Screen device with adjustable mesh size

Abstract

The invention relates to a screen mesh device with adjustable mesh size, which comprises warps and dimension lines, the spacing of the dimension lines is adjusted through a spacing adjusting mechanism, the spacing adjusting mechanism comprises a left rotating shaft and a right rotating shaft which are arranged left and right at an interval, and the two ends of the left rotating shaft are provided with a first transmission wheel and a second transmission wheel; a third transmission wheel and a fourth transmission wheel are arranged at the two ends of the right rotating shaft, a front transmission belt is wound on the first transmission wheel and the third transmission wheel, a rear transmission belt is wound on the second transmission wheel and the fourth transmission wheel, the front transmission belt and the rear transmission belt are formed by sequentially connecting a plurality of door-shaped protrusions end to end, and grooves of the door-shaped protrusions form transmission grooves. Each transmission wheel is provided with transmission teeth which are increased or decreased according to needs and used for being matched with the corresponding transmission grooves, and door-shaped clamping sleeves used for being matched with the corresponding door-shaped protrusions in a clamped mode are fixed to the two ends of each dimension line respectively. The invention provides the screen device with the adjustable mesh size.

Description

Technical Field

[0001] The invention relates to the field of screening, and in particular to a screen device with adjustable mesh size. Background Art

[0002] The screen is a common screening device used to screen target objects. Its basic structure includes a plurality of warp and dimension lines arranged horizontally and vertically, and adjacent warp and dimension lines form mesh holes.

[0003] Screens are involved in various fields. For example, in the field of insect breeding, insects and loose grains are placed together. When the insects lay eggs, the eggs need to be screened out using a screen. Of course, it is also hoped that the loose grains can be distinguished from the insects using a screen. However, the problem with the existing technology is that the size of the eggs is different from that of the loose grains. Usually, the eggs are smaller than the loose grains. In order to screen the eggs out of the loose grains, a screen with a smaller mesh is usually used to screen the eggs out of the loose grains first; then a screen with a larger mesh is replaced to screen the loose grains out from the insects, so as to achieve the screening of the target object.

[0004] Of course, in some other fields, there will be operating conditions where more than one target object needs to be screened. Since one type of screen in the prior art can only correspond to one size of mesh, if at least two target objects need to be screened, it is usually only possible to replace the screen. Replacing the screen means disassembling and assembling the screen, which is a more troublesome process. Sometimes, the screen is also set in a relatively closed shell, and the disassembly and assembly of the screen will be more troublesome. In addition, the user also needs to configure multiple types of screens, which will also create new requirements for the storage of the screens. Summary of the invention

[0005] The object of the present invention is to provide a screen device with adjustable mesh size.

[0006] In order to solve the above technical problems, the technical solution of a screen device with adjustable mesh size in the present invention is as follows: A screen device with adjustable mesh size comprises a plurality of warp threads arranged at intervals along a front-to-rear direction and a plurality of dimension threads arranged at intervals along a left-to-right direction, meshes are formed between adjacent warp threads and dimension threads, the warp threads are located on the upper side of the dimension threads, and the dimension threads are adjusted in spacing by a spacing adjustment mechanism, the spacing adjustment mechanism comprises a left rotating shaft and a right rotating shaft arranged at intervals along a left-to-right direction, a first transmission wheel and a second transmission wheel are arranged at both ends of the left rotating shaft, a third transmission wheel and a fourth transmission wheel are arranged at both ends of the right rotating shaft, a front transmission belt is wound around the first transmission wheel and the third transmission wheel, a rear transmission belt is wound around the second transmission wheel and the fourth transmission wheel, the front transmission belt and the rear transmission belt are composed of a plurality of gate-shaped protrusions connected end to end in sequence, the grooves of the gate-shaped protrusions constitute transmission grooves, each transmission wheel is provided with transmission teeth for cooperating with corresponding transmission grooves which are increased or decreased as needed, and gate-shaped sleeves for engaging with corresponding gate-shaped protrusions are respectively fixed at both ends of each dimension thread.

