Switch cabinet with line storage device
By setting up card slots, connecting plates and support components in the switch cabinet, the problems of complex circuits and unstable grounding wires in the existing switch cabinet are solved, and clear distribution of the circuits and stable connection of the grounding wires are achieved.
Patent Information
- Application Number
- CN202510598415.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-06-20
AI Technical Summary
The internal circuits of the existing switch cabinet are complex and easy to confuse. The lack of line storage devices leads to insufficient core length and unstable ground wire connections, which can easily lead to line damage.
A switch cabinet with a line storage device is designed. By setting a card slot, a connecting plate and a support assembly in the cabinet body, a groove and a limiting groove are formed to realize the positioning of the wire core and reserve a spare length, and the stable connection of the grounding wire is ensured through conductive metal materials.
It realizes clear distribution of the lines and reserves spare lengths to facilitate line modification and repair, ensures stable connection of the grounding wire, and avoids line damage.
Smart Images
Figure CN120184749A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electrical equipment, and particularly to a switch cabinet with a wire storage device. Background Art
[0002] A switch cabinet is an electrical device. The external wires of the switch cabinet first enter the main control switch inside the cabinet and then enter the sub-control switches. Each branch is set as required, such as meters, automatic controls, motor magnetic switches, various AC contactors, etc.
[0003] The internal wires of the existing switch cabinets on the market are complex and easily confused when wound together. At the same time, there is no space for the staff to leave a spare length for the inserted wire cores when wiring. When the circuit is modified or repaired, the length of the wire cores is not enough for use, and it is very troublesome to replace; At the same time, when the wire cores inside the switch cabinet are connected to the grounding wire of the cabinet body, due to the different connection positions of each wire core, the grounding wires of the wire cores are long and messy, and the connection is unstable, resulting in some wire cores unable to be normally connected to the grounding wire of the cabinet body, which is likely to cause damage to some circuits. Therefore, it is necessary to design a switch cabinet with a wire storage device that is convenient for wiring separation. Summary of the Invention
[0004] The purpose of the present invention is to provide a switch cabinet with a wire storage device to solve the problems raised in the above background art.
[0005] To solve the above technical problems, the present invention provides the following technical solution: A switch cabinet with a wire storage device, including a cabinet body, and a cavity one is opened inside the cabinet body; A number of groups of fixing plates are fixedly connected to the inner walls on both the left and right sides of the cavity one, and a number of groups of wiring terminals are clamped on the upper sides of the fixing plates; Corresponding to each group of fixing plates, a wire groove one is fixedly connected to the inner walls on both the left and right sides of the cavity one. The wire groove one is located below the fixing plate, and a groove cover one is clamped on the wire groove one; A cavity two is formed between the wire groove one and the groove cover one. A number of groups of card slots are opened at the bottom side of the cavity two, and a number of groups of limiting grooves one are evenly opened in the number of groups of card slots. A connecting plate is clamped in the number of groups of card slots; Limiting blocks are fixedly connected to the lower side of the connecting plate corresponding to the limiting grooves one. A strip opening one and a strip opening two are sequentially opened on the connecting plate from bottom to top, and a number of groups of clamping openings are opened below both the strip opening one and the strip opening two; A support assembly one and a support assembly two are respectively slidably connected in the strip opening one and the strip opening two; On the lower left and right sides and the middle of the first wire groove, a set of fixing holes are opened. The fixing holes penetrate through the first wire groove and communicate with the clamping grooves. A threaded hole is opened on the front side of the fixing holes. A second bolt is screwed in the threaded hole. One side of the second bolt close to the fixing hole is fixedly connected with a connecting column, and the connecting column is located in the fixing hole.
[0006] According to the above technical solution, a cabinet door is hinged to the left part of the front side of the cabinet body. A set of second wire grooves are fixedly connected to the right inner wall of the first cavity. The second wire grooves are located behind the first wire grooves. A wire passing opening one is opened on the lower side of the first cavity corresponding to the second wire grooves. A wire passing opening two is opened at the rear part of the right side of the first wire groove. On the side of the second wire groove close to each group of the first wire grooves and corresponding to each group of wire passing openings two, a wire passing opening three is opened. A third wire groove is fixedly connected between the wire passing opening two and the wire passing opening three. A second groove cover and a third groove cover are respectively clamped on the second wire groove and the third wire groove.
