A collection device
Patent Information
- Application Number
- CN202521604683.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-07-30
AI Technical Summary
[0002]以粘虫板或者粘虫卷为主的有害生物监测诱捕方式,其粘虫板在使用过程中需要根据虫体粘附的情况通过人工对于粘虫板进行更新,费时费力;而使用粘虫卷,虽然更换的频率较低,但需要定期将粘虫卷展开,并将已使用的粘虫卷进行收集,在收集过程中由于需要粘附虫体厚度增大,导致其安装拆卸难度大
[0025]本实用新型通过采用上述结构能够满足虫体诱捕、粘纸的自动收集,通过所述原点校正装置来控制所述粘纸的展开长度,来实现粘纸的自动展开,进行粘纸的更换,其自动程度高。通过所述粘板收集架根据需求进行展开或者折叠,所述粘板收集架展开时可便于粘纸的收集,所述粘板收集架折叠时,更便于粘板收集架的安装和拆卸,其操作简单便捷,更便于实际过程中的应用;同时,通过增加所述第三支撑轴,所述第三支撑轴与第一主动轴可相互临近或抵靠,已使用的粘纸可通过穿过第三支撑轴与第一主动轴之间的缝隙,来实现可将粘附被诱捕的虫体所述粘纸进行压缩,来增加所述粘纸的收集量,降低人工取出粘板收集架的频率,减少所述收集装置的人力成本。本实用新型可单独使用或者安装于虫体智能监测设备中作为虫体引诱、捕获以及粘纸自动更换的模块进行配套使用,其兼容性好。
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Figure CN224819286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pest control, specifically a collection device. Background Technology
[0002] Pest monitoring and trapping methods that primarily use sticky insect boards or sticky insect rolls require manual replacement of the sticky insect boards based on the amount of insects adhering to them, which is time-consuming and labor-intensive. While sticky insect rolls are replaced less frequently, they still need to be unfolded periodically and used rolls need to be collected. During the collection process, the increased thickness of the adhering insects makes installation and disassembly difficult.
[0003] Therefore, a collection device is needed that can both capture the insects and collect the sticky paper, while also facilitating the replacement of the sticky paper. Summary of the Invention
[0004] Based on the actual needs of sticky insect monitoring, this utility model develops a collection device to realize the automatic collection of insects and sticky paper. It is simple and convenient to operate, with good trapping ability, strong automation, high convenience, and good compatibility. It can be used alone as a collection device or installed in intelligent insect monitoring equipment to meet the requirements of insect trapping, monitoring and collection.
[0005] Technical solution
[0006] A collection device for collecting trapped insects, characterized in that: the collection device comprises: Adhesive plate support frame; A sticky board collection rack, comprising two rectangular sub-frames connected by a pivot, making the sticky board collection rack foldable; and Adhesive paper, used to adhere to and transport the trapped insects, is attached at one end to the sticky board collection frame and positioned between the sticky board support frame and the sticky board collection frame. When the sticky board collection frame is unfolded, it is parallel to the sticky board support frame and has a storage interval. When the sticky paper conveys the trapped insects, one of the sticky board collection frame and the sticky board support frame is driven, thereby driving the sticky paper to rotate and conveying the trapped insects to the space between the sticky board collection frame and the sticky board support frame. The trapped insects are conveyed to the sticky board collection frame by the sticky paper, and the sticky paper is collected by winding.
[0007] The collection device includes a sticky board support frame, sticky boards, and a sticky board collection rack to achieve automatic unfolding and timed collection of sticky boards. Simultaneously, a drive system conveys used sticky sheets to the sticky board collection rack for collection. Used sticky boards can be collected by winding them layer by layer on the collection rack. To facilitate replacement of used sticky sheets, the sticky board collection rack can be folded to improve ease of removal and reduce space requirements; that is, the sticky board collection rack is folded for removal and unfolded for installation and use.
[0008] Furthermore, the adhesive plate support frame includes: A first support shaft, a second support shaft, a first support beam, and a second support beam, wherein the first support beam and the second support beam are parallel and spaced apart. One end of the first support beam and one end of the second support beam are connected to the first support shaft, and the other end of the first support beam and the second support beam are connected to the second support shaft. A square support plate is provided between the first support beam and the second support beam.
