Anti-collision device for electric transport vehicle

Abstract

The present invention discloses an anti-collision device for an electric transport vehicle, and specifically relates to the technical field of transport vehicles, including a high-tonnage tractor, wherein an anti-collision deployment structure is symmetrically arranged on the upper end of the cargo platform, two sets of symmetrically distributed side anti-collision structures are arranged on the sides away from each other of the two anti-collision deployment structures, and symmetrically distributed cargo limiting structures are arranged on the ends close to each other of the two anti-collision deployment structures, and a rear anti-collision structure is arranged at the rear of the upper end of the cargo platform. The anti-collision device for an electric transport vehicle described in the present invention utilizes the cooperation of the anti-collision deployment structure and the rear anti-collision structure to protect the cargo from the rear, and at the same time drives the side anti-collision structure to deploy, protecting the cargo from collision from the side, and at the same time drives the cargo limiting structure to be close to the cargo from both sides through the cooperation of the anti-collision deployment structure and the cargo limiting structure, thereby realizing auxiliary support and fixation of the cargo, and reducing the displacement of the cargo during transportation or when the cargo platform is hit.

Description

Technical Field

[0001] The invention relates to the technical field of transport vehicles, and in particular to an anti-collision device for an electric transport vehicle. Background Art

[0002] With the development of industrial automation and logistics industries, electric transport trucks have been widely used in warehouses, factories, hospitals, schools, shopping malls, airports and other places due to their advantages such as easy operation, flexibility, low noise and no exhaust emissions. These vehicles are mainly used for cargo handling and stacking operations, greatly improving the efficiency of cargo handling. However, due to the complexity of the working environment and the uncertainty in the operation process, there is a risk of collision during the operation of electric transport trucks, which may not only cause damage to the vehicle and cargo, but also pose a threat to the safety of operators and other staff.

[0003] Chinese patent announcement No. CN211617958U discloses a safety anti-collision device for a battery transport truck, including a vehicle body, two hinges are fixedly installed on the front and back of the vehicle body, and side guard plates extending to the top of the front and back of the vehicle body are fixedly installed on the top of the hinges on the front and back, respectively. The front and back of the vehicle body are provided with matching grooves located on the right side of the side guard plates, and connecting plates extending to the inside of the two matching grooves are fixedly installed on the right side of the side guard plates, and positioning plates are fixedly installed on the opposite sides of the connecting plates. Positioning arms are movably installed on the front and back of the vehicle body, which are located on the right side of the matching grooves and extend to the top of the positioning plates.

[0004] However, the existing anti-collision device cannot be automatically stored when not needed, which occupies the working space of the vehicle and affects the handling efficiency;

[0005] In some cases, the anti-collision device needs to be manually disassembled and loaded, which not only increases the labor intensity of the operator but also reduces the work efficiency;

[0006] In addition, it may affect the operational process of loading and unloading goods on the cargo platform to a certain extent, especially in an environment with limited space, the presence of the anti-collision device may hinder the smooth loading and unloading of goods. Summary of the invention

[0007] The main purpose of the present invention is to provide an anti-collision device for an electric transport vehicle, which can effectively solve the problem that the existing anti-collision device occupies space when not in use, increases the burden of manual operation, and may hinder the loading and unloading of goods, affecting the transportation efficiency.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] An anti-collision device for an electric transport vehicle comprises a high-tonnage tractor, a cargo platform being fixedly connected to the rear end of the high-tonnage tractor, an anti-collision deployment structure being symmetrically arranged on the upper end of the cargo platform, two sets of symmetrically distributed side anti-collision structures being arranged on the sides away from each other of the two anti-collision deployment structures, the two side anti-collision structures on the same side are symmetrically distributed up and down, and symmetrically distributed cargo limiting structures are arranged on the ends of the two anti-collision deployment structures close to each other, a rear anti-collision structure is arranged at the rear of the upper end of the cargo platform, a slide groove 1 is symmetrically opened on the upper end of the cargo platform, and a slide groove 2 is symmetrically opened on the left and right parts of the upper end of the cargo platform along the same side slide groove 1.

[0010] Preferably, the anti-collision deployment structure includes three slides that are linearly distributed and slidably connected to the inner surfaces of two slide grooves on the same side, the upper end of the slide located in the middle is fixedly connected to a center column, the upper ends of the two slides located on the front and rear sides are fixedly connected to support columns, the center column is symmetrically provided with cross grooves, the ends of the two support columns close to each other are symmetrically connected to telescopic rods one by rotation, the ends of the two telescopic rods one located at the same horizontal height are symmetrically connected to a cross slider that is slidably connected to the inner surfaces of adjacent cross grooves, and the two support columns are symmetrically provided with limit grooves for installing the side anti-collision structure on the side away from the middle of the cargo platform.

