CN112093237B

CN112093237B - Logistics distribution box

Info

Publication number: CN112093237B
Application number: CN202011213280.6A
Authority: CN
Inventors: 张羽
Original assignee: Winit Weifang Information Technology Co ltd
Current assignee: Shenzhen Winit Information Technology Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-01-26
Anticipated expiration: 2040-11-04
Also published as: CN112093237A

Abstract

The invention relates to the field of logistics transportation, in particular to a logistics distribution box, wherein a bottom supporting plate is movably arranged in a box body up and down, the left end and the right end of the bottom supporting plate are respectively rotatably provided with a first gear, the inner sides of the left side wall and the right side wall of the box body are respectively and fixedly provided with a first rack meshed with the corresponding first gear, a top supporting plate is arranged above the bottom supporting plate, the left side and the right side of the bottom of the top supporting plate are respectively and fixedly provided with two vertically extending supporting rods, the upper ends of the outer sides of the supporting rods are fixedly provided with second racks meshed with the corresponding first gears, and a supporting spring is connected between the; when the box body is bumped in the transportation process, the top supporting plate moves downwards relative to the bottom supporting plate, and simultaneously, the bottom supporting plate moves downwards relative to the box body, so that the top supporting plate moves downwards relative to the box body by a larger stroke, and a better buffering effect is provided for objects.

Description

Logistics distribution box

Technical Field

The invention relates to the field of logistics transportation, in particular to a logistics distribution box.

Background

With the continuous development and progress of the logistics industry, the transportation volume and the types of articles are gradually increased. The logistics boxes are essential to the logistics industry and are mainly used for storing articles.

But current thing flow box structure is simple relatively, and stability is relatively poor, has the condition of jolting or rocking in the in-process of transportation unavoidably, and in order to increase the stability of article in thing flow box inside, the general way is to add some anticollision cotton or other article are fixed in the thing flow box, but when the commodity circulation is very big, if all add the protection of anticollision cotton at every turn, then need waste a lot of resources, increased the cost of transportation.

In addition, the size and the height of different articles are all different, and current thing flow box is mostly the structure of fixed size to be unfavorable for the fixed of article in the thing flow box.

Disclosure of Invention

The invention aims to provide a logistics distribution box which can provide stable protection for objects so as to solve the problems in the prior art.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a logistics distribution case, includes front side open-ended box, the opening part movable mounting of box has the apron, movable mounting has the bottom support board about in the box, both ends rotate respectively about the bottom support board and install first gear, the inboard of lateral wall about the box respectively fixed mounting have with corresponding first rack that first gear meshed, the vertical extension of first rack, the top of bottom support board is equipped with top support board, relative fixed mounting has the bracing piece of two vertical extensions about top support board's bottom, movable mounting is in about the bracing piece on the bottom support board, the upper end fixed mounting in the outside of bracing piece has with corresponding first gear meshed's second rack, bottom support board with be connected with supporting spring between the top support board, bottom support board with be equipped with between the top support board and make first gear and corresponding second rack And a limiting mechanism for engaging or disengaging the strips.

As a preferred technical scheme, vertically extending guide posts are fixedly mounted at four corners in the box body respectively, and guide holes corresponding to the four guide posts one by one are formed in the bottom supporting plate; notches are respectively formed in the left end and the right end of the bottom supporting plate, and the two first gears are rotatably installed in the corresponding notches respectively; the bottom supporting plate is provided with two jacks in one-to-one correspondence with the supporting rods, and the jacks and the corresponding positions of the second rack are provided with through holes communicated with the corresponding notches.

