CN110141444B - Waste liquid collection device for internal medicine nursing - Google Patents

Abstract

The invention provides a waste liquid collection device for medical nursing, which effectively solves the problem of inconvenient collection of waste liquid in medical nursing. Including a shell, a filter tank and a stirring tank are fixed in the shell, an inlet is opened on the shell, a lifting screw is fixed in the filter tank, a one-way filter box is sleeved on the lifting screw, and a connecting lifting screw is installed on the upper end of the filter tank The drive shaft is sleeved with a half gear, the two ends of the half gear are respectively meshed with small one-way gears, the small one-way gear is equipped with a toggle lever, and a sterilization box is installed on the side of the small one-way gear. A point switch is installed on the box, the filter tank is connected to the water pump placed outside the filter tank through the output pipe, an external gear is installed on the upper end of the stirring tank, and a plurality of planetary pinions are meshed inside the external gear. The upper end of the gear is coaxially connected with a one-way pulley, and the one-way pulley is connected with the transmission wheel, and the present invention can well ensure the safety of medical nursing in waste liquid collection.

Description

A waste liquid collection device for medical nursing

technical field

The invention relates to the technical field of medical nursing, in particular to a waste liquid collection device for medical nursing.

Background technique

Internal medicine includes respiratory medicine, gastroenterology, cardiovascular medicine, neurology, oncology, endocrinology, hematology, infectious diseases, pediatrics and so on.

In the process of internal medicine nursing in the hospital, there are often waste liquids caused by many patients' vomit, saliva, blood, wounds, etc. These waste liquids are usually thrown directly into the trash can, but due to the large number of patients in the hospital, so The generated waste liquid will contain bacteria, germs, and even some infectious bacteria. If these germs are not treated in time, they will bring infectious diseases to the people in the hospital, so it is necessary to collect and treat the waste liquid regularly.

Because the current treatment method is to directly throw it into the trash can without further treatment, after the waste liquid is finally transported away by the garbage truck, the bacteria still cannot be cured.

Therefore, the present invention provides a device for collecting and treating the waste fluid produced by medical nursing.

SUMMARY OF THE INVENTION

In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a waste liquid collection device for internal medicine nursing, which effectively solves the problems of inconvenient collection and untimely treatment of waste liquid in the existing internal medicine nursing department.

A waste liquid collection device for medical nursing, which is characterized in that it includes a waste liquid collection vehicle, a universal wheel is installed at the lower end of the waste liquid collection vehicle, a push handle is installed at the upper end of the waste liquid collection vehicle, and the waste liquid collection vehicle includes a casing, A door that can be opened and closed is installed on the shell, a filter tank and a stirring tank are fixed in the shell, an inlet connecting the upper end of the filter tank is opened on the shell, a lifting screw is coaxially fixed in the filter tank, and the lifting screw is sleeved There is a one-way filter box, so that the liquid can only pass in one direction. The upper end of the filter tank is installed with a drive shaft connected to the lifting screw, the drive shaft is connected with a drive motor, and a half gear is sleeved on the drive shaft. A small one-way gear is meshed at the ends respectively, and a toggle rod is installed on the small one-way gear. A disinfection box is installed on the side of the small one-way gear above the filter tank, and an inching switch is installed on the disinfection box. The output pipe is connected to the water pump placed outside the filter tank, and the water pump is connected to the stirring tank through the input pipe. An external gear is installed on the upper end of the stirring tank, and the external gear is meshed with a plurality of planetary pinions. The upper end of the sun gear is coaxially connected with a one-way pulley, and the one-way pulley is connected to the drive wheel on the drive shaft through the first belt.

Preferably, the one-way filter box includes a lower filter mesh shell sleeved on the lifting screw, a sealing plate is installed on the lower filter mesh shell, and a plurality of one-way valves uniformly distributed around the circumference are embedded on the sealing plate. , a plurality of vertical limit rods are fixed on the outer circumferential surface of the one-way filter box.

Preferably, the bottoms of the filter tank and the stirring tank are tapered, and a cleaning device is installed at the bottom end of the lifting screw, and the cleaning device includes a plurality of cleaning plates that fit with the conical surface of the bottom of the filter tank, The cleaning plate is fixed on the lower end of the lift screw through the bending rod.

Preferably, a sterilization disk is installed between the one-way pulley and the external gear, a plurality of liquid discharge ports are opened at the bottom of the sterilization disk, and a sealing baffle is installed on the planetary pinion.

