A material handling vehicle with adjustable spacing structure

Abstract

The present invention relates to the technical field of AGV material handling vehicles, and in particular to a material handling vehicle provided with an adjustable spacing structure, comprising a handling vehicle and an enclosure, wherein the lower outer edge of the rear end of the handling vehicle is fixedly connected to the end of the inner wall of the enclosure, a lifting assembly is installed at the front end of the handling vehicle, an adjustment assembly is installed at the upper part of the movable crossbeam in the lifting assembly, a material storage assembly is distributed at the front end center of the lifting platform in the lifting assembly, and indicator lights are installed on both sides of the upper end of the handling vehicle. Through the coordination between the driving cylinder, the frame, the inclined rod one, the inclined rod two, the material storage platform and the adjustment base plate, when in use, it is only necessary to control the telescopic state of the output shaft of the driving cylinder to control the spacing adjustment between the multi-layer material storage platforms, effectively avoiding the problem that the existing fixed bracket cannot be adjusted according to the size of the material being transported, and is prone to the problem that the spacing is too high, resulting in space waste, or the spacing is too low, resulting in the inability to store materials.

Description

Technical Field

[0001] The invention relates to the technical field of AGV material handling vehicles, in particular to a material handling vehicle provided with an adjustable spacing structure. Background Art

[0002] AGV is the abbreviation of automatic transport vehicle, which is an important part of intelligent logistics. It can realize the automated transportation, automatic sorting, transportation and storage of goods. The AGV cart can carry 1.5 tons of goods, which improves work efficiency and reduces the risk factor of manual handling. As a kind of automatic transport vehicle, the forklift truck has a liftable fork beam on the front side of the truck to facilitate the removal of goods.

[0003] However, in the prior art, the material handling vehicle with fixed brackets cannot be adjusted according to the size of the material being transported during the material retrieval process because the spacing between each layer of the bracket is fixed. This easily leads to the problem of space waste due to the spacing being too high or the material being unable to be stored due to the spacing being too low.

[0004] At the same time, the fixed bracket structure of the prior art, during the process of storing or taking materials, because its frame structure used for protection is also fixedly connected, and thus cannot change according to the height change of the stored materials, it is easy for the frame to be too low and poorly protected during transportation of materials, or the frame to be too high, making it inconvenient to take the materials.

[0005] Furthermore, if the prior art adopts a simple lifting structure to control the relative position between the adjustment frame and the material storage platform, it is necessary to control the power source to reverse so that the frame and the material storage platform can be reset. However, since the adjustment process usually needs to be precise and stable, such a reset takes a long time, while the reset needs to be fast and efficient. However, by controlling the power source to reverse, the adjustment process and the reset process are made to have the same efficiency, resulting in a slower and less efficient reset process. Summary of the invention

[0006] The purpose of the present invention is to solve the problems that the existing fixed brackets cannot be adjusted according to the size of the transported materials, and the spacing is prone to be too high, resulting in space waste or too low, resulting in the inability to store materials, and the frame structure cannot be changed according to the height of the stored materials. During the transportation of materials, the frame is prone to be too low and the protection is poor or the frame is too high, resulting in inconvenience in taking the materials, and if the power source is reversed in a way that makes the adjustment process and the reset process have the same efficiency, the reset process will be slower and less efficient. A material handling vehicle with an adjustable spacing structure is proposed.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A material handling vehicle with an adjustable spacing structure is designed, comprising a handling vehicle and an enclosure, wherein the lower outer edge of the rear end of the handling vehicle is fixedly connected to the end of the inner wall of the enclosure, a lifting assembly is installed at the front end of the handling vehicle, an adjustment assembly is installed at the upper part of the movable crossbeam in the lifting assembly, a material storage assembly is distributed at the front end center of the lifting platform in the lifting assembly, and indicator lights are installed on both sides of the upper end of the handling vehicle.

