A replacement structure of a bactrocera dorsalis sticking board

Abstract

The utility model relates to bactrocera dorsalis trapping technical field, and disclose a kind of replacement structure of bactrocera dorsalis sticking board, including the support plate located bactrocera dorsalis sticking board rear, the quick-change structure for replacing bactrocera dorsalis sticking board is installed in support plate front wall.The utility model is unfolded by bactrocera dorsalis sticking board, and the upper and lower pages of its opening is directly connected with the front end of limiting rod, and then in turn through limiting rod, pivot and fixed rod until the back surface contacts the front wall of support plate, and then limit rod is actuated to be folded upwards or downwards under the action of pivot, so that the front end of limiting rod moves and contacts the glue surface of bactrocera dorsalis sticking board, and can be fixed, when bactrocera dorsalis sticking board needs to be replaced, similarly, only need to reset limiting rod, and then bactrocera dorsalis sticking board that has been used is pulled out, the above steps are repeated to complete replacement, reach the advantage that traditional bandage is discarded, and bactrocera dorsalis sticking board is directly buckled, whether disassembly and assembly are fast and convenient.

Description

Technical Field

[0001] This utility model relates to the field of oriental fruit fly trapping technology, specifically to a replacement structure for an oriental fruit fly adhesive plate. Background Technology

[0002] The citrus fruit fly (Bactrocera dorsalis) is a broad-spectrum fruit-boring pest with a wide host range, primarily hosting mango, peach, pear, and citrus fruits. Its population size and distribution are related to the planting area and distribution region of the host plants, and are also influenced by the species, variety, and maturity of the host plants. In Yunnan, the citrus fruit fly can occur year-round. In winter, it is mainly distributed in Xishuangbanna, as well as parts of Simao, Honghe, Yuxi, Dehong, and Wenshan prefectures. As temperatures rise in spring, its distribution gradually expands from south to north, reaching its widest range in late summer and early autumn, generally covering most of Yunnan south of Yao'an. —"Damage and Distribution of the Citrus Fruit Fly in Yunnan," Journal of Yunnan University (Natural Science Edition). The citrus fruit fly is a typical fruit-boring pest; the adults are strong fliers, and chemical control is only effective regionally and rarely achieves ideal control results. Meanwhile, chemical control often leads to pesticide resistance in pests, agricultural product safety issues, and environmental pollution. Physical control can effectively avoid the drawbacks of chemical control and has been widely applied in the control of oriental fruit flies with significant results. For example, as disclosed in paragraphs 0013-0016 of the specification of existing technology CN216415747U, "...open the adhesive board, with the non-adhesive side facing upwards to form a 120° rounded corner as a rain-proof surface. Thread hanging ropes through the fixing holes at the four corners and fix it evenly to the relevant fruit trees or crops. Then tear off the anti-adhesive cellophane or elastic plastic film, placing the double-sided adhesive board in the center, vertically downwards. Compared to commercial adhesive boards, this utility model can increase the trapping area by 100%, increase the rain-proof surface to prevent sun exposure and rain washing, and add fixing holes, metal strips, and other windproof devices, making the adhesive board more durable..."

[0003] The aforementioned technical solution improves the sticky board by giving it a rain-proof surface and a hanging rope on the top, which is then threaded through the tree branch and tied tightly. In fact, the cost of adding waterproof coating directly to the sticky insect glue is lower than the cost of preparing the rain-proof surface separately. For example, the glue disclosed in the existing technology CN119522888A has its own waterproof function. After applying it to the sticky insect board, there is no need to increase the production cost to add a rain-proof surface. Moreover, the hanging rope fixing is also an existing technology. The yellow sticky insect board currently sold on the market is model BD-23, with a size of 20*25cm, which is bound to the fruit tree with a strap. The aforementioned existing technology does not improve the actual use. When fruit farmers use sticky insect boards to catch citrus fruit flies, they still need to clear away the branches and leaves of the fruit tree and then use a strap to tie the sticky insect to the branch. After 1-3 days, the sticky insect board becomes ineffective or is covered with citrus fruit flies and other insects, so the sticky insect board is removed and a new sticky insect board is tied and fixed. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a replacement structure for the fruit fly adhesive board, which has the advantages of eliminating the need for traditional straps and directly fastening the fruit fly adhesive board, making both assembly and disassembly quick and convenient, thus solving the aforementioned technical problems.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a replacement structure for a fruit fly adhesive board, including a support plate located behind the fruit fly adhesive board, a connecting rod fixedly connected to the rear wall of the support plate, a connecting clip with a semi-circular opening connected to the tail end of the connecting rod, a screw hole opened on the side wall of the connecting clip, a screw rod penetrating the screw hole, and a card plate rotatably connected to the part of the screw rod located inside the connecting clip; The front wall of the support plate is equipped with a quick-change structure for replacing the fruit fly adhesive plate; It includes at least two fixing rods installed on the front wall of the support plate and located behind the back of the fruit fly adhesive board, wherein the front end of the fixing rod is movably installed to contact the front adhesive surface of the fruit fly adhesive board.