[0011] Preferably, the anti-collision deployment structure also includes three fixed blocks 1 located on the inner side of the slide groove and fixedly connected to the lower end of the slide, the inner surfaces of the three fixed blocks 1 are commonly provided with a threaded rod rotatably connected to the inner surface of the slide groove, the front end of the threaded rod is transmission connected to the motor in the cargo platform, the fixed block 1 located at the rear is threadedly connected to the outer surface of the threaded rod, the fixed block 1 located at the front is fixedly connected to the inner surface of the slide groove, the fixed block 1 located in the middle is slidably connected to the inner surface of the slide groove, the two fixed blocks 1 located at the front are both slidably connected to the outer surface of the threaded rod, and the rear end of the threaded rod is transmission connected to the rear anti-collision structure.

[0012] Preferably, the side anti-collision structure includes two center sliders symmetrically distributed up and down, and the left and right sides of the two center sliders and the support columns on the same side are jointly provided with expansion wall assemblies, and the ends of the two expansion wall assemblies on the same side close to each other are jointly provided with several groups of linearly distributed anti-collision assemblies, the center slider close to the middle of the threaded rod is fixedly connected to the threaded rod, and the center slider away from the middle of the threaded rod is slidably connected to the inner surface of the cross groove.

[0013] Preferably, the expansion wall assembly includes a rectangular block, one end of the rectangular block close to the center slider is fixedly connected to a multi-stage telescopic rod, the outer surface of each stage of the multi-stage telescopic rod is fixedly connected to a fixed block 2, the end piston rod of the multi-stage telescopic rod is fixedly connected to the center slider, the rectangular block close to the middle of the support column is fixedly connected to the support column, and the rectangular block away from the middle of the support column is slidably connected to the inner surface of the limit groove.

[0014] Preferably, the anti-collision assembly includes a chain plate 1 which is symmetrically distributed up and down and fixedly connected to two fixed blocks 2 in the same vertical direction; the inner surfaces of the two chain plates 1 are symmetrically connected to support rods for rotation left and right; the ends of the two support rods on the same side that are close to each other are commonly fixedly connected to an anti-collision pad; the sides of several support rods away from the chain plate 1 are rotationally connected to a chain plate 2 that is rotationally connected to the next group of support rods; the inner surfaces of the two chain plates 1 in the same vertical direction are slidably connected to a limiting rod with the inner surface of the fixed block 2.

[0015] Preferably, the cargo limiting structure includes three groups of storage slots 2 symmetrically opened up and down on one side of the support column and the center column near the middle of the cargo platform, the inner surfaces of the three groups of storage slots 2 are rotatably connected with connecting rods, two adjacent connecting rods are symmetrically distributed, and the ends connected to the storage slots 2 are far away from each other, the ends of the two connecting rods located in the middle away from the center column are slidably connected to the I-shaped plate through a sliding seat, and the ends of the two groups of connecting rods located on the front and rear sides away from the support columns are slidably connected to the support plate through a sliding seat, the support plates on both sides are slidably connected to the inner surfaces of the notches on both sides of the I-shaped plate through sliding rails, and the ends of the I-shaped plate and the two support plates on the front and rear sides away from the connecting rod are fixedly connected with spring buffer plates.

[0016] Preferably, the cargo limiting structure also includes a roller fixedly connected to one side of the cross slider close to the I-shaped plate, the roller is tightly attached to one side of the connecting rod, and one end of the support plates on both sides close to the support column is fixedly connected to a spring pull rod fixedly connected to the support column.

[0017] Preferably, the rear anti-collision structure includes a storage groove one opened at the rear part of the upper end of the cargo platform, the inner surface of the storage groove one is connected with a cover plate in a left-right rotatable manner, the ends of the two cover plates close to each other are commonly fixedly connected with two cables symmetrically distributed up and down, an elastic buffer net is set up in the rectangular area formed by the two cables and the two cover plates, and the lower part of the inner surface of the storage groove one is fixedly connected with an elastic pull rope wound around the two cables.

