CN111346898B

CN111346898B - Packing box disassembling device

Info

Publication number: CN111346898B
Application number: CN202010163427.9A
Authority: CN
Inventors: 付卓; 陈警; 张津瑞; 赵思宇; 杨泽宇; 孙墨林
Original assignee: Changsha University
Current assignee: Changsha University
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2021-03-26
Anticipated expiration: 2040-03-10
Also published as: CN111346898A

Abstract

The invention provides a packing box disassembling device, which comprises: the telescopic device comprises a telescopic rod and a telescopic driving mechanism for driving the telescopic rod to stretch and retract; the opening device comprises a support rod, a support piece and a disassembling driving mechanism, wherein the support rod is connected with the telescopic rod, the support piece is arranged outside the support rod, and the disassembling driving mechanism is used for driving the support piece to open or contract along the radial direction of the support rod so as to correspondingly open or reset the packaging box through the support piece. The packaging box disassembling device can realize complete disassembly of the packaging box, does not cause secondary damage while disassembling the packaging box, provides effective help for subsequent recovery of the packaging box and secondary utilization of the packaging box in the logistics industry, is practical and feasible, effectively relieves the increasing problem of express garbage, improves the recovery utilization rate of the packaging box, reduces resource waste, can reduce environmental pollution as far as possible, and promotes China to quicken the pace of conversion to green logistics.

Description

Packing box disassembling device

Technical Field

The invention relates to the technical field of engineering machinery, in particular to a packing box disassembling device.

Background

With the rapid development of electronic commerce, online shopping has become a novel consumption mode of modern society, so that the use of express packaging boxes is increasingly widespread. According to the monitoring data of a certain department of the country, the national express delivery business volume is 206 hundred million pieces in 2015, the year-by-year increase is 48%, more than 15 hundred million pieces of packages are generated in 2017 in the double 11 period, and at least 30 million tons of garbage are generated in 15 hundred million pieces of express delivery according to the conservative calculation of 0.2 kilogram standard of each packing box in the industry. The problem of express rubbish, resource waste and environmental pollution caused by the fact that express packaging boxes are used in large quantities is solved if huge express order data are hidden behind the express packaging boxes. At present, there are two kinds of main modes to the recovery of express delivery packing carton at home, one kind is the carton after directly throwing into to flatten, one kind is automatic with the carton crushing. However, the two modes have great limitation in the aspects of package box structural integrity and machine recycling capacity, the recycled package boxes are difficult to recycle, the recycling rate of the package boxes is less than 10%, and a great amount of resource waste is caused.

Disclosure of Invention

The invention mainly aims to provide a packing box disassembling device, and aims to solve the problems that in the prior art, the packing box is low in recycling rate and resources are wasted.

In order to achieve the above object, the present invention provides a packing box dismantling device, including:

the telescopic device comprises a telescopic rod and a telescopic driving mechanism for driving the telescopic rod to stretch and retract;

the opening device comprises a support rod, a support piece and a disassembling driving mechanism, the support rod is connected with the telescopic rod, the support piece is arranged outside the support rod, and the disassembling driving mechanism is used for driving the support piece to radially expand or contract along the support rod so as to correspondingly enable the support piece to open the packaging box.

In the process of disassembling the packing box by the packing box unfolding device, the adhesive tapes at the openings on the two opposite sides of the packing box are unsealed in advance. Before the stay bar enters the packaging box, the stay piece is in a state of being contracted on the stay bar, the telescopic driving mechanism drives the telescopic rod and the stay bar to extend into the packaging box from an opening at one side of the packaging box, and at the moment, the disassembling driving mechanism drives the stay piece to expand along the radial direction of the stay bar; the telescopic driving mechanism continues to drive the telescopic rod and the support rod to move towards the opening at the other side until the support piece supports the box wall at the opening at the other side. After the box wall at the opening at the other side is unfolded, the telescopic driving mechanism drives the telescopic rod and the support rod to retract, and in the retracting process, the unfolded box wall at the opening at one side is completely unfolded by utilizing the unfolded support sheet, so that the complete disassembly of the packaging box is realized. The disassembly driving mechanism retracted outside the packaging box drives the support piece to contract along the radial direction of the support rod, so that the support piece is contracted on the support rod again after being reset, and preparation is provided for disassembling the packaging box next time.

The packaging box disassembling device can realize complete disassembly of the packaging box, does not cause secondary damage while disassembling the packaging box, provides effective help for subsequent recovery of the packaging box and secondary utilization of the packaging box in the logistics industry, is practical and feasible, effectively relieves the increasing problem of express garbage, improves the recovery utilization rate of the packaging box, reduces resource waste, can reduce environmental pollution as far as possible, and promotes China to quicken the pace of conversion to green logistics.

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, 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 the structures shown in the drawings without creative efforts.

FIG. 1 is a perspective view of the packaging box dismantling device of the present invention;

FIG. 2 is a schematic view of a disassembly process of the packaging box disassembling device of the present invention;

FIG. 3 is a schematic perspective view of the telescoping device of the packing box dismantling device of the present invention before being extended;

FIG. 4 is a perspective view of the structure of the portion of the packing box dismantling device before the extension and retraction device is extended;

FIG. 5 is a perspective view of the structure of the portion of the packing box dismantling device before the extension and retraction device is extended from another perspective view;

FIG. 6 is a schematic perspective view of the two-stage telescopic rod of the packing box dismantling device of the present invention extending to a second extreme position;

FIG. 7 is a perspective view of a portion of the structure of the two-stage retractable rod of the packing box dismantling device of the present invention, when the two-stage retractable rod is extended to a second limit position;

FIG. 8 is a perspective view of the two-stage telescopic rod of the packing box dismantling device of the present invention, with a portion of the structure thereof being at another viewing angle when the two-stage telescopic rod is extended to the second limit position;

FIG. 9 is a schematic perspective view of the first-stage retractable rod of the packing box dismantling device of the present invention extending to a first limit position;

FIG. 10 is a perspective view of a first-stage retractable rod of the packing box dismantling device of the present invention, with a portion of the structure thereof being at a viewing angle when the first-stage retractable rod is extended to a first limit position;

FIG. 11 is a perspective view of the first-stage retractable rod of the packing box dismantling device of the present invention, with a portion of the structure thereof being at another viewing angle when the first-stage retractable rod is extended to the first limit position;

FIG. 12 is a schematic cross-sectional view of the packing box dismantling device of the present invention before the telescoping device is extended;

FIG. 13 is a schematic partial cross-sectional view of the first stage telescopic rod and the second stage telescopic rod of the telescopic device of the present invention when locked together;

FIG. 14 is an exploded view of the locking mechanism of the telescopic device of the present invention.

The reference numbers illustrate:

100. a telescoping device; 10. a primary telescoping mechanism; 11. a first-stage telescopic rod; 111. a primary mount; 1111. acting surface; 1112. a first connection face; 112. a primary lever body; 1121. a friction ring; 1122. a slide hole; 12. a primary driving wheel; 113. a second abutting surface; 114. a first step surface; 121. a first-stage jack; 13. a first-stage thimble; 131. a primary movable rod; 132. a first-stage inserted link; 133. a primary drive member; 134. a first connection block; 20. a secondary telescoping mechanism; 21. a secondary telescopic rod; 21', a telescopic rod; 211. a secondary mounting base; 2111. a second connection face; 212. a secondary lever body; 2121. locking the jack; 213. a second step surface; 22. a secondary driving wheel; 22', a drive wheel; 221. a secondary jack; 23. a second-stage thimble; 231. a secondary movable rod; 232. a second-stage inserted link; 233. a secondary drive member; 234. a second connecting block; 30. a base; 31. a sleeve; 311. a first abutting surface; 32. a screw; 33. a telescopic driving mechanism; 331. a bevel gear; 40. a linkage mechanism; 41. a pull rod; 411. a first draw hook; 412. a second draw hook; 42. a hinged lever; 50. a locking mechanism; 51. inserting a block; 511. a first inclined surface; 52. a compression spring; 53. a slider; 531. a second inclined surface; 200. a distraction device; 60. a stay bar; 70. supporting the sheet; 80. disassembling the driving mechanism; 81. a support; 82. a rotating shaft; 83. pulling a rope; 90. a collar; 300. and (7) packaging boxes.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The description of the orientations of "front", rear ", etc. in the present invention is based on the orientations shown in fig. 1 and 12, and is only for explaining the relative positional relationship between the respective components in the postures shown in fig. 1 and 12, and if the specific posture is changed, the directional indication is changed accordingly.