[0006] As a preferred embodiment of this utility model, there are two fixing rods. The two fixing rods are fixedly installed in the central area of ​​the upper and lower ends of the front wall of the support plate, and the two fixing rods are located on the same vertical line. The front end of the fixing rod is fixedly connected to one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the tail end of the limiting rod. The fixing rod, the rotating shaft and the limiting rod together form a rod body perpendicular to the front wall of the support plate for passing through the fruit fly adhesive board. The rotating shaft is two overlapping "T" shapes, and the intersection of the two overlapping "T" shapes is pierced by rivets to form the rotation of the rotating shaft.

[0007] As a preferred technical solution of this utility model, a locking component is also provided on one side of the junction of the two "T" shapes. The locking component includes a groove, which is formed around the junction of any one of the two "T" shapes. The locking component also includes a locking strip made of rubber that fits into the inner side of the groove. The locking strip is installed around the side of the two "T" shapes that does not have a groove. The rotation of the shaft causes the relative positions of the multiple locking strips and the groove between the two "T" shapes to change.

[0008] As a preferred embodiment of this utility model, the support plate is further provided with an extension structure. The extension structure includes a section formed at the bottom of the support plate, cutting off the bottom of the support plate from the main body of the support plate. The cut-off portion of the bottom of the support plate includes a fixing rod, and an insert rod is connected upward to the cut-off portion of the bottom of the support plate. The insert rod is inserted into a slot formed at the bottom surface of the top of the support plate. The front and rear walls of the slot are provided with multiple pin holes that penetrate to the surface of the support plate from top to bottom. A through hole is formed at the top of the insert rod. A sealing block is fixedly connected to the center part of the inner side of the through hole. A spring is fixedly connected to the two side walls of the sealing block at both ends of the through hole. The tail end of the spring is fixedly connected to a pin that slides inside the through hole. The pin passes through the pin hole to form a snap-fit, which is used to fix the bottom and top of the support plate.

[0009] As a preferred embodiment of this utility model, the quick-change structure further includes a hinge connected to the middle of the support plate. The hinge divides the entire support plate into two sections. There are four hinges, and each of the four hinges is connected to a separate block. A connecting rod is fixedly connected to the rear of each block. There are multiple fixing rods, which are symmetrically installed on both sides of the front wall of the support plate. On the side of the multiple fixing rods that are close to each other, i.e., the side wall close to the front wall of the support plate, a roller is rotatably connected. There is a gap of 0.1mm-0.2mm between the surface of the roller and the front wall of the support plate.

[0010] As a preferred technical solution of this utility model, the roller surface is coated with a polytetrafluoroethylene coating with a thickness of 0.15mm.

[0011] As a preferred technical solution of this utility model, a support strip is also fixedly connected to the bottom of the front wall of the plate below the support plate. The support strip is "U"-shaped, and a small fruit fly adhesive board is inserted into the "U"-shaped recess of the support strip.