[0018] Preferably, the rear anti-collision structure also includes a transmission gear group that is transmission-connected to the cover plate, and a mounting groove for installing the transmission gear group is opened on the rear side of the cargo platform. The transmission gear group is composed of two bevel gear groups connected by a transmission shaft, and the input gear of the transmission gear group is transmission-connected to the threaded rod, and the output gear of the transmission gear group is transmission-connected to the center axis of the cover plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention utilizes a forklift to place the cargo on the cargo platform, and drives the anti-collision deployment structure to operate and deploy through the internal motor of the high-tonnage tractor, and at the same time utilizes the cooperation of the anti-collision deployment structure and the rear anti-collision structure to drive the rear anti-collision structure to operate, thereby protecting the cargo from the rear, and the anti-collision deployment structure drives the side anti-collision structure to deploy while deploying, thereby protecting the cargo from collision from the side, and at the same time, the cooperation of the anti-collision deployment structure and the cargo limiting structure drives the cargo limiting structure to be in close contact with the cargo from both sides, thereby realizing auxiliary support and fixation of the cargo, and reducing the displacement of the cargo during transportation or when the cargo platform is hit.

[0021] The present invention uses the action of the anti-collision deployment structure to deploy the support column and the center column while utilizing the action of the telescopic rod 1 and the cross slider to drive the side anti-collision structure to move, thereby pulling the side anti-collision structure to deploy on the side of the cargo platform, thereby utilizing the buffering effect of the side anti-collision structure to reduce the impact caused by the side collision, and further protecting the cargo; at the same time, utilizing the transmission effect of the threaded rod and the transmission gear set to drive the cover plate to deploy from the storage groove 1, thereby utilizing the action of the cable and the cover plate to pull the elastic buffer net to make it suspended at the rear of the cargo platform, thereby forming a buffer net, and simultaneously utilizing the action of the elastic pull rope, cable and elastic buffer net to intercept the impact entering from the rear, thereby reducing the probability of damage to the cargo and improving the protection effect.

[0022] The present invention cooperates with the side anti-collision structure during the deployment of the anti-collision deployment structure. The center column and the center slider, the limit groove and the deployment wall assembly are used to synchronously drive the anti-collision assembly to be deployed horizontally, and the telescopic rod and the cross slider are used to pull it open, so that the anti-collision pad forms a buffer area that can cover the goods, and the elastic potential energy in the anti-collision pad absorbs external impacts, thereby reducing the impact force on the goods, improving stability, and reducing cargo deviation.

[0023] The present invention utilizes the effect of the cargo limiting structure to achieve auxiliary support for the inner cargo, so as to avoid tilting, misalignment or displacement caused by side collision during transportation. During the transportation of cargo, it is inevitable that the cargo will be subjected to impact force due to collision. This impact force will cause the cargo to deviate to a certain extent. During the deployment of the anti-collision deployment structure, the I-plate and the spring buffer plate can be simultaneously driven to deploy, and at the same time, the cooperation of the roller and the connecting rod is utilized to push the connecting rod to expand outward, thereby pushing the spring buffer plate installed on the I-plate and the support plate to fit with the surface of the cargo, and gradually being pressed by force, so as to provide support for the cargo from the side and reduce the displacement of the cargo caused by the residual impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the relationship between the cargo platform and the positions of various structures of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the anti-collision deployment structure of the present invention;

[0027] Figure 4 It is a bottom view structural schematic diagram of the anti-collision deployment structure of the present invention;

[0028] Figure 5 It is a schematic structural diagram of the rear anti-collision structure of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the side collision protection structure of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the unfolding wall assembly of the present invention;

[0031] Figure 8 It is a schematic structural diagram of the anti-collision assembly of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the cargo limiting structure of the present invention;

[0033] Fig.10 It is a schematic diagram of the connection relationship between the cargo limiting structure and the cross slide block of the present invention.

[0034] In the figure: 1. high-tonnage tractor; 2. cargo platform; 21. slideway 1; 22. slideway 2; 23. installation slot; 3. rear anti-collision structure; 31. transmission gear set; 32. cover plate; 33. storage slot 1; 34. elastic pull rope; 35. cable; 36. elastic buffer net; 4. anti-collision deployment structure; 41. threaded rod; 42. slideway; 43. support column; 44. center column; 45. cross slot; 46. limit slot; 47. telescopic rod 1; 48. cross slider; 49. Fixed block one; 5. Side anti-collision structure; 51. Expanding wall assembly; 511. Multi-stage telescopic rod; 512. Rectangular block; 513. Fixed block two; 52. Anti-collision assembly; 521. Support rod; 522. Anti-collision pad; 523. Chain plate one; 524. Chain plate two; 525. Limit rod; 53. Center slider; 6. Cargo limiting structure; 61. Connecting rod; 62. Storage slot two; 63. I-shaped plate; 64. Support plate; 65. Spring buffer plate; 66. Roller. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] Embodiment 1, as Figure 1 and Figure 2 As shown, an anti-collision device for an electric transport vehicle comprises a high-tonnage tractor 1, a cargo platform 2 is fixedly connected to the rear end of the high-tonnage tractor 1, an anti-collision deployment structure 4 is symmetrically arranged on the upper end of the cargo platform 2, two groups of symmetrically distributed side anti-collision structures 5 are arranged on the side away from each other, the two side anti-collision structures 5 on the same side are symmetrically distributed up and down, and the ends of the two anti-collision deployment structures 4 close to each other are arranged with symmetrically distributed cargo limiting structures 6, a rear anti-collision structure 3 is arranged at the rear of the upper end of the cargo platform 2, a slide groove 1 21 is symmetrically opened on the upper end of the cargo platform 2, and a slide groove 2 22 is symmetrically opened on the left and right parts of the upper end of the cargo platform 2 along the slide groove 1 21 on the same side.

