Fuse shield protective coating and preparation process thereof

Abstract

The invention relates to the technical field of power equipment insulation protection, and discloses a fuse protective cover protective coating which comprises a base, a supporting plate is arranged in the middle of the upper side of the base, an adjusting mechanism comprises a support, the support is fixedly connected to the top of the base, a movable seat is arranged at the top of the inner side of the support, and the movable seat is fixedly connected to the top of the base. A gear ring is slidably connected to the bottom of the movable seat, a spraying gun is fixedly connected to the top of the inner side of the gear ring, an L-shaped plate is fixedly connected to the right side of the top of the spraying gun, the bottom end of the L-shaped plate penetrates through the spraying gun, a motor is fixedly connected to the right side of the movable seat, and the output end of the motor penetrates through the movable seat and is fixedly connected with a gear. The movable base drives the spraying gun to move to the position above the fuse protective cover, the motor drives the gear to rotate, the gear ring can drive the spraying gun to conduct circular motion through the L-shaped plate, spraying is conducted on the fuse protective cover from different directions and angles, and therefore spraying of a coating is more uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of insulation protection of electric power equipment, in particular to a fuse shield protective coating and a preparation process thereof. Background Art

[0002] A fuse is an electrical component installed in an electrical circuit to provide overload or short-circuit protection. When an abnormality occurs in the circuit, it can cut off the circuit by melting the fuse due to overheating, preventing electrical equipment from being damaged by overload or short circuit, and avoiding safety accidents.

[0003] In modern power systems, fuses, as key circuit protection devices, bear the important responsibility of overload and short-circuit protection. However, when traditional fuses are used in complex environments, they will be affected by the external environment, causing the fuse to age, affecting its performance, and even causing false operation or refusal to operate. At this time, a fuse cover is needed to provide protection.

[0004] Currently, fuse shields on the market are mainly made of plastic and connected to the fuse through connecting parts, forming a physical protective layer on the outside of the fuse to isolate the fuse from direct erosion by the external environment, thereby achieving the purpose of protecting the fuse. However, when the fuse shield is used outdoors, due to long-term exposure to sunlight, the plastic is eroded by the external environment, and the surface will discolor and crack, resulting in breakage, making the shield seal ineffective, and dust and rainwater directly invade the fuse. The existing technology requires workers to spray a protective coating on the fuse shield to improve the physical properties of the fuse shield and increase its service life. However, the manual spraying method is inefficient and cannot meet the large-scale needs of industry. The existing technology uses a method of fixing the fuse shield and automatically spraying it with an automatic spray gun to improve the automation level of the spraying work. However, when the device is actually used, the angle between the spray gun and the shield is difficult to accurately control, resulting in inconsistent amounts of paint received by different parts of the shield surface, resulting in uneven coating thickness, which cannot meet the needs of users. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a fuse shield protective coating, which solves the problem that different parts of the surface of the fuse shield protective coating receive inconsistent amounts of coating.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fuse shield protective coating, comprising a base, a support plate provided in the middle of the upper side of the base, an adjustment mechanism provided on the top of the base, the adjustment mechanism being used to facilitate spraying the protective coating on the fuse shield from different angles, a fixing mechanism provided on the top of the support plate being used to facilitate fixing the fuse shield, and a lifting mechanism provided in the middle of the top of the base being used to facilitate adjusting the distance between the fuse shield and the spray head;

[0007] The adjusting mechanism includes a bracket, which is fixedly connected to the top of the base, a movable seat is provided at the inner top of the bracket, the bottom of the movable seat is slidably connected to a gear ring, the inner top of the gear ring is fixedly connected to a spray gun, an L-shaped plate is fixedly connected to the top right side of the spray gun, the bottom end of the L-shaped plate passes through the spray gun, a motor is fixedly connected to the right side of the movable seat, the output end of the motor passes through the movable seat and is fixedly connected to a gear, the gear is meshed with the gear ring, and a moving component is provided on the top left side of the bracket.