[0007] According to the above technical solution, a number of groups of wire passing openings are evenly opened on the upper inner wall of the second cavity. Grooves are formed between adjacent two groups of the connecting plates and between the leftmost group of the connecting plates and the left inner wall of the second cavity.
[0008] According to the above technical solution, both the first support component and the second support component include two groups of limiting plates. On the front side of the front group of the limiting plates, a connecting shaft is fixedly connected. The connecting shaft is movably connected with a roller. A T-shaped clamping block is fixedly connected between the two groups of limiting plates.
[0009] According to the above technical solution, the two groups of limiting plates are respectively located on the front and rear sides of the connecting plate and are in direct contact with the connecting plate. The lower side of the T-shaped clamping block is clamped in the clamping opening.
[0010] According to the above technical solution, limiting grooves two are opened on the left and right inner walls of the clamping opening. On the left and right sides of the lower part of the T-shaped clamping block, convex strips are fixedly connected. The convex strips are matched with the limiting grooves two.
[0011] According to the above technical solution, a number of groups of through holes one are evenly opened on the connecting plate. One group of through holes two are opened on each of the two groups of limiting plates. The through holes one and the through holes two are communicated. A first bolt is sleeved in the through holes one and the through holes two. A grounding wire of the wire core is sleeved on the first bolt.
[0012] According to the above technical solution, the first wire groove, the connecting plate, the limiting plates, the connecting shaft and the roller are all made of insulating materials. On the outer edges of the sides of the through holes two far from the connecting plate, the surfaces of the convex strips, the limiting grooves one, the limiting grooves two and the limiting blocks, metal materials capable of conducting electricity are inlaid. Metal wires are embedded in the limiting plates, the connecting plates and the first wire grooves. The outer edge of the second perforation away from the connecting plate is electrically connected to the rib through the wire in the limiting plate, and the second limiting groove is electrically connected to the limiting block through the wire in the connecting plate; A first connecting block is fixedly connected to the right part of the lower side of the first wire groove. A contact is fixedly connected to the side of the first connecting block in direct contact with the second wire groove. The contact is electrically connected to the first limiting groove through the wire in the second wire groove; The side of the first connecting block away from the second wire groove is fixedly connected to the grounding wire of the cabinet body.
[0013] According to the above technical solution, a plurality of groups of first air cavities and second air cavities are respectively and evenly formed in the left and right parts of the inner wall of the lower side of the second cavity. The first air cavities and the second air cavities are not communicated. The plurality of groups of first air cavities and second air cavities are respectively located below each group of grooves. A plurality of groups of air holes are evenly formed in the upper sides of the first air cavities and the second air cavities. The air holes penetrate through the inner wall of the second cavity and are communicated with the grooves; Second connecting blocks are fixedly connected to the left and right parts of the lower side of the first wire groove. A third cavity is formed in the second connecting blocks. The third cavity of the left group of second connecting blocks penetrates through the second connecting blocks and is communicated with the first air cavity. The third cavity of the right group of second connecting blocks penetrates through the second connecting blocks and is communicated with the second air cavity.
[0014] According to the above technical solution, ventilation openings are formed in the left and right inner walls of the lower side of the first cavity, and dust-proof nets are fixedly connected to the ventilation openings; A first ventilation plate and a second ventilation plate are respectively fixedly connected to the left and right inner walls of the first cavity. The first ventilation plate and the second ventilation plate are both located above the ventilation openings; A dehumidifier and a drying fan are respectively fixedly connected to the left and right sides of the lower side of the first cavity. The input end of the dehumidifier is located in the first cavity. The output end of the dehumidifier is communicated with the left group of ventilation openings through a pipeline. The input end of the drying fan is communicated with the right group of ventilation openings through a pipeline. The output end of the drying fan is located in the first cavity; The output end of the drying fan is communicated with the first ventilation plate and the third cavity of the right group of second connecting blocks respectively through a pipeline and a three-way valve; The input end of the dehumidifier is communicated with the second ventilation plate and the third cavity of the left group of second connecting blocks respectively through a pipeline and a three-way valve.
