Multi-section telescopic cargo carrying frame with adjustable spacing and height

Abstract

The utility model relates to the technical field of cargo carrying racks, in particular to a multi-section telescopic cargo carrying rack with adjustable spacing and height, which comprises a lifting mechanism, a supporting plate, a spacing adjusting mechanism, a transverse moving plate, a telescopic driving part and a cargo carrying plate, and the bottom plate surface of the supporting plate is fixed at the lifting end of the lifting mechanism. The distance adjusting mechanism comprises a lead screw mounting seat, a bidirectional lead screw, a lead screw driving part and a longitudinal nut block, the two groups of transverse moving plates comprise bottom plates and sliding battens, the telescopic driving part is horizontally arranged between the two groups of sliding battens, and the two ends of the telescopic driving part are respectively fixed at the side ends of the two oppositely arranged sliding battens; the two cargo carrying plates are connected to the two sets of corresponding sliding battens in a sliding mode respectively, the tops of the two cargo carrying plates can be used for jointly bearing cargoes, and the cargo carrying device is high in automation degree, flexible, changeable, high in freedom degree and capable of being used for storing and taking the cargoes in various three-dimensional automatic warehouses.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo racks, and more particularly to a multi-section telescopic cargo rack with adjustable spacing and height. Background Art

[0002] At present, with the development of the logistics industry, the application of stereoscopic warehouses is becoming more and more extensive. Stereoscopic warehouses occupy a small area and can effectively utilize space. Stereoscopic automatic warehouses, also known as stereoscopic automatic warehousing, are a new concept in logistics warehousing. The use of stereoscopic warehouse equipment can realize the rationalization of warehouse high-rises, storage and retrieval automation, and simplified operation.

[0003] The cargo loading mechanism is used for taking out and storing goods, and is an important mechanism in a three-dimensional automatic warehouse. Each automated three-dimensional warehouse is usually designed with a separate cargo loading mechanism. Different cargo loading mechanisms vary greatly and cannot meet the usage requirements of diverse three-dimensional warehouse scenarios.

[0004] Therefore, how to provide a cargo loading mechanism with a high degree of freedom and applicable to different three-dimensional automatic warehouses is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] Therefore, the purpose of the utility model is to provide a multi-section telescopic loading rack with adjustable spacing and height, so as to solve the technical problem that the existing loading mechanism cannot be used for storing and retrieving goods in different three-dimensional automatic warehouses.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A multi-section telescopic cargo rack with adjustable spacing and height, comprising a lifting mechanism, a support plate, a spacing adjustment mechanism, a transversely movable plate, a telescopic driving unit and a cargo plate; the bottom plate surface of the support plate is fixed to the lifting end of the lifting mechanism; the spacing adjustment mechanism comprises a screw mounting seat, a bidirectional screw, a screw driving unit and a longitudinal nut block, the screw mounting seat is fixed to the top plate surface of the support plate, the bidirectional screw is rotatably connected to the screw mounting seat, the screw driving unit is mounted on the screw mounting seat and is transmission-connected to the bidirectional screw, and the longitudinal nut blocks are divided into two groups and are respectively transmission-connected to opposite threaded sections of the bidirectional screw. ; There are two groups of transverse moving plates and both include a bottom plate and a sliding strip. The sliding strips of the two groups of transverse moving plates are parallel to each other and are slidably connected to the corresponding bottom plates, and the sliding directions of the two groups of sliding strips are perpendicular to the two-way lead screw arrangement. The bottom plates of the two groups of transverse moving plates are respectively fixed on the corresponding two groups of longitudinal nut blocks; The telescopic driving part is horizontally arranged between the two groups of sliding strips and its two ends are respectively fixed on the side ends of the two oppositely arranged sliding strips; There are two cargo boards and they are slidably connected to the two groups of sliding strips respectively, and the tops of the two cargo boards can be used to carry goods together.

[0008] Through the above technical scheme, compared with the prior art, the utility model provides a multi-section telescopic cargo rack with adjustable spacing and height. The height of the cargo board can be adjusted by utilizing a lifting mechanism, and the longitudinal spacing of two transversely movable plates can be adjusted by a spacing adjustment mechanism to adapt to the sizes of different goods. The sliding strips can be extended and expanded transversely through the telescopic driving part to move the cargo board to a designated area. The present invention is easy to operate, has a high degree of automation, is flexible and has a high degree of freedom, and can be used for storing and retrieving goods in a variety of three-dimensional automatic warehouses.

[0009] Preferably, the lifting mechanism includes a fixed base plate, a telescopic lifting tube, a connecting rod, a motor mounting frame and a lifting motor; the telescopic lifting tube includes a fixed tube and a lifting tube, the bottom end of the fixed tube is fixed to the fixed base plate, the outer wall of the lifting tube is threadedly connected to the inner wall surface of the fixed tube, and the upper end of the lifting tube passes through the upper end of the fixed tube; the lower end of the connecting rod is fixedly connected in the lifting tube; the motor mounting frame is fixedly connected to the lower end surface of the support plate; the lifting motor is fixed on the motor mounting frame, and the output shaft of the lifting motor is perpendicular to the support plate and downwardly passes through the motor mounting frame and is fixedly connected to the upper end of the connecting rod.

