Lifting type tray conveyor for forklift carrying

Abstract

The invention discloses a lifting type tray conveyor for forklift carrying, and relates to the technical field of lifting type tray conveyors, the lifting type tray conveyor comprises multiple rows of horizontal conveying lines, the multiple rows of horizontal conveying lines share one movable supporting table frame body, and the outer wall of the movable supporting table frame body is provided with material moving openings corresponding to the horizontal conveying lines; a positioning sliding rail is arranged on the inner wall of the movable supporting table frame body and composed of a vertical rail body and an inclined rail body. A movable supporting table is arranged in the movable supporting table frame body, a sliding base is arranged on the outer wall of the movable supporting table, and the sliding base slides in the positioning sliding rail. Through cooperation of the sliding rails and the sliding seats, the movable supporting table rotates along with the upward moving process, and multi-connection of different-angle horizontal conveying lines on different layers is achieved through rotation of the movable supporting table; in addition, the movable supporting table frame body and the movable supporting table are both circular truncated cones, a structural foundation is provided for upward movement and rotation of the movable supporting table, and a square structure in the prior art cannot provide the structural foundation.

Description

Technical Field

[0001] The invention relates to the technical field of lifting pallet conveyors, and in particular to a lifting pallet conveyor used for forklift transportation. Background Art

[0002] A lifting pallet conveyor is a machine that conveys pallets vertically, especially used in the logistics industry. The pallets are often pallet structures with support bars at the bottom, which makes it convenient to use with forklifts. Existing lifting pallet conveyors can load multiple rows of horizontal conveyor lines in the vertical direction, but they can only load multiple rows of horizontal conveyor lines on the same vertical plane, and cannot convey horizontal conveyor lines at different angles at different levels, which limits the spatial layout of the horizontal conveyor lines. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the lifting pallet conveyor in the prior art cannot realize the conveying of horizontal conveying lines of different angles at different levels, and to propose a lifting pallet conveyor for forklift transportation.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A lifting pallet conveyor for forklift handling, comprising a plurality of rows of horizontal conveying lines, the plurality of rows of horizontal conveying lines sharing a movable support frame, the outer wall of the movable support frame being provided with a material transfer opening corresponding to the horizontal conveying lines; The inner wall of the movable support frame is provided with a positioning slide rail, and the positioning slide rail is composed of a vertical rail and an inclined rail; A mobile support is arranged in the mobile support frame, a slide is arranged on the outer wall of the mobile support, and the slide slides in the positioning slide rail, and when the slide slides along the inclined rail, the mobile support rotates; The movable support platform frame body drives the movable support platform to move up and down along the inner wall of the movable support platform frame body through the lifting structure.

[0005] Preferably, the mobile support platform comprises a carrying ring and an inner support platform; The inner support platform is a boss structure, and its top rotates in the carrying ring, and the slide seat is arranged on the outer wall of the inner support platform and is located below the carrying ring; The output end of the pulling structure is connected to the carrying ring.

[0006] Preferably, the lifting structure is a steel rope, and there are at least two steel ropes.

[0007] Preferably, a plurality of rotating rollers are provided on the top of the inner support platform, and the plurality of rotating rollers are horizontally arranged, and the ends of the rotating rollers are connected to rotating roller seats, and the rotating roller seats are vertically elastically connected to the top of the inner support platform.

[0008] Preferably, the outer wall of the rotating roller is provided with three carrying parts, the carrying parts are coaxial annular grooves provided on the outer wall of the rotating roller, and the outer diameter of the carrying parts is smaller than the outer diameter of the rotating roller; The outer wall of the carrying portion is provided with an anti-slip layer.

[0009] Preferably, the bottom of the inner support platform is a hollow cavity with a closed outer wall; A plurality of positioning seats are radially extended outward from the hollow cavity, and the positioning seats and the inner support platform are connected by a return spring member. The inner wall of the movable support platform frame is provided with a positioning slot, and the positioning seat can extend and be mounted in the positioning slot; The side wall of the inner support platform is provided with an opening for the movement of the positioning seat, and the height of the opening is greater than the height of the positioning seat.

[0010] Preferably, a connecting seat is provided in the hollow cavity, and at least two vertical top arms are fixed on the connecting seat. The vertical top arms penetrate the top of the inner support platform and move toward the bottom of the rotating roller.

