Medicament mixing preparation device for clinical medicine

Abstract

The invention discloses a medicament mixing preparation device for clinical medicine, and relates to the technical field of medicinal equipment, the technical scheme is as follows: the medicament mixing preparation device comprises a base and a mixing tank, the top of the base is provided with a placing seat and a support body, and the placing seat is used for placing the mixing tank; a top table is arranged at the top of the supporting body, a medicine storage barrel is arranged on the side face of the top table, and a medicine feeding pipe is arranged at the bottom of the medicine storage barrel and connected with the mixing tank to feed medicine raw materials into the mixing tank; the mixing tank comprises a tank body and a cover body, an opening is formed in the top of the tank body, and the cover body is arranged at the opening; a motor is arranged at the top of the cover body, and a stirring piece is arranged at the bottom of the cover body and penetrates through the cover body to be connected with the output end of the motor. According to the medicament mixing and preparing device, the uniformity and efficiency of medicament mixing are greatly improved, the component consistency of each medicament is ensured, and the safety and effectiveness of clinical medication are improved; accurate quantification of medicine addition is realized; the medicine residue in the tank body can be quickly and thoroughly removed, and cross contamination is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of pharmaceutical equipment, and more specifically, to a clinical medicine mixing and preparing device. Background Art

[0002] Clinical pharmacy is a pharmaceutical discipline that studies the rationality and effectiveness of drug prevention and treatment. Its main content is to study the theory and method of drug metabolism in the human body to achieve the highest efficacy. It focuses on the relationship between drugs and people, directly involving the drugs themselves, the subjects of medication and the way of administration, and therefore directly involving the quality of medical care. The history of medical development has eloquently proved that if medicine and medicine lean towards either side, mankind will be punished. In hospitals, the fine division of labor between doctors and pharmacists has made medicine and pharmacy closed to the outside world and become a shackle for development. The knowledge explosion in today's pharmaceutical industry has shaken the balanced relationship between medicine and medicine, but clinical pharmacy has built a bridge and become the bond for the reunion of medicine and medicine. The practical significance of carrying out clinical pharmacy is to ensure the safety and effectiveness of patients' medication, improve the level of medical care, closely combine hospital pharmacy with clinical practice, and achieve the purpose of rational medication. In clinical pharmacy work, it is often necessary to mix and prepare multiple drugs according to specific formulas and dosages to make medicines for patients. Traditional drug preparation methods mostly rely on medical staff to manually stir and mix using tools such as mortars and glass rods. This method is not only inefficient, but also consumes a lot of time and energy of medical staff, and it is difficult to ensure the uniformity of drug mixing. In addition, some drugs are volatile, irritating or toxic, and manual operation can easily expose medical staff to drugs, posing a potential threat to their health.

[0003] Although some existing drug preparation devices have achieved a certain degree of automation, they still have many shortcomings. For example, some devices have a single stirring structure, and cannot fully stir and evenly mix some drugs with high viscosity or uneven particle size; some devices are inconvenient to operate when adding drugs, and cannot accurately control the amount of drugs added, which easily leads to inaccurate drug ratios; and some devices are difficult to clean, and drug residues are prone to breed bacteria, affecting the quality of the next drug preparation.

[0004] Therefore, there is an urgent need for a clinical pharmaceutical dosage preparation device that can efficiently, accurately and safely mix drugs and is easy to operate and clean. Summary of the invention

[0005] The purpose of the present invention is to provide a clinical medicine mixing and preparation device to solve the problems of uneven mixing, inconvenient operation, difficulty in accurately controlling the amount of drug administered, and difficulty in cleaning the device during the medicine preparation process, thereby improving the efficiency and quality of medicine preparation and ensuring the health and safety of medical staff.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a clinical medical drug mixing and preparation device, comprising a base and a mixing tank, wherein a placement seat and a support body are provided on the top of the base, wherein the placement seat is used to place the mixing tank; a top platform is provided on the top of the support body, a drug storage cartridge is provided on the side of the top platform, a drug delivery pipe is provided at the bottom of the drug storage cartridge and connected to the mixing tank to deliver drug raw materials into the mixing tank; the mixing tank comprises a tank body and a cover body, wherein an opening is provided on the top of the tank body, and the cover body is arranged at the opening; a motor is provided on the top of the cover body, and a stirring element is provided at the bottom of the cover body and passes through the cover body and is connected to the output end of the motor.