As a preferred technical scheme, the limiting mechanism comprises a vertically extending limiting post fixedly mounted at the bottom of the top supporting plate, a mounting hole matched with the limiting post is formed in the bottom supporting plate, a mounting cavity is formed in the bottom supporting plate, a through hole transversely communicated with the mounting hole is formed in one side of the mounting cavity, a limiting pin is movably mounted in the through hole, a vertically extending sliding groove is formed in one side, close to the limiting pin, of the limiting post, a limiting groove located below the sliding groove is further formed in one side, close to the limiting pin, of the limiting post, when the limiting pin is located in the sliding groove, the second rack is in a state of being meshed with the first gear, and when the limiting pin is located in the limiting groove, the second rack is in a state of being separated from the first gear; one end fixed mounting of spacer pin has the dog that is located the installation intracavity, the dog is kept away from one side of spacer pin with be equipped with locking spring between the lateral wall of installation chamber, the bottom of dog is fixed mounting still has the shifting block, the bottom sprag with the corresponding department in shifting block position is equipped with the rectangular shape hole, the shifting block is followed the rectangular shape hole is worn out extremely the outside of bottom sprag board can be followed the rectangular shape hole removes.

As a further improvement, two clamping plates are oppositely arranged on the left and right sides in the box body, and both the two clamping plates are positioned above the top supporting plate; the left side wall and the right side wall of the box body are respectively internally provided with a longitudinally extending sliding cavity, two sliding blocks are oppositely arranged in the sliding cavities, one side of each sliding cavity is provided with a through hole which extends inwards and penetrates through the side wall of the box body, first connecting rods which are in one-to-one correspondence with the two sliding blocks are arranged in the through holes, one end of each first connecting rod is hinged to the corresponding sliding block, and the other end of each first connecting rod is hinged to the corresponding clamping plate; the sliding cavity is internally provided with bidirectional studs extending in the same direction, the outer sides of the bidirectional studs are relatively provided with external threads with opposite rotation directions, the bidirectional studs are rotatably arranged in the sliding cavity through polished rods at the end parts, and the two sliding blocks are respectively in threaded connection with the external threads with different rotation directions of the bidirectional studs; and the box body is provided with a linkage mechanism for driving the bidirectional stud to rotate.

As a preferable technical scheme, a shallow groove communicated with the opening of the box body is formed in the front side of the box body, two transversely extending hinge shafts are oppositely and fixedly installed on the left and right sides of the lower end of the cover plate, and the cover plate is rotatably installed in the shallow groove through the two hinge shafts; and an anti-theft lock is arranged between the cover plate and the shallow groove.

As a preferred technical scheme, the linkage mechanism comprises two driving cavities arranged in the left side wall and the right side wall of the box body, the driving cavities are communicated with the corresponding sliding cavities, small shafts extending transversely are rotatably arranged in the driving cavities, a first bevel gear is coaxially and fixedly arranged on the bidirectional stud, and a second bevel gear meshed with the first bevel gear is coaxially and fixedly arranged on the small shafts; sliding channels extending forwards and backwards are respectively arranged in the left side wall and the right side wall of the box body and are communicated with the corresponding driving cavities, sliding plates are arranged in the sliding channels in a sliding mode, third gears are coaxially and fixedly arranged on the small shafts, and third racks meshed with the third gears are fixedly arranged on the sliding plates; and channels for communicating the corresponding sliding channels with the shallow grooves are respectively arranged in the left side wall and the right side wall of the box body, a second connecting rod is arranged in each channel, one end of each second connecting rod is hinged on the corresponding sliding plate, and the other end of each second connecting rod is hinged on the cover plate.

As a preferable technical scheme, the splint comprises a splint body, an auxiliary cavity is arranged in the splint body, an auxiliary hole which extends inwards and penetrates through the splint body is arranged on one side of the auxiliary cavity, a clamping block is movably arranged in the auxiliary hole, a baffle plate positioned in the auxiliary cavity is fixedly arranged on the clamping block, and a reset spring is arranged between the inner side of the baffle plate and the side wall of the auxiliary cavity; a longitudinally extending slide way is arranged on one side of the auxiliary cavity far away from the auxiliary hole, a push block is arranged in the slide way in a sliding mode, and a wedge-shaped block is fixedly arranged at the position, corresponding to the slide way, of the baffle; the slide way is internally provided with a lead screw extending in the same direction, the lead screw is rotatably arranged in the slide way through a polished rod at the end part, the push block is connected to the lead screw in a threaded manner, and the polished rod at one end of the lead screw extends to the outer side of the splint body and is fixedly provided with a knob; the inner side of the clamping block is provided with a buffer plate, and a buffer spring is connected between the clamping block and the buffer plate.