[0011] Preferably, a boss driven by a motor is provided in the hollow cavity; The outer wall of the boss is provided with a contact surface, an initial surface and a transition slope, the contact surface and the initial surface are arc-shaped, the transition slope connects the contact surface and the initial surface, and the boss is located at the center of the plurality of positioning seats, and the contact surface of the boss actuates the positioning seat to extend outward; A driving wedge is provided on the bottom of the connecting seat and the positioning seat, and the inclined surfaces of the two driving wedges are arranged opposite to each other; Positioning wedges are provided on the inner wall of the positioning slot and the positioning seat, and the inclined surfaces of the two positioning wedges are arranged opposite to each other.

[0012] Preferably, a driving slide is slidably arranged in the vertical top arm via a force storage spring member, a friction layer is arranged on the outer wall of the driving slide, a driving plate is commonly connected to the bottoms of a plurality of the driving slides, and the driving plate is located in the hollow cavity; A driving rod is eccentrically arranged on the top of the boss, and the driving plate moves horizontally after being actuated by the driving rod.

[0013] Preferably, an abutment portion is provided on the outer wall of the driving plate, the driving rod contacts the abutment portion, the length of the abutment portion is at least half of the length of the driving plate, and the outer wall of the abutment portion includes an inclined abutment surface and a flat abutment surface.

[0014] The beneficial effects of the present invention are: The present invention realizes the accompanied rotation of the mobile platform during the upward movement process through the cooperation of the slide rail and the slide seat, and realizes multiple connections to horizontal conveyor lines of different angles at different levels through the rotation of the mobile platform; in addition, the mobile platform frame and the mobile platform are both round tables, which provides a structural basis for the upward rotation of the mobile platform, while the square structure in the prior art cannot provide such a structural basis.

[0015] The present invention also moves downward after the rotating roller is squeezed by the forklift pallet, so that the rotating rollers on the front and rear sides of the forklift pallet that has moved downward limit the forklift pallet front and rear; in addition, by arranging a carrying part on the rotating roller corresponding to the supporting bar at the bottom of the forklift pallet, the left and right limit of the forklift pallet is achieved, thereby ensuring the stability of the forklift pallet during the upward movement and rotation process.

[0016] The present invention also ensures the stability of the movable support when loading materials onto the horizontal conveying line through the cooperation of the positioning seat and the positioning slot.

[0017] The invention also releases the front and rear limits of the forklift pallet by means of the vertical top arm moving upward, and then uses the driving slide to drive the rotating roller to rotate, so that the forklift pallet on the rotating roller is transferred to the horizontal conveying line. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram and positional relationship diagram of a horizontal conveying line and a movable support frame in a lifting pallet conveyor for forklift handling proposed by the present invention; Figure 2 This is a structural schematic diagram of a movable support platform in a lifting pallet conveyor for forklift transportation proposed by the present invention; Figure 3 This is a structural diagram and position relationship diagram of a load-bearing ring and an inner support platform in a lifting pallet conveyor for forklift handling proposed by the present invention; Figure 4 This is an internal structural diagram of a movable support platform in a lifting pallet conveyor for forklift transportation proposed by the present invention; Figure 5 A position state diagram of a positioning seat and a positioning slot in an initial state of a positioning seat in a lifting pallet conveyor for forklift handling proposed by the present invention; Figure 6 This is a position state diagram of the positioning seat and the positioning slot after the positioning seat in the lifting pallet conveyor for forklift handling proposed by the present invention is impacted by the impact surface; Figure 7 A diagram showing the position states of a positioning seat and a positioning slot in a lifting pallet conveyor for forklift handling proposed by the present invention after the positioning seat is abutted by a positioning wedge; Figure 8A structural diagram and positional relationship diagram of a connecting seat and a boss in a lifting pallet conveyor for forklift handling proposed by the present invention; Fig. 9 This is a top structural diagram of a connecting seat in a lifting pallet conveyor for forklift transportation proposed by the present invention; Fig.10 A structural diagram of a boss in a lifting pallet conveyor for forklift handling proposed by the present invention; Fig.11 A structural diagram and positional relationship diagram of a connecting seat and a driving plate in a lifting pallet conveyor for forklift handling proposed by the present invention; Fig.12 A state diagram of a driving slide seat in a vertical top arm when a driving rod of a lifting pallet conveyor for forklift handling proposed by the present invention does not abut against an abutment portion; Fig.13 This is a position state diagram of the driving slide in the vertical top arm when the driving rod of the lifting pallet conveyor for forklift handling proposed by the present invention just contacts the inclined contact surface; Fig.14 The present invention is a diagram showing the position state of a driving slide in a vertical top arm when a driving rod of a lifting pallet conveyor for forklift handling contacts a flat abutment surface.