[0008] Preferably, the fixing mechanism includes a backplate, which is fixedly connected to the left side of the top of the support plate, and a hollow column is provided on the left side of the backplate, the right end of the hollow column passes through the backplate and is fixedly connected to a hollow tube, the right side of the hollow tube is equidistantly connected to the first connecting rod, the right end of the first connecting rod is rotatably connected to a connecting plate, the inner left end of the hollow column is fixedly connected to a telescopic rod, the right end of the telescopic rod passes through the hollow tube and is fixedly connected to a support plate, the outer side of the support plate is rotatably connected to the second connecting rod, and the left end of the second connecting rod is rotatably connected to the connecting plate.

[0009] Preferably, the lifting mechanism includes a second motor, which is fixedly connected to the left side of the base, and a groove is provided in the middle of the top of the base. The output end of the second motor passes through the base and is fixedly connected to a bidirectional threaded rod, and the left and right sides of the outer wall of the bidirectional threaded rod are threadedly connected to sliders, the top of the slider is rotatably connected to the support rod, and the top of the support rod is rotatably connected to the connecting seat, the top of the connecting seat is fixedly connected to the support plate, and guide components are provided on the left and right sides of the top of the base.

[0010] Preferably, the moving assembly includes a first motor, which is fixedly connected to the left top of the bracket. The output end of the first motor passes through the bracket and is fixedly connected to a threaded column, which is threadedly connected to the movable seat.

[0011] Preferably, the guide assembly includes a guide rod, and the two guide rods are fixedly connected to the left and right sides of the top of the base respectively. The left and right sides of the support plate are fixedly connected with guide blocks, and the top of the guide rod passes through the guide block.

[0012] Preferably, the adjustment mechanism further includes a slide groove, which is opened at the front and rear ends of the inner top of the bracket, and the front and rear sides of the movable seat are respectively slidably connected to the corresponding slide groove.

[0013] Preferably, the fixing mechanism further comprises an anti-slip sheet, the anti-slip sheet is fixedly connected to one side of the connecting sheet, and a fuse protective cover is provided on the outer side of the anti-slip sheet.

[0014] Preferably, the fixing mechanism further comprises a fixing plate, which is fixedly connected to the outside of the hollow column, and screws are threadedly connected around the left side of the fixing plate, and the right end of the screw passes through the fixing plate and is threadedly connected to the back plate.

[0015] Preferably, the guide assembly further comprises a limit block, the limit block is threadedly connected to the top of the guide block, and the outer size of the sliding block matches the size of the groove.

[0016] A process for preparing a protective coating for a fuse shield comprises the following steps:

[0017] S1. When spraying the protective coating on the fuse shield, place the fuse shield on the outside of the anti-slip sheet and activate the telescopic rod. The telescopic rod then drives the support sheet to move to the left. The movement of the support sheet causes the second connecting rod to tilt, thereby pushing the connecting sheet to move. The multiple connecting sheets will then expand outward and drive the anti-slip sheet to contact the fuse shield, thus securing the fuse shield from the inside.

[0018] S2. After the fuse shield is fixed, the first motor is started first. The first motor drives the threaded column to rotate. Since the movable seat is limited by the slide groove, the rotation of the first motor drives the movable seat to move. When the movable seat moves, it drives the spray gun to move to the upper side of the fuse shield, thereby accurately controlling the spraying position.

[0019] S3. After the spray position calibration is completed, start the motor. The motor will drive the gear to rotate. Since the gear ring and the gear are meshed with each other, the gear will drive the gear ring to move. When the gear ring moves, it can drive the spray gun to move in a circular motion through the L-shaped plate, so that the protective coating can be sprayed on the fuse shield from different angles and positions.

[0020] S4. When spraying, the second motor will drive the bidirectional threaded rod to rotate, thereby driving the slider to move. When the slider moves, the support rod can push the connecting seat to move vertically in the opposite direction, and the connecting seat will drive the support plate to move. The guiding effect of the guide rod and the guide block can improve the movement accuracy of the support plate. When the support plate moves, the bracket can drive the fuse shield to move, so that the distance between the fuse shield and the spray gun can remain stable.

[0021] The present invention provides a fuse shield protective coating and a preparation process thereof. It has the following beneficial effects:

[0022] 1. The present invention drives the threaded column to rotate through the first motor, drives the movable seat to move, and then drives the spray gun to move above the fuse protective cover. The motor drives the gear to rotate. Because the gear is engaged with the gear ring, the gear ring can drive the spray gun to perform circular motion through the L-shaped plate, spraying the fuse protective cover from different directions and angles, making the coating spray more uniform and meeting the needs of users.