As a further improvement, the top of the inner wall of the box body and the inner side of the buffer plate are provided with buffer rubber pads.

As a further improvement, a driving motor for driving the corresponding small shaft to rotate is fixedly arranged in the driving cavity.

By adopting the technical scheme, the logistics distribution box comprises a box body with an opening at the front side, a bottom supporting plate is movably arranged in the box body up and down, the left end and the right end of the bottom supporting plate are respectively and rotatably provided with a first gear, the inner sides of the left side wall and the right side wall of the box body are respectively and fixedly provided with a first rack which is meshed with the corresponding first gear, a top supporting plate is arranged above the bottom supporting plate, two vertically extending supporting rods are oppositely and fixedly arranged at the left and the right of the bottom of the top supporting plate, the upper end of the outer side of the supporting rod is fixedly provided with a second rack which is meshed with the corresponding first gear, a supporting spring is connected between the bottom supporting plate and the top supporting plate, and a limiting mechanism which enables the first gear to be meshed with or separated from the corresponding second rack is arranged between the bottom supporting plate and the top supporting plate; the top supporting plate and the supporting spring have a buffering and protecting effect on the objects, and can prevent the objects from being damaged by bumping in the transportation process; when the box body is bumped in the transportation process, the top supporting plate moves downwards relative to the bottom supporting plate, and simultaneously, the bottom supporting plate moves downwards relative to the box body, so that the top supporting plate moves downwards relative to the box body by a larger stroke, and a better buffering effect is provided for objects; according to the invention, the second rack is separated from the first gear by inserting the limiting pin into the limiting groove, so that the bottom supporting plate can be conveniently moved up and down and the top supporting plate can be driven to move up and down, and the distance between the top supporting plate and the top wall of the box body can be conveniently adjusted according to the size of an object; according to the invention, the two sliding blocks are driven to be away from each other along the sliding cavity by rotating the bidirectional stud, and the two sliding blocks drive the corresponding clamping plates to move inwards through the first connecting rod, so that the two clamping plates clamp the object on the top supporting plate, and the object is prevented from shaking in the box body; the cover plate is closed, the two clamping plates are driven to clamp the object, and the cover plate is opened, the two clamping plates are driven to loosen the object, so that the cover plate has the advantage of conveniently taking and placing the object; the clamping blocks are driven to move inwards by forward rotation of the screw rod, or driven to move outwards by reverse rotation of the screw rod, so that the distance between the two clamping blocks can be conveniently adjusted according to the size of an object.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic view of the internal structure of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion I of FIG. 3;

FIG. 5 is a schematic structural view of a bottom support plate of an embodiment of the present invention;

FIG. 6 is a schematic structural view of a sliding chamber according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a splint according to an embodiment of the present invention;

fig. 8 is a sectional view B-B in fig. 2.

In the figure: 1-a box body; 2-cover plate; 3-a bottom support plate; 4-a first gear; 5-a first rack; 6-top support plate; 7-a support bar; 8-a second rack; 9-a support spring; 10-a guide post; 11-a pilot hole; 12-a notch; 13-a jack; 14-a jointed shaft; 15-through opening; 16-a limiting column; 17-mounting holes; 18-a mounting cavity; 19-a through hole; 20-a spacing pin; 21-a chute; 22-a limiting groove; 23-a stopper; 24-a locking spring; 25-elongated holes; 26-a splint; 27-a sliding cavity; 28-a slider; 29-a via hole; 30-a first link; 31-an anti-theft lock; 32-a drive chamber; 33-small axis; 34-a first bevel gear; 35-a second bevel gear; 36-a sliding track; 37-a slide plate; 38-third gear; 39-third rack; 40-channel; 41-a second link; 42-a splint body; 43-an auxiliary chamber; 44-auxiliary wells; 45-clamping blocks; 46-a baffle; 47-a return spring; 48-a slide way; 49-a push block; 50-wedge-shaped blocks; 51-a screw rod; 52-a knob; 53-a buffer plate; 54-a buffer spring; 55-cushion rubber pad; 56-driving motor; 57-shifting block; 58-a two-way stud; 59-shallow grooves.

