A drying apparatus with good safety

Abstract

The utility model relates to the technical field of drying equipment, and disclose a drying equipment with good safety, including outer box subassembly, brake switch door subassembly, heat dissipation correlation subassembly and drying box subassembly, drying box subassembly is fixedly installed in the inside outer box subassembly, and the inside area of outer box subassembly is installed with brake switch door subassembly at drying box subassembly top corresponding, and the side of drying box subassembly is assembled with heat dissipation correlation subassembly, the utility model discloses the brake switch door subassembly of installation can avoid the staff mistake to open the door and be high temperature burn, guarantee the safe operation, after temperature drops to the safe range, can automatic stop adsorption, and the sealed door of convenient operator opens, realizes the balance of safety and convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of drying equipment, specifically a drying equipment with good safety. Background Technology

[0002] Drying equipment is widely used in industrial production, food processing, and material handling, serving as a key component for dehydrating and drying materials. Current drying equipment on the market primarily focuses on drying efficiency and energy consumption control, but it still has shortcomings in operational safety and ease of use: some equipment lacks an effective door locking mechanism, and if workers accidentally open the sealed door during the drying process when the internal temperature is high, it can easily cause burns; simultaneously, the heat dissipation systems of existing equipment are mostly fixed-position heat dissipation, making it difficult to achieve uniform cooling inside the equipment, leading to localized overheating that can damage components and shorten the equipment's lifespan; furthermore, the internal structure of the drying chamber in traditional drying equipment is relatively fixed, making it difficult to flexibly adjust the placement space according to the size and quantity of the items to be dried, resulting in poor adaptability. Moreover, the complex operating interfaces of some equipment hinder workers from quickly mastering parameter settings and equipment status monitoring, thus affecting work efficiency to some extent. Therefore, based on the aforementioned shortcomings of existing technologies, developing a drying equipment that combines high safety, ease of operation, and good adaptability is of significant practical importance.

[0003] Application number CN201220335825.5 discloses a drying device, including a main body, a movable door, an upper fan, and a lower fan; the cavity includes an upper part, a middle part, and a lower part; the upper fan is located on the upper part, with the airflow direction upward; the lower fan is located on the lower part, with the airflow direction downward; both the upper and lower parts have air inlets, and the middle part has a return air inlet; the number of upper fans is greater than or equal to one; the number of lower fans is greater than or equal to one. Applying the technical solution of this utility model, this drying device includes an upper fan with the airflow direction upward, a lower fan with the airflow direction downward, an air inlet, and a return air inlet. It has a simple structure and allows hot air to circulate multiple times within the drying device cavity, achieving a multi-layer horizontal synchronous drying effect. The number of upper and lower fans can be selected according to actual needs, making it widely applicable. However, a drawback is the lack of corresponding safety protection, which can easily lead to high-temperature burns. Utility Model Content

[0004] The purpose of this invention is to provide a safe drying device that solves the problem of high-temperature burns caused by the lack of corresponding safety protection.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a drying device with good safety, including an outer casing assembly, a brake switch door assembly, a heat dissipation connection assembly, and a drying chamber assembly. The drying chamber assembly is fixedly installed inside the outer casing assembly. The brake switch door assembly is installed in the inner area of ​​the outer casing assembly corresponding to the top of the drying chamber assembly. The heat dissipation connection assembly is assembled on the side of the drying chamber assembly. The brake switch door assembly includes a thermal pump, a thermal push rod, a double-side plate pivot, a movable hinge, a support rod, a limiting support plate, a strong magnetic suction end one, a magnetic suction plate, a sealing door, a strong magnetic suction end two, a limiting slide rail, a thermal transmission pipe, a temperature sensor, and a cooling fan control line. The thermal pump is fixedly installed on the top of the drying oven assembly. A thermal push rod is coaxially mounted on the power output end of the thermal pump. The end of the thermal push rod away from the thermal pump is rotatably connected to the double-side plate pivot. One end of the double-side plate pivot away from the thermal push rod is fixedly connected to one end of the movable hinge, and the other end of the movable hinge is fixedly connected to one end of the support rod. The portion of the support rod away from the movable hinge slides through a sliding hole at the top of the limiting support plate. A strong magnetic suction end is fixedly installed at the end, and the strong magnetic suction end is detachably attracted to the magnetic suction plate; the magnetic suction plate is fixedly attached to the inner wall of the sealed door; the limiting slide rail is fixedly installed on the top of the drying oven assembly, and a strong magnetic suction end is fixedly installed at the end of the limiting slide rail near the closed end of the sealed door, and the strong magnetic suction end is detachably attracted to the magnetic suction plate; the limiting slide rail and the strong magnetic suction end together constitute the limiting opening and closing guide structure of the sealed door; a temperature sensor is fixedly installed on the outer wall of the tail of the heat-driven pump, and a heat transmission pipe is connected to the fluid port of the tail of the heat-driven pump; the end of the heat transmission pipe away from the heat-driven pump is inserted and communicated with the internal cavity of the drying oven assembly; a cooling fan control line is led out from the side of the temperature sensor.