[0037] During the operation of this embodiment, the cargo is first placed on the cargo platform 2 using a forklift, and the anti-collision deployment structure 4 is driven by the internal motor of the high-tonnage tractor 1 to operate and deploy. At the same time, the anti-collision deployment structure 4 and the rear anti-collision structure 3 are used to drive the rear anti-collision structure 3 to operate to protect the cargo from the rear. When the anti-collision deployment structure 4 is deployed, the side anti-collision structure 5 is also driven to deploy to protect the cargo from collision from the side. At the same time, the anti-collision deployment structure 4 and the cargo limiting structure 6 are used to drive the cargo limiting structure 6 to be close to the cargo from both sides, thereby achieving auxiliary support and fixation of the cargo and reducing the displacement of the cargo during transportation or when the cargo platform 2 is hit.

[0038] It should be particularly noted that the above-mentioned high-tonnage tractor 1 is a high-tonnage transport tractor, which can carry more than 25 tons of cargo and uses lithium batteries as energy. Compared with traditional vehicles, it has less impact on the environment and is more convenient and quick to charge and store energy. The vehicle has been widely used in the prior art. In the present invention, it is only used to realize the function of driving the cargo platform 2 and the cargo above it to move, and its internal structure, operating principle, wiring, and control method will not be described in detail.

[0039] Embodiment 2. Based on embodiment 1, this embodiment uses the action of the anti-collision deployment structure 4 to deploy the support column 43 and the center column 44 while utilizing the action of the telescopic rod 47 and the cross slider 48 to drive the side anti-collision structure 5 to move, thereby pulling the side anti-collision structure 5 to deploy on the side of the cargo platform 2, thereby utilizing the buffering action of the side anti-collision structure 5 to reduce the impact caused by the side collision, thereby protecting the cargo; at the same time, utilizing the transmission action of the threaded rod 41 and the transmission gear set 31 to drive the cover plate 32 to deploy from the storage slot 33, thereby utilizing the action of the cable 35 and the cover plate 32 to pull the elastic buffer net 36 to make it suspended at the rear of the cargo platform 2, thereby forming a buffer net, and simultaneously utilizing the action of the elastic pull rope 34, the cable 35 and the elastic buffer net 36 to intercept the impact entering from the rear, thereby reducing the probability of damage to the cargo and improving the protection effect.

[0040] Specifically, in order to provide a place for installing the side anti-collision structure 5 and the cargo limiting structure 6, and simultaneously protect the cargo around the cargo to prevent the cargo from being hit, refer to Figure 3 and Figure 4 The anti-collision deployment structure 4 includes three slides 42 that are linearly distributed and slidably connected to the inner surfaces of the two slide grooves 22 on the same side. The upper end of the slide 42 located in the middle is fixedly connected to a center column 44, and the upper ends of the two slides 42 located on the front and rear sides are fixedly connected to support columns 43. The center column 44 is symmetrically provided with cross grooves 45, and the ends of the two support columns 43 close to each other are symmetrically connected to telescopic rods 47 for rotation. The ends of the two telescopic rods 47 located at the same horizontal height that are close to each other are jointly rotatably connected to a cross slider 48 that is slidably connected to the inner surfaces of the adjacent cross grooves 45. The two support columns 43 are symmetrically provided with limit grooves 46 for installing the side anti-collision structure 5 on the side away from the middle of the cargo platform 2.

[0041] The support columns 43 on both sides are mainly used to provide an installation place for the telescopic rod 47, and to store the telescopic rod 47 inside when folded to avoid affecting the loading and unloading of goods. The cross slider 48 slides up and down in the cross groove 45 following the position change of the telescopic rod 47, thereby cooperating with the side anti-collision structure 5 and the cargo limiting structure 6 to protect the cargo.