[0007] Furthermore, the transmission teeth include fixed teeth fixed on the corresponding transmission wheels at circumferential intervals, and the transmission teeth also include movable teeth arranged on the corresponding transmission wheels at circumferential intervals, each movable tooth is respectively located between two corresponding adjacent fixed teeth, and a guide groove with a guide direction extending radially along the transmission wheel is opened on the transmission wheel. Each movable tooth is respectively guided and moved and assembled in the corresponding guide groove, and a transmission tooth tension spring is arranged between the bottom of the guide groove and the movable tooth. During the reciprocating motion of the movable tooth along the guide groove, the movable tooth has a storage station received in the guide groove and an engagement station extending from the guide groove and cooperating with the groove of the gate-shaped protrusion. The screen device also includes a block used to be inserted between the movable tooth and the bottom of the guide groove along the axial direction of the transmission wheel to limit the movable tooth to the engagement position.

[0008] Furthermore, the front transmission belt and the rear transmission belt are made of plastic.

[0009] Furthermore, the first transmission wheel and / or the third transmission wheel is connected to a driving motor.

[0010] Furthermore, the spacing adjustment mechanism also includes a left-side receiving groove arranged on the lower left side of the first transmission wheel and the second transmission wheel, and a right-side receiving groove arranged on the lower right side of the third transmission wheel and the fourth transmission wheel. The left-side receiving groove is used for vertically loading or unloading multiple door-shaped sleeves, and a first spring is arranged at the bottom of the left-side receiving groove; the right-side receiving groove is used for vertically loading or unloading multiple door-shaped sleeves, and a second spring is arranged at the bottom of the right-side receiving groove.

[0011] Furthermore, a left elastic baffle is provided at the upper end notch of the left storage groove, and the bottom of the left elastic baffle is used to cooperate with the uppermost gate-shaped sleeve in the left storage groove, and the transmission teeth on the first transmission wheel and the second transmission wheel extend into the grooves of the corresponding gate-shaped protrusions, and the gate-shaped protrusions can extend into the corresponding gate-shaped sleeves to carry the gate-shaped sleeves over the left elastic baffle; the gate-shaped protrusions that have not extended into the gate-shaped sleeves cannot carry the gate-shaped sleeves over the left elastic baffle.

[0012] Furthermore, a right-side elastic baffle is provided at the upper end notch of the right-side storage groove, and the bottom of the right-side elastic baffle is used to cooperate with the uppermost gate-shaped sleeve in the right-side storage groove, and the transmission teeth on the third transmission wheel and the fourth transmission wheel extend into the grooves of the corresponding gate-shaped protrusions, and the gate-shaped protrusions can extend into the corresponding gate-shaped sleeves to carry the door-shaped sleeves over the right-side elastic baffle; the gate-shaped protrusions that have not extended into the gate-shaped sleeves cannot carry the door-shaped sleeves over the right-side elastic baffle.

[0013] The beneficial effects of the present invention are as follows: in the present invention, the transmission teeth rotate with the transmission wheel driven by the corresponding transmission wheel, thereby causing the front transmission belt and the rear transmission belt to rotate synchronously. The front transmission belt and the rear transmission belt adopt a special structure. Specifically, the front transmission belt and the rear transmission belt are composed of a plurality of gate-shaped protrusions connected end to end in sequence. The gate-shaped protrusions are inserted into the inner holes of the gate-shaped sleeves to bring out the mesh wires one by one. By changing the number of working transmission teeth on the transmission wheel, that is, the angle between adjacent working transmission teeth, the spacing between adjacent mesh wires can be changed, thereby achieving the purpose of adjusting the mesh size. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a schematic structural diagram of an embodiment of the present invention; Figure 2 yes Figure 1 A in the enlarged view; Figure 3 yes Figure 1 Schematic diagram of the coordination between the meridian and the longitudinal line in the middle top-down direction; Figure 4 yes Figure 3 There is no diagram of the state after the warp line; Figure 5 yes Figure 4 A schematic diagram of the cooperation between the first transmission wheel and the second transmission wheel; Figure 6 yes Figure 5A schematic diagram of the structure of the first transmission wheel; Figure 7 It is a schematic diagram of the matching between the plug and the movable tooth in the present invention; 1. Warp; 2. Dimensional line; 3. Warp fixing rod; 4. Rear transmission belt; 5. Door-type sleeve; 6. Second transmission wheel; 7. Fourth transmission wheel; 8. Left storage slot; 9. Right storage slot; 10. First spring; 11. Second spring; 12. Door-shaped protrusion; 13. Left elastic baffle; 14. Left door-shaped protrusion inlet; 15. Movable tooth; 16. Fixed tooth; 17. Transmission tooth tension spring; 18. First transmission wheel; 19. Third transmission wheel; 20. First motor; 21. Second motor; 22. Front transmission belt; 23. Left rotating shaft; 24. Block; 25. Spring avoidance groove; 26. Guide groove. DETAILED DESCRIPTION

