A high-density fermentation equipment for nicotinamide production

Abstract

The present invention discloses a high-density fermentation equipment for nicotinamide production, including a separation mechanism, the separation mechanism is used to separate liquid after nicotinamide is prepared, and a support leg arranged at the bottom of the separation mechanism, a scrubbing mechanism, the scrubbing mechanism is used to clean the inner wall of the equipment, a stirring mechanism, the stirring mechanism is used to heat and stir the nicotinamide during fermentation, the top of the support leg is fixedly connected to the bottom of the separation mechanism, the top of the separation mechanism is fixedly connected to the bottom of the scrubbing mechanism, and the side wall of the scrubbing mechanism is fixedly connected to the inner wall of the stirring mechanism. The present invention relates to the field of nicotinamide fermentation technology; when nicotinamide is fermented and crystallized, the inner wall of the rotating sealing plate can be scrubbed by the cooperation of a driving motor, a transmission shaft, a rotating plate, a second electric push rod, a second connecting ball and a cleaning soft brush, without the need for staff to scrub it, and at the same time, the nicotinamide crystal can be driven to rotate and the fermentation waste liquid can be thrown out by centrifugal force.

Description

Technical Field

[0001] The invention relates to the technical field of nicotinamide fermentation, in particular to high-density fermentation equipment for nicotinamide production. Background Art

[0002] Nicotinamide, also known as nicotinamide, is an amide compound of nicotinic acid. It is a white crystalline powder; odorless or almost odorless, bitter in taste; slightly hygroscopic. It is easily soluble in water or ethanol, and soluble in glycerol. It is mainly used clinically to prevent and treat pellagra combined with stomatitis, glossitis, sick sinus syndrome, atrioventricular block and other problems. Nicotinamide is made by oxidizing β-methylpyridine to nicotinic acid with air, and then reacting the latter with ammonium hydroxide and heating to dehydrate it.

[0003] The existing high-density fermentation equipment for nicotinamide production has a relatively simple structure. During the existing nicotinamide fermentation, professional equipment is required to separate nicotinamide crystals from nicotinamide fermentation waste liquid, and the process is complicated. At the same time, nicotinamide crystals are easily condensed inside the fermentation equipment, and the staff need to clean them manually, which greatly increases the labor intensity of the staff.

[0004] To this end, the present invention provides a high-density fermentation equipment for nicotinamide production to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a high-density fermentation equipment for nicotinamide production, which solves the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical scheme: a high-density fermentation equipment for nicotinamide production, comprising:

[0007] A separation mechanism, which is used to separate the liquid after the nicotinamide is prepared, and a support leg arranged at the bottom of the separation mechanism;

[0008] A brushing mechanism, the brushing mechanism is used to clean the inner wall of the equipment;

[0009] A stirring mechanism, which is used to heat and stir nicotinamide during fermentation;

[0010] The top of the support leg is fixedly connected to the bottom of the separation mechanism, the top of the separation mechanism is fixedly connected to the bottom of the scrubbing mechanism, and the side wall of the scrubbing mechanism is fixedly connected to the inner wall of the stirring mechanism;

[0011] Wherein, the separation mechanism comprises:

[0012] An extraction cylinder, and a feed pipe and a liquid feed pipe arranged on the top of the extraction cylinder;

[0013] A discharge pipe, which is used to discharge the fermented nicotinamide;

[0014] The top of the extraction cylinder is connected to the bottom of the feed pipe, the top of the extraction cylinder is connected to the bottom of the liquid inlet pipe, and the top of the discharge pipe is connected to the bottom of the extraction cylinder;

[0015] The separation mechanism also includes an annular slide rail, the bottom of the inner wall of the extraction cylinder is fixedly connected to the bottom of the annular slide rail, the annular slide rail is slidably connected to a rotating sealing plate through an electronic slider, the inner wall of the extraction cylinder is fixedly connected to a separation cylinder, the inner wall of the separation cylinder is provided with a filter hole, the feed pipe is provided with a first solenoid valve, the liquid inlet pipe is provided with a second solenoid valve, the discharge pipe is provided with a third solenoid valve, and the bottom of the extraction cylinder is connected to a discharge pipe.