[0023] 2. The present invention drives the support plate to move to the left through the electric telescopic rod. When the support plate moves, the second connecting rod can push the connecting plate to move, and multiple connecting plates will expand outward at the same time, which can drive the anti-slip plate to contact with the fuse protective cover, thereby fixing the fuse protective cover. The fuse protective cover can be fixed internally to improve the integrity of the spraying.

[0024] 3. The present invention drives the bidirectional threaded rod to rotate through the second motor, thereby driving the slider to move. The slider can push the connecting seat to move upward through the support rod, and the connecting seat drives the back plate to move upward through the support plate, so that the distance between the fuse shield and the spray gun will not change significantly, thereby improving the spraying quality of the fuse shield and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 It is a front view of the present invention;

[0027] Figure 3 is a side view of the present invention;

[0028] Figure 4 It is a partial structural breakdown diagram of the present invention;

[0029] Figure 5 It is a partial structural cross-sectional view of the adjustment mechanism of the present invention;

[0030] Figure 6 It is a schematic diagram of the local structure of the present invention;

[0031] Figure 7 It is a partial structural cross-sectional view of the fixing mechanism of the present invention;

[0032] Figure 8 It is a partial structural sectional view of the lifting mechanism of the present invention.

[0033] Among them, 1. base; 2. adjustment mechanism; 21. bracket; 22. movable seat; 23. gear ring; 24. L-shaped plate; 25. spray gun; 26. motor; 27. gear; 28. moving assembly; 281. first motor; 282. threaded column; 29. slide; 3. fixing mechanism; 31. back plate; 32. hollow column; 33. hollow tube; 34. first connecting rod; 35. connecting plate; 36. telescopic rod; 37. support plate; 38. second connecting rod; 39. anti-slip plate; 310. fuse protective cover; 311. fixing plate; 312. screw; 4. lifting mechanism; 41. second motor; 42. groove; 43. two-way threaded rod; 44. slider; 45. support rod; 46. connecting seat; 47. guide assembly; 471. guide rod; 472. guide block; 473. limit block; 5. support plate. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1:

[0036] Reference Figure 1 、 Figure 4 and Figure 5 An embodiment of the present invention provides a protective coating for a fuse shield, comprising a base 1, a support plate 5 provided in the middle of the upper side of the base 1, an adjustment mechanism 2 provided on the top of the base 1, the adjustment mechanism 2 being used to facilitate spraying the protective coating on the fuse shield from different angles, a fixing mechanism 3 provided on the top of the support plate 5, the fixing mechanism 3 being used to facilitate fixing the fuse shield, and a lifting mechanism 4 provided in the middle of the top of the base 1, the lifting mechanism 4 being used to facilitate adjusting the distance between the fuse shield and the spray head;

[0037] The adjusting mechanism 2 includes a bracket 21, which is fixedly connected to the top of the base 1. A movable seat 22 is provided on the inner top of the bracket 21. A gear ring 23 is slidably connected to the bottom of the movable seat 22. An L-shaped plate 24 is fixedly connected to the inner top of the gear ring 23. A spray gun 25 is fixedly connected to the right side of the top of the L-shaped plate 24. The gear ring 23 can drive the spray gun 25 to move through the L-shaped plate 24. The bottom end of the spray gun 25 passes through the L-shaped plate 24. A motor 26 is fixedly connected to the right side of the movable seat 22. The output end of the motor 26 passes through the movable seat 22 and is fixedly connected to a gear 27. The motor 26 drives the gear 27 to rotate. The gear 27 is meshed with the gear ring 23. When the gear 27 rotates, the gear ring 23 will move accordingly, a moving assembly 28 is provided on the left side of the top of the bracket 21, and the moving assembly 28 includes a first motor 281, the first motor 281 is fixedly connected to the left top of the bracket 21, the output end of the first motor 281 passes through the bracket 21 and is fixedly connected to a threaded column 282, the first motor 281 drives the threaded column 282 to rotate, the threaded column 282 is threadedly connected to the movable seat 22, and the rotation of the threaded column 282 drives the movable seat 22 to move, the adjustment mechanism 2 also includes a slide groove 29, the slide groove 29 is opened at the front and rear ends of the inner top of the bracket 21, the front and rear sides of the movable seat 22 are respectively slidably connected to the corresponding slide groove 29, and the slide groove 29 can limit the movement of the movable seat 22;

