screw box

Abstract

The application relates to a screw box which comprises a cam mechanism and a screw assembly, the cam mechanism is fixedly arranged and has a first profile surface and a second profile surface; the screw assembly comprises a rotatably arranged screw disc and a plurality of screw box bodies with upper openings; the plurality of screw box bodies are arranged on the screw disc and are arranged at intervals in the circumferential direction of the screw disc; screw box covers are hingedly connected to the openings of the plurality of screw box bodies; a connecting rod member is arranged between each screw box cover and the cam mechanism; one end of the connecting rod member is connected to the screw box cover, when the other end of the connecting rod member is in follow-up cooperation with the first profile surface, the screw box cover is in an open state; when the other end of the connecting rod member is in follow-up cooperation with the second profile surface, the screw box cover is in a closed state; the screw box cover in the application is only in the open state at the corresponding position, the risk of taking wrong screws is greatly avoided, and the locking efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screw locking, in particular to a screw box. BACKGROUND

[0002] When assembling products, screws are usually used for assembly. In order to meet production needs and production efficiency, more and more industries begin to use screw locking machines to complete screw locking operations.

[0003] In the related art, the openings of the plurality of screw box bodies on the screw locking machine are generally open, which is prone to the risk of taking wrong screws, resulting in low locking efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a screw box which greatly avoids the risk of taking wrong screws and improves locking efficiency.

[0005] A screw box comprises:

[0006] A cam mechanism is fixedly arranged, and the cam mechanism has a first profile surface and a second profile surface;

[0007] A screw assembly comprises a screw disc and a plurality of screw box bodies with upper openings, and the screw disc is rotatably arranged. The plurality of screw box bodies are arranged on the screw disc and are spaced apart along the circumference of the screw disc. Screw box covers are hingedly connected to the openings of the plurality of screw box bodies. A connecting rod member is arranged between each screw box cover and the cam mechanism.

[0008] One end of the connecting rod member is connected to the screw box cover, and the other end of the connecting rod member is in follow-up cooperation with the first profile surface or the second profile surface.

[0009] In one embodiment, the screw box further comprises a limiting cover, the limiting cover is arranged on the periphery of the cam mechanism, a guide groove is formed between the limiting cover and the first profile surface and the second profile surface, and one end of the connecting rod member away from the screw box cover is rotatably connected to the guide groove.

[0010] In one embodiment, the connecting rod member comprises a first connecting rod, a second connecting rod, a third connecting rod, and a connecting piece. The connecting piece is movably connected to the guide groove. One end of the first connecting rod is connected to the connecting piece, and the other end of the first connecting rod is hingedly connected to one end of the second connecting rod and one end of the third connecting rod. One end of the second connecting rod away from the first connecting rod is hingedly connected to the screw box cover, and one end of the third connecting rod away from the first connecting rod is hingedly connected to the screw box body.

[0011] In one embodiment, one end of the first connecting rod close to the connecting piece forms a rotating part, the rotating part is movably connected to the guide groove, and an arc-shaped protrusion is arranged on the outer side wall of the rotating part and abuts against the inner side wall of the first profile surface, the second profile surface, and the limiting cover.

[0012] In one of the embodiments, the first connecting rod is provided with a mounting portion at one end away from the connecting member, and the second connecting rod and the third connecting rod are respectively connected to two ends of the mounting portion.

[0013] In one of the embodiments, the contact surface between the connecting member and the inner side wall of the limiting cover is arc-shaped.

[0014] In one of the embodiments, the first profile surface comprises a first opening section, a highest opening section and a second opening section; and the second profile surface comprises a closed base circle section, the closed base circle section, the first opening section, the highest opening section and the second opening section are sequentially connected to form a circle along the circumferential direction of the cam mechanism.

[0015] In one of the embodiments, the center of the closed base circle section and the center of the highest opening section are on the same straight line.

[0016] In one of the embodiments, the first opening section and the second opening section are symmetrically arranged about the highest opening section.

[0017] In one of the embodiments, the distance between the first opening section and the axial center of the cam mechanism gradually decreases in the counterclockwise direction, and the distance between the second opening section and the axial center of the cam mechanism gradually increases in the counterclockwise direction.

[0018] In one of the embodiments, the cam mechanism has an opening starting position and a closing starting position, the opening starting position is located at the intersection of the first opening section and the closed base circle section, and the closing starting position is located at the intersection of the second opening section and the closed base circle section.

