 are slidably connected to the first carriage 11 in the first direction, so that the at least two forks 20 can move in the first direction, thereby adjusting the spacing distance between the at least two forks 20 in the first direction. On the one hand, the forks 20 can be driven to move in the first direction to ensure that the forks 20 can move to the required accurate position and drive the goods to move in the first direction. On the other hand, the spacing between the at least two forks 20 can be adjusted so that the adjustable fork can be suitable for pallets or goods of different widths. The first direction is parallel to Figure 1 The X direction in .

[0038] Each fork 20 is provided with a first mounting portion 211, and the first mounting portion 211 is used to connect with the load-bearing wheel 32, so that the load-bearing wheel 32 and the first slide 11 are slidably connected, thereby making the fork 20 slidably connected to the first slide 11, and the load-bearing wheel 32 provides load capacity for the fork 20, and the gravity of the fork 20 itself and the gravity of the pallet or cargo transported by the fork 20 are transmitted to the first slide 11 through the load-bearing wheel 32.

[0039] The number of the first mounting portions 211 on a single fork 20 may be at least two, and the at least two first mounting portions 211 are arranged at intervals, which is conducive to providing space for arranging the load-bearing wheels 32 on the first mounting portions 211 .

[0040] The adjustable fork further includes a roller assembly 30, the number of which is at least two, and the roller assembly 30 is connected one-to-one with the first mounting portion 211. The roller assembly 30 includes a base 31 and at least two load-bearing wheels 32, and at least two load-bearing wheels 32 are rotatably connected to the base 31, that is, the number of load-bearing wheels 32 is large, so that the load-bearing force on the multiple load-bearing wheels 32 can be evenly distributed, which greatly reduces the stress concentration of the load-bearing wheels 32, and is conducive to improving the cargo carrying capacity of the fork 20.

[0041] The number of the roller assemblies 30 can be multiple, so that a single roller assembly 30 can be connected to a single first mounting portion 211 on each fork 20 .

[0042] The base 31 is provided with a second mounting portion 311, which is fixedly connected to the first mounting portion 211, and at least two load-bearing wheels 32 are slidably connected to the first slide 11 along the first direction, so that the fork 20 is slidably connected to the first slide 11 through the roller assembly 30, so that the gravity of the fork 20 itself and the gravity of the pallet or goods transported by the fork 20 can be evenly distributed on the multiple load-bearing wheels 32. At the same time, since the roller assembly 30 is connected to the first mounting portion 211 through the base 31, the size of the first mounting portion 211 can be larger, which is conducive to improving the load-bearing capacity of the first mounting portion 211, reducing the stress concentration of the first mounting portion 211, preventing the first mounting portion 211 from failing and breaking, and is conducive to improving the structural stability of the adjustable fork.

[0043] The adjustable fork provided in the present application comprises a first carriage 11, at least two forks 20 and a roller assembly 30. The first carriage 11 extends along a first direction, so that the at least two forks 20 can move along the first direction, and the spacing distance of the at least two forks 20 in the first direction can be adjusted. A first mounting portion 211 is provided on each fork 20, and the number of roller assemblies 30 is at least two. The first mounting portion 211 and the roller assembly 30 are connected one-to-one, so as to realize the sliding connection between the fork 20 and the first carriage 11.

[0044] By making the roller assembly 30 include a base 31 and at least two load-bearing wheels 32, at least two load-bearing wheels 32 are rotatably connected to the base 31, so that the number of load-bearing wheels 32 is large, so that the load-bearing force on the multiple load-bearing wheels 32 can be evenly distributed, which greatly reduces the stress concentration of the load-bearing wheels 32, and is conducive to improving the cargo carrying capacity of the fork 20. A second mounting portion 311 is provided on the base 31, and the second mounting portion 311 is fixedly connected to the first mounting portion 211. At least two load-bearing wheels 32 are slidably connected to the first slide 11 along the first direction, so that the gravity of the fork 20 itself and the gravity of the pallet or cargo transported by the fork 20 can be evenly distributed on the multiple load-bearing wheels 32. At the same time, since the roller assembly 30 is connected to the first mounting portion 211 through the base 31, the size of the first mounting portion 211 can be large, which is conducive to improving the load-bearing capacity of the first mounting portion 211, reducing the stress concentration of the first mounting portion 211, preventing the first mounting portion 211 from failing and breaking, and is conducive to improving the structural stability of the adjustable fork.