[0009] Preferably, the adjustment assembly includes a driving cylinder, a shaft sleeve, a first diagonal rod, a cylinder bracket, a second diagonal rod, an adjustment base plate, a bottom frame, a roller, a second sliding rod, a fixed bracket and a sliding bracket;

[0010] The cam is provided with a plurality of guide wheels, and the guide wheels are connected with a plurality of guide wheels at the bottom ends of the guide wheels, and the guide wheels are connected with a plurality of guide wheels at the bottom ends of the guide wheels.

[0011] Preferably, the front and rear adjustment base plates, the oblique rod 1 and the oblique rod 2 are distributed in mirror symmetry, the oblique rod 1 and the oblique rod 2 have consistent structural dimensions, and the fixed bracket and the sliding bracket have consistent structural dimensions.

[0012] Preferably, the lifting assembly includes a gusset plate, a movable crossbeam, a main frame, a slideway, a threaded rod and a lifting platform;

[0013] The main frame is fixedly connected to the front end of the main body of the transport vehicle, and slideways are fixedly connected to both sides of the inner wall of the main frame. The inner walls of the slideways are slidably connected to the lifting platform. The inner walls of both sides of the rear part of the main frame are rotatably connected to threaded rods, and the lower part of the outer wall of the threaded rod is threadedly connected to the lifting platform. The end of the threaded rod is connected to the internal power source of the transport vehicle through a transmission structure, and movable crossbeams are fixedly connected to both sides of the front end of the lifting platform, and gusset plates are fitted on the front and rear sides of the movable crossbeam.

[0014] Preferably, the upper ends of the gusset plates are fixedly connected to the bottom frame, and fixed cross beams are fixedly connected to both sides below the front end of the main frame.

[0015] Preferably, the lower ends of the transport vehicle and the fixed crossbeam are both equipped with traveling wheels.

[0016] Preferably, the material storage assembly includes a frame, a drive motor, a friction disc, a slide bar, a material storage platform, a spring, a motor bracket, a lifting cylinder, an arc groove roller and a round rod;

[0017] The plurality of frames are all located directly above the corresponding material storage platforms, the upper end center of the protruding part of the frame is fixedly connected with a lifting cylinder, the end of the output shaft of the lifting cylinder is fixedly connected with a motor bracket, the outer side of the upper end of the motor bracket is fixedly connected with a driving motor, the inner wall of the protruding part of the frame is rotatably connected with an arc groove roller, the ends of the arc groove roller and the output shaft of the driving motor are fixedly connected with friction disks, and the friction disks on the upper and lower sides are tightly abutted against each other, round rods are fitted on both sides of the outer wall groove of the arc groove roller, the outer end of the round rod is fixedly connected to the inner wall of the notch of the material storage platform, and sliding rods are fixedly connected to both sides of the protruding part of the material storage platform, the sliding rods are penetrated and slidably connected with the frame, a spring is arranged above the outer wall of the sliding rod, and the two sides of the spring are respectively fixedly connected to the frame and the end baffle of the sliding rod.

[0018] Preferably, the front and rear ends of the protruding parts of the plurality of frames are fixedly connected to the outer wall of the adjustment base plate via a connecting beam.

[0019] The material handling vehicle provided with an adjustable spacing structure proposed by the present invention has the following beneficial effects:

[0020] By driving the cylinder, the frame, the first diagonal rod, the second diagonal rod, the material storage platform and the adjusting base plate, the output shaft of the driving cylinder is controlled to retract, and the second diagonal rod starts to rotate and drives the first diagonal rod to rotate, thereby driving the diagonal rod structure of each layer to rotate synchronously, so as to achieve synchronous spacing adjustment of multiple adjusting base plates, frames and material storage platforms, so that the spacing between multiple material storage platforms is expanded. Then, the user can place the materials to be transported on the upper part of the material storage platform for storage, and finally control the equipment to move to the position where the materials need to be transported to realize the material transportation process. Through the above-mentioned cooperation, when in use, it is only necessary to control the extension and retraction state of the output shaft of the driving cylinder to control the spacing adjustment between the multiple material storage platforms, which effectively avoids the problem that the existing fixed bracket cannot be adjusted according to the size of the transported material, and is prone to the problem that the spacing is too high, resulting in space waste, or the spacing is too low, resulting in the inability to store materials.