[0007] The present invention is further configured as follows: the bottom of the tank body is semicircular and is provided with a medicine outlet pipe, an electric valve is provided at the connection between the medicine outlet pipe and the tank body, and the inner wall of the tank body is smoothed; a notch is provided on the side of the placement seat for the passage of the medicine outlet pipe, and a water tank is provided on the top of the base at a position corresponding to the medicine outlet pipe.

[0008] The present invention is further configured as follows: a spiral refrigeration plate and a second protective shell are provided on the inner side of the placement seat, a spiral heating resistance wire and a first protective shell are provided on the semicircular bottom of the inner side of the placement seat; and a temperature sensor is provided in the mixing tank.

[0009] The present invention is further configured as follows: a plurality of drug storage cartridges are arranged on both sides of the top platform, the drug storage cartridges are made of medical grade plastic or glass, and the drug storage cartridges are provided with liquid level sensors to monitor the remaining amount of drug in real time; an opening is arranged on the top of the drug storage cartridge and a sealing cover is arranged at the opening.

[0010] The present invention is further configured as follows: one end of the medicine delivery tube is connected to the medicine storage cylinder, and the other end is connected to the cover of the mixing tank. Flow metering valves are provided near both ends of the medicine delivery tube to measure the amount of medicine liquid flowing through at a single time.

[0011] The present invention is further configured as follows: the cover body includes a fixed cover and a flip cover, the fixed cover is detachably and sealedly connected to the top of the tank body, the flip cover and the fixed cover are hingedly connected to achieve flipping, and the flip cover is sealed with the tank body when it is closed on the top of the tank body; the motor is vertically arranged on the top of the fixed cover.

[0012] The present invention is further configured as follows: the stirring element includes a vertical stirring shaft, the top end of the stirring shaft passes through the cover body and is connected to the output end of the motor, and the bottom end is provided with an upwardly curved arc stirring curved rod 2; a stirring assembly is arranged at intervals on the stirring shaft, and the stirring assembly includes a stirring blade and a downwardly curved stirring curved rod 1.

[0013] The present invention is further configured as follows: a high-precision electronic scale is built into the top of the top platform, and a tray is provided above the high-precision electronic scale for placing medicines for weighing.

[0014] The present invention is further configured as follows: a water tank and a water pump are provided on the back of the support body, a tee piece and a water pipe hose are provided at the output end of the water pump; a nozzle is provided at the bottom of the cover body and a water inlet hole is correspondingly provided at the top, and a medicine inlet hole is also provided on the cover body; the water pipe hose is connected to the water inlet hole, and the medicine delivery pipe is connected to the medicine inlet hole.

[0015] The present invention is further configured as follows: a connecting seat is provided on the top of the base between the support body and the placement seat, a control slot and a circuit board are provided on the top of the connecting seat, a power socket is provided on the side of the connecting seat; and a touch screen and functional buttons are provided on the top platform.

[0016] In summary, the present invention has the following beneficial effects: 1. The drug mixing and preparation device of the present invention can evenly mix and stir the drugs by driving the unique stirring element to rotate through a motor, which can meet the mixing requirements of various drug forms, greatly improve the uniformity and efficiency of drug mixing, ensure the consistency of the ingredients of each drug, and improve the safety and effectiveness of clinical medication. 2. The drug mixing and preparation device of the present invention realizes the precise quantitative addition of drugs through high-precision electronic scales, flow metering valves and closed-loop control technology, effectively avoids the problem of inaccurate drug ratios caused by human factors or equipment errors, and ensures the stability of the treatment effect. 3. The drug mixing and preparation device of the present invention can not only quickly and thoroughly remove the drug residues in the tank body to prevent cross contamination, but also reduce the cleaning burden of medical staff, provide convenience for frequent drug preparation work, and extend the service life of the device. 4. The drug mixing and preparation device of the present invention simplifies the operation process of medical staff. Only parameters need to be input to automatically complete the complex drug preparation process, and the operation of the device can be monitored in real time, which improves the work reliability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a drug mixing and preparation device in an embodiment of the present invention;

[0018] Figure 2 1 is a rear view of a medicine mixing and preparing device according to an embodiment of the present invention;

[0019] Figure 3 1 is a side view of a medicine mixing and preparing device in an embodiment of the present invention;

[0020] Figure 4 This is a structural diagram of a mixing tank in an embodiment of the present invention;

[0021] Figure 5 1 is a structural diagram of a placement seat in an embodiment of the present invention.