[0010] The lifting pipe is composed of multiple sections of inner and outer pipe fittings, each section of the pipe fitting is 60 cm high, the pipe opening diameter of the first section of the pipe fitting is the smallest, and the diameter of the pipe opening of the adjacent next section gradually increases, and the pipe opening diameter of the outermost pipe fitting is the largest. The first section of the pipe fitting is located in the innermost layer of the lifting pipe, and the lower end of the connecting rod is fixedly connected to the first section of the pipe fitting, and the adjacent next section of the pipe fitting is sleeved on the previous section of the pipe fitting; the top inner wall of each section of the pipe fitting is provided with an inner clamping ring, and the bottom outer wall is provided with an outer clamping ring. Each pipe fitting is limited by the outer clamping ring and the inner clamping ring of the adjacent next section of the pipe fitting. At the same time, the inner wall of each pipe fitting is processed with threads, and the side wall of the outer clamping ring is processed with threads. The outer clamping ring of each pipe fitting is threadedly connected to the inner wall of the adjacent next section of the pipe fitting; the top inner wall of the fixed pipe is provided with an inner clamping ring, and the inner side wall of the fixed pipe is processed with threads. The outermost pipe fitting in the lifting pipe is threadedly connected to the fixed pipe through the outer clamping ring, and is limited by the outer clamping ring and the inner clamping ring of the fixed pipe.

[0011] When the output shaft of the lifting motor rotates, it drives the connecting rod to rotate. At the same time, the first section of the lifting pipe fixedly connected to the connecting rod spirals up in the second section of the pipe through the outer clamping ring at the bottom, and is clamped and limited by the outer clamping ring and the inner clamping ring of the second section of the pipe and no longer rotates, transmitting the torque to the second section of the pipe. The second section of the pipe that obtains the torque starts to rotate, and the remaining pipes are driven in turn. The outermost pipe in the lifting pipe is limited in rising by the outer clamping ring and the inner clamping ring of the fixed pipe.

[0012] The motor mounting frame includes a top plate, a mounting bottom plate and a support rod. The top plate is provided with an assembly hole. Bolts pass through the assembly hole to fix the top plate to the lower end surface of the support plate. The top end of the support rod is fixed to the lower plate surface of the top plate. The mounting bottom plate is fixed to the bottom end of the support rod parallel to the top plate. The fixed end of the lifting motor is fixed to the upper plate surface of the mounting bottom plate, and its output shaft passes through the mounting bottom plate and is fixedly connected to the upper end of the connecting rod. When the lifting tube rises, the motor mounting frame fixedly connected to the lifting motor has an upward trend, and the top plate of the motor mounting frame supports and lifts the support plate.

[0013] Through the above technical solution, the lifting mechanism of the utility model can lift or lower the support plate, so as to facilitate adjusting the cargo plate to a specified height.

[0014] Preferably, it also includes a lifting support part, which is multiple and is arranged around the circumference of the lifting mechanism below the support plate. The lifting support parts each include a support base plate, a telescopic support tube, a support connecting rod and a rod support. The telescopic support tube includes a fixed support tube and a support lifting tube. The bottom end of the fixed support tube is fixed to the support base plate, the support lifting tube is slidably connected in the fixed support tube and passes through the upper end of the fixed support tube, the lower end of the support connecting rod is threadedly connected in the support lifting tube, the rod support is fixedly connected to the lower end surface of the support plate, and the upper end of the support connecting rod is fixedly connected to the rod support.

[0015] The supporting lifting pipe also includes a plurality of pipes connected inside and outside. Each pipe of the supporting lifting pipe corresponds to each pipe of the lifting pipe and has the same height. The diameter of the pipes of the supporting lifting pipe increases from inside to outside. The first pipe is located in the innermost layer. The lower end of the supporting connecting rod is fixedly connected to the first pipe, and the next pipe is sleeved on the previous pipe.

[0016] A ball assembly is fixed on the bottom outer wall of each pipe fitting, and the ball assembly includes a spring sleeve, a spring and a ball. The open end of the spring sleeve is welded to the outer wall of the pipe fitting, and a ball hole is opened on the cylinder wall of the closed end of the spring sleeve. The aperture of the ball hole is smaller than the diameter of the ball. The spring and the ball are both arranged in the spring sleeve. The spring is in a compressed state and one end thereof abuts against the side wall of the pipe fitting, and the other end abuts against the ball. The side of the ball facing the ball hole partially leaks out of the spring sleeve. The top inner wall of each pipe fitting is provided with an annular groove arranged around the pipe fitting, and the annular groove is clamped with the part of the ball exposed from the spring sleeve. The top inner wall of the fixed support tube is also provided with a support tube annular groove arranged around the fixed support tube, and the support tube annular groove is clamped with the exposed part of the ball of the outermost pipe fitting in the support lifting tube.

[0017] When the support plate rises, it drives the supporting connecting rod to rise. At the same time, the first section of the tube in the telescopic supporting tube fixedly connected to the supporting connecting rod slides and rises in the second section of the tube. When the bottom of the first section of the tube reaches the tube mouth of the second section of the tube, the ball outside the spring sleeve in the ball assembly of the first section of the tube is clamped in the annular groove of the second section of the tube and no longer moves. The second section of the tube begins to slide and rise in the third section of the tube and is clamped in the annular groove of the third section of the tube through the ball. The other tubes slide in the adjacent next section of the tube in turn and are clamped in the annular groove of the next section of the tube through the ball. The outermost tube in the supporting lifting tube is clamped in the annular groove of the supporting tube of the fixed supporting tube through the ball.

[0018] Through the above technical solution, the lifting support part can assist the lifting mechanism to support the support plate and prevent the support plate from overturning.

[0019] Preferably, the screw mounting seat includes an elongated U-shaped trough body, a screw support and a screw support plate, the U-shaped trough body is fixed on the top plate surface of the support plate, the screw support is fixed to one end of the U-shaped trough body along its length direction, and the screw support plate is fixed to the other end of the U-shaped trough body along its length direction, the screw support and the screw support plate are both provided with through holes, the bidirectional screw is located in the U-shaped groove of the U-shaped trough body and its two ends are correspondingly rotatably connected to the through holes of the screw support and the screw support plate.