[0016] Preferably, the inner wall of the separation cylinder is slidably connected to the side wall of the rotating sealing plate, and the top of the rotating sealing plate is rotatably connected to the top of the inner wall of the extraction cylinder.

[0017] Preferably: the brushing mechanism includes a driving motor, the bottom of the driving motor is fixedly connected to the top of the extraction cylinder, the output end of the driving motor is fixedly connected to a transmission shaft, the side wall of the transmission shaft is fixedly connected to a rotating plate, the bottom of the rotating plate is fixedly connected to a rotating rod, the side wall of the rotating rod is fixedly connected to an electric slide rail, the electric slide rail is slidably connected to a first electric push rod through an electronic slider, the bottom of the first electric push rod is fixedly connected to a first connecting ball, the side wall of the rotating rod is fixedly connected to a second electric push rod, the end of the second electric push rod away from the rotating rod is fixedly connected to a second connecting ball, and the end of the second connecting ball away from the second electric push rod is rotatably connected to a cleaning soft brush.

[0018] Preferably: the first electric push rod is movably connected to the second electric push rod via a first connecting ball, the side wall of the cleaning soft brush is slidably connected to the inner wall of the rotating sealing plate, and the side wall of the cleaning soft brush is slidably connected to the inner wall of the separation cylinder.

[0019] Preferably: the stirring mechanism includes a fixed block, the top of the fixed block is fixedly connected to the bottom of the rotating plate, the side wall of the fixed block is fixedly connected to a sliding round rod, the sliding round rod is fixedly connected to a support plate on the side away from the fixed block, the side wall of the fixed block is fixedly connected to a limiting spring, the limiting spring is fixedly connected to a sliding block on the side away from the fixed block, the sliding block is fixedly connected to an annular cleaning brush on the side away from the fixed block, the bottom of the sliding block is fixedly connected to an electric rotating rod, the side wall of the electric rotating rod is fixedly connected to a telescopic cylinder, the bottom of the telescopic cylinder is fixedly connected to a float, and the side wall of the electric rotating rod is fixedly connected to a stirring blade.

[0020] Preferably, the side wall of the stirring blade is rotatably connected to the inner wall of the telescopic cylinder, the top of the sliding block is slidably connected to the bottom of the rotating plate, the side wall of the sliding round rod passes through the sliding block, and the side wall of the sliding round rod is slidably connected to the inner wall of the sliding block.

[0021] The present invention provides a high-density fermentation device for nicotinamide production. Compared with the prior art, it has the following beneficial effects:

[0022] (1) The high-density fermentation equipment for nicotinamide production can stir the mixed liquid after the nicotinamide fermentation is inside the extraction cylinder through the cooperation of the driving motor, the transmission shaft, the rotating plate, the sliding block, the electric rotating rod, the telescopic cylinder and the stirring blades to improve the nicotinamide fermentation efficiency. At the same time, the mixed liquid can be heated to further improve its fermentation efficiency.

[0023] (2) The high-density fermentation equipment for nicotinamide production can clean the inner wall of the rotating sealing plate by driving the motor, the transmission shaft, the rotating plate, the second electric push rod, the second connecting ball and the cleaning soft brush after the nicotinamide fermentation is completed and crystallized. The staff does not need to manually clean it. At the same time, the nicotinamide crystals can be driven to rotate and the fermentation waste liquid can be thrown out by centrifugal force. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a high-density fermentation device for producing nicotinamide of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the high-density fermentation equipment for nicotinamide production of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the separation mechanism of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the scrubbing mechanism of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the stirring mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the position structure of the sliding round rod of the present invention.