[0019] In the figure: 1, horizontal conveyor line; 2, movable support frame; 200, positioning slot; 3, material transfer port; 4, movable support; 400, bearing ring; 401, inner support; 4010, opening; 5, positioning slide rail; 500, vertical rail; 501, inclined rail; 6, slide seat; 7, rotating roller; 700, carrying part; 8, positioning seat; 9, connecting seat; 10, vertical top arm; 11, boss; 110, resistance surface; 111, initial surface; 112, transition inclined surface; 12, reset spring member; 13, driving wedge block; 14, positioning wedge block; 15, driving slide seat; 16, driving plate; 17, storage spring member; 18, resistance part; 180, inclined resistance surface; 181, flat resistance surface; 19, driving rod; 20, rotating roller seat. DETAILED DESCRIPTION

[0020] Reference Figure 1-Figure 14 A lifting pallet conveyor for forklift handling consists of multiple rows of horizontal conveyor lines 1 and a mobile pallet frame 2, wherein the multiple rows of horizontal conveyor lines 1 are staggered up and down on the outer wall of the mobile pallet frame 2, and the multiple horizontal conveyor lines 1 are arranged at different positions of the mobile pallet frame 2.

[0021] Furthermore, the horizontal conveyor line 1 is a prior art. In some embodiments, the horizontal conveyor line 1 is composed of a plurality of guide rollers, which are equidistantly arranged horizontally, and are driven by the same conveying chain. Preferably, a sprocket is fixedly provided at the end of the guide roller, which rotates with the conveying chain to brake the plurality of guide rollers to rotate synchronously and at the same speed, thereby conveying the pallets placed on the guide rollers.

[0022] Reference Figure 1 The movable support frame 2 is a ring structure with a closed top and an open bottom, and a material transfer port 3 is provided on its outer wall. The position of the material transfer port 3 corresponds to the feeding end of the horizontal conveyor line 1. The pallet is transferred from the movable support frame 2 to the horizontal conveyor line 1 through the material transfer port 3.

[0023] In this embodiment, a mobile support 4 is provided in the mobile support frame 2, and the mobile support 4 moves up and down along the inner wall of the mobile support frame 2, so as to transfer the pallet carried thereon to the material transfer port 3 of the horizontal conveyor line 1 to be transported.

[0024] It should be added that: the movable support frame 2 can rotate, so as to change the position of the material transfer port 3 as needed. Furthermore, in order to increase the degree of automation, the rotation of the movable support frame 2 can be driven by an external motor.

[0025] Furthermore, in this embodiment, the driving force for the mobile platform 4 to move up and down is realized by a pulling structure. Specifically, the pulling structure is arranged between the mobile platform 4 and the closed top of the mobile platform frame 2. In some embodiments, the pulling structure is any one of a cylinder and a steel rope. When the pulling structure is a steel rope, a steel rope hanging ear is arranged on the top of the mobile platform 4, and a wire reel driven by a motor is arranged on the top of the mobile platform frame 2. The steel rope is wound on the wire reel. When the wire reel is wound around the steel rope, the mobile platform 4 moves upward along the mobile platform frame 2; conversely, when the wire reel releases the steel rope, the mobile platform 4 moves downward along the mobile platform frame 2. In order to ensure the uniformity of the force of the steel rope on the mobile platform 4, there are at least two steel ropes, and the steel rope hanging ears are evenly distributed on the mobile platform 4 at equal distances, so that the positions of the force points of the steel ropes on the mobile platform 4 are evenly distributed. When the stretching structure is a cylinder, the cylinder is fixed to the closed top of the movable support frame 2, and the output end of the cylinder is fixed to the movable support 4.