[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: in the present invention, by providing a card slot and a connecting plate, a plurality of groups of grooves are formed in the first wire groove, so that the wire cores entering the first wire groove are respectively inserted into the grooves for wiring. By providing a first support assembly, the wiring positions of the inserted wire cores are positioned, so that the wire cores are clearly separated and not messy; By providing a first strip opening and a second strip opening, and a first support assembly and a second support assembly that slide and position on the first strip opening and the second strip opening, a reserved length is provided for the entering wire cores; By providing a first bolt on the first support component, and embedding conductive metal materials on the surfaces of the limit plate, the protruding strip, the first limit groove, the second limit groove, and the limit block, the ground wire connecting to the wire core is connected to the ground wire of the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic top view of the overall front side of the present invention; Figure 2 is a schematic bottom view of the overall front side of the present invention; Figure 3 is a schematic diagram of the second wire groove and the terminal of the present invention; Figure 4 is a schematic diagram of the connecting plate and the first wire groove of the present invention; Figure 5 is of the present invention Figure 4 partial enlarged schematic diagram of area A; Figure 6 is a schematic diagram of the first wire groove of the present invention; Figure 7 is of the present invention Figure 6 partial enlarged schematic diagram of area B; Figure 8 is a schematic front sectional view of the first wire groove of the present invention; Figure 9 is of the present invention Figure 8 partial enlarged schematic diagram of area C; Figure 10 is a schematic diagram of the connecting plate of the present invention; Figure 11 is a schematic diagram of the first support component and the second support component of the present invention; In the figure: 1, cabinet body; 2, cabinet door; 3, first cavity; 4, fixed plate; 5, terminal block; 6, first wire groove; 7, second wire groove; 8, first wire passing port; 9, second wire passing port; 10, third wire passing port; 11, third wire groove; 12, first groove cover; 13, second groove cover; 14, third groove cover; 15, second cavity; 16, card slot; 17, first limiting groove; 18, groove; 19, wire threading port; 20, connecting plate; 21, limiting block; 22, first strip opening; 23, second strip opening; 24, bayonet; 25, second limiting groove; 26, first support assembly; 27, second support assembly; 28, limiting plate; 29, T-shaped clamping block; 30, convex strip; 31, first perforation; 32, second perforation; 33, first bolt; 34, connecting shaft; 35, roller; 36, first connecting block; 37, first air cavity; 38, second connecting block; 39, third cavity; 40, ventilation opening; 41, first ventilation plate; 42, second ventilation plate; 43, drying fan; 44, fixing hole; 45, threaded hole; 46, second bolt; 47, connecting column; 48, second air cavity; 49, dehumidifier; 50, air hole. Detailed implementation manner
[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0018] Please refer to Figure 1-11 , the present invention provides a technical solution: a switch cabinet with a line storage device, including a cabinet body 1, a cabinet door 2 is hinged to the left part of the front side of the cabinet body 1, and a first cavity 3 is opened in the cabinet body 1; A plurality of groups of fixed plates 4 are fixedly connected to the inner walls on the left and right sides of the first cavity 3, and a plurality of groups of terminal blocks 5 are clamped on the upper sides of the fixed plates 4; First wire grooves 6 are fixedly connected to the inner walls on the left and right sides of the first cavity 3 corresponding to each group of fixed plates 4, and the first wire grooves 6 are located below the fixed plates 4; A second wire groove 7 is fixedly connected to the inner wall on the right side of the first cavity 3, and the second wire groove 7 is located behind the first wire groove 6; A first wire passing port 8 is opened in the lower side of the first cavity 3 corresponding to the second wire groove 7, and a second wire passing port 9 is opened in the rear part on the right side of the first wire groove 6; A third wire passing port 10 is opened on the side of the second wire groove 7 close to each group of first wire grooves 6 and corresponding to each group of second wire passing ports 9. A third wire groove 11 is fixedly connected between the second wire passing port 9 and the third wire passing port 10. The first wire groove 6, the second wire groove 7 and the third wire groove 11 are respectively clamped with a first groove cover 12, a second groove cover 13 and a third groove cover 14.