Preferably, the bottom of the filter tank is connected to the slag discharge chamber through a first solenoid valve, a first heating chamber is installed below the slag discharge chamber, and the slag discharge chamber and the first heating chamber are separated by a detachable liquid leakage plate, A plurality of first heating pipes are installed at the bottom of the first heating chamber.

Preferably, a second heating chamber is installed on the right side of the slag discharge chamber and the first heating chamber and below the stirring tank, the stirring tank is connected to the second heating chamber through a second solenoid valve, and a plurality of a second heating tube.

Preferably, an exhaust valve is installed on the slag discharge chamber and the second heating chamber, respectively, and an exhaust fan is installed on the casing.

Preferably, an extrusion device is installed in the slag discharge chamber, and the extrusion device includes an extrusion plate that moves up and down, a discharge port matching the first solenoid valve is opened in the middle of the extrusion plate, and the upper end of the extrusion plate is The sliding rod passing through the upper end of the slag discharge chamber is connected with a gear frame, a fixed incomplete gear is meshed in the gear frame, the incomplete gear is coaxially connected with a left bevel gear, the left bevel gear is meshed with a right bevel gear, and the right bevel gear is coaxially connected A support rod is sleeved, the upper end of the support rod is provided with an internal threaded hole, the upper end of the support rod is installed with a support screw that can move up and down, and the lower end of the support screw is provided with an external thread matching the internal threaded hole, and the support screw jacket A matching first pulley is provided, the first pulley is connected to the second pulley via the second belt, and the second pulley is sleeved on the drive shaft.

The invention realizes the separation of waste liquid and waste through the one-way filter box in the filter tank, and performs preliminary disinfection. After the waste liquid and the disinfection liquid are fully mixed in the stirring tank for secondary disinfection, the waste can be removed from the slag discharge chamber. The heating chamber and the second heating chamber sterilize the waste liquid again. The present invention has good collection effect on waste liquid, high collection efficiency and thorough disinfection, which can well ensure the safety of medical nursing in waste liquid collection.

Description of drawings

FIG. 1 is a schematic perspective view of the present invention.

Figure 2 is a schematic side view of the present invention.

FIG. 3 is a cross-sectional view at A-A in FIG. 2 of the present invention.

Fig. 4 is an isometric view of the position A-A in Fig. 3 of the present invention.

FIG. 5 is a schematic diagram of an interior perspective view of the casing of the present invention.

Figure 6 is a schematic diagram of the installation of the sterilization tray of the present invention.

FIG. 7 is a schematic perspective view of the extrusion device of the present invention.

FIG. 8 is a three-dimensional schematic view of the filter screen housing of the present invention.

Detailed ways

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to FIGS. 1 to 8 . The structural contents mentioned in the following embodiments are all referenced to the accompanying drawings.

Embodiment 1, the present invention is a waste liquid collection device for medical nursing, including a waste liquid collection vehicle 1, a universal wheel 2 is installed at the lower end of the waste liquid collection vehicle 1, and the universal wheel 2 has its own braking device, A push handle 3 is installed and fixed at the rear end of the waste liquid collection vehicle 1 , and the waste liquid collection vehicle 1 includes a door 5 which is opened and closed on one side with a cavity inside, and a filter tank 6 and a stirring tank are fixed in the casing 4 7. An inlet 8 is provided on the casing 4, the inlet 8 is connected to the upper end of the filter tank 6, an inlet cover can be installed on the inlet 8, and a lifting screw 9 is fixed vertically and coaxially in the middle of the filter tank 6. A one-way filter box 80 is set on the upper sleeve, and the one-way filter box 80 is matched with the lifting screw 9, so that the one-way filter box 80 can move up and down on the lifting screw 9, and the effect achieved by the one-way filter box 80 is: The waste liquid inside can only pass in one direction. A drive shaft 10 connected to the lifting screw 9 is installed on the upper end of the filter tank 6. The battery needs to be charged regularly. A sector gear, that is, an incomplete gear, is sleeved on the drive shaft 10. Small one-way wheels 13 are respectively fixed at both ends of the sector gear. When the driving motor 11 rotates forward, it can drive the fan-shaped rotation. When the fan-shaped gear rotates, it can mesh with the small one-way wheel 13 respectively. At this time, the small one-way wheel 13 can rotate normally, and the small one-way wheel 13 There is a toggle lever 14 installed on it, and the toggle lever 14 rotates together with the rotation of the small one-way wheel 13. When the toggle lever 14 rotates, it can touch the point switch 16 on the disinfection box 15. At this time, the disinfection box 15 The disinfectant inside will be released from the disinfection box 15 into the filter tank 6, a stirring tank 7 is installed on the side of the filter tank 6, a water pump 18 is fixed between the filter tank 6 and the stirring tank 7, and the output of the filter tank 6 is The pipe 17 is connected to the water pump 18, and the water pump 18 is connected to the stirring tank 7 through the input pipe 19. An external gear 20 is installed on the upper end of the stirring tank 7. The external gear 20 is meshed with a plurality of planetary pinions 21, and the plurality of planetary pinions 21 are meshed with The common sun gear 22 is coaxially connected with a one-way pulley 23 at the upper end of the sun gear 22. The one-way pulley 23 is connected to the transmission wheel 25 through the first belt 24. The transmission wheel 25 is sleeved on the drive shaft 10. 22. A stirrer 35 is installed on the lower ends of the planetary pinion 21 and the external gear 20, and the stirrer 35 is placed in the stirring tank 7.