Detailed Description

As shown in fig. 1 to 8, a logistics distribution box comprises a box body 1 with an open front, wherein a cover plate 2 is movably mounted at an opening of the box body 1, specifically, a shallow groove 59 communicated with a mouth of the box body 1 is arranged at the front side of the box body 1, two transversely extending hinge shafts 14 are relatively and fixedly mounted at the left and right sides of the lower end of the cover plate 2, the cover plate 2 is rotatably mounted in the shallow groove 59 through the two hinge shafts 14, the mouth of the box body 1 is opened by rotating the cover plate 2 downwards, or the cover plate 2 is retracted into the shallow groove 59 by rotating the cover plate 2 upwards, so that the mouth of the box body 1 is closed; an anti-theft lock 31 is arranged between the cover plate 2 and the shallow groove 59.

There is bottom support plate 3 about movable mounting in the box 1, as shown in fig. 3, four corners in the box 1 respectively fixed mounting have vertical extension's guide post 10, be equipped with on bottom support plate 3 with four guide post 10 one-to-one's guiding hole 11, guide post 10 and guiding hole 11 cooperate in order to improve the stability that bottom support plate 3 reciprocated.

As shown in fig. 2 to 5, the left and right ends of the bottom support plate 3 are respectively rotatably provided with a first gear 4, the left and right ends of the bottom support plate 3 are respectively provided with a notch 12, and the two first gears 4 are respectively rotatably mounted in the corresponding notches 12. The inner sides of the left side wall and the right side wall of the box body 1 are respectively and fixedly provided with a first rack 5 which is meshed with the corresponding first gear 4, and the first racks 5 vertically extend. The top of bottom sprag board 3 is equipped with top sprag board 6, and top sprag board 6 is used for placing the article, relative fixed mounting has two vertical extension's bracing piece 7 about the bottom of top sprag board 6, bracing piece 7 movable mounting is in from top to bottom on the bottom sprag board 3, be equipped with on the bottom sprag board 3 with two jack 13 of bracing piece 7 one-to-one. The upper end fixed mounting in the outside of bracing piece 7 has with corresponding second rack 8 that first gear 4 meshed mutually, jack 13 and corresponding second rack 8 position department is equipped with the intercommunication corresponding opening 15 of breach 12. A supporting spring 9 is connected between the bottom supporting plate 3 and the top supporting plate 6, and a limiting mechanism which enables the first gear 4 to be meshed with or separated from the corresponding second rack 8 is arranged between the bottom supporting plate 3 and the top supporting plate 6. Specifically, the limiting mechanism comprises a vertically extending limiting column 16 fixedly arranged at the bottom of the top supporting plate 6, the bottom supporting plate 3 is provided with a mounting hole 17 matched with the limiting column 16, a mounting cavity 18 is arranged in the bottom supporting plate 3, a through hole 19 which is transversely communicated with the mounting hole 17 is arranged at one side of the mounting cavity 18, a limit pin 20 is movably arranged in the through hole 19, one side of the limit post 16 close to the limit pin 20 is provided with a vertically extending chute 21, a limit groove 22 positioned below the sliding groove 21 is further arranged at one side of the limit column 16 close to the limit pin 20, when the limit pin 20 is located in the slide groove 21, the second rack 8 is in a state of being engaged with the first gear 4, when the limit pin 20 is located in the limit groove 22, the second rack 8 is in a state of being separated from the first gear 4; one end fixed mounting of spacer pin 20 has and is located dog 23 in the installation cavity 18, dog 23 is kept away from one side of spacer pin 20 with be equipped with locking spring 24 between the lateral wall of installation cavity 18, fixed mounting has shifting block 57 still in the bottom of dog 23, bottom sprag plate 3 with the corresponding department in shifting block 57 position is equipped with rectangular hole 25, shifting block 57 is followed rectangular hole 25 is worn out extremely the outside of bottom sprag plate 3 can be followed rectangular hole 25 removes.