[0030] In the figure: 1, support leg; 2, separation mechanism; 3, brushing mechanism; 4, stirring mechanism; 20, extraction cylinder; 21, feed pipe; 211, first solenoid valve; 22, liquid inlet pipe; 221, second solenoid valve; 23, rotating sealing plate; 24, annular slide rail; 25, separation cylinder; 26, filter hole; 27, drain pipe; 28, discharge pipe; 29, third solenoid valve; 30, drive motor; 31, transmission shaft; 32, rotating plate; 33, rotating rod; 34, electric slide rail; 35, first electric push rod; 36, first connecting ball; 37, second electric push rod; 38, second connecting ball; 39, cleaning soft brush; 40, fixed block; 41, sliding round rod; 42, sliding block; 43, support plate; 44, limit spring; 45, annular cleaning brush; 46, electric rotating rod; 47, telescopic cylinder; 48, float; 49, stirring blade. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] See also Figure 1-Figure 3 , a high-density fermentation equipment for nicotinamide production, comprising:

[0034] A separation mechanism 2, which is used to separate the liquid after the nicotinamide is prepared, and a support leg 1 arranged at the bottom of the separation mechanism 2;

[0035] A brushing mechanism 3, the brushing mechanism 3 is used to clean the inner wall of the equipment;

[0036] A stirring mechanism 4, which is used to heat and stir the nicotinamide during fermentation;

[0037] The top of the support leg 1 is fixedly connected to the bottom of the separation mechanism 2, the top of the separation mechanism 2 is fixedly connected to the bottom of the scrubbing mechanism 3, and the side wall of the scrubbing mechanism 3 is fixedly connected to the inner wall of the stirring mechanism 4;

[0038] Wherein, the separation mechanism 2 comprises:

[0039] An extraction cylinder 20, and a feed pipe 21 and a liquid feed pipe 22 disposed on the top of the extraction cylinder 20;

[0040] A discharge pipe 28, which is used to discharge the fermented nicotinamide;

[0041] The top of the extraction cylinder 20 is connected to the bottom of the feed pipe 21, the top of the extraction cylinder 20 is connected to the bottom of the liquid inlet pipe 22, and the top of the discharge pipe 28 is connected to the bottom of the extraction cylinder 20;

[0042] The separation mechanism 2 further includes an annular slide rail 24, the bottom of the inner wall of the extraction cylinder 20 is fixedly connected to the bottom of the annular slide rail 24, the annular slide rail 24 is slidably connected to a rotating sealing plate 23 through an electronic slider, the inner wall of the extraction cylinder 20 is fixedly connected to a separation cylinder 25, the inner wall of the separation cylinder 25 is provided with a filter hole 26, the feed pipe 21 is provided with a first solenoid valve 211, the liquid feed pipe 22 is provided with a second solenoid valve 221, the discharge pipe 28 is provided with a third solenoid valve 29, and the bottom of the extraction cylinder 20 is connected to a discharge pipe 27;

[0043] The inner wall of the separation cylinder 25 is slidably connected to the side wall of the rotating sealing plate 23, and the top of the rotating sealing plate 23 is rotatably connected to the top of the inner wall of the extraction cylinder 20;

[0044] It should be noted that, after the fermentation of nicotinamide is completed, the extraction cylinder 20 is started, the extraction cylinder 20 extracts and crystallizes nicotinamide in the fermentation liquid, the annular slide rail 24 is started, the annular slide rail 24 drives the rotating sealing plate 23 to rotate, so that the sealing plate 23 is away from the filter hole 26, and the fermentation waste liquid is discharged through the filter hole 26 and the drain pipe 27, and the discharge of nicotinamide crystals can be avoided at the same time. The driving motor 30 drives the stirring blade 49 to rotate and drives the nicotinamide crystals to rotate, and the extraction waste liquid attached to the surface of the nicotinamide crystals is thrown out by centrifugal force, and the third solenoid valve 29 is started, and the nicotinamide crystals are discharged through the discharge pipe 28.

