CN111573130A

CN111573130A - Telescopic belt conveyer

Info

Publication number: CN111573130A
Application number: CN202010581246.8A
Authority: CN
Inventors: 奚剑文; 奚卫平
Original assignee: Chengda Conveying Equipment Suzhou Co ltd
Current assignee: Chengda Conveying Equipment Suzhou Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-08-25

Abstract

A telescopic belt conveyor comprises a floor conveying mechanism; the conveying belt driving mechanism is arranged at the lower part of the floor conveying mechanism; the group of telescopic conveying mechanisms are matched with the upper part of the floor conveying mechanism and are superposed on the floor conveying mechanism in a storage state, and each upper and lower adjacent telescopic conveying mechanisms in the group of telescopic conveying mechanisms form a sliding fit relation with each other; conveyor belt is connected and on falling to the ground conveying mechanism and a set of flexible conveying mechanism, characteristics with conveyor belt actuating mechanism around the cover: the telescopic conveying frame locking mechanism is arranged on the front side of the right end of the group of telescopic conveying mechanisms. Deformation is avoided and the requirement of long-distance conveying is met; expanding the conveying length according to the requirement; the requirement of storage in a superposed state is met; the structure is simplified and the daily inspection and maintenance are reduced; the space is saved.

Description

Telescopic belt conveyer

Technical Field

The invention belongs to the technical field of conveying equipment, and particularly relates to a telescopic belt conveyor.

Background

The belt conveyor can be used in various fields such as a flow production platform, a port and a dock, logistics, agriculture and the like, the telescopic belt conveyor has the advantages of strong conveying distance adaptability, high conveying efficiency and the like compared with a common belt conveyor, and technical information related to the telescopic belt conveyor can be found in published Chinese patent documents, for example, a novel telescopic belt conveyor is recommended in CN105109899A, a five-section telescopic belt conveyor is provided in CN209843720U, a telescopic belt conveyor is introduced in CN206679729U, and the like.

The patents cited above, although not limiting, each have specific technical effects, have the following general disadvantages: firstly, since one floor-type conveying mechanism (i.e., "basic conveying mechanism", the same applies below) located at the base is supported on the floor, and the other telescopic conveying mechanisms arranged as carriers with the floor-type conveying mechanism are in a generally horizontal cantilever state when extending out, on one hand, the telescopic conveying mechanisms are easy to drop and deform or even damage, especially when the conveyed articles are heavy in weight, the deformation degree is correspondingly increased, and on the other hand, the number of the telescopic conveying mechanisms and the extending distance are limited relative to the floor-type conveying mechanism, because the larger the number of the telescopic conveying mechanisms and the longer the extending distance are, the larger the deformation degree is, and the more violent shaking degree is in work; secondly, in order to avoid the problems of deformation, shaking and swaying during use, the maximum extension length (i.e. the sum of the length of the floor conveying mechanism and the extension lengths of all the telescopic conveying mechanisms) is limited, so that the application range of the telescopic belt conveyor is also limited, for example, the telescopic belt conveyor cannot adapt to the operations of vegetable and fruit fertilization, planting, picking and the like of the agricultural greenhouse, because the length of the agricultural greenhouse reaches tens of meters, hundreds of meters or even longer; thirdly, due to the lack of a mechanism for reasonably locking the telescopic conveying mechanisms with each other, the telescopic conveying mechanisms are liable to slide out abnormally in a non-use state, that is, the telescopic conveying mechanisms are difficult to store even cannot be stored in a stacked state reliably, and if the telescopic conveying mechanisms are in a non-use state (that is, a standby state) in an extending mode, the telescopic conveying mechanisms not only occupy space seriously, but also cause interference situations for passing of people, other operations and the like; fourthly, because each flexible conveying mechanism needs to rely on the transmission part to make each flexible conveying mechanism's cylinder drive belt motion, therefore increased the complexity of equipment and the maintenance work load in daily use on the one hand, on the other hand has the economic nature of losing and is unfavorable for energy saving and consumption. In view of the foregoing, there is a need for reasonable improvements, and the solutions described below are made in this context.

Disclosure of Invention

The invention aims to provide a telescopic belt conveyor which is beneficial to supporting a telescopic conveying mechanism on a floor in a use state to avoid deformation and meet the requirement of long-distance conveying, is beneficial to expanding the conveying length according to the requirement and simultaneously ensures no deformation, no shake and no shaking to be matched with the operation of an agricultural vegetable and fruit greenhouse, is beneficial to locking an upper telescopic conveying mechanism and a lower telescopic conveying mechanism in a non-use state to be reliably stored in a superposed state, is convenient to use a conveying belt as a traction piece and pull the telescopic conveying mechanism, abandons other transmission pieces, simplifies the structure, reduces the maintenance workload in daily use and embodies good energy-saving effect, and is beneficial to realizing the drawer-like effect when the telescopic belt conveyor is expanded to be long in length and stored so as to obviously save the storage space.

The task of the invention is achieved by a telescopic belt conveyor, which comprises a floor conveying mechanism; the conveying belt driving mechanism is arranged at the lower part of the floor conveying mechanism; the telescopic conveying mechanisms are in sliding fit with the upper parts of the floor conveying mechanisms and are overlapped on the floor conveying mechanisms in a storage state, and each upper and lower adjacent telescopic conveying mechanisms in the telescopic conveying mechanisms form a sliding fit relation with each other; the conveying belt is in transmission connection with the conveying belt driving mechanism and is wound on the floor conveying mechanism and the group of telescopic conveying mechanisms, and the conveying belt is characterized by further comprising telescopic conveying frame supporting mechanisms and telescopic conveying frame locking mechanisms, wherein the number of the telescopic conveying frames is equal to that of the group of telescopic conveying mechanisms, the telescopic conveying frame supporting mechanisms are arranged at the left ends of the group of telescopic conveying mechanisms, and the telescopic conveying frame locking mechanisms are arranged on the front sides of the right ends of the group of telescopic conveying mechanisms.

In a specific embodiment of the present invention, the floor-type conveying mechanism comprises a floor-type conveying frame front beam, a floor-type conveying frame rear beam, a floor-type conveying frame left conveying belt roller, a floor-type conveying frame right conveying belt roller, a floor-type conveying frame carrier belt roller, a floor-type conveying frame belt tensioning roller, a floor-type conveying frame left supporting device and a floor-type conveying frame right supporting device, wherein the floor-type conveying frame front beam and the floor-type conveying frame rear beam are parallel to each other in the length direction, the floor-type conveying frame front beam and the middle part of the floor-type conveying frame rear beam are connected through a floor-type conveying frame supporting connecting cross beam which is distributed at intervals, the floor-type conveying frame left conveying belt roller is rotatably supported between the left ends of the floor-type conveying frame front beam and the floor-type conveying frame rear beam, the floor-type conveying frame right conveying belt roller is rotatably supported between the right ends of the floor-type conveying frame front beam and the floor-type conveying frame rear beam, and the floor-type conveying frame carrier belt roller is rotatably arranged on the floor-type conveying frame at The floor-type conveyor belt tensioning roller is rotatably supported between the front beam of the floor-type conveyor frame and the rear beam of the floor-type conveyor frame at a position corresponding to the lower part of the left side of the right conveyor belt roller of the floor-type conveyor frame and is also contacted with the lower part of the outward side of the conveyor belt; the conveying belt driving mechanism is arranged between the front beam of the floor type conveying frame and the right end of the rear beam of the floor type conveying frame; the group of telescopic conveying mechanisms are in sliding fit with the upper parts of the front beam of the floor type conveying frame and the rear beam of the floor type conveying frame, are superposed on the upper part between the front beam of the floor type conveying frame and the rear beam of the floor type conveying frame in a storage state, and correspond to the upper part of the left supporting device of the floor type conveying frame; the conveying belt is sleeved on the left conveying belt roller of the floor type conveying frame and the right conveying belt roller of the floor type conveying frame; and in the telescopic conveying frame locking mechanisms, one telescopic conveying frame locking mechanism positioned at the lowest part is locked with or unlocked from the front beam of the floor conveying frame.