As shown in fig. 1 to 12, the present invention provides a packing box dismantling device, which includes a telescopic device 100 and a spreading device 200, wherein the telescopic device 100 includes a telescopic rod 21 'and a telescopic driving mechanism 33, and the telescopic driving mechanism 33 is used for driving the telescopic rod 21' to stretch and retract; the opening device 200 includes a supporting rod 60, a supporting piece 70 and a disassembling driving mechanism 80, the supporting rod 60 is connected to the telescopic rod 21', the supporting piece 70 is disposed outside the supporting rod 60, and the disassembling driving mechanism 80 is used for driving the supporting piece 70 to open or contract along the radial direction of the supporting rod 60, so as to correspondingly open or reset the packaging box 300 by the supporting piece 70. This embodiment packing box dismantling device is mainly applied to packing box 300, and packing box 300 is generally a rectangular parallelepiped structure, and two opposite sides of packing box 300 have openings.

As shown in fig. 2, in the process of disassembling package 300, the adhesive tapes at the openings on the two opposite sides of package 300 are removed in advance. Before the support bar 60 enters the packing box 300, the support piece 70 is in a state of being contracted on the support bar 60, the telescopic driving mechanism 33 drives the telescopic bar 21' and the support bar 60 to extend into the packing box 300 from one side opening of the packing box 300, as shown in fig. 2(a), at this time, the disassembling driving mechanism 80 drives the support piece 70 to expand along the radial direction of the support bar 60, as shown in fig. 2 (b); the telescopic driving mechanism 33 continues to drive the telescopic rod 21' and the support rod 60 to move towards the opening at the other side until the support sheet 70 props open the box wall at the opening at the other side, as shown in fig. 2 (c). After the box wall at the opening on the other side is opened, the telescopic driving mechanism 33 drives the telescopic rod 21' and the support rod 60 to retract, and in the retracting process, the opened box wall at the opening on one side is completely opened by using the opened support sheet 70, as shown in fig. 2(d), so that the complete disassembly of the packing box 300 is realized. The detaching driving mechanism 80 retracted outside the packing box 300 drives the stay 70 to contract along the radial direction of the stay 60, so that the stay 70 is retracted again on the stay 60 after being reset, and preparation is provided for detaching the packing box 300 next time.

This embodiment packing carton disassembles ware can realize dismantling packing carton 300's is complete, can not cause the secondary to destroy when dismantling packing carton 300, for follow-up recovery packing carton 300 and for the commodity circulation trade reutilization packing carton 300 provides effective help, and is feasible for increasing express delivery rubbish problem is effectively alleviated, improves packing carton 300's recycle ratio, reduces the wasting of resources, and can reduce environmental pollution as far as possible, impels china to accelerate the pace that changes to green commodity circulation.

Further, as shown in fig. 1, the supporting sheet 70 of this embodiment is a strip-shaped elastic sheet, the supporting rod 60 is connected with the free end of the telescopic rod 21 ' and is coaxially disposed with the telescopic rod 21 ', the connecting end of the supporting sheet 70 is connected with the supporting rod 60, and the free end of the supporting sheet 70 extends along the extending direction of the telescopic rod 21 '; the expanding device 200 further includes a collar 90 sleeved outside the supporting sheet 70, and the disassembling driving mechanism 80 is configured to drive the collar 90 to slide along the extending direction of the extending rod 21' relative to the supporting sheet 70, so as to restrict the supporting sheet 70 from contracting and adhering to the supporting rod 60, or to release the restriction on the supporting sheet 70, so as to expand the free end of the supporting sheet 70 along the radial direction of the supporting rod 60.

Specifically, the stay 70 is made of an elastic material, and is a strip-shaped elastic piece, which is unconstrained at its free end, i.e., in a non-bundled state, the free end is tilted with respect to the connection end to expand in a radial direction of the stay 60, and constrained at the free end of the stay 70, i.e., in a bundled state, the free end is contracted onto the stay 60. As shown in fig. 1, the stay 60 and the telescopic rod 21 'of the present embodiment both extend in the front-rear direction, the telescopic rod 21' extends in the front-rear direction, the rear end of the stay 70 is connected to the stay 60, and the front end of the stay 70 is the free end of the stay 70. When the disassembly driving mechanism 80 drives the collar 90 to slide forwards relative to the support piece 70, the collar 90 restrains the support piece 70, and the support piece 70 is tied up on the support rod 60, so that the support piece 70 is contracted and attached to the support rod 60; when the disassembly driving mechanism 80 drives the collar 90 to slide backward relative to the supporting piece 70, the collar 90 gradually releases the constraint of the supporting piece 70, and the free end of the supporting piece 70 is expanded along the radial direction of the supporting rod 60, so as to completely expand the box wall at the opening of the packing box 300.

Further, the number of the stay pieces 70 is plural, and the plural stay pieces 70 are sequentially arranged along the circumferential direction of the stay 60. The number of the stay pieces 70 is four in this embodiment, and the four stay pieces 70 are sequentially arranged along the circumferential direction of the stay bar 60. When the collar 90 releases the restraint of the supporting pieces 70, the free ends of the four supporting pieces 70 are opened synchronously, and the box wall at the opening of the packing box 300 is opened like an umbrella. The plurality of stay pieces 70 are designed to increase an effective area with respect to the box wall at the opening of the packing box 300 so that the box wall at the opening of the packing box 300 can be opened in all directions. The number and shape of the gussets 70 may be selected according to practical circumstances, and the number and shape of the gussets 70 are not limited in the present invention.

In one embodiment, the detaching driving mechanism 80 includes a bracket 81, a rotating shaft 82, a pulling rope 83, and a detaching driving motor, the bracket 81 is mounted on the sleeve 31 of the telescopic device 100, the rotating shaft 82 rotates on the bracket 81, one end of the pulling rope 83 winds around the rotating shaft 82, the other end of the pulling rope 83 is connected to the collar 90, and the detaching driving motor is used for driving the rotating shaft 82 to rotate, so as to pull the collar 90 to move along the retracting direction of the telescopic rod 21' through the pulling rope 83 and to release the constraint on the supporting sheet 70. The telescopic device 100 further comprises a base 30, the base 30 comprises a sleeve 31 and a screw rod 32, the screw rod 32 is rotatably installed in the sleeve 31, the support 81 is installed outside the sleeve 31, the telescopic rod 21 'is slidably sleeved in the sleeve 31, a driving wheel 22' is sleeved outside the screw rod 32, the driving wheel 22 'is meshed with the screw rod 32, the telescopic driving mechanism 33 is used for driving the screw rod 32 to rotate and driving the telescopic rod 21' to extend and retract relative to the sleeve 31 through the driving wheel 22 ', and the lantern ring 90 can abut against the free end of the sleeve 31 when the telescopic rod 21' retracts, so that the lantern ring 90 moves relative to the telescopic rod 21 'along the extending direction of the telescopic rod 21' and restrains the support sheet 70 from retracting and abutting against the.

