CN211273119U

CN211273119U - Clinical device of dosing of medical oncology

Info

Publication number: CN211273119U
Application number: CN201922305869.8U
Authority: CN
Inventors: 贺会杰; 张素兰; 刘倩倩; 孔雨苹
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-18
Anticipated expiration: 2029-12-20

Abstract

A clinical drug delivery device for medical oncology is characterized in that an inner pipe is fixedly connected to the surface of the front end of a three-way pipe, and an outer pipe is rotatably connected to the outer surface of the inner pipe; the left side and the right side of the front end of the outer surface of the three-way pipe are rotatably connected with ball valve switches, and the inner sides of the two ball valve switches are fixedly connected with rotatable perforated balls; a recovery pipe is fixedly connected to the left side of the surface of the front end of the three-way pipe, and a pressurization control box capable of sliding forwards in a single direction is mounted at the front end of the recovery pipe; the right side of the surface of the front end of the three-way pipe is fixedly connected with a medicine inlet pipe, and the front end of the medicine inlet pipe is provided with a negative pressure control box capable of sliding backwards in one direction; the left end and the right end in the pressurization control box are provided with first trapezoidal sliding blocks capable of moving inwards, and the left end and the right end in the negative pressure control box are provided with second trapezoidal sliding blocks capable of moving inwards; the pressurizing control box and the negative pressure control box are internally provided with control structures which can control the first trapezoidal sliding block and the second trapezoidal sliding block to move inwards; can improve the spraying accuracy and control the coating amount of the liquid medicine.

Description

Clinical device of dosing of medical oncology

Technical Field

The utility model belongs to the technical field of medical equipment and specifically relates to a clinical device of dosing of medical oncology.

Background

The oncology department, the internal medicine department, the surgery department, the obstetrics and gynecology department and the pediatrics department are the secondary subjects of clinical medicine, which are divided into the oncology department, the oncology radiotherapy department, the oncology department and the like, and the oncology department is mainly used for the medical treatment of various benign and malignant tumors; the tumor radiotherapy department is mainly engaged in the radiotherapy of tumors; the tumor surgery provides comprehensive treatment mainly based on operation; the tumor patients mostly adopt related drugs for injection to control and treat the tumors, the liquid medicine is sprayed at the tumor part in the prior art, but the waste liquid needs to be drained after spraying for a period of time, so that the working efficiency of medical personnel is reduced; and too much liquid medicine can damage normal tissue, and many devices still need pressurize simultaneously and spray the liquid medicine at the in-process of spraying, do like this to have the influence to the accuracy that the doctor sprayed the liquid medicine, and can not suspend at the in-process of spraying, and the defect is great, and some devices realize some functions, but the cost is too high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's deficiency, provide a clinical device of dosing of medical oncology, can provide the pressurization back and directly spray the liquid medicine, spray the degree of accuracy promotion of liquid medicine to the doctor, can suspend at any time spraying the process, and have recovery unit to reduce the damage of liquid medicine to normal tissue after spraying the liquid medicine, the cost is with low costs, has solved the problem mentioned in the above-mentioned background effectively.

In order to solve the above problems, the utility model adopts the following technical proposal:

a clinical drug delivery device for medical oncology comprises a three-way pipe, wherein the surface of the front end of the three-way pipe is fixedly connected with an inner pipe, and the outer surface of the inner pipe is rotatably connected with an outer pipe; the left side and the right side of the front end of the outer surface of the three-way pipe are rotatably connected with ball valve switches, and the inner sides of the two ball valve switches are fixedly connected with rotatable perforated balls; a recovery pipe is fixedly connected to the left side of the surface of the front end of the three-way pipe, and a pressurization control box capable of sliding forwards in a single direction is mounted at the front end of the recovery pipe; the right side of the surface of the front end of the three-way pipe is fixedly connected with a medicine inlet pipe, and the front end of the medicine inlet pipe is provided with a negative pressure control box capable of sliding backwards in one direction; the left end and the right end in the pressurization control box are provided with first trapezoidal sliding blocks capable of moving inwards, and the left end and the right end in the negative pressure control box are provided with second trapezoidal sliding blocks capable of moving inwards; the pressurizing control box and the negative pressure control box are internally provided with control structures which can control the first trapezoidal sliding block and the second trapezoidal sliding block to move towards the inner side.

Preferably, the inner wall of the recovery pipe is slidably connected with a negative pressure circular push plate, the center of the front end surface of the negative pressure circular push plate is fixedly connected with a negative pressure telescopic rod, and the front end surface of the negative pressure telescopic rod is fixedly connected to the middle of the rear end surface of the negative pressure control box.

Preferably, the control structure comprises a third baffle, the inner side surfaces of the two second trapezoidal sliding blocks are fixedly connected to the outer side surface of the third baffle, the inner side surfaces of the third baffle are both fixedly connected with third straight racks, and the inner sides of the two third straight racks are engaged with second straight gears; the middle parts of the front and rear end surfaces of the negative pressure control box are respectively provided with a second square through hole, the inner walls of the second square through holes are respectively connected with a second square block in a sliding manner, the inner side surfaces of the second square blocks are respectively and fixedly connected with a fourth baffle plate, the inner side surfaces of the fourth baffle plates are respectively and fixedly connected with fourth straight racks, and the inner sides of the two fourth straight racks are meshed at the left and right ends of the second straight gear; and the outer side surface of the second square block is fixedly connected with a negative pressure control button.

Preferably, the inner wall of the medicine inlet pipe is connected with a pressurizing circular push plate in a sliding manner, a pressurizing telescopic rod is fixedly connected to the center of the surface of the front end of the pressurizing circular push plate, and the surface of the front end of the pressurizing telescopic rod is fixedly connected to the middle of the surface of the rear end of the pressurizing control box;

the inner side surfaces of the two first trapezoidal sliding blocks are fixedly connected with first baffle plates, the inner side surfaces of the first baffle