In an initial state, one end of the limit pin 20 is positioned in the sliding groove 21 and can slide up and down in the sliding groove 21, and at the moment, the second rack 8 is in a state of being meshed with the first gear 4; the supporting spring 9 is supported between the top supporting plate 6 and the bottom supporting plate 3, the thrust of the supporting spring 9 makes the limit pin 20 slide to the lowest end of the sliding groove 21, and makes the supporting plate 6 and the bottom supporting plate 3 keep a relatively static state, at this time, the second rack 8 is meshed with the first gear 4 to limit the rotation of the first gear 4, and meanwhile, the first gear 4 is meshed on the first rack 5 to avoid the bottom supporting plate 3 from sliding downwards under the action of gravity.

When the box body 1 is bumped in the transportation process, the object on the top supporting plate 6 drives the top supporting plate 6 to move downwards relative to the bottom supporting plate 3 under the action of gravity and enables the supporting spring 9 to be compressed, the top supporting plate 6 and the supporting spring 9 play a role in buffering and protecting the object, and the object is prevented from being damaged by bumping in the transportation process. Top support plate 6 moves down for bottom support plate 3 simultaneously through bracing piece 7 drive second rack 8 and move down, drive first gear 4 when second rack 8 moves down and roll down along first rack 5, first rack 5 drives bottom support plate 3 and moves down for box 1, thereby when top support plate 6 moves down for bottom support plate 3, bottom support plate 3 moves down for box 1 again, make top support plate 6 for box 1 great stroke that moves down, thereby provide better cushioning effect for the article.

In addition, when using, the accessible stirs shifting block 57 and drives spacer pin 20 and receive in through-hole 19 and break away from spout 21, then move top support plate 3 for bottom support plate 3 is up, top support plate 6 drives spacing post 16 and moves up for bottom support plate 3, make spacer pin 20 insert in spacing groove 22, top support plate 6 drives bracing piece 7 and moves up for bottom support plate 3 simultaneously, make second rack 8 and first gear 4 separate, then reciprocate bottom support plate 3, bottom support plate 3 drives top support plate 6 and reciprocates, thereby be convenient for adjust the distance between top support plate 6 and the roof of box 1 according to the size of article. After the adjustment is finished, the shifting block 57 is shifted again, the limit pin 20 is retracted into the through hole 19 and separated from the limit groove 22, then the limit pin 20 is inserted into the sliding groove 21 again by moving the bottom support plate 3 upwards relative to the top support plate 6, and meanwhile, the bottom support plate 3 drives the first pulley 4 to be meshed with the second rack 8.

As shown in fig. 2, 6 and 7, two clamping plates 26 are oppositely arranged in the box body 1 from left to right, and both the two clamping plates 26 are positioned above the top supporting plate 6; be equipped with longitudinal extension's slip chamber 27 in the lateral wall about box 1 respectively, be equipped with two sliding blocks 28 in the slip chamber 27 relatively, one side of slip chamber 27 is equipped with inwards extending and pierces through the via hole 29 of the lateral wall of box 1, be equipped with in the via hole 29 with two the first connecting rod 30 of sliding block 28 one-to-one, the one end of first connecting rod 30 articulates correspondingly on the sliding block 28, the other end of first connecting rod 30 articulates correspondingly on splint 26, in this embodiment, the one end that is located two upper and lower first connecting rods 30 of same side and keeps away from corresponding sliding block 28 articulates respectively at corresponding splint 26's upper and lower both ends. The sliding cavity 27 is internally provided with bidirectional studs 58 extending in the same direction, the outer sides of the bidirectional studs 58 are oppositely provided with external threads with opposite rotation directions, the bidirectional studs 58 are rotatably installed in the sliding cavity 27 through polished rods at the end parts, and the two sliding blocks 28 are respectively in threaded connection with the external threads with different rotation directions of the bidirectional studs 58; and a linkage mechanism for driving the bidirectional stud 58 to rotate is arranged on the box body 1.