In the second embodiment, on the basis of the first embodiment, the one-way filter box 80 serves the purpose of allowing the waste liquid to pass through only one end. The lower filter screen shell 26 is provided with an internal thread matching the lifting screw 9, a sealing plate 27 is installed in the lower filter screen shell 26, a groove is opened on the sealing plate 27, and a one-way valve 28 is installed in the groove, The waste liquid can only pass through the upper end from the lower end of the one-way filter box 80, and cannot flow into the lower end from the upper end. On the outer circumference of the one-way filter box 80, the one-way filter box 80 can move up and down.

Embodiment 3, on the basis of Embodiment 1, the bottoms of the filter tank 6 and the stirring tank 7 are both conical, and a cleaning device 30 is installed at the bottom end of the lifting screw 9, and the cleaning device 30 mainly cleans the filter tank 6 and The bottom of the stirring tank 7, the cleaning device 30 includes a plurality of cleaning plates 31, the cleaning plates 31 are fitted with the conical surfaces of the bottom of the filter tank 6 and the stirring tank 7, and the cleaning plates 31 are connected to the lifting screw 9 through the bending rod 321 The lower end of the screw rotates with the lifting screw 9.

In the fourth embodiment, on the basis of the first embodiment, a sterilizing disc 32 is installed between the one-way pulley 23 and the external gear 20. First, the one-way pulley 23 can only rotate in one direction. The pulley 23 is idling and does not drive. When the driving motor 11 is reversed, the one-way pulley 23 starts to have a driving force. The bottom of the sterilization tray 32 is provided with a plurality of liquid discharge ports 33. The numbers are the same, and a sealing baffle 34 is installed on the planetary pinion 21 , and the sealing baffle 34 can seal the liquid discharge port 33 .

In the fifth embodiment, on the basis of the first embodiment, the slag discharge chamber 37 is connected to the bottom of the filter tank 6 through the first solenoid valve 36, and a first heating chamber 38 is also installed below the slag discharge chamber 37. The slag discharge chamber 37 and The first heating chambers 38 are separated by a detachable liquid leakage plate 39 which is detachably connected and can clean the waste residue. A plurality of first heating pipes 40 are installed in the first heating chamber 38 .

Embodiment 6, on the basis of Embodiment 5, on the right side of the slag discharge chamber 37 and the first heating chamber 38, and a second heating chamber 41 is installed below the stirring tank 7, and the stirring tank 7 passes through the second solenoid valve 42. The second heating chamber 41 is communicated, and a plurality of second heating pipes 43 are installed at the bottom of the second heating chamber 41 .

In the seventh embodiment, on the basis of the sixth embodiment, an exhaust valve 44 is connected to the slag discharge chamber 37 and the second heating chamber 41 respectively, and an exhaust fan 45 is installed on the casing 4 .