[0038] Specifically, when using the device, the threaded column 282 is driven by the first motor 281 to start rotating, which can then drive the movable seat 22 to move. The movement of the movable seat 22 can further drive the spray gun 25 to move, so that the spray gun 25 can move above the fuse protective cover 310, and then the motor 26 is started. The motor 26 will drive the gear 27 to rotate. Since the gear 27 is engaged with the gear ring 23, when the gear 27 rotates, the gear ring 23 will rotate accordingly. The rotation of the gear ring 23 can further drive the spray gun 25 to perform a circular motion through the L-shaped plate 24, so that the spray gun 25 can spray the fuse protective cover 310 from multiple different directions and angles, so that the coating spraying is more uniform, which can meet the needs of users.

[0039] Reference Figure 2 、 Figure 6 and Figure 7The fixing mechanism 3 includes a back plate 31, which is fixedly connected to the left side of the top of the support plate 5. A hollow column 32 is provided on the left side of the back plate 31. The right end of the hollow column 32 passes through the back plate 31 and is fixedly connected to a hollow tube 33. The right side of the hollow tube 33 is equidistantly connected to a first connecting rod 34. The right end of the first connecting rod 34 is rotatably connected to a connecting piece 35. The connecting piece 35 can move. The left end of the inner part of the hollow column 32 is fixedly connected to a telescopic rod 36. The right end of the telescopic rod 36 passes through the hollow tube 33 and is fixedly connected. There is a support piece 37, and the telescopic rod 36 can drive the support piece 37 to move. The outer sides of the support piece 37 are rotatably connected to the second connecting rod 38. The left end of the second connecting rod 38 is rotatably connected to the connecting piece 35. The support piece 37 can push the connecting piece 35 to move through the second connecting rod 38. The fixing mechanism 3 also includes an anti-slip piece 39, which is fixedly connected to one side of the connecting piece 35. A fuse protective cover 310 is provided on the outer side of the anti-slip piece 39. The anti-slip piece 39 can fix the fuse protective cover 310 when it contacts the fuse protective cover 310.

[0040] Specifically, before spraying, the fuse guard 310 needs to be fixed. First, the fuse guard 310 is placed on the outside of the anti-slip sheet 39, and then the telescopic rod 36 is started. The telescopic rod 36 will drive the support sheet 37 to move to the left. In the process of moving to the left, the support sheet 37 will exert force on the second connecting rod 38, causing the second connecting rod 38 to tilt, thereby further pushing the connecting piece 35 to move. Multiple connecting pieces 35 will expand outward at the same time, thereby driving the anti-slip sheet 39 to move and make it contact with the fuse guard 310, thereby fixing the fuse guard 310 from the inside and improving the integrity of the spraying.

[0041] Reference Figure 2 、 Figure 3 and Figure 8The lifting mechanism 4 includes a second motor 41, which is fixedly connected to the left side of the base 1. A groove 42 is provided in the middle of the top of the base 1. The output end of the second motor 41 passes through the base 1 and is fixedly connected to a bidirectional threaded rod 43. The second motor 41 drives the bidirectional threaded rod 43 to rotate. The left and right sides of the outer wall of the bidirectional threaded rod 43 are threadedly connected to sliders 44. The rotation of the bidirectional threaded rod 43 drives the slider 44 to move. The top of the slider 44 is rotatably connected to a support rod 45. The top of the support rod 45 is rotatably connected to a connecting seat 46. The slider 44 The connecting seat 46 can be pushed to move by the support rod 45. The top of the connecting seat 46 is fixedly connected to the supporting plate 5. The connecting seat 46 will drive the supporting plate 5 to move upward. Guide assemblies 47 are provided on the left and right sides of the top of the base 1. The guide assembly 47 includes a guide rod 471. The two guide rods 471 are fixedly connected to the left and right sides of the top of the base 1 respectively. The left and right sides of the supporting plate 5 are fixedly connected with guide blocks 472. The top of the guide rod 471 passes through the guide block 472. Through the interaction between the guide block 472 and the guide rod 471, the movement of the supporting plate 5 can be guided.