Specifically, in this embodiment, the telescopic driving mechanism 33 drives the screw rod 32 to rotate, so that the driving wheel 22 ' drives the telescopic rod 21 ' and the support rod 60 to extend forward from the rear opening of the packing box 300 and into the packing box 300, at this time, the disassembling driving motor drives the rotating shaft 82 to rotate, one end of the pulling rope 83 is wound on the rotating shaft 82, so that the other end of the pulling rope 83 pulls the collar 90 to slide backward, the collar 90 releases the constraint on the support sheet 70, the free end of the support sheet 70 is opened along the radial direction of the support rod 60, and as the telescopic rod 21 ' and the support rod 60 continue to extend, the box wall at the front opening of the packing box 300 is completely opened. After the box wall at the opening at the front side of the packing box 300 is unfolded, the telescopic driving mechanism 33 drives the screw rod 32 to rotate reversely, so that the driving wheel 22 'drives the telescopic rod 21' and the support rod 60 to retract backwards, and in the retracting process, the unfolded support sheet 70 is used for completely unfolding the box wall at the opening at the rear side, thereby realizing the complete disassembly of the packing box 300. As the extension rod 21' and the stay 60 continue to retract, the collar 90 abuts against the free end of the sleeve 31, and the collar 90 slides forward relative to the stay 60 as the stay 60 retracts, thereby re-constraining the stay 70 and allowing the stay 70 to contract and abut against the stay 60 in preparation for next disassembly of the packing box 300.

As shown in fig. 3 to 12, the telescopic device 100 of the present embodiment is a multi-stage telescopic device, and the telescopic device 100 further includes a first-stage telescopic mechanism 10 and a second-stage telescopic mechanism 20, wherein the first-stage telescopic mechanism 10 includes a first-stage telescopic rod 11, a first-stage driving wheel 12 and a first-stage thimble 13, the first-stage telescopic rod 11 is slidably sleeved in the sleeve 31, and the first-stage telescopic rod 11 axially limits the first-stage driving wheel 12 to prevent the first-stage driving wheel 12 from axially moving. The primary driving wheel 12 is sleeved outside the screw rod 32 and meshed with the screw rod 32, the primary ejector pin 13 is connected with the primary telescopic rod 11, and the primary ejector pin 13 is used for locking or releasing the primary driving wheel 12 so as to cooperate with the primary driving wheel 12 to drive the primary telescopic rod 11 to extend out of a first initial position to a first limit position or retract to the first initial position from the first limit position relative to the sleeve 31; the second-stage telescopic mechanism 20 comprises a second-stage telescopic rod 21, a second-stage driving wheel 22 and a second-stage ejector pin 23, the second-stage telescopic rod 21 is slidably sleeved in the first-stage telescopic rod 11, and the second-stage telescopic rod 21 axially limits the second-stage driving wheel 22 to prevent the second-stage driving wheel 22 from axially moving. The secondary driving wheel 22 is sleeved outside the screw rod 32 and meshed with the screw rod 32, the secondary ejector pin 23 is connected with the secondary telescopic rod 21, and the secondary ejector pin 23 is used for locking or releasing the secondary driving wheel 22 so as to cooperate with the secondary driving wheel 22 to drive the secondary telescopic rod 21 to extend out of the second initial position to the second limit position or retract from the second limit position to the second initial position relative to the primary telescopic rod 11.

In this embodiment, the telescopic rod 21 'is a two-stage telescopic rod 21, the driving wheel 22' is a two-stage driving wheel 22, when the first telescopic rod 11 is at the first initial position, the free end of the first telescopic rod 11 extends out of the free end of the sleeve 31, and the collar 90 can abut against the free end of the first telescopic rod 11 when the second telescopic rod 21 is retracted.

It should be noted that, the first initial position of this embodiment refers to a position where the free end of the one-stage telescopic rod 11 does not slide relative to the sleeve 31, and the free end thereof is close to the free end of the sleeve 31, and the first extreme position is an extreme position where the free end of the one-stage telescopic rod 11 slides and extends away from the sleeve 31; the second initial position is a position where the free end of the secondary telescopic rod 21 does not slide relative to the primary telescopic rod 11 and is close to the free end of the primary telescopic rod 11, and the second limit position is a limit position where the free end of the secondary telescopic rod 21 slides and extends away from the primary telescopic rod 11. As shown in fig. 12, the extending direction of the first telescopic rod 11 and the second telescopic rod 21 is a forward direction, and the retracting direction of the first telescopic rod 11 and the second telescopic rod 21 is a backward direction.

When the expansion device 100 of the present embodiment needs to expand, the expansion driving mechanism 33 drives the screw rod 32 to rotate, the first-stage thimble 13 releases the first-stage driving wheel 12, the first-stage driving wheel 12 rotates along with the rotation of the screw rod 32 and is temporarily in an idle state, and the first-stage expansion rod 11 does not expand or contract relative to the sleeve 31 and is kept at the first initial position; and the secondary thimble 23 locks the secondary driving wheel 22, the secondary driving wheel 22 moves forward along with the rotation of the screw rod 32, and then the secondary telescopic rod 21 is driven to slide forward relative to the primary telescopic rod 11 and extend out, so that the secondary telescopic rod 21 extends out from the second initial position to the second limit position, the first extension of the telescopic device 100 is realized, at this time, the secondary thimble 23 releases the secondary driving wheel 22, and the secondary driving wheel 22 is in a temporary idle running state. Then, the primary thimble 13 locks the primary driving wheel 12, the primary driving wheel 12 moves forward along with the rotation of the screw 32, and further drives the primary telescopic rod 11 to slide forward and extend relative to the sleeve 31, so that the primary telescopic rod 11 extends from the first initial position to the first limit position, and the secondary extension of the telescopic device 100 is realized. Understandably, because the secondary telescopic rod 21 is sleeved on the primary telescopic rod 11, the secondary telescopic rod 21 can be driven to continuously move forward in the process of extending the primary telescopic rod 11, and the two continuous and orderly extending processes of the telescopic device 100 are ensured.

When the telescopic device 100 of the embodiment needs to retract, the telescopic driving mechanism 33 drives the screw rod 32 to rotate reversely, the one-level thimble 13 locks the one-level driving wheel 12, the one-level driving wheel 12 moves backwards along with the reverse rotation of the screw rod 32, and then drives the one-level telescopic rod 11 to slide backwards and retract relative to the sleeve 31, so that the one-level telescopic rod 11 retracts to the first initial position from the first limit position, the first retraction of the telescopic device 100 is realized, at the moment, the one-level thimble 13 releases the one-level driving wheel 12, and the one-level driving wheel 12 returns to the idle running state again. Then, the secondary thimble 23 locks the secondary driving wheel 22, and the secondary driving wheel 22 moves backward along with the reverse rotation of the screw rod 32, so as to drive the secondary telescopic rod 21 to slide backward and retract relative to the primary telescopic rod 11, so that the secondary telescopic rod 21 retracts from the second limit position to the second initial position, thereby implementing the second retraction of the telescopic device 100. Understandably, because the secondary telescopic rod 21 is sleeved on the primary telescopic rod 11, the secondary telescopic rod 21 can be driven to move backwards simultaneously in the retraction process of the primary telescopic rod 11, and the two continuous and orderly retraction processes of the telescopic device 100 are ensured.

During the extension of the secondary telescopic rod 21, the stay 60 connected to the secondary telescopic rod 21 is extended from the initial position to the working position, and during the retraction of the secondary telescopic rod 21, the stay 60 connected to the secondary telescopic rod 21 is retracted from the working position to the initial position. This initial position indicates that brace 70 has not opened, and vaulting pole 60 has not stretched into packing carton 300 rear side open-ended position yet, this operating position indicates that brace 70 opens the position of the box wall of back distraction packing carton 300 front side opening part, initial position and operating position can set up according to the in-service use needs, namely, the flexible stroke of telescoping device 100 can set up according to the in-service use needs, for example, under the shorter condition of flexible stroke, only need second grade telescopic link 21 to carry out once and just can realize dismantling packing carton 300 after the extension, under the longer condition of flexible stroke, telescoping device 100 need carry out the two above-mentioned processes of extending and realize dismantling packing carton 300. In addition, since the free end of the first telescopic rod 11 extends out of the free end of the sleeve 31 when the first telescopic rod 11 is at the first initial position, the sleeve ring 90 can abut against the free end of the first telescopic rod 11 when the second telescopic rod 21 retracts, so that the sleeve ring 90 slides forward to restrain the supporting sheet 70 when the second telescopic rod 21 retracts due to the abutting effect of the free end of the first telescopic rod 11.