[0019] The wire duct 6 and the cover 12 form a cavity 15. On the upper inner wall of the cavity 15, several groups of wire passing openings 19 are evenly arranged. On the bottom side of the cavity 15, several groups of card slots 16 are arranged, and several groups of limiting grooves 17 are evenly arranged in the several groups of card slots 16. A connecting plate 20 is clamped in the several groups of card slots 16. A groove 18 is formed between two adjacent groups of connecting plates 20 and between the leftmost group of connecting plate 20 and the left inner wall of the cavity 15. Corresponding to the limiting groove 17, a limiting block 21 is fixedly connected to the lower side of the connecting plate 20. A first strip opening 22 and a second strip opening 23 are sequentially arranged on the connecting plate 20 from bottom to top. Several groups of clamping openings 24 are arranged on the lower sides of the first strip opening 22 and the second strip opening 23. Limiting grooves 25 are arranged on the inner walls on the left and right sides of the clamping opening 24. A first support assembly 26 and a second support assembly 27 are respectively slidably connected in the first strip opening 22 and the second strip opening 23. Both the first support assembly 26 and the second support assembly 27 include two limiting plates 28. The two limiting plates 28 are respectively located on the front and rear sides of the connecting plate 20 and are in direct contact with the connecting plate 20. A connecting shaft 34 is fixedly connected to the front side of the front limiting plate 28. A roller 35 is movably connected to the connecting shaft 34. The roller 35 is used to guide the direction of the wire core.
[0020] A T-shaped clamping block 29 is fixedly connected between the two limiting plates 28. The lower side of the T-shaped clamping block 29 is clamped in the clamping opening 24. Convex strips 30 are fixedly connected to the left and right sides of the lower part of the T-shaped clamping block 29. The convex strips 30 are matched with the limiting grooves 25. Several groups of first through holes 31 are evenly arranged on the connecting plate 20. A second through hole 32 is arranged on each of the two limiting plates 28. The first through hole 31 is communicated with the second through hole 32. A first bolt 33 is sleeved in the first through hole 31 and the second through hole 32. A grounding wire of the wire core is sleeved on the first bolt 33. The first bolt 33 fixes the grounding wire of the wire core to the front side of the front limiting plate 28 through a nut. After the T-shaped clamping block 29 is clamped in the clamping opening 24, the limiting plate 28 and the connecting plate 20 are limited and fixed through the first bolt 33.
[0021] The wire duct 6, the connecting plate 20, the limiting plate 28, the connecting shaft 34 and the roller 35 are all made of insulating materials. Conductive metal materials are inlaid on the outer edges of the second through holes 32 far away from the connecting plate 20, the convex strips 30, the limiting grooves 17, the limiting grooves 25 and the surfaces of the limiting blocks 21. Metal wires are embedded in the limiting plates 28, the connecting plates 20 and the wire ducts 6. The outer edge of the second through hole 32 far away from the connecting plate 20 is electrically connected to the convex strip 30 through the metal wire in the limiting plate 28. The limiting groove 25 is electrically connected to the limiting block 21 through the metal wire in the connecting plate 20. On the lower right side of the first wire groove 6, there is a fixedly connected first connecting block 36. On the side of the first connecting block 36 that is in direct contact with the second wire groove 7, there is a fixedly connected contact. The contact is electrically connected to the first limiting groove 17 through the metal wire in the second wire groove 7; On the side of the first connecting block 36 away from the second wire groove 7, there is a fixedly connected grounding wire of the cabinet body 1, so that the grounding wire of the wire core is electrically connected to the grounding wire of the cabinet body 1.