[0009] The main functions of the sticky board support frame are as follows: first, to ensure the stability of the structure and form a sticky insect plane; second, to facilitate the translation of the sticky paper along the sticky board support frame, which facilitates the capture of target pests and allows the sticky paper to be driven to translate or rotate, so as to replace the sticky paper.
[0010] Furthermore, multiple fixing pieces are arranged in pairs on the first and second support beams, and the fixing pieces are at a certain distance from the square support plate to form a channel for the adhesive paper to pass through.
[0011] Furthermore, the adhesive paper can extend through the channel between the upper surface of the adhesive plate support frame and the fixing piece, and after passing through the adhesive plate support frame, it can be folded back onto the adhesive plate collection frame after bypassing one of the first support shaft and the second support shaft.
[0012] The fixing plate is used to secure the adhesive paper, ensuring that the adhesive paper extends through the channels and moves within a fixed space during movement, without going out of bounds. The adhesive paper can be moved from the insect support frame to the sticky board collection frame, realizing the automatic collection of the adhesive paper used to trap insects without manual operation.
[0013] Furthermore, the collecting device also includes an adhesive roll, on which the adhesive is wound, and the adhesive roll is disposed near the other of the first support shaft and the second support shaft.
[0014] The adhesive paper can be installed on an adhesive paper roll, and the adhesive paper shaft is detachable. The adhesive paper shaft can be installed or removed as needed. When replacing the adhesive paper, it can be gradually unfolded by rotating it on the adhesive paper roll. The adhesive paper shaft can be parallel to the first support shaft or the second support shaft, and its installation height can be lower than or equal to the height of the adhesive plate support frame.
[0015] Furthermore, the adhesive plate support frame also includes a third support shaft. The third support shaft is located below the square support plate, and its two ends are fixed by the first connecting rod and the second connecting rod, respectively. The first connecting rod is perpendicular to the first supporting beam, and the second connecting rod is perpendicular to the second supporting beam. The first connecting rod and the second connecting rod are parallel and corresponding in position.
[0016] The first connecting rod and the second connecting rod have a retractable elastic structure.
[0017] The third support shaft and elastic structure are located below the square support plate. This is mainly because when insects stick to the sticky paper, the thickness of the sticky paper increases, and it occupies a larger volume during collection. The third support shaft can control its hanging distance through the elastic structure, which can compress the sticky paper covered with insects and reduce the thickness of the sticky paper. When the sticky board collection rack rolls up multiple layers of sticky insect boards, the thickness after compression will be significantly less than the thickness of the multi-layer sticky board before compression.
[0018] Furthermore, the adhesive board support frame is provided with multiple uprights, which extend toward the adhesive board collection frame and abut against the adhesive board collection frame, thereby forming the storage interval between the adhesive board collection frame and the adhesive board support frame.
[0019] The upright is used to fix the adhesive board support frame, so that the adhesive board collection frame and the adhesive board support frame form a certain space, which facilitates the storage of adhesive paper.
[0020] Furthermore, the adhesive plate support frame also includes an origin correction device, which is located outside the first support beam or the second support beam. The origin correction device includes: a first rotating wheel, a second rotating wheel, a rotating belt connecting the first rotating wheel and the second rotating wheel, and a limit switch; The outer side of the rotating belt has a protrusion. When the protrusion touches the limit switch, the collecting device stops operating.
[0021] Furthermore, the first rotating wheel extends coaxially with either the first or the second support shaft. The rotation of the coaxially extended support shaft drives the first rotating wheel to rotate, and the rotation of the first rotating wheel drives the rotating belt to move in a closed loop around the first rotating wheel and the second rotating wheel.
