A special fan for disinfection cabinet

Abstract

The present invention belongs to the technical field of fans, and in particular, relates to a special fan for a disinfection cabinet, including a fan housing and a driving component, wherein the driving component includes a mounting box arranged above the fan housing, wherein the first synchronous wheel and the second synchronous wheel are rotatably connected inside the mounting box, wherein a retractable belt is arranged between the first synchronous wheel and the second synchronous wheel, wherein the upper end of the mounting box is provided with a motor for driving the first synchronous wheel, and wherein a temperature control and adjustment component is arranged inside the first synchronous wheel. The present invention can automatically adjust the wind speed according to the internal temperature of the disinfection cabinet by arranging the temperature control and adjustment component, and when the temperature is high, the rotation speed of the second synchronous wheel and the fixed blades thereon is increased, the air flow speed in the disinfection cabinet is increased, and the heat dissipation effect on the disinfection cabinet is ensured, and when the temperature is lowered, the expansion liquid is contracted, and the elastic ring plate is contracted under the action of its own elastic force, and the rotation speed of the second synchronous wheel and the fixed blades thereon is reduced, and the energy consumption of the motor is reduced, thereby achieving the effect of energy saving.

Description

Technical Field

[0001] The invention belongs to the technical field of fans, and in particular relates to a special fan for a disinfection cabinet with improved designs of an internal impeller and a fan shell. Background Art

[0002] A fan is a mechanical device that uses rotating blades or other similar devices to move gas (usually air). Its main function is to increase the speed and pressure of the airflow for various applications such as ventilation, cooling, and exhaust.

[0003] A fan is usually provided inside the disinfection cabinet to establish air flow inside the disinfection cabinet to ensure that the disinfectant is evenly distributed on all surfaces. For example, a special fan for a poison cabinet disclosed in a patent document with publication number CN207212782U includes a rotor impeller, a cover plate, a base, an insulating base, a stator wire package, a protective cover, a protective cover base, a negative ion generator, a lead wire, a ground wire, a buckle, and a fan. The negative ion generator is used to achieve the effect of purifying the air and has a good heat dissipation effect.

[0004] However, the above-mentioned special fan for disinfection cabinet usually has the following technical problems when in use:

[0005] The rotation speed of the fan blades cannot be adjusted according to the temperature inside the disinfection cabinet. When the temperature inside the disinfection cabinet is high and the blade rotation speed is slow, the heat dissipation effect of the disinfection cabinet is reduced, causing the internal parts of the disinfection cabinet to be easily overheated and damaged. When the temperature inside the disinfection cabinet is low and the blade rotation speed is fast, unnecessary energy consumption will increase. Summary of the invention

[0006] The purpose of the present invention is to provide a special fan for a disinfection cabinet that automatically adjusts the wind speed according to the internal temperature of the disinfection cabinet in order to achieve energy saving while ensuring the heat dissipation effect of the disinfection cabinet in order to solve the problems raised in the above background technology.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A special fan for a disinfection cabinet comprises a fan housing and a driving assembly, wherein the driving assembly comprises a mounting box arranged above the fan housing, wherein a first synchronous wheel and a second synchronous wheel are rotatably connected inside the mounting box, a retractable belt is arranged between the first synchronous wheel and the second synchronous wheel, a motor for driving the first synchronous wheel is arranged at the upper end of the mounting box, and a temperature control adjustment assembly is arranged inside the first synchronous wheel;

[0009] The temperature control and adjustment component includes an annular temperature control chamber opened inside the first synchronous wheel, a plurality of slide grooves are opened on the peripheral side wall of the first synchronous wheel, and piston blocks are sealed and slidably connected in the plurality of slide grooves, a first spring is provided on the side wall of each piston block, and one end of each first spring away from the piston block is connected to the inner wall of the annular temperature control chamber, an elastic ring plate is provided on the peripheral side of the first synchronous wheel, and each piston block is fixedly connected to the inner wall of the elastic ring plate through a fixing rod, the telescopic belt is sleeved between the elastic ring plate and the second synchronous wheel, and a heat-conducting rod is coaxially fixedly connected to the bottom end of the first synchronous wheel, and a first liquid storage chamber is formed between the annular temperature control chamber and the plurality of piston blocks, and the first liquid storage chamber is filled with expansion liquid.