[0021] Through the cooperation among the driving motor, the arc groove roller, the round rod, the material storage platform and the frame, when storing materials at a higher height, the driving motor can be controlled to start, so that it drives the arc groove roller to rotate. Due to the cooperation between the arc groove on the inner wall of the arc groove roller and the round rod, the round rod and the material storage platform are driven to move downward. At this time, the material is embedded through the frame and is located on the surface of the material storage platform, so that the frame is blocked at the originally higher position of the outer wall of the material. On the contrary, when storing materials at a lower height, the driving motor can be controlled to reverse. By controlling the forward and reverse rotation of the driving motor, the relative position between the frame and the material storage platform can be adjusted, so as to adapt to the protection of storage materials of different heights and sizes, and effectively avoid the problem that the frame structure in the prior art cannot be changed according to the height change of the stored material, and the material is easily inconvenient to take due to the frame being too low and poorly protected or the frame being too high during transportation;

[0022] Through the coordination among the material storage platform, friction disc, drive motor, motor bracket, spring and round rod, after the stored material is taken out from the material storage platform, the user can control the lifting cylinder so that the output shaft of the lifting cylinder drives the drive motor and the friction disc above to move upward through the motor bracket. At this time, the two originally pressed friction discs are no longer in contact, and during the position adjustment of the material storage platform, the state of the spring changes accordingly, and it is either in a pressed state or in a stretched state. During the resetting process, the up and down positions of the round rod change, and then the arc groove roller can be driven to rotate and reset. In this case, the lifting cylinder is controlled to release the pressed state of the friction disc, and then the use of the spring is combined, so that after the restriction is released, the spring can quickly control the storage platform to reset, effectively avoiding the problem that if the power source is reversed, the adjustment process and the reset process are made to have the same efficiency, resulting in a slow and inefficient reset process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the front appearance structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the left side appearance structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the local structure of the transport vehicle in the present invention;

[0026] Figure 4 It is a structural schematic diagram of the material storage component and the regulating component in the present invention;

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the structure in the upward-looking state;

[0028] Figure 6 It is a schematic diagram of the local structure of a single regulating component in the present invention;

[0029] Figure 7 For the present invention Figure 6 Schematic diagram of the structure in the upward-looking state;

[0030] Figure 8 It is a schematic diagram of the local structure of the single-layer material storage component in the present invention;

[0031] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure in the upward-looking state;

[0032] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure at position I in FIG.

[0033] In the figure: 1, transport vehicle, 2, fixed beam, 3, lifting assembly, 301, gusset plate, 302, movable beam, 303, main frame, 304, slideway, 305, threaded rod, 306, lifting platform, 4, storage assembly, 401, frame, 402, drive motor, 403, friction plate, 404, slide bar 1, 405, storage platform, 406, spring, 407, motor bracket, 408, lifting Lowering cylinder, 409, arc groove roller, 410, round rod, 5, adjustment assembly, 501, driving cylinder, 502, bushing, 503, diagonal rod one, 504, cylinder bracket, 505, diagonal rod two, 506, adjustment base plate, 507, bottom frame, 508, roller, 509, sliding rod two, 510, fixed bracket, 511, sliding bracket, 6, enclosure, 7, indicator light, 8, connecting beam, 9, walking wheel. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings:

[0035] Refer to the attached Figure 1-10 In the present embodiment, a material handling vehicle with an adjustable spacing structure includes a vehicle 1 and a fence 6. The lower outer edge of the rear end of the vehicle 1 is fixedly connected to the end of the inner wall of the fence 6. The model of the vehicle 1 can be determined according to specific usage conditions. A lifting component 3 is installed at the front end of the vehicle 1, and an adjustment component 5 is installed on the upper part of the movable crossbeam 302 in the lifting component 3. A material storage component 4 is distributed at the front end center of the lifting platform 306 in the lifting component 3, and indicator lights 7 are installed on both sides of the upper end of the vehicle 1.