In another specific embodiment of the invention, the conveying belt driving mechanism comprises a transmission case body, a driving motor seat, a driving motor, a driving sprocket, a driven sprocket, a transmission chain, a conveying belt driving roller, a conveying belt first guide roller I, a conveying belt second guide roller II and an electric control case, the transmission case body is fixed between the front beam of the floor type conveying frame and the right end of the rear beam of the floor type conveying frame, the driving motor seat is fixed in the transmission case body, the driving motor is fixed on the driving motor seat and is electrically connected with the electric control case, the driving sprocket is fixed on a driving motor shaft of the driving motor, one end of the transmission chain is sleeved on the driving sprocket, the other end of the transmission chain is sleeved on the driven sprocket, the driven sprocket is fixed on a conveying belt driving roller shaft of the conveying belt driving roller, and the front end and the rear end of the conveying belt driving roller shaft are respectively and rotatably supported on a driving roller shaft bearing seat, the driving roll shaft bearing seat is arranged on the transmission box body, a first guide roller I of the conveying belt is rotatably supported between the front beam of the floor type conveying frame and the rear beam of the floor type conveying frame at a position corresponding to the upper left side of a driving roller of the conveying belt, a second guide roller II of the conveying belt is also rotatably supported between the front beam of the floor type conveying frame and the rear beam of the floor type conveying frame at a position corresponding to the upper right side of the driving roller of the conveying belt, and the electric control box is fixed between the front beam of the floor type conveying frame and the rear beam of the floor type conveying frame at a position corresponding to the left side of the transmission box body; the conveying belt is sleeved on the conveying belt driving roller, the first guide roller I of the conveying belt and the second guide roller II of the conveying belt.

In a further embodiment of the invention, the set of telescopic conveyor mechanisms each comprises a telescopic conveyor frame front beam, a telescopic conveyor frame rear beam, a telescopic conveyor frame left conveyor belt roller, a telescopic conveyor frame right conveyor belt roller, a telescopic conveyor frame carrier belt roller, a conveyor belt first guide roller I and a conveyor belt second guide roller II, and a telescopic conveyor frame connecting cross beam belt carrier plate, wherein the telescopic conveyor frame front beam and the telescopic conveyor frame rear beam are parallel to each other in the length direction and are connected between the middle parts of the telescopic conveyor frame front beam and the telescopic conveyor frame rear beam by telescopic conveyor frame supporting connecting cross beams which are distributed at intervals, the telescopic conveyor frame left conveyor belt roller is rotatably supported between the left ends of the telescopic conveyor frame front beam and the telescopic conveyor frame rear beam, the telescopic conveyor frame right conveyor belt roller is rotatably supported between the right ends of the telescopic conveyor frame front beam and the telescopic conveyor frame rear beam, the telescopic conveyor frame belt supporting rollers are arranged between the middle parts of the front beam and the rear beam of the telescopic conveyor frame at intervals and are in contact with the lower part of one side, facing outwards, of the conveyor belt, a first conveyor belt guide roller I and a second conveyor belt guide roller II are rotatably supported between the front beam and the rear beam of the telescopic conveyor frame in a state of corresponding left and right to each other, and the second conveyor belt guide roller II corresponds to the lower part of the left side of the right conveyor belt roller of the telescopic conveyor frame; the conveying belt is sequentially wound and sleeved on the first guide roller I of the conveying belt, the left conveying belt roller of the telescopic conveying frame, the right conveying belt roller of the telescopic conveying frame and the second guide roller II of the conveying belt in a circuitous state, and the belt supporting plate of the telescopic conveying frame connecting beam is fixed on the upper part of the supporting and connecting beam of the telescopic conveying frame; the telescopic conveying frame supporting mechanism is arranged between the left end faces of the front beam and the rear beam of the telescopic conveying frame; floor-type conveying frame locking holes are formed in the upper part of the front beam of the floor-type conveying frame at intervals in the length direction, telescopic conveying frame locking holes are formed in the upper part of the front beam of the telescopic conveying frame at intervals in the length direction, the telescopic conveying frame locking mechanism corresponding to the front beam of the floor-type conveying frame is locked or unlocked with the floor-type conveying frame locking holes, and the telescopic conveying frame locking mechanism corresponding to the front beam of the telescopic conveying frame is locked or unlocked with the telescopic conveying frame locking holes; in the group of telescopic conveying mechanisms, the front beam of the telescopic conveying frame and the rear beam of the telescopic conveying frame of two adjacent telescopic conveying mechanisms form a sliding fit relationship through a left sliding guide mechanism and a right sliding guide mechanism respectively; the structure of the floor type conveying frame left supporting device is the same as that of the telescopic conveying frame supporting mechanism.

In still another specific embodiment of the present invention, the telescopic carriage support mechanism includes a pair of support wheel arm shafts, a pair of support wheel arms, and a pair of support wheels, the pair of support wheel arm shafts being parallel to each other up and down and front ends of the pair of support wheel arm shafts being fixed to a left end of the front beam of the telescopic carriage, and rear ends of the pair of support wheel arm shafts being fixed to a left end of the rear beam of the telescopic carriage, a middle portion of the pair of support wheel arm shafts corresponding to a left side of the left belt roller of the telescopic carriage, a position of the pair of support wheel arms on the pair of support wheel arm shafts corresponding to between the front ends of the front beam of the telescopic carriage and the rear beam of the telescopic carriage, and an upper end of one of the pair of support wheel arms being connected to a front end of the pair of support wheel arm shafts, and an upper end of the other of the pair of support wheel arms being connected to a rear end of the pair of support wheel arm shafts, the lower ends of the pair of support wheel arms extend downwards in an inclined shape and correspond to the upper part of the left supporting device of the floor type conveying frame, and the pair of support wheels are respectively and rotatably arranged at the lower ends of the pair of support wheel arms.

In still another embodiment of the present invention, the locking mechanism of the telescopic conveying frame comprises a handle hinged seat fixing plate, a handle hinged seat, a limiting column spring, a handle and a locking pin, wherein the handle hinged seat fixing plate is connected with the front side of the right end of the front beam of the telescopic conveying frame, the handle hinged seat is connected with the handle hinged seat fixing plate, one end of the limiting column penetrates through a limiting column abdicating hole formed in the handle hinged seat fixing plate and corresponds to a limiting column inserting hole formed in the front beam of the telescopic conveying frame, the other end of the limiting column is hinged with the handle through a limiting column hinged pin shaft, the limiting column spring is sleeved on the limiting column, one end of the limiting column spring is supported on the front beam of the telescopic conveying frame, the other end of the limiting column spring is supported on one side of the handle hinged seat fixing plate facing the front beam of the telescopic conveying frame, the locking pin is located below the handle hinged seat, and the locking pin faces one end of the front beam of the telescopic The locking pin hole corresponds to the telescopic conveyor frame locking hole, one end of the locking pin facing the handle is hinged with the lower end of the handle through the locking pin hinge shaft, the upper end of the handle is a free end and is provided with a holding ball head, the locking pin of the telescopic conveyor frame locking mechanism arranged on the front side of the right end of the telescopic conveyor frame front beam of one telescopic conveyor mechanism at the upper part in a group of telescopic conveyor mechanisms is locked or unlocked with the telescopic conveyor frame locking hole on the telescopic conveyor frame front beam of one telescopic conveyor mechanism at the lower part, and the locking pin of the telescopic conveyor frame locking mechanism arranged on the telescopic conveyor frame front beam of one telescopic conveyor mechanism directly supported above the floor-type conveyor mechanism is locked or unlocked with the floor-type conveyor frame locking hole.

In a more specific embodiment of the present invention, the left sliding guide mechanism is disposed at the left end of the front beam of the telescopic conveyor and the left end of the rear beam of the telescopic conveyor of the group of telescopic conveyors, and a front beam upper roller guide groove is formed at the front upper part in the length direction of the front beam of the telescopic conveyor, and a front beam lower roller guide groove is formed at the front lower part in the length direction; a rear beam upper roller guide groove is formed at the upper part of the rear side of the rear beam of the telescopic conveying frame in the length direction, and a rear beam lower roller guide groove is formed at the lower part of the rear side of the rear beam in the length direction; the left sliding guide mechanism arranged at the left end of the front beam of the telescopic conveying frame forms a matching relation of a rolling pair with the upper roller guide groove of the front beam and the lower roller guide groove of the front beam, and the left sliding guide mechanism arranged at the left end of the rear beam of the telescopic conveying frame forms a matching relation of the rolling pair with the upper roller guide groove of the rear beam and the lower roller guide groove of the rear beam; the right sliding guide mechanism is arranged at the right end of the front beam of the telescopic conveying frame and the right end of the rear beam of the telescopic conveying frame of the group of telescopic conveying frames, the right sliding guide mechanism arranged at the right end of the front beam of the telescopic conveying frame is also in matched relation with the roller guide groove in the front beam and the roller guide groove under the front beam to form a rolling pair, and the right sliding guide mechanism arranged at the right end of the rear beam of the telescopic conveying frame is also in matched relation with the roller guide groove in the rear beam and the roller guide groove under the rear beam to form a rolling pair.