[0010] Preferably, a rotating rod is coaxially fixedly connected to the lower end of the second synchronous wheel, and a portion of the rotating rod extending into the fan casing is provided with a plurality of fixed blades.

[0011] Preferably, the top end of the heat-conducting rod extends to the inside of the annular temperature control cavity, and the bottom end of the heat-conducting rod extends to the inside of the disinfection cabinet.

[0012] Preferably, a heat insulating layer is provided on the peripheral side wall of the heat conducting rod between the annular temperature control cavity and the disinfection cabinet.

[0013] Preferably, it further comprises a telescopic assembly, the telescopic assembly comprising a centrifugal groove provided inside a plurality of fixed blades, each of the centrifugal grooves being slidably connected to an extension blade, a second spring being provided on the inner wall of each of the centrifugal grooves, each of the extension blades being elastically connected to the inner wall of the centrifugal groove through the second spring, a hydraulic chamber being provided inside the rotating rod, a piston plate being sealingly and slidably connected inside the hydraulic chamber, a plurality of fixed sleeves being provided on the peripheral side wall of the rotating rod, an extension rod being sealingly and slidably connected to the inner wall of each of the fixed sleeves, a portion of each of the extension rods extending outside the fixed sleeve being fixedly connected to a support rod, and each of the support rods being in contact with the inner wall of the fan casing;

[0014] The fan housing is made of deformable material.

[0015] Preferably, each of the fixed sleeves is communicated with the interior of the hydraulic chamber, and a second liquid storage chamber is formed between the hydraulic chamber and the plurality of extension rods, and the second liquid storage chamber is filled with hydraulic oil.

[0016] Preferably, a transmission assembly is provided between the hydraulic chamber and the multiple extended blades, and the transmission assembly includes a transmission rod fixedly connected to the lower end of the piston plate, and the lower end of the transmission rod extends to the part below the rotating rod and is provided with a transmission disk, and the bottom end of the rotating rod is connected to a transmission ring through a telescopic rod, and a plurality of first hinge seats are provided on the peripheral side wall of the transmission ring, and the bottom ends of the multiple extended blades are provided with second hinge seats, and connecting rods are hinged between the first and second hinge seats at corresponding positions, and a plurality of push rods are provided at the upper end of the transmission ring, and the lower end of the second synchronous wheel is hinged to a plurality of force rods through a plurality of third hinge seats, each of the push rods is in contact with the force rod at the corresponding position, and the end of each of the force rods away from the push rod is in contact with the upper end of the transmission disk.

[0017] Preferably, the length of the side of the force-bearing rod close to the support rod is twice the length of the side away from the support rod.

[0018] Compared with the existing technology, the advantages of this special fan for disinfection cabinet are:

[0019] 1. The present invention is provided with a temperature control and adjustment component. When in use, the wind speed can be automatically adjusted according to the internal temperature of the disinfection cabinet. When the temperature is high, the rotation speed of the second synchronous wheel and the fixed blades thereon is increased, the air flow speed in the disinfection cabinet is increased, and the heat dissipation effect of the disinfection cabinet is ensured. When the temperature drops, the expansion liquid contracts, and the elastic ring plate contracts under the action of its own elastic force, which reduces the rotation speed of the second synchronous wheel and the fixed blades thereon, reduces the energy consumption of the motor, and achieves energy-saving effect.

[0020] 2. The present invention sets a telescopic component. When the fixed blade rotates, the extended blade can extend to different degrees under the action of centrifugal force according to the rotation speed of the fixed blade. At the same time, the piston plate moves down at different distances in the hydraulic chamber, so that the extension rod extends from the fixed sleeve and the fan casing is expanded to different degrees. This ensures that the fan can be expanded to provide sufficient airflow, and can be retracted when not in use to save space and reduce bumps and damage to the fan.