[0012] Compared with the prior art, this utility model provides a replacement structure for the adhesive board of the oriental fruit fly, which has the following beneficial effects: This invention involves unfolding a fruit fly adhesive board and directly connecting the openings of its top and bottom pages to the front end of a limiting rod. The rod then passes sequentially through the limiting rod, a rotating shaft, and a fixing rod until it contacts the front wall of the support plate at the back. The limiting rod is then moved, causing it to fold upwards or downwards under the action of the rotating shaft, moving its front end to contact the adhesive surface of the fruit fly adhesive board. When the rotating shaft rotates, the two "T"-shaped parts rub against each other. At this time, the multiple locking strips and grooves between the two "T"-shaped parts change position relative to each other. Because the rubber locking strips are resilient, they will not break the rotating shaft even when compressed. Simultaneously, the thickness between the locking strips and the grooves is between 0.5-1mm. Utilizing the interlocking of these two elements, the rotating shaft rotates 90 degrees, meaning the limiting rod moves from the front wall perpendicular to the support plate... The guide rod is positioned parallel to the front wall of the support plate, locking the pivot to overcome gravity and prevent the limit rod from flipping down. When replacing the fruit fly adhesive board, simply reset the limit rod. Move the limit rod to form a rod perpendicular to the front wall of the support plate, consisting of the fixing rod, pivot, and limit rod. Then, pull out the used fruit fly adhesive board, unfold the new fruit fly adhesive board, align the openings of the top and bottom pages with the limit rod, and insert it until the back contacts the front wall of the support plate. Then, move the limit rod to fold it upwards or downwards so that the front end contacts the adhesive surface of the fruit fly adhesive board. This achieves the advantage of eliminating the need for traditional straps and directly fastening the fruit fly adhesive board, making both assembly and disassembly quick and convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model; Figure 2 This is a front sectional view of the support plate structure according to Embodiment 1 of this utility model; Figure 3 This is an exploded view of the rotating shaft structure according to Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the plate structure deformation in Embodiment 2 of this utility model; Figure 6 This is an enlarged schematic diagram of the roller structure of this utility model; Figure 7 This is an enlarged schematic diagram of the sealing block structure of this utility model.

[0014] The components are as follows: 1. Support plate; 101. Hinge; 103. Plate; 2. Connecting clip; 3. Fixing rod; 301. Rotating shaft; 302. Groove; 303. Locking strip; 4. Limiting rod; 5. Cross section; 501. Insert rod; 502. Through hole; 503. Sealing block; 504. Pin; 505. Slot; 506. Pin hole; 6. Roller; 7. Support strip. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0016] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figure 1-6 A replacement structure for a fruit fly sticky board includes a support plate 1 located behind the fruit fly sticky board. A connecting rod is fixedly connected to the rear wall of the support plate 1. The tail end of the connecting rod is connected to a connecting clip 2 with a semi-circular opening. A screw hole is opened on the side wall of the connecting clip 2. A screw rod passes through the screw hole. The part of the screw rod located inside the connecting clip 2 is also rotatably connected to a clip plate. The front wall of the support plate 1 is equipped with a quick-change structure for replacing the fruit fly adhesive plate; Includes at least two fixing rods 3 installed on the front wall of the support plate 1 and located behind the back of the fruit fly adhesive board, with the front end of the fixing rod 3 movably contacting the front adhesive surface of the fruit fly adhesive board as a limiting rod 4.

[0019] As per the instruction manual Figure 1 As shown, both the fixing rod 3 and the support plate are made of polypropylene. The fixing rod 3 is fixedly connected to the front wall of the support plate 1 by heat welding.

[0020] Furthermore, there are two fixing rods 3. The two fixing rods 3 are fixedly installed in the center area of ​​the upper and lower ends of the front wall of the support plate 1, and the two fixing rods 3 are located on the same vertical line. The front end of the fixing rod 3 is fixedly connected to one end of the rotating shaft 301, and the other end of the rotating shaft is fixedly connected to the tail end of the limiting rod 4. The fixing rod 3, the rotating shaft 301 and the limiting rod 4 together form a rod body perpendicular to the front wall of the support plate 1 for passing through the fruit fly adhesive board. The rotating shaft 301 is two overlapping "T" shapes. The overlapping part of the two overlapping "T" shapes is pierced by rivets to form the rotation of the rotating shaft 301.

[0021] Furthermore, a locking component is provided on one side where the two "T" shapes meet. The locking component includes a groove 302, which surrounds the surface where either of the two "T" shapes meets. The locking component also includes a locking strip 303 made of rubber that fits inside the groove 302. The locking strip 303 is installed around the side of the two "T" shapes where the groove 302 is not provided. The rotation of the rotating shaft 301 causes the relative positions of the multiple locking strips 303 between the two "T" shapes and the groove to change.