[0045] Embodiment 2

[0046] See also Figure 4 , this embodiment provides a technical solution on the basis of the first embodiment: the scrubbing mechanism 3 includes a driving motor 30, the bottom of the driving motor 30 is fixedly connected to the top of the extraction cylinder 20, the output end of the driving motor 30 is fixedly connected to a transmission shaft 31, the side wall of the transmission shaft 31 is fixedly connected to a rotating plate 32, the bottom of the rotating plate 32 is fixedly connected to a rotating rod 33, the side wall of the rotating rod 33 is fixedly connected to an electric slide rail 34, the electric slide rail 34 is slidably connected to a first electric push rod 35 through an electronic slider, the bottom of the first electric push rod 35 is fixedly connected to a first connecting ball 36, the side wall of the rotating rod 33 is fixedly connected to a second electric push rod 37, the end of the second electric push rod 37 away from the rotating rod 33 is fixedly connected to a second connecting ball 38, the end of the second connecting ball 38 away from the second electric push rod 37 is rotatably connected to a cleaning soft brush 39, the first electric push rod 35 and the second electric push rod 37 are movably connected through the first connecting ball 36, the side wall of the cleaning soft brush 39 is slidably connected to the inner wall of the rotating sealing plate 23, and the side wall of the cleaning soft brush 39 is slidably connected to the inner wall of the separation cylinder 25;

[0047] It should be noted that when the drive motor 30 rotates, the drive motor 30 drives the cleaning soft brush 39 to rotate through the transmission shaft 31, the rotating plate 32, the rotating rod 33, the second electric push rod 37 and the second connecting ball 38 to scrub the inner wall of the extraction cylinder 20, so as to prevent the fermentation liquid from solidifying on the inner wall of the rotating sealing plate 23 when condensing into nicotinamide crystals, requiring the staff to manually scrub it later, thereby reducing the labor intensity of the staff. At the same time, through the cooperation of the electric slide rail 34, the first electric push rod 35 and the first connecting ball 36, the cleaning soft brush 39 can scrub the inner wall of the extraction cylinder 20 in all directions, thereby expanding the cleaning range of the cleaning soft brush 39.

[0048] Embodiment 3

[0049] See also Figure 5-Figure 6 , this embodiment provides a technical solution based on the first embodiment: the stirring mechanism 4 includes a fixed block 40, the top of the fixed block 40 is fixedly connected to the bottom of the rotating plate 32, the side wall of the fixed block 40 is fixedly connected to a sliding rod 41, the side of the sliding rod 41 away from the fixed block 40 is fixedly connected to a support plate 43, the side wall of the fixed block 40 is fixedly connected to a limiting spring 44, the side of the limiting spring 44 away from the fixed block 40 is fixedly connected to a sliding block 42, the side of the sliding block 42 away from the fixed block 40 is fixedly connected to an annular cleaning brush 45, the bottom of the sliding block 42 is fixedly connected to an electric rotating rod 46, the side wall of the electric rotating rod 46 is fixedly connected to a telescopic cylinder 47, the bottom of the telescopic cylinder 47 is fixedly connected to a floating cylinder 48, the side wall of the electric rotating rod 46 is fixedly connected to a stirring blade 49, the side wall of the stirring blade 49 is rotatably connected to the inner wall of the telescopic cylinder 47, the top of the sliding block 42 is slidably connected to the bottom of the rotating plate 32, the side wall of the sliding rod 41 penetrates the sliding block 42, and the side wall of the sliding rod 41 is slidably connected to the inner wall of the sliding block 42;

[0050] It should be noted that, the first solenoid valve 211 and the second solenoid valve 221 are opened to transport the bacteria and the nutrient solution to the inside of the extraction cylinder 20 through the feed pipe 21 and the liquid inlet pipe 22 respectively, and the drive motor 30 is started. The drive motor 30 drives the rotating plate 32 to rotate through the transmission shaft 31. When the rotating plate 32 rotates, the sliding block 42 is driven to move away from the fixed block 40 through centrifugal force. The limit spring 44 elastically drives the sliding block 42 to reset. When the sliding block 42 moves, it drives the annular cleaning brush 45 to move and scrub the side wall of the sliding rod 41 to prevent nicotinamide from adhering to the side wall of the sliding rod 41 during fermentation and affecting the sliding of the sliding block 42. The electric rotating rod 46 is started, and the electric rotating rod 46 drives the stirring blade 49 to rotate to stir the fermentation liquid, thereby improving its fermentation efficiency. The cooperation between the buoy 48 and the telescopic cylinder 47 makes the telescopic cylinder 47 always float on the water surface. When the stirring blade 49 rotates, it generates heat by friction with the inside of the telescopic cylinder 47 to heat the fermentation liquid, thereby further improving the fermentation efficiency.