In a further specific embodiment of the present invention, the left slide guide mechanism provided at the left end of the rear beam of the telescopic carrier is positioned to correspond to the left slide guide mechanism provided at the left end of the front beam of the telescopic carrier and has the same structure, the left slide guide mechanism provided at the left end of the front beam of the telescopic carrier includes a roller shaft fixing plate, a front beam lower guide roller and a front beam upper guide roller, the roller shaft fixing plate is fixed to the left end front side of the front beam of the telescopic carrier by a roller shaft fixing plate fixing screw, the front beam lower guide rollers have a pair corresponding to each other in the left-right direction and are each rotatably provided on a front beam lower guide roller shaft, the front beam lower guide roller shaft and the roller shaft fixing plate are fixed to the side of the front beam of the telescopic carrier, the front beam lower guide roller forms a rolling pair with the front beam lower roller guide groove of the upper one of two front beams adjacent to each other The upper guide roller of the front beam is positioned below the lower guide roller of the front beam on the roller shaft fixing plate and is rotatably arranged on the upper guide roller shaft of the front beam, the upper guide roller shaft of the front beam and one side of the roller shaft fixing plate, which faces the front beam of the telescopic conveying frame, are fixed, and the upper guide roller of the front beam and the upper roller guide groove of the front beam of the lower telescopic conveying frame in the upper and lower two adjacent telescopic conveying frame front beams form the matching relation of a rolling pair.

In a still more specific embodiment of the present invention, a telescopic carriage left-side limit position limiting plate is fixed to a front side of a right end of the telescopic carriage front beam, and the telescopic carriage left-side limit position limiting plate corresponds to a right side surface of the roller shaft fixing plate.

In yet another specific embodiment of the present invention, the right slide guide mechanism provided at the right end of the rear beam of the telescopic carrier is positioned to correspond to and have the same structure as the right slide guide mechanism provided at the right end of the front beam of the telescopic carrier, the right slide guide mechanism provided at the right end of the front beam of the telescopic carrier includes a roller shaft positioning plate, a front beam lower guide roller and a front beam upper guide roller, the roller shaft positioning plate is fixed to the front side of the right end of the front beam of the telescopic carrier by a roller shaft positioning plate fixing screw, the position of the front beam lower guide roller on the roller shaft positioning plate is above the front beam upper guide roller and is rotatably provided on a front beam lower guide roller shaft, the front beam lower guide roller shaft and the roller shaft positioning plate are fixed to a side of the front beam of the telescopic carrier, and the front beam lower guide roller is connected to an upper one of the two front beams adjacent to each other The front beam lower roller guide groove of the beam forms a matching relation of a rolling pair, a pair of front beam upper guide rolling wheels which are mutually corresponding to each other in the left-right direction are respectively and rotatably arranged on a front beam upper guide rolling wheel shaft, the front beam upper guide rolling wheel shaft and the roller shaft positioning plate are fixed towards one side of the front beam of the telescopic conveying frame, and the front beam upper guide rolling wheel and the front beam upper roller guide groove of the lower front beam of two adjacent front beams of the telescopic conveying frame form a matching relation of the rolling pair.

One of the technical effects of the technical scheme provided by the invention is that as the telescopic conveying frame supporting mechanisms which are equal to the group of telescopic conveying mechanisms in number and are arranged at the left ends of the group of telescopic conveying mechanisms are additionally arranged, the telescopic conveying mechanisms are supported on a floor in a use state to avoid deformation and meet the requirement of long-distance conveying; secondly, because a group of telescopic conveying mechanisms are adopted and the left ends of the telescopic conveying mechanisms are respectively provided with a telescopic conveying frame supporting mechanism, the conveying length can be expanded according to the requirement, and the requirements of deformation, shaking and shaking prevention can be ensured at the same time, so that the long-distance conveying requirement of the operation of the agricultural greenhouse can be fully met; thirdly, because the telescopic frame locking mechanism is additionally arranged, the upper and lower adjacent telescopic conveying mechanisms can be locked under the non-use state so as to meet the requirement of reliably storing in a superposed state, and can also be locked under the unfolding state so as to ensure the stability in use; fourthly, because the traction is performed by the conveying belt, an additional matched traction mechanism is not needed, the structure can be simplified, the inspection and maintenance workload in daily use can be reduced, and a good energy-saving effect can be embodied; fifthly, because the unfolding length is long when the foldable umbrella is unfolded, and the foldable umbrella can have the drawer-like effect when the foldable umbrella is folded, the foldable umbrella fully embodies the convenience of use and collection and has excellent space-saving effect when the foldable umbrella is collected.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the conveyor belt drive mechanism and the winding of the conveyor belt shown in fig. 1.

Fig. 3 is a left side schematic view of fig. 1.

Fig. 4 is a schematic view of the telescopic carriage locking mechanism shown in fig. 1.

Fig. 5 is a schematic view of a set of telescoping conveyors of the present invention deployed relative to a floor-based conveyor.

Detailed Description

In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of fig. 1, and thus, it should not be understood as a particular limitation to the technical solution provided by the present invention.

Referring to fig. 1 and 2, a floor-mounted conveyor 1 is shown, which floor-mounted conveyor 1 may also be referred to as a "basic conveyor" (the same applies hereinafter); a conveyor belt drive mechanism 2 is shown, the conveyor belt drive mechanism 2 being disposed at the lower part of the floor conveyor 1; a group of telescopic conveying mechanisms 3, wherein one telescopic conveying mechanism positioned at the lowest part in the group of telescopic conveying mechanisms 3 is in sliding fit with the upper part of the floor type conveying mechanism 1 and is superposed on the floor type conveying mechanism 1 in a storage state, and each upper and lower adjacent telescopic conveying mechanisms in the group of telescopic conveying mechanisms 3 form a sliding fit relationship with each other; a conveyor belt 4, which is in transmission connection with the conveyor belt driving mechanism 2 and is wound around the floor-type conveying mechanism 1 and is wound around the group of telescopic conveying mechanisms 3 in a state shown in fig. 2.

The technical key points of the technical scheme provided by the invention are as follows: the structure system of the telescopic belt conveyor further comprises telescopic conveyor frame supporting mechanisms 5 and telescopic conveyor frame locking mechanisms 6, the number of the telescopic conveyor frame supporting mechanisms 5 is equal to that of the group of telescopic conveyor mechanisms 3, the telescopic conveyor frame supporting mechanisms 5 are arranged at the left end of the group of telescopic conveyor mechanisms 3, and the telescopic conveyor frame locking mechanisms 6 are arranged on the front side of the right end of the group of telescopic conveyor mechanisms 3.

Continuing with fig. 1 and 2 and with reference to fig. 3 and 4, the floor-type conveying mechanism 1 includes a floor-type carrier front beam 11, a floor-type carrier rear beam 12, a floor-type carrier left belt roller 13, a floor-type carrier right belt roller 14, a floor-type carrier belt roller 15, a floor-type carrier belt tensioning roller 16, a floor-type carrier left supporting device 17, and a floor-type carrier right supporting device 18, wherein the floor-type carrier front beam 11 and the floor-type carrier rear beam 12 are parallel to each other in the longitudinal direction, the floor-type carrier front beam 11 and the middle portion of the floor-type carrier rear beam 12 are connected by floor-type carrier supporting connecting beams 19 distributed at intervals, the floor-type carrier left belt roller 13 is substantially of a drum-type construction, and both ends, namely the front and rear ends, are rotatably disposed on the floor-type carrier left belt roller 1311 through a floor-type carrier left belt roller bearing 131, and both ends of the floor stand left belt roller support shaft 1311 are fixed by screws between the floor stand front beam 11 and the floor stand rear beam 12, respectively, so that the floor stand left belt roller 13 is rotatably supported between the floor stand front beam 11 and the left end of the floor stand rear beam 12, the floor stand right belt roller 14 has the same structure as the floor stand left belt roller 13, i.e., substantially the same structure as a drum or roller shell type structure, both ends, i.e., front and rear ends, are rotatably provided on the floor stand right belt roller support shaft by floor stand right belt roller bearings, and both ends of the floor stand right belt roller support shaft are fixed by screws between the floor stand front beam 11 and the floor stand rear beam 12, respectively, so that the floor stand right belt roller 14 is rotatably supported between the floor stand front beam 11 and the right end of the floor stand rear beam 12, the floor-type carriage belt-supporting roller 15 is rotatably disposed between the floor-type carriage front beam 11 and the floor-type carriage rear beam 12 at a position corresponding to the right side of the floor-type carriage left belt-supporting roller 13 and is in contact with the lower portion of the outward-facing side of the aforementioned conveyor belt 4, specifically: the front and rear ends of the roller shaft of the floor stand carrier roller 15 are supported by a pair of carrier roller shaft holders 151, and the pair of carrier roller shaft holders 151 are fixed to the sides of the floor stand front beam 11 and the floor stand rear beam 12 facing each other. The number of the floor-type carrier belt rollers 15 may be plural at intervals. A floor conveyor belt tension roller 16 is rotatably provided on a floor conveyor belt tension roller support shaft 1611 through a floor conveyor belt tension roller bearing 161 at a position corresponding to a lower portion of the left side of the floor conveyor right conveyor belt roller 14, both ends of the floor conveyor belt tension roller support shaft 1611 are fixed between the floor conveyor front beam 11 and the floor conveyor rear beam 12 by screws, the floor conveyor belt tension roller 16 is similarly in contact with a lower portion of the outward side of the conveyor belt 4, a floor conveyor left support device 17 is provided between the floor conveyor front beam 11 and the left end surface of the floor conveyor rear beam 12 and is supported on the floor, and a floor conveyor right support device 18 is provided between the floor conveyor front beam 11 and the right end portion of the floor conveyor rear beam 12.