[0042] Further, in order to realize the deployment of the side anti-collision structure 5 and the cargo limiting structure 6, refer to Figure 4 The anti-collision deployment structure 4 also includes three fixed blocks 49 located on the inner side of the slide groove 21 and fixedly connected to the lower end of the slide 42. The inner surfaces of the three fixed blocks 49 are commonly provided with a threaded rod 41 rotatably connected to the inner surface of the slide groove 21. The front end of the threaded rod 41 is transmission-connected to the motor in the cargo platform 2. The fixed block 49 located at the rear is threadedly connected to the outer surface of the threaded rod 41. The fixed block 49 located at the front is fixedly connected to the inner surface of the slide groove 21. The fixed block 49 located in the middle is slidably connected to the inner surface of the slide groove 21. The two fixed blocks 49 located at the front are both slidably connected to the outer surface of the threaded rod 41. The rear end of the threaded rod 41 is transmission-connected to the rear anti-collision structure 3.

[0043] There is a ready-made power source inside the cargo platform 2, and the power is transmitted to the threaded rod 41 through the coupling. When the threaded rod 41 rotates, the cooperation between the threaded rod 41 and the fixed block 49 causes the fixed block 49 to slide in the slide groove 21, and the fixed block 49 on the rear side follows the rotation of the threaded rod 41 and moves under the action of the thread, and is pulled by the telescopic rod 47 to move synchronously with the center column 44. Due to the cooperation of the telescopic rod 47 and the cross slider 48, the telescopic rods 47 on the front and rear sides rotate synchronously, so that the support columns 43 and the center column 44 on both sides are equidistantly deployed, thereby driving the side anti-collision structure 5 and the cargo limiting structure 6 to deploy to protect the cargo.

[0044] Further, to avoid collision at the rear of the cargo, refer to Figure 5 The rear anti-collision structure 3 includes a storage groove 33 opened at the rear part of the upper end of the cargo platform 2, and the inner surface of the storage groove 33 is symmetrically connected to the cover plate 32, and the ends of the two cover plates 32 close to each other are fixedly connected to two cables 35 symmetrically distributed up and down, and the rectangular area formed by the two cables 35 and the two cover plates 32 is set with an elastic buffer net 36, and the lower part of the inner surface of the storage groove 33 is fixedly connected to an elastic pull rope 34 wound around the two cables 35.

[0045] Further, in order to realize the unfolding of the cover plate 32 following the movement of the anti-collision unfolding structure 4, see Figure 5 The rear anti-collision structure 3 also includes a transmission gear set 31 that is transmission-connected to the cover plate 32. A mounting groove 23 for mounting the transmission gear set 31 is provided on the rear side of the cargo platform 2. The transmission gear set 31 is composed of two bevel gear sets connected by a transmission shaft. The input gear of the transmission gear set 31 is transmission-connected to the threaded rod 41, and the output gear of the transmission gear set 31 is transmission-connected to the central axis of the cover plate 32.

[0046] The cover plate 32 arranged inside the storage groove 33 can rotate inside the storage groove 33 following the transmission action of the threaded rod 41 and the transmission gear set 31 and the expansion action of the threaded rod 41. At this time, the cover plate 32 is converted from a horizontal state inside the storage groove 33 to a vertical state perpendicular to the upper end plane of the cargo platform 2. During this process, the cover plates 32 on both sides pull the cables 35 to make them horizontal. At this time, the elastic buffer net 36 between the two cables 35 is pulled and spread out to form rear protection, and the elastic pull rope 34 generates a downward pulling force on the cable 35, prompting it to remain taut, thereby increasing more buffering force.

[0047] Embodiment 3, based on embodiment 2, this embodiment further cooperates with the anti-collision deployment structure 4 and the side anti-collision structure 5. During the deployment of the anti-collision deployment structure 4, the center column 44 and the center slider 53, the limit groove 46 and the deployment wall assembly 51 are used to synchronously drive the anti-collision assembly 52 to be deployed horizontally, and the telescopic rod 47 and the cross slider 48 are used to pull it open, so that the anti-collision pad 522 is used to form a buffer area that can cover the cargo, and the elastic potential energy in the anti-collision pad 522 absorbs external impact, reduces the impact force on the cargo, improves stability, and reduces cargo deviation.

[0048] Specifically, in order to protect the cargo from the side and prevent it from tipping over or misalignment due to collision, refer to Figure 6 and Figure 7 The side anti-collision structure 5 includes two central sliders 53 symmetrically distributed in the upper and lower parts. The left and right sides of the two central sliders 53 and the support column 43 on the same side are jointly provided with an expansion wall assembly 51. The ends of the two expansion wall assemblies 51 on the same side that are close to each other are jointly provided with a plurality of groups of anti-collision assemblies 52 distributed linearly. The central slider 53 close to the middle of the threaded rod 41 is fixedly connected to the threaded rod 41, and the central slider 53 away from the middle of the threaded rod 41 is slidably connected to the inner surface of the cross groove 45.