When an object is placed on the top supporting plate 6, the two sliding blocks 28 are driven to be away from each other along the sliding cavity 27 by positively rotating the bidirectional stud 58, and the two sliding blocks 28 drive the corresponding clamping plates 26 to move inwards through the first connecting rod 30, so that the two clamping plates 26 clamp the object on the top supporting plate 6, and the object is prevented from shaking in the box body 1; or the two sliding blocks 28 are driven to mutually approach along the sliding cavity 27 by reversely rotating the two-way stud 58, and the two sliding blocks 28 drive the corresponding clamping plates 26 to move outwards through the first connecting rod 30, so that the two clamping plates 26 loosen the object on the top supporting plate 6, and the object is convenient to take out.

As shown in fig. 2, 6 and 8, the linkage mechanism includes two driving cavities 32 disposed in the left and right side walls of the box body 1, the driving cavities 32 are communicated with the corresponding sliding cavities 27, a small shaft 33 extending transversely is rotatably mounted in the driving cavities 32, a first bevel gear 34 is coaxially and fixedly mounted on the bidirectional stud 58, and a second bevel gear 35 engaged with the first bevel gear 34 is coaxially and fixedly mounted on the small shaft 33; sliding ways 36 extending forwards and backwards are respectively arranged in the left side wall and the right side wall of the box body 1, the sliding ways 36 are communicated with the corresponding driving cavities 32, the sliding ways 36 are positioned below the driving cavities 32, sliding plates 37 are slidably arranged in the sliding ways 36, third gears 38 are coaxially and fixedly arranged on the small shafts 33, and third racks 39 meshed with the third gears 38 are fixedly arranged on the sliding plates 37; the left side wall and the right side wall of the box body 1 are respectively provided with a channel 40 for communicating the corresponding sliding channel 36 and the shallow groove 59, a second connecting rod 41 is arranged in the channel 40, one end of the second connecting rod 41 is hinged on the corresponding sliding plate 37, and the other end of the second connecting rod 41 is hinged on the cover plate 2.

When an object is placed on the top supporting plate 6, the opening of the box body 1 is closed by upwards rotating the cover plate 2, the slide plate 37 is driven to move backwards by the second connecting rod 41 when the cover plate 2 rotates upwards, the slide plate 37 drives the small shaft 33 to rotate forwards by the third rack 39, and the first bevel gear 34 and the bidirectional stud 58 are driven to rotate forwards by the second bevel gear 35 when the small shaft 33 rotates forwards, so that the two clamping plates 26 clamp the object; or the opening part of the box body 1 is opened by rotating the cover plate 2 downwards, the sliding plate 37 is driven to move forwards by the second connecting rod 41 when the cover plate 2 rotates downwards, the sliding plate 37 drives the small shaft 33 to rotate backwards by the third rack 39, and the first bevel gear 34 and the bidirectional stud 58 are driven to rotate reversely by the second bevel gear 35 when the small shaft 33 rotates backwards, so that the two clamping plates 26 loosen the objects.

As shown in fig. 7, the splint 26 includes a splint body 42, an auxiliary cavity 43 is provided in the splint body 42, an auxiliary hole 44 extending inward and penetrating through the splint body 42 is provided at one side of the auxiliary cavity 43, a clamping block 45 is movably mounted in the auxiliary hole 44, a baffle 46 located in the auxiliary cavity 43 is fixedly mounted on the clamping block 45, and a return spring 47 is provided between the inner side of the baffle 46 and the side wall of the auxiliary cavity 43; a longitudinally extending slide way 48 is arranged on one side of the auxiliary cavity 43 away from the auxiliary hole 44, a push block 49 is slidably mounted in the slide way 48, a wedge block 50 is fixedly mounted at a position corresponding to the slide way 48 of the baffle 46, and the wedge block 50 gradually becomes thicker from bottom to top; a screw rod 51 extending in the same direction is arranged in the slide way 48, the screw rod 51 is rotatably installed in the slide way 48 through a polished rod at the end part, the push block 49 is in threaded connection with the screw rod 51, and the polished rod at one end of the screw rod 41 extends to the outer side of the splint body 42 and is fixedly provided with a knob 52; the inner side of the clamping block 45 is provided with a buffer plate 53, and a buffer spring 54 is connected between the clamping block 45 and the buffer plate 53.