[0019] In one of the embodiments, the rotation center of the screw disc and the axial center of the cam mechanism are on the same straight line.

[0020] In one of the embodiments, the screw assembly further comprises a driving member, and the driving member is in transmission connection with the screw disc.

[0021] In one of the embodiments, the screw box body is detachably connected to the screw disc.

[0022] In one of the embodiments, the screw box body is in the shape of a whole fan.

[0023] In the above scheme, the screw box body and the connecting rod member are driven to rotate by rotating the screw disc, and the connecting rod member is in follow-up cooperation with the first profile surface when the other end of the connecting rod member moves to the first profile surface, so that the screw box cover is in an open state; the other end of the connecting rod member is in follow-up cooperation with the second profile surface when the other end of the connecting rod member moves to the second profile surface, so that the screw box cover is in a closed state; the screw box cover in the application is only in an open state at the corresponding position, which greatly avoids the risk of taking wrong screws and improves the locking efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions serve the purpose of explaining the present application. The accompanying drawings should not be regarded as a limitation of the present application.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort based on these accompanying drawings.

[0026] Figure 1 A structural schematic diagram of a screw box shown in an embodiment of the present application.

[0027] Figure 2 A partial structural schematic diagram of a screw box shown in an embodiment of the present application in a closed state.

[0028] Figure 3 A partial structural schematic diagram of a screw box shown in an embodiment of the present application in an open state.

[0029] Figure 4 A sectional view of a cam mechanism, a first connecting rod and a connecting piece shown in an embodiment of the present application.

[0030] Figure 5 A structural schematic diagram of a rod shown in an embodiment of the present application.

[0031] LIST OF REFERENCES:

[0032] 10, screw box; 100, cam mechanism; 110, first opening section; 120, highest opening section; 130, second opening section; 140, closing base circle section; 200, screw assembly; 210, screw box body; 211, placing groove; 220, screw box cover; 300, connecting rod member; 310, first connecting rod; 311, rotating part; 312, mounting part; 320, second connecting rod; 330, third connecting rod; 340, connecting piece; 350, arc-shaped protrusion; 400, limiting cover; 410, guide groove. DETAILED DESCRIPTION

[0033] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0035] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0036] In the present application, unless specifically defined otherwise, the terms "mount", "connect", "connection", "fixed", "unfixed", and the like are to be construed in their broadest possible sense. For example, they can be fixed connection, detachable connection, or integral; they can be mechanical connection, or electrical connection; they can be direct connection, or indirect connection via an intermediate medium; they can be internal connection of two elements, or interaction between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless specifically defined otherwise, if there is a description such as "on" or "under" or the like between the first feature and the second feature, it can mean that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0038] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0039] In the assembly of products, screws are often used for assembly. In order to meet the production needs and production efficiency, more and more industries begin to use screw locking machines to complete the screw locking operation.

[0040] In the related art, the openings of the plurality of screw box bodies on the screw locking machine are generally open, which is prone to the risk of taking the wrong screw, resulting in low locking efficiency.

[0041] In order to solve the above problems, please refer to Figure 1 The embodiments of the present application relate to a screw box 10 configured on a screw machine.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, the screw box 10 comprises a cam mechanism 100 and a screw assembly 200, the cam mechanism 100 is fixedly arranged. The screw assembly 200 comprises a screw disc and a plurality of screw box bodies 210 with upper openings, the screw disc is rotatably arranged. The plurality of screw box bodies 210 are arranged on the screw disc and are arranged at intervals along the circumference of the screw disc. The openings of the plurality of screw box bodies 210 are all hingedly connected with screw box covers 220, and the screw box covers 220 can be flipped relative to the screw box bodies 210.

[0043] Specifically, the cam mechanism 100 is fixedly arranged on the screw machine. The screw disc is rotatably arranged on the screw machine. It should be noted that the number of screw box bodies 210 is not limited in the application and can be set according to actual use requirements. In the embodiment, the number of screw box bodies 210 is three. In other embodiments, the number of screw box bodies 210 is four, five or more.

[0044] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the cam mechanism 100 has a first profile surface and a second profile surface. Each screw box cover 220 and the cam mechanism 100 are provided with a connecting rod member 300, one end of the connecting rod member 300 is connected with the screw box cover 220. The other end of the connecting rod member 300 forms a follow-up cooperation with the first profile surface or the second profile surface to drive the connecting rod member 300 to act, thereby opening or closing the screw box cover 220.