The expansion device 100 of the present embodiment may be a two-stage expansion device, a three-stage expansion device, a four-stage expansion device, or the like, and the present embodiment is described by taking a two-stage expansion device as an example. For example, in the three-stage telescopic device, a three-stage telescopic rod can be added on the basis of the two-stage telescopic device, the three-stage telescopic rod can be slidably sleeved in the two-stage telescopic rod 21, and the assembling mode between the three-stage telescopic rod and the two-stage telescopic rod 21 is similar to the assembling mode and the telescopic mode between the two-stage telescopic rod 21 and the one-stage telescopic rod 11, and the details are not repeated herein. For another example, the four-stage telescopic device may be added with a four-stage telescopic rod on the basis of the three-stage telescopic device, the four-stage telescopic rod is slidably sleeved in the three-stage telescopic rod, and the assembling manner between the four-stage telescopic rod and the three-stage telescopic rod is similar to the assembling and telescopic manner between the two-stage telescopic rod 21 and the one-stage telescopic rod 11 and between the three-stage telescopic rod and the two-stage telescopic rod 21, which is not described herein again.

The telescopic device 100 of the present embodiment employs a screw transmission manner in which the screw 32 is engaged with the primary driving wheel 12 and the secondary driving wheel 22 to achieve two times of continuous and orderly telescopic of the telescopic device 100, and compared with the prior art employing a hydraulic driving manner or a dual-motor driving manner, the telescopic device 100 of the present embodiment does not need to additionally design an oil cylinder and an oil circuit, does not need to consider the sealing problem, and does not cause the oil pollution problem, good reliability, convenient maintenance, no need of additionally designing a control method of double motors, no need of adding circuits or singlechips and the like, simple structure and easy manufacture, reduces the design burden, moreover, the telescoping process of the telescoping device 100 of the present embodiment is performed in the sleeve 31, so that the occupied volume is small, the weight of the telescopic device 100 is reduced, the cost is saved, and the advantages are more obvious under the condition that the number of telescopic stages is more. In addition, this embodiment adopts screw rod 32 and device to adopt screw rod 32 and the spiral transmission mode of one-level drive wheel 12 and the meshing of second grade drive wheel 22, and it belongs to the cooperation of relatively accurate mechanical transmission, and the flexible length of one-level telescopic link 11 and second grade telescopic link 21 is accurately controlled to the number of turns of rotation of accessible screw rod 32, and then can the whole telescoping device 100 of accurate control flexible stroke, excellent in use effect.

In this embodiment, the secondary driving wheel 22 is provided with a secondary jack 221, the secondary thimble 23 includes a secondary movable rod 231, a secondary insertion rod 232 and a secondary driving member 233, which are respectively connected with the secondary movable rod 231, and the secondary movable rod 231 is in sliding fit with the secondary telescopic rod 21; when the secondary expansion link 21 is at the second initial position, the secondary driving member 233 can drive the secondary movable rod 231 to drive the secondary insertion rod 232 to be inserted into the secondary insertion hole 221 and lock the secondary driving wheel 22, or when the secondary expansion link 21 extends to the second limit position, the secondary insertion rod 232 is separated from the secondary insertion hole 221 and releases the secondary driving wheel 22; when the secondary telescopic rod 21 is at the second limit position, the secondary driving wheel 22 is disengaged from the screw 32. It should be noted that the second initial position of the two-stage telescopic rod 21 refers to both the initial position before the two-stage telescopic rod 21 starts to extend and the position where the two-stage telescopic rod 21 is fully retracted.

The secondary driving wheel 22 of the present embodiment can use a ratchet wheel in the prior art, and can also use a nut or a nut-like wheel in the prior art which can be engaged with the screw 32, and the secondary driving wheel 22 of the present embodiment is illustrated as a ratchet wheel. The number of the secondary insertion holes 221 is multiple, and the multiple secondary insertion holes 221 are uniformly arranged along the circumferential direction of the secondary driving wheel 22 at intervals, so that the secondary insertion rod 232 can be conveniently inserted into any one secondary insertion hole 221 to lock the secondary driving wheel 22 in the rotating process of the secondary driving wheel 22. Specifically, when the secondary expansion link 21 is at the second initial position, the secondary driving member 233 drives the secondary movable rod 231 to drive the secondary insertion rod 232 to be inserted into any one of the secondary insertion holes 221, so as to lock the secondary driving wheel 22, until the secondary driving wheel 22 drives the secondary expansion link 21 to extend to the second initial position, the secondary driving member 233 drives the secondary movable rod 231 to drive the secondary insertion rod 232 to disengage from the secondary insertion hole 221, so as to release the secondary driving wheel 22, the secondary expansion link 21 stops extending, the secondary driving wheel 22 is in an idle running state, and the secondary driving wheel 22 is disengaged from the screw 32 at this time, so that the secondary expansion link 21 is not restrained by the screw 32 in the subsequent expansion process of the primary expansion link 11, and thus expands and contracts along with the expansion and contraction of.

As shown in fig. 3 to 12, in this embodiment, the secondary telescopic rod 21 includes a secondary mounting seat 211 and a secondary rod body 212, the secondary rod body 212 is connected to the secondary mounting seat 211, the secondary driving wheel 22 is mounted in the secondary mounting seat 211, and the secondary mounting seat 211 axially limits the secondary driving wheel 22 to prevent the secondary driving wheel 22 from axially moving; the second grade movable rod 231 slides and wears to locate second grade mount pad 211, and second grade inserted bar 232 is connected in the one end that second grade movable rod 231 kept away from second grade pole body 212, and second grade driving piece 233 is the second spring, and the first end and the second grade mount pad 211 of second spring are connected, and the second end of second spring is passed through second connecting block 234 and is connected with the one end of keeping away from second grade inserted bar 232 on second grade movable rod 231.

Specifically, a second step surface 213 is formed at the joint of the secondary rod body 212 and the secondary mounting seat 211, a second connection surface 2111 is formed in the secondary mounting seat 211, a first end of the second spring is connected with the second connection surface 2111, and a second abutting surface 113 is arranged on the primary telescopic rod 11 near the free end; when the secondary expansion link 21 is in the second initial position, the second connecting block 234 extends out of the second step surface 213 and the secondary insertion link 232 is inserted into the secondary insertion hole 221; when the secondary expansion link 21 extends to the second limit position, the second abutting surface 113 abuts against the second step surface 213 and pushes the second connecting block 234, so that the secondary movable rod 231 drives the secondary insertion rod 232 to disengage from the secondary insertion hole 221.

In this embodiment, the second-stage insertion rod 232 is connected to the rear end of the second-stage movable rod 231, and the front end of the second-stage movable rod 231 is connected to the second connection block 234. The second spring is a compression spring, the rear end of the compression spring is connected to the second connecting block 234, and the front end of the compression spring is connected to the second connecting surface 2111. When the secondary expansion link 21 is at the second initial position, due to the elastic force of the compression spring, the second connecting block 234 connected with the secondary movable rod 231 extends forwards to the second step surface 213, and the secondary inserted rod 232 is inserted into the secondary insertion hole 221, so as to lock the secondary driving wheel 22 until the secondary driving wheel 22 drives the secondary expansion link 21 to extend to the second limit position, when the secondary expansion link 21 extends to the second limit position, the second abutting surface 113 abuts against the second step surface 213 on the front side thereof, the second abutting surface 113 pushes the second connecting block 234 to move backwards, and further the secondary movable rod 231 is driven to slide backwards relative to the secondary mounting seat 211, so that the secondary inserted rod 232 is separated from the secondary insertion hole 221, so as to release the secondary driving wheel 22, and the secondary expansion link 21 stops extending. The structural design of each component of the secondary telescoping mechanism 20 of this embodiment is reasonable and ingenious, and the first extension process of the telescoping device 100 is conveniently realized. Alternatively, in other embodiments, the secondary movable rod 231 may be a relatively small electric telescopic rod to drive the secondary insertion rod 232 to move to lock or release the secondary driving wheel 22.