[0049] The central slider 53 is used to provide support for the deployment wall assemblies 51 on both sides, and can also pull the piston column in the deployment wall assembly 51 to extend outward, thereby achieving the deployment effect. Simultaneously, in this process, the deployment wall assembly 51 and the anti-collision assembly 52 are used to drive the anti-collision assembly 52 to deploy, thereby cooperating with the deployment action of the anti-collision deployment structure 4 to deploy.

[0050] The side anti-collision structure 5 can be regarded as two groups on the left and right, which are further divided into two upper and lower groups. Each side anti-collision structure 5 has four unfolding wall components 51, two center sliders 53 and two anti-collision components 52. Therefore, the center slider 53 close to the vertical center side of the center column 44 and the unfolding wall components 51 connected on both sides are fixedly connected to the support column 43 and the center column 44 respectively, while the center slider 53 and the unfolding wall component 51 away from the vertical center side of the center column 44 are both sliding and can slide relative to the center column 44 and the support column 43. Therefore, one side of the anti-collision component 52 can be fixed and the other side can be pulled to move to achieve unfolding.

[0051] Further, in order to realize the deployment and recovery following the movement of the anti-collision deployment structure 4, refer to Figure 7 and Figure 8 The expansion wall assembly 51 includes a rectangular block 512, and one end of the rectangular block 512 close to the center slider 53 is fixedly connected to the multi-stage telescopic rod 511, and the outer surfaces of each stage of the telescopic rod of the multi-stage telescopic rod 511 are fixedly connected with a fixed block 2 513, and the end piston rod of the multi-stage telescopic rod 511 is fixedly connected to the center slider 53, the rectangular block 512 close to the middle of the support column 43 is fixedly connected to the support column 43, and the rectangular block 512 away from the middle of the support column 43 is slidably connected to the inner surface of the limiting groove 46.

[0052] The multi-stage telescopic rod 511 on the rectangular block 512 can be unfolded in sequence under the traction of the central slider 53. During the unfolding process, the fixed block 2 513 on the piston rod of each stage can drive the anti-collision component 52 to unfold synchronously, thereby driving the anti-collision component 52 to unfold or retract.

[0053] Further, in order to provide cushioning protection for the cargo and facilitate stowage during loading and unloading, refer to Figure 7 and Figure 8 The anti-collision component 52 includes a chain plate 1 523 which is symmetrically distributed up and down and fixedly connected to two fixed blocks 2 513 in the same vertical direction. The inner surfaces of the two chain plates 1 523 are symmetrically connected to the support rods 521 for rotation. The ends of the two support rods 521 on the same side that are close to each other are commonly fixedly connected to the anti-collision pad 522. The sides of the support rods 521 away from the chain plate 1 523 are rotatably connected to the chain plate 2 524 which is rotatably connected to the next group of support rods 521. The inner surfaces of the two chain plates 1 523 in the same vertical direction are slidably connected to the inner surface of the fixed block 2 513 by a limiting rod 525.

[0054] The crash pad 522 is made of rubber elastic material and can be stretched. During the traction process, the crash pad 522 will accumulate elastic potential energy due to the pulling. The direction of this elastic potential energy is perpendicular to the upper plane of the cargo platform 2. At this time, when the crash pad 522 is subjected to an impact force perpendicular to the crash pad 522, it will be dispersed in the vertical direction, thereby reducing the impact force on the internal cargo and providing protection for the cargo.

[0055] The support rod 521 , chain plate 1 523 , chain plate 2 524 and limit rod 525 are all used to guide the unfolding and folding of the anti-collision pad 522 to ensure that it can be laid flat on the side of the cargo platform 2 .

[0056] Embodiment 4: Based on embodiment 3, this embodiment utilizes the function of the cargo limiting structure 6 to achieve auxiliary support for the inner cargo, so as to avoid tilting, misalignment or displacement caused by side collision during transportation. During the transportation of cargo, it is inevitable that it will be subjected to impact force due to collision. This impact force will cause the cargo to shift to a certain extent. During the deployment of the anti-collision deployment structure 4, it can simultaneously drive the I-shaped plate 63 and the spring buffer plate 65 to deploy, and at the same time utilize the cooperation of the roller 66 and the connecting rod 61 to push the connecting rod 61 to expand outward, thereby pushing the spring buffer plate 65 installed on the I-shaped plate 63 and the support plate 64 to fit with the surface of the cargo, and gradually press it tightly, providing support for the cargo from the side, and reducing the displacement of the cargo caused by the residual impact force.

