Lifting device for acetaminophen reaction kettle cover

Abstract

The invention relates to a lifting device for a kettle cover of an acetaminophen reaction kettle, and belongs to the technical field of lifting devices.The lifting device comprises a kettle body and the kettle cover, a first supporting plate is fixedly arranged on the outer side wall of the kettle body, and an arc-shaped plate is rotationally connected to the first supporting plate; the end, away from the first supporting plate, of the arc-shaped plate extends to the side, away from the first supporting plate, of the kettle body, a fixing assembly capable of being fixedly separated from the end, away from the first supporting plate, of the arc-shaped plate is arranged on the side, away from the first supporting plate, of the kettle body, and a fixing rod is connected to the upper surface of the kettle cover; a moving assembly capable of driving the fixed plate to vertically move is arranged between the fixed plate and the arc-shaped plate, a driving assembly for providing power for the moving assembly is arranged on the fixed plate, a rotating assembly capable of driving the arc-shaped plate to rotate is arranged at the first supporting plate, and the stirring blade maintenance device has the effect of improving the stirring blade maintenance working efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of lifting devices, and in particular to a lifting device for a lid of an acetaminophen reactor. Background Art

[0002] The production process of acetaminophen is mainly synthesized by chemical reaction of raw materials. A typical process is to use phenol and acetyl chloride as raw materials, react in a reactor to produce acetaminophen. In addition, there is also a process of acylation reaction using acetic acid and para-aminophenol as raw materials. In these processes, the reactor is a key equipment, which undertakes tasks such as mixing and heating the reaction materials.

[0003] The existing reactor structure is mainly composed of a reactor body and a reactor cover, wherein the reactor cover is installed on the top of the reactor body and fixed by bolting. The inner side of the reactor cover is rotatably connected to a rotating shaft, one end of which extends to the inside of the reactor body. A plurality of stirring blades are fixedly installed on the side wall of the rotating shaft, and these stirring blades are evenly distributed along the circumference of the rotating shaft. A motor is firmly installed on the upper surface of the reactor cover, and the output shaft of the motor penetrates the reactor cover and is directly connected to the upper end of the rotating shaft. In addition, a feed port is provided on the reactor cover, and a discharge port is provided at the bottom of the reactor body. During operation, the raw materials are put into the reactor body through the feed port. Then the motor is started, and the motor drives the rotating shaft to rotate, which in turn drives the stirring blades to rotate together, so as to achieve effective stirring and mixing of the raw materials. After the mixed reaction is completed, the reactants can be smoothly discharged from the reactor body through the discharge port.

[0004] With regard to the above-mentioned related technologies, during the later maintenance of the stirring blades, the staff must first use tools to loosen the bolts one by one. After all the bolts are removed, the heavy kettle cover must be manually moved to one side to release the sealing state of the upper part of the kettle body. Then, the staff can enter the kettle body to perform maintenance on the stirring blades. The whole process is time-consuming and laborious, and thus there is a defect of low maintenance efficiency of the stirring blades. Summary of the invention

[0005] In order to improve the work efficiency of stirring blade maintenance, the present application provides a lifting device for the lid of an acetaminophen reactor.

[0006] The present application provides a lifting device for the lid of an acetaminophen reactor using the following technical solution:

[0007] A lifting device for a kettle cover of an acetaminophen reaction kettle comprises a kettle body and a kettle cover, wherein a first support plate is fixedly arranged on the outer side wall of the kettle body, an arc plate is rotatably connected to the first support plate, an end of the arc plate away from the first support plate extends to a side of the kettle body away from the first support plate, a fixing component which can be fixed and separated from the end of the arc plate away from the first support plate is arranged on the side of the kettle body away from the first support plate, a fixing rod is connected to the upper surface of the kettle cover, a fixing plate is fixedly arranged on the upper end of the fixing rod, a moving component which can drive the fixing plate to move vertically is arranged between the fixing plate and the arc plate, a driving component which provides power for the moving component is arranged on the fixing plate, and a rotating component which can drive the arc plate to rotate is arranged at the first support plate.