[0006] Furthermore, the end of the cooling fan control line furthest from the temperature sensor is electrically connected to the control terminal of the heat dissipation-related component, thereby constituting the start-stop linkage control of the heat dissipation-related component by the temperature sensor.

[0007] Furthermore, the outer casing assembly includes a sealed box, an inspection side door, a heat dissipation grille, an outer casing door lock, a power switch, and a touch screen; the left and right side walls of the sealed box are each fitted with an inspection side door via hinges, and each inspection side door has a through-type heat dissipation grille on its outer wall surface.

[0008] Furthermore, a heat dissipation grille is provided on the outer wall of the side door, and an outer door lock, a power switch, and a touch screen are fixedly installed on the front outer wall of the sealed box.

[0009] Furthermore, the heat dissipation-related components include a mounting bracket, a rotary motor, a threaded rod, a threaded hole lifting plate, and a cooling fan; mounting brackets are fixedly installed on the bottom inner wall of the sealed box and on both sides of the inner wall of the two side inspection doors; a rotary motor is fixedly installed at the bottom of the mounting bracket, the output shaft of the rotary motor is connected to one end of the threaded rod, the outer periphery of the middle part of the threaded rod is threadedly engaged with the internal threaded holes opened at both ends of the threaded hole lifting plate, and the threaded hole lifting plate is limited by a guide structure; a cooling fan is fixedly embedded in the middle of the threaded hole lifting plate.

[0010] Furthermore, the cooling fan drives the threaded rod to rotate in both directions via a rotary motor, which in turn causes the threaded hole lifting plate to reciprocate vertically along the axial direction of the threaded rod.

[0011] Furthermore, the drying oven assembly includes a drying oven, heating elements, limiting mounting slots, and ventilation trays; the inner walls on both the left and right sides of the drying oven are provided with several sets of limiting mounting slots spaced apart along the height direction, and each set of limiting mounting slots can be detachably fitted with a limiting ventilation tray; the inner wall of the top of the drying oven is fixedly installed with several heating elements at even intervals along the length direction.

[0012] Furthermore, the drying box is fixedly installed in the center of the sealed box, and a heat dissipation gap is reserved between the outer wall of the drying box and the inner wall of the sealed box.

[0013] This utility model has the following beneficial effects: (1) The present invention provides a safe drying equipment. The installed brake switch door assembly can prevent workers from being burned by high temperature when they accidentally open the door, thus ensuring operational safety. After the temperature drops to a safe range, it can automatically stop adsorption, making it convenient for operators to open the sealed door, thus achieving a balance between safety and convenience.