[0051] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0052] When working, the first solenoid valve 211 and the second solenoid valve 221 are opened to transport the bacteria and the nutrient solution to the inside of the extraction cylinder 20 through the feed pipe 21 and the liquid inlet pipe 22 respectively, and the driving motor 30 is started. The driving motor 30 drives the rotating plate 32 to rotate through the transmission shaft 31. When the rotating plate 32 rotates, the sliding block 42 is driven to move away from the fixed block 40 through the centrifugal force. The limit spring 44 elastically drives the sliding block 42 to reset. When the sliding block 42 moves, it drives the annular cleaning brush 45 to move and scrub the side wall of the sliding rod 41 to prevent nicotinamide from adhering to the side wall of the sliding rod 41 during fermentation and affecting the sliding of the sliding block 42. The electric rotating rod 46 is started, and the electric rotating rod 46 drives the stirring blade 49 to rotate to stir the fermentation liquid, thereby improving its fermentation efficiency. Through the cooperation of the buoy 48 and the telescopic cylinder 47, the telescopic cylinder 47 is always floated on the water surface. When the stirring blade 49 rotates, it generates heat by friction with the inside of the telescopic cylinder 47 to heat the fermentation liquid, thereby further improving the fermentation efficiency.

[0053] When the fermentation of nicotinamide is completed, the extraction cylinder 20 is started to extract and crystallize the nicotinamide in the fermentation liquid, and the annular slide rail 24 is started. The annular slide rail 24 drives the rotating sealing plate 23 to rotate, so that the sealing plate 23 is away from the filter hole 26, and the fermentation waste liquid is discharged through the filter hole 26 and the drain pipe 27, and the discharge of nicotinamide crystals can be avoided at the same time. The driving motor 30 drives the stirring blade 49 to rotate and drives the nicotinamide crystals to rotate, and the extraction waste liquid attached to the surface of the nicotinamide crystals is thrown out by centrifugal force, and the third solenoid valve 29 is started, and the nicotinamide crystals are discharged through the discharge pipe 28;