Since the structure of the floor type carrier left support device 17 is the same as that of the telescopic carrier support mechanism 5 which will be described in detail below, the applicant does not give any further details. The floor truck right support device 18 includes a floor truck right roller arm mount 181 fixed to a downward side of the right ends of the floor truck front beam 11 and the floor truck rear beam 12, a floor truck right roller arm 182 fixed to a bottom of the floor truck right roller arm mount 181, and a floor truck right roller 183 rotatably provided on the floor truck right roller arm 182. The floor truck right roller 183 and the floor truck left roller 171 of the structural system of the floor truck left support device 17 are supported on the floor.

As shown in fig. 1 and 2, the conveyor belt drive mechanism 2 is provided between the right ends of the floor truck front beam 11 and the floor truck rear beam 12; the lowest telescopic conveying mechanism in the group of telescopic conveying mechanisms 3 is in sliding fit with the upper parts of the floor type conveying frame front beam 11 and the floor type conveying frame rear beam 12, the group of telescopic conveying mechanisms 3 is overlapped on the upper part between the floor type conveying frame front beam 11 and the floor type conveying frame rear beam 12 in a storage state, and the telescopic conveying frame supporting mechanism 5 corresponds to the upper part of the floor type conveying frame left supporting device 17; the conveying belt 4 is sleeved on the left conveying belt roller 13 of the floor type conveying frame and the right conveying belt roller 14 of the floor type conveying frame; in the telescopic carriage lock mechanism 6, the one telescopic carriage lock mechanism 6 located at the lowermost position is locked to or unlocked from the floor frame front beam 11.

Preferably, a left floor-stand conveyor belt roller tension adjusting device 132 may be provided on each of the front floor-stand conveyor beam 11 and the rear floor-stand conveyor beam 12 at positions corresponding to the left floor-stand conveyor belt roller 13, and the roller shaft heads at both ends of the left floor-stand conveyor belt roller 13 are supported by the left floor-stand conveyor belt roller tension adjusting device 132.

Continuing with fig. 1 and 2, the preferred, but not absolutely limited, construction of the aforementioned conveyor belt drive mechanism 2 is as follows: the floor-type conveying frame comprises a transmission case body 21, a driving motor seat 22, a driving motor 23, a driving chain wheel 24a, a driven chain wheel 24b, a transmission chain 25, a conveying belt driving roller 26, a first conveying belt guide roller I27, a second conveying belt guide roller II 28 and an electric control box 29, wherein the transmission case body 21 is fixed between the right ends of the front beam 11 and the rear beam 12 of the floor-type conveying frame, the driving motor seat 22 is fixed in the transmission case body 21, the driving motor 23 is fixed on the driving motor seat 22, the driving motor 23 is electrically controlled and connected with the electric control box 29, the driving chain wheel 24a is fixed on a driving motor shaft 231 of the driving motor 23, one end of the transmission chain 25 is sleeved on the driving chain wheel 24a, the other end of the transmission chain wheel is sleeved on the driven chain wheel 24b, the driven chain wheel 24b is fixed on a conveying belt driving roller shaft 261 of the conveying belt driving roller 26, and the front end and the rear end of the conveying belt driving roller shaft 261 are respectively The drive roller bearing housing 2611 is provided on the transmission case housing 21, a first conveyor belt guide roller i 27 is rotatably supported between the floor frame front beam 11 and the floor frame rear beam 12 at a position corresponding to the upper left side of the conveyor belt drive roller 26, a second conveyor belt guide roller ii 28 is also rotatably supported between the floor frame front beam 11 and the floor frame rear beam 12 at a position corresponding to the upper right side of the conveyor belt drive roller 26, an electric control case 29 is fixed between the floor frame front beam 11 and the floor frame rear beam 12 at a position corresponding to the left side of the transmission case housing 21, and an operation button 291 is provided on a panel of the electric control case 29; the conveyor belt 4 is fitted over the conveyor belt driving roller 26, the conveyor belt first guide roller i 27, and the conveyor belt second guide roller ii 28.

When an operator operates the operation button 291 on the electrical control box 29, the driving motor 23 operates, the driving motor shaft 231 of the driving motor 23 drives the main sprocket 24a, the driving sprocket 24a drives the driving chain 25, the driving chain 25 drives the driven sprocket 24b, and the driven sprocket 24b drives the conveying belt driving roller shaft 261, so that the conveying belt driving roller 26 rotates, and the conveying belt driving roller 26 drives the conveying belt 4 to move.

The set of telescopic conveyor mechanisms 3 each comprise a telescopic conveyor frame front beam 31, a telescopic conveyor frame rear beam 32, a telescopic conveyor frame left conveyor belt roller 33, a telescopic conveyor frame right conveyor belt roller 34, a telescopic conveyor frame belt supporting roller 35, a conveyor belt first guide roller I36, a conveyor belt second guide roller II 37 and a telescopic conveyor frame connecting cross beam belt supporting plate 39, the telescopic conveyor frame front beam 31 and the telescopic conveyor frame rear beam 32 are parallel to each other in the length direction and are connected by telescopic conveyor frame supporting connecting cross beams 38 distributed at intervals between the middle parts of the telescopic conveyor frame front beam 31 and the telescopic conveyor frame rear beam 32, the telescopic conveyor frame left conveyor belt roller 33 is rotatably supported between the left ends of the telescopic conveyor frame front beam 31 and the telescopic conveyor frame rear beam 32 as described in detail for the floor conveyor frame left conveyor belt roller 13, and the telescopic conveyor frame right conveyor belt roller 34 is also rotatably supported on the telescopic conveyor belt as described in detail for the floor conveyor frame right conveyor belt roller 14 Between the right-hand end of the front frame beam 31 and the rear telescopic frame beam 32, the telescopic frame belt supporting rollers 35 are arranged between the middle parts of the front telescopic frame beam 31 and the rear telescopic frame beam 32 at intervals and are in contact with the lower part of one side of the conveying belt 4 facing outwards, specifically: the roller shaft heads at both ends of the telescopic carriage belt supporting roller 35 are rotatably supported by the telescopic carriage belt supporting roller shaft bearing housings 351, and the two telescopic carriage belt supporting roller shaft bearing housings 351 are fixed to the sides of the telescopic carriage front beam 31 and the telescopic carriage rear beam 32 facing each other in a state of being opposed to each other. A first conveyor belt guide roller i 36 and a second conveyor belt guide roller ii 37 are rotatably supported between the telescopic conveyor front beam 31 and the telescopic conveyor rear beam 32 in a state of corresponding left and right to each other, and the second conveyor belt guide roller ii 37 corresponds to a lower left side of the telescopic conveyor right conveyor roller 34; the conveying belt 4 is sequentially wound and sleeved on the first conveying belt guide roller I36, the left telescopic conveying frame conveying belt roller 33, the right telescopic conveying frame conveying belt roller 34 and the second conveying belt guide roller II 37 in a winding state illustrated in fig. 2, a telescopic conveying frame connecting beam belt supporting plate 39 is fixed on the upper portion of the telescopic conveying frame supporting connecting beam 38, and the conveying belt 4 is in contact with the upward side of the telescopic conveying frame connecting beam belt supporting plate 39.

The telescopic carriage support mechanism 5 is provided between the left end faces of the telescopic carriage front beam 31 and the telescopic carriage rear beam 32; floor-type carrier locking holes 111 are provided at intervals in the upper part in the longitudinal direction of the floor-type carrier front beam 11, telescopic carrier locking holes 311 are provided at intervals in the upper part in the longitudinal direction of the telescopic carrier front beam 31, the telescopic carrier locking mechanism 6 corresponding to the floor-type carrier front beam 11 and the floor-type carrier locking hole 111 are locked or unlocked with one telescopic carrier locking mechanism 6 located at the lowermost part, and the telescopic carrier locking mechanism 6 corresponding to the telescopic carrier front beam 31 is locked or unlocked with the telescopic carrier locking holes 311; in the group of telescopic conveying mechanisms 3, the telescopic conveying frame front beam 31 and the telescopic conveying frame rear beam 32 of two adjacent telescopic conveying mechanisms form a sliding fit relationship through the left sliding guide mechanism 7 and the right sliding guide mechanism 8 respectively; the floor type carrier left support device 17 has the same structure as the telescopic carrier support mechanism 5.