When the device is used, the screw rod 51 is driven to rotate in the forward direction through the forward rotation knob 52, the push block 49 is driven to move upwards along the slide way 48 when the screw rod 51 rotates in the forward direction, the push block 49 pushes the wedge block 50 to enable the baffle 46 to move inwards and enable the return spring 47 to compress, and the baffle 46 drives the clamping blocks 45 to move inwards, so that the distance between the two clamping blocks 45 is reduced; or the screw rod 51 is driven to rotate reversely by the reverse rotation knob 52, the push block 49 is driven to move downwards along the slide way 48 when the screw rod 51 rotates reversely, the return spring 47 in a compressed state pushes the baffle plate 46 to move outwards, and the baffle plate 46 drives the clamping blocks 45 to move outwards, so that the distance between the two clamping blocks 45 is increased, and the distance between the two clamping blocks 45 can be adjusted conveniently according to the size of an object. The arrangement of the buffer plate 53 and the buffer spring 54 serves to prevent the two clamp blocks 45 from clamping the article.

The top of the inner wall of the box body 1 and the inner side of the buffer plate 53 are both provided with buffer rubber pads 55 to avoid the direct collision of objects with the top of the inner wall of the box body 1 or the buffer plate 53.

A driving motor 56 for driving the corresponding small shaft 33 to rotate is fixedly arranged in the driving cavity 32, and the small shaft 33 is driven to rotate by the driving motor 56, so that the opening and closing of the cover plate 2 and the clamping or loosening of objects by the clamping plate 26 are controlled more conveniently.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A logistics distribution box is characterized in that: including front side open-ended box, the opening part movable mounting of box has the apron, movable mounting has the bottom support board about in the box, both ends rotate respectively about the bottom support board and install first gear, the inboard of lateral wall is fixed mounting respectively about the box have with corresponding first rack that first gear meshed mutually, the vertical extension of first rack, the top of bottom support board is equipped with top support board, relative fixed mounting has the bracing piece of two vertical extensions about top support board's bottom, movable mounting is in about the bracing piece on the bottom support board, the upper end fixed mounting in the outside of bracing piece has with corresponding first gear meshed's second rack, bottom support board with be connected with supporting spring between the top support board, bottom support board with be equipped with between the top support board and make first gear and corresponding second rack meshed mutually or the separation A limiting mechanism;

the limiting mechanism comprises a vertically extending limiting column fixedly mounted at the bottom of the top supporting plate, a mounting hole matched with the limiting column is formed in the bottom supporting plate, a mounting cavity is formed in the bottom supporting plate, a through hole transversely communicated with the mounting hole is formed in one side of the mounting cavity, a limiting pin is movably mounted in the through hole, a vertically extending sliding groove is formed in one side, close to the limiting pin, of the limiting column, a limiting groove located below the sliding groove is further formed in one side, close to the limiting pin, of the limiting column, when the limiting pin is located in the sliding groove, the second rack is in a state of being meshed with the first gear, and when the limiting pin is located in the limiting groove, the second rack is in a state of being separated from the first gear; one end fixed mounting of spacer pin has the dog that is located the installation intracavity, the dog is kept away from one side of spacer pin with be equipped with locking spring between the lateral wall of installation chamber, the bottom of dog is fixed mounting still has the shifting block, the bottom sprag with the corresponding department in shifting block position is equipped with the rectangular shape hole, the shifting block is followed the rectangular shape hole is worn out extremely the outside of bottom sprag board can be followed the rectangular shape hole removes.

2. A logistics distribution box as defined in claim 1, wherein: guide posts extending vertically are fixedly mounted at four corners in the box body respectively, and guide holes corresponding to the four guide posts one by one are formed in the bottom supporting plate; notches are respectively formed in the left end and the right end of the bottom supporting plate, and the two first gears are rotatably installed in the corresponding notches respectively; the bottom supporting plate is provided with two jacks in one-to-one correspondence with the supporting rods, and the jacks and the corresponding positions of the second rack are provided with through holes communicated with the corresponding notches.