[0020] Through the above technical solution, the screw mounting seat is fixed on the top plate surface of the support plate, and at the same time, the screw support and the screw support plate set the bidirectional screw in the U-shaped groove of the U-shaped groove body.

[0021] Preferably, the screw drive unit includes a drive motor and a transmission assembly, the drive motor is mounted on the screw support by bolts and its output shaft is transmission-connected to one end of the bidirectional screw passing through the screw support, there are two screw mounting seats and two bidirectional screws, the two bidirectional screws are arranged in parallel, and the transmission assembly is correspondingly mounted on the outer ends of the two screw support plates and transmission-connected to one end of the two bidirectional screws passing through the screw support plates.

[0022] Wherein, the transmission assembly includes a first gear box, a second gear box and a transmission rod, the two gear boxes are respectively fixed on the ends of the corresponding two screw support plates away from the bidirectional screw, each gear box has a first transmission shaft and a second transmission shaft, the first transmission shaft of the first gear box is fixedly connected to the end of the bidirectional screw passing through the screw support plate, the second transmission shaft of the first gear box is fixedly connected to one end of the transmission rod, the other end of the transmission rod is fixedly connected to the first transmission shaft of the second gear box, and the second transmission shaft of the second gear box is fixedly connected to the end of the corresponding bidirectional screw passing through the screw support plate.

[0023] Through the above technical solution, the bidirectional lead screws in the two lead screw mounting seats can be synchronously rotated in the same direction by using the drive motor and the transmission assembly.

[0024] Preferably, the sliding strip includes a base plate, a sliding guide groove body and a sliding rail, the outer end surface of the groove bottom of the sliding guide groove body is fixed to the lower end of the base plate, the sliding rail is fixed to the upper end of the base plate and is arranged along the length direction of the base plate, there are more than two sliding strips, and two adjacent sliding strips are slidably connected to the sliding rail through the sliding guide groove body.

[0025] Through the above technical solution, the present invention enables two adjacent sliding strips to slide smoothly through the sliding guide groove body and the sliding rail.

[0026] Specifically, a base rail is provided on the bottom plate, and the base rail is slidably connected to the sliding guide groove body of the adjacent sliding strip; a sliding plate is fixed to the lower end surface of the cargo board, and a slider is fixed to the lower end surface of the sliding plate, and the slider is slidably connected to the sliding rail of the topmost sliding strip.

[0027] Preferably, the telescopic driving part has a telescopic direction perpendicular to the sliding direction of the sliding guide groove body, there are multiple telescopic driving parts, and both ends of each telescopic driving part are respectively fixed to opposite side ends of the two base plates horizontally corresponding to the two groups of transverse moving plates.

[0028] Preferably, each of the telescopic driving parts comprises a frame, a dual-axis driving motor, a spline sleeve, a connecting shaft and a gear, the frame comprises a first frame and a second frame, and the first frame and the second frame are respectively fixed to the opposite side ends of the two corresponding substrates, the dual-axis driving motor is fixed on the first frame and has a first transmission shaft and a second transmission shaft, the first transmission shaft passes through the first frame, the spline sleeve comprises a spline tube and a spline shaft, one end of the spline tube is fixedly connected to the second transmission shaft of the dual-axis driving motor, the spline shaft is spline-connected to the spline tube and passes through the other end of the spline tube, one end of the connecting shaft is fixedly connected to the spline shaft passing through the spline tube, and the other end of the connecting shaft passes through the second frame, the number of gears is two and they are respectively arranged on the inner sides of the first frame and the second frame, and the axial holes of the two gears are respectively fixedly connected to the first transmission shaft of the dual-axis driving motor and one end of the connecting shaft passing through the spline tube.

[0029] Through the above technical solution, when the spacing adjustment mechanism adjusts the spacing between the two groups of transversely movable plates, the spline shaft can axially slide and retract in the spline tube.

[0030] Specifically, racks are fixed on the end faces of the substrate, bottom plate and sliding plate corresponding to the gears, and are transmission-connected to the corresponding telescopic driving parts through the racks and the gears. The racks are arranged along the length direction of the substrate, bottom plate and sliding plate.

[0031] Through the above technical solution, the operation of the telescopic driving part can cause the upper and lower sliding strips corresponding to the gears of the telescopic driving part to be relatively displaced, so that the multiple sliding strips are extended and unfolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the overall structure of a multi-section telescopic loading platform with adjustable spacing and height according to the utility model;

[0034] Figure 2 It is a front view of the overall structure of a multi-section telescopic loading platform with adjustable spacing and height according to the utility model;

[0035] Figure 3 It is a top view of a multi-section telescopic cargo carrier with adjustable spacing and height, excluding the cargo plate, of the utility model;

[0036] Figure 4 This is a schematic diagram of the connection between a lifting mechanism, a support plate and a lifting support part of a multi-section telescopic cargo rack with adjustable spacing and height according to the utility model;

[0037] Figure 5 This is a schematic diagram of the lifting mechanism structure of a multi-section telescopic cargo rack with adjustable spacing and height according to the utility model;

[0038] Figure 6 It is a schematic diagram of a telescopic lifting tube structure of a multi-section telescopic loading platform with adjustable spacing and height according to the utility model;

[0039] Figure 7 This is a schematic diagram of the structure of a motor mounting frame of a multi-section telescopic loading platform with adjustable spacing and height according to the utility model;