[0015] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0016] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0017] An embodiment of a screen device with adjustable mesh size in the present invention is as follows: Figures 1 to 7 As shown: it includes an upper layer of mesh cables and a lower layer of mesh cables, the upper layer of mesh cables includes a plurality of warp cables 1 spaced apart along the front-to-back direction, the lower layer of mesh cables includes a plurality of dimension cables 2 spaced apart along the left-to-right direction, and adjacent warp cables 1 and dimension cables 2 form a mesh.

[0018] In this embodiment, the spacing between adjacent warps cannot be adjusted, and the screen device includes warp fixing rods 3 arranged on the left and right, the left end of each warp is fixed to the warp fixing rod on the left, and the right end of each warp is fixed to the warp fixing rod on the right.

[0019] The spacing of the longitudinal lines is adjusted by a spacing adjustment mechanism, which includes a left rotating shaft 23 and a right rotating shaft arranged at intervals. The first transmission wheel 18 and the second transmission wheel 19 are arranged at both ends of the left rotating shaft 23, and the third transmission wheel 19 and the fourth transmission wheel 7 are arranged at both ends of the right rotating shaft. The first transmission wheel 18 and the third transmission wheel 19 are connected to driving motors. The driving motor connected to the first transmission wheel is the first motor 20, and the driving motor connected to the third transmission wheel is the second motor 21. The first motor and the second motor work independently, and the first motor can drive the front transmission belt 22 and the rear transmission belt 4 when working. Figure 1 When the viewing angle rotates counterclockwise, the second motor can drive the front and rear drive belts to Figure 1 The view rotates clockwise.

[0020] The front drive belt 22 is wound around the first drive wheel 18 and the third drive wheel 19, and the rear drive belt 4 is wound around the second drive wheel 6 and the fourth drive wheel 7. The front drive belt and the rear drive belt are composed of a plurality of gate-shaped protrusions 12 connected end to end in sequence, that is, the vertical sides of two adjacent gate-shaped protrusions 12 are connected by a connecting edge, and the front drive belt and the rear drive belt are made of plastic.

[0021] The groove of the gate-shaped protrusion constitutes a transmission groove. Each transmission wheel is provided with transmission teeth which are increased or decreased as needed to cooperate with the corresponding transmission groove. Both ends of each fiber line are respectively fixed with gate-shaped sleeves 5 for engaging with the corresponding gate-shaped protrusion. That is to say, each fiber line corresponds to two gate-shaped sleeves 5, and the two gate-shaped sleeves 5 are arranged at an interval front and back, and the two ends of the fiber line are respectively fixed on the corresponding gate-shaped sleeves 5.