In the eighth embodiment, on the basis of the first embodiment, a pressing device capable of moving up and down is installed in the slag discharge chamber 37, and the pressing device includes a pressing plate 46 that moves up and down, and the pressing plate 46 is placed in the slag discharge chamber 37. Inside, the movement of the extrusion plate 46 can install a slide rail on the side wall of the slag discharge chamber 37, and in the middle of the extrusion plate 46, a discharge port 47 that matches the port of the first solenoid valve 36 is opened. The upper end of the gear frame 49 is connected to a gear frame 49 through the sliding rod 48 passing through the upper end of the slag discharge chamber 37, and a fixed incomplete gear 50 is engaged in the gear frame 49. The incomplete gear 50 can only mesh with one side of the gear frame 49. When When one side is engaged, the other side is just disengaged, the incomplete gear 50 is coaxially connected with a left bevel gear 51, the left bevel gear 51 is meshed with a right bevel gear 52, and the right bevel gear 52 is coaxially sleeved with a support rod 53. The upper end of the rod 53 is provided with an internal thread hole 54, the upper end of the support rod 53 is installed with a support screw 55 that can move up and down, and the lower end of the support screw 55 is provided with an external thread 56 that matches the internal thread hole 54 to support the screw The outer casing of 55 is provided with a matching first pulley 57 , the first pulley 57 is connected to the second pulley 59 via the second belt 58 , and the second pulley 59 is also sleeved on the drive shaft 10 .

In specific use, open the inlet cover, and pour the waste liquid from the inlet 8 into the filter tank 6 of the waste liquid collection vehicle 1. In the initial position, the one-way filter box 80 is placed at the top of the filter tank 6, and the inlet 8 is connected. It is placed at the lower end of the one-way filter box 80, so the incoming waste liquid will not affect the one-way filter box 80. With the increase of the waste liquid, the waste liquid of the filter tank 6 gradually rises, and then the driving motor is turned on in the positive direction. 11;

The driving motor 11 drives the lifting screw 9 to rotate, and the lifting screw 9 drives the one-way filter box 80 to move downward under the limit of the limit rod 29, so that the one-way filter box 80 squeezes the filter can 6 The waste liquid and waste inside, (the waste liquid contains not only liquid, but also waste, including cotton balls, sand cloths, cotton swabs and other commonly used medical items), when the one-way filter box 80 squeezes the waste liquid waste, the waste liquid It flows from the one-way valve 28 of the one-way filter box 80 to the top of the one-way filter box 80. Due to the existence of the one-way valve 28, the waste liquid cannot flow back from the one-way valve 28 to the bottom of the one-way filter box 80. With the downward movement of the one-way filter box 80, the waste is collected at the bottom of the filter tank 6, and the waste liquid is placed above the one-way filter box 80. Since the wastes are all soft items, the waste can be squeezed to the filter. At the bottom of the tank 6, a contact sensor is fixed below the filter tank 6 near the output pipe 17. When the one-way filter box 80 touches the contact sensor, the water pump 18 starts to work, the first solenoid valve 36 is turned on, and the drive motor 11 Stop, the sector gear meshes with the small one-way wheel 13 and rotates, and the small one-way wheel 13 drives the toggle lever 14 to toggle the jog switch 16 of the disinfection box 15, so that the disinfectant releases the disinfectant into the filter tank 6, and the transmission wheel 25 passes through. The first belt 24 drives the one-way pulley 23 to idle, and the sun gear 22 does not rotate. A flow sensor is installed at the output pipe 17/input pipe 19, and a liquid level sensor is installed in the filter tank 6. The flow sensor and the liquid level sensor are used together , so that when the waste liquid in the filter tank 6 is pumped to the stirring tank 6, the water pump 18 stops working, the first solenoid valve 36 is closed, the driving motor 11 starts to reverse, the waste enters the slag discharge chamber 37, and the waste liquid enters the stirring tank 6. , the one-way filter box 80 is reversed, the small one-way wheel 13 meshed by the sector gear idling, does not drive the wave rod 14 to rotate, the transmission wheel 25 drives the one-way pulley 23 to rotate, the one-way pulley 23 drives the sun gear 22 rotates, the planetary pinion rotates 21 rotates and revolves, the external gear 20 is fixed, and drives the disinfection disc 32 to rotate. In the initial position, the sealing baffle 34 seals the liquid discharge port 33, and the disinfection disc 32 is sleeved between the sun gear 22 and the one-way pulley 23. When the rotating shaft rotates, the sterilizing disc 32 does not rotate, which is equivalent to a sleeve, then when the planetary pinion 21 rotates, the sealing baffle 34 is separated from the liquid discharge port 33 and the sterilizing liquid will flow out into the stirring tank 7 , the liquid discharge port 33 is intermittent leakage, and the agitator 35 continuously stirs the waste liquid and the disinfectant in the stirring tank 7. When the driving motor 11 stops, in order to ensure that the sealing baffle 34 blocks the liquid discharge port 33, in a single A handle is provided above the pulley 23 that passes through the casing 4, and the sun gear 22 can be rotated by rotating the handle in the opposite direction, so that the planetary pinion 21 can be rotated to seal the liquid discharge port 33. In addition, it can be placed at the position 7 of the stirring tank. The outer shell 4 is set to be transparent to observe whether the liquid discharge port 33 is leaking. At the bottom of the filter tank 6 and the stirring tank 7, a cleaning plate 31 is installed to clean the bottom of the filter tank 6 and the stirring tank 7. sun gear 2 A time controller is installed below the 2 to set the rotation time of the sun gear 22, for example, 5 minutes. When the 5 minutes are over, the drive motor 11 stops, the second solenoid valve 42 is opened, and the second solenoid valve 42 and stirring A flow sensor and a depth sensor are installed in the tank 7 respectively. After the waste liquid in the stirring tank 7 has flowed out, the second solenoid valve 42 is closed.