[0036] Refer to the attached Figure 1-10 : In this embodiment, the adjustment component 5 includes a driving cylinder 501, a sleeve 502, an inclined rod 1 503, a cylinder bracket 504, an inclined rod 2 505, an adjustment base plate 506, a bottom frame 507, a roller 508, a sliding rod 2 509, a fixed bracket 510 and a sliding bracket 511;

[0037] A plurality of adjustment substrates 506 are equidistantly distributed above the bottom frame 507, and a fixed bracket 510 and a sliding bracket 511 are respectively provided on both sides of the lower end of the adjustment substrate 506, the fixed bracket 510 is fixedly connected to the adjustment substrate 506, a sliding rod 509 is fixedly connected to the center of the outer wall of the fixed bracket 510, the sliding rod 509 can provide sliding support for the sliding bracket 511, the outer wall of the sliding rod 509 is slidably connected to the sliding bracket 511, one side of the outer wall of the fixed bracket 510 and one side of the inner wall of the bottom frame 507 are both rotatably connected to the lower end of the inclined rod 1 503 through a pin shaft, one side of the outer wall of the sliding bracket 511 is rotatably connected to the lower end of the inclined rod 2 505 through a pin shaft, the end of the lowest inclined rod 2 505 is rotatably connected to a roller 508, and the inclined rod 1 503 and the inclined rod 2 The central part of 505 is rotatably connected by a pin shaft, the oblique rod 1 503 and the oblique rod 2 505 are cross-distributed, the lower part of the outer wall of the roller 508 is in contact with the inner wall of the bottom frame 507, and the outer wall of the crossbeam of the lowest oblique rod 2 505 is rotatably connected with multiple sleeves 502, the outer wall of the sleeve 502 is fixedly connected to the output shaft of the driving cylinder 501, and the end of the driving cylinder 501 is fixedly connected to the cylinder bracket 504, the model of the driving cylinder 501 can be determined according to the specific usage, the lower part of the cylinder bracket 504 is movably connected to the bottom frame 507 by a pin shaft, the front and rear adjustment base plate 506, the oblique rod 1 503 and the oblique rod 2 505 are distributed in mirror symmetry, the structural dimensions of the oblique rod 1 503 and the oblique rod 2 505 are consistent, and the structural dimensions of the fixed bracket 510 and the sliding bracket 511 are consistent.

[0038] Refer to the attached Figure 1-10 : In this embodiment, the lifting assembly 3 includes a gusset plate 301, a movable crossbeam 302, a main frame 303, a slideway 304, a threaded rod 305 and a lifting platform 306;

[0039] The main frame 303 is fixedly connected to the front end of the main body of the transport vehicle 1. The inner walls of the main frame 303 are fixedly connected with slideways 304 on both sides. The inner walls of the slideways 304 are slidably connected to the lifting platform 306. The inner walls of the rear sides of the main frame 303 are rotatably connected with threaded rods 305. The rotation of the threaded rods 305 can control the height adjustment of the sliding platform 306. The lower part of the outer wall of the threaded rod 305 is threadedly connected to the lifting platform 306. The end of the threaded rod 305 is connected to the internal power of the transport vehicle 1 through a transmission structure. The source is connected, and the internal power source of the transport vehicle 1 can drive the threaded rod 305 to rotate in both forward and reverse modes. The front end of the lifting platform 306 is fixedly connected with movable beams 302 on both sides, and the front and rear sides above the movable beams 302 are fitted with buckle plates 301. The upper ends of the buckle plates 301 are fixedly connected to the bottom frame 507. The front end of the main frame 303 is fixedly connected with fixed beams 2 on both sides, and the lower ends of the transport vehicle 1 and the fixed beams 2 are installed with walking wheels 9, and the overall movement of the equipment can be realized by the walking wheels 9.