[0022] The transmission teeth include fixed teeth 16 fixed on the corresponding transmission wheel at intervals along the circumferential direction, and the transmission teeth also include movable teeth 15 arranged on the corresponding transmission wheel at intervals along the circumferential direction. In this embodiment, four fixed teeth 16 and four movable teeth 15 are arranged on each transmission wheel, and each movable tooth is respectively located between two corresponding adjacent fixed teeth. The circumferential angle between two adjacent fixed teeth in the circumferential direction is 90°, and the circumferential angle between two adjacent movable teeth in the circumferential direction is 90°. A guide groove 26 extending in the radial direction of the transmission wheel is provided on the transmission wheel. Each movable tooth is respectively guided and moved and assembled in the corresponding guide groove 26. A transmission tooth tension spring 17 is arranged between the groove bottom of the guide groove and the movable tooth. During the reciprocating motion of the movable tooth along the guide groove, there is a receiving station for receiving the movable tooth in the guide groove and a bite station for extending from the guide groove and cooperating with the groove of the gate-shaped protrusion. The screen device also includes a plug 24 for inserting between the movable tooth and the groove bottom of the guide groove along the axial direction of the transmission wheel to limit the movable tooth at the bite station.

[0023] The plug block 24 in this embodiment is a wedge-shaped plug block, and a spring avoidance groove 25 for avoiding the transmission tooth tension spring 17 is provided in the middle of the wedge-shaped plug block. When in use, the plug block 24 can be inserted between the corresponding movable tooth and the bottom of the guide groove along the axial direction of the transmission wheel, so that the movable tooth moves radially outward along the corresponding transmission wheel to the engagement position; when the plug block is pulled out, the movable tooth is acted upon by the transmission tooth tension spring 17, and moves radially toward the bottom of the guide groove along the corresponding transmission wheel and is in the storage position.

[0024] The spacing adjustment mechanism also includes a left-side receiving groove 8 arranged on the lower left side of the first transmission wheel and the second transmission wheel, and a right-side receiving groove 9 arranged on the lower right side of the third transmission wheel and the fourth transmission wheel. The left-side receiving groove is used for vertically loading or unloading multiple door-shaped sleeves 5 in sequence, and a first spring 10 is arranged at the bottom of the left-side receiving groove; the right-side receiving groove is used for vertically loading or unloading multiple door-shaped sleeves, and a second spring 11 is arranged at the bottom of the right-side receiving groove 9.

[0025] A left elastic baffle 13 is provided at the upper notch of the left storage slot, and the right side of the left elastic baffle has a left door-shaped protrusion inlet 14 for the corresponding door-shaped protrusion to enter and cooperate with the inner cavity of the uppermost door-shaped ferrule in the left storage slot. The bottom of the left elastic baffle is used to limit the uppermost door-shaped ferrule in the left storage slot. When the door-shaped ferrule 5 is not carried by the corresponding transmission gear, the uppermost door-shaped ferrule is limited by the left elastic baffle 13. The transmission teeth on the first transmission wheel and the second transmission wheel extend into the grooves of the corresponding door-shaped protrusions, and the door-shaped protrusions can extend into the corresponding door-shaped ferrules to carry the door-shaped ferrules over the left elastic baffle; the door-shaped protrusions that are not extended into the door-shaped ferrules with transmission teeth cannot carry the door-shaped ferrules over the left elastic baffle 13.

[0026] A right elastic baffle is provided at the upper end notch of the right storage groove, and the left side of the right elastic plate has a right door-shaped protrusion inlet for the corresponding door-shaped protrusion to enter and cooperate with the inner cavity of the uppermost door-shaped sleeve in the right storage groove, and the bottom of the right elastic baffle is used to limit the uppermost door-shaped sleeve in the right storage groove, and the transmission teeth on the third transmission wheel and the fourth transmission wheel extend into the grooves of the corresponding door-shaped protrusions, and the door-shaped protrusions can extend into the corresponding door-shaped sleeves to carry the door-shaped sleeves over the right elastic baffle; the door-shaped protrusions that have not extended into the door-shaped protrusions with transmission teeth cannot carry the door-shaped sleeves over the right elastic baffle.