[0042] Specifically, when spraying, the second motor 41 drives the bidirectional threaded rod 43, and the slider 44 is precisely limited by the groove 42, so the bidirectional threaded rod 43 will drive the slider 44 to move. When the slider 44 moves, the support rod 45 can further push the connecting seat 46 to move upward, and the connecting seat 46 will drive the back plate 31 to move upward through the support plate 5, thereby realizing precise control of the distance between the fuse shield 310 and the spray gun 25, ensuring that the distance between the fuse shield 310 and the spray gun 25 will not change significantly, thereby improving the spraying quality of the device and improving the practicality of the device.

[0043] Reference Figure 2 and Figure 6 The fixing mechanism 3 also includes a fixing plate 311, which is fixedly connected to the outside of the hollow column 32. Screws 312 are threadedly connected to the left side of the fixing plate 311. The right end of the screw 312 passes through the fixing plate 311 and is threadedly connected to the back plate 31. The fixing plate 311 can be removed by removing the screw 312.

[0044] Specifically, by removing the plurality of screws 312 on the left side of the fixing plate 311 , the hollow column 32 can be removed, thereby performing maintenance on the internal equipment.

[0045] Reference Figure 1 、 Figure 3 and Figure 8 The guide assembly 47 further includes a limit block 473 , which is threadedly connected to the top of the guide block 472 . The limit block 473 can limit the movement of the support plate 5 , and the outer size of the slider 44 matches the size of the groove 42 ;

[0046] Specifically, the movement of the support plate 5 is limited by the movement of the limiting block 473 , and the groove 42 can limit the movement of the slider 44 , so that when the bidirectional threaded rod 43 rotates, the slider 44 can move accordingly.

[0047] Example 2:

[0048] A process for preparing a protective coating for a fuse shield comprises the following steps:

[0049] S1. When spraying the protective coating on the fuse shield, place the fuse shield 310 outside the anti-slip sheet 39 and activate the telescopic rod 36. The telescopic rod 36 then drives the support sheet 37 to move to the left. When the support sheet 37 moves, it causes the second connecting rod 38 to tilt, thereby pushing the connecting sheet 35 to move. The multiple connecting sheets 35 will then expand outward and drive the anti-slip sheet 39 to contact the fuse shield 310, thereby fixing the fuse shield 310 from the inside.

[0050] S2. After the fuse shield 310 is fixed, the first motor 281 is started first. The start of the first motor 281 drives the threaded column 282 to rotate. Since the movable seat 22 is limited by the slide groove 29, the rotation of the first motor 281 drives the movable seat 22 to move. When the movable seat 22 moves, it drives the spray gun 25 to move to the upper side of the fuse shield 310, thereby accurately controlling the spraying position.

[0051] S3. After the spray position calibration is completed, the motor 26 is started. The motor 26 drives the gear 27 to rotate. Since the gear ring 23 and the gear 27 are meshed with each other, the gear 27 rotates, driving the gear ring 23 to move. When the gear ring 23 moves, it can drive the spray gun 25 to perform a circular motion through the L-shaped plate 24, so that the protective coating can be sprayed on the fuse shield 310 from different angles and positions.

[0052] S4. When spraying, the second motor 41 drives the bidirectional threaded rod 43 to rotate, thereby driving the slider 44 to move. When the slider 44 moves, the support rod 45 can push the connecting seat 46 to move vertically in the opposite direction, and the connecting seat 46 will drive the support plate 5 to move. The guiding effect of the guide rod 471 and the guide block 472 can improve the movement accuracy of the support plate 5. When the support plate 5 moves, the bracket 21 can drive the fuse shield 310 to move, so that the distance between the fuse shield 310 and the spray gun 25 can be kept stable.