[0022] The first rotating wheel of the origin correction device extends coaxially with the first or second support shaft of the adhesive board support frame. Rotation of the first or second support shaft rotates used adhesive paper to the adhesive board collection rack and unfolds unused adhesive paper along the adhesive board support frame, thus enabling adhesive board replacement. Simultaneously, rotation of the first or second support shaft also causes the first rotating wheel of the origin correction device, which rotates synchronously with the first or second support shaft, to rotate. This causes the rotating belt to rotate, and the protrusion of the rotating belt moves from any point until it reaches the limit switch, at which point it stops operating. The first and second support shafts then stop rotating, and adhesive paper replacement ceases. The distance the protrusion travels is the length of the adhesive paper unfolding. The length of the unfolding adhesive paper can be controlled by setting the length of the rotating belt as needed, thus achieving adhesive board renewal. When the circumference of the rotating belt is equal to the length of the crossbeam of the adhesive board support frame, clean adhesive paper can be replaced without wasting adhesive paper.
[0023] Furthermore, the adhesive plate collection rack also includes a first drive shaft, a third crossbeam, a fourth crossbeam, a fifth crossbeam, a sixth crossbeam, and a fourth support shaft. The third crossbeam and the fourth crossbeam are connected between the first drive shaft and the rotating shaft. The fifth crossbeam and the sixth crossbeam are connected between the fourth support shaft and the rotating shaft. Multiple parallel horizontal bars are provided between the third and fourth horizontal beams and between the fifth and sixth horizontal beams.
[0024] The third crossbeam, the fourth crossbeam, the first drive shaft, and the crossbars form a first sub-frame; the fifth crossbeam, the sixth crossbeam, the fourth support shaft, and the crossbars form a second sub-frame. The two sub-frames are connected by a pivot, and can be unfolded into a single plane or folded into two planes with an included angle. To ensure the stability of the sub-frame structure, multiple crossbars are added between the third and fourth crossbeams. The outer layer of the adhesive paper collection rack has tracks that enable synchronous rotation of the first drive shaft and the fourth support shaft. The first drive shaft can be driven by a power unit or as needed, and the tracks can cause the fourth support wheel to rotate synchronously with the first drive shaft for adhesive paper collection. During collection, the parallel or vertical movement of the adhesive paper can drive the synchronous rotation of the first and second support shafts, achieving the collection of used adhesive paper and the unfolding of unused adhesive paper.
[0025] This invention, through the aforementioned structure, satisfies the functions of insect trapping and automatic collection of adhesive paper. The origin correction device controls the unfolded length of the adhesive paper, enabling automatic unfolding and replacement, resulting in a high degree of automation. The adhesive collection rack can be unfolded or folded as needed. When unfolded, the rack facilitates adhesive paper collection; when folded, it facilitates installation and disassembly, making operation simple and convenient, and more suitable for practical application. Furthermore, by adding a third support shaft, which can be close to or abut against the first drive shaft, used adhesive paper can pass through the gap between the third support shaft and the first drive shaft, compressing the adhesive paper used to trap insects, thereby increasing the amount of adhesive paper collected, reducing the frequency of manual removal of the collection rack, and lowering the labor costs of the collection device. This invention can be used alone or installed in an intelligent insect monitoring device as a module for insect attraction, capture, and automatic adhesive paper replacement, exhibiting good compatibility.
[0026] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description
[0027] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.