[0040] By driving the cylinder 501, the frame 401, the diagonal rod 1 503, the diagonal rod 2 505, the material storage platform 405 and the adjusting substrate 506, the output shaft of the driving cylinder 501 is controlled to retract, and the diagonal rod 2 505 starts to rotate and drives the diagonal rod 1 503 to rotate, thereby driving the diagonal rod structure of each layer to rotate synchronously, so as to achieve the synchronous spacing adjustment of multiple adjusting substrates 506, the frame 401 and the material storage platform 405, so that the spacing between the multiple material storage platforms 405 is expanded, and then the user can place the materials to be transported on the upper part of the material storage platform 405 for storage, and finally control the equipment to move to the position where the materials need to be transported to realize the material transportation process. Through the above-mentioned cooperation, when in use, it is only necessary to control the extension and retraction state of the output shaft of the driving cylinder 501 to control the spacing adjustment between the multiple layers of material storage platforms 405, which effectively avoids the problem that the existing fixed bracket cannot be adjusted according to the size of the transported material, and is prone to the problem that the spacing is too high, resulting in space waste, or the spacing is too low, resulting in the inability to store materials.

[0041] Refer to the attached Figure 1-10 : In this embodiment, the material storage assembly 4 includes a frame 401, a drive motor 402, a friction disc 403, a slide bar 404, a material storage platform 405, a spring 406, a motor bracket 407, a lifting cylinder 408, an arc groove roller 409 and a round rod 410;

[0042] A plurality of frames 401 are all located directly above the corresponding material storage platform 405, and the upper center of the protruding portion of the frame 401 is fixedly connected with a lifting cylinder 408, and the model of the lifting cylinder 408 can be determined according to the specific usage. The output stroke of the lifting cylinder 408 is relatively short, and is used to control the compression release or reset of the friction disk 403. The end of the output shaft of the lifting cylinder 408 is fixedly connected with a motor bracket 407, and the outer side of the upper end of the motor bracket 407 is fixedly connected with a driving motor 402. The inner wall of the protruding portion of the frame 401 is rotatably connected with an arc groove roller 409, and the model of the driving motor 402 can be determined according to the specific usage. The driving motor 402 is a servo motor, and the ends of the arc groove roller 409 and the output shaft of the driving motor 402 are fixedly connected with the friction disk 403, and the friction disk 403 can be realized The rotation between the arc groove roller 409 and the output shaft of the driving motor 402 is transmitted, and the friction disks 403 on the upper and lower sides are tightly pressed against each other. Round rods 410 are fitted on both sides of the outer wall groove of the arc groove roller 409, and the outer ends of the round rods 410 are fixedly connected to the inner wall of the notch of the storage platform 405. Slide rods 404 are fixedly connected on both sides of the protrusion of the storage platform 405. The slide rod 404 penetrates and is slidably connected to the frame 401. A spring 406 is arranged above the outer wall of the slide rod 404. The elastic coefficient of the spring 406 can be determined according to the specific usage. The two sides of the spring 406 are respectively fixedly connected to the frame 401 and the end baffle of the slide rod 404. The front and rear ends of the protrusions of the multiple frames 401 are fixedly connected to the outer wall of the adjustment substrate 506 through the connecting beam 8.