[0022] In the figure: 1. base; 2. placement seat; 3. connection seat; 4. support body; 5. top platform; 6. mixing tank; 7. medicine storage cartridge; 8. tray; 9. medicine delivery pipe; 10. touch screen; 11. functional buttons; 12. control slot; 13. water tank; 14. water pipe hose; 15. three-way fitting; 16. water tank; 17. water pump; 18. flow metering valve; 19. motor; 20. stirring shaft; 21. stirring blade; 22. stirring curved rod 1; 23. stirring curved rod 2; 24. heating resistor wire; 25. cooling plate; 26. protective shell 1; 27. protective shell 2; 28. power socket; 61. tank body; 62. fixed cover; 63. flip cover; 64. medicine inlet hole; 65. water inlet hole; 66. nozzle; 67. medicine outlet pipe. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-5 The present invention is described in further detail.

[0024] Embodiment: A clinical medicine mixing and preparing device, such as Figure 1-Figure 5As shown, it includes a base 1 and a mixing tank 6. A placement seat 2 and a support body 4 are provided on the top of the base 1. The placement seat 2 is cylindrical, and a placement groove for placing the mixing tank 6 and matching the shape of the mixing tank 6 is provided on the top. When in use, the mixing tank 6 is placed in the placement groove. Further, a clamp or a limiting structure can be provided on the top of the mixing tank 6 and the placement seat 2 to further fix the mixing tank 6. A top platform 5 is provided on the top of the support body 4, and a drug storage barrel 7 is provided on the side of the top platform 5 to store the raw materials or original drugs for mixing and preparing drugs. A drug delivery pipe 9 is provided at the bottom of the drug storage barrel 7 to connect with the mixing tank 6, and the drug raw materials are delivered to the inside of the mixing tank 6 through the drug delivery pipe 9. The mixing tank 6 includes a tank body 61 and a cover body. An opening is provided on the top of the tank body 61, so that the drug can be added and the situation inside the tank body 61 can be observed. The cover body is provided at the opening, and the top of the tank body 61 is sealed by the cover body. A motor 19 is provided on the top of the cover body, and a stirring piece is provided on the bottom of the cover body and connected to the output end of the motor 19 through the cover body. The stirring piece is driven by the motor 19 to rotate to stir and mix the medicine inside the mixing tank 6 evenly. A connecting seat 3 is provided on the top of the base 1 between the support body 4 and the placement seat 2. A control slot 12 and a circuit board are provided on the top of the connecting seat 3. A processor is mounted on the circuit board for data processing and system control. A power jack 28 is provided on the side of the connecting seat 3; a touch screen 10 and a functional button 11 are provided on the top platform 5. The touch screen 10 has a human-computer interaction function. While realizing operation control, the data of the position of each functional component of the device is displayed, and the drug mixing parameters such as the amount of each drug added, the current temperature in the tank 61, the speed of the stirring motor 19, etc. are displayed intuitively and clearly. It can also display the operating status of the equipment, the temperature curve and the fault alarm information in real time. The functional button 11 includes digital buttons and control buttons. Medical staff can conveniently input parameters such as drug mixing ratio, target temperature, stirring time, etc. through buttons, and start the mixing program after the settings are completed. Furthermore, an indicator light is provided, which is distributed on one side of the touch screen 10 and is used to indicate the power status, operating status, and reminder to add medicines of the device, so as to provide medical staff with clear device information at a glance and ensure simple and efficient operation.

[0025] The cover body includes a fixed cover 62 and a flip cover 63. The fixed cover 62 is detachably sealed and connected to the top of the tank body 61. The flip cover 63 is hinged with the fixed cover 62 to achieve flipping. When the flip cover 63 is closed on the top of the tank body 61, it is sealed with the tank body 61. The motor 19 is vertically arranged on the top of the fixed cover 62.