[0028] Figure 1 This schematic diagram illustrates the structure of a collection device according to an embodiment of the present invention. Figure 2 This schematic diagram shows a side view of the structure of a collection device according to an embodiment of the present invention; Figure 3 This schematic diagram shows a top view of the structure of a collection device according to an embodiment of the present invention; Figure 4 This schematic diagram shows a top view of the structure of a sticky plate support frame of a collection device according to an embodiment of the present invention; Figure 5 This schematically illustrates a side view of the structure of a sticky plate support frame for a collection device according to an embodiment of the present invention. Figure 6 A schematic bottom view of the structure of the third support shaft of the adhesive plate support frame of a collection device according to an embodiment of the present invention is shown. Figure 7 This schematically illustrates a side view of the structure of the third support shaft of the adhesive plate support frame of a collection device according to an embodiment of the present invention. Figure 8 This schematic diagram illustrates the position of the origin correction device of a collection device according to an embodiment of the present invention. Figure 9 This schematic diagram illustrates the structure of an origin calibration device for a collection apparatus according to an embodiment of the present invention. Figure 10 This schematic diagram illustrates the structure of a sticky plate collection rack of a collection device according to an embodiment of the present invention. Figure 11 This schematically illustrates a side view of the structure of a sticky plate collection rack of a collection device according to an embodiment of the present invention; Figure 12 This schematic diagram illustrates the structure of the adhesive plate support frame of a collection device according to an embodiment of the present invention in a folded state. Figure 13 This schematic diagram illustrates the state of the adhesive plate collection rack of a collection device according to an embodiment of the present invention, with the rack wrapped around the track. 1-Adhesive plate support frame; 2-Adhesive plate collection rack; 3-Adhesive paper; 4-Adhesive paper roll; 11-First support shaft; 12-Second support shaft; 13-First support crossbeam; 14-Second support crossbeam; 15-Square support plate; 16-Fixing plate; 17-Third support shaft; 171-First connecting rod; 172-Second connecting rod; 173-Elastic structure; 18-Column; 19-Origin correction device; 191-First rotating wheel; 192-Second rotating wheel; 193-Rotating belt; 194-Limit switch; 195-Protrusion; 21-First sub-frame; 22-Second sub-frame; 23-Rotating shaft; 24-First drive shaft; 25-Third crossbeam; 26-Fourth crossbeam; 27-Fifth crossbeam; 28-Sixth crossbeam; 29-Fourth support shaft; 210-Horizontal bar; 211-Track. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model. Example
[0030] This utility model provides a collection device for collecting trapped insects. The collection device includes: Sticker support frame 1, sticker collection rack 2, sticky paper 3, The sticky board collection rack 2 includes two rectangular sub-frames, namely the first sub-frame 21 and the second sub-frame 22. The two sub-frames are connected by a pivot 23, making the sticky board collection rack 2 foldable. The adhesive paper 3 is used to adhere to and transport the trapped insects. It is attached to the sticky board collection frame 2 at one end and is positioned between the sticky board support frame 1 and the sticky board collection frame 2. When the sticky board collection frame 2 is unfolded, it is parallel to the sticky board support frame 1 and has a storage interval. When the sticky paper 3 conveys the trapped insects, one of the sticky board collection frame 2 and the sticky board support frame 1 is driven, thereby driving the sticky paper 3 to rotate and convey the trapped insects to the space between the sticky board collection frame 2 and the sticky board support frame 1. The trapped insects are conveyed to the sticky board collection frame 2 by the sticky paper 3, and the sticky paper 3 is collected by winding.
[0031] The adhesive board support frame 1 is located above the adhesive board collection frame 2, and the adhesive board support frame 1 is parallel to the adhesive board collection frame 2; there are multiple columns 18 in the middle for separation; the adhesive paper roll 4 is fixed to one side of the adhesive board support frame 1, near the first support shaft 11, and the adhesive paper roll 4 can be wound with adhesive paper 3. The adhesive paper 3 extending from the adhesive paper roll 4 passes through the middle hole between the adhesive paper support frame 1 and the fixing piece 16. The adhesive paper 3 is unfolded on the square support plate 15, then passes around the second support shaft 12, and folds back to pass around the third support shaft 17 located below the square support plate 15.
[0032] The third support shaft 17 is fixed at both ends by a first connecting rod 171 and a second connecting rod 172, respectively. The first connecting rod 171 is perpendicular to the first support beam 13, and the second connecting rod 172 is perpendicular to the second support beam 14. The first connecting rod 171 and the second connecting rod 172 are parallel and corresponding in position. The first connecting rod 171 and the second connecting rod 172 have a telescopic elastic structure 173 to adjust the hanging distance of the third support shaft 17. The third support shaft 17 is located below the square support plate 15 on the side closer to the first support shaft 12, away from the first support shaft 11 and the adhesive roll 4.
[0033] The adhesive paper 3 bypasses the third support shaft 17 and passes through the storage interval between the adhesive plate collection rack 2 and the adhesive plate support rack 1.
[0034] The storage compartment is a space created by the adhesive board collection rack 2, the adhesive board support rack 1, and the upright 18. In some embodiments, the upright 18 extends toward and abuts against the adhesive board collection rack 2, and the upright 18 makes the adhesive board support rack 1 and the adhesive board collection rack 2 parallel, thereby forming a storage compartment in the space between the adhesive board collection rack 2 and the adhesive board support rack 2.