[0022] On the left and right parts of the inner wall of the lower side of the second cavity 15, a number of groups of first air cavities 37 and second air cavities 48 are respectively and evenly formed. The first air cavities 37 and the second air cavities 48 are not connected. The number of groups of first air cavities 37 and second air cavities 48 are respectively located below each group of grooves 18. On the upper sides of the first air cavities 37 and the second air cavities 48, a number of groups of air holes 50 are evenly formed. The air holes 50 penetrate through the inner wall of the second cavity 15 and are connected to the grooves 18; On the left and right parts of the lower side of the first wire groove 6, there are fixedly connected second connecting blocks 38. The second connecting blocks 38 are provided with third cavities 39. The third cavity 39 of the left group of second connecting blocks 38 penetrates through the second connecting block 38 and is connected to the first air cavity 37. The third cavity 39 of the right group of second connecting blocks 38 penetrates through the second connecting block 38 and is connected to the second air cavity 48; On the left and right inner walls of the lower side of the first cavity 3, ventilation openings 40 are formed. Dust-proof nets are fixedly connected to the ventilation openings 40; On the left and right inner walls of the first cavity 3, a first ventilation plate 41 and a second ventilation plate 42 are respectively fixedly connected. The first ventilation plate 41 and the second ventilation plate 42 are both located above the ventilation openings 40; On the left and right sides of the lower side of the first cavity 3, a dehumidifier 49 and a drying fan 43 are respectively fixedly connected. The input end of the dehumidifier 49 is located inside the first cavity 3, and the output end is connected to the left group of ventilation openings 40 through a pipeline. The input end of the drying fan 43 is connected to the right group of ventilation openings 40 through a pipeline, and the output end is located inside the first cavity 3; The output end of the drying fan 43 is connected to the first ventilation plate 41 and the third cavity 39 of the right group of second connecting blocks 38 through pipelines and a three-way valve respectively; The input end of the dehumidifier 49 is connected to the second ventilation plate 42 and the third cavity 39 of the left group of second connecting blocks 38 through pipelines and a three-way valve respectively, so as to perform drying treatment on the inside of the first cavity 3 and the second cavity 15.
[0023] On the left and right parts and the middle part of the lower side of the first wire groove 6, a group of fixing holes 44 are formed. The fixing holes 44 penetrate through the first wire groove 6 and are connected to the clamping grooves 16. On the front side of the fixing holes 44, threaded holes 45 are formed. A second bolt 46 is screwed in the threaded holes 45. On the side of the second bolt 46 close to the fixing holes 44, a connecting column 47 is fixedly connected. The connecting column 47 is located inside the fixing holes 44.
[0024] In this embodiment, the wire cores to be connected are inserted into the second wire groove 7 through the first wire passing port 8. As required, the wire cores to be connected to the terminal blocks 5 on the same fixing plate 4 are bundled, and then sequentially pass through the third wire passing port 10, the third wire groove 11, and the second wire passing port 9 and are inserted into the first wire groove 6; According to the number of wires inserted into the second wire groove 7 of this group, a certain number of connecting plates 20 are snap-connected, so that each group of wire cores are respectively located in a group of grooves 18; Move the first support assembly 26 corresponding to a group of wire cores to the lower part of the terminal block 5 where it needs to be connected and screw in the first bolt 33 for fixation; Then adjust the snap-connection position of the second support assembly 27 so that the second support assembly 27 is located on the left side of the first support assembly 26. Pass the corresponding wire core under the roller 35 of the second support assembly 27, then wind it back from above the roller 35 of the second support assembly 27, and then pass through the lower side of the roller 35 of the first support assembly 26 and vertically pass through the wire passing port 19 to penetrate the second cavity 15 and access the corresponding terminal block 5; In this way, a certain length is reserved for the wire core through the distance between the two groups of the first support assemblies 26 and the second support assembly 27, so as to be used for subsequent circuit modification or when wiring errors occur; After wiring the terminal block 5, the ground wire of the wire core is sleeved on the first bolt 33 of the first support assembly 26 according to the actual situation, and the nut is screwed tightly for fixation.
[0025] Start the drying fan 43. The drying fan 43 dries the air outside the cabinet body 1 and then sucks it into the pipeline. Part of the dry air is blown into the second cavity 15 through the three-way valve and the second air cavity 48 from the air holes 50. The dehumidifier 49 sucks the moisture in the second cavity 15 out through the air holes 50 from the first air cavity 37, so as to replace the air in the second cavity 15, so that the second cavity 15 is in a dry state.