From the description of the preceding paragraph it can be ascertained without doubt that: each telescopic conveying mechanism in the group of telescopic conveying mechanisms 3 is provided with a telescopic conveying frame front beam 31 and a telescopic conveying frame rear beam 32, and the telescopic conveying frame front beam 31 and the telescopic conveying frame rear beam 32 of the structural system of the upper telescopic conveying mechanism and the telescopic conveying frame front beam 31 and the telescopic conveying frame rear beam 32 of the structural system of the lower telescopic conveying mechanism form a sliding fit relationship by means of the left sliding guide mechanism 7 and the right sliding guide mechanism 8.

Preferably, a telescopic carriage left belt roller tension adjusting device 331 is provided on each of the telescopic carriage front beam 31 and the telescopic carriage rear beam 32 at a position corresponding to each of the telescopic carriage left belt rollers 33, and the shaft heads of the roller shafts at both ends of the telescopic carriage left belt roller 33 are supported by the telescopic carriage left belt roller tension adjusting device 331.

Continuing with fig. 1 and 2, the preferred, but not absolutely limited, structure of the aforementioned telescopic carriage support mechanism 5 is as follows: the telescopic conveying frame comprises a pair of supporting wheel arm shafts 51, a pair of supporting wheel arms 52 and a pair of supporting wheels 53, wherein the pair of supporting wheel arm shafts 51 are parallel to each other up and down, the front ends of the pair of supporting wheel arm shafts 51 are fixed with the left end of the front beam 31 of the telescopic conveying frame, and the rear ends of the pair of supporting wheel arm shafts 51 are fixed with the left end of the rear beam 32 of the telescopic conveying frame, and specifically: an arm shaft male screw joint is formed at each of the front end and the rear end of the pair of support arm shafts 51, the arm shaft male screw joint located at the front end of the pair of support arm shafts 51 is fixed to a front beam lug 316 extending from the left end of the front beam 31 of the telescopic carriage by a nut, and the arm shaft male screw joint located at the rear end of the pair of support arm shafts 51 is fixed to a rear beam lug 323 corresponding to the front beam lug 316 by a nut and a position extending from the left end of the rear beam 32 of the telescopic carriage. The middle of the pair of support wheel arm shafts 51 corresponds to the left side of the telescopic carriage left conveying belt roller 33, the position of the pair of support wheel arms 52 on the pair of support wheel arm shafts 51 corresponds to the position between the front ends of the telescopic carriage front beam 31 and the telescopic carriage rear beam 32, that is, between the front beam lug 316 and the rear beam lug 323, and the upper end of one of the pair of support wheel arms 52 is connected to the front end of the pair of support wheel arm shafts 51, while the upper end of the other of the pair of support wheel arms 52 is connected to the rear end of the pair of support wheel arm shafts 51, the lower ends of the pair of support wheel arms 52 extend downward in an inclined manner and correspond to the upper side of the floor-type carriage left supporting device 17, and the pair of support wheels 53 are rotatably provided at the lower ends of the pair of support wheel arms 52, respectively.

In the present embodiment, since the number of the set of telescopic conveyor mechanisms 3 is four as illustrated, the number of the telescopic conveyor support mechanisms 5 is four, and the corresponding relationship from the top to the bottom as illustrated in fig. 1 and 2 is assumed, and the lowermost one of the four telescopic conveyor support mechanisms 5 in the undeployed state corresponds to the floor-type conveyor left support device 17. The applicant needs to state that: the number of the one set of telescopic conveyance mechanisms 3 is not limited to four exemplified in the present embodiment, and may be increased or decreased as necessary. The length of each telescopic conveyor may also vary as desired, for example 15-40m or 10-30m, etc.

Referring to fig. 4 in combination with fig. 1, the aforementioned locking mechanism 6 for telescopic conveying frame includes a handle hinged seat fixing plate 61, a handle hinged seat 62, a limiting column 63, a limiting column spring 64, a handle 65 and a locking pin 66, the handle hinged seat fixing plate 61 is connected to the front side of the right end of the front beam 31 of the telescopic conveying frame by a handle hinged fixing plate screw 612, the handle hinged seat 62 is connected to the handle hinged seat fixing plate 61 by a handle hinged seat screw 621, one end of the limiting column 63 passes through a limiting column relief hole formed on the handle hinged seat fixing plate 61 and corresponds to a limiting column insertion hole 611 formed on the front beam 31 of the telescopic conveying frame, the other end of the limiting column 63 is hinged to the handle 631 by a limiting column hinged pin shaft pin, the limiting column spring 64 is sleeved on the limiting column 63, one end of the limiting column spring 64 is supported on the front beam 31 of the telescopic conveying frame, the other end is supported on one side of the handle hinged seat fixing plate 61 facing the front beam 31 of the telescopic conveying, a lock pin 66 is located below the handle hinge base 62, one end of the lock pin 66 facing the front telescopic conveyor frame beam 31 corresponds to the lock pin hole 612 formed in the handle hinge base fixing plate 61 and also corresponds to the telescopic conveyor frame lock hole 311, one end of the lock pin 66 facing the handle 65 is hinged to the lower end of the handle 65 through a lock pin hinge shaft 661, the upper end of the handle 65 is configured as a free end and is provided with a grip ball 651, the lock pin 66 of the telescopic conveyor frame lock mechanism 6 provided on the front right end side of the front telescopic conveyor frame beam 31 of the upper telescopic conveyor mechanism of the group of telescopic conveyor mechanisms 3 is locked or unlocked with the telescopic conveyor frame lock hole 311 of the front telescopic conveyor frame beam 31 of the lower telescopic conveyor mechanism 3, and the telescopic conveyor frame lock mechanism provided on the front telescopic conveyor frame beam 31 of the one telescopic conveyor mechanism 3 directly supported above the floor-type conveyor mechanism 1 is configured to be locked or unlocked with the telescopic conveyor frame lock mechanism 311 The locking pin 66 of 6 is locked to or unlocked from the floor truck locking hole 111.

As described above, since the number of the one set of telescopic conveyor mechanisms 3 illustrated in the present embodiment is four, the number of the telescopic conveyor frame locking mechanisms 6 is also four, and the locking pin 66 of the structural system of the fourth, lowermost telescopic conveyor frame locking mechanism 6 from the top down is locked to or unlocked from the floor-type conveyor frame locking hole 111 in the floor-type conveyor frame front beam 11 of the floor-type conveyor mechanism 1, while the remaining three telescopic conveyor frame locking mechanisms 6 are locked to or unlocked from the top down. Taking the uppermost one of the three telescopic carriage locking mechanisms 6 as an example, the locking pin 66 thereof is locked to or unlocked from the telescopic carriage locking hole 311 of the telescopic carriage front beam 31 of the lower one of the telescopic carriage mechanisms, and so on.

The applicant briefly describes the process of locking the locking pin 66 with the telescopic carriage locking hole 311: the operator holds the pinch knob 651 and pushes the handle 65 backward, that is, in the direction of the front beam 31 of the telescopic carriage, so that the stopper pin 63 is displaced against the biasing force of the stopper pin spring 64, and the lock pin 66 is withdrawn from the telescopic carriage lock hole 311 to unlock the telescopic carriage, and the telescopic carriage mechanism 3 can be moved in the unlocked state. In the actual use process, the four telescopic conveying mechanisms 3 are unlocked one by one from bottom to top and pulled out leftwards, otherwise, the same example is adopted.

Fig. 4 also shows a pair of belt flange relief grooves 391 formed in the belt supporting plate 39 of the telescopic conveyor connecting beam, and a pair of conveyor flanges 41 on the conveyor belt 4, that is, on the inner side of the conveyor belt 4, are engaged with the pair of belt flange relief grooves 391 to ensure that the conveyor belt 4 can be well attached to the belt supporting plate 39 of the telescopic conveyor connecting beam. A floor-type carrier support link beam belt pallet is similarly provided on the upper portion of the floor-type carrier support link beam 19 and between the upper portions of the floor-type carrier front beam 11 and the floor-type carrier rear beam 12, and a belt pallet relief groove (shown in fig. 4) equivalent to the pair of belt flange relief grooves 391 is also formed in the floor-type carrier support link beam belt pallet.