[0045] When the other end of the connecting rod member 300 forms a follow-up cooperation with the first profile surface, under the action of the connecting rod member 300, the screw box cover 220 is in an open state. When the other end of the connecting rod member 300 forms a follow-up cooperation with the second profile surface, under the action of the connecting rod member 300, the screw box cover 220 is in a closed state.

[0046] By rotating the screw disc, the screw box body 210 and the connecting rod member 300 can be driven to rotate at the same time. Since the cam mechanism 100 is fixedly arranged, when the other end of the connecting rod member 300 moves to the first profile surface, the other end of the connecting rod member 300 forms a follow-up cooperation with the first profile surface, so that the screw box cover 220 is in an open state. When the other end of the connecting rod member 300 moves to the second profile surface, the other end of the connecting rod member 300 forms a follow-up cooperation with the second profile surface, so that the screw box cover 220 is in a closed state. The screw box cover 220 in the application is only in an open state at the corresponding position, which greatly avoids the risk of taking wrong screws and improves the locking efficiency.

[0047] It should be noted that the specific positions of the first profile surface and the second profile surface are not limited in the application and can be set according to actual use requirements. Specifically, the first profile surface can be set at the open position.

[0048] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , according to some embodiments of the application, optionally, the screw box 10 further comprises a limiting cover 400, the limiting cover 400 covers the periphery of the cam mechanism 100, and the limiting cover 400 and the first profile surface and the second profile surface form a guide groove 410, and the end of the connecting rod member 300 away from the screw box cover 220 is rotationally connected to the guide groove 410.

[0049] Specifically, the limiting cover 400 is fixedly arranged on the screw machine. The first profile surface and the second profile surface are formed on the outer side wall of the cam mechanism 100. The limiting cover 400 includes a top and a side wall, and the side wall of the limiting cover 400 is arranged outside the side wall of the cam mechanism 100. The inner side wall of the limiting cover 400 and the outer side wall of the cam mechanism 100 form a guide groove 410.

[0050] By arranging the guide groove 410, the movement of the end of the connecting rod member 300 away from the screw box cover 220 can be limited, preventing the connecting rod member 300 from deviating during movement, and ensuring the stability of the opening and closing of the screw box cover 220.

[0051] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , according to some embodiments of the application, optionally, the connecting rod member 300 comprises a first connecting rod 310, a second connecting rod 320, a third connecting rod 330 and a connecting piece 340, the connecting piece 340 is movably connected to the guide groove 410, and one end of the first connecting rod 310 is connected to the connecting piece 340.

[0052] The other end of the first connecting rod 310 is hingedly connected to one end of the second connecting rod 320 and the third connecting rod 330, respectively, and the second connecting rod 320 and the third connecting rod 330 are rotatable relative to the first connecting rod 310. The end of the second connecting rod 320 away from the first connecting rod 310 is hingedly connected to the screw box cover 220, and the second connecting rod 320 is rotatable relative to the screw box cover 220. The end of the third connecting rod 330 away from the first connecting rod 310 is hingedly connected to the screw box body 210, and the second connecting rod 320 is rotatable relative to the screw box body 210. The first connecting rod 310, the second connecting rod 320 and the third connecting rod 330 cooperate with each other to open or close the screw box cover 220.

[0053] Specifically, the contact surface of the connecting piece 340 with the first profile surface, the second profile surface and the inner side wall of the limiting cover 400 is arc-shaped, which can reduce the friction between the connecting piece 340 and the first profile surface, the second profile surface and the inner side wall of the limiting cover 400, and ensure the efficient operation of the first connecting rod 310.

[0054] Please refer to Figure 2 , Figure 3 and Figure 5 , according to some embodiments of the application, optionally, the first connecting rod 310 is formed with a rotating part 311 near one end of the connecting piece 340, the rotating part 311 is movably connected in the guide groove 410, and an arc-shaped protrusion 350 is arranged on the outer side wall of the rotating part 311 and abuts against the first profile surface, the second profile surface and the inner side wall of the limiting cover 400. Specifically, the arc-shaped protrusion 350 is a circular arc structure.

[0055] By arranging the arc-shaped protrusion 350, the friction between the rotating part 311 and the first profile surface, the second profile surface and the inner side wall of the limiting cover 400 can be reduced, the efficient operation of the first connecting rod 310 is ensured, and the stable operation of the screw box cover 220 during the opening process and the closing process is ensured.