[0022] Furthermore, the support plate 1 is also provided with an extension structure, which includes a section 5 cut off from the support plate body at the bottom of the support plate 1. The cut-off part of the bottom of the support plate 1 includes a fixing rod 3, and an insertion rod 501 is connected upward at the cut-off part of the bottom of the support plate 1. The insertion rod 501 is inserted into a slot 505 opened on the bottom surface of the top of the support plate 1. Multiple pin holes 506 are opened at intervals from top to bottom on the front and rear walls of the slot 505, penetrating to the surface of the support plate 1. A through hole 502 is opened through the top of the insertion rod 501. A sealing block 503 is fixedly connected to the center part inside the through hole 502. A spring is fixedly connected to the two side walls of the sealing block 503 at both ends of the through hole 502. The tail end of the spring is fixedly connected to a pin 504 that slides inside the through hole 502. The pin 504 passes through the pin hole 506 to form a snap-fit, which is used to fix the bottom and top of the support plate 1.

[0023] As per the instruction manual Figure 3 As shown, the friction between the two "T" shapes is increased by the fit between the strip 303 and the groove 302.

[0024] Furthermore, a hinge 101 is connected to the middle of the support plate 1. The hinge 101 divides the entire support plate 1 into two sections 103. There are four hinges 101. Each of the four hinges 101 is connected to a separate block. A connecting rod is fixedly connected to the back of the block. There are multiple fixing rods 3. The multiple fixing rods 3 are symmetrically installed on both sides of the front wall of the support plate 1. On the side of the multiple fixing rods 3 that is close to each other, that is, the side wall close to the front wall of the support plate 1, a roller 6 is rotatably connected. The surface of the roller 6 is coated with a polytetrafluoroethylene coating with a thickness of 0.15mm.

[0025] Furthermore, a support strip 7 is fixedly connected to the bottom of the front wall of the plate 103 below the support plate 1. The support strip 7 is "U" shaped, and a small fruit fly adhesive board is inserted into the "U" shaped recess of the support strip 7.

[0026] The roller 6 is made of alumina ceramic. Alumina ceramic rollers are commercially available finished products with a cost starting from ten yuan per unit. In this application, the alumina ceramic roller is combined with a polytetrafluoroethylene coating by spraying. The roller 6 is coated with polytetrafluoroethylene. Polytetrafluoroethylene has extremely low surface energy and is a very smooth and hydrophobic material. This makes it difficult for the roller 6 to adhere to the adhesive surface of the fruit fly adhesive board and form an effective adhesive bond. Therefore, in actual use, the fruit fly adhesive board will not adhere to the surface of the roller 6 when passing through the gap between the roller 6 and the front wall of the support plate 1.

[0027] Hinge 101 is a small damping hinge, which is an existing product on the market, model DP031. By using a damping hinge, the friction between the two plates 103 is increased when they rotate, so that the two plates 103 will not be overturned due to the weight of the hinge 101 after they are flipped and brought closer together by the rear connecting rod.

[0028] Furthermore, in Yunnan, the diameter of mature branches of fruit trees such as mango, peach, pear and citrus is generally 8-20cm. Therefore, the inner diameter of the connecting card 2 in this application is set to 20cm-30cm. At the same time, in order to reduce weight, except for the roller 6, all parts in this application are made of PP material, which has high hardness and corrosion resistance and is suitable for outdoor use. Moreover, PP material is a very mature plastic material that can be recycled, making it more environmentally friendly.

[0029] Example 1 When it is necessary to connect the support plate 1 to the fruit tree branch in this embodiment, first hold the connecting rod on the rear wall of the support plate 1, then align the notch of the connecting card 2 with the fruit tree branch, and rotate the screw. When the screw rotates, it moves relative to the screw hole and then moves towards the inside of the connecting card 2. At the same time, the movement of the screw synchronously drives the card plate to contact the fruit tree branch. Then the card plate and the other end of the inner side of the connecting card 2 form a clamp. At this time, the connecting card 2 and the support plate 1 at its front end are fixedly connected to the branch.