[0043] Through the cooperation among the driving motor 402, the arc groove roller 409, the round rod 410, the material storage platform 405 and the frame 401, when storing materials at a higher height, the driving motor 402 can be controlled to start, so that it drives the arc groove roller 409 to rotate. Due to the cooperation between the arc groove of the inner wall of the arc groove roller 409 and the round rod 410, the round rod 410 and the material storage platform 405 are driven to move downward. At this time, the material is embedded through the frame 401 and is located on the surface of the material storage platform 405, so that the frame 401 is blocked at the originally higher position of the outer wall of the material. On the contrary, when storing materials at a lower height, the driving motor 402 can be controlled to reverse. By controlling the forward and reverse rotation of the driving motor 402, the relative position between the frame 401 and the material storage platform 405 can be adjusted, so as to adapt to the protection of storage materials of different heights and sizes, and effectively avoid the problem that the frame structure in the prior art cannot change according to the height change of the stored material, and it is easy to have the problem that the frame is too low and the protection is poor or the frame is too high during the transportation of the material, which makes it inconvenient to take;

[0044] Through the coordination among the material storage platform 405, the friction disc 403, the drive motor 402, the motor bracket 407, the spring 406 and the round rod 410, after the stored material is taken out from the material storage platform 405, the user can control the lifting cylinder 408 so that the output shaft of the lifting cylinder 408 drives the drive motor 402 and the upper friction disc 403 to move upward through the motor bracket 407. At this time, the two originally pressed friction discs 403 are no longer in contact with each other, and during the position adjustment process of the material storage platform 405, the state of the spring 406 changes accordingly. In the process of resetting, the up-down position of the round rod 410 changes, and the arc groove roller 409 can be driven to rotate and reset. In this case, the lifting cylinder 408 is controlled to release the compression state of the friction disk 403, and the spring 406 is used to quickly control the storage platform 405 to reset after the restriction is released, which effectively avoids the problem that the resetting process is slow and inefficient due to the same efficiency of the adjustment process and the resetting process if the power source is reversed.

[0045] Working principle:

[0046] When the material handling vehicle with an adjustable spacing structure is needed, the user can first assemble the overall structure, and after assembly, move the equipment to the corresponding pickup position via the walking wheels 9, and then the user can control the driving cylinder 501 to retract the output shaft of the driving cylinder 501, and at this time the inclined rod 2 505 starts to rotate and then drives the inclined rod 1 503 to rotate, thereby driving the inclined rod structure of each layer to rotate synchronously, so as to achieve synchronous spacing adjustment of multiple adjustment substrates 506, frames 401 and storage platforms 405, so that the spacing between multiple storage platforms 405 is expanded, and then the user can place the material to be transported on the upper part of the storage platform 405 for storage, and finally control the equipment to move to the required The material transportation process can be realized at the conveying position. Compared with the material handling vehicle with a fixed bracket in the prior art, during the process of taking materials, since the spacing between each layer of the bracket is fixed, it cannot be adjusted according to the size of the transported material. In this way, it is easy to have the problem of space waste caused by too high spacing or the inability to store materials caused by too low spacing. Therefore, the present case designs an adjustment component 5, so that when in use, it is only necessary to control the extension and retraction state of the output shaft of the driving cylinder 501 to control the spacing adjustment between the multi-layer storage platforms 405, which effectively avoids the problem that the existing fixed bracket cannot be adjusted according to the size of the transported material, and it is easy to have the problem of space waste caused by too high spacing or material inability to store caused by too low spacing.

[0047] At the same time, during use, the user can control the relative position between the frame 401 and the material storage platform 405 by controlling the forward and reverse rotation of the drive motor 402. For example, when storing materials at a higher height, the drive motor 402 can be controlled to start, so that it drives the arc groove roller 409 to rotate. Due to the cooperation between the arc groove on the inner wall of the arc groove roller 409 and the round rod 410, the round rod 410 and the material storage platform 405 are driven to move downward. At this time, the material is embedded in the frame 401 and is located on the surface of the material storage platform 405, so that the frame 401 is blocked at a higher position of the outer wall of the material. On the contrary, when storing materials at a lower height, the drive motor 402 can be controlled to reverse. Compared with the fixed support type in the prior art The frame structure is fixedly connected for protection and cannot be changed according to the height of the stored materials. Therefore, it is easy for the frame to be too low for poor protection or too high for inconvenience in taking the materials during transportation. Therefore, in this case, the relative position between the frame 401 and the storage platform 405 can be adjusted by controlling the forward and reverse rotation of the drive motor 402, so as to adapt to the protection of storage materials of different heights and sizes, and effectively avoid the problem in the prior art that the frame structure cannot be changed according to the height of the stored materials, and it is easy for the frame to be too low for poor protection or too high for inconvenience in taking the materials during transportation.