[0014] (2) The present invention provides a safe drying equipment that can start when the temperature exceeds the limit by installing heat dissipation components. The equipment is cooled evenly by a liftable cooling fan to avoid local high temperature damage to components. In conjunction with the heat dissipation grille of the outer casing, it can accelerate the discharge of hot air, quickly reduce the temperature to a safe range, ensure stable operation of the equipment, and extend the service life of the components.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the outer casing assembly structure of a drying device with good safety according to this utility model; Figure 2 This is a cross-sectional view of the brake switch door assembly of a drying device with good safety according to this utility model; Figure 3 This is a cross-sectional view of the heat dissipation related components of a drying device with good safety according to this utility model; Figure 4 This is a schematic diagram of the drying box component structure of a drying device with good safety according to this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Outer casing assembly; 2. Brake switch door assembly; 3. Heat dissipation related assembly; 4. Drying oven assembly; 101. Sealed box; 102. Inspection side door; 103. Heat dissipation grille; 104. Outer casing door lock; 105. Power switch; 106. Touch screen; 201. Thermal pump; 202. Thermal actuator; 203. Double side plate pivot; 204. Movable hinge; 205. Support rod; 206. Limiting support plate; 207. Strong magnetic suction end. ; 208. Magnetic suction plate; 209. Sealed door; 2010. Strong magnetic suction end two; 2011. Limiting slide rail; 2012. Heat transmission pipe; 2013. Temperature sensor; 2014. Cooling fan control line; 301. Mounting bracket; 302. Rotary motor; 303. Threaded rod; 304. Threaded hole lifting plate; 305. Cooling fan; 401. Drying oven; 402. Heating element; 403. Limiting mounting groove; 405. Ventilation tray. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4As shown, this utility model is a drying device with good safety, including an outer casing assembly 1, a brake switch door assembly 2, a heat dissipation association assembly 3, and a drying box assembly 4. The drying box assembly 4 is fixedly installed inside the outer casing assembly 1. The brake switch door assembly 2 is installed in the area inside the outer casing assembly 1 corresponding to the top of the drying box assembly 4. The heat dissipation association assembly 3 is assembled on the side of the drying box assembly 4. The brake switch door assembly 2 includes a thermal actuation pump 201, a thermal actuation rod 202, a double-side plate pivot 203, a movable hinge 204, a support rod 205, a limiting support plate 206, a strong magnetic suction end one 207, a magnetic suction plate 208, a sealing door 209, a strong magnetic suction end two 2010, a limiting slide rail 2011, a thermal transmission pipe 2012, a temperature sensor 2013, and a cooling fan control line 2014; the thermal actuation pump 201 is fixedly installed on the top of the drying oven assembly 4, and a thermal actuation rod is coaxially mounted on the power output end of the thermal actuation pump 201. The end of the moving rod 202, away from the thermally driven pump 201, is rotatably connected to the double-side plate rotating shaft 203. One end of the double-side plate rotating shaft 203 away from the thermally driven rod 202 is fixedly connected to one end of the movable hinge 204, and the other end of the movable hinge 204 is fixedly connected to one end of the support rod 205. The portion of the support rod 205 away from the movable hinge 204 slides through a sliding hole opened at the top of the limiting support plate 206, and a strong magnetic suction end 207 is fixedly installed at the end of the support rod 205. The strong magnetic suction end 207 and the magnetic suction plate 205 are connected. 8. Detachable adsorption fit; the magnetic suction plate 208 is fixedly attached to the inner wall of the sealing door 209, the limiting slide rail 2011 is fixedly installed on the top of the drying oven assembly 4, and a strong magnetic suction end 2010 is fixedly installed at the end of the limiting slide rail 2011 near the closed end of the sealing door 209. The strong magnetic suction end 2010 and the magnetic suction plate 208 are detachably adsorbed together. The limiting slide rail 2011 and the strong magnetic suction end 2010 together constitute the limiting opening and closing guide structure of the sealing door 209; a temperature sensor is fixedly installed on the outer wall of the tail of the heat-driven pump 201. In 2013, the tail fluid port of the thermally driven pump 201 is connected to a thermal transmission pipe 2012, and the end of the thermal transmission pipe 2012 away from the thermally driven pump 201 is interwoven with the internal cavity of the drying chamber assembly 4; a cooling fan control line 2014 is led out from the side of the temperature sensor 2013, and the sealing door is firmly fixed by the double adsorption effect to prevent the staff from being burned by high temperature when they accidentally open the door, thus ensuring operational safety; after the temperature drops to a safe range, the adsorption can be automatically stopped, making it convenient for the operator to open the sealing door, thus achieving a balance between safety and convenience.

[0020] The end of the cooling fan control line 2014 furthest from the temperature sensor 2013 is electrically connected to the control terminal of the heat dissipation associated component 3, thereby enabling the temperature sensor 2013 to control the start and stop of the heat dissipation associated component 3.

[0021] The outer casing assembly 1 includes a sealed box 101, a maintenance side door 102, a heat dissipation grille 103, an outer casing door lock 104, a power switch 105, and a touch screen 106; the left and right side walls of the sealed box 101 are each fitted with a maintenance side door 102 via hinges, and each maintenance side door 102 has a through heat dissipation grille 103 on its outer wall.