[0026] The tank body 61 is made of transparent and chemically resistant medical grade materials, such as high borosilicate glass or specific medical plastics. This material allows medical staff to directly observe the mixing of medicines through the tank body 61, and can withstand chemical erosion by various common medicines. The side of the tank body 61 is finely engraved with scale marks, and the scale accuracy can reach 0.1ml or higher, which is convenient for medical staff to grasp the mixed amount of medicines in the tank body 61 in real time and intuitively. The bottom of the tank body 61 is semicircular and is provided with a medicine outlet pipe 67. An electric valve is provided at the connection between the medicine outlet pipe 67 and the tank body 61, and the inner wall of the tank body 61 is smoothed. A notch is provided on the side of the placement seat 2 for the passage of the medicine outlet pipe 67, and a water tank 13 is provided on the top of the base 1 at the corresponding position of the medicine outlet pipe 67, and the mixed medicine is discharged through the medicine outlet pipe 67.

[0027] The inner side of the placement seat 2 is provided with a spiral cooling sheet 25 and a protective shell 27, and the inner semicircular bottom of the placement seat 2 is provided with a spiral heating resistor 24 and a protective shell 1 26; a temperature sensor is provided in the mixing tank 6. For some temperature-sensitive medicines, mixing is very important. The heating resistor 24 uses high-efficiency heating materials such as nickel-chromium alloy, which can quickly increase the temperature in the tank body 61; the cooling sheet 25 uses a semiconductor cooling sheet 25; the placement seat 2 has a two-way function of cooling and heating to meet different temperature control requirements. The temperature sensor can monitor the temperature in the mixing tank 6 in real time, monitor the heating or cooling temperature in real time, feedback and control it through the system.

[0028] A plurality of drug storage barrels 7 are arranged on both sides of the top platform 5. The drug storage barrels 7 are made of medical grade plastic or glass, and the capacity is designed according to the dosage range of common drugs. The drug storage barrels 7 are provided with liquid level sensors to monitor the remaining amount of drugs in real time. When the remaining amount is insufficient, an early warning reminder will be given on the touch screen 10. An opening is arranged on the top of the drug storage barrel 7 and a sealing cover is arranged at the opening to facilitate the addition of supplementary drugs into the drug storage barrel 7.

[0029] One end of the medicine delivery tube 9 is connected to the medicine storage barrel 7, and the other end is connected to the cover of the mixing tank 6. Flow metering valves 18 are provided near both ends of the medicine delivery tube 9 to measure the amount of liquid medicine flowing through at a single time. The medicine delivery tube 9 uses a medical silicone tube or a polytetrafluoroethylene tube, which has good chemical stability and flexibility. It connects the medicine storage barrel 7 and the mixing tank 6 to ensure smooth delivery of the medicine, and a one-way valve can be set on the delivery pipeline to prevent the medicine from flowing back. The flow metering valves 18 at both ends of the medicine delivery tube 9 can measure the amount of liquid medicine flowing through the two ends of the medicine delivery tube 9 and feed it back to the processor. By comparing the flow data at the two places, the amount of liquid medicine in the medicine delivery tube 9 is calculated, and it is judged whether the amount of liquid medicine added to the mixing tank 6 reaches the set value.

[0030] The stirring member includes a vertical stirring shaft 20, the top of which passes through the cover body and is connected to the output end of the motor 19, and the bottom of which is provided with an upwardly curved stirring curved rod 23. The stirring shaft 20 is made of high-strength alloy steel to ensure stability under high-speed rotation. The upper end of the stirring shaft 20 is rigidly connected to the output shaft of the driving motor 19 through a coupling. A stirring assembly is arranged on the stirring shaft 20 at intervals, and the stirring assembly includes a stirring blade 21 and a downwardly curved stirring curved rod 1 22. The stirring blade 21 is designed as a double-layer spiral structure, and the inner and outer spiral directions are opposite, which can simultaneously generate upward and downward thrusts, so that the medicine forms a complex convection cycle in the stirring chamber and strengthens the mixing effect. The shape curvature of the stirring curved rod 1 22 and the stirring curved rod 23 is customized according to the inner wall and bottom of the mixing tank 6, and is in a bent arc. During the stirring process, the inner wall and bottom of the tank body 61 can be effectively scraped to prevent the medicine from piling up and sticking, and ensure that the medicine at the corners can also fully participate in the mixing. The motor 19 adopts a variable frequency speed regulating motor 19, which has a wide speed adjustment range. The stirring speed can be flexibly adjusted through the control system according to different drug properties, mixing stages (such as initial mixing, fine mixing, etc.) and the total amount of drugs to achieve the best stirring effect.