[0026] Reference Figure 1 and Figure 2 In some embodiments, during the up and down movement of the mobile platform 4, the discharge end of the mobile platform 4 corresponds to the position of the material transfer port 3 at different positions, and a rotating structure of the mobile platform 4 is provided on the outer wall of the mobile platform 4 and the inner wall of the mobile platform frame 2, and the structure is provided as follows: First, the movable support platform 4 is a cylindrical structure, and a slide seat 6 is provided on its outer wall, wherein the slide seat 6 is preferably cylindrical, and its end is a hemispherical structure; Secondly, the inner wall of the mobile support frame 2 is provided with a positioning rail 5, the cross section of the positioning rail 5 is a U-shaped structure, and the slide 6 slides in the U-shaped groove of the positioning rail 5, and the outer wall of the slide 6 slides with the inner wall of the U-shaped groove of the positioning rail 5, and the sliding of the slide 6 is constrained by the positioning rail 5. Further, the positioning rail 5 is composed of vertical rails 500 and inclined rails 501 distributed at intervals.

[0027] Based on the setting of the slide 6 and the positioning slide rail 5, the working principle of the correspondence between the discharge end of the mobile platform 4 and the position of the material transfer port 3 at different positions during the up and down movement of the mobile platform 4 is as follows: when the slide 6 slides along the inclined rail 501, causing the mobile platform 4 to rotate, and the mobile platform 4 moves up and down, the mobile platform 4 rotates, thereby rotating to the material transfer port 3 at different layers and different angles; when the slide 6 slides along the vertical rail 500, the mobile platform 4 moves up and down, and the mobile platform 4 realizes vertical linear movement without deflection. At this time, the height of the mobile platform 4 and the horizontal conveyor line 1 can be adjusted to be aligned, which is convenient for pallet transfer.

[0028] Furthermore, in order to avoid affecting the use of the lifting structure after the mobile support 4 deflects during the up and down movement, for example, when the lifting structure is a steel rope, the rotation of the mobile support 4 will cause the steel rope to be entangled. For this reason, the mobile support 4 is further improved. The improvement is that the mobile support 4 adopts a sub-assembly structure. Preferably, the mobile support 4 includes a carrying ring 400 and an inner support 401.

[0029] Among them, the bearing ring 400 is rotatably sleeved on the outer wall of the inner support platform 401, and the output end of the lifting structure is connected to the bearing ring 400. Specifically, the output ends of the steel rope hook and the cylinder are arranged at the top of the bearing ring 400. In addition, the inner support platform 401 is a boss structure, and its top is rotated in the bearing ring 400. Preferably, in order to realize that the bearing ring 400 can achieve a bearing effect on the inner support platform 401, a bearing flange is arranged on the top of the outer wall of the inner support platform 401, and the bearing flange is mounted on the top of the bearing ring 400 to ensure that the bearing ring 400 brakes the inner support platform 401 to move up and down synchronously under the drive of the lifting structure, and does not affect the rotation of the inner support platform 401 relative to the bearing ring 400.

[0030] It should be noted that the slide 6 is arranged on the outer wall of the inner support 401 and is located below the carrying ring 400. The slide 6 and the lifting structure are staggered and the slide 6 is located below the lifting structure to avoid the setting position of the lifting structure affecting the movement position of the slide 6 and the positioning rail 5, and further avoid the driving mode of the lifting structure and the movement mode of the slide 6 causing motion interference to each other.

[0031] Based on the structural setting of the inner support platform 401, this embodiment also discloses a pallet positioning structure, which is a bearing structure for a forklift to place the pallet. The structure is composed of multiple rotating rollers 7. Furthermore, when the rotating rollers 7 rotate, the pallet mounted on the top of the rotating rollers 7 is transferred.

[0032] Based on the structural setting of the rotating roller 7, this embodiment also discloses a structure for positioning the pallet front and back after the pallet is placed on a forklift. The structure is set as follows: A plurality of rotating rollers 7 are arranged horizontally, and the ends of the rotating rollers 7 are connected to rotating roller seats 20, wherein the rotating roller seats 20 are provided with rotating grooves for rotating the rotating rollers 7, and are used for rotating the rotating rollers 7. In addition, the rotating roller seats 20 are vertically elastically connected to the top of the inner support platform 401, wherein the structure of the vertical elastic movement of the rotating roller seats 20 is arranged as follows: the top of the inner support platform 401 is provided with a receiving groove for the vertical movement of the rotating roller seats 20, and the bottom of the rotating roller seats 20 and the bottom of the receiving groove are connected by a spring; In summary, after the forklift places the pallet on the rotating roller 7, the carried rotating roller 7 is affected by the gravity of the pallet, causing the carried rotating roller 7 to be forced to move downward, so that the carried rotating roller 7 is positioned lower than the other rotating rollers 7, and the front and rear sides of the pallet are limited by the rotating rollers 7 that are higher on the front and rear sides of the pallet.