[0040] Figure 8 This is a schematic diagram of the lifting support structure of a multi-section telescopic cargo rack with adjustable spacing and height according to the utility model;

[0041] Fig. 9 It is a schematic diagram of a telescopic support tube of a multi-section telescopic cargo carrier with adjustable spacing and height according to the utility model;

[0042] Fig.10 This is a schematic diagram of the structure of a ball assembly of a multi-section telescopic cargo carrier with adjustable spacing and height according to the utility model;

[0043] Fig.11 It is a top view of a spacing adjustment mechanism of a multi-section telescopic loading platform with adjustable spacing and height according to the utility model;

[0044] Fig.12 This is a schematic diagram of the installation of a single screw mounting seat, a bidirectional screw, a drive motor and a transmission assembly of a multi-section telescopic carrier with adjustable spacing and height according to the utility model;

[0045] Fig.13 It is a schematic diagram of the connection between the transverse moving plate, the telescopic driving part and the sliding plate of a multi-section telescopic loading platform with adjustable spacing and height of the utility model;

[0046] Fig.14 It is a schematic diagram of the connection between a single transverse moving plate and a sliding plate of a multi-section telescopic cargo rack with adjustable spacing and height according to the utility model;

[0047] Fig.15 It is a front view of the connection between the transverse moving plate and the sliding plate of a multi-section telescopic loading platform with adjustable spacing and height of the utility model;

[0048] Fig.16It is a schematic diagram of the connection between the base plate and the telescopic driving part of a multi-section telescopic carrier with adjustable spacing and height according to the utility model;

[0049] Fig.17 This is a schematic diagram of the structure of a telescopic drive unit of a multi-section telescopic cargo rack with adjustable spacing and height according to the utility model;

[0050] Fig.18 The utility model is a schematic diagram of the disassembly of a spline sleeve of a multi-section telescopic carrier with adjustable spacing and height.

[0051] In the accompanying drawings, 1, lifting mechanism, 2, support plate, 3, spacing adjustment mechanism, 4, transverse moving plate, 5, telescopic drive unit, 6, cargo plate, 7, lifting support unit, 100, rack, 11, fixed bottom plate, 12, telescopic lifting tube, 13, connecting rod, 14, motor mounting frame, 15, lifting motor, 31, screw mounting seat, 32, bidirectional screw, 33, screw drive unit, 34, longitudinal nut block, 41, bottom plate, 42, sliding strip plate, 51, frame, 52, dual-axis drive motor, 53, spline sleeve, 54, connecting shaft, 55, gear, 61, sliding plate, 611, slider, 71, support bottom plate, 72, telescopic support tube, 73, support connecting rod, 74, rod support, 121, fixed Tube, 122, lifting tube, 123, inner retaining ring, 124, outer retaining ring, 141, top plate, 142, mounting base plate, 143, support rod, 311, U-shaped trough body, 312, screw support, 313, screw support plate, 331, drive motor, 332, transmission assembly, 411, base rail, 421, base plate, 422, sliding guide groove body, 423, slide rail, 511, first frame, 512, second frame, 531, spline tube, 532, spline shaft, 611, slider, 721, fixed support tube, 722, support lifting tube, 723, ball assembly, 724, annular groove, 7211, support tube annular groove, 7231, spring sleeve, 7232, spring, 7233, ball. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] See attached Figure 1 To Attachment Figure 4 , which is a multi-section telescopic cargo rack with adjustable spacing and height of the utility model, comprising a lifting mechanism 1, a support plate 2, a spacing adjustment mechanism 3, a transverse moving plate 4, a telescopic driving unit 5 and a cargo plate 6; the bottom plate surface of the support plate 2 is fixed to the lifting end of the lifting mechanism 1, the spacing adjustment mechanism 3 comprises a screw mounting seat 31, a bidirectional screw 32, a screw driving unit 33 and a longitudinal nut block 34, the screw mounting seat 31 is fixed to the top plate surface of the support plate 2, the bidirectional screw 32 is rotatably connected to the screw mounting seat 31, the screw driving unit 33 is mounted on the screw mounting seat 31 and is transmission-connected to the bidirectional screw 32, and the longitudinal nut block 34 is divided into two groups and is respectively connected to the bidirectional screw 3 2, the transverse moving plates 4 are divided into two groups and both include a bottom plate 41 and a sliding strip plate 42. The two groups of sliding strip plates 42 are arranged in parallel and are respectively slidably connected to the corresponding bottom plates 41, and the sliding directions of the two groups of sliding strip plates 42 are perpendicular to the bidirectional lead screw 32. The bottom plates 41 of the two groups of transverse moving plates 4 are respectively fixed on the corresponding two groups of longitudinal nut blocks 34. The telescopic driving part 5 is horizontally arranged between the two groups of sliding strip plates 42 and its two ends are respectively fixed on the side ends of the two oppositely arranged sliding strip plates 42. There are two cargo boards 6 and they are respectively slidably connected to the two corresponding groups of sliding strip plates 42. The tops of the two cargo boards 6 can be used to carry goods together.

[0056] See attached Figure 5 To Attachment Figure 7In some specific embodiments, the lifting mechanism 1 includes a fixed base plate 11, a telescopic lifting tube 12, a connecting rod 13, a motor mounting frame 14 and a lifting motor 15; the telescopic lifting tube 12 includes a fixed tube 121 and a lifting tube 122, the bottom end of the fixed tube 121 is fixed on the fixed base plate 11, the outer wall of the lifting tube 122 is threadedly connected to the inner wall surface of the fixed tube 121, and the upper end of the lifting tube 122 passes through the upper end of the fixed tube 121; the lower end of the connecting rod 13 is fixedly connected in the lifting tube 122; the motor mounting frame 14 is fixedly connected to the lower end surface of the support plate 2; the lifting motor 15 is fixed on the motor mounting frame 14, and the output shaft of the lifting motor 15 is perpendicular to the support plate 2 and downwardly passes through the motor mounting frame 14 and is fixedly connected to the upper end of the connecting rod 13.