Referring to fig. 3 in conjunction with fig. 1, the left sliding guide mechanism 7 is disposed at the left end of the front beam 31 of the telescopic carriage and the left end of the rear beam 32 of the telescopic carriage of the group of telescopic carriages 3, a front beam upper roller guide groove 313 is formed at the front upper part of the front beam 31 in the length direction, and a front beam lower roller guide groove 314 is formed at the front lower part in the length direction; a rear beam upper roller guide groove 321 is formed at the upper rear portion in the longitudinal direction of the rear beam 32 of the telescopic carriage, and a rear beam lower roller guide groove 322 is formed at the lower rear portion in the longitudinal direction; the left slide guide mechanism 7 provided at the left end of the front beam 31 of the telescopic carriage is in a rolling pair engagement relationship with the front beam upper roller guide groove 313 and the front beam lower roller guide groove 314, and the left slide guide mechanism 7 provided at the left end of the rear beam 32 of the telescopic carriage is in a rolling pair engagement relationship with the rear beam upper roller guide groove 321 and the rear beam lower roller guide groove 322; the right slide guide mechanism 8 is provided at the right end of the front telescopic carriage beam 31 and the right end of the rear telescopic carriage beam 32 of the group of telescopic carriages 3, and the right slide guide mechanism 8 provided at the right end of the front telescopic carriage beam 31 is similarly in a rolling pair engagement relationship with the front upper beam roller guide groove 313 and the front lower beam roller guide groove 314, while the right slide guide mechanism 8 provided at the right end of the rear telescopic carriage beam 32 is similarly in a rolling pair engagement relationship with the rear upper beam roller guide groove 321 and the rear lower beam roller guide groove 322.

Continuing with fig. 3 and in conjunction with fig. 1, since the position of the aforementioned left slide guide mechanism 7 provided at the left end of the aforementioned telescopic carriage rear beam 32 corresponds to the position of the left slide guide mechanism 7 provided at the left end of the aforementioned telescopic carriage front beam 31 and the structure is the same, the applicant will describe in detail only this left slide guide mechanism 7 provided at the left end of the telescopic carriage front beam 31 below: comprises a roller shaft fixing plate 71, a front beam lower guide roller 72 and a front beam upper guide roller 73, the roller shaft fixing plate 71 is fixed with the front side of the left end of the front beam 31 of the telescopic conveying frame through a roller shaft fixing plate fixing screw 711, the front beam lower guide roller 72 has a pair corresponding to each other left and right and is respectively and rotatably arranged on the front beam lower guide roller shaft 721, the front beam lower guide roller shaft 721 and the roller shaft fixing plate 71 are fixed towards one side of the front beam 31 of the telescopic conveying frame, the front beam lower guide roller 72 and the front beam lower roller guide groove 314 of the upper telescopic conveying frame front beam 31 of two adjacent front beams 31 of the telescopic conveying frame form a matching relationship of a rolling pair, the position of the front beam upper guide roller 73 on the roller shaft fixing plate 71 is positioned below the front beam lower guide roller 72 and is rotatably arranged on the front beam upper guide roller shaft 731, and the front beam upper guide roller shaft 731 and the roller shaft 731 is fixed with the roller shaft fixing plate 71 towards one side of the front beam 31 of the telescopic conveying frame, the front beam upper guide roller 73 is in a rolling pair engagement relationship with the front beam upper roller guide groove 313 of the lower one 31 of the two vertically adjacent telescopic carriage front beams 31.

Preferably, as shown in fig. 1, a telescopic carriage left-side movement limit position limiting plate 315 is fixed to the front side of the right end of the telescopic carriage front beam 31, and the telescopic carriage left-side movement limit position limiting plate 315 corresponds to the right side surface of the roller shaft fixing plate 71. When the left limit position limiting plate 315 of the telescopic carriage in one set of telescopic conveying mechanisms 3 touches the right side of the roller shaft fixing plate 71, it indicates that the corresponding telescopic conveying mechanism 3 cannot be further extended leftward.

Continuing to refer to fig. 4 in conjunction with fig. 1, since the position of the right slide guide mechanism 8 provided at the right end of the rear telescopic carriage beam 32 corresponds to the position of the right slide guide mechanism 8 provided at the right end of the front telescopic carriage beam 31 and the structure is the same, the applicant will describe in detail only the right slide guide mechanism 8 provided at the right end of the front telescopic carriage beam 31 below: comprises a roller shaft positioning plate 81, a front beam lower guide rolling wheel 82 and a front beam upper guide rolling wheel 83, wherein the roller shaft positioning plate 81 is fixed with the front side of the right end of the front beam 31 of the telescopic conveying frame through a roller shaft positioning plate fixing screw 811, the front beam lower guide rolling wheel 82 is positioned above the front beam upper guide rolling wheel 83 on the roller shaft positioning plate 81 and is rotatably arranged on a front beam lower guide rolling wheel shaft 821, the front beam lower guide rolling wheel shaft 821 and the roller shaft positioning plate 81 are fixed towards one side of the front beam 31 of the telescopic conveying frame, the front beam lower guide rolling wheel 82 and the front beam lower roller guide groove 314 of the upper telescopic conveying frame front beam 31 of two adjacent front beams 31 form a matching relation of a rolling pair, the front beam upper guide rolling wheels 83 are provided with a pair corresponding to each other left and right and are respectively rotatably arranged on a front beam upper guide rolling wheel shaft 831, the front beam upper guide roller wheel 831 and the roller shaft positioning plate 81 are fixed to the side of the front beam 31 of the telescopic carriage, and the front beam upper guide roller wheel 83 and the front beam upper roller guide groove 313 of the lower front beam 31 of two adjacent front beams 31 of the telescopic carriage form a rolling pair matching relationship.

Since the aforementioned winding of the conveyor belt 4 is disclosed in detail in fig. 2 and the understanding of the extension and retraction is not confusing according to the general knowledge, the applicant is not further described.

Referring to fig. 5 in conjunction with fig. 1 to 4, the set of telescopic conveying mechanisms 3 shown in fig. 5 is shifted from being originally stacked on the floor-type conveying mechanism 1 to being shifted to the left end of the floor-type conveying mechanism 1, and the process is implemented as follows: the operator operates the telescopic carriage locking mechanism 6 on the lowermost one of the telescopic conveying mechanisms 3, i.e., the fourth telescopic conveying mechanism 3 from the top to the bottom, and the operation process is described above and will not be described again. In a state where the locking pin 66 is withdrawn from the floor frame locking hole 111, the operator pulls the handle 65 to move the group of telescopic conveyor mechanisms 3 to the left in a bowman state until the limit plate 315 of the leftward movement limit of the telescopic conveyor mechanism comes into contact with the roller shaft fixing plate 71, indicating that the leftward movement limit is reached, and in this limit state, the pair of support wheels 53 are grounded, i.e., supported on the floor 9. In the process of moving the telescopic conveyor 3 from right to left along the floor-standing conveyor 1, the front-beam upper guide roller 73 and the rear-beam upper guide roller 83 move from right to left along floor-standing conveyor roller grooves corresponding to the front-beam upper roller guide groove 313 and the rear-beam upper roller guide groove 321, respectively, formed in the upper portions in the longitudinal direction of the floor-standing conveyor front beam 11 and the floor-standing conveyor rear beam 12 of the floor-standing conveyor 1, and vice versa. Since the operation of the telescopic conveyor locking mechanism 6 is the same when a group of telescopic conveyor mechanisms 3 are pulled out one by one from bottom to top to left as required, the applicant does not describe the operation one by one, and what needs to be described is that: after any one of the four telescopic conveying mechanisms 3 is pulled out to the left to the limit degree, the telescopic conveying mechanisms are high in the right and low in the left, and a step is formed between adjacent telescopic conveying mechanisms (namely, the adjacent part is also called as a border part), specifically, a step is formed at the head-tail adjacent part so as to meet the requirement of division operation of each station of the vegetable and fruit greenhouse (the invention can have five stations for division operation) or other requirements required by operation. The conveyor belt 4 also has a traction function during the aforementioned pulling-out or retracting process. In the actual use process, the specific number of the groups of telescopic conveying mechanisms 3 which participate in the work, namely the expansion can be determined according to the requirement.

In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and truly realizes the technical effects of the applicant in the technical effect column.

Claims

1. A telescopic belt conveyor comprises a floor conveying mechanism (1); the conveying belt driving mechanism (2), the conveying belt driving mechanism (2) is arranged at the lower part of the floor conveying mechanism (1); the group of telescopic conveying mechanisms (3) are in sliding fit with the upper parts of the floor type conveying mechanisms (1) and are stacked on the floor type conveying mechanisms (1) in a storage state, and each upper and lower adjacent telescopic conveying mechanisms in the group of telescopic conveying mechanisms (3) form a sliding fit relation with each other; the conveying belt (4) is in transmission connection with the conveying belt driving mechanism (2) and is wound on the floor conveying mechanism (1) and the group of telescopic conveying mechanisms (3), the conveying belt (4) is characterized by further comprising telescopic conveying frame supporting mechanisms (5) and telescopic conveying frame locking mechanisms (6), the number of the telescopic conveying frames (3) is equal to that of the telescopic conveying frames (5), the telescopic conveying frame supporting mechanisms (5) are arranged at the left ends of the group of telescopic conveying mechanisms (3), and the telescopic conveying frame locking mechanisms (6) are arranged on the front sides of the right ends of the group of telescopic conveying mechanisms (3).