[0021] 3. The present invention sets a transmission component. When the extension blade is extended under the action of centrifugal force, the transmission ring can be driven to move upward through the first hinge seat, the second hinge seat and the connecting rod. The support rod on the transmission ring pushes the force-bearing rod upward, so that the force-bearing rod close to the side of the transmission disk squeezes the transmission disk downward, thereby driving the piston plate to move downward in the hydraulic chamber. The downward movement distance of the piston plate varies with the extension distance of the extension blade, thereby ensuring that the force applied by the extension rod's own centrifugal force and the extension blade's centrifugal force on the force-bearing rod is sufficient to overcome the restoring resistance of the fan housing itself, so that the fan housing is always expanded with the extension of the extension plate, avoiding motion interference, and at the same time, there is no need to set up an additional driving source, saving manufacturing costs, reducing costs and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the special fan for the disinfection cabinet provided by the present invention;

[0023] Figure 2 It is a cross-sectional view of the special fan for disinfection cabinet provided by the present invention;

[0024] Figure 3 It is a cross-sectional view of the first synchronous wheel of the special fan for disinfection cabinet provided by the present invention;

[0025] Figure 4 It is a partial structural schematic diagram of the telescopic component in the special fan for disinfection cabinet provided by the present invention;

[0026] Figure 5 It is a cross-sectional view of the telescopic component of the special fan for disinfection cabinet provided by the present invention;

[0027] Figure 6 yes Figure 5 The enlarged view of point A in the middle;

[0028] Figure 7 yes Figure 5 Enlarged view of point B in the middle.

[0029] In the figure, 1. fan casing; 2. installation box; 21. first synchronous wheel; 22. second synchronous wheel; 23. telescopic belt; 24. motor; 25. fixed blade; 26. rotating rod; 3. annular temperature control chamber; 31. slide groove; 32. piston block; 33. first spring; 34. elastic ring plate; 35. heat conducting rod; 4. centrifugal groove; 41. extension blade; 42. second spring; 43. hydraulic chamber; 44. piston plate; 45. fixed sleeve; 46. extension rod; 47. support rod; 5. transmission rod; 51. transmission plate; 52. transmission ring; 53. first hinge seat; 54. second hinge seat; 55. connecting rod; 56. push rod; 57. force-bearing rod. DETAILED DESCRIPTION

[0030] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0031] Embodiment 1:

[0032] Reference Figures 1 to 3 A fan dedicated to a disinfection cabinet comprises a fan housing 1 and a driving assembly, wherein the driving assembly comprises a mounting box 2 arranged above the fan housing 1, wherein a first synchronous wheel 21 and a second synchronous wheel 22 are rotatably connected inside the mounting box 2, a retractable belt 23 is arranged between the first synchronous wheel 21 and the second synchronous wheel 22, a motor 24 for driving the first synchronous wheel 21 is arranged at the upper end of the mounting box 2, and a temperature control adjustment assembly is arranged inside the first synchronous wheel 21;

[0033] The temperature control and adjustment component includes an annular temperature control chamber 3 opened inside the first synchronous wheel 21, a plurality of slide grooves 31 are opened on the peripheral side wall of the first synchronous wheel 21, and piston blocks 32 are sealed and slidably connected in the plurality of slide grooves 31, a first spring 33 is provided on the side wall of each piston block 32, and one end of each first spring 33 away from the piston block 32 is connected to the inner wall of the annular temperature control chamber 3, an elastic ring plate 34 is provided on the peripheral side of the first synchronous wheel 21, and each piston block 32 is fixedly connected to the inner wall of the elastic ring plate 34 through a fixing rod, the telescopic belt 23 is sleeved between the elastic ring plate 34 and the second synchronous wheel 22, and a heat-conducting rod 35 is coaxially fixedly connected to the bottom end of the first synchronous wheel 21, and a first liquid storage chamber is formed between the annular temperature control chamber 3 and the plurality of piston blocks 32, and the first liquid storage chamber is filled with expansion liquid.