In this embodiment, the primary driving wheel 12 is provided with a primary jack 121, the primary thimble 13 includes a primary movable rod 131, a primary inserted rod 132 and a primary driving member 133 respectively connected to the primary movable rod 131, and the primary movable rod 131 is in sliding fit with the primary telescopic rod 11; when the primary telescopic rod 11 is at the first initial position, the primary inserted link 132 is disengaged from the primary insertion hole 121 and releases the primary driving wheel 12, or when the secondary telescopic rod 21 extends to the second limit position, the primary driving member 133 can drive the primary movable rod 131 to drive the primary inserted link 132 to be inserted into the primary insertion hole 121 and lock the primary driving wheel 12; when the primary telescopic rod 11 is at the first limit position, the primary driving wheel 12 and the screw 32 are kept in a meshed state. It should be noted that the first initial position of the first telescopic rod 11 refers to both the initial position before the first telescopic rod 11 starts to extend and the position where the first telescopic rod 11 is fully retracted.

The primary driving wheel 12 of the present embodiment may be a ratchet wheel as in the prior art, or a nut-like wheel as in the prior art which can engage with the screw 32, and the primary driving wheel 12 of the present embodiment is illustrated as a ratchet wheel. The number of the first-stage insertion holes 121 is multiple, and the multiple first-stage insertion holes 121 are uniformly arranged along the circumferential direction of the first-stage driving wheel 12 at intervals, so that the first-stage insertion rods 132 can be inserted into any one of the first-stage insertion holes 121 to lock the first-stage driving wheel 12 in the rotating process of the first-stage driving wheel 12. Specifically, when one-level telescopic link 11 is in first initial position, one-level driving piece 133 drives one-level movable rod 131 and drives one-level inserted bar 132 and break away from one-level jack 121, thereby release one-level drive wheel 12, one-level drive wheel 12 is in temporary idle running state, one-level telescopic link 11 does not stretch out and draw back for sleeve 31, keep at first initial position, until second telescopic link 21 stretches out to the second extreme position when, one-level driving piece 133 drives one-level movable rod 131 and drives one-level inserted bar 132 and insert in arbitrary one-level jack 121, in order to lock one-level drive wheel 12, until one-level drive wheel 12 drive second telescopic link 21 stretches out to first extreme position, guarantee that one-level telescopic link 11 and second telescopic link 21 stretch out. When the first-stage telescopic rod 11 is at the first limit position, the first-stage driving wheel 12 and the screw 32 are kept in a meshed state, so that the normal extending process and the subsequent retracting process of the first-stage telescopic rod 11 are ensured.

As shown in fig. 3 to 12, in the present embodiment, the first-stage telescopic rod 11 includes a first-stage mounting seat 111 and a first-stage rod body 112, the first-stage rod body 112 is connected to the first-stage mounting seat 111, the first-stage driving wheel 12 is mounted in the first-stage mounting seat 111, and the first-stage mounting seat 111 axially limits the first-stage driving wheel 12 to prevent the first-stage driving wheel 12 from axially moving. In the secondary telescopic rod 21 slip cap located first grade pole body 112, one-level movable rod 131 slides and wears to locate one-level mount pad 111, one-level inserted bar 132 is connected in one-level movable rod 131 one end that is close to one-level pole body 112, one-level driving piece 133 is first spring, the first end and the one-level mount pad 111 of first spring are connected, the second end of first spring is connected through the one end of keeping away from one-level inserted bar 132 on first connecting block 134 and the one-level movable rod 131.

Specifically, a first step surface 114 is formed at the joint of the primary lever body 112 and the primary mounting seat 111, an action surface 1111 is formed on one side of the primary mounting seat 111, which is away from the first step surface 114, and the first connecting block 134 extends out of the action surface 1111; a first connection surface 1112 is formed in the primary mounting seat 111, a first end of the first spring is connected with the first connection surface 1112, and a first abutting surface 311 is arranged on one side, facing the primary mounting seat 111, of the inner surface of the sleeve 31; when the primary telescopic rod 11 is at the first initial position, the first abutting surface 311 abuts against the action surface 1111 and pushes the first connecting block 134 to drive the primary inserting rod 132 to disengage from the primary inserting hole 121; the telescopic device 100 of the present embodiment further includes a linkage mechanism 40, when the secondary telescopic rod 21 extends to the second limit position, the linkage mechanism 40 pulls the primary telescopic rod 11 at the first initial position to start extending, and the primary telescopic rod 11 drives the primary driving wheel 12 to move so that the primary insertion rod 132 is inserted into the primary insertion hole 121.

In this embodiment, the first-stage insertion rod 132 is connected to the front end of the first-stage movable rod 131, and the rear end of the first-stage movable rod 131 is connected to the first connecting block 134. The first spring is a compression spring, the front end of the compression spring is connected to the first connection surface 1112, and the rear end of the compression spring is connected to the first connection block 134. When the first-stage telescopic rod 11 is at the first initial position, because the first abutting surface 311 abuts against the action surface 1111, the first connecting block 134 is pushed forward, the first connecting block 134 drives the first-stage insertion rod 132 to move forward, so as to drive the first-stage movable rod 131 and the first-stage insertion rod 132 to move forward and separate from the first-stage insertion hole 121, so as to release the first-stage driving wheel 12, the first-stage driving wheel 12 is in a temporary idle running state, until the second-stage telescopic rod 21 extends to the second limit position, that is, when the second-stage telescopic rod 21 extends completely, the second-stage telescopic rod 21 pulls the first-stage telescopic rod 11 at the first initial position to extend forward through the linkage mechanism 40, the first-stage telescopic rod 11 drives the first-stage driving wheel 12 to move forward in the process of moving forward of the first-stage telescopic rod 11, the action surface 1111 is separated from the first abutting surface 311, the first connecting block 134 extends out of the action surface 1111 again under the action of the first spring, and causes, so as to lock the primary driving wheel 12 until the primary driving wheel 12 drives the primary telescopic rod 11 to extend to the first limit position. The structural design of each component of the primary telescopic mechanism 10 of the embodiment is reasonable and ingenious, and the second extension process of the telescopic device 100 is convenient to realize. Alternatively, in other embodiments, the primary movable rod 131 may also be a relatively small electric telescopic rod to drive the primary insertion rod 132 to move to lock or release the primary driving wheel 12.

In a preferred embodiment, the linkage mechanism 40 includes a pull rod 41 and a hinge rod 42, wherein the pull rod 41 is slidably connected to the inner wall of the primary rod body 112, and a first hook 411 and a second hook 412 are respectively formed at two ends of the pull rod 41; the first drag hook 411 is hooked at the first end of the hinge rod 42, the first-stage movable rod 131 abuts against the second end of the hinge rod 42, and the position, between the first end and the second end, on the hinge rod 42 is hinged to the first-stage rod body 112 through a hinge shaft. When the secondary telescopic rod 21 extends to the second limit position, the second draw hook 412 is hooked on the secondary telescopic rod 21 and drives the pull rod 41 to move along the extending direction of the secondary telescopic rod 21 through the secondary telescopic rod 21, so that the second end of the hinge rod 42 rotates around the hinge shaft and simultaneously pulls the primary telescopic rod 11 at the first initial position to extend for a certain distance, and the pre-compressed first spring drives the primary mounting seat 111 to be far away from the first connecting block 134, so that the primary movable rod 131 pulls the primary insertion rod 132 to be inserted into the primary insertion hole 121; when the primary telescopic rod 11 is retracted to the first initial position, the first abutting surface 311 pushes the first connecting block 134, so that the primary movable rod 131 pushes the second end of the hinge rod 42 to rotate reversely around the hinge shaft, and the secondary telescopic rod 21 at the second limit position is pulled by the pull rod 41 to move along the retraction direction of the primary telescopic rod 11, so that the secondary driving wheel 22 is reengaged with the screw rod 32.