[0031] A high-precision electronic scale is built into the top of the top platform 5, and a tray 8 is provided above the high-precision electronic scale for placing medicine for weighing. It enables the weighing of powdered or solid medicines, and the medicines are added into the mixing tank 6 through the opening at the flip cover 63 through the tray 8.

[0032] The back of the support body 4 is provided with a water tank 16 and a water pump 17, and the output end of the water pump 17 is provided with a tee 15 and a water pipe hose 14; a nozzle 66 is provided at the bottom of the cover body and a water inlet hole 65 is correspondingly provided at the top, and a medicine inlet hole 64 is also provided on the cover body; the water pipe hose 14 is connected to the water inlet hole 65, and the medicine delivery pipe 9 is connected to the medicine inlet hole 64. The nozzle 66, the medicine inlet hole 64 and the water inlet hole 65 are all arranged on the fixed cover 62. The nozzle 66 is a high-pressure nozzle 66, an atomizing nozzle 66 or a fan-shaped nozzle 66, and the nozzle 66 can rotate 360 ​​degrees, or the nozzle 66 is installed on an electric rotating part to achieve a certain angle of rotation, ensuring that the cleaning covers the inner wall of the tank body 61, the stirring shaft 20 and the stirring blade 21 in all directions. The nozzle 66 is made of acid and alkali resistant ceramic material to prevent corrosion by chemical cleaning liquid.

[0033] Before using the drug mixing and preparation device of the present invention, the mixing tank 6 is placed on the placement seat 2 and fixed. The medical staff first determines the type of drugs to be mixed and the amount of each drug according to the clinical drug prescription, and replaces and checks whether the drugs used for mixing in each drug storage cartridge 7 are correct and whether the amount of drugs added is sufficient. The parameters such as the amount of each drug added, the temperature required for mixing, and the stirring time are input in sequence through the touch screen 10. The solid or powdered drug is weighed by a high-precision electronic scale and added to the mixing tank 6. The liquid level sensor automatically detects the drug liquid level and displays it on the touch screen 10. After confirming that the drug is sufficient, prepare to start the mixing program.

[0034] After the mixing program is started, the heating resistor 24 or the cooling sheet 25 works to quickly adjust the temperature in the tank 61 to the target value according to the preset temperature. The temperature sensor feeds back the temperature in real time to ensure that the accuracy is within the range of ±0.5°C. After reaching the set temperature, the medicines in each medicine storage cartridge 7 are added according to the preset amount and accurately delivered to the inside of the mixing tank 6 through the medicine delivery pipe 9. At the same time, the stirring motor 19 is started to drive the stirring element to rotate. The speed is adjusted within the range of 50-5000 rpm according to the characteristics of the medicine, so as to promote the full mixing of the medicine under the action of the complex flow field.

[0035] When the preset stirring time is reached, the motor 19 stops running, and the mixed medicine is temporarily stored in the mixing tank 6. Medical staff can open the electric valve at the bottom of the tank body 61 to take out the medicine through the medicine outlet pipe 67 for clinical use.

[0036] After all the drugs in the mixing tank 6 are taken out, the water pump 17 is started, and the water in the water tank 16 is sprayed on the inner wall of the tank body 61 and the stirring element in all directions through the nozzle 66 to rinse the residual drugs. The sewage is discharged and cleaned through the drug outlet pipe 67, and the device is cleaned to prepare for the next drug mixing. During the whole process, if the error of the drug addition amount exceeds the preset range, the temperature is abnormal, or the equipment fails, an alarm will be issued in time to remind medical staff to deal with it.