2. The telescopic belt conveyor according to claim 1, wherein the floor conveyor (1) comprises a floor conveyor front beam (11), a floor conveyor rear beam (12), a floor conveyor left conveyor belt roller (13), a floor conveyor right conveyor belt roller (14), a floor conveyor belt roller (15), a floor conveyor belt tension roller (16), a floor conveyor left support device (17), and a floor conveyor right support device (18), wherein the floor conveyor front beam (11) and the floor conveyor rear beam (12) are parallel to each other in the longitudinal direction, the floor conveyor front beam (11) and the floor conveyor rear beam (12) are connected by floor conveyor support connecting cross beams (19) distributed at intervals in the middle part of the floor conveyor rear beam (12), the floor conveyor left conveyor belt roller (13) is rotatably supported between the floor conveyor front beam (11) and the left end of the floor conveyor rear beam (12), a floor-type carriage right conveying belt roller (14) is rotatably supported between the right ends of a floor-type carriage front beam (11) and a floor-type carriage rear beam (12), a floor-type carriage belt roller (15) is rotatably arranged between the floor-type carriage front beam (11) and the floor-type carriage rear beam (12) at a position corresponding to the right side of the floor-type carriage left conveying belt roller (13) and is contacted with the lower part of the outward side of the conveying belt (4), a floor-type carriage belt tensioning roller (16) is rotatably supported between the floor-type carriage front beam (11) and the floor-type carriage rear beam (12) at a position corresponding to the lower part of the left side of the floor-type carriage right conveying belt roller (14) and is also contacted with the lower part of the outward side of the conveying belt (4), a floor-type carriage left supporting device (17) is arranged between the left end faces of the floor-type carriage front beam (11) and the floor-type carriage rear beam (12) and is supported on the floor, the right supporting device (18) of the floor type conveying frame is arranged between the right end bottoms of the front beam (11) and the rear beam (12) of the floor type conveying frame and is also supported on the floor; the conveying belt driving mechanism (2) is arranged between the right ends of the front beam (11) and the rear beam (12) of the floor type conveying frame; the group of telescopic conveying mechanisms (3) is in sliding fit with the upper parts of the front beam (11) and the rear beam (12) of the floor type conveying frame, the group of telescopic conveying mechanisms (3) is overlapped on the upper part between the front beam (11) and the rear beam (12) of the floor type conveying frame in a storage state, and the telescopic conveying frame supporting mechanism (5) corresponds to the upper part of the left supporting device (17) of the floor type conveying frame; the conveying belt (4) is sleeved on the left conveying belt roller (13) of the floor type conveying frame and the right conveying belt roller (14) of the floor type conveying frame; and in the telescopic conveying frame locking mechanisms (6), one telescopic conveying frame locking mechanism (6) positioned at the lowest part is locked with or unlocked from the front beam (11) of the floor type conveying frame.

3. The telescopic belt conveyor according to claim 2, wherein the conveyor belt driving mechanism (2) comprises a transmission case body (21), a driving motor base (22), a driving motor (23), a driving sprocket (24a), a driven sprocket (24b), a driving chain (25), a conveyor belt driving roller (26), a conveyor belt first guide roller I (27), a conveyor belt second guide roller II (28) and an electric control box (29), the transmission case body (21) is fixed between the front beam (11) of the floor type conveyor frame and the right end of the rear beam (12) of the floor type conveyor frame, the driving motor base (22) is fixed in the transmission case body (21), the driving motor (23) is fixed on the driving motor base (22) and the driving motor (23) is electrically and controllably connected with the electric control box (29), the driving sprocket (24a) is fixed on a driving motor shaft (231) of the driving motor (23), one end of a transmission chain (25) is sleeved on a driving sprocket (24a), the other end is sleeved on a driven sprocket (24b), the driven sprocket (24b) is fixed on a conveying belt driving roller shaft (261) of a conveying belt driving roller (26), the front end and the rear end of the conveying belt driving roller shaft (261) are respectively and rotatably supported on a driving roller shaft bearing seat (2611), the driving roller shaft bearing seat (2611) is arranged on the transmission box body (21), a conveying belt first guiding roller I (27) is rotatably supported between the floor type conveying frame front beam (11) and the floor type conveying frame rear beam (12) at a position corresponding to the upper left side of the conveying belt driving roller (26), a conveying belt second guiding roller II (28) is also rotatably supported between the floor type conveying frame front beam (11) and the floor type conveying frame rear beam (12) at a position corresponding to the upper right side of the conveying belt driving roller (26), the electric control box (29) is fixed between the front beam (11) and the rear beam (12) of the floor type conveying frame at the position corresponding to the left side of the transmission box body (21); the conveying belt (4) is sleeved on the conveying belt driving roller (26), the first guiding roller I (27) of the conveying belt and the second guiding roller II (28) of the conveying belt.

4. The telescopic belt conveyor according to claim 2, wherein each of the plurality of telescopic conveyor mechanisms (3) comprises a front telescopic conveyor frame beam (31), a rear telescopic conveyor frame beam (32), a left telescopic conveyor frame belt roller (33), a right telescopic conveyor frame belt roller (34), a belt roller (35), a first conveyor belt guide roller I (36), a second conveyor belt guide roller II (37), and a belt roller bracket (39), wherein the front telescopic conveyor frame beam (31) and the rear telescopic conveyor frame beam (32) are longitudinally parallel to each other and are connected by telescopic conveyor frame support connecting cross beams (38) distributed at intervals between the middle portions of the front telescopic conveyor frame beam (31) and the rear telescopic conveyor frame beam (32), the left telescopic conveyor frame belt roller (33) is rotatably supported between the left ends of the front telescopic conveyor frame beam (31) and the rear telescopic conveyor frame beam (32), a telescopic conveyor frame right conveying belt roller (34) is rotatably supported between the right ends of a telescopic conveyor frame front beam (31) and a telescopic conveyor frame rear beam (32), telescopic conveyor frame belt supporting rollers (35) are arranged between the middle parts of the telescopic conveyor frame front beam (31) and the telescopic conveyor frame rear beam (32) at intervals and are in contact with the lower part of one side, facing outwards, of the conveying belt (4), a first conveying belt guide roller I (36) and a second conveying belt guide roller II (37) are rotatably supported between the telescopic conveyor frame front beam (31) and the telescopic conveyor frame rear beam (32) in a state of corresponding left and right to each other, and the second conveying belt guide roller II (37) corresponds to the lower part of the left side of the telescopic conveyor frame right conveying belt roller (34); the conveying belt (4) is sequentially wound and sleeved on a first conveying belt guide roller I (36), a left conveying belt roller (33) of the telescopic conveying frame, a right conveying belt roller (34) of the telescopic conveying frame and a second conveying belt guide roller II (37) in a winding state, and a belt supporting plate (39) of a connecting beam of the telescopic conveying frame is fixed on the upper part of a supporting and connecting beam (38) of the telescopic conveying frame; the telescopic conveying frame supporting mechanism (5) is arranged between the left end faces of the front beam (31) and the rear beam (32) of the telescopic conveying frame; floor-type conveying frame locking holes (111) are formed in the upper portion of the floor-type conveying frame front beam (11) in the length direction at intervals, telescopic conveying frame locking holes (311) are formed in the upper portion of the telescopic conveying frame front beam (31) in the length direction at intervals, the telescopic conveying frame locking mechanism (6) corresponding to the floor-type conveying frame front beam (11) is locked or unlocked with the floor-type conveying frame locking holes (111), and the telescopic conveying frame locking mechanism (6) corresponding to the telescopic conveying frame front beam (31) is locked or unlocked with the telescopic conveying frame locking holes (311); in the group of telescopic conveying mechanisms (3), the telescopic conveying frame front beam (31) and the telescopic conveying frame rear beam (32) of two adjacent telescopic conveying mechanisms form a sliding fit relation through a left sliding guide mechanism (7) and a right sliding guide mechanism (8); the structure of the floor type conveying frame left supporting device (17) is the same as that of the telescopic conveying frame supporting mechanism (5).