The rear end of the pull rod 41 forms a first draw hook 411, the first draw hook 411 is hooked on the upper end of the hinge rod 42, the first-stage movable rod 131 is abutted to the lower end of the hinge rod 42, and the middle position of the hinge rod 42 is hinged to the first-stage rod body 112 through a hinge shaft. The length of the pull rod 41 of this embodiment is set according to the actual use condition, and specifically, the distance between the first hook 411 and the second hook 412 is slightly smaller than the distance between the hinge shaft and the second step surface 213 when the distance is at the second limit position. When the secondary telescopic rod 21 extends to the second limit position, the second step surface 213 of the secondary telescopic rod 21 abuts against the second draw hook 412, so that the second draw hook 412 is hooked on the second step surface 213, and further the draw rod 41 is pulled to move forward by the forward pulling force of the secondary telescopic rod 21, the upper end of the hinge rod 42 is pulled to move forward in the pulling forward process, so that the lower end of the hinge rod 42 pushes the first-stage movable rod 131 backward, at this time, because the first connecting block 134 and the first abutting surface 311 abut against each other, the first-stage movable rod 131 cannot move backward, the hinge shaft moves forward under the reaction condition, and further the first-stage telescopic rod 11 at the first initial position is pulled to extend forward, so as to drive the first-stage driving wheel 12 to move forward relative to the first-stage movable rod 131, so that the first-stage insertion rod 132 is inserted into any one of the first-stage insertion holes 121, the first-stage driving wheel 12 is locked, and the first-stage, two continuous and sequential elongation processes of the telescopic device 100 are achieved.

When the first-stage telescopic rod 11 retracts from the first limit position to the first initial position, the first-stage inserted rod 132 is kept in a state of locking the first-stage driving wheel 12, until the first-stage telescopic rod 11 retracts to the first initial position, the action surface 1111 of the first-stage telescopic rod 11 abuts against the first abutting surface 311 of the sleeve 31, the first abutting surface 311 pushes the first-stage movable rod 131 to move forward, the lower end of the hinged rod 42 is driven to move forward in the process of moving forward the first-stage movable rod 131, the upper end of the hinged rod 42 moves backward, the pull rod 41 is pulled to move backward by the first pull hook 411, the second pull hook 412 pulls the second-stage telescopic rod 21 to move backward by the second step surface 213, in the process of moving backward the second-stage telescopic rod 21, the second-stage driving wheel 22 is reengaged with the screw rod 32, the second step surface 213 is separated from the second abutting surface 113, and the second-stage inserted rod 232 is reinserted into any one of the second-, so as to lock the secondary driving wheel 22 and further retract the secondary expansion link 21 to the second initial position under the reverse rotation of the screw rod 32, i.e. to fully retract the secondary expansion link 21, thereby realizing two continuous and sequential retraction processes of the telescopic device 100.

As shown in fig. 3 to 14, in this embodiment, the telescopic device 100 further includes a locking mechanism 50, the locking mechanism 50 includes an insertion block 51, a compression spring 52 and a sliding block 53, one end of the insertion block 51 away from the secondary telescopic rod 21 is connected to the primary telescopic rod 11 through the compression spring 52, a locking insertion hole 2121 matched with the insertion block 51 is formed in an outer wall of the secondary telescopic rod 21, a first inclined surface 511 is formed on one side of the insertion block 51 facing the sliding block 53, the sliding block 53 is in sliding fit with the primary telescopic rod 11, specifically, a friction ring 1121 is disposed at a free end of the primary rod body 112 of the primary telescopic rod 11, the friction ring 1121 is sleeved outside the secondary rod body 212, the sliding block 53 is slidably mounted on the friction ring 1121, and the friction ring 1121 is further provided with a sliding hole 1122 for sliding the sliding. One end of the sliding block 53, which is far away from the secondary telescopic rod 21, extends out of the outer wall of the primary telescopic rod 11, and a second inclined surface 531 which is in sliding fit with the first inclined surface 511 is formed on one surface, which faces the inserting block 51, of the sliding block 53; when the secondary telescopic rod 21 extends to the second limit position, the compression spring 52 drives the plug block 51 to be inserted into the locking jack 2121, so that the secondary telescopic rod 21 is locked with the primary telescopic rod 11; when the first telescopic rod 11 retracts to the first initial position, the sleeve 31 pushes the sliding block 53 to slide in the direction in which the first telescopic rod 21 extends, so that the insertion block 51 is disengaged from the locking insertion hole 2121 through the sliding fit of the second inclined surface 531 and the first inclined surface 511, so as to unlock the second telescopic rod 21 and the first telescopic rod 11.

Specifically, as shown in fig. 4, 5, 12 to 14, a locking insertion hole 2121 is formed at a position of the secondary lever body 212 of the secondary telescopic lever 21 close to the secondary mounting seat 211, the insertion block 51 is arranged at a position on the primary lever body 112 close to the free end, a first inclined surface 511 is formed at the rear side of the insertion block 51, the first inclined surface 511 is inclined downward from the rear to the front, a second inclined surface 531 is formed at the front side of the slide block 53, and the second inclined surface 531 is inclined downward from the rear to the front so as to match with the first inclined surface 511. When secondary telescopic rod 21 stretches out to the second extreme position, secondary mounting seat 211 slides to the position that is close to the free end of one-level pole body 112, and locking jack 2121 corresponds with the position of inserted block 51, inserted block 51 inserts locking jack 2121 under compression spring 52's elastic force, thereby with the locking of one-level telescopic rod 11 and secondary telescopic rod 21, both guarantee that follow-up one-level telescopic rod 11 drives secondary telescopic rod 21 and one-level telescopic rod 11 synchronous flexible at flexible in-process, can guarantee again that under secondary telescopic rod 21 received the effect of backward external force, can keep the lock state with one-level telescopic rod 11, guarantee telescoping device 100's structural stability. When the first-stage telescopic rod 11 retracts to the first initial position, the free end face of the sleeve 31 abuts against the upper end of the sliding block 53 and pushes the sliding block 53 to move forwards, in the process that the sliding block 53 moves forwards, the second inclined face 531 on the sliding block 53 is in sliding fit with the first inclined face 511 on the inserting block 51, and due to the inclined characteristics of the first inclined face 511 and the second inclined face 531, the inserting block 51 can be lifted in the process that the sliding block 53 moves forwards, so that the inserting block 51 is separated from the locking insertion hole 2121, the second-stage telescopic rod 21 is unlocked with the first-stage telescopic rod 11, and the normal retracting process of the subsequent second-stage telescopic rod 21 is ensured.

In this embodiment, the telescopic driving mechanism 33 includes a driving motor (not shown) and two bevel gears 331 engaged with each other, wherein one bevel gear 331 is fixedly sleeved on the screw rod 32, and the other bevel gear 331 is connected to the driving motor. The driving motor drives the bevel gear 331 connected with the driving motor to rotate, and then drives the bevel gear 331 sleeved on the screw rod 32 to rotate, so that motive power is provided for the screw rod 32, the rotation or reverse rotation of the screw rod 32 is realized, and the telescopic process of the multi-stage telescopic device is further realized. In order to save space, the telescopic driving mechanism 33 of the present embodiment may be installed in the base 30. This embodiment is through single driving motor as original power to adopt pure mechanical structure's mode to design multistage telescoping device, simple structure and convenient preparation, this multistage telescoping device's concertina ratio can reach more than 2.5, satisfies multiple application scene and operation requirement.