[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A clinical medicine mixing and preparation device, characterized in that: The invention comprises a base (1) and a mixing tank (6), wherein a placement seat (2) and a support body (4) are provided on the top of the base (1), wherein the placement seat (2) is used to place the mixing tank (6); a top platform (5) is provided on the top of the support body (4), a drug storage cartridge (7) is provided on the side of the top platform (5), and a drug delivery pipe (9) is provided at the bottom of the drug storage cartridge (7) and is connected to the mixing tank (6) to deliver drug raw materials into the mixing tank (6); the mixing tank (6) comprises a tank body (61) and a cover body, wherein an opening is provided on the top of the tank body (61), and the cover body is arranged at the opening; a motor (19) is provided on the top of the cover body, and a stirring element is provided at the bottom of the cover body and passes through the cover body to be connected to the output end of the motor (19).

2. A clinical medicine mixing and preparing device according to claim 1, characterized in that: The bottom of the tank body (61) is semicircular and is provided with a medicine outlet pipe (67). An electric valve is provided at the connection between the medicine outlet pipe (67) and the tank body (61). The inner wall of the tank body (61) is smoothed. A notch is provided on the side of the placement seat (2) for the passage of the medicine outlet pipe (67). A water tank (13) is provided on the top of the base (1) at a position corresponding to the medicine outlet pipe (67).

3. A clinical medicine mixing and preparing device according to claim 1, characterized in that: The inner side surface of the placement seat (2) is provided with a spiral refrigeration plate (25) and a second protective shell (27), and the semicircular bottom of the inner side of the placement seat (2) is provided with a spiral heating resistance wire (24) and a first protective shell (26); and a temperature sensor is provided in the mixing tank (6).

4. A clinical medicine mixing and preparing device according to claim 1, characterized in that: A plurality of drug storage barrels (7) are arranged on both sides of the top platform (5). The drug storage barrels (7) are made of medical-grade plastic or glass and are provided with liquid level sensors for real-time monitoring of the remaining amount of the drug. An opening is arranged on the top of the drug storage barrel (7) and a sealing cover is arranged at the opening.

5. A clinical medicine mixing and preparing device according to claim 4, characterized in that: One end of the medicine delivery pipe (9) is connected to the medicine storage cylinder (7), and the other end is connected to the cover of the mixing tank (6). Flow metering valves (18) are provided near both ends of the medicine delivery pipe (9) to measure the amount of medicine liquid flowing through at a single time.

6. A clinical medicine mixing and preparing device according to claim 1, characterized in that: The cover body comprises a fixed cover (62) and a flip cover (63); the fixed cover (62) is detachably and hermetically connected to the top of the tank body (61); the flip cover (63) is hingedly connected to the fixed cover (62) to achieve flipping; and the flip cover (63) is sealed with the tank body (61) when it is covered on the top of the tank body (61).

7. A clinical medicine mixing and preparing device according to claim 1, characterized in that: The stirring member comprises a vertical stirring shaft (20), the top end of which passes through the cover body and is connected to the output end of the motor (19), and the bottom end of which is provided with an upwardly curved stirring curved rod 2 (23); a stirring assembly is arranged at intervals on the stirring shaft (20), and the stirring assembly comprises a stirring blade (21) and a downwardly curved stirring curved rod 1 (22).

8. A clinical medicine mixing and preparing device according to claim 1, characterized in that: A high-precision electronic scale is built into the top of the top platform (5), and a tray (8) is provided above the high-precision electronic scale for placing medicines for weighing.

9. A clinical medicine mixing and preparing device according to claim 1, characterized in that: The back of the support body (4) is provided with a water tank (16) and a water pump (17); the output end of the water pump (17) is provided with a three-way piece (15) and a water pipe hose (14); the bottom of the cover body is provided with a nozzle (66) and the top is correspondingly provided with a water inlet hole (65); the cover body is also provided with a medicine inlet hole (64); the water pipe hose (14) is connected to the water inlet hole (65), and the medicine delivery pipe (9) is connected to the medicine inlet hole (64).

10. A clinical medicine mixing and preparing device according to any one of claims 1 to 9, characterized in that: A connecting seat (3) is provided on the top of the base (1) between the support body (4) and the placement seat (2); a control slot (12) and a circuit board are provided on the top of the connecting seat (3); a power socket (28) is provided on the side of the connecting seat (3); and a touch screen (10) and functional buttons (11) are provided on the top platform (5).

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