[0057] The lifting pipe 122 is composed of multiple sections of inner and outer pipe fittings, each section of the pipe fitting is 60 cm high, the first section of the pipe fitting has the smallest diameter and is located in the innermost layer of the lifting pipe 122, the diameter of the pipe fitting of the adjacent next section gradually increases, and the diameter of the pipe fitting of the outermost layer is the largest, the lower end of the connecting rod 13 is fixedly connected to the first section of the pipe fitting, and the adjacent next section of the pipe fitting is sleeved on the previous section of the pipe fitting; the top inner wall of each section of the pipe fitting is provided with an inner clamping ring 123, and the bottom outer wall is provided with an outer clamping ring 124, and each pipe fitting is connected to the adjacent lower section through the outer clamping ring 124. The inner clamping ring 123 of a section of pipe fitting is used for limiting the position, and at the same time, threads are processed on the inner wall of each pipe fitting, and threads are processed on the side wall of the outer clamping ring 124. The outer clamping ring 124 of each pipe fitting is threadedly connected to the inner wall of the adjacent next section of pipe fitting; the top inner wall of the fixed pipe 121 is also provided with an inner clamping ring 123, and threads are processed on the inner side wall of the fixed pipe 121. The outermost pipe fitting in the lifting pipe 122 is threadedly connected to the fixed pipe 121 through the outer clamping ring 124, and is limited by the outer clamping ring 124 and the inner clamping ring of the fixed pipe 121.

[0058] When the output shaft of the lifting motor 15 rotates, it drives the connecting rod 13 to rotate. At the same time, the first section of the pipe fixedly connected to the connecting rod 13 spirally rises in the second section of the pipe through the outer clamping ring 124 at the bottom. When it reaches the pipe mouth of the second section of the pipe, it is clamped and limited by the outer clamping ring 124 and the inner clamping ring 123 of the second section of the pipe and no longer rotates, thereby transmitting the torque to the second section of the pipe. The second section of the pipe that obtains the torque rotates and rises in the third section of the pipe, and the remaining pipes are transmitted in turn. The outermost pipe in the lifting tube 122 is limited in rising by the outer clamping ring 124 and the inner clamping ring 123 of the fixed tube 121.

[0059] The motor mounting frame 14 includes a top plate 141, a mounting bottom plate 142 and a support rod 143. An assembly hole is opened on the top plate 141. Bolts pass through the assembly hole to fix the top plate 141 to the lower end surface of the support plate 2. The top end of the support rod 143 is fixed to the lower plate surface of the top plate. The mounting bottom plate 142 is parallel to the top plate 141 and is fixed to the bottom end of the support rod 143. The fixed end of the lifting motor 15 is fixed to the upper plate surface of the mounting bottom plate 142, and its output shaft passes through the mounting bottom plate 142 and is fixedly connected to the upper end of the connecting rod 143. When the lifting tube 12 rises, the motor mounting frame 14 fixedly connected to the lifting motor 15 has an upward trend, and the top plate 141 of the motor mounting frame 14 supports and lifts the support plate 2.

[0060] In some other specific embodiments, see the attached Figure 8 To Attachment Fig.10 , and also includes a lifting support part 7, there are multiple lifting support parts 7, and the multiple lifting support parts 7 are arranged around the lifting mechanism 1 below the support plate 2, and the lifting support parts 7 include a support base plate 71, a telescopic support tube 72, a support connecting rod, 73 and a screw mounting seat 74, the telescopic support tube 72 includes a fixed support tube 721 and a support lifting tube 722, the bottom end of the fixed support tube 711 is fixed on the support base plate 71, the support lifting tube 722 is slidably connected in the fixed support tube 721 and passes through the upper end of the fixed support tube 721, the lower end of the support connecting rod 73 is threadedly connected in the support lifting tube 722, the screw mounting seat 74 is fixedly connected to the lower end surface of the support plate 2, and the upper end of the support connecting rod 73 is fixedly connected to the rod support 74.

[0061] Specifically, the support and lifting pipe 722 also includes multiple sections of inner and outer pipe fittings, each section of the support and lifting pipe 722 corresponds to each section of the lifting pipe 122 and has the same height, the diameter of the pipe fittings of the support and lifting pipe 722 increases from the inside to the outside, the first section of the pipe fitting is located in the innermost layer, the lower end of the support connecting rod 73 is fixedly connected to the first section of the pipe fitting, and the next section of the pipe fitting is sleeved on the previous section of the pipe fitting;

[0062] A ball assembly 723 is fixed on the bottom outer wall of each pipe section. The ball assembly 723 includes a spring sleeve 7231, a spring 7232 and a ball 7233. The open end of the spring sleeve 7231 is welded to the outer side wall of the corresponding pipe. A ball hole is opened on the cylinder wall of the closed end of the spring sleeve 7231. The hole diameter of the ball hole is smaller than the diameter of the ball 7233. The spring 7232 and the ball 7233 are both placed in the spring sleeve 7231. The spring 7232 is in a compressed state with one end of it abutting against the side wall of the corresponding pipe and the other end abutting against the side wall of the corresponding pipe. The ball 7233 is connected to the inner wall of the top of each pipe fitting, and a part of the ball 7233 facing the ball hole is exposed outside the spring sleeve. The inner wall of the top of each pipe fitting is provided with an annular groove 724 arranged around the pipe fitting, and the annular groove 724 is clamped with the part of the ball 7233 exposed from the spring sleeve 7231. The inner wall of the top of the fixed support pipe 721 is also provided with a support pipe annular groove 7211 arranged around the fixed support pipe 721, and the support pipe annular groove 7211 is clamped with the ball 7233 of the outermost pipe fitting in the support lifting pipe 722;