[0048] Finally, after the stored materials are taken out from the material storage platform 405, the user can control the lifting cylinder 408 so that the output shaft of the lifting cylinder 408 drives the drive motor 402 and the upper friction plate 403 to move upward through the motor bracket 407. At this time, the two originally pressed friction plates 403 are no longer in contact with each other, and during the position adjustment process of the material storage platform 405, the state of the spring 406 changes accordingly, and it is either in a pressed state or in a stretched state. When the friction plate 403 is in an extruded state, the self-locking ability of the drive motor 402 no longer acts on the arc groove roller 409, so that the material storage platform 405 can be reset by the elastic force of the spring 406. During the reset process, the up and down positions of the round rod 410 change, thereby driving the arc groove roller 409 to rotate and reset. After the reset is completed, the lifting cylinder 408 is controlled to restore the friction plate 403 to the pressed state, so that the frame 401 and the material storage platform 405 can be achieved. Quick reset after relative position adjustment. Compared with the prior art, if a simple lifting structure control is used to adjust the relative position between the frame 401 and the storage platform 405, it is necessary to control the power source to reverse so that the frame 401 and the storage platform 405 can be reset. However, usually because the adjustment process needs to be precise and stable, the time required to reach the right position is relatively long, and what is needed during reset is fast and efficient. However, by controlling the power source to reverse, the efficiency of the adjustment process and the reset process are consistent, resulting in a relatively slow and inefficient reset process. Therefore, in this case, the lifting cylinder 408 is controlled to release the compression state of the friction disk 403, and then the spring 406 is used, so that after the restriction is released, the spring 406 can quickly control the storage platform 405 to reset, effectively avoiding the problem that the adjustment process and the reset process are consistent in efficiency if the power source is reversed.