[0045] In one implementation, see Figure 3 At least two load-bearing wheels 32 are arranged along the first direction, so that the arrangement direction of the at least two load-bearing wheels 32 coincides with the movement direction of the at least two load-bearing wheels 32, so that when the at least two load-bearing wheels 32 move, the horizontal position of the at least two load-bearing wheels 32 remains unchanged, thereby making the horizontal position of the fork 20 remain unchanged, which is conducive to the horizontal movement of the pallet or goods.

[0046] At least two load-bearing wheels 32 may be spaced apart or in contact with each other; the diameters of at least two load-bearing wheels 32 may be the same or different; the edges of at least two load-bearing wheels 32 in contact with the first slide 11 may be arranged along the first direction; this application does not impose any restrictions on this.

[0047] Optionally, the first mounting portion 211 includes a protrusion, and the second mounting portion 311 includes a mounting groove, or the first mounting portion 211 includes a mounting groove, and the second mounting portion 311 includes a protrusion.

[0048] When the first mounting portion 211 is a protrusion and the second mounting portion 311 is a mounting groove, please refer to Figure 5 The first mounting portion 211 can be arranged on both sides of the fork 20 in the first direction, the protruding direction of the first mounting portion 211 is parallel to the first direction, or inclined to the first direction, the base 31 has a certain thickness along the protruding direction of the first mounting portion 211, and the recessed direction of the second mounting portion 311 is parallel to the protruding direction of the first mounting portion 211, so that the second mounting portion 311 is connected to the first mounting portion 211.

[0049] When the first mounting portion 211 is a mounting groove and the second mounting portion 311 is a protrusion, similarly, refer to Figure 6 The first mounting portion 211 can be arranged on both sides of the fork 20 in the first direction, the recessed direction of the first mounting portion 211 is parallel to the first direction, or inclined thereto, and the second mounting portion 311 protrudes from the base 31 along the recessed direction of the first mounting portion 211 so that the second mounting portion 311 is connected to the first mounting portion 211.

[0050] Optional, see Figure 3 and Figure 4 , the first mounting portion 211 includes a protrusion, which protrudes from the fork 20 along the direction from the fork 20 to the first slide 11, and the second mounting portion 311 includes a mounting groove, and the recessed direction of the mounting groove is parallel to the protruding direction of the protrusion. That is, the first mounting portion 211 is arranged on the surface of the fork 20 facing the first slide 11, so that in the first direction, the lengths of the roller assembly 30 and the fork 20 at least partially overlap, which is conducive to reducing the total length of the fork 20 and the roller assembly 30 in the first direction. Compared with the first mounting portion 211 being arranged on both sides of the fork 20 in the first direction, the total length of the fork 20 and the roller assembly 30 in the first direction is reduced, so that when the length of the first slide 11 in the first direction is constant, it is ensured that the fork 20 has a longer moving distance.

[0051] In one implementation, see Figure 1 and Figure 2The adjustable fork also includes a first connecting frame 13 and a second connecting frame 14, which are respectively located at two ends of the first slide 11, and at least one cylinder seat 131 is provided on each of the first connecting frame 13 and the second connecting frame 14, and the cylinder seat 131 is used to fix the cylinder 40, so that at least one cylinder 40 can be connected to each of the first connecting frame 13 and the second connecting frame 14, and the fork 20 is driven to move along the first direction by the cylinder 40. The cylinder seat 131 can be connected to the first connecting frame 13 and the second connecting frame 14 by welding.