[0063] When the support plate 2 rises, it drives the supporting connecting rod 73 to rise. At the same time, the first section of the tube in the telescopic supporting tube 72 fixedly connected to the supporting connecting rod 73 slides and rises in the second section of the tube. When the bottom of the first section of the tube reaches the pipe mouth of the second section of the tube, the ball 7233 in the ball assembly 723 of the first section of the tube is clamped in the annular groove 724 of the second section of the tube and no longer moves. The second section of the tube begins to slide and rise in the third section of the tube and is finally clamped in the annular groove 724 of the third section of the tube through the ball 7233. The other tubes slide in the adjacent next section of the tube in turn and are clamped with the annular groove 724 of the next section of the tube through the ball 7233. The outermost tube in the supporting lifting tube 722 is clamped in the supporting tube annular groove 7211 of the fixed supporting tube 721 through the ball 7233.

[0064] See attached Fig.11 and attached Fig.12 In some other specific implementations, the screw mounting seat 31 includes: a long U-shaped groove body 311, a screw support 312, and a screw support plate 313. The bottom wall of the U-shaped groove body 311 is provided with an assembly hole, and the screw passes through the assembly hole to fix the U-shaped groove body 311 to the top plate surface of the support plate 2. The screw support 312 is fixed to one end of the U-shaped groove body 311 along its length direction, and the screw support plate 313 is fixed to the other end of the U-shaped groove body 311 along its length direction. Both the screw support 312 and the screw support plate 313 are provided with through holes, and the bidirectional screw 32 is located in the U-shaped groove of the U-shaped groove body 311 and its two ends are correspondingly rotatably connected to the through holes of the screw support 312 and the screw support plate 313.

[0065] Specifically, positive thread teeth and negative thread teeth are processed on the outer wall of the bidirectional lead screw. The positive thread teeth and negative thread teeth are symmetrically arranged on the surface of the bidirectional lead screw with the length center of the bidirectional lead screw. When the bidirectional lead screw rotates, the rotation directions of the two thread teeth are opposite. When the bidirectional lead screw rotates in the U-shaped groove body, the longitudinal nut blocks connected on different thread teeth on the bidirectional lead screw move in opposite directions.

[0066] In some specific examples, the screw drive unit 33 includes a drive motor 331 and a transmission assembly 332. The drive motor 331 is installed on the screw support 312 by bolts and its output shaft is transmission-connected to one end of the bidirectional screw 32 passing through the screw support 312. There are two screw mounting seats 31 and two bidirectional screws 32, and the two bidirectional screws 32 are arranged in parallel. The transmission assembly 332 is correspondingly installed on the outer ends of the two screw support plates 313 and is transmission-connected to one end of the two bidirectional screws 32 passing through the screw support plates 313.

[0067] Among them, the transmission assembly 332 includes a first gear box, a second gear box and a transmission rod. The two gear boxes are respectively fixed on the ends of the two screw support plates 313 away from the bidirectional screw 32. Each gear box has a first transmission shaft and a second transmission shaft. The first transmission shaft of the first gear box is fixedly connected to the end of the bidirectional screw 32 passing through the screw support plate 313, the second transmission shaft of the first gear box is fixedly connected to one end of the transmission rod, and the other end of the transmission rod is fixedly connected to the first transmission shaft of the second gear box, and the second transmission shaft of the second gear box is fixedly connected to the end of the corresponding bidirectional screw 32 passing through the screw support plate 313.

[0068] When the drive motor 331 is started, the bidirectional lead screw 32 connected to the output shaft of the drive motor rotates, and transmits power and torque to the other bidirectional lead screw through the first gear box, the transmission rod and the second gear box, so that the two bidirectional lead screws rotate synchronously in the same direction.

[0069] See attached Fig.13 To Attachment Fig.15 In some specific embodiments, the sliding strip 42 includes a base plate 421, a sliding guide groove body 422 and a slide rail 423. The outer end surface of the groove bottom of the sliding guide groove body 422 is fixed to the lower end of the base plate 421, and the slide rail 423 is fixed to the upper end of the base plate 421 and is arranged along the length direction of the base plate 421. There are more than two sliding strips 42, and two adjacent sliding strips 42 are slidably connected to the slide rail 423 through the sliding guide groove body 422.

[0070] In some specific examples, a base rail 411 is provided on the bottom plate 41, and the base rail 411 is slidably connected to the sliding guide groove body 422 of the adjacent sliding strip 42; a sliding plate 61 is fixed to the lower end surface of the cargo plate 6, and a slider 611 is fixed to the lower end surface of the sliding plate 61, and the slider 611 is slidably connected to the sliding rail 423 of the topmost sliding strip 42.

[0071] See attached Fig.16 To Attachment Fig.18 In other specific embodiments, the telescopic direction of the telescopic driving part 5 is perpendicular to the sliding direction of the sliding guide groove body 422, there are multiple telescopic driving parts 5, and the two ends of each telescopic driving part 5 are respectively fixed on the opposite side ends of the two base plates 421 horizontally corresponding to the two groups of horizontally movable plates 4.