[0008] By adopting the above technical solution, the driving assembly provides power for the moving assembly, the moving assembly lifts the fixed plate upward, and the fixed rod and the kettle cover are linked to rise. After the kettle cover is lifted to the set position, the fixed assembly releases the constraint on the end of the arc plate away from the first support plate, the rotating assembly drives the arc plate to rotate in the direction away from the kettle body, and continues to pull the fixed plate, the fixed rod and the kettle cover upward through the moving assembly, so that the kettle cover deviates from the top of the kettle body, which is convenient for the staff to directly enter the kettle body to perform maintenance work on the stirring blades. This process does not require manual loosening of bolts one by one or manual movement of the kettle cover, which saves time and improves the efficiency of stirring blade maintenance.

[0009] Optionally, an auxiliary block is fixedly provided on the side of the kettle body facing away from the first support plate, a first slot is opened on one side of the auxiliary block, an end of the arc plate away from the first support plate is plugged and adapted to the first slot, a first clamping slot is opened on the lower surface of the auxiliary block, the first clamping slot and the first slot are connected, a movable slot is opened on the lower surface of the end of the arc plate away from the first support plate, the fixed component includes a clamping block and a first spring, the clamping block is arranged in the movable slot, the clamping block and the arc plate are slidably connected, the first spring is fixed between the clamping block and the upper top wall of the movable slot, the clamping block and the first clamping slot are clamped and adapted, and the lower surface of the clamping block is set to an inclined surface.

[0010] By adopting the above technical solution, the arc plate drives the block to move during the rotation of the arc plate toward the kettle body. During the movement of the block, the inclined surface of the block first contacts the side wall of the auxiliary block, and under the guidance of the auxiliary block, the block moves toward the movable groove, and the first spring is compressed. When the block moves into the first slot and the block and the first slot are aligned, the first spring releases the elastic force and pushes the block to move toward the first slot. One end of the block extends into the first slot, thereby realizing the clamping and fixing of the arc plate and the auxiliary block, thereby making it difficult for the arc plate to move relative to the kettle body.

[0011] Optionally, a leg is fixedly provided on the lower surface of one end of the arc-shaped plate away from the first support plate, and a roller is connected to the bottom end of the leg, and the roller is in contact with the ground.

[0012] By adopting the above technical solution, during the rotation of the arc plate, the arc plate drives the legs to move, the legs drive the rollers to move, the rollers roll on the ground, and at the same time the rollers support the legs, and the legs support the arc plate, so that the arc plate is not easy to break.

[0013] Optionally, the movable component includes a threaded sleeve and a screw rod, and two threaded sleeves and two screw rods are provided in one-to-one correspondence. The two threaded sleeves are respectively arranged at the two ends of the fixed plate, and the threaded sleeve passes through the fixed plate and is rotatably connected to the fixed plate. The upper surfaces of the two screw rods are respectively fixedly connected to the upper surfaces of the two ends of the arc plate, and the upper ends of the screw rods are threadedly connected to the threaded sleeves.

[0014] By adopting the above technical solution, the driving component drives the threaded sleeve to rotate, and under the guidance of the arc plate, the threaded sleeve moves upward relative to the screw rod, the threaded sleeve drives the fixed plate to move upward, the fixed plate drives the fixed rod to move, and the fixed rod drives the kettle cover to move, so that the moving component realizes the function of driving the kettle cover to move.

[0015] Optionally, the drive assembly includes a motor and a synchronous wheel. The motor is fixed on a fixed plate. Two synchronous wheels are provided. The two synchronous wheels are respectively fixedly connected to the upper ends of two threaded sleeves. The output shaft of the motor is fixedly connected to one of the two synchronous wheels. The outer sleeves of the two synchronous wheels are provided with synchronous belts.

[0016] By adopting the above technical solution, the motor is started, the motor drives the synchronous wheel connected to it to rotate, the synchronous wheel drives the synchronous belt to rotate, the synchronous belt drives the synchronous wheel away from the motor to rotate, and the synchronous wheel drives the threaded sleeve to rotate, so that the driving component realizes the function of driving the threaded sleeve to rotate

[0017] Optionally, the auxiliary block is slidably connected to a push block at the first slot, a second support plate is provided below the auxiliary block, the second support plate is fixedly connected to the kettle body, an extrusion plate is slidably connected to the second support plate, the side of the extrusion plate away from the kettle body is set as an inclined surface, a second spring is fixed between the extrusion plate and the kettle body, the side of the push block away from the kettle body is set as an inclined surface, and a pushing component for pushing the extrusion plate toward the kettle body is provided at the fixed plate.