[0057] Specifically, in order to provide auxiliary support for the inner cargo to avoid tilting, dislocation or displacement due to side collision during transportation, refer to Fig. 9 The cargo limiting structure 6 includes three groups of storage slots 62 symmetrically opened up and down near the middle of the cargo platform 2 on one side of the support column 43 and the center column 44. The inner surfaces of the three groups of storage slots 62 are rotatably connected with connecting rods 61. Two adjacent connecting rods 61 are symmetrically distributed and their ends connected to the storage slots 62 are far away from each other. The ends of the two connecting rods 61 located in the middle away from the center column 44 are slidably connected to the I-shaped plate 63 through a sliding seat. The ends of the two groups of connecting rods 61 located on the front and rear sides away from the support column 43 are slidably connected to the support plate 64 through a sliding seat. The support plates 64 on both sides are slidably connected to the inner surfaces of the notches on both sides of the I-shaped plate 63 through sliding rails. The ends of the I-shaped plate 63 and the two support plates 64 on the front and rear sides away from the connecting rod 61 are fixedly connected with spring buffer plates 65.

[0058] Further, in order to realize the support of the cargo following the unfolding action of the anti-collision unfolding structure 4 and the reset of the anti-collision unfolding structure 4 when it is folded, refer to Fig.10The cargo limiting structure 6 also includes a roller 66 fixedly connected to one side of the cross slider 48 close to the I-shaped plate 63, the roller 66 is tightly attached to one side of the connecting rod 61, and one end of the support plates 64 on both sides close to the support column 43 is fixedly connected to a spring pull rod fixedly connected to the support column 43.

[0059] During the unfolding process, the support plates 64 on both sides will gradually slide out of the spring buffer plates 65 when the anti-collision unfolding structure 4 is unfolded. At this time, under the action of the cross slider 48 and the roller 66, the two storage slots 62 located in the middle will be pushed to convert them from a vertical state to a horizontal direction. At this time, the storage slots 62 are pushed outward relative to the center column 44, so the spring buffer plates 65 and the support plates 64 will be pushed toward the direction of the goods, thereby exerting pressure on the goods, supporting and limiting the goods, and avoiding displacement of the goods due to residual impact.