[0054] When the driving motor 30 rotates, the driving motor 30 drives the cleaning soft brush 39 to rotate and scrub the inner wall of the extraction cylinder 20 through the transmission shaft 31, the rotating plate 32, the rotating rod 33, the second electric push rod 37 and the second connecting ball 38, so as to prevent the fermentation liquid from solidifying on the inner wall of the rotating sealing plate 23 when condensing into nicotinamide crystals, and requiring the staff to manually scrub it later, thereby reducing the labor intensity of the staff. At the same time, through the cooperation of the electric slide rail 34, the first electric push rod 35 and the first connecting ball 36, the cleaning soft brush 39 can scrub the inner wall of the extraction cylinder 20 in all directions, thereby expanding the cleaning range of the cleaning soft brush 39.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-density fermentation equipment for nicotinamide production, characterized in that: include: A separation mechanism (2), the separation mechanism (2) being used to separate the liquid after the nicotinamide is prepared, and a support leg (1) arranged at the bottom of the separation mechanism (2); A scrubbing mechanism (3), the scrubbing mechanism (3) being used to clean the inner wall of the equipment; A stirring mechanism (4), the stirring mechanism (4) is used to heat and stir nicotinamide during fermentation; The top of the support leg (1) is fixedly connected to the bottom of the separation mechanism (2), the top of the separation mechanism (2) is fixedly connected to the bottom of the scrubbing mechanism (3), and the side wall of the scrubbing mechanism (3) is fixedly connected to the inner wall of the stirring mechanism (4); Wherein, the separation mechanism (2) comprises: An extraction cylinder (20), and a feed pipe (21) and a liquid feed pipe (22) arranged at the top of the extraction cylinder (20); A discharge pipe (28), the discharge pipe (28) is used to discharge the fermented nicotinamide; The top of the extraction cylinder (20) is connected to the bottom of the feed pipe (21), the top of the extraction cylinder (20) is connected to the bottom of the liquid inlet pipe (22), and the top of the discharge pipe (28) is connected to the bottom of the extraction cylinder (20); The separation mechanism (2) further comprises an annular slide rail (24), the bottom of the inner wall of the extraction cylinder (20) being fixedly connected to the bottom of the annular slide rail (24), the annular slide rail (24) being slidably connected to a rotating sealing plate (23) via an electronic slider, the inner wall of the extraction cylinder (20) being fixedly connected to a separation cylinder (25), the inner wall of the separation cylinder (25) being provided with a filtering hole (26), the inner wall of the separation cylinder (25) being slidably connected to the side wall of the rotating sealing plate (23), the top of the rotating sealing plate (23) being rotatably connected to the top of the inner wall of the extraction cylinder (20), the feed pipe (21) being provided with a first solenoid valve (211), the liquid feed pipe (22) being provided with a second solenoid valve (221), the discharge pipe (28) being provided with a third solenoid valve (29), and the bottom of the extraction cylinder (20) being connected to a discharge pipe (27); The scrubbing mechanism (3) comprises a driving motor (30), the bottom of the driving motor (30) being fixedly connected to the top of the extraction cylinder (20), the output end of the driving motor (30) being fixedly connected to a transmission shaft (31), the side wall of the transmission shaft (31) being fixedly connected to a rotating plate (32), the bottom of the rotating plate (32) being fixedly connected to a rotating rod (33), the side wall of the rotating rod (33) being fixedly connected to an electric slide rail (34), the electric slide rail (34) being slidably connected to a first electric push rod (35) via an electronic slider, the bottom of the first electric push rod (35) being fixedly connected to a first connecting ball ( 36), a second electric push rod (37) is fixedly connected to the side wall of the rotating rod (33), a second connecting ball (38) is fixedly connected to the end of the second electric push rod (37) away from the rotating rod (33), and a cleaning soft brush (39) is rotatably connected to the end of the second connecting ball (38) away from the second electric push rod (37); the first electric push rod (35) and the second electric push rod (37) are movably connected through the first connecting ball (36), the side wall of the cleaning soft brush (39) is slidably connected to the inner wall of the rotating sealing plate (23), and the side wall of the cleaning soft brush (39) is slidably connected to the inner wall of the separation cylinder (25); The stirring mechanism (4) comprises a fixed block (40), the top of the fixed block (40) being fixedly connected to the bottom of the rotating plate (32), the side wall of the fixed block (40) being fixedly connected to a sliding round rod (41), the side of the sliding round rod (41) away from the fixed block (40) being fixedly connected to a support plate (43), the side wall of the fixed block (40) being fixedly connected to a limit spring (44), the side of the limit spring (44) away from the fixed block (40) being fixedly connected to a sliding block (42), the side of the sliding block (42) away from the fixed block (40) being fixedly connected to an annular cleaning brush (45), the bottom of the sliding block (42) being fixedly connected to an electric rotating rod (46), the side wall of the electric rotating rod (46) being fixedly connected to a telescopic cylinder (47), the bottom of the telescopic cylinder (47) being fixedly connected to a floating cylinder (48), and the side wall of the electric rotating rod (46) being fixedly connected to a stirring blade (49).

2. The high-density fermentation equipment for nicotinamide production according to claim 1, characterized in that: The side wall of the stirring blade (49) is rotatably connected to the inner wall of the telescopic cylinder (47), the top of the sliding block (42) is slidably connected to the bottom of the rotating plate (32), the side wall of the sliding round rod (41) penetrates the sliding block (42), and the side wall of the sliding round rod (41) is slidably connected to the inner wall of the sliding block (42).

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