[0018] By adopting the above technical solution, during the process of the card block moving toward the first card slot, the card block pushes the push block to move downward, during the process of the fixed plate moving upward, the pushing assembly is started and pushes the extrusion plate toward the kettle body, the second spring is compressed, and the extrusion plate pushes the push block to move into the first card slot, and during the movement of the push block, the push block pushes the card block to move out of the first card slot, thereby releasing the card connection and fixation of the arc plate and the auxiliary block, thereby eliminating the need for staff to manually release the card connection and fixation of the auxiliary block and the arc plate, which provides convenience for the staff's work.

[0019] Optionally, the pushing assembly includes a first connecting rod and a push plate, one end of the first connecting rod is fixedly connected to one end of the fixed plate, the first connecting rod is vertically arranged, the push plate is fixedly connected to one end of the first connecting rod away from the fixed plate, and one side of the push plate is arranged as an inclined surface.

[0020] By adopting the above technical solution, in the process of the fixed plate moving upward, the fixed plate drives the first connecting rod to move, and the first connecting rod drives the push plate to move, and the side of the push plate close to the kettle body first contacts the inclined surface of the extrusion plate away from the kettle body, and pushes the extrusion plate to move toward the kettle body, and the second spring is compressed. After the push plate and the extrusion plate are separated, the second spring releases the elastic force, pushing the extrusion plate to move away from the kettle body, and in the process of the push plate moving downward, the inclined surface of the push plate first contacts the end of the extrusion plate away from the second spring, and moves toward the kettle body again, thereby the pushing component realizes the function of pushing the extrusion plate toward the kettle body.

[0021] Optionally, a support rod is rotatably connected to the upper surface of the first support plate, and the upper end of the support rod is fixedly connected to the arc plate, a bearing plate is fixedly provided on the first support plate, a transmission rod is arranged on the bearing plate, the transmission rod passes through the bearing plate and is rotatably connected to the bearing plate, the rotating assembly includes a first bevel gear and a second bevel gear, the first bevel gear and one end of the transmission rod are fixedly connected, the second bevel gear is fixed on the support rod, the second bevel gear and the first bevel gear are meshed, and a power assembly that provides power for the rotation of the transmission rod is arranged at the first support plate.

[0022] By adopting the above technical solution, after the fixing assembly releases the fixation of the arc plate, the power assembly drives the transmission rod to rotate, the transmission rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the support rod to rotate, the support rod drives the arc plate to rotate, the arc plate drives the fixed plate to move through the moving assembly, the fixed plate drives the fixed rod to move, and the fixed rod drives the kettle cover to move, so that the staff does not need to manually rotate the arc plate, which provides convenience for the staff's work.

[0023] Optionally, a displacement plate is provided on the threaded sleeve directly above the first support plate, the threaded sleeve passes through the displacement plate and is rotatably connected to the displacement plate, a guide assembly for guiding the movement of the displacement plate is provided on the kettle body, a second connecting rod is fixedly provided on the lower surface of the displacement plate, and a power assembly includes a rack and a gear, the rack is fixedly connected to the bottom end of the second connecting rod, the gear is fixedly connected to one end of the transmission rod away from the first bevel gear, and the gear and the rack are meshingly matched.

[0024] By adopting the above technical solution, during the upward movement of the threaded sleeve, the threaded sleeve drives the displacement plate to move upward. At the same time, under the guidance of the guide assembly, the displacement plate is not easy to rotate. The displacement plate drives the second connecting rod to move, and the second connecting rod drives the rack to move. During the movement of the rack, the rack and the gear are meshed and drive the gear to rotate. The gear drives the transmission rod to rotate, so that the power assembly realizes the function of driving the transmission rod to rotate.

[0025] Optionally, the guide assembly includes a guide rail and a slider, the guide rail is fixedly connected to the side wall of the kettle body, the slider is arranged in the guide rail, the slider is slidably connected to the guide rail, and the side of the slider facing the outside of the guide rail is fixedly connected to the displacement plate.