[0052] The first slide 11, the first connecting frame 13 and the second connecting frame 14 together form the fork frame 10. By fixing the cylinder seat 131 on the fork frame 10, the cylinder seat 131 can be connected to the cylinder 40, so that there is no need to add an additional reinforcement plate 15 on the fork frame 10 to place the cylinder 40, thereby saving materials, reducing counterweight, and also improving the load capacity of the forklift. In addition, the cylinder 40 is not blocked by the additional reinforcement plate 15, so that the field of view of the fork frame 10 is wider, and the arrangement and maintenance of the cylinder 40 and the piston rod are more convenient.

[0053] In one implementation, see Figure 3 and Figure 4 The fork 20 includes a vertical portion 21 and a horizontal portion 22, the horizontal portion 22 is connected to one end of the vertical portion 21, and a first mounting portion 211 is provided on the other end of the vertical portion 21, so that the fork 20 is an L-shaped structure composed of the horizontal portion 22 and the vertical portion 21, wherein the vertical portion 21 is used for sliding connection with the first slide 11, and the horizontal portion 22 is used for supporting a pallet or cargo.

[0054] The vertical portion 21 further includes a fixed plate 212, and the adjustable fork further includes at least two brackets 50, at least two brackets 50 are fixedly connected to the fixed plate 212 in a one-to-one manner, and the brackets 50 are used to connect the oil cylinder 40. By installing and connecting the fixed plate 212 and the brackets 50, the assembly process between the brackets 50 and the fixed plate 212 can be flexibly adjusted, that is, the oil cylinder 40 and the fork 20 are assembled and connected, which is conducive to realizing that the piston rod of the oil cylinder 40 is arranged along the first direction, and the stability of the movement of the fork 20 relative to the first slide 11 is ensured.

[0055] Optionally, the bracket 50 is provided with a plurality of connection holes 51, which are arranged at intervals and are in the shape of a waist. The connection holes 51 are used to be fixedly connected to the fixing plate 212, so that when the bracket 50 and the fixing plate 212 are connected through the connection holes 51, they can be adjusted in the waist direction of the connection holes 51, so that the assembly between the bracket 50 and the fixing plate 212 can be flexibly adjusted, and thus the assembly of the oil cylinder 40 can be flexibly adjusted, which is conducive to ensuring that the oil cylinder 40 is horizontal with the first direction after assembly. The connection hole 51 can be a threaded hole, and the connection hole 51 and the fixing plate 212 can be threadedly connected by a bolt. By adjusting the position of the bolt in the waist-shaped connection hole 51, the position of the bracket 50 assembled on the fork 20 is adjusted, and the horizontality between the bracket 50 and the fixing plate 212 is adjusted, so as to ensure that the piston rod of the oil cylinder 40 is horizontal with the first direction when connected to the bracket 50.

[0056] Optional, see Figure 1 The distance adjusting fork also includes at least two oil cylinders 40, and the oil cylinders 40 and the forks 20 are arranged one to one. The single oil cylinder 40 is connected between the single oil cylinder seat 131 and the single fixed plate 212, and the oil cylinder 40 is used to drive the forks 20 to move along the first direction. The piston rod of the oil cylinder 40 is arranged parallel to the first direction, and one end of the piston rod of the single oil cylinder 40 is connected to the fork frame 10, and the other end is connected to the single fork 20. Under the telescopic action of the piston rod of the oil cylinder 40, the piston rod can directly drive the forks 20 to move along the first direction, thereby realizing the adjustment of the distance between at least two forks 20.

[0057] In one implementation, see Figure 2 The adjustable fork also includes a reinforcing plate 15, which is located between the first connecting frame 13 and the second connecting frame 14. The reinforcing plate 15 is connected to the first slide frame 11, and the thickness direction of the reinforcing plate 15 is parallel to the first direction, so that the reinforcing plate 15 can enhance the strength of the fork frame 10 and improve the carrying capacity of the fork frame 10.