The overall working process of the packing box dismantling device in the embodiment is as follows: when the packaging box 300 needs to be disassembled, the telescopic motor drives the screw rod 32 to rotate through the two bevel gears 331, the first-stage thimble 13 releases the first-stage driving wheel 12, the first-stage driving wheel 12 is in an idle running state, and the first-stage telescopic rod 11 does not extend or retract relative to the sleeve 31 and is kept at a first initial position; the secondary ejector pin 23 locks the secondary driving wheel 22, the secondary driving wheel 22 drives the secondary expansion link 21 to slide forward relative to the primary expansion link 11 from the second initial position to the second limit position along with the rotation of the screw 32, the second abutting surface 113 abuts against the second step surface 213 and pushes the second connecting block 234 so that the secondary movable rod 231 drives the secondary insertion rod 232 to disengage from the secondary insertion hole 221, and the secondary ejector pin 23 releases the secondary driving wheel 22. At this time, the locking mechanism 50 locks the two-stage telescopic rod 21 and the one-stage telescopic rod 11, meanwhile, the second step surface 213 on the two-stage telescopic rod 21 pulls the pull rod 41, the one-stage telescopic rod 11 is pulled by the pull rod 41, the action surface 1111 is separated from the first abutting surface 311, the first connecting block 134 extends out of the action surface 1111 again under the action of the first spring, and the one-stage movable rod 131 drives the one-stage insertion rod 132 to be inserted into any one of the one-stage insertion holes 121, so as to realize that the one-stage thimble 13 locks the one-stage driving wheel 12, the one-stage driving wheel 12 drives the one-stage telescopic rod 11 to slide forward relative to the sleeve 31 and extend to the first limit position along with the rotation of the screw 32, understandably, due to the locking effect of the locking mechanism 50, the two-stage telescopic rod 21 continues to extend relative to the sleeve, after the telescopic device 100 is completely extended, the secondary driving wheel 22 of the secondary telescopic rod 21 is disengaged from the screw rod 32, while the primary driving wheel 12 of the primary telescopic rod 11 is kept engaged with the screw rod 32, and the primary thimble 13 keeps locking the primary driving wheel 12; in the process that telescoping device 100 stretches out, drive the vaulting pole 60 of connecting on second grade telescopic link 21 and stretch into in packing carton 300, disassemble driving motor drive pivot 82 and rotate, and then drive lantern ring 90 through stay cord 83 and slide backward, the lantern ring 90 is to propping piece 70 and remove the restraint, and the free end that props piece 70 then radially opens along vaulting pole 60, along with the continuation of second grade telescopic link 21 and vaulting pole 60 stretch out the box wall of the front side opening part with packing carton 300 completely and strut.

After the box wall at the opening at the front side of the packing box 300 is opened, the telescopic motor drives the screw rod 32 to rotate reversely through the two bevel gears 331, and the primary driving wheel 12 drives the primary telescopic rod 11 to retract from the first limit position to the first initial position relative to the sleeve 31 along with the reverse rotation of the screw rod 32, so that it can be understood that the secondary telescopic rod 21 retracts relative to the sleeve 31 along with the retraction of the primary telescopic rod 11 due to the locking action of the locking mechanism 50. When the first-stage telescopic rod 11 retracts to the first initial position, the first abutting surface 311 abuts against the acting surface 1111 and pushes the first connecting block 134 to drive the first-stage inserting rod 132 to disengage from the first-stage inserting hole 121, the first-stage ejector pin 13 releases the first-stage driving wheel 12, the first-stage driving wheel 12 returns to the idle state again, and at this time, the locking mechanism 50 unlocks the second-stage telescopic rod 21 and the first-stage telescopic rod 11. Meanwhile, the first-stage thimble 13 on the first-stage telescopic rod 11 reversely pulls the pull rod 41, the second-stage telescopic rod 21 is pulled to move backwards through the pull rod 41, so that the second-stage driving wheel 22 moves backwards and is re-engaged with the screw rod 32, the second step surface 213 is separated from the second abutting surface 113, due to the elastic force of the second spring, the second connecting block 234 connected with the second-stage movable rod 231 extends forwards out of the second step surface 213, the second-stage inserted rod 232 is inserted into the second-stage jack 221, the second-stage thimble 23 re-locks the second-stage driving wheel 22, the second-stage driving wheel 22 rotates reversely along with the screw rod 32, and the second-stage telescopic rod 21 is driven to retract to the second initial position from the second initial position relative to the first-stage telescopic rod 11, so that two continuous and orderly retracting processes of the. In the retracting process of the telescopic device 100, the support rod 60 connected to the secondary telescopic rod 21 is driven to retract backwards, and in the retracting process, the box wall at the opening at the rear side is completely unfolded by using the unfolded support sheet 70, so that the packaging box 300 is completely disassembled. With the continuous retraction of the two-stage telescopic rod 21 and the support rod 60, the collar 90 abuts against the free end of the one-stage telescopic rod 11, and the collar 90 slides forward relatively with the retraction of the support rod 60, so as to re-constrain the support sheet 70, so that the support sheet 70 contracts and clings to the support rod 60, and prepare for next disassembling of the packing box 300.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a packing carton deconsolidator which characterized in that, packing carton deconsolidator includes:

the opening device comprises a support rod, a support piece and a disassembling driving mechanism, the support rod is connected with the telescopic rod, the support piece is arranged outside the support rod, and the disassembling driving mechanism is used for driving the support piece to expand or contract along the radial direction of the support rod so as to correspondingly enable the support piece to open the packaging box;

the supporting piece is a strip-shaped elastic piece, the supporting rod is connected with the free end of the telescopic rod and is coaxially arranged with the telescopic rod, the connecting end of the supporting piece is connected with the supporting rod, and the free end of the supporting piece extends along the extension direction of the telescopic rod; the strutting device also comprises a lantern ring sleeved outside the strutting piece; the disassembling driving mechanism is used for driving the lantern ring to slide along the telescopic direction of the telescopic rod relative to the supporting piece so as to restrain the supporting piece from contracting and clinging to the supporting rod, or the disassembling driving mechanism is used for releasing the restraint of the supporting piece so as to enable the free end of the supporting piece to expand along the radial direction of the supporting rod.

2. The packing box dismantling device according to claim 1, wherein the number of the stay pieces is plural, and the plural stay pieces are arranged in sequence along a circumferential direction of the stay.

3. The package dismantling device as claimed in claim 1,

the disassembly driving mechanism comprises a support, a rotating shaft, a pull rope and a disassembly driving motor, the rotating shaft is rotatably mounted on the support, one end of the pull rope is wound on the rotating shaft, the other end of the pull rope is connected with the lantern ring, and the disassembly driving motor is used for driving the rotating shaft to rotate so as to pull the lantern ring to move along the retraction direction of the telescopic rod through the pull rope and remove the constraint on the supporting sheet;

the telescopic device further comprises a base, the base comprises a sleeve and a screw rod which is rotatably installed in the sleeve, the support is installed outside the sleeve, the telescopic rod is slidably sleeved in the sleeve, a driving wheel is sleeved outside the screw rod, the driving wheel is meshed with the screw rod, the telescopic driving mechanism is used for driving the screw rod to rotate and drive the telescopic rod to stretch and retract relative to the sleeve through the driving wheel, the lantern ring can be abutted to the free end of the sleeve when the telescopic rod retracts, so that the lantern ring can move relative to the telescopic rod along the extending direction of the telescopic rod and restrain the supporting sheet to retract and tightly attach to the supporting rod.