[0026] By adopting the above technical solution, when the threaded sleeve drives the displacement plate to move upward, the displacement plate drives the slider to slide in the guide rail. Through the guiding effect of the slider and the guide rail, the displacement plate is not easy to rotate with the threaded sleeve.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When maintaining the stirring blade, the moving component lifts the kettle cover, and the fixed component releases the constraint of the arc plate. The arc plate rotates, driving the kettle cover to deviate from the kettle body, which is convenient for maintenance. There is no need to manually loosen the bolts or move the kettle cover, thereby improving the work efficiency of the stirring blade maintenance;

[0029] 2. When the card block moves into the card slot, the push block is pushed down, and when the fixed plate moves up, the push plate is driven to move by the first connecting rod. The push plate first contacts and pushes the extrusion plate, compressing the second spring, so that the push block pushes the card block out of the first card slot, realizing automatic release of the card connection, providing convenience for the staff;

[0030] 3. After the fixing assembly releases the fixation of the arc plate, the rotating assembly is started, and the supporting rod drives the arc plate to rotate through the transmission rod. The arc plate drives the kettle cover to move through the moving assembly, and the staff does not need to manually rotate the arc plate, which provides convenience for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural schematic diagram of a lifting device for a acetaminophen reactor cover according to an embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of the structure of the auxiliary block in the embodiment of the present application;

[0033] Figure 3 This is a cross-sectional view of the structure of the fixing assembly in the embodiment of the present application;

[0034] Figure 4 It is a structural cross-sectional view showing the displacement plate in the embodiment of the present application.

[0035] In the figure, 1, kettle body; 11, first support plate; 111, support rod; 112, bearing plate; 113, transmission rod; 12, second support plate; 121, extrusion plate; 122, second spring; 13, power assembly; 131, rack; 132, gear; 14, displacement plate; 15, guide assembly; 151, guide rail; 152, slider; 16, second connecting rod; 2, kettle cover; 21, fixing rod; 22, fixing plate; 23, synchronous belt; 3, arc Plate; 31, moving slot; 32, support leg; 33, roller; 4, fixing component; 41, clamping block; 42, first spring; 5, moving component; 51, threaded sleeve; 52, screw; 6, driving component; 61, motor; 62, synchronous wheel; 7, rotating component; 71, first bevel gear; 72, second bevel gear; 8, auxiliary block; 81, first slot; 82, first clamping slot; 83, push block; 9, pushing component; 91, first connecting rod; 92, push plate. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0037] The embodiment of the present application discloses a lifting device for a lid of an acetaminophen reactor.

[0038] refer to Figure 1 A lifting device for a kettle cover 2 of an acetaminophen reactor comprises a kettle body 1 and a kettle cover 2, wherein the kettle cover 2 is arranged at the upper end of the kettle body 1, the kettle cover 2 abuts against the kettle body 1, two fixing rods 21 are fixedly arranged on the upper surface of the kettle cover 2, the fixing rods 21 are vertically arranged, a fixing plate 22 is arranged above the fixing rods 21, the fixing plate 22 is perpendicular to the fixing rods 21, and the two ends of the fixing plate 22 are respectively fixedly connected to the upper ends of the fixing rods 21.

[0039] refer to Figure 1 A first support plate 11 is fixedly provided on an outer side wall of the kettle body 1. The first support plate 11 is horizontally arranged. A support rod 111 is rotatably connected to the upper surface of the first support plate 11. The length direction of the support rod 111 is perpendicular to the first support plate 11. An arc plate 3 is fixedly provided on the upper end of the support rod 111. The arc plate 3 is horizontally arranged. One end of the arc plate 3 away from the support rod 111 extends to a side of the kettle body 1 away from the first support plate 11. A moving component 5 that can drive the fixed plate 22 to move upward is arranged between the fixed plate 22 and the arc plate 3.