[0053] Working principle: When using this device, the first motor 281 drives the threaded column 282 to rotate, thereby driving the movable seat 22 to move, and then driving the spray gun 25 to move above the fuse shield 310. When the movement is completed, the motor 26 drives the gear 27 to rotate. Since the gear 27 is engaged with the gear ring 23, when the gear 27 rotates, the gear ring 23 will drive the spray gun 25 to perform a circular motion through the L-shaped plate 24, so that the fuse shield 310 can be sprayed from different directions and angles, making the coating spray more uniform.

[0054] Before spraying, the fuse shield 310 needs to be fixed. First, the fuse shield 310 is placed outside the anti-slip sheet 39. The electric telescopic rod 36 is then started, and drives the support sheet 37 to move to the left. The leftward movement of the support sheet 37 pushes the second connecting rod 38 to tilt, thereby pushing the connecting sheet 35 to move. The multiple connecting sheets 35 will expand outward at the same time, thereby driving the anti-slip sheet 39 to contact with the fuse shield 310, and the fuse shield 310 can be fixed.

[0055] Finally, when spraying, the second motor 41 will drive the bidirectional threaded rod 43 to rotate. Since the slider 44 is limited by the groove 42, when the bidirectional threaded rod 43 rotates, it will drive the slider 44 to move. When the slider 44 moves, the support rod 45 can push the connecting seat 46 to move upward. The connecting seat 46 will drive the back plate 31 to move upward through the support plate 5, thereby driving the fuse protective cover 310 to move, so that the distance between the fuse protective cover 310 and the spray gun 25 will not change significantly.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fuse shield protective coating, comprising a base (1), characterized in that: A support plate (5) is provided in the middle of the upper side of the base (1); an adjustment mechanism (2) is provided on the top of the base (1); the adjustment mechanism (2) is used to facilitate spraying the protective coating on the fuse shield from different angles; a fixing mechanism (3) is provided on the top of the support plate (5); the fixing mechanism (3) is used to facilitate fixing the fuse shield; a lifting mechanism (4) is provided in the middle of the top of the base (1); the lifting mechanism (4) is used to facilitate adjusting the distance between the fuse shield and the spray head; The adjusting mechanism (2) comprises a bracket (21), the bracket (21) is fixedly connected to the top of the base (1), a movable seat (22) is provided on the inner top of the bracket (21), a gear ring (23) is slidably connected to the bottom of the movable seat (22), a spray gun (25) is fixedly connected to the inner top of the gear ring (23), an L-shaped plate (24) is fixedly connected to the right side of the top of the spray gun (25), the bottom end of the L-shaped plate (24) passes through the spray gun (25), a motor (26) is fixedly connected to the right side of the movable seat (22), an output end of the motor (26) passes through the movable seat (22) and is fixedly connected to a gear (27), the gear (27) is meshed with the gear ring (23), and a moving component (28) is provided on the left side of the top of the bracket (21).

2. The protective coating for a fuse shield according to claim 1, characterized in that: The fixing mechanism (3) comprises a back plate (31), the back plate (31) being fixedly connected to the left side of the top of the support plate (5), a hollow column (32) being provided on the left side of the back plate (31), the right end of the hollow column (32) passing through the back plate (31) and being fixedly connected to a hollow tube (33), the right side of the hollow tube (33) being equidistantly connected to a first connecting rod (34) in rotation, the right end of the first connecting rod (34) being rotatably connected to a connecting piece (35), the inner left end of the hollow column (32) being fixedly connected to a telescopic rod (36), the right end of the telescopic rod (36) passing through the hollow tube (33) and being fixedly connected to a supporting piece (37), the outer side of the supporting piece (37) being rotatably connected to a second connecting rod (38), the left end of the second connecting rod (38) being rotatably connected to the connecting piece (35).

3. The protective coating for a fuse shield according to claim 1, characterized in that: The lifting mechanism (4) includes a second motor (41), which is fixedly connected to the left side of the base (1). A groove (42) is provided in the middle of the top of the base (1). The output end of the second motor (41) passes through the base (1) and is fixedly connected to a bidirectional threaded rod (43). The left and right sides of the outer wall of the bidirectional threaded rod (43) are both threadedly connected to sliders (44). The top of the slider (44) is rotatably connected to a support rod (45). The top of the support rod (45) is rotatably connected to a connecting seat (46). The top of the connecting seat (46) is fixedly connected to the support plate (5). Guide components (47) are provided on the left and right sides of the top of the base (1).