[0056] Please refer to Figure 2 , Figure 3 and Figure 5 , according to some embodiments of the application, optionally, the first connecting rod 310 is provided with a mounting part 312 at one end away from the connecting piece 340, and the second connecting rod 320 and the third connecting rod 330 are respectively connected to the two ends of the mounting part 312 arranged opposite to each other. Specifically, the second connecting rod 320 and the third connecting rod 330 are respectively hinged to the two ends of the mounting part 312 arranged opposite to each other.

[0057] More specifically, a through hole is formed in the mounting part 312, a hinge shaft is arranged in the through hole, and the second connecting rod 320 and the third connecting rod 330 are respectively hinged to the hinge shaft.

[0058] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , according to some embodiments of the application, optionally, the first profile surface comprises a first opening section 110, an opening highest section 120 and a second opening section 130. The second profile surface comprises a closing base circle section 140, and the closing base circle section 140, the first opening section 110, the opening highest section 120 and the second opening section 130 are sequentially connected along the circumference of the cam mechanism 100 to form a circle.

[0059] Specifically, the center of the closing base circle section 140 and the center of the opening highest section 120 are on the same straight line.

[0060] When the other end of the first connecting rod 310 and the connecting piece 340 move to the closing base circle segment 140, the screw box cover 220 is in a closed state. When the other end of the first connecting rod 310 and the connecting piece 340 move to the first opening segment 110 and the second opening segment 130, the screw box cover 220 is in an open state. When the other end of the first connecting rod 310 and the connecting piece 340 move to the opening highest segment 120, the screw box cover 220 is opened to the maximum state.

[0061] Referring to Figure 4 , according to some embodiments of the present application, optionally, the first opening segment 110 and the second opening segment 130 are symmetrically arranged about the opening highest segment 120.

[0062] Specifically, the distance between the first opening segment 110 and the axial center of the cam mechanism 100 gradually decreases in the clockwise direction, and the distance between the second opening segment 130 and the axial center of the cam mechanism 100 gradually increases in the clockwise direction.

[0063] By symmetrically arranging the first opening segment 110 and the second opening segment 130, and gradually decreasing the distance between the first opening segment 110 and the axial center of the cam mechanism 100 in the clockwise direction, and gradually increasing the distance between the second opening segment 130 and the axial center of the cam mechanism 100 in the clockwise direction, the speed of the screw box cover 220 during opening and during closing can be made consistent.

[0064] Referring to Figure 4 , according to some embodiments of the present application, optionally, the cam mechanism 100 has an opening starting position and a closing starting position, the opening starting position is located at the intersection of the first opening segment 110 and the closing base circle segment 140, and the closing starting position is located at the intersection of the second opening segment 130 and the closing base circle segment 140.

[0065] When the other end of the first connecting rod 310 and the connecting piece 340 are located at the opening starting position or the closing starting position, the screw box cover 220 is in a closed state. When the other end of the first connecting rod 310 and the connecting piece 340 move from the opening starting position to the opening highest segment 120 through the first opening segment 110, the screw box cover 220 switches from the closed state to the open state. When the other end of the first connecting rod 310 and the connecting piece 340 move from the opening highest segment 120 to the closing starting position through the second opening segment 130, the screw box cover 220 switches from the open state to the closed state.

[0066] Referring to Figure 1 , Figure 2 and Figure 4According to some embodiments of the present application, optionally, the rotation center of the screw disc is on the same straight line with the axial center of the cam mechanism 100, which can ensure the stability of the rotation of the screw disc, and further ensure the stability of the rotation of the other end of the first connecting rod 310 and the connecting piece 340 relative to the cam mechanism 100.

[0067] Please refer to Figure 1 According to some embodiments of the present application, optionally, the screw assembly 200 further comprises a driving member, which is in driving connection with the screw disc, and is used for driving the screw disc to rotate. Specifically, the driving member is arranged below the screw disc, and the power output end of the driving member is in driving connection with the screw disc. More specifically, the driving member adopts a driving motor.

[0068] Please refer to Figure 1 According to some embodiments of the present application, optionally, the screw box body 210 is detachably connected to the screw disc. Specifically, the screw box body 210 is clamped to the screw disc.

[0069] By arranging the screw box body 210 to be detachably connected to the screw disc, the screw box body 210 can be quickly disassembled and assembled.

[0070] Please refer to Figure 1 and Figure 3 According to some embodiments of the present application, optionally, the screw box body 210 is a whole fan shape. In other embodiments, the screw box body 210 can also be a whole triangular shape, a whole rectangular shape or a whole polygonal structure.