[0034] Among them, the lower end of the second synchronous wheel 22 is coaxially fixedly connected with a rotating rod 26, and the part of the rotating rod 26 extending into the fan housing 1 is provided with a plurality of fixed blades 25. Therefore, when the motor 24 drives the first synchronous wheel 21 to rotate, the second synchronous wheel 22 can drive the rotating rod 26 and the fixed blades 25 to rotate, thereby dissipating the heat inside the disinfection cabinet.

[0035] The expansion fluid is mercury or kerosene. Due to the thermal expansion and contraction characteristics of mercury and kerosene, when the temperature in the disinfection cabinet changes, the expansion fluid expands to different degrees due to the heat, further driving the piston block 32 to slide outward to different degrees.

[0036] Among them, the top end of the heat-conducting rod 35 extends to the inside of the annular temperature control cavity 3, and the bottom end of the heat-conducting rod 35 extends to the inside of the disinfection cabinet. Therefore, the temperature inside the disinfection cabinet can be transferred to the annular temperature control cavity 3 through the heat-conducting rod 35 to heat the expansion liquid in the annular temperature control cavity 3.

[0037] Among them, a heat insulation layer is provided on the peripheral side wall of the heat-conducting rod 35 between the annular temperature control cavity 3 and the disinfection cabinet. The heat insulation layer can greatly reduce the heat loss of the heat-conducting rod 35 when transferring heat, thereby ensuring the thermal expansion and contraction of the expansion fluid.

[0038] In view of the problem that the rotation speed of the fan blades cannot be adjusted according to the temperature inside the disinfection cabinet in the prior art, when the temperature inside the disinfection cabinet is high and the blade rotation speed is slow, the heat dissipation effect of the disinfection cabinet is reduced, resulting in the internal parts of the disinfection cabinet being easily overheated and damaged, and when the temperature inside the disinfection cabinet is low and the blade rotation speed is fast, unnecessary energy consumption will be increased. The present embodiment is provided with a temperature control adjustment mechanism, which can automatically adjust the wind speed according to the internal temperature of the disinfection cabinet when in use. When the temperature is high, the expansion fluid expands, driving the piston block 32 in the slide groove 31 to slide toward the outside, and then the elastic ring plate 34 is propped up by a plurality of fixing rods, so that the elastic ring plate The diameter of 34 increases, so that when the elastic ring plate 34 rotates the same number of times, the telescopic belt 23 moves a larger distance, so that the telescopic belt 23 drives the second synchronous wheel 22 to rotate faster, the rotation speed of the second synchronous wheel 22 and the fixed blades 25 thereon is increased, the air flow speed in the disinfection cabinet is increased, and the heat dissipation effect of the disinfection cabinet is ensured. After the temperature drops, the expansion liquid shrinks, and the elastic ring plate 34 shrinks under the action of its own elastic force, and the diameter decreases, driving the first synchronous wheel 21 to shrink, reducing the rotation speed of the second synchronous wheel 22 and the fixed blades 25 thereon, reducing the energy consumption of the motor 24, and achieving energy-saving effect.

[0039] Embodiment 2:

[0040] Reference Figures 4 to 7 , which is different from the first embodiment, the present embodiment adds a telescopic component on the basis of the first embodiment, which is used to shrink when not in use to save space and reduce the damage to the fan;

[0041] The telescopic assembly includes a centrifugal groove 4 opened inside a plurality of fixed blades 25, each centrifugal groove 4 is slidably connected with an extension blade 41, a second spring 42 is provided on the inner wall of each centrifugal groove 4, each extension blade 41 is elastically connected to the inner wall of the centrifugal groove 4 through the second spring 42, a hydraulic chamber 43 is opened inside the rotating rod 26, a piston plate 44 is sealed and slidably connected inside the hydraulic chamber 43, a plurality of fixed sleeves 45 are provided on the peripheral side wall of the rotating rod 26, an extension rod 46 is sealed and slidably connected to the inner wall of each fixed sleeve 45, and a portion of each extension rod 46 extending outside the fixed sleeve 45 is fixedly connected with a support rod 47, and each support rod 47 is in contact with the inner wall of the fan housing 1;

[0042] The fan housing 1 is made of deformable material.