[0060] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-collision device for an electric transport vehicle, comprising a high-tonnage tractor (1), wherein a cargo platform (2) is fixedly connected to the rear end of the high-tonnage tractor (1), and characterized in that: The upper end of the cargo platform (2) is symmetrically provided with an anti-collision deployment structure (4), and the two anti-collision deployment structures (4) are provided with two sets of symmetrically distributed side anti-collision structures (5) on the side away from each other. The two side anti-collision structures (5) on the same side are symmetrically distributed up and down, and the two anti-collision deployment structures (4) are provided with symmetrically distributed cargo limiting structures (6) on the ends close to each other. The rear end of the upper end of the cargo platform (2) is provided with a rear anti-collision structure (3), and the upper end of the cargo platform (2) is symmetrically provided with a first slide groove (21), and the left and right parts of the upper end of the cargo platform (2) are symmetrically provided with a second slide groove (22) along the same side slide groove (21); The anti-collision deployment structure (4) comprises three slides (42) linearly distributed and slidably connected to the inner surfaces of two slide grooves (22) on the same side, the upper end of the slide (42) located in the middle is fixedly connected to a center column (44), the upper ends of the two slides (42) located on the front and rear sides are fixedly connected to support columns (43), the center column (44) is symmetrically provided with cross grooves (45), the ends of the two support columns (43) close to each other are symmetrically connected to telescopic rods (47) in rotation, the ends of the two telescopic rods (47) close to each other at the same horizontal height are jointly connected to a cross slider (48) slidably connected to the inner surface of the adjacent cross groove (45), and the two support columns (43) are symmetrically provided with limit grooves (46) for installing the side anti-collision structure (5) on the side away from the middle of the cargo platform (2); The anti-collision deployment structure (4) also includes three fixed blocks (49) located on the inner side of the slide groove (21) and fixedly connected to the lower end of the slide (42); the inner surfaces of the three fixed blocks (49) are commonly provided with a threaded rod (41) rotatably connected to the inner surface of the slide groove (21); the front end of the threaded rod (41) is transmission-connected to the motor in the cargo platform (2); the fixed block (49) located at the rear is threadedly connected to the outer surface of the threaded rod (41); the fixed block (49) located at the front is fixedly connected to the inner surface of the slide groove (21); the fixed block (49) located in the middle is slidably connected to the inner surface of the slide groove (21); the two fixed blocks (49) located at the front are both slidably connected to the outer surface of the threaded rod (41); and the rear end of the threaded rod (41) is transmission-connected to the rear anti-collision structure (3); The side anti-collision structure (5) comprises two central sliders (53) symmetrically distributed in the upper and lower parts, the left and right sides of the two central sliders (53) and the support column (43) on the same side are jointly provided with an expansion wall assembly (51), and the ends of the two expansion wall assemblies (51) on the same side close to each other are jointly provided with a plurality of groups of anti-collision assemblies (52) distributed linearly, the central slider (53) close to the middle of the threaded rod (41) is fixedly connected to the threaded rod (41), and the central slider (53) away from the middle of the threaded rod (41) is slidably connected to the inner surface of the cross groove (45); The cargo limiting structure (6) comprises three groups of storage slots (62) symmetrically arranged on one side of the middle of the cargo platform (2) near the support column (43) and the center column (44); the inner surfaces of the three groups of storage slots (62) are all rotatably connected with connecting rods (61); two adjacent connecting rods (61) are symmetrically distributed and their ends connected to the storage slots (62) are away from each other; the ends of the two connecting rods (61) located in the middle away from the center column (44) are slidably connected to the I-shaped plate (63) through a sliding seat; the ends of the two groups of connecting rods (61) located on the front and rear sides away from the support column (43) are slidably connected to the support plate (64) through a sliding seat; the support plates (64) on both sides are slidably connected to the inner surfaces of the notches on both sides of the I-shaped plate (63) through sliding rails; the ends of the I-shaped plate (63) and the two support plates (64) on the front and rear sides away from the connecting rod (61) are fixedly connected to spring buffer plates (65); The cargo limiting structure (6) further comprises a roller (66) fixedly connected to one side of the cross slide (48) close to the I-shaped plate (63), the roller (66) being in close contact with one side of the connecting rod (61), and one end of the support plates (64) on both sides close to the support column (43) being fixedly connected to a spring pull rod fixedly connected to the support column (43); The rear anti-collision structure (3) comprises a storage groove (33) provided at the rear portion of the upper end of the cargo platform (2); a cover plate (32) is rotatably connected to the inner surface of the storage groove (33) in a left-right symmetrical manner; two ends of the two cover plates (32) close to each other are fixedly connected to two cables (35) symmetrically distributed up and down; an elastic buffer net (36) is set up in a rectangular area formed by the two cables (35) and the two cover plates (32); and an elastic pull rope (34) wound around the two cables (35) is fixedly connected to the lower portion of the inner surface of the storage groove (33).

2. The anti-collision device for an electric transport vehicle according to claim 1, characterized in that: The unfolding wall assembly (51) comprises a rectangular block (512), one end of the rectangular block (512) close to the central slider (53) is fixedly connected to the multi-stage telescopic rod (511), the outer surface of each stage of the telescopic rod of the multi-stage telescopic rod (511) is fixedly connected to a second fixed block (513), the piston rod at the end of the multi-stage telescopic rod (511) is fixedly connected to the central slider (53), the rectangular block (512) close to the middle of the support column (43) is fixedly connected to the support column (43), and the rectangular block (512) away from the middle of the support column (43) is slidably connected to the inner surface of the limit groove (46).

3. The anti-collision device for an electric transport vehicle according to claim 2, characterized in that: The anti-collision component (52) comprises a chain plate one (523) symmetrically distributed in the upper and lower directions and fixedly connected to two fixed blocks two (513) in the same vertical direction; the inner surfaces of the two chain plates one (523) are both symmetrically rotatably connected to support rods (521) on the left and right; the ends of the two support rods (521) on the same side that are close to each other are commonly fixedly connected to an anti-collision pad (522); the sides of a plurality of support rods (521) away from the chain plate one (523) are all rotatably connected to a chain plate two (524) rotatably connected to the next group of support rods (521); and the inner surfaces of the two chain plates one (523) in the same vertical direction and the inner surface of the fixed block two (513) are commonly slidably connected to a limiting rod (525).

4. The anti-collision device for an electric transport vehicle according to claim 1, characterized in that: The rear anti-collision structure (3) further comprises a transmission gear set (31) transmission-connected to the cover plate (32); a mounting groove (23) for mounting the transmission gear set (31) is provided on the rear side of the cargo platform (2); the transmission gear set (31) comprises two bevel gear sets connected via a transmission shaft; an input gear of the transmission gear set (31) is transmission-connected to a threaded rod (41); and an output gear of the transmission gear set (31) is transmission-connected to a central shaft of the cover plate (32).

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