[0040] The moving component 5 includes a threaded sleeve 51 and a screw rod 52. There are two threaded sleeves 51 and two screw rods 52. The two threaded sleeves 51 are respectively arranged at the two ends of the fixed plate 22. The length direction of the threaded sleeve 51 is perpendicular to the fixed plate 22. The threaded sleeve 51 penetrates the fixed plate 22 and is rotatably connected to the fixed plate 22. The two screw rods 52 are respectively arranged at the two ends of the arc plate 3. The length direction of the screw rod 52 is parallel to the length direction of the threaded sleeve 51. The bottom end of the screw rod 52 is fixedly connected to the arc plate 3, and the upper end of the screw rod 52 is threadedly connected to the threaded sleeve 51 and corresponds one to one. A driving component 6 capable of driving the two threaded sleeves 51 to rotate is provided on the fixed plate 22.

[0041] The driving assembly 6 includes a motor 61 and a synchronous wheel 62. The motor 61 is fixedly connected to the fixed plate 22. Two synchronous wheels 62 are provided. The two synchronous wheels 62 are respectively fixedly connected to the upper ends of the two threaded sleeves 51. The output shaft of the motor 61 is fixedly connected to one of the two synchronous wheels 62. A synchronous belt 23 is provided on the outer sleeves of the two synchronous wheels 62.

[0042] When the kettle cover 2 is moved upward, the motor 61 is started, and the motor 61 drives the synchronous wheel 62 connected thereto to rotate, and the synchronous wheel 62 drives the synchronous belt 23 to rotate, and the synchronous belt 23 drives the synchronous wheel 62 away from the motor 61 to rotate, and the synchronous wheel 62 drives the threaded sleeve 51 to rotate. Under the guidance of the arc plate 3 and the screw rod 52, the threaded sleeve 51 moves upward, and the threaded sleeve 51 drives the fixed plate 22 to move, and the fixed plate 22 drives the fixed rod 21 to move, and the fixed rod 21 drives the kettle cover 2 to move upward, so that the kettle cover 2 and the kettle body 1 are separated, and the blockage of the upper end of the kettle body 1 is released.

[0043] refer to Figure 1 , Figure 2 and Figure 3A leg 32 is fixedly provided on the lower surface of one end of the arc plate 3 away from the support rod 111. The leg 32 is vertically arranged, and a roller 33 is connected to the bottom end of the leg 32. An auxiliary block 8 is fixedly provided on the side of the kettle body 1 away from the first support plate 11. The auxiliary block 8 is penetrated by a first slot 81. The first slot 81 penetrates a side wall of the auxiliary block 8 away from the kettle body 1. One end of the arc plate 3 away from the support rod 111 is plugged and adapted with the first slot 81. The auxiliary block 8 is provided with a first slot 82 on the lower side wall of the first slot 81. The first slot 82 penetrates the lower surface of the auxiliary block 8. The auxiliary block 8 is slidably connected with a push block 83 at the first slot 82. The push block 83 is away from the kettle body 1. One side wall is set as an inclined plane, and a second support plate 12 is set below the auxiliary block 8, the second support plate 12 is parallel to the auxiliary block 8, the second support plate 12 is fixedly connected to the kettle body 1, and an extrusion plate 121 is slidably connected to the second support plate 12, the extrusion plate 121 is parallel to the second support plate 12, and a second spring 122 is fixedly arranged between the extrusion plate 121 and the kettle body 1, and the side of the extrusion plate 121 away from the second spring 122 is inclined from top to bottom toward the kettle body 1, and a movable groove 31 is provided on the lower surface of the end of the arc plate 3 away from the support rod 111, and a fixing component 4 that can be clamped and fixed with the auxiliary block 8 is provided at the movable groove 31.

[0044] The fixed component 4 includes a block 41 and a first spring 42. The block 41 is arranged in the movable groove 31. The block 41 and the arc plate 3 are slidably connected. The first spring 42 is fixed between the block 41 and the upper top wall of the movable groove 31. The lower surface of the block 41 is set as an inclined surface. The block 41 and the first groove 82 are snap-fitted. A pushing component 9 for pushing the extrusion plate 121 toward the kettle body 1 is provided at the fixed plate 22.

[0045] The pushing assembly 9 includes a first connecting rod 91 and a push plate 92. One end of the first connecting rod 91 is fixedly connected to the lower surface of one end of the fixed plate 22. The first connecting rod 91 is vertically arranged, the push plate 92 is fixedly connected to the lower end of the first connecting rod 91, the push plate 92 is horizontally arranged, and the side of the push plate 92 away from the first connecting rod 91 is arranged as an inclined surface.