[0022] The outer wall of the side door is provided with a heat dissipation grille 103. The front outer wall of the sealed box 101 is fixedly installed with an outer box door lock 104, a power switch 105 and a touch screen 106, providing protection and installation space for the internal components of the equipment and reducing the impact of the external environment. The maintenance side door facilitates equipment maintenance, and its heat dissipation grille can work with the heat dissipation components to accelerate the exhaust of hot air. The outer box door lock can prevent unauthorized operation and ensure safety.

[0023] The heat dissipation-related component 3 includes a mounting bracket 301, a rotary motor 302, a threaded rod 303, a threaded hole lifting plate 304, and a cooling fan 305. The mounting bracket 301 is fixedly installed on both sides of the bottom inner wall of the sealed box 101 and the inner wall of both sides of the maintenance side doors 102. The rotary motor 302 is fixedly installed at the bottom of the mounting bracket 301. The output shaft of the rotary motor 302 is connected to one end of the threaded rod 303. The outer periphery of the middle part of the threaded rod 303 is threadedly engaged with the internal threaded holes opened at both ends of the threaded hole lifting plate 304, and the threaded hole lifting plate 304 is limited by a guide structure. The cooling fan 305 is fixedly embedded in the middle of the threaded hole lifting plate 304.

[0024] The cooling fan 305 drives the threaded rod 303 to rotate forward and backward via the rotary motor 302, which in turn drives the threaded hole lifting plate 304 to reciprocate vertically along the axis of the threaded rod 303. It can be activated when the temperature exceeds the limit. The liftable cooling fan can evenly dissipate heat inside the equipment, avoiding damage to components due to localized high temperatures. In conjunction with the heat dissipation grille of the outer casing, it can accelerate the discharge of hot air, quickly reduce the temperature to a safe range, ensure stable operation of the equipment, and extend the service life of the components.

[0025] The drying oven assembly 4 includes a drying oven 401, heating elements 402, limiting mounting slots 403, and ventilation trays 405. Several sets of limiting mounting slots 403 are spaced along the height of the inner walls on both the left and right sides of the drying oven 401. A limiting ventilation tray 405 can be detachably mounted in each limiting mounting slot 403. Several heating elements 402 are evenly spaced along the length of the inner wall of the top of the drying oven 401, providing an independent enclosed space for drying items, reducing heat loss, and improving drying efficiency. The internal ventilation tray design facilitates heat penetration and allows for flexible adjustment of its position and quantity to meet the drying needs of different items.

[0026] The drying oven 401 is fixedly installed in the center of the sealed box 101, and a heat dissipation gap is reserved between the outer wall of the drying oven 401 and the inner wall of the sealed box 101, which can further assist the equipment in heat dissipation and maintain the overall temperature stability of the equipment.