[0043] Among them, each fixed sleeve 45 is connected to the inside of the hydraulic chamber 43, and a second liquid storage chamber is formed between the hydraulic chamber 43 and the multiple extension rods 46. The second liquid storage chamber is filled with hydraulic oil. Due to the difficult-to-compress property of hydraulic oil, the piston plate 44 moves downward in the hydraulic chamber 43, and when the hydraulic oil is squeezed into the fixed sleeve 45, the extension rod 46 can be extended to support the fan casing 1 well.

[0044] Among them, the fan housing 1 is made of deformable material, so that the fan housing 1 has a certain elasticity and can restore its original shape after the external force is removed. Therefore, when the fan housing 1 restores its initial shape, it can drive the piston plate 44 to move back to its initial position, which is convenient for flexible adjustment of the position of the piston plate 44 to ensure the expansion and contraction of the fan housing 1.

[0045] In view of the problem that the fan dedicated to the disinfection cabinet in the prior art is often fixed and cannot be deformed, resulting in the fan being unable to become larger when the temperature of the disinfection cabinet is high, and thus unable to provide sufficient airflow for heat dissipation, and the fan being unable to become smaller to save space when the temperature of the disinfection cabinet is lowered or even stops working, the present embodiment provides a telescopic component. When the fixed blade 25 rotates, the extension blade 41 can be extended to different degrees under the action of centrifugal force according to the rotation speed of the fixed blade 25, and at the same time, the piston plate 44 moves down at different distances in the hydraulic chamber 43, so that the extension rod 46 is extended from the fixed sleeve 45. The fan casing 1 is expanded to a different extent. When the fixed blade 25 rotates at a faster speed, the centrifugal force is greater, so that the extended blade 41 extends to a greater extent. When the piston plate 44 moves downward, the extension rod 46 extends more from the fixed sleeve 45, and the fan casing 1 is expanded to a greater extent. When the fixed blade 25 rotates at a slower speed or even stops working, the extended blade 41 retracts under the elastic force of the second spring 42, and the fan casing 1 contracts to a minimum, ensuring that the fan can be expanded to provide sufficient airflow while being able to be retracted when not in use to save space and reduce bumps and damage to the fan.

[0046] A transmission assembly is provided between the hydraulic chamber 43 and the multiple extended blades 41, and the transmission assembly includes a transmission rod 5 fixedly connected to the lower end of the piston plate 44, and a transmission disk 51 is provided at the part of the lower end of the transmission rod 5 extending to the bottom of the rotating rod 26. The bottom end of the rotating rod 26 is connected to a transmission ring 52 through a telescopic rod, and a plurality of first hinge seats 53 are provided on the peripheral side wall of the transmission ring 52. The bottom ends of the multiple extended blades 41 are all provided with second hinge seats 54, and connecting rods 55 are hinged between the first hinge seats 53 and the second hinge seats 54 at corresponding positions. A plurality of push rods 56 are provided at the upper end of the transmission ring 52, and a plurality of force rods 57 are hinged to the lower end of the second synchronous wheel 22 through a plurality of third hinge seats. Each push rod 56 is in conflict with the force rod 57 at the corresponding position, and the end of each force rod 57 away from the push rod 56 is in conflict with the upper end of the transmission disk 51.

[0047] The transmission assembly provided in this embodiment can drive the transmission ring 52 to move upward through the first hinge seat 53, the second hinge seat 54 and the connecting rod 55 when the extension blade 41 is extended under the action of centrifugal force. The push rod 56 on the transmission ring 52 pushes the force-bearing rod 57 upward, so that the force-bearing rod 57 close to the side of the transmission disk 51 squeezes the transmission disk 51 downward, thereby driving the piston plate 44 to move downward in the hydraulic chamber 43. The downward movement distance of the piston plate 44 varies with the extension distance of the extension blade 41, thereby ensuring that the force applied to the force-bearing rod 57 by the centrifugal force of the extension rod 46 and the centrifugal force of the extension blade 41 is sufficient to overcome the restoring resistance of the fan housing 1 itself, so that the fan housing 1 is always unfolded as the extension rod 46 is extended, avoiding motion interference, and at the same time, there is no need to set up an additional driving source, which has the function of reducing costs and saving energy.