[0033] In addition, the present embodiment also discloses a structure for limiting the left and right positions of the pallet, which is a carrying part 700 provided on the outer wall of the rotating roller 7. The carrying part 700 is a coaxial annular groove provided on the outer wall of the rotating roller 7, and the outer diameter of the carrying part 700 is smaller than the outer diameter of the rotating roller 7. Based on the structural composition of the pallet in the prior art, three support bars are provided at the bottom, so that there is a height difference of the support bars at the top of the pallet, which is easy for a forklift to insert. Furthermore, three carrying parts 700 are provided, which are used in the positions of the three support bars at the bottom of the pallet. When the forklift is placed on the rotating roller 7, the inner wall of the coaxial annular groove is used to limit the three support bars at the bottom of the pallet in the left and right positions.

[0034] Furthermore, this embodiment limits the front and rear sides of the pallet through the higher rotating rollers 7 on both sides of the pallet, and limits the support bars at the bottom of the pallet through the carrying part 700, thereby further limiting the left and right sides of the pallet, thereby ensuring the stability of the pallet during the transfer process with the mobile platform 4 after it leaves the forklift.

[0035] In addition, an anti-skid layer is provided on the outer wall of the carrying portion 700. Based on the setting of the anti-skid layer, the stability of the pallet can be ensured when the pallet is in a stable state; when the rotating roller 7 rotates, the anti-skid layer can increase the friction between the pallet and the bottom support bar, causing the pallet to move horizontally as the rotating roller 7 rotates.

[0036] Preferably, the anti-slip layer may be a rubber or felt layer structure with burrs.

[0037] In this embodiment, a structure for positioning the inner support platform 401 is also disclosed. Based on the setting of the structure, when the inner support platform 401 rotates, the rotating roller 7 is arranged parallel to the horizontal conveying line 1 with the belt conveyor, so that the inner support platform 401 is stable. The structure is set as follows: First, the bottom of the inner support platform 401 is a hollow cavity with a closed outer wall, and the hollow cavity provides an installation space for the structure of the inner support platform 401; Secondly, multiple positioning seats 8 are radially extended outward in the hollow cavity, wherein the positioning seats 8 are strip-shaped structures; further, in order to cooperate with the positioning seats 8, the movable support frame 2 supports the inner support 401, and the inner wall of the movable support frame 2 is provided with a positioning slot 200, and the positioning seat 8 can be extended and mounted in the positioning slot 200. When the positioning seat 8 is mounted in the positioning slot 200, the inner support 401 is supported by the positioning seat 8; Furthermore, the side wall of the inner support platform 401 is provided with an opening 4010 for the positioning seat 8 to move, and the opening 4010 is used for the positioning seat 8 to slide outward; Finally, the positioning seat 8 and the inner support platform 401 are also connected by a return spring member 12. In some embodiments, the return spring member 12 is a return spring, wherein the two ends of the return spring are respectively connected to the outer wall of the positioning seat 8 and the inner wall of the hollow cavity, and are used for returning the positioning seat 8 after it is separated from the positioning slot 200. In summary, in this embodiment, when positioning the movable platform 4 , the positioning seat 8 is extended radially outward so that it is mounted on the positioning slot 200 , thereby ensuring the stability of the movable platform 4 .

[0038] Reference Figure 2-Figure 11 The present embodiment also discloses a structure for facilitating unloading of pallets, which is used to push upward the rotating roller 7 that is pressed downward by the pallet, thereby releasing the front and rear limit of the forklift pallet, so that the forklift pallet passes through the material transfer port 3 and is transported to the horizontal conveyor line 1 as the rotating roller 7 rotates. Specifically, the structure is set as follows: A connecting seat 9 is provided in the hollow cavity, and at least two vertical top arms 10 are fixed on the connecting seat 9. The vertical top arms 10 pass through the top of the inner support platform 401 and move below the rotating roller 7. Furthermore, the process of the vertical top arm 10 releasing the front and rear limits of the forklift pallet is as follows: when the connecting seat 9 moves upward, the vertical top arm 10 moves toward the rotating roller 7, thereby completely lifting the rotating roller 7. The fully lifted rotating rollers 7 are located in the same horizontal plane, that is, the front and rear limits of the forklift pallet are released. At this time, the forklift pallet is transferred to the horizontal conveyor line 1 as the rotating roller 7 rotates.