5. The telescopic belt conveyor according to claim 4, characterized in that the telescopic carriage support mechanism (5) comprises a pair of support wheel arm shafts (51), a pair of support wheel arms (52), and a pair of support wheels (53), the pair of support wheel arm shafts (51) being parallel to each other up and down and the front ends of the pair of support wheel arm shafts (51) being fixed to the left end of the telescopic carriage front beam (31) and the rear ends of the pair of support wheel arm shafts (51) being fixed to the left end of the telescopic carriage rear beam (32), the middle of the pair of support wheel arm shafts (51) corresponding to the left side of the telescopic carriage left conveyor belt roller (33), the position of the pair of support wheel arms (52) on the pair of support wheel arm shafts (51) corresponding to between the front ends of the telescopic carriage front beam (31) and the telescopic carriage rear beam (32), and the upper end of one of the pair of support wheel arms (52) being connected to the front end of the pair of support wheel arm shafts (51), and the upper end of the other supporting wheel arm in the pair of supporting wheel arms (52) is connected with the rear end of the pair of supporting wheel arm shafts (51), the lower ends of the pair of supporting wheel arms (52) extend downwards in an inclined shape and correspond to the upper part of the floor type conveying frame left supporting device (17), and the pair of supporting wheels (53) are respectively and rotatably arranged at the lower ends of the pair of supporting wheel arms (52).

6. The telescopic belt conveyor according to claim 4, wherein the telescopic conveyor frame locking mechanism (6) comprises a handle hinged seat fixing plate (61), a handle hinged seat (62), a limiting column (63), a limiting column spring (64), a handle (65) and a locking pin (66), the handle hinged seat fixing plate (61) is arranged at the front side of the right end of the telescopic conveyor frame front beam (31), the handle hinged seat (62) is connected with the handle hinged seat fixing plate (61), one end of the limiting column (63) penetrates through a limiting column abdicating hole (611) formed in the handle hinged seat fixing plate (61) and corresponds to a limiting column inserting hole (312) formed in the telescopic conveyor frame front beam (31), the other end of the limiting column (63) is hinged with the handle (65) through a limiting column hinged pin shaft (631), and the limiting column spring (64) is sleeved on the limiting column (63), one end of the limiting column spring (64) is supported on the telescopic conveying frame front beam (31), the other end is supported on one side, facing the telescopic conveying frame front beam (31), of the handle hinged seat fixing plate (61), a locking pin (66) is located below the handle hinged seat (62), one end, facing the telescopic conveying frame front beam (31), of the locking pin (66) corresponds to a locking pin hole (612) formed in the handle hinged seat fixing plate (61) and also corresponds to the telescopic conveying frame locking hole (311), one end, facing the handle (65), of the locking pin (66) is hinged to the lower end of the handle (65) through a hinge pin (661), the upper end of the handle (65) is formed into a free end and is provided with a holding and pinching ball head (651), and the locking pin of the telescopic conveying frame locking mechanism (6) on the front side of the right end of the telescopic conveying frame front beam (31) of one telescopic conveying mechanism at the upper part of the group of the telescopic conveying mechanisms (3) is hinged to a free end (66) And a locking pin (66) of the telescopic conveyor frame locking mechanism (6) arranged on the telescopic conveyor frame front beam (31) of one telescopic conveyor mechanism (3) directly supported above the floor-type conveyor mechanism (1) is locked with or unlocked from the floor-type conveyor frame locking hole (111).

7. The telescopic belt conveyor according to claim 4, wherein said left slide guide mechanism (7) is provided at a left end of said telescopic conveyor frame front beam (31) and a left end of a telescopic conveyor frame rear beam (32) of said group of telescopic conveyor frames (3), a front beam upper roller guide groove (313) is formed at an upper portion of a front side in a length direction of the telescopic conveyor frame front beam (31), and a front beam lower roller guide groove (314) is formed at a lower portion of the front side in the length direction; a rear beam upper roller guide groove (321) is formed at the upper part of the rear side of the rear beam (32) of the telescopic conveying frame in the length direction, and a rear beam lower roller guide groove (322) is formed at the lower part of the rear side of the rear beam in the length direction; the left sliding guide mechanism (7) arranged at the left end of the front beam (31) of the telescopic conveying frame forms a matching relation of a rolling pair with the upper roller guide groove (313) of the front beam and the lower roller guide groove (314) of the front beam, and the left sliding guide mechanism (7) arranged at the left end of the rear beam (32) of the telescopic conveying frame forms a matching relation of a rolling pair with the upper roller guide groove (321) of the rear beam and the lower roller guide groove (322) of the rear beam; the right sliding guide mechanism (8) is arranged at the right end of the front telescopic conveying frame beam (31) and the right end of the rear telescopic conveying frame beam (32) of the group of telescopic conveying frames (3), the right sliding guide mechanism (8) arranged at the right end of the front telescopic conveying frame beam (31) is also matched with the front beam upper roller guide groove (313) and the front beam lower roller guide groove (314) to form a rolling pair, and the right sliding guide mechanism (8) arranged at the right end of the rear telescopic conveying frame beam (32) is also matched with the rear beam upper roller guide groove (321) and the rear beam lower roller guide groove (322) to form a rolling pair.

8. The telescopic belt conveyor according to claim 7, wherein the position of said left slide guide mechanism (7) provided at the left end of said telescopic conveyor frame rear beam (32) is corresponding to the position of said left slide guide mechanism (7) provided at the left end of said telescopic conveyor frame front beam (31) and the structure is the same, said left slide guide mechanism (7) provided at the left end of said telescopic conveyor frame front beam (31) comprises a roller shaft fixing plate (71), a front beam lower guide roller (72) and a front beam upper guide roller (73), said roller shaft fixing plate (71) is fixed to the left end front side of said telescopic conveyor frame front beam (31) by a roller shaft fixing plate fixing screw (711), said front beam lower guide rollers (72) have a pair corresponding to each other left and right and are each rotatably provided on a front beam lower guide roller shaft (721), and said front beam lower guide roller shaft (721) and said roller shaft fixing plate (71) face said telescopic conveyor frame front beam (31) ) The front beam lower guide roller (72) and the front beam lower roller guide groove (314) of the upper telescopic conveyor front beam (31) of the two upper and lower adjacent telescopic conveyor front beams (31) form a rolling pair matching relationship, the position of the front beam upper guide roller (73) on the roller shaft fixing plate (71) is positioned below the front beam lower guide roller (72) and is rotatably arranged on a front beam upper guide roller shaft (731), the front beam upper guide roller shaft (731) and the roller shaft fixing plate (71) are fixed towards one side of the telescopic conveyor front beam (31), and the front beam upper guide roller (73) and the front beam upper roller guide groove (313) of the lower telescopic conveyor front beam (31) of the two upper and lower adjacent telescopic conveyor front beams (31) form a rolling pair matching relationship.

9. The telescopic belt conveyor according to claim 8, wherein a telescopic conveyor left-side limit position plate (315) is fixed to the front side of the right end of the telescopic conveyor front beam (31), and the telescopic conveyor left-side limit position plate (315) corresponds to the right side surface of the roller shaft fixing plate (71).

10. The telescopic belt conveyor according to claim 8, wherein the position of the right slide guide mechanism (8) provided at the right end of the telescopic conveyor frame rear beam (32) is corresponding to the position of the right slide guide mechanism (8) provided at the right end of the telescopic conveyor frame front beam (31) and the structure is the same, the right slide guide mechanism (8) provided at the right end of the telescopic conveyor frame front beam (31) includes a roller shaft positioning plate (81), a front beam lower guide roller (82) and a front beam upper guide roller (83), the roller shaft positioning plate (81) is fixed to the right end front side of the telescopic conveyor frame front beam (31) by a roller shaft positioning plate fixing screw (811), the position of the front beam lower guide roller (82) on the roller shaft positioning plate (81) is above the front beam upper guide roller (83) and is rotatably provided on the front beam lower guide roller (821), the front beam lower guide rolling wheel shaft (821) and the roller shaft positioning plate (81) are fixed towards one side of the front beam (31) of the telescopic conveying frame, the front beam lower guide rolling wheel (82) and the front beam lower roller guide groove (314) of the upper telescopic conveying frame front beam (31) in the two adjacent front beams (31) form a matching relation of a rolling pair, the front beam upper guide rolling wheels (83) are provided with a pair which are mutually corresponding left and right and are respectively and rotatably arranged on the front beam upper guide rolling wheel shaft (831), and a front beam upper guide rolling wheel shaft (831) and a roller shaft positioning plate (81) are fixed towards one side of the front beam (31) of the telescopic conveying frame, and a front beam upper guide rolling wheel (83) and a front beam upper roller guide groove (313) of a lower telescopic conveying frame front beam (31) of two adjacent front beams (31) of the telescopic conveying frame form a matching relation of a rolling pair.