[0048] In addition, the length of the side of the force-bearing rod 57 close to the support rod 56 is twice the length of the side away from the support rod 56, and the side of the force-bearing rod 57 away from the support rod 56 drives the transmission plate 51 to move. Therefore, according to the principle of lever, when driving the force-bearing rod 57 to squeeze the transmission plate 51 downward, the force required is only one-half of the original force, thereby ensuring that the centrifugal force can drive the piston plate 44 to move downward, thereby ensuring the deployment of the fan.

[0049] The present invention can be explained by the following operation mode:

[0050] When in use, the first synchronous wheel 21 can be driven to rotate by the motor 24, and the second synchronous wheel 22 can be further driven to rotate by the telescopic belt 23, so that the fixed blade 25 on the bearing of the second synchronous wheel 22 rotates to ensure the air flow speed in the disinfection cabinet;

[0051] The wind speed is automatically adjusted according to the internal temperature of the disinfection cabinet. When the temperature is high, the expansion liquid expands, driving the piston block 32 in the slide groove 31 to slide toward the outside, propping up the elastic ring plate 34, so that the diameter of the elastic ring plate 34 increases, so that when the elastic ring plate 34 rotates the same number of times, the moving range of the telescopic belt 23 increases, so that the telescopic belt 23 drives the second synchronous wheel 22 to rotate faster, increases the rotation speed of the second synchronous wheel 22 and the fixed blades 25 thereon, and increases the air flow speed in the disinfection cabinet. When the temperature drops, the expansion liquid shrinks, and the elastic ring plate 34 shrinks under its own elastic force, and the diameter decreases, driving the first synchronous wheel 21 to shrink, reducing the rotation speed of the second synchronous wheel 22 and the fixed blades 25 thereon, reducing the energy consumption of the motor 24, and achieving energy-saving effect.