[0039] This embodiment also discloses a synchronous driving structure for the radial outward movement of the positioning seat 8 and the upward movement of the connecting seat 9, which is composed of a boss 11 driven by a rotating motor.

[0040] First, refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig.10 The shape of the boss 11 is set as follows: the wall of the boss 11 is provided with a contact surface 110, an initial surface 111 and a transition slope 112. Further, the contact surface 110 and the initial surface 111 are arc-shaped, and the arc radius of the initial surface 111 is smaller than the arc radius of the contact surface 110, the transition slope 112 connects the contact surface 110 and the initial surface 111, and the boss 11 is located at the center of the plurality of positioning seats 8, and the contact surface 110 of the boss 11 actuates the positioning seats 8 to extend outward.

[0041] Secondly, refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.11 A driving wedge 13 is provided on the bottom of the connecting seat 9 and the positioning seat 8, and the inclined surfaces of the two driving wedges 13 are arranged opposite to each other, wherein the inclined surface of the driving wedge 13 on the connecting seat 9 faces the inside of the hollow cavity. When the positioning seat 8 moves radially outward, the inclined surface of the driving wedge 13 on the positioning seat 8 contacts the inclined surface of the driving wedge 13 on the connecting seat 9, causing the connecting seat 9 to move vertically upward, thereby pushing the rotating roller 7 to the same horizontal plane through the vertical top arm 10. Further, along with the rotating roller 7, the forklift pallet is transferred and transported.

[0042] This embodiment also discloses a structure for driving the rotating roller 7 to rotate. The structure is completed based on the setting of the boss 11. Further, the structure is set as follows: First, a driving slide 15 slides inside the vertical top arm 10, and a friction layer is provided on the outer wall of the driving slide 15, wherein the friction layer is preferably a rubber layer, and by increasing the friction between the surface of the driving slide 15 and the outer wall of the rotating roller 7, the driving slide 15 is driven horizontally to actuate the rotating roller 7 to rotate. In addition, the length of the driving slide 15 is less than or equal to half of the horizontal length of all the rotating rollers 7, so as to ensure that the driving slide 15 has sufficient linear motion space, thereby actuating the rotating roller 7 to rotate. It should be noted that the horizontal movement direction of the driving slide 15 is set in the opposite direction to the movement direction of the tray.

[0043] The bottoms of the plurality of driving slides 15 are commonly connected to a driving plate 16 , wherein the driving plate 16 and the driving slides 15 are connected via connecting ribs, and the driving plate 16 is located in the hollow cavity.

[0044] A driving rod 19 is eccentrically provided on the top of the boss 11. The driving plate 16 moves horizontally after being actuated by the driving rod 19. When the boss 11 rotates continuously, the driving rod 19 follows the rotation and intermittently abuts against the driving plate 16, thereby causing the driving slide 15 to move horizontally. The friction between the rotating roller 7 and the driving slide 15 further actuates the rotating roller 7 to rotate, thereby rotating the forklift pallet forward to the horizontal conveyor line 1.

[0045] This embodiment also discloses a connection structure between the positioning seat 8 and the inner support platform 401 to avoid the situation where the boss 11 continues to rotate and the positioning seat 8 is retracted when the positioning seat 8 positions the inner support platform 401. The improved structure is as follows: First, the height of the opening 4010 and the positioning slot 200 is greater than the height of the positioning seat 8, ensuring that the positioning seat 8 can further slide up and down in the opening 4010 and the positioning slot 200; Secondly, positioning wedges 14 are provided on the inner wall of the positioning slot 200 and the positioning seat 8, and the inclined surfaces of the two positioning wedges 14 are arranged opposite to each other; In summary, based on the improvement of the positioning structure of the inner support platform 401, its working process is as follows: when the inner support platform 401 moves upward to the specified position through the lifting structure, the boss 11 rotates, causing the positioning seat 8 to extend into the positioning slot 200; then, the inner support platform 401 moves downward a certain distance, and when the inner support platform 401 moves downward, the positioning wedge block 14 on the positioning seat 8 moves downward, and when the inclined surface of the positioning wedge block 14 on the positioning seat 8 contacts the inclined surface of the positioning wedge block 14 on the inner wall of the positioning slot 200, it moves downward with the inner support platform 401, causing the positioning seat 8 to continue to move outward until the bottom surface of the positioning seat 8 is mounted on the inner wall surface of the positioning slot 200, at this time, the horizontal surface of the rotating roller 7 and the horizontal conveyor line 1 to be transported are located on the same plane.