[0030] Furthermore, after the support plate 1 is fixedly connected, the oriental fruit fly adhesive board can be installed or replaced. In this embodiment, the fixing rod 3, the rotating shaft 301, and the limiting rod 4 together form a rod perpendicular to the front wall of the support plate 1 for passing through the oriental fruit fly adhesive board. Currently, all existing oriental fruit fly adhesive boards have openings for tying ties, such as the adhesive board CN216415747U cited in the background art of this application and the model BD-23, which both have this opening. Therefore, the oriental fruit fly adhesive board can be directly unfolded. Then, the openings on the top and bottom pages are directly connected to the front end of the limiting rod 4. The rod then passes through the limiting rod 4, the rotating shaft 301, and the fixing rod 3 in sequence until it contacts the front wall of the support plate 1 on the back. The limiting rod 4 is then moved to fold upwards or downwards, causing its front end to move and contact the adhesive surface of the fruit fly adhesive board. Further, as the rotating shaft 301 rotates, the two "T" shapes rub against each other. At this time, the relative positions of the multiple locking strips 303 and the groove 302 between the two "T" shapes change. Due to the rubber locking strips 3... 03. It has toughness and will not break the shaft even under compression. The thickness between the locking strip 303 and the groove 302 is between 0.5-1mm. The interlocking of these two components allows the shaft 301 to rotate 90 degrees, meaning the limiting rod 4 moves from perpendicular to the front wall of the support plate 1 to parallel to it, thus locking the shaft 301 and preventing it from tilting downwards due to gravity. Furthermore, in this embodiment, the shaft 301 can also be replaced with a small damping hinge. When it is necessary to replace the fruit fly adhesive plate, the same... Simply reset the limiting rod 4, move the limiting rod 4 to form a rod body that is perpendicular to the front wall of the support plate 1, together with the fixing rod 3, the rotating shaft 301 and the limiting rod 4. Then pull out the used fruit fly adhesive board, unfold the new fruit fly adhesive board and align the openings of the upper and lower pages with the limiting rod 4 and insert it until the back touches the front wall of the support plate 1. Then move the limiting rod 4 to fold it up or down so that the front end moves and touches the adhesive surface of the fruit fly adhesive board. Furthermore, as per the instruction manual... Figure 2As shown, the size of the fruit fly adhesive board is customizable. To avoid the large distance between the two openings of the customized large-area fruit fly adhesive board causing the limiting rod 4 in this embodiment to not fit well, this embodiment also provides an extension structure for adjusting the relative distance of the limiting rod 4. By pressing the pin 504 located on the front and rear walls of the support plate 1, it is forced to retract into the through hole 502. At this time, the pin 504 no longer contacts the pin hole 506 at the top of the slot 505. Then, the rod 501 connected to the pin 504 begins to move down inside the slot 505. The downward movement of the rod 501 will also drive the bottom of the support plate 1 to move down. After contacting the pin hole 506 below the slot 505, the pin 504 pressed by the finger is released, allowing it to pop out of the through hole 502 under the action of the spring and enter the pin hole 506 to complete the fixation. At this time, the support plate 1 forms an extension that can fit the fruit fly adhesive board with a larger area.

[0031] In use, unfold the fruit fly adhesive board and connect the openings of its top and bottom pages directly to the front end of the limiting rod 4. Then, pass the board through the limiting rod 4, the rotating shaft 301, and the fixing rod 3 until the back side contacts the front wall of the support plate 1. Then, move the limiting rod 4 so that it folds upward or downward under the action of the rotating shaft 301, so that the front end of the limiting rod 4 moves and contacts the adhesive surface of the fruit fly adhesive board. When the rotating shaft 301 rotates, the two "T" shapes rub against each other. At this time, the relative positions of the multiple locking strips 303 and the grooves 302 between the two "T" shapes change. Because the rubber locking strips 303 are tough, they will not break the rotating shaft even when compressed. At the same time, the thickness between the locking strips 303 and the grooves 302 is between 0.5-1mm. The interlocking of the two makes the board rotate. After the shaft 301 rotates 90 degrees, the limiting rod 4 moves from being perpendicular to the front wall of the support plate 1 to being parallel to the front wall of the support plate 1, locking the rotating shaft 301 to overcome the influence of gravity and prevent the limiting rod 4 from flipping down. When it is necessary to replace the fruit fly adhesive board, it is only necessary to reset the limiting rod 4. Move the limiting rod 4 to form a rod body perpendicular to the front wall of the support plate 1, together with the fixing rod 3, the rotating shaft 301 and the limiting rod 4. Then, pull out the used fruit fly adhesive board, unfold the new fruit fly adhesive board and align the openings of the upper and lower pages with the limiting rod 4 and insert it until the back touches the front wall of the support plate 1. Then, move the limiting rod 4 to fold it up or down so that the front end moves and touches the adhesive surface of the fruit fly adhesive board.