[0052] The expansion and contraction of the fan is automatically adjusted according to the rotation speed of the fixed blade 25. When the rotation speed of the fixed blade 25 is faster, the centrifugal force is greater, so that the extension blade 41 is extended to a greater extent, and the transmission ring 52 is driven to move upward through the first hinge seat 53, the second hinge seat 54 and the connecting rod 55. The force-bearing rod 57 is pushed upward by the push rod 56 on the transmission ring 52, so that the force-bearing rod 57 is close to the side of the transmission disk 51 to squeeze the transmission disk 51 downward, thereby driving the piston plate 44 to move downward in the hydraulic chamber 43. The greater the distance, the more the extension rod 46 extends from the fixed sleeve 45, and the greater the expansion of the fan housing 1. When the rotation speed of the fixed blade 25 slows down or even stops working, the extension blade 41 is retracted under the elastic force of the second spring 42, and the fan housing 1 is contracted to the minimum, ensuring that the fan can be deployed to provide sufficient airflow while being able to be contracted when not in use to save space and reduce bumps and damage to the fan.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special fan for a disinfection cabinet, characterized in that: The fan housing (1) comprises a fan housing (1) and a driving assembly, wherein the driving assembly comprises a mounting box (2) arranged above the fan housing (1), wherein a first synchronous wheel (21) and a second synchronous wheel (22) are rotatably connected inside the mounting box (2), a retractable belt (23) is provided between the first synchronous wheel (21) and the second synchronous wheel (22), a motor (24) for driving the first synchronous wheel (21) is provided at the upper end of the mounting box (2), a temperature control adjustment assembly is provided inside the first synchronous wheel (21), a rotating rod (26) is coaxially fixedly connected at the lower end of the second synchronous wheel (22), and a portion of the rotating rod (26) extending into the fan housing (1) is provided with a plurality of fixed blades (25); The temperature control and adjustment component comprises an annular temperature control chamber (3) provided inside the first synchronous wheel (21); a plurality of slide grooves (31) are provided on the peripheral side wall of the first synchronous wheel (21); a piston block (32) is sealingly and slidably connected in each of the plurality of slide grooves (31); a first spring (33) is provided on the side wall of each of the piston blocks (32); an end of each of the first springs (33) away from the piston block (32) is connected to the inner wall of the annular temperature control chamber (3); an elastic ring plate (34) is provided on the peripheral side of the first synchronous wheel (21); each of the piston blocks (32) is fixedly connected to the inner wall of the elastic ring plate (34) via a fixing rod; the telescopic belt (23) is sleeved between the elastic ring plate (34) and the second synchronous wheel (22); a heat conducting rod (35) is coaxially and fixedly connected to the bottom end of the first synchronous wheel (21); a first liquid storage chamber is formed between the annular temperature control chamber (3) and the plurality of piston blocks (32); the first liquid storage chamber is filled with an expansion liquid; A telescopic assembly, the telescopic assembly comprising a centrifugal groove (4) provided inside a plurality of fixed blades (25), each of the centrifugal grooves (4) being slidably connected to an extension blade (41), a second spring (42) being provided on the inner wall of each centrifugal groove (4), each of the extension blades (41) being elastically connected to the inner wall of the centrifugal groove (4) via the second spring (42), a hydraulic chamber (43) being provided inside the rotating rod (26), a piston plate (44) being sealingly slidably connected inside the hydraulic chamber (43), a plurality of fixed sleeves (45) being provided on the peripheral side wall of the rotating rod (26), an extension rod (46) being sealingly slidably connected to the inner wall of each fixed sleeve (45), a portion of each extension rod (46) extending outside the fixed sleeve (45) being fixedly connected to a support rod (47), each of the support rods (47) being in contact with the inner wall of the fan housing (1); The fan housing (1) is made of a deformable material; Each of the fixed sleeves (45) is in communication with the interior of the hydraulic chamber (43); a second liquid storage chamber is formed between the hydraulic chamber (43) and the plurality of extension rods (46); the second liquid storage chamber is filled with hydraulic oil.

2. The fan for disinfection cabinet according to claim 1, characterized in that: The top end of the heat-conducting rod (35) extends to the inside of the annular temperature-control cavity (3), and the bottom end of the heat-conducting rod (35) extends to the inside of the disinfection cabinet.

3. The fan for disinfection cabinet according to claim 1, characterized in that: A heat insulation layer is provided on the peripheral side wall of the heat conducting rod (35) between the annular temperature control chamber (3) and the disinfection cabinet.

4. The fan for disinfection cabinet according to claim 1, characterized in that: A transmission assembly is provided between the hydraulic chamber (43) and the plurality of extension blades (41), the transmission assembly comprising a transmission rod (5) fixedly connected to the lower end of the piston plate (44), a portion of the lower end of the transmission rod (5) extending below the rotating rod (26) being provided with a transmission plate (51), the bottom end of the rotating rod (26) being connected to a transmission ring (52) via a telescopic rod, a plurality of first hinge seats (53) being provided on the peripheral side wall of the transmission ring (52), and a second hinge seat (53) being provided at the bottom end of each of the plurality of extension blades (41). An articulated seat (54), a connecting rod (55) is hinged between the first articulated seat (53) and the second articulated seat (54) at corresponding positions, a plurality of push rods (56) are provided at the upper end of the transmission ring (52), a plurality of force rods (57) are hinged at the lower end of the second synchronous wheel (22) through a plurality of third articulated seats, each of the push rods (56) is in contact with a force rod (57) at a corresponding position, and an end of each of the force rods (57) away from the push rod (56) is in contact with the upper end of the transmission disc (51).

5. The fan for disinfection cabinet according to claim 4, characterized in that: The length of the side of the force bearing rod (57) close to the support rod (56) is twice the length of the side away from the support rod (56).

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