The waste enters the slag discharge chamber 37 from the first solenoid valve 36. When the driving motor 11 rotates forwardly, the second pulley 59 drives the first pulley 57 to rotate, and the support screw 55 moves upward on the first pulley 57. When the driving motor 11 stops , the support screw 55 stops moving, and the support screw 55 is still in the second pulley 59 .

When the driving motor 11 is reversed, the second pulley 59 drives the support screw 55 to move downward. When the external thread 56 of the support rod 53 matches the internal threaded hole 54, it gradually cooperates with the support rod 53, and finally drives the support rod 53 to rotate. , the support rod 53 drives the right bevel gear 52 to rotate, the left bevel gear 51 changes direction and drives the incomplete gear 50 to rotate, the incomplete gear 50 drives the gear frame 49 to reciprocate, and finally drives the extrusion plate 46 to squeeze the waste, so that The waste liquid flows into the first heating chamber 38 from the liquid leakage plate 39 , the waste can enter the slag discharge chamber 37 from the discharge port 47 , and finally the waste is cleaned out from the detachable liquid leakage plate 39 .

The waste liquid is sterilized here at high temperature in the first heating chamber 38 and the second heating chamber 41 , and the water vapor generated by the high temperature is discharged into the casing 4 through the exhaust valve 44 , and finally discharged through the exhaust fan 45 at the rear end of the casing 4 .

The last thing to be explained in the present invention is that the time controller, flow sensor, liquid level sensor, exhaust fan, etc. used are all connected to the battery, and gears, pulleys, gear frames, rotating shafts, and incomplete gears are commonly used by required mounting plates, bolts, etc. Component installation and connection is a conventional installation method for those skilled in the art.

The invention realizes the separation of waste liquid and waste through the one-way filter box in the filter tank, and performs preliminary disinfection. After the waste liquid and the disinfection liquid are fully mixed in the stirring tank for secondary disinfection, the waste can be removed from the slag discharge chamber. The heating chamber and the second heating chamber sterilize the waste liquid again. The present invention has good collection effect on waste liquid, high collection efficiency and thorough disinfection, which can well ensure the safety of medical nursing in waste liquid collection.

Claims (8)