[0072] In some specific examples, each telescopic driving part 5 includes: a frame 51, a dual-axis driving motor 52, a spline sleeve 53, a connecting shaft 54 ​​and a gear 55. The frame 51 includes a first frame 511 and a second frame 512, and the first frame 511 and the second frame 512 are respectively fixed to the opposite side ends of two corresponding substrates 421. The dual-axis driving motor 52 is fixed on the first frame 511 and has a first transmission shaft and a second transmission shaft. The first transmission shaft passes into the first frame 511. The spline sleeve 53 includes a spline tube 531 and a spline shaft 532. One end of the spline tube 531 is fixedly connected to the second transmission shaft of the dual-axis drive motor 52, the spline shaft 532 is spline-connected to the spline tube 531 and passes through the other end of the spline tube 531, one end of the connecting shaft 54 ​​is fixedly connected to the spline shaft 532 passing through the spline tube 531, and the other end of the connecting shaft 54 ​​passes into the second frame 512. There are two gears 55 and they are respectively arranged on the inner sides of the first frame 511 and the second frame 512. The axial holes of the two gears 55 are respectively fixedly connected to the first transmission shaft of the dual-axis drive motor 52 and one end of the connecting shaft passing through the spline tube 531.

[0073] Specifically, the spline shaft 532 can be axially extended and retracted in the spline tube 531 . The spline shaft 532 is keyed to the inner wall of the spline tube 531 . The rotation of the spline shaft 532 drives the spline tube 531 to rotate. The spline sleeve 53 has the function of transmitting torque.

[0074] In other specific examples, racks 8 are fixed on the end faces of the substrate 421, the bottom plate 41 and the sliding plate 611 corresponding to the gear 55, and are transmission-connected to the corresponding telescopic driving part 5 through the rack 8 and the gear 55. The rack 100 is arranged along the length direction of the substrate 422.

[0075] Specifically, the telescopic driving part 5 drives the gear 55 to rotate, so that the gear 55 moves up and down relatively through the base plate 421 or the bottom plate 41 or the sliding plate 611 that is meshed with the rack 100 accordingly.

[0076] When the device is in use, first, the lifting motor is started, and the support plate is lifted or lowered in the fixed tube through the lifting tube, so that the support plate reaches a height corresponding to the cargo; then, the spacing adjustment motor is controlled to operate, and the bidirectional lead screw is adjusted and rotated to make the two groups of longitudinal nut blocks approach or move away from each other, thereby adjusting the spacing between the two groups of transverse moving plates, so that the cargo plates of the two transverse moving plates are unfolded to a size suitable for the size of the cargo; then, the dual-axis drive motor is started, and the multiple sliding strips of the transverse moving plate are made to slide relative to each other through gears and racks, and finally the multiple sliding strips are extended and unfolded to move the cargo plates to the cargo placement area, and finally, a cargo bracket is placed on the two cargo plates, and the cargo is placed on the cargo bracket, and the dual-axis drive motor, the spacing adjustment motor and the lifting motor are controlled again to move the cargo to the designated area and unload it.

[0077] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-section telescopic cargo carrier with adjustable spacing and height, characterized in that: include: Lifting mechanism (1), A support plate (2), the bottom surface of the support plate (2) being fixed to the lifting end of the lifting mechanism (1); A spacing adjustment mechanism (3), the spacing adjustment mechanism (3) comprising a screw mounting seat (31), a bidirectional screw (32), a screw driving unit (33) and a longitudinal nut block (34), the screw mounting seat (31) being fixed on the top plate surface of the support plate (2), the bidirectional screw (32) being rotatably connected to the screw mounting seat (31), the screw driving unit (33) being mounted on the screw mounting seat (31) and being transmission-connected to the bidirectional screw (32), and the longitudinal nut block (34) being in two groups and being transmission-connected to opposite threaded sections of the bidirectional screw (32) respectively; Transverse moving plates (4), the transverse moving plates (4) being two groups and each comprising a bottom plate (41) and a sliding strip (42), the sliding strips (42) of the two groups of the transverse moving plates (4) being parallel to each other and respectively slidably connected to the corresponding bottom plates (41), and the sliding directions of the two groups of the sliding strips (42) being arranged perpendicular to the bidirectional lead screw (32), and the bottom plates (41) of the two groups of the transverse moving plates (4) being respectively fixed to the corresponding two groups of the longitudinal nut blocks (34); A telescopic driving part (5), the telescopic driving part (5) being arranged horizontally between the two groups of sliding strips (42) and having two ends thereof respectively fixed to the side ends of two oppositely arranged sliding strips (42); The cargo board (6) comprises two cargo boards (6) which are respectively slidably connected to the two sets of sliding strips (42), and the tops of the two cargo boards (6) can be used to carry cargo together.

2. A multi-section telescopic cargo carrier with adjustable spacing and height according to claim 1, characterized in that: The lifting mechanism (1) comprises: Fix the bottom plate (11), A telescopic lifting tube (12), the telescopic lifting tube (12) comprising a fixed tube (121) and a lifting tube (122), the bottom end of the fixed tube (121) being fixed on the fixed bottom plate (11), the outer wall of the lifting tube (122) being threadedly connected to the inner wall of the fixed tube (121), and the upper end of the lifting tube (122) passing through the upper end of the fixed tube (121); A connecting rod (13), the lower end of the connecting rod (13) being fixedly connected in the lifting tube (122); A motor mounting frame (14), the motor mounting frame (14) being fixedly connected to the lower end surface of the support plate (2); A lifting motor (15), wherein the lifting motor (15) is fixed on the motor mounting frame (14), and an output shaft of the lifting motor (15) is perpendicular to the support plate (2) and passes downward through the motor mounting frame (14) to be fixedly connected to the upper end of the connecting rod (13).