[0035] The adhesive paper 3 passes around to the fourth support shaft 29 of the adhesive plate collection frame 2, unfolds along the bottom of the adhesive plate collection frame 2, passes around the first drive shaft 24, and fixes the adhesive paper 3 to the outer track of the adhesive plate collection frame 2. The track is a membrane structure tightly wrapped around the outside of the adhesive plate collection frame 2 to achieve synchronous rotation of the first drive shaft 24 and the fourth support shaft 29.
[0036] The third support shaft 17 can be adjusted in its hanging position according to requirements, particularly the thickness of the adhesive paper and the type of insects to be collected, via the elastic structure 173 on the first connecting rod 171 and the second connecting rod 172. When the adhesive paper is thick or the insects adhering to its surface are large, the hanging height can be reduced through the elastic structure to ensure that the used adhesive paper can pass through the gap between the third support shaft 17 and the first drive shaft 24 while compressing the insects and reducing the thickness of the used adhesive paper. When the adhesive paper is thin or the insects adhering to its surface are small, the hanging height can be increased through the elastic structure to achieve the purpose of compressing the used adhesive paper. Therefore, the third support shaft 17 can either abut against the first drive shaft 24 or be at a certain distance from it.
[0037] The adhesive board collection rack 2 includes two sub-frames: a first sub-frame 21 and a second sub-frame 22. The first sub-frame 21 can be composed of a third crossbeam 25, a fourth crossbeam 26, a first drive shaft 24, and a crossbar 210. The second sub-frame 22 can be composed of a fifth crossbeam 27, a sixth crossbeam 28, a fourth support shaft 24, and a crossbar 210. The two sub-frames of the adhesive board collection rack 2 are connected by a pivot 23, allowing the adhesive board collection rack 2 to be in a foldable or unfoldable state.
[0038] When the adhesive tape 3 is full of insects and needs to be replaced, the first drive shaft 24 starts working, collecting the used adhesive tape and unfolding the unused adhesive tape. As the adhesive tape begins to move, the protrusion 195 on the origin correction device 19, located outside the rotating belt 193, disengages from the limit switch 194 and begins to move along the rotating belt 193. The rotating belt 193 moves in a ring between the first rotating wheel 191 and the second rotating wheel 192. When the protrusion 195 contacts the limit switch 194, the first drive wheel 24 stops working, and the first rotating wheel 191 stops rotating. In some embodiments, the first rotating wheel 191 is extended coaxially with the first support shaft 11 to rotate synchronously with the first support shaft 11. In some embodiments, the first rotating wheel 191 is extended coaxially with the second support shaft 12 to rotate synchronously with the first support shaft 12.
[0039] The distance the adhesive tape 3 can be unfolded can be set by the distance the protrusion 195 on the rotating belt 193 moves. A limit switch 194 can be set along the path of the movement according to the unfolding distance of the adhesive tape. In some embodiments, one limit switch 194 can be set, and in some embodiments, multiple limit switches 194 can be set.
[0040] Simultaneously, the used adhesive paper to be collected passes through the gap between the third support shaft 17 and the first active shaft 24, squeezing the insects on the adhesive paper to reduce its thickness and increase its collection length. If the adhesive paper runs out or the space in the adhesive board collection rack 2 is insufficient, the adhesive board collection rack 2 needs to be removed and cleaned. During removal, the adhesive board collection rack can be folded along the pivot 23. Folding the adhesive board collection rack along the pivot 23 creates a certain angle between the first sub-frame 21 and the second sub-frame 22, with the angle ranging from 0° to 180°. The first sub-frame 21 and the second sub-frame 22 can be interchanged without affecting the folding or unfolding function along the pivot 23.
[0041] Analysis of the experimental results shows that this invention can achieve efficient insect trapping, automatic unfolding of unused adhesive paper, and automatic collection of used adhesive paper. The unfolded length of unused adhesive paper can be set according to requirements and application environment. When the adhesive paper is used up or when the used adhesive paper is removed as needed, the folding adhesive plate collection rack can be used to facilitate operation. This invention has good trapping ability, strong automation, strong convenience, and good compatibility. It can be used alone as a collection device or installed in an intelligent insect monitoring device to meet the requirements of insect trapping, monitoring, and collection.