[0058] The reinforcing plate 15 is also a part of the fork frame 10. Compared with arranging the reinforcing plate 15 in a large area on the frame plane parallel to the fork frame 10, making the thickness direction of the reinforcing plate 15 parallel to the first direction is beneficial to making the field of view of the fork frame 10 wider, reducing the counterweight of the fork frame 10, and increasing the layout space of the cylinder 40 pipeline, making the installation and maintenance of the cylinder 40 more convenient.

[0059] Optionally, the reinforcing plate 15 is welded to the middle position of the first slide 11 along the first direction, and the fork frame 10 further includes a second slide 12, the second slide 12 and the first slide 11 are arranged at intervals, and the two ends of the second slide 12 are respectively connected to the first connecting frame 13 and the second connecting frame 14, and the first slide 11, the second slide 12, the first connecting frame 13 and the second connecting frame 14 together form the outer frame of the fork frame 10. The reinforcing plate 15 is welded to both the first slide 11 and the second slide 12, so that the reinforcing plate 15 can support the outer frame of the fork frame 10 and improve the carrying capacity of the fork frame 10.

[0060] In one implementation, see Figure 1 , Figure 3 and Figure 4 The adjustable fork further includes a second slide 12, which extends along the first direction, and the second slide 12 and the first slide 11 are spaced apart. The fork 20 further includes a hook 213, and the hook 213 is located on the side where the fork 20 contacts the second slide 12, and the hook 213 and the second slide 12 are engaged. The second slide 12 is a part of the fork frame 10, so that the vertical portion 21 fits with the fork frame 10, which is beneficial to keep the distance between the fork 20 and the fork frame 10 perpendicular to the first direction small, and avoid the fork 20 and the fork frame 10 from being separated.

[0061] Optionally, the fork 20 includes a vertical portion 21 and a horizontal portion 22 , and the hook 213 may be disposed on the vertical portion 21 .

[0062] Optionally, the vertical portion 21 also includes a first roller 214 and a second roller 215, the axes of the first roller 214 and the second roller 215 are both perpendicular to the first direction, the first roller 214 rolls along the surface of the first slide 11, and the second roller 215 rolls along the surface of the second slide 12, so that the vertical portion 21 and the fork frame 10 are both slidingly connected, which is beneficial to reducing the friction between the fork 20 and the fork frame 10, thereby facilitating the relative movement of the fork 20 and the fork frame 10 along the first direction, thereby saving the driving force required for the movement of the fork 20, which is beneficial to reducing costs.

[0063] Optionally, the number of the first rollers 214 is at least two, and the first rollers 214 can be arranged on both sides of the vertical portion 21 in the first direction, or on the surface of the vertical portion 21 facing the first slide 11, and the present application does not limit this. The first roller 214 can be slidably connected to a surface of the first slide 11 close to the second slide 12, so that the first roller 214 and the load-bearing wheel 32 are respectively slidably connected to different surfaces of the first slide 11, which is conducive to increasing the contact area of ​​the sliding connection between the fork 20 and the first slide 11, and at the same time, avoiding interference between the first roller 214 and the load-bearing wheel 32.

[0064] Optionally, the number of the second rollers 215 is at least two, and the second rollers 215 can be arranged on both sides of the vertical portion 21 in the first direction, or on the surface of the vertical portion 21 facing the first slide 11, which is not limited in the present application. When the second rollers 215 are arranged on both sides of the vertical portion 21 in the first direction, the second rollers 215 can be slidably connected with the surface of the second slide 12 facing the vertical portion 21; when the second rollers 215 are arranged on the surface of the vertical portion 21 facing the first slide 11, the second rollers 215 can be slidably connected with the surface of the second slide 12 close to or away from the first slide 11; so that the distance between the vertical portion 21 and the second slide 12 is small, which is conducive to the hook 213 on the vertical portion 21 and the second slide 12 being engaged.