3. A multi-section telescopic cargo carrier with adjustable spacing and height according to claim 2, characterized in that: It also comprises a lifting support part (7), wherein the lifting support parts (7) are multiple, and the multiple lifting support parts (7) are arranged below the support plate (2) around the circumference of the lifting mechanism (1), and the lifting support parts (7) each comprise: Supporting bottom plate (71), a telescopic support tube (72), the telescopic support tube (72) comprising a fixed support tube (721) and a support lifting tube (722), the bottom end of the fixed support tube (721) being fixed on the support bottom plate (71), and the support lifting tube (722) being slidably connected inside the fixed support tube (721) and passing through the upper end of the fixed support tube (721); a support connecting rod (73), the lower end of the support connecting rod (73) being fixedly connected in the support lifting tube (722); A rod support (74), the rod support (74) being fixedly connected to the lower end surface of the support plate (2), and the upper end of the support connecting rod (73) being fixedly connected to the rod support (74).

4. The multi-section telescopic cargo carrier with adjustable spacing and height according to claim 1, characterized in that: The screw mounting seat (31) comprises: A long U-shaped trough body (311), wherein the U-shaped trough body (311) is fixed on the top plate surface of the support plate (2); A lead screw support (312), the lead screw support (312) being fixed to one end of the U-shaped groove body (311) along its length direction; A lead screw support plate (313), the lead screw support plate (313) being fixed to the other end of the U-shaped trough body (311) along its length direction; The screw support (312) and the screw support plate (313) are both provided with through holes, the bidirectional screw (32) is located in the U-shaped groove of the U-shaped groove body (311), and its two ends are correspondingly rotatably connected to the through holes of the screw support (312) and the screw support plate (313).

5. A multi-section telescopic cargo carrier with adjustable spacing and height according to claim 4, characterized in that: The screw drive unit (33) comprises a drive motor (331) and a transmission assembly (332); the drive motor (331) is mounted on the screw support (312) by means of bolts and its output shaft is in transmission connection with one end of the bidirectional screw (32) passing through the screw support (312); There are two of each of the screw mounting seat (31) and the bidirectional screw (32), and the two bidirectional screws (32) are arranged in parallel. The transmission assembly (332) is correspondingly mounted on the outer ends of the two screw support plates (313) and is transmission-connected to one end of the two bidirectional screws (32) passing through the screw support plates (313).

6. A multi-section telescopic cargo carrier with adjustable spacing and height according to claim 5, characterized in that: The sliding strip plate (42) comprises a base plate (421), a sliding guide groove body (422) and a slide rail (423); the outer end surface of the groove bottom of the sliding guide groove body (422) is fixed to the lower end of the base plate (421); the slide rail (423) is fixed to the upper end of the base plate (421) and is arranged along the length direction of the base plate (421); there are more than two sliding strip plates (42), and two adjacent sliding strip plates (42) are slidably connected to the slide rail (423) through the sliding guide groove body (422).

7. A multi-section telescopic cargo carrier with adjustable spacing and height according to claim 6, characterized in that: A base rail (411) is provided on the bottom plate (41), and the base rail (411) is slidably connected to a sliding guide groove body (422) of an adjacent sliding strip plate (42); A sliding plate (61) is fixed to the lower end surface of the cargo loading plate (6), a slider (611) is fixed to the lower end surface of the sliding plate (61), and the slider (611) is slidably connected to the slide rail (423) of the topmost sliding strip plate (42).

8. The multi-section telescopic cargo carrier with adjustable spacing and height according to claim 7, characterized in that: The telescopic direction of the telescopic drive part (5) is perpendicular to the sliding direction of the sliding guide groove body (422). There are multiple telescopic drive parts (5), and both ends of each telescopic drive part (5) are respectively fixed to the opposite side ends of the two base plates (421) horizontally corresponding to the two groups of transverse movable plates (4).

9. The multi-section telescopic cargo carrier with adjustable spacing and height according to claim 8, characterized in that: Each of the telescopic driving parts (5) comprises: A frame (51), the frame (51) comprising a first frame (511) and a second frame (512), wherein the first frame (511) and the second frame (512) are respectively fixed to opposite side ends of two horizontally corresponding substrates (421); A dual-axis drive motor (52), the dual-axis drive motor (52) being fixed on the first frame (511) and having a first transmission shaft and a second transmission shaft, the first transmission shaft passing through the first frame (511); A spline sleeve (53), the spline sleeve (53) comprising a spline tube (531) and a spline shaft (532), one end of the spline tube (531) being fixedly connected to the second transmission shaft of the dual-shaft drive motor (52), and the spline shaft (532) being spline-connected to the spline tube (531) and passing through the other end of the spline tube (531); A connecting shaft (54), one end of the connecting shaft (54) being fixedly connected to a spline shaft (532) passing through the spline tube (531), and the other end of the connecting shaft (54) passing through the second frame (512); Gears (55), wherein there are two gears (55) and the gears (55) are respectively arranged inside the first frame (511) and the second frame (512), and the two gears (55) are respectively fixedly connected to the first transmission shaft of the dual-axis drive motor (52) and one end of the connecting shaft (54) passing through the spline tube (531).

10. A multi-section telescopic cargo carrier with adjustable spacing and height according to claim 9, characterized in that: A rack (100) is fixed on the end surfaces of the base plate (421), the bottom plate (41) and the sliding plate (61) corresponding to the gear (55), and is transmission-connected to the corresponding telescopic drive unit (5) via the rack (100) and the gear (55); the rack (100) is arranged along the length direction of the base plate (421), the bottom plate (41) and the sliding plate (61).

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