[0071] Please refer to Figure 1 and Figure 3 According to some embodiments of the present application, optionally, the screw box body 210 is provided with a placing groove 211 for placing screws. Specifically, the placing grooves 211 on each screw box body 210 can be of different specifications. The placing grooves 211 on the same screw box body 210 are of the same specification.

[0072] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they should be considered as within the scope of the present application.

[0073] The above-described embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these are within the scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A screw box, characterized in that, The utility model provides a cam mechanism, screw assembly and screw box, and the cam mechanism is fixedly arranged and has a first profile surface and a second profile surface. The screw assembly comprises a screw disc and a plurality of screw box bodies with upper openings, the screw disc is rotatably arranged, the plurality of screw box bodies are arranged on the screw disc and are spaced apart along the circumferential direction of the screw disc, and screw box covers are hingedly connected to the openings of the plurality of screw box bodies. One end of the connecting rod member is connected to the screw box cover, and the other end of the connecting rod member is in a follow-up cooperation with the first profile surface or the second profile surface. When the other end of the connecting rod member moves to the first profile surface, the connecting rod member is in the follow-up cooperation with the first profile surface, and the screw box cover is in an open state; when the other end of the connecting rod member moves to the second profile surface, the connecting rod member is in the follow-up cooperation with the second profile surface, and the screw box cover is in a closed state. The screw box further comprises a limiting cover, the limiting cover is arranged on the periphery of the cam mechanism, a guide groove is formed between the limiting cover and the first profile surface and the second profile surface, and one end of the connecting rod member away from the screw box cover is rotatably connected to the guide groove.

2. The screw box according to claim 1, wherein The connecting rod member comprises a first connecting rod, a second connecting rod, a third connecting rod and a connecting piece, the connecting piece is movably connected to the guide groove, one end of the first connecting rod is connected to the connecting piece, the other end of the first connecting rod is hingedly connected to one end of the second connecting rod and one end of the third connecting rod respectively, one end of the second connecting rod away from the first connecting rod is hingedly connected to the screw box cover, and one end of the third connecting rod away from the first connecting rod is hingedly connected to the screw box body.

3. The screw box according to claim 2, wherein One end of the first connecting rod close to the connecting piece is provided with a rotating part, the rotating part is movably connected to the guide groove, and an arc-shaped protrusion is arranged on the outer side wall of the rotating part and abuts against the inner side wall of the limiting cover, the first profile surface and the second profile surface.

4. The screw box according to claim 3, wherein One end of the first connecting rod away from the connecting piece is provided with a mounting part, and the second connecting rod and the third connecting rod are respectively connected to the two opposite ends of the mounting part.

5. The screw box according to claim 3, wherein The contact surface between the connecting piece and the inner side wall of the limiting cover, the first profile surface and the second profile surface is arc-shaped.

6. The screw box according to claim 3, wherein The first profile surface comprises a first opening section, a highest opening section and a second opening section, the second profile surface comprises a closing base circle section, and the closing base circle section, the first opening section, the highest opening section and the second opening section are sequentially connected along the circumferential direction of the cam mechanism to form a circle.

7. The screw box according to claim 1, wherein The center of the closing base circle section and the center of the highest opening section are on the same straight line.

8. The screw box according to claim 7, wherein The first opening section and the second opening section are symmetrically arranged about the highest opening section.

9. The screw box according to claim 7, wherein The distance between the first opening section and the axial center of the cam mechanism gradually decreases in the counterclockwise direction, and the distance between the second opening section and the axial center of the cam mechanism gradually increases in the counterclockwise direction.

10. The screw box according to claim 7, wherein ​ 11. The screw box according to claim 7, wherein The cam mechanism has an opening starting position and a closing starting position, the opening starting position is located at the intersection of the first opening segment and the closing base circle segment, and the closing starting position is located at the intersection of the second opening segment and the closing base circle segment.

12. The screw box according to any one of claims 1-7, wherein, The rotation center of the screw disc is on the same straight line with the axial center of the cam mechanism.

13. The screw box according to any one of claims 1-7, wherein, The screw assembly further comprises a driving member, which is in transmission connection with the screw disc.

14. The screw box according to any one of claims 1-7, wherein, The screw box body is detachably connected to the screw disc.

15. The screw box of claim 1, wherein, The screw box body is in the shape of a whole fan. The screw box body is in the shape of a whole fan.

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