[0046] During the rotation of the arc plate 3 toward the kettle body 1, the arc plate 3 drives the block 41 and the leg 32 to move, and the leg 32 drives the roller 33 to move. The roller 33 rolls on the ground. The setting of the roller 33 and the leg 32 provides support for the arc plate 3. During the movement of the block 41, the block 41 first contacts the side wall of the auxiliary block 8, and under the guidance of the side wall, the block 41 moves toward the moving groove 31, and the first spring 42 is compressed. After the arc plate 3 is inserted into the first slot 81, the block 41 and the first slot 82 are aligned, and the first spring 42 releases the elastic force, pushing the block 41 to move toward the first slot 82. One end of the block 41 is connected to the first slot 82, and pushes one end of the push block 83 to move outside the first slot 82, so that the arc plate 3 and the auxiliary block 8 are connected and fixed.

[0047] When it is necessary to release the blockage of the kettle cover 2 on the upper end of the kettle body 1, the moving component 5 drives the fixed plate 22 to move upward, and the fixed plate 22 drives the first connecting rod 91 to move, and the first connecting rod 91 drives the push plate 92 to move. During the movement of the push plate 92, the end of the push plate 92 away from the first connecting rod 91 contacts the inclined surface of the extrusion plate 121 and pushes the extrusion plate 121 toward the kettle body 1. The second spring 122 is compressed. At the same time, the extrusion plate 121 is close to a side wall of the kettle body 1 and contacts the inclined surface of the push block 83, and squeezes the push block 83 upward. The push block 83 pushes the card block 41 to move, so that the card block 41 and the first card groove 82 are disengaged, and the fixation of the arc plate 3 is released. When the arc plate 3 is rotated in the direction away from the kettle body 1, the arc plate 3 drives the fixed plate 22 to move through the moving component 5, and the fixed plate 22 drives the fixed rod 21 to move, and the fixed rod 21 drives the kettle cover 2 to move, so that the kettle cover 2 deviates from the kettle body 1.

[0048] refer to Figure 1 , Figure 2 and Figure 4 A displacement plate 14 is arranged on the threaded sleeve 51, the threaded sleeve 51 and the displacement plate 14 are perpendicular, the threaded sleeve 51 penetrates the displacement plate 14 and is rotatably connected to the displacement plate 14, a guide assembly 15 for guiding the displacement plate 14 to move is arranged on the kettle body 1, a bearing plate 112 is fixedly arranged on the first support plate 11, the first support plate 11 and the bearing plate 112 are perpendicular, a transmission rod 113 is arranged on the bearing plate 112, the length direction of the transmission rod 113 is perpendicular to the bearing plate 112, the transmission rod 113 penetrates the bearing plate 112 and is rotatably connected to the bearing plate 112, and a rotating assembly 7 capable of driving the support rod 111 to rotate and a power assembly 13 for providing power for the rotation of the transmission rod 113 are arranged at the transmission rod 113.

[0049] The guide assembly 15 includes a guide rail 151 and a slider 152. The guide rail 151 is fixedly connected to the outer wall of the kettle body 1. The length direction of the guide rail 151 is parallel to the length direction of the threaded sleeve 51. The slider 152 is arranged in the guide rail 151. The slider 152 is slidably connected to the guide rail 151. In the embodiment of the present application, the slider 152 is a T-block, and the side of the slider 152 facing away from the kettle body 1 is fixedly connected to the displacement plate 14.

[0050] The rotating assembly 7 includes a first bevel gear 71 and a second bevel gear 72. The first bevel gear 71 is fixedly connected to one end of the transmission rod 113 close to the support rod 111. The second bevel gear 72 is arranged on the support rod 111. The support rod 111 passes through the second bevel gear 72 and is fixedly connected to the second bevel gear 72. The first bevel gear 71 and the second bevel gear 72 are meshed.

[0051] The power assembly 13 includes a gear 132 and a rack 131. The gear 132 is fixedly connected to one end of the transmission rod 113 away from the first bevel gear 71. A second connecting rod 16 is fixedly provided on the lower surface of the displacement plate 14. The second connecting rod 16 is perpendicular to the displacement plate 14. The bottom end of the second connecting rod 16 is fixedly connected to the rack 131. The rack 131 is vertically arranged, and the rack 131 and the gear 132 are meshed and matched.