[0027] During use, the operator connects the power supply to the equipment via the power switch 105 on the front outer wall of the sealed box 101 in the outer casing assembly 1, and then sets parameters such as drying temperature and drying time via the touch screen 106. After completing the parameter configuration, if it is necessary to open the sealed door 209 to place items, the heat dissipation associated component 3 must first be controlled via the cooling fan control line 2014. If the equipment is not hot initially, it can be operated directly. After the temperature sensor 2013 detects that the temperature inside the drying chamber 401 is within a safe range, the thermal push of the brake door opening and closing assembly 2 is activated. When pump 201 stops pushing, the thermal push rod 202 pulls the double-side plate rotating shaft 203. The double-side plate rotating shaft 203 drives the movable hinge 204. The movable hinge 204 pulls the support rod 205 to move along the sliding hole at the top of the limiting support plate 206, so that the strong magnetic suction end 207 at the end of the support rod 205 separates from the magnetic suction plate 208 on the inner wall of the sealing door 209. At the same time, the magnetic suction plate 208 also disengages from the strong magnetic suction end 2010 at the end of the limiting slide rail 2011. The operator can then open the sealing door 209 along the limiting slide rail 2011. The items to be dried are placed on the ventilated tray 405 inside the drying chamber 401 of the drying chamber assembly 4. The drying chamber 401 provides an independent and enclosed space for drying the items, reducing heat loss. The ventilated tray 405 is designed with ventilation to facilitate heat penetration and is detachable for easy operation. It can be detachably snapped into place by the limiting installation grooves 403 on both sides of the inner wall of the drying chamber 401. The position and number of trays can be flexibly adjusted according to the items. After placement, the sealing door 209 is closed by reversing the operation. Then, the drying operation begins. The equipment controls the heating tube 402 on the top inner wall of the drying chamber 401 in the drying chamber assembly 4 to start according to the parameters set on the touch screen 106. The heating tube 402 generates heat to dry the items. At this time, the brake switch door assembly 2 plays a key safety role: high temperature is generated inside the drying oven 401, and the heat is transferred to the heat-driven pump 201 through the heat transmission pipe 2012. The heat-driven pump 201 drives the heat-driven rod 202, which in turn causes the strong magnetic suction end 207 at the end of the support rod 205 to tightly adhere to the magnetic suction plate 208 on the sealing door 209. At the same time, the strong magnetic suction end 2010 also tightly adheres to the magnetic suction plate 208. The double adsorption effect firmly fixes the sealing door 209, preventing the staff from accidentally opening the sealing door 209 during equipment operation and causing high temperature burns, thus ensuring operational safety.Meanwhile, the temperature sensor 2013 on the outer wall of the tail of the heat-driven pump 201 monitors the temperature inside the drying oven 401 in real time and feeds the data back to the control system. Then, the temperature monitoring and heat dissipation adjustment stage begins. When the drying is complete and the sealing door 209 needs to be opened, the heat dissipation associated component 3 is controlled to work through the cooling fan control line 2014. The rotary motor 302 at the bottom of the mounting bracket 301 in the heat dissipation associated component 3 starts, driving the threaded rod 303 to rotate. The threaded rod 303 is threadedly engaged with the threaded holes at both ends of the threaded hole lifting plate 304, and the threaded hole lifting plate 304 is limited by the guide structure, thereby driving the threaded hole lifting plate 304 to make vertical reciprocating lifting and lowering movements along the axial direction of the threaded rod 303. At the same time, the cooling fan 305 in the middle of the threaded hole lifting plate 304 starts to achieve uniform heat dissipation inside the equipment. The heat dissipation grille 103 on the outer wall of the maintenance side door 102 in the outer box component 1 works with the cooling fan 305 to accelerate the discharge of hot air inside the sealing box 101. When the temperature sensor 2013 detects that the temperature inside the drying oven 401 has dropped to a safe range, the thermal pump 201 stops working, and the strong magnetic suction end 1 207 and strong magnetic suction end 2010 stop adhering and disengage from the magnetic suction plate 208 on the sealing door 209. Finally, the drying process ends and the items are removed. At this time, the sealing door 209 can be opened. The operator opens the sealing door 209 according to the above opening steps, takes out the dried items on the ventilation tray 405, closes the sealing door 209, and turns off the main power of the equipment through the power switch 105. If maintenance or repair is required, the maintenance side door 102 can be opened for operation. At the same time, the drying oven 401 is fixed in the center of the sealing box 101, and a heat dissipation gap is reserved between its outer wall and the inner wall of the sealing box 101 to further assist the equipment in heat dissipation.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A safe drying device, comprising an outer casing assembly (1), a brake switch door assembly (2), a heat dissipation assembly (3), and a drying chamber assembly (4), characterized in that: The drying box assembly (4) is fixedly installed inside the outer box assembly (1). The brake switch door assembly (2) is installed in the area inside the outer box assembly (1) corresponding to the top of the drying box assembly (4). The heat dissipation associated assembly (3) is assembled on the side of the drying box assembly (4). The brake switch door assembly (2) includes a thermal drive pump (201), a thermal drive rod (202), a double-side plate pivot (203), a movable hinge (204), a support rod (205), a limiting support plate (206), a strong magnetic suction end one (207), a magnetic suction plate (208), a sealing door (209), a strong magnetic suction end two (2010), a limiting slide rail (2011), a thermal transmission pipe (2012), a temperature sensor (2013), and a cooling fan control line (2014); the thermal drive pump (201) is fixedly installed on the top of the drying oven assembly (4). A thermal push rod (202) is coaxially mounted on the power output end of the thermal push pump (201). The end of the thermal push rod (202) away from the thermal push pump (201) is rotatably connected to the double-side plate rotating shaft (203). One end of the double-side plate rotating shaft (203) away from the thermal push rod (202) is fixedly connected to one end of the movable hinge (204). The other end of the movable hinge (204) is fixedly connected to one end of the support rod (205). The part of the support rod (205) away from the movable hinge (204) slides through the top of the limiting support plate (206). The sliding hole is filled with a strong magnetic suction end (207) fixedly installed at the end of the support rod (205). The strong magnetic suction end (207) is detachably attracted to the magnetic suction plate (208). The magnetic suction plate (208) is fixedly attached to the inner wall of the sealing door (209). The limiting slide rail (2011) is fixedly installed on the top of the drying oven assembly (4). The end of the limiting slide rail (2011) near the closed end of the sealing door (209) is fixedly installed with a strong magnetic suction end (2010). The strong magnetic suction end (2010) is detachably attracted to the magnetic suction plate (208). The limiting slide rail (2011) and the strong magnetic suction end (2010) together constitute the limiting opening and closing guide structure of the sealing door (209); a temperature sensor (2013) is fixedly installed on the outer wall of the tail of the thermal drive pump (201), and a thermal transmission pipe (2012) is connected to the fluid port of the tail of the thermal drive pump (201). The end of the thermal transmission pipe (2012) away from the thermal drive pump (201) is inserted and connected to the internal cavity of the drying box assembly (4); a cooling fan control line (2014) is led out from the side of the temperature sensor (2013).