[0065] The present application also provides a forklift, comprising a vehicle body and a fork positioner according to any one of the embodiments of the first aspect, wherein the fork positioner is mounted on the vehicle body.

[0066] It can be understood that the forklift in this embodiment has the adjustable fork in the above-mentioned embodiment. Therefore, the forklift in this embodiment has all the technical effects of the adjustable fork in the above-mentioned embodiment. Since the technical effects of the adjustable fork have been fully explained in the above-mentioned embodiment, they will not be repeated here.

[0067] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0068] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A fork distance adjustment device, characterized in that: include: A first slide extending along a first direction; At least two forks, each of the forks is provided with a first mounting portion; A roller assembly, wherein the number of the roller assemblies is at least two and they are connected one-to-one with the first mounting portion, the roller assembly comprises a base and at least two load-bearing wheels, the at least two load-bearing wheels are both rotatably connected with the base, a second mounting portion is provided on the base, the second mounting portion is fixedly connected with the first mounting portion, and the at least two load-bearing wheels both slide on the first slide along the first direction.

2. The fork distance adjustment according to claim 1, characterized in that: At least two of the load-bearing wheels are arranged along the first direction.

3. The fork distance adjustment according to claim 1, characterized in that: The first mounting portion includes a protrusion, and the second mounting portion includes a mounting groove, or the first mounting portion includes a mounting groove, and the second mounting portion includes a protrusion.

4. The fork distance adjustment according to claim 3, characterized in that: The first mounting portion includes a protrusion, which protrudes from the fork along a direction from the fork to the first sliding bracket, and the second mounting portion includes a mounting groove, and a recessed direction of the mounting groove is parallel to a protruding direction of the protrusion.

5. The fork distance adjustment according to any one of claims 1 to 4, characterized in that: The distance adjusting fork also includes a first connecting frame and a second connecting frame, wherein the first connecting frame and the second connecting frame are respectively located at two ends of the first slide frame, and at least one cylinder seat is disposed on each of the first connecting frame and the second connecting frame, and the cylinder seat is used to fix the cylinder.

6. The fork positioner according to claim 5, characterized in that: The cargo fork includes a vertical portion and a horizontal portion, the horizontal portion is connected to one end of the vertical portion, the other end of the vertical portion is provided with the first mounting portion, the vertical portion also includes a fixing plate, the adjustable fork also includes at least two brackets, at least two of the brackets are fixedly connected to the fixing plate one-to-one, and the brackets are used to connect the oil cylinder.

7. The fork distance adjustment according to claim 6, characterized in that: The bracket is provided with a plurality of connection holes, the connection holes are distributed at intervals, the shape of the connection holes is waist-shaped, and the connection holes are used for fixed connection with the fixing plate.

8. The fork distance adjustment according to claim 6, characterized in that: The adjustable fork also includes at least two oil cylinders, a single oil cylinder is connected between a single oil cylinder seat and a single fixed plate, and the oil cylinder is used to drive the fork to move along the first direction.

9. The fork distance adjustment according to claim 5, characterized in that: The distance adjusting fork further includes a reinforcing plate, the reinforcing plate is located between the first connecting frame and the second connecting frame, the reinforcing plate is connected to the first sliding frame, and the thickness direction of the reinforcing plate is parallel to the first direction.

10. The fork distance adjustment according to any one of claims 1 to 4, characterized in that: The distance adjusting fork also includes a second slide, which extends along the first direction, and the second slide is spaced apart from the first slide. The fork also includes a hook, which is located on the side where the fork contacts the second slide, and the hook is engaged with the second slide.

11. A forklift, characterized in that: The utility model comprises a vehicle body and a distance adjusting fork as claimed in any one of claims 1 to 10, wherein the distance adjusting fork is mounted on the vehicle body.

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