[0052] During the upward movement of the threaded sleeve 51, the threaded sleeve 51 drives the displacement plate 14 to move. Under the restriction of the slider 152, the displacement plate 14 is not easy to rotate. The displacement plate 14 drives the second connecting rod 16 to move, and the second connecting rod 16 drives the rack 131 to move. After the fixation of the end of the arc plate 3 away from the support rod 111 is released, the rack 131 and the gear 132 are engaged and drive the gear 132 to rotate. The gear 132 drives the transmission rod 113 to rotate, and the transmission rod 113 drives the first bevel gear 71 to rotate, the first bevel gear 71 drives the second bevel gear 72 to rotate, and the second bevel gear 72 drives the support rod 111 to rotate. The support rod 111 drives the arc plate 3 to rotate in the direction away from the kettle body 1, and there is no need for the staff to manually rotate the arc plate 3.

[0053] The implementation principle of the lifting device for the kettle cover 2 of the acetaminophen reactor in the embodiment of the present application is as follows: when maintaining the stirring blade, the moving component 5 first lifts the fixed plate 22 and the kettle cover 2. After the kettle cover 2 moves to the set position, the fixed component 4 releases the arc plate 3, and then the rotating component 7 drives the arc plate 3 to rotate. The arc plate 3 drives the kettle cover 2 to deflect through the moving component 5, which is convenient for the staff to enter the kettle for maintenance. The whole process does not require manual loosening of bolts or moving of the kettle cover 2, thereby improving the work efficiency of the stirring blade maintenance.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lifting device for a acetaminophen reaction kettle cover (2), comprising a kettle body (1) and a kettle cover (2), characterized in that: The outer wall of the kettle body (1) is fixedly provided with a first support plate (11), and an arc-shaped plate (3) is rotatably connected to the first support plate (11), and one end of the arc-shaped plate (3) away from the first support plate (11) extends to a side of the kettle body (1) away from the first support plate (11), and a fixing component (4) capable of being fixed and separated from the end of the arc-shaped plate (3) away from the first support plate (11) is provided on the side of the kettle body (1) away from the first support plate (11), and a fixing rod (21) is connected to the upper surface of the kettle cover (2), and a fixing plate (22) is fixedly provided at the upper end of the fixing rod (21), and a moving component (5) capable of driving the fixing plate (22) to move vertically is provided between the fixing plate (22) and the arc-shaped plate (3), and a driving component (6) for providing power to the moving component (5) is provided on the fixing plate (22), and a rotating component (7) capable of driving the arc-shaped plate (3) to rotate is provided at the first support plate (11).

2. The lifting device for the lid of a paracetamol reactor (2) according to claim 1, characterized in that: An auxiliary block (8) is fixedly arranged on the side of the kettle body (1) away from the first support plate (11), a first slot (81) is provided on one side of the auxiliary block (8), an end of the arc plate (3) away from the first support plate (11) is plugged and matched with the first slot (81), a first clamping slot (82) is provided on the lower surface of the auxiliary block (8), the first clamping slot (82) and the first slot (81) are connected, a movable slot (31) is provided on the lower surface of the end of the arc plate (3) away from the first support plate (11), the fixing component (4) comprises a clamping block (41) and a first spring (42), the clamping block (41) is arranged in the movable slot (31), the clamping block (41) and the arc plate (3) are slidably connected, the first spring (42) is fixedly arranged between the clamping block (41) and the upper top wall of the movable slot (31), the clamping block (41) and the first clamping slot (82) are clamped and matched, and the lower surface of the clamping block (41) is arranged as an inclined surface.

3. The lifting device for the lid (2) of a paracetamol reactor according to claim 1, characterized in that: A support leg (32) is fixedly provided on the lower surface of one end of the arc-shaped plate (3) away from the first support plate (11), and a roller (33) is connected to the bottom end of the support leg (32), and the roller (33) is in contact with the ground.