[0046] It should be added that: a T-shaped rod slides up and down on the inner wall of the opening 4010, and a T-shaped slot is set on the outer wall of the positioning seat 8 to slide with the T-shaped rod. The movement of the positioning seat 8 is constrained by the cooperation of the T-shaped rod and the T-shaped slot, so that the positioning seat 8 will not tilt when moving in the horizontal direction.

[0047] Finally, the present embodiment also discloses a structure for driving the driving plate 16, which causes the driving plate 16 to move in two stages: stage one: driving the slide 15 to move horizontally toward the top of the protruding vertical top arm 10; stage two: driving the slide 15 to move horizontally toward the top of the lower vertical top arm 10. During the movement in stage one and stage two, the movement of the driving plate 16 is opposite. Specifically, in stage one, the driving plate 16 moves horizontally in the opposite direction of the forklift pallet; and in stage one, the driving plate 16 returns to the initial state to prepare for the next time the driving plate 16 drives the forklift pallet. Preferably, the structure is set as follows: Reference Figure 8 , Fig.11 , Fig.12 , Fig.13 and Fig.14 The outer wall of the driving plate 16 is provided with a resisting portion 18, the driving rod 19 contacts the resisting portion 18, the length of the resisting portion 18 is at least half of the length of the driving plate 16, and the outer wall of the resisting portion 18 includes an inclined resisting surface 180 and a flat resisting surface 181; In summary, the matching relationship between the abutment portion 18 and the driving rod 19 is as follows: When the driving rod 19 rotates with the boss 11, causing the driving rod 19 to contact the inclined abutment surface 180, the driving plate 16 is subjected to the upward abutment force of the driving rod 19, causing the driving plate 16 to move upward, thereby increasing the squeezing force between the driving slide 15 and the rotating roller 7, further increasing the friction force, so that the driving slide 15 moves horizontally, and the forklift pallet is driven to move better; when the forklift pallet is light in weight, the top of the driving rod 19 can pass through the inclined abutment surface 180 and contact the flat abutment surface 181. At this time, the driving slide 15 protrudes from the vertical top arm 10, so that the driving slide 15 is completely in contact with the rotating roller 7, which facilitates the rotation of the rotating roller 7; When the driving rod 19 is separated from the abutment portion 18, the driving slide 15 is retracted into the vertical top arm 10, and at this time, the driving slide 15 moves to the initial position. At this time, the rotating roller 7 is mounted on the top of the vertical top arm 10, and the driving slide 15 is separated from the rotating roller 7, and the rotating roller 7 cannot be driven to rotate, and further the forklift cannot be driven to push the plate to transfer.

[0048] It should be added that: in order to ensure that the driving slide 15 automatically resets to the initial state, the vertical top arm 10 and the driving slide 15 are connected by a force storage spring member 17. Preferably, the force storage spring member 17 is two groups of springs, the first group of springs is used to drive the slide 15 to reset in the horizontal direction, and the second group of springs is used to drive the slide 15 to reset in the vertical direction. In some embodiments, a movable groove for driving the slide 15 to move is provided at the top of the vertical top arm 10, and the two ends of the first group of springs are connected to the inner wall of the movable groove and the outer wall of the driving slide 15; in addition, the inner wall of the movable groove is connected to a slider through a telescopic member, and the slider is preferably T-shaped. The driving slide 15 is provided with a slide groove for the slider to slide, and the slide groove is also T-shaped accordingly. The cooperation of the slider and the telescopic member ensures that the driving slide 15 moves up and down while ensuring horizontal movement, and the second group of springs is sleeved outside the telescopic member, and its two ends are connected to the inner wall of the movable groove and the outer wall of the slider.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting pallet conveyor for forklift handling, comprising a plurality of horizontal conveyor lines (1), characterized in that: The plurality of rows of the horizontal conveying lines (1) share a common movable support frame (2), and the outer wall of the movable support frame (2) is provided with a material transfer port (3) corresponding to the horizontal conveying line (1); The inner wall of the movable support frame (2) is provided with a positioning slide rail (5), and the positioning slide rail (5) is composed of a vertical rail (500) and an inclined rail (501); A mobile support (4) is provided in the mobile support frame (2), and a slide seat (6) is provided on the outer wall of the mobile support (4). The slide seat (6) slides in the positioning slide rail (5). When the slide seat (6) slides along the inclined rail (501), the mobile support (4) rotates. The movable support platform frame (2) drives the movable support platform (4) to move up and down along the inner wall of the movable support platform frame (2) through the lifting structure.