[0027] In the present invention, the circumferential angle between two adjacent working transmission teeth determines the spacing between adjacent dimension lines. The working transmission teeth refer to transmission teeth that can cooperate with the transmission groove. In this embodiment, the fixed teeth are working transmission teeth, the movable teeth in the engagement position are working transmission teeth, and the movable teeth in the storage position are not working transmission teeth.

[0028] like Figure 1As shown, in the present embodiment, each transmission wheel has four fixed teeth and four movable teeth in the meshing position as working transmission teeth. When the front transmission belt and the rear transmission belt need to rotate clockwise, the second motor 21 works. For the first transmission wheel and the second transmission wheel, the working transmission teeth rotate with the corresponding transmission wheels. The working transmission teeth and the corresponding gate-shaped protrusions extend into the left receiving groove through the left gate-shaped protrusion inlet 14 and mesh with the uppermost gate-shaped card sleeve, and move upward with the uppermost gate-shaped card sleeve. Since the working transmission teeth extend into the groove of the gate-shaped protrusion, the gate-shaped protrusion is a rigid structure. The uppermost gate-shaped card sleeve in the left receiving groove can bend the left elastic plate, and the right end of the left elastic plate is elastically deformed upward. The uppermost gate-shaped card sleeve in the left receiving groove can pass over the left elastic plate and smoothly come out of the left receiving groove from bottom to top. The spacing between two adjacent working transmission teeth determines the spacing between two adjacent gate-shaped card sleeves. Figure 1 From the perspective of perspective, the door-shaped card sleeve is stuck on the door-shaped protrusion on the upper side, and the door-shaped protrusion plays the role of positioning the door-shaped card sleeve. The distance between the center lines of two adjacent door-shaped protrusions is the distance between two adjacent dimension lines. In this way, all the door-shaped card sleeves in the left storage slot can be ejected in a cycle, thereby realizing the distribution of all dimension lines; when it is necessary to adjust the distance between two adjacent dimension lines, for example, when the distance between two adjacent dimension lines needs to be increased, pull out the corresponding plugs on the third transmission wheel and the fourth transmission wheel, and under the action of the movable tooth tension spring, the movable teeth retract to the storage position where they are not engaged with the door-shaped protrusion. At this time, the fixed teeth on the third transmission wheel and the fourth transmission wheel constitute four working transmission teeth, and the first motor works, driving the front transmission belt and the rear transmission belt to rotate counterclockwise. There are eight working transmission teeth on the first transmission wheel and the second transmission wheel, which can realize the rapid retraction of the door-shaped card sleeve on the left into the left storage slot, while the right storage slot The gate-shaped sleeve in the groove is brought out of the right receiving groove through the four working transmission teeth on the third transmission wheel and the fourth transmission wheel. For the third transmission wheel and the fourth transmission wheel, the circumferential angle of two adjacent working transmission teeth is 90°. There is no gate-shaped protrusion inserted into the working transmission tooth. Even if the gate-shaped protrusion is inserted into the uppermost gate-shaped sleeve in the right receiving groove, the hardness of the gate-shaped protrusion without the working transmission tooth inserted inside is weak, which is not enough to carry the corresponding gate-shaped sleeve to overcome the elastic force of the right elastic plate. Therefore, the uppermost gate-shaped sleeve in the right receiving groove cannot be ejected. Only the gate-shaped protrusion with the working transmission tooth inserted inside has a hardness sufficient to ensure that the corresponding gate-shaped sleeve can overcome the force of the right elastic plate and be ejected smoothly from the right receiving groove, thereby achieving the purpose that two adjacent working transmission teeth can determine the spacing between two adjacent dimension wires, until the dimension wires with wide spacing replace all the dimension wires with narrow spacing.

[0029] In other embodiments of the present invention, the spacing between the warp threads can also be adjusted by a spacing adjustment mechanism.