4. The lifting device for the lid of the acetaminophen reactor according to claim 2, characterized in that: The moving assembly (5) comprises a threaded sleeve (51) and a screw rod (52). Two threaded sleeves (51) and two screw rods (52) are provided and correspond to each other. The two threaded sleeves (51) are respectively provided at two ends of the fixed plate (22). The threaded sleeves (51) penetrate the fixed plate (22) and are rotatably connected to the fixed plate (22). The upper surfaces of the two screw rods (52) are respectively fixedly connected to the upper surfaces of the two ends of the arc plate (3). The upper ends of the screw rods (52) are threadedly connected to the threaded sleeves (51).

5. The lifting device for the lid (2) of a paracetamol reactor according to claim 4, characterized in that: The driving assembly (6) comprises a motor (61) and a synchronous wheel (62), wherein the motor (61) is fixedly mounted on a fixed plate (22), and two synchronous wheels (62) are provided, wherein the two synchronous wheels (62) are respectively fixedly connected to the upper ends of two threaded sleeves (51), an output shaft of the motor (61) is fixedly connected to one of the two synchronous wheels (62), and the outer sleeves of the two synchronous wheels (62) are provided with synchronous belts (23).

6. The lifting device for the lid (2) of a paracetamol reactor according to claim 2, characterized in that: The auxiliary block (8) is slidably connected to a push block (83) at the first slot (82); a second support plate (12) is provided below the auxiliary block (8); the second support plate (12) is fixedly connected to the kettle body (1); a pressing plate (121) is slidably connected to the second support plate (12); a side of the pressing plate (121) away from the kettle body (1) is arranged as an inclined surface; a second spring (122) is fixedly arranged between the pressing plate (121) and the kettle body (1); a side of the pushing block (83) away from the kettle body (1) is arranged as an inclined surface; and a pushing component (9) for pushing the pressing plate (121) toward the kettle body (1) is provided at the fixed plate (22).

7. The lifting device for the lid (2) of the acetaminophen reaction kettle according to claim 6, characterized in that: The pushing assembly (9) comprises a first connecting rod (91) and a push plate (92), one end of the first connecting rod (91) is fixedly connected to one end of the fixed plate (22), the first connecting rod (91) is vertically arranged, the push plate (92) is fixedly connected to one end of the first connecting rod (91) away from the fixed plate (22), and one side of the push plate (92) is arranged as an inclined surface.

8. The lifting device for the lid (2) of a paracetamol reaction kettle according to claim 4, characterized in that: A support rod (111) is rotatably connected to the upper surface of the first support plate (11), and the upper end of the support rod (111) is fixedly connected to the arc plate (3). A bearing plate (112) is fixedly provided on the first support plate (11), and a transmission rod (113) is provided on the bearing plate (112). The transmission rod (113) passes through the bearing plate (112) and is rotatably connected to the bearing plate (112). The rotating assembly (7) comprises a first bevel gear (71) and a second bevel gear (72). The first bevel gear (71) is fixedly connected to one end of the transmission rod (113), and the second bevel gear (72) is fixedly provided on the support rod (111). The second bevel gear (72) is meshed with the first bevel gear (71). A power assembly (13) for providing power for the rotation of the transmission rod (113) is provided at the first support plate (11).

9. The lifting device for the lid (2) of a paracetamol reactor according to claim 8, characterized in that: A displacement plate (14) is arranged on the threaded sleeve (51) directly above the first support plate (11); the threaded sleeve (51) penetrates the displacement plate (14) and is rotatably connected to the displacement plate (14); a guide assembly (15) for guiding the displacement plate (14) to move is arranged on the kettle body (1); a second connecting rod (16) is fixedly arranged on the lower surface of the displacement plate (14); the power assembly (13) comprises a rack (131) and a gear (132); the rack (131) and the bottom end of the second connecting rod (16) are fixedly connected; the gear (132) and the end of the transmission rod (113) away from the first bevel gear (71) are fixedly connected; the gear (132) and the rack (131) are meshed and matched.

10. A lifting device for a acetaminophen reaction kettle cover (2) according to claim 9, characterized in that: The guide assembly (15) comprises a guide rail (151) and a slider (152); the guide rail (151) is fixedly connected to the side wall of the kettle body (1); the slider (152) is arranged in the guide rail (151); the slider (152) and the guide rail (151) are slidably connected; and the side of the slider (152) facing the outside of the guide rail (151) is fixedly connected to the displacement plate (14).

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