[0042] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A collection device for collecting trapped insects, characterized in that, The collection device includes: Adhesive plate support frame; A sticky board collection rack, comprising two rectangular sub-frames connected by a pivot, making the sticky board collection rack foldable; and Adhesive paper, used to adhere to and transport the trapped insects, is attached at one end to the sticky board collection frame and positioned between the sticky board support frame and the sticky board collection frame. When the sticky board collection frame is unfolded, it is parallel to the sticky board support frame and has a storage interval. When the sticky paper conveys the trapped insects, one of the sticky board collection frame and the sticky board support frame is driven, thereby driving the sticky paper to rotate and conveying the trapped insects to the space between the sticky board collection frame and the sticky board support frame. The trapped insects are conveyed to the sticky board collection frame by the sticky paper, and the sticky paper is collected by winding.
2. The collecting device according to claim 1, characterized in that, The adhesive plate support frame includes: A first support shaft, a second support shaft, a first support beam, and a second support beam, wherein the first support beam and the second support beam are parallel and spaced apart. One end of the first support beam and one end of the second support beam are connected to the first support shaft, and the other end of the first support beam and the second support beam are connected to the second support shaft. A square support plate is provided between the first support beam and the second support beam.
3. The collecting device according to claim 2, characterized in that, Multiple fixing pieces are arranged in pairs on the first support beam and the second support beam plate. The fixing pieces are at a certain distance from the square support plate, forming a channel for the adhesive paper to pass through.
4. The collecting device according to claim 3, characterized in that, The adhesive paper can extend through the channel between the upper surface of the adhesive plate support frame and the fixing piece, and after passing through the adhesive plate support frame, it bypasses one of the first support shaft and the second support shaft and folds back onto the adhesive plate collection frame.
5. The collecting device according to claim 4, characterized in that, The collecting device also includes an adhesive roll, on which the adhesive is wound, and the adhesive roll is positioned near the other of the first support shaft and the second support shaft.
6. The collecting device according to claim 2 or 3, characterized in that, The adhesive plate support frame also includes a third support shaft. The third support shaft is located below the square support plate, and its two ends are fixed by the first connecting rod and the second connecting rod, respectively. The first connecting rod is perpendicular to the first supporting beam, the second connecting rod is perpendicular to the second supporting beam, and the first connecting rod and the second connecting rod are parallel and corresponding in position; The first connecting rod and the second connecting rod have a retractable elastic structure.
7. The collecting device according to claim 1, characterized in that, The adhesive board support frame is provided with multiple uprights, which extend toward and abut against the adhesive board collection frame, thereby forming the storage interval between the adhesive board collection frame and the adhesive board support frame.
8. The collecting device according to claim 2, characterized in that, The adhesive plate support frame also includes an origin correction device, which is located outside the first support beam or the second support beam. The origin correction device includes: a first rotating wheel, a second rotating wheel, a rotating belt connecting the first rotating wheel and the second rotating wheel, and a limit switch; The outer side of the rotating belt has a protrusion. When the protrusion touches the limit switch, the collecting device stops operating.
9. The collecting device according to claim 8, characterized in that, The first rotating wheel extends coaxially with the first support shaft or the second support shaft. The rotation of the first support shaft or the second support shaft drives the first rotating wheel to rotate. The rotation of the first rotating wheel drives the rotating belt to move in a closed loop around the first rotating wheel and the second rotating wheel.
10. The collecting device according to claim 1, characterized in that, The adhesive plate collection rack also includes a first drive shaft, a third crossbeam, a fourth crossbeam, a fifth crossbeam, a sixth crossbeam, and a fourth support shaft. The third crossbeam and the fourth crossbeam are connected between the first drive shaft and the rotating shaft. The fifth crossbeam and the sixth crossbeam are connected between the fourth support shaft and the rotating shaft. Multiple parallel horizontal bars are provided between the third and fourth horizontal beams and between the fifth and sixth horizontal beams.