2. The drying equipment with good safety according to claim 1, characterized in that: The end of the cooling fan control line (2014) away from the temperature sensor (2013) is electrically connected to the control terminal of the heat dissipation associated component (3), thereby constituting the start-stop linkage control of the heat dissipation associated component (3) by the temperature sensor (2013).

3. The drying equipment with good safety according to claim 1, characterized in that: The outer casing assembly (1) includes a sealed box (101), an inspection side door (102), a heat dissipation grille (103), an outer casing door lock (104), a power switch (105), and a touch screen (106); the left and right side walls of the sealed box (101) are each fitted with an inspection side door (102) via hinges, and each inspection side door (102) has a through heat dissipation grille (103) on its outer wall.

4. The drying equipment with good safety according to claim 3, characterized in that: The outer wall of the side door is provided with a heat dissipation grille (103), and the front outer wall of the sealed box (101) is fixedly installed with an outer box door lock (104), a power switch (105) and a touch screen (106).

5. A drying device with good safety according to claim 3, characterized in that: The heat dissipation associated component (3) includes a mounting bracket (301), a rotary motor (302), a threaded rod (303), a threaded hole lifting plate (304), and a cooling fan (305); the bottom inner wall of the sealed box (101) and the inner walls of the two side inspection doors (102) are all fixedly installed with mounting brackets (301); the bottom of the mounting bracket (301) is fixedly installed with a rotary motor (302), the output shaft of the rotary motor (302) is connected to one end of the threaded rod (303), the outer periphery of the middle part of the threaded rod (303) is threadedly engaged with the internal threaded holes opened at both ends of the threaded hole lifting plate (304), and the threaded hole lifting plate (304) is limited by a guide structure; the middle part of the threaded hole lifting plate (304) is fixedly embedded with a cooling fan (305).

6. The drying equipment with good safety according to claim 5, characterized in that: The cooling fan (305) drives the threaded rod (303) to rotate forward and backward via a rotary motor (302), which in turn drives the threaded hole lifting plate (304) to reciprocate vertically along the axial direction of the threaded rod (303).

7. The drying equipment with good safety according to claim 1, characterized in that: The drying box assembly (4) includes a drying box (401), heating tubes (402), limiting mounting grooves (403), and ventilation trays (405); the inner walls on both the left and right sides of the drying box (401) are provided with several sets of limiting mounting grooves (403) spaced apart along the height direction, and each set of limiting mounting grooves (403) can be detachably fitted with a limiting ventilation tray (405); the inner wall of the top of the drying box (401) is fixedly installed with several heating tubes (402) at even intervals along the length direction.

8. A drying device with good safety according to claim 7, characterized in that: The drying box (401) is fixedly installed in the center of the sealed box (101), and a heat dissipation gap is reserved between the outer wall of the drying box (401) and the inner wall of the sealed box (101).

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