[0032] Example 2 In Example 1, the oriental fruit fly adhesive board is unfolded, and the structure including the opening and connecting limiting rod 4 is fixed and replaced. However, fruit trees, especially peach trees, are often three to five meters tall with dense branches and leaves, while citrus trees can even reach two to three meters in height. At such heights, with such dense branches, it is difficult to fully unfold the oriental fruit fly adhesive board. Therefore, existing technologies also involve flipping the oriental fruit fly adhesive board in reverse to form a folded shape. In this case, both sides of the oriental fruit fly adhesive board are adhesive, saving space. To solve the problem that Example 1 cannot accommodate the double-folded shape of the oriental fruit fly adhesive board, this example proposes the following technical solution: In this embodiment, hinge 101 divides a single support plate 1 into two sections 103. There are four hinges 101, and each section is connected to a separate block. These blocks are connected to the two sections 103 via four hinges on the top and bottom sides, together forming the support plate 1. In this embodiment, the hinges 101 are highly damped, making rotation of the two sections 103 difficult. However, even after the sections 103 are close together and form a "C" shape, they will not return to their original positions. In this embodiment, the fruit tree is also connected via a connecting clip 2, with the specific process being the same as in Embodiment 1, and therefore will not be described in detail here. The two sections 103 and hinges 101 are prepared as a single flat surface, and then the disassembled and unfolded fruit fly adhesive board is directly attached to the two sections. In block 103, the uppermost plate 103 is inserted, and then the bottom surface of the fruit fly adhesive board is inserted downwards. At this point, the fruit fly adhesive board begins to contact the gaps between the multiple rollers 6 and the front wall of the support plate 1. Since the thickness of the fruit fly adhesive board exceeds the gaps, the adhesive surface of the fruit fly adhesive board will inevitably contact the surface of the rollers 6. However, the surface of the rollers 6 is coated with polytetrafluoroethylene (PTFE). This coating only utilizes the extremely low surface energy of PTFE to prevent the adhesive surface of the fruit fly adhesive board from sticking to it. This is a direct application of existing materials rather than an improvement of the materials. Similarly, the rollers 6, made of alumina ceramic, also utilize the non-corrosion property of alumina ceramic to prevent the rollers 6 from jamming with the fixing rod 3. Again, this is just a direct application of material properties, rather than an improvement in the material itself. The improvement involves the rollers 6 contacting the adhesive surface of the fruit fly adhesive board, causing relative movement and converting the downward friction of the fruit fly adhesive board into rolling friction, assisting its downward movement until it contacts the support strip 7. Finally, installation is completed within the "U"-shaped space of the support strip 7. At this point, the fruit fly adhesive board is held down by multiple rollers 6 on both sides and supported by the support strip 7 at the bottom, completing the vertical installation. When a smaller area is needed for installation, the two plates 103 are grasped and bent towards the connecting rod. Under the rotation of the hinge 101, the two plates 103 begin to move closer together, forming a "C" shape. As the shape of the plates 103 changes, the corresponding fruit fly adhesive board also deforms, and its front adhesive surface becomes a two-sided, one-to-one "C" shape. Due to... The fruit fly adhesive board undergoes a backward bending deformation. When the paper is bent, its internal fiber structure is subjected to external force, resulting in microscopic displacement and deformation. The interaction force between the paper fibers causes them to tend to return to their original arrangement. After deformation under force, an elastic restoring force is generated, thus the fruit fly adhesive board inevitably undergoes a springback deformation. At this time, the multiple rollers 6, together with the fixing rod 3, form a "7"-shaped clamp, locking the fruit fly adhesive board in place, creating a clamping effect. Furthermore, when it is necessary to replace the fruit fly adhesive board, by preparing the two plates 103 and hinge 101 into a single flat surface, grasping the top of the fruit fly adhesive board, and pulling upwards, the sides of the fruit fly adhesive board move out from under the rollers 6.Then repeat the aforementioned steps to insert the fruit fly adhesive board into the gap between the multiple rollers 6 and the front wall of the support plate 1.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A replacement structure for a fruit fly adhesive board, comprising a support plate (1) located behind the fruit fly adhesive board, characterized in that: The support plate (1) is fixedly connected to the rear wall of the connecting rod, and the tail end of the connecting rod is connected to the semi-circular opening connecting clip (2). The side wall of the connecting clip (2) has a screw hole, and the screw hole is penetrated by a screw rod. The part of the screw rod located inside the connecting clip (2) is also rotatably connected to the clip plate. The front wall of the support plate (1) is equipped with a quick-change structure for replacing the sticky board of the oriental fruit fly; Includes at least two fixing rods (3) installed on the front wall of the support plate (1) and located behind the back of the fruit fly pasture, the front end of the fixing rods (3) being movably installed to contact the front adhesive surface of the fruit fly pasture.