[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A switch cabinet with a line storage device, comprising a cabinet body (1), characterized in that: A cavity (3) is provided in the cabinet (1), and a plurality of sets of fixing plates (4) are fixedly connected to the inner walls on both sides of the cavity (3), and a plurality of sets of connection terminals (5) are clamped on the upper side of the fixing plates (4); The inner walls on the left and right sides of the cavity 1 (3) are fixedly connected with a wire groove 1 (6) corresponding to each set of fixing plates (4), the wire groove 1 (6) is located at the lower side of the fixing plate (4), and the wire groove 1 (6) is clamped with a groove cover 1 (12); The wire slot one (6) and the slot cover one (12) form a cavity two (15), a plurality of groups of slots (16) are provided on the bottom side of the cavity two (15), a plurality of groups of limit slots one (17) are evenly provided in the plurality of groups of slots (16), and a connection plate (20) is clamped in the plurality of groups of slots (16); The lower side of the connecting plate (20) corresponds to the limiting groove 1 (17) and is fixedly connected to the limiting block (21); the connecting plate (20) is provided with a first strip opening (22) and a second strip opening (23) in sequence from bottom to top; and the lower sides of the first strip opening (22) and the second strip opening (23) are both provided with a plurality of groups of latches (24); The strip opening 1 (22) and the strip opening 2 (23) are slidably connected with a support assembly 1 (26) and a support assembly 2 (27) respectively; A group of fixing holes (44) are provided at the left and right parts and the middle of the lower side of the first wire groove (6), the fixing holes (44) penetrate the first wire groove (6) and communicate with the clamping groove (16), a threaded hole (45) is provided at the front side of the fixing hole (44), a second bolt (46) is threadedly connected in the threaded hole (45), a connecting column (47) is fixedly connected to the side of the second bolt (46) close to the fixing hole (44), and the connecting column (47) is located in the fixing hole (44); A groove (18) is formed between the two adjacent groups of connecting plates (20) and the left group of connecting plates (20) and the left inner wall of the second cavity (15); A plurality of groups of air cavities (37) and air cavities (48) are evenly formed on the left and right parts of the lower inner wall of the second cavity (15), the air cavities (37) and the second air cavities (48) are not connected, the plurality of groups of air cavities (37) and the second air cavities (48) are respectively located on the lower side of each group of grooves (18), and a plurality of groups of air holes (50) are evenly formed on the upper sides of the air cavities (37) and the second air cavities (48), the air holes (50) penetrate the inner wall of the second cavity (15) and are connected to the grooves (18); The left and right parts of the lower side of the wire trough 1 (6) are fixedly connected to the connecting block 2 (38), and the connecting block 2 (38) is provided with a cavity 3 (39). The cavity 3 (39) of the connecting block 2 (38) of the left group passes through the connecting block 2 (38) and is connected to the air cavity 1 (37), and the cavity 3 (39) of the connecting block 2 (38) of the right group passes through the connecting block 2 (38) and is connected to the air cavity 2 (48).
2. A switch cabinet with a line storage device according to claim 1, characterized in that: The upper inner wall of the second cavity (15) is evenly provided with a plurality of threading openings (19).
3. The switch cabinet with a line storage device according to claim 1, characterized in that: The inner walls on the left and right sides of the lower side of the cavity 1 (3) are both provided with ventilation holes (40), and the ventilation holes (40) are fixedly connected with dustproof nets; The inner walls on the left and right sides of the cavity one (3) are respectively fixedly connected with a ventilation plate one (41) and a ventilation plate two (42), and the ventilation plate one (41) and the ventilation plate two (42) are both located on the upper side of the ventilation opening (40); A dehumidifier (49) and a drying fan (43) are fixedly connected to the left and right sides of the lower side of the cavity one (3), respectively; the input end of the dehumidifier (49) is located in the cavity one (3); the output end of the dehumidifier (49) is connected to a group of ventilation holes (40) on the left side through a pipeline; the input end of the drying fan (43) is connected to a group of ventilation holes (40) on the right side through a pipeline; and the output end of the drying fan (43) is located in the cavity one (3); The output end of the drying fan (43) is connected to the ventilation plate 1 (41) and the cavity 3 (39) of the right side connection block 2 (38) through a pipeline and a three-way valve; The input end of the dehumidifier (49) is connected to the second ventilation plate (42) and the cavity three (39) of the second connection block (38) of the left side group through a pipeline and a three-way valve.