[0049] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A material handling vehicle provided with an adjustable spacing structure, comprising a material handling vehicle (1) and a fence (6), characterized in that: A lifting assembly (3) is installed at the front end of the transport vehicle (1); an adjusting assembly (5) is installed on the upper part of the movable crossbeam (302) in the lifting assembly (3); a material storage assembly (4) is distributed at the front center of the lifting platform (306) in the lifting assembly (3); and indicator lights (7) are installed on both sides of the upper end of the transport vehicle (1); The adjustment component (5) comprises a driving cylinder (501), a shaft sleeve (502), a first inclined rod (503), a cylinder bracket (504), a second inclined rod (505), an adjustment base plate (506), a bottom frame (507), a roller (508), a second sliding rod (509), a fixed bracket (510) and a sliding bracket (511); The plurality of adjustment substrates (506) are equidistantly distributed above the bottom frame (507); a fixed bracket (510) and a sliding bracket (511) are respectively distributed on both sides of the lower end of the adjustment substrate (506); the fixed bracket (510) is fixedly connected to the adjustment substrate (506); a second sliding rod (509) is fixedly connected to the center of the outer wall of the fixed bracket (510); the outer wall of the second sliding rod (509) is slidably connected to the sliding bracket (511); one side of the outer wall of the fixed bracket (510) and one side of the inner wall of the bottom frame (507) are rotatably connected to the lower end of the first oblique rod (503) through a pin shaft; one side of the outer wall of the sliding bracket (511) is connected to the lower end of the first oblique rod (503) through a pin shaft. The lower end of the second inclined rod (505) is rotatably connected, the end of the second inclined rod (505) at the bottom is rotatably connected to a roller (508), and the central parts of the first inclined rod (503) and the second inclined rod (505) are rotatably connected via a pin, the lower part of the outer wall of the roller (508) is in contact with the inner wall of the bottom frame (507), and the outer wall of the crossbeam of the second inclined rod (505) at the bottom is rotatably connected to a plurality of sleeves (502), the outer wall of the sleeves (502) is fixedly connected to the output shaft of the driving cylinder (501), and the end of the driving cylinder (501) is fixedly connected to a cylinder bracket (504), and the lower part of the cylinder bracket (504) is movably connected to the bottom frame (507) via a pin; The material storage assembly (4) comprises a frame (401), a driving motor (402), a friction disc (403), a sliding rod (404), a material storage platform (405), a spring (406), a motor bracket (407), a lifting cylinder (408), an arc groove roller (409) and a round rod (410); The plurality of frames (401) are all located directly above the corresponding material storage platform (405); the center of the upper end of the protruding portion of the frame (401) is fixedly connected to a lifting cylinder (408); the end of the output shaft of the lifting cylinder (408) is fixedly connected to a motor bracket (407); the outer side of the upper end of the motor bracket (407) is fixedly connected to a driving motor (402); the inner wall of the protruding portion of the frame (401) is rotatably connected to an arc groove roller (409); the ends of the arc groove roller (409) and the output shaft of the driving motor (402) are fixedly connected to a friction disk (403); and the friction disks on the upper and lower sides are fixedly connected to the friction disks (403). The disks (403) are tightly pressed together, and round rods (410) are fitted on both sides of the outer wall groove of the arc groove roller (409), and the outer ends of the round rods (410) are fixedly connected to the inner wall of the notch of the storage platform (405), and the protruding parts of the storage platform (405) are fixedly connected with sliding rods (404), and the sliding rods (404) penetrate the frame (401) and are slidably connected. A spring (406) is arranged on the upper part of the outer wall of the sliding rod (404), and the two sides of the spring (406) are respectively fixedly connected to the frame (401) and the end baffle of the sliding rod (404).

2. A material handling vehicle with an adjustable spacing structure according to claim 1, characterized in that: The front and rear adjustment base plates (506), the first oblique rod (503) and the second oblique rod (505) are distributed in a mirror-symmetrical manner, the first oblique rod (503) and the second oblique rod (505) have the same structural dimensions, and the fixed bracket (510) and the sliding bracket (511) have the same structural dimensions.

3. A material handling vehicle with an adjustable spacing structure according to claim 1, characterized in that: The lifting assembly (3) comprises a gusset plate (301), a movable crossbeam (302), a main frame (303), a slideway (304), a threaded rod (305) and a lifting platform (306); The main frame (303) is fixedly connected to the front end of the main body of the transport vehicle (1); both sides of the inner wall of the main frame (303) are fixedly connected with slideways (304); the inner wall of the slideway (304) is slidably connected to the lifting platform (306); the inner walls of both sides of the rear part of the main frame (303) are rotatably connected with threaded rods (305); the lower part of the outer wall of the threaded rod (305) is threadedly connected to the lifting platform (306); the end of the threaded rod (305) is connected to the internal power source of the transport vehicle (1) through a transmission structure; both sides of the front end of the lifting platform (306) are fixedly connected with movable crossbeams (302); the upper front and rear sides of the movable crossbeam (302) are fitted with buckle plates (301).

4. A material handling vehicle with an adjustable spacing structure according to claim 3, characterized in that: The upper ends of the gusset plates (301) are fixedly connected to the bottom frame (507), and both sides below the front end of the main frame (303) are fixedly connected to fixed crossbeams (2).

5. A material handling vehicle with an adjustable spacing structure according to claim 3, characterized in that: Travel wheels (9) are installed at the lower ends of the transport vehicle (1) and the fixed crossbeam (2).

6. A material handling vehicle with an adjustable spacing structure according to claim 1, characterized in that: The front and rear ends of the protruding parts of the plurality of frames (401) are fixedly connected to the outer wall of the adjustment base plate (506) via a connecting beam (8).

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