1. A waste liquid collection device for medical nursing, characterized in that it comprises a waste liquid collection vehicle (1), the lower end of the waste liquid collection vehicle (1) is provided with a universal wheel (2), and the upper end of the waste liquid collection vehicle (1) is provided with a universal wheel (2). A push handle (3) is installed, the waste liquid collection vehicle (1) includes a casing (4), a door (5) that can be opened and closed is installed on the casing (4), and a filter is fixed in the casing (4). The tank (6) and the stirring tank (7) are provided with an inlet (8) connected to the upper end of the filter tank (6) on the shell (4), and a lifting screw (9) is coaxially fixed in the filter tank (6). A one-way filter box (80) is set on the rod (9), so that the liquid can only pass in one direction. The upper end of the filter tank (6) is installed with a drive shaft (10) connected to the lifting screw (9). The drive shaft (10) A drive motor (11) is connected, a half gear (12) is sleeved on the drive shaft (10), and two ends of the half gear (12) are respectively meshed with a small one-way gear (13), and the small one-way gear ( 13) A toggle lever (14) is installed on it, a sterilization box (15) placed above the filter tank (6) is installed on the side of the small one-way gear (13), and a point switch (15) is installed on the sterilization box (15). 16), the filter tank (6) is connected to the water pump (18) placed on the outside of the filter tank (6) through the output pipe (17), and the water pump (18) is connected to the stirring tank (7) through the input pipe (19), and the stirring tank An external gear (20) is installed on the upper end of (7), a plurality of planetary pinions (21) are meshed with the external gear (20), and a common sun gear (22) is meshed with a plurality of the planetary pinions (21), A one-way pulley (23) is coaxially connected to the upper end of the sun gear (22). (22), the planetary pinion (21), and the lower end of the external gear (20) are all installed with an agitator (35). 2 . The waste liquid collection device for medical nursing according to claim 1 , wherein the one-way filter box ( 80 ) comprises a lower filter mesh shell ( 26 ) sleeved on the lifting screw ( 9 ). 3 . ), a sealing plate (27) is installed on the lower filter screen shell (26), and a plurality of one-way valves (28) distributed evenly around the circumference are inlaid on the sealing plate (27). ) are fixed with a plurality of vertical limit rods (29). 3 . The waste liquid collection device for medical nursing according to claim 1 , wherein the bottoms of the filter tank ( 6 ) and the stirring tank ( 7 ) are tapered, and the lift screw ( 9 ) A cleaning device (30) is installed at the bottom end of the filter tank (30), and the cleaning device (30) includes a plurality of cleaning plates (31) fitted with the conical surface of the bottom of the filter tank (6). 321) is fixed on the lower end of the lift screw (9). 4. A waste liquid collection device for medical nursing according to claim 1, characterized in that a sterilization disk (32) is installed between the one-way pulley (23) and the external gear (20), and the sterilization disk ( The bottom of 32) is provided with a plurality of liquid discharge ports (33), and a sealing baffle plate (34) is installed on the planetary pinion (21). 5 . The device for collecting waste liquid for medical nursing according to claim 1 , wherein the bottom of the filter tank ( 6 ) is communicated with the slag discharge chamber ( 37 ) through the first solenoid valve ( 36 ), and the slag discharge is carried out. 6 . A first heating chamber (38) is installed below the chamber (37), the slag discharge chamber (37) and the first heating chamber (38) are separated by a removable liquid leakage plate (39), and the first heating chamber (38) ) is installed with a plurality of first heating pipes (40). 6 . The waste liquid collection device for medical nursing according to claim 5 , characterized in that the slag discharge chamber ( 37 ) and the right side of the first heating chamber ( 38 ) and below the stirring tank ( 7 ) are located on the right side. 7 . A second heating chamber (41) is installed, the stirring tank (7) is communicated with the second heating chamber (41) through the second solenoid valve (42), and a plurality of second heating pipes ( 43). 7 . The waste liquid collection device for medical nursing according to claim 6 , wherein an exhaust valve ( 44 ) is respectively installed on the slag discharge chamber ( 37 ) and the second heating chamber ( 41 ). 8 . An exhaust fan (45) is installed on the casing (4). 8 . The waste liquid collection device for medical nursing according to claim 7 , wherein a pressing device is installed in the slag discharge chamber ( 37 ), and the pressing device comprises a pressing plate that moves up and down. 9 . (46), the middle of the extrusion plate (46) is provided with a discharge port (47) that matches the first solenoid valve (36), and the upper end of the extrusion plate (46) is slid through the upper end of the slag discharge chamber (37). The rod (48) is connected with a gear frame (49), the gear frame (49) is meshed with a fixed incomplete gear (50), and the incomplete gear (50) is coaxially connected with a left bevel gear (51), and the left bevel gear ( 51) The right bevel gear (52) is engaged with the right bevel gear (52) coaxially sleeved with a support rod (53), the upper end of the support rod (53) is provided with an internal thread hole (54), and the The upper end is provided with a support screw (55) that can move up and down, the lower end of the support screw (55) is provided with an external thread (56) matching the inner threaded hole (54), and the support screw (55) is provided with a matching external thread (56). The first pulley (57) is connected to the second pulley (59) via the second belt (58), and the second pulley (59) is sleeved on the drive shaft (10).

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