4. The package dismantling device as claimed in claim 3, wherein said telescoping means further comprises:

the primary telescopic mechanism comprises a primary telescopic rod, a primary driving wheel and a primary thimble, the primary telescopic rod is slidably sleeved in the sleeve, the primary telescopic rod axially limits the primary driving wheel, the primary driving wheel is sleeved outside the screw and meshed with the screw, the primary thimble is connected with the primary telescopic rod, and the primary thimble is used for locking or releasing the primary driving wheel so as to match the primary driving wheel to drive the primary telescopic rod to extend out of a first initial position to a first limit position relative to the sleeve or retract to the first initial position from the first limit position;

the secondary telescopic mechanism comprises a secondary telescopic rod, a secondary driving wheel and a secondary thimble, the secondary telescopic rod is slidably sleeved in the primary telescopic rod, the secondary telescopic rod axially limits the secondary driving wheel, the secondary driving wheel is sleeved outside the screw rod and can be meshed with the screw rod, the secondary thimble is connected with the secondary telescopic rod, and the secondary thimble is used for locking or releasing the secondary driving wheel so as to match the secondary driving wheel to drive the secondary telescopic rod to extend out of a second initial position to a second limit position or retract to the second initial position from the second limit position relative to the primary telescopic rod;

the telescopic link is the second grade telescopic link, the drive wheel is the second grade drive wheel, when the one-level telescopic link is in first initial position, the free end of one-level telescopic link stretches out telescopic free end, the lantern ring can be in when the second grade telescopic link retracts with the free end butt of one-level telescopic link.

5. The packing box dismantling device according to claim 4, wherein the secondary driving wheel is provided with a secondary jack, the secondary ejector pin comprises a secondary movable rod, a secondary jack rod and a secondary driving member, the secondary jack rod and the secondary driving member are respectively connected with the secondary movable rod, and the secondary movable rod is in sliding fit with the secondary telescopic rod; when the secondary telescopic rod is located at the second initial position, the secondary driving piece can drive the secondary movable rod to drive the secondary insertion rod to be inserted into the secondary insertion hole and lock the secondary driving wheel, or when the secondary telescopic rod extends to the second limit position, the secondary insertion rod is separated from the secondary insertion hole and releases the secondary driving wheel; when the secondary telescopic rod is located at the second limit position, the secondary driving wheel is disengaged from the screw rod.

6. The packaging box dismantling device according to claim 5, wherein said secondary telescopic rod comprises a secondary mounting seat and a secondary rod body connected with said secondary mounting seat, said secondary driving wheel is mounted in said secondary mounting seat, and said secondary mounting seat axially limits said secondary driving wheel; the secondary movable rod penetrates through the secondary mounting seat in a sliding mode, the secondary insertion rod is connected to one end, far away from the secondary rod body, of the secondary movable rod, the secondary driving piece is a second spring, the first end of the second spring is connected with the secondary mounting seat, and the second end of the second spring is connected with one end, far away from the secondary insertion rod, of the secondary movable rod through a second connecting block;

a second step surface is formed at the joint of the secondary rod body and the secondary mounting seat, a second connecting surface is formed in the secondary mounting seat, the first end of the second spring is connected with the second connecting surface, and a second abutting surface is arranged on the primary telescopic rod close to the free end; when the secondary expansion link is located at the second initial position, the second connecting block extends out of the second step surface and enables the secondary insertion rod to be inserted into the secondary insertion hole; when the second-stage telescopic rod extends to the second limit position, the second abutting surface abuts against the second step surface and pushes the second connecting block to enable the second-stage movable rod to drive the second-stage inserted rod to be separated from the second-stage jack.

7. The packing box dismantling device according to claim 5, wherein the primary driving wheel is provided with a primary jack, the primary ejector pin comprises a primary movable rod, a primary jack rod and a primary driving member, the primary jack rod and the primary driving member are respectively connected with the primary movable rod, and the primary movable rod is in sliding fit with the primary telescopic rod; when the primary telescopic rod is located at the first initial position, the primary inserted link is separated from the primary jack and releases the primary driving wheel, or when the secondary telescopic rod extends to the second limit position, the primary driving piece can drive the primary movable rod to drive the primary inserted link to be inserted into the primary jack and lock the primary driving wheel; when the primary telescopic rod is located at the first limit position, the primary driving wheel is meshed with the screw rod;

the primary telescopic rod comprises a primary mounting seat and a primary rod body connected with the primary mounting seat, the primary driving wheel is mounted in the primary mounting seat, and the primary mounting seat axially limits the primary driving wheel; the secondary telescopic rod is sleeved in the primary rod body in a sliding manner; the one-level movable rod slides and wears to locate the one-level mount pad, the one-level inserted bar is connected the one-level movable rod is close to the one end of one-level pole body, the one-level driving piece is first spring, the first end of first spring with the one-level mount pad is connected, the second end of first spring through first connecting block with keep away from on the one-level movable rod the one end of one-level inserted bar is connected.

8. The packaging box dismantling device according to claim 7, wherein a joint of the primary lever body and the primary mounting seat forms a first step surface, a side of the primary mounting seat facing away from the first step surface forms an acting surface, and the first connecting block extends out of the acting surface; a first connecting surface is formed in the primary mounting seat, a first end of the first spring is connected with the first connecting surface, and a first abutting surface is arranged on one side, facing the primary mounting seat, of the inner surface of the sleeve; when the primary telescopic rod is located at the first initial position, the first abutting surface abuts against the action surface and pushes the first connecting block to drive the primary inserted link to be separated from the primary jack;

the telescopic device further comprises a linkage mechanism, when the second-stage telescopic rod extends to the second limit position, the linkage mechanism pulls the first-stage telescopic rod at the first initial position to extend, and the first-stage telescopic rod drives the first-stage driving wheel to move so that the first-stage inserted link is inserted into the first-stage insertion hole;

wherein, the link gear includes:

the pull rod is connected with the inner wall of the primary rod body in a sliding mode, and a first pull hook and a second pull hook are formed at two ends of the pull rod respectively;

the first drag hook is arranged at the first end of the hinged rod, the primary movable rod is abutted against the second end of the hinged rod, and the position, between the first end and the second end, on the hinged rod is hinged with the primary rod body through a hinged shaft;

when the second-stage telescopic rod extends to the second limit position, the second drag hook is hooked on the second-stage telescopic rod and drives the pull rod to move along the extending direction of the second-stage telescopic rod through the second-stage telescopic rod, so that the second end of the hinged rod rotates around the hinged shaft and simultaneously pulls the first-stage telescopic rod at the first initial position to extend, and the first-stage inserted rod is inserted into the first-stage jack;

when the first-stage telescopic rod retracts to the first initial position, the first abutting surface pushes the first connecting block, so that the first-stage movable rod pushes the second end of the hinged rod to rotate reversely around the hinged shaft, the second-stage telescopic rod at the second limit position is pulled through the pull rod to move in the retracting direction of the first-stage telescopic rod, and the second-stage driving wheel is meshed with the screw rod again.

9. The packaging box dismantling device according to any one of claims 4 to 8, wherein the telescopic device further comprises a locking mechanism, the locking mechanism comprises an insertion block, a compression spring and a sliding block, one end of the insertion block, which is away from the secondary telescopic rod, is connected with the primary telescopic rod through the compression spring, a locking jack matched with the insertion block is formed in the outer wall of the secondary telescopic rod, a first inclined surface is formed on one side, facing the sliding block, of the insertion block, the sliding block is in sliding fit with the primary telescopic rod, one end, which is away from the secondary telescopic rod, of the sliding block extends out of the outer wall of the primary telescopic rod, and a second inclined surface, which is in sliding fit with the first inclined surface, is formed on one side, facing the insertion block, of the sliding block;

when the secondary telescopic rod extends to the second limit position, the compression spring drives the insertion block to be inserted into the locking insertion hole, so that the secondary telescopic rod and the primary telescopic rod are locked;

when the first-stage telescopic rod retracts to the first initial position, the sleeve pushes the sliding block to slide towards the extending direction of the first-stage telescopic rod, so that the inserting block is separated from the locking jack through the sliding fit of the second inclined surface and the first inclined surface, and the second-stage telescopic rod and the first-stage telescopic rod are unlocked.