2. The lifting pallet conveyor for forklift transportation according to claim 1, characterized in that: The movable support platform (4) comprises a carrying ring (400) and an inner support platform (401); The inner support platform (401) is in the form of a boss structure, and its top portion rotates in the carrying ring (400); the slide seat (6) is arranged on the outer wall of the inner support platform (401) and is located below the carrying ring (400); The output end of the pulling structure is connected to the supporting ring (400).

3. The lifting pallet conveyor for forklift transportation according to claim 1, characterized in that: The lifting structure is a steel rope, and there are at least two steel ropes.

4. The lifting pallet conveyor for forklift transportation according to claim 2, characterized in that: A plurality of rotating rollers (7) are provided on the top of the inner support platform (401), and the plurality of rotating rollers (7) are arranged horizontally. The ends of the rotating rollers (7) are connected to rotating roller seats (20), and the rotating roller seats (20) are vertically elastically connected to the top of the inner support platform (401).

5. The lifting pallet conveyor for forklift transportation according to claim 4, characterized in that: The outer wall of the rotating roller (7) is provided with three carrying parts (700), the carrying parts (700) are coaxial annular grooves provided on the outer wall of the rotating roller (7), and the outer diameter of the carrying parts (700) is smaller than the outer diameter of the rotating roller (7); The outer wall of the carrying portion (700) is provided with an anti-slip layer.

6. The lifting pallet conveyor for forklift transportation according to claim 4, characterized in that: The bottom of the inner support platform (401) is a hollow cavity with a closed outer wall; A plurality of positioning seats (8) are radially extended outwardly from the hollow cavity, and the positioning seats (8) and the inner support platform (401) are connected via a return spring member (12); a positioning slot (200) is provided on the inner wall of the movable support platform frame (2), and the positioning seat (8) can extend and be mounted in the positioning slot (200); The side wall of the inner support platform (401) is provided with an opening (4010) for the movement of the positioning seat (8), and the height of the opening (4010) is greater than the height of the positioning seat (8).

7. The lifting pallet conveyor for forklift transportation according to claim 6, characterized in that: A connecting seat (9) is provided in the hollow cavity, and at least two vertical top arms (10) are fixed on the connecting seat (9). The vertical top arms (10) pass through the top of the inner support platform (401) and move toward the bottom of the rotating roller (7).

8. The lifting pallet conveyor for forklift transportation according to claim 7, characterized in that: A boss (11) driven by a motor is arranged in the hollow cavity; The outer wall of the boss (11) is provided with a contact surface (110), an initial surface (111) and a transition slope (112); the contact surface (110) and the initial surface (111) are in the form of arcs; the transition slope (112) connects the contact surface (110) and the initial surface (111); the boss (11) is located at the center of a plurality of the positioning seats (8); the contact surface (110) of the boss (11) actuates the positioning seats (8) to extend outwards; A driving wedge (13) is provided on the bottom of the connecting seat (9) and the positioning seat (8), and the inclined surfaces of the two driving wedges (13) are arranged opposite to each other; A positioning wedge (14) is provided on the inner wall of the positioning slot (200) and the positioning seat (8), and the inclined surfaces of the two positioning wedges (14) are arranged opposite to each other.

9. The lifting pallet conveyor for forklift transportation according to claim 8, characterized in that: A driving slide (15) is slidably disposed in the vertical top arm (10) via a force storage spring member (17); an outer wall of the driving slide (15) is provided with a friction layer; a driving plate (16) is commonly connected to the bottoms of a plurality of the driving slides (15); and the driving plate (16) is located in the hollow cavity; A driving rod (19) is eccentrically arranged on the top of the boss (11), and the driving plate (16) moves horizontally after being actuated by the driving rod (19).

10. The lifting pallet conveyor for forklift transportation according to claim 9, characterized in that: The outer wall of the driving plate (16) is provided with a resistance portion (18), the driving rod (19) contacts the resistance portion (18), the length of the resistance portion (18) is at least half the length of the driving plate (16), and the outer wall of the resistance portion (18) comprises an inclined resistance surface (180) and a flat resistance surface (181).

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