4. The protective coating for a fuse shield according to claim 1, characterized in that: The moving assembly (28) includes a first motor (281), the first motor (281) is fixedly connected to the top left side of the bracket (21), the output end of the first motor (281) passes through the bracket (21) and is fixedly connected to a threaded column (282), and the threaded column (282) is threadedly connected to the movable seat (22).

5. The protective coating for a fuse shield according to claim 3, characterized in that: The guide assembly (47) includes a guide rod (471), wherein the two guide rods (471) are fixedly connected to the left and right sides of the top of the base (1), respectively. The left and right sides of the support plate (5) are both fixedly connected to guide blocks (472), and the top of the guide rod (471) passes through the guide block (472).

6. The protective coating for a fuse shield according to claim 1, characterized in that: The adjustment mechanism (2) further includes a slide groove (29) which is provided at the front and rear ends of the inner top of the bracket (21), and the front and rear sides of the movable seat (22) are respectively slidably connected to the corresponding slide groove (29).

7. The protective coating for a fuse shield according to claim 2, characterized in that: The fixing mechanism (3) further comprises an anti-slip sheet (39), wherein the anti-slip sheet (39) is fixedly connected to one side of the connecting sheet (35), and a fuse protection cover (310) is provided on the outer side of the anti-slip sheet (39).

8. The protective coating for a fuse shield according to claim 2, characterized in that: The fixing mechanism (3) further comprises a fixing plate (311), wherein the fixing plate (311) is fixedly connected to the outside of the hollow column (32), and screws (312) are threadedly connected to the four sides of the left side of the fixing plate (311), and the right end of the screw (312) passes through the fixing plate (311) and is threadedly connected to the back plate (31).

9. The protective coating for a fuse shield according to claim 5, characterized in that: The guide assembly (47) further comprises a limit block (473), wherein the limit block (473) is threadedly connected to the top of the guide block (472), and the outer size of the slider (44) matches the size of the groove (42).

10. A process for preparing a protective coating for a fuse shield, characterized in that: A multi-stage gradient temperature sterilization device according to any one of claims 1 to 9, comprising the following steps: S1. When spraying the protective coating on the fuse shield, the fuse shield (310) is placed on the outside of the anti-slip sheet (39), and the telescopic rod (36) is started. The telescopic rod (36) then drives the support sheet (37) to move to the left. When the support sheet (37) moves, it drives the second connecting rod (38) to tilt, thereby pushing the connecting sheet (35) to move. The multiple connecting sheets (35) will then expand outward and drive the anti-slip sheet (39) to contact the fuse shield (310), so that the fuse shield (310) can be fixed from the inside. S2. After the fuse protection cover (310) is fixed, the first motor (281) is started first. The start of the first motor (281) drives the threaded column (282) to rotate. Since the movable seat (22) is limited by the sliding groove (29), the rotation of the first motor (281) drives the movable seat (22) to move. When the movable seat (22) moves, it drives the spray gun (25) to move to the upper side of the fuse protection cover (310), thereby accurately controlling the spraying position. S3. After the spraying position calibration is completed, the motor (26) is started. The motor (26) is started to drive the gear (27) to rotate. Since the gear ring (23) and the gear (27) are meshed with each other, the gear (27) rotates and drives the gear ring (23) to move. When the gear ring (23) moves, it can drive the spray gun (25) to perform a circular motion through the L-shaped plate (24), so that the protective coating can be sprayed on the fuse shield (310) from different angles and positions; S4. When spraying, the second motor (41) drives the bidirectional threaded rod (43) to rotate, thereby driving the slider (44) to move. When the slider (44) moves, the support rod (45) can push the connecting seat (46) to move vertically in the opposite direction. The connecting seat (46) will then drive the support plate (5) to move. The guiding effect of the guide rod (471) and the guide block (472) can improve the movement accuracy of the support plate (5). When the support plate (5) moves, the bracket (21) can drive the fuse shield (310) to move, so that the distance between the fuse shield (310) and the spray gun (25) can be kept stable.

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