3. A logistics distribution box as defined in claim 1, wherein: two clamping plates are oppositely arranged on the left and the right in the box body, and are both positioned above the top supporting plate; the left side wall and the right side wall of the box body are respectively internally provided with a longitudinally extending sliding cavity, two sliding blocks are oppositely arranged in the sliding cavities, one side of each sliding cavity is provided with a through hole which extends inwards and penetrates through the side wall of the box body, first connecting rods which are in one-to-one correspondence with the two sliding blocks are arranged in the through holes, one end of each first connecting rod is hinged to the corresponding sliding block, and the other end of each first connecting rod is hinged to the corresponding clamping plate; the sliding cavity is internally provided with bidirectional studs extending in the same direction, the outer sides of the bidirectional studs are relatively provided with external threads with opposite rotation directions, the bidirectional studs are rotatably arranged in the sliding cavity through polished rods at the end parts, and the two sliding blocks are respectively in threaded connection with the external threads with different rotation directions of the bidirectional studs; and the box body is provided with a linkage mechanism for driving the bidirectional stud to rotate.

4. A logistics distribution box as defined in claim 3, wherein: a shallow groove communicated with the opening of the box body is formed in the front side of the box body, two transversely extending hinge shafts are oppositely and fixedly installed on the left side and the right side of the lower end of the cover plate, and the cover plate is rotatably installed in the shallow groove through the two hinge shafts; and an anti-theft lock is arranged between the cover plate and the shallow groove.

5. A logistics distribution box as recited in claim 4, wherein: the linkage mechanism comprises two driving cavities arranged in the left side wall and the right side wall of the box body, the driving cavities are communicated with the corresponding sliding cavities, small shafts extending transversely are rotatably arranged in the driving cavities, first bevel gears are coaxially and fixedly arranged on the bidirectional studs, and second bevel gears meshed with the first bevel gears are coaxially and fixedly arranged on the small shafts; sliding channels extending forwards and backwards are respectively arranged in the left side wall and the right side wall of the box body and are communicated with the corresponding driving cavities, sliding plates are arranged in the sliding channels in a sliding mode, third gears are coaxially and fixedly arranged on the small shafts, and third racks meshed with the third gears are fixedly arranged on the sliding plates; and channels for communicating the corresponding sliding channels with the shallow grooves are respectively arranged in the left side wall and the right side wall of the box body, a second connecting rod is arranged in each channel, one end of each second connecting rod is hinged on the corresponding sliding plate, and the other end of each connecting rod is hinged on the cover plate.

6. A logistics distribution box as defined in claim 3, wherein: the clamp plate comprises a clamp plate body, an auxiliary cavity is arranged in the clamp plate body, an auxiliary hole which extends inwards and penetrates through the clamp plate body is formed in one side of the auxiliary cavity, a clamp block is movably arranged in the auxiliary hole, a baffle plate located in the auxiliary cavity is fixedly arranged on the clamp block, and a reset spring is arranged between the inner side of the baffle plate and the side wall of the auxiliary cavity; a longitudinally extending slide way is arranged on one side of the auxiliary cavity far away from the auxiliary hole, a push block is arranged in the slide way in a sliding mode, and a wedge-shaped block is fixedly arranged at the position, corresponding to the slide way, of the baffle; the slide way is internally provided with a lead screw extending in the same direction, the lead screw is rotatably arranged in the slide way through a polished rod at the end part, the push block is connected to the lead screw in a threaded manner, and the polished rod at one end of the lead screw extends to the outer side of the splint body and is fixedly provided with a knob; the inner side of the clamping block is provided with a buffer plate, and a buffer spring is connected between the clamping block and the buffer plate.

7. A logistics distribution box as recited in claim 6, wherein: the top of the inner wall of the box body is provided with a cushion rubber pad on the inner side of the cushion plate.

8. A logistics distribution box as recited in claim 5, wherein: and a driving motor for driving the corresponding small shaft to rotate is fixedly arranged in the driving cavity.