2. The replacement structure for the oriental fruit fly adhesive board according to claim 1, characterized in that: There are two fixing rods (3). The two fixing rods (3) are fixedly installed in the center area of ​​the upper and lower ends of the front wall of the support plate (1). The two fixing rods (3) are located on the same vertical line. The front end of the fixing rod (3) is fixedly connected to one end of the rotating shaft (301), and the other end of the rotating shaft is fixedly connected to the tail end of the limiting rod (4). The fixing rod (3), the rotating shaft (301) and the limiting rod (4) together form a rod body perpendicular to the front wall of the support plate (1) for passing through the fruit fly pasting board. The rotating shaft (301) is two overlapping "T" shapes. The overlapping part of the two overlapping "T" shapes is pierced by rivets to form the rotation of the rotating shaft (301).

3. The replacement structure for the oriental fruit fly adhesive board according to claim 2, characterized in that: A locking component is also provided on one side where the two "T" shapes meet. The locking component includes a groove (302) that surrounds the surface where either of the two "T" shapes meets. The locking component also includes a locking strip (303) made of rubber that fits inside the groove (302). The locking strip (303) is installed around the side of the two "T" shapes where the groove (302) is not provided. The rotating shaft (301) rotates and causes the relative positions of the multiple locking strips (303) between the two "T" shapes and the groove to change.

4. The replacement structure for the oriental fruit fly adhesive board according to claim 3, characterized in that: The support plate (1) is also provided with an extension structure, which includes a section (5) cut off from the support plate body at the bottom of the support plate (1). The cut-off part of the bottom of the support plate (1) includes a fixing rod (3), and a plug rod (501) is connected upward at the cut-off part of the bottom of the support plate (1). The plug rod (501) is inserted into a slot (505) opened on the top bottom surface of the support plate (1). The front and rear walls of the slot (505) are provided with multiple through-holes extending to the support plate from top to bottom. (1) The pin hole (506) on the surface, the top of the insert (501) is opened through the through hole (502), the center part of the inner side of the through hole (502) is fixedly connected to the sealing block (503), the sealing block (503) is located on the two side walls at both ends of the through hole (502) respectively, and the tail end of the spring is fixedly connected to the pin (504) which slides in the inner side of the through hole (502). The pin (504) passes through the pin hole (506) to form a snap-fit, which is used to fix the bottom and top of the support plate (1).

5. The replacement structure for the fruit fly adhesive board according to claim 1, characterized in that: The quick-change structure also includes a hinge (101) connected to the middle of the support plate (1). The hinge (101) divides a whole support plate (1) into two parts to form two plates (103). There are four hinges (101). Each of the four hinges (101) is connected to a separate block. A connecting rod is fixedly connected to the back of the block. There are multiple fixing rods (3). Multiple fixing rods (3) are symmetrically installed on both sides of the front wall of the support plate (1). On the side of the multiple fixing rods (3) that are close to each other, that is, the side wall close to the front wall of the support plate (1), a roller (6) is also rotatably connected. There is a gap of 0.1mm-0.2mm between the surface of the roller (6) and the front wall of the support plate (1).

6. The replacement structure for the oriental fruit fly adhesive board according to claim 5, characterized in that: The roller (6) is coated with a polytetrafluoroethylene coating with a thickness of 0.15 mm.

7. The replacement structure for the oriental fruit fly adhesive board according to claim 6, characterized in that: The bottom of the front wall of the plate (103) below the support plate (1) is also fixedly connected to a support strip (7). The support strip (7) is "U" shaped, and the "U" shaped recess of the support strip (7) is used to insert a fruit fly adhesive board.

Images