[0030] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0031] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0032] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A screen device with adjustable mesh size, comprising a plurality of warp threads spaced apart in the front-to-back direction and a plurality of dimension threads spaced apart in the left-to-right direction, wherein adjacent warp threads and dimension threads form mesh holes, characterized in that: The warp lines are located on the upper side of the warp lines, and the warp lines are adjusted in spacing by a spacing adjustment mechanism. The spacing adjustment mechanism includes a left rotating shaft and a right rotating shaft spaced apart on the left and right. The first transmission wheel and the second transmission wheel are provided at both ends of the left rotating shaft, and the third transmission wheel and the fourth transmission wheel are provided at both ends of the right rotating shaft. The front transmission belt is wound around the first transmission wheel and the third transmission wheel, and the rear transmission belt is wound around the second transmission wheel and the fourth transmission wheel. The front transmission belt and the rear transmission belt are composed of a plurality of gate-shaped protrusions connected end to end in sequence, and the grooves of the gate-shaped protrusions constitute transmission grooves. Each transmission wheel is provided with transmission teeth for cooperating with corresponding transmission grooves, which are increased or decreased as needed, and gate-shaped sleeves for engaging with corresponding gate-shaped protrusions are respectively fixed at both ends of each warp line.

2. The screen device according to claim 1, characterized in that: The transmission teeth include fixed teeth fixed on the corresponding transmission wheels at circumferential intervals, and the transmission teeth also include movable teeth arranged on the corresponding transmission wheels at circumferential intervals, each movable tooth is respectively located between two corresponding adjacent fixed teeth, and a guide groove with a guide direction extending radially along the transmission wheel is opened on the transmission wheel. Each movable tooth is respectively guided and moved and assembled in the corresponding guide groove, and a transmission tooth tension spring is arranged between the groove bottom of the guide groove and the movable tooth. During the reciprocating motion of the movable tooth along the guide groove, the movable tooth has a storage station received in the guide groove and an engagement station extending from the guide groove and cooperating with the groove of the gate-shaped protrusion. The screen device also includes a plug used to be inserted between the movable tooth and the groove bottom of the guide groove along the axial direction of the transmission wheel to limit the movable tooth to the engagement position.

3. The screen device according to claim 1, characterized in that: The front transmission belt and the rear transmission belt are made of plastic.

4. The screen device according to claim 1, characterized in that: The first transmission wheel and / or the third transmission wheel are connected with a driving motor.

5. The screen device according to any one of claims 1 to 4, characterized in that: The spacing adjustment mechanism also includes a left-side receiving groove arranged on the lower left side of the first transmission wheel and the second transmission wheel, and a right-side receiving groove arranged on the lower right side of the third transmission wheel and the fourth transmission wheel. The left-side receiving groove is used for vertically loading or unloading multiple door-shaped ferrules, and a first spring is arranged at the bottom of the left-side receiving groove; the right-side receiving groove is used for vertically loading or unloading multiple door-shaped ferrules, and a second spring is arranged at the bottom of the right-side receiving groove.

6. The screen device according to claim 5, characterized in that: A left elastic baffle is provided at the upper notch of the left storage groove, and the bottom of the left elastic baffle is used to cooperate with the uppermost gate-shaped sleeve in the left storage groove, and the transmission teeth on the first transmission wheel and the second transmission wheel extend into the grooves of the corresponding gate-shaped protrusions, and the gate-shaped protrusions can extend into the corresponding gate-shaped sleeves to carry the gate-shaped sleeves over the left elastic baffle; the gate-shaped protrusions that have not extended into the gate-shaped sleeves cannot carry the gate-shaped sleeves over the left elastic baffle.

7. The screen device according to claim 5, characterized in that: A right elastic baffle is provided at the upper notch of the right storage groove, and the bottom of the right elastic baffle is used to cooperate with the uppermost gate-shaped sleeve in the right storage groove, and the transmission teeth on the third transmission wheel and the fourth transmission wheel extend into the grooves of the corresponding gate-shaped protrusions, and the gate-shaped protrusions can extend into the corresponding gate-shaped sleeves to carry the gate-shaped sleeves over the right elastic baffle; the gate-shaped protrusions that have not extended into the gate-shaped sleeves cannot carry the gate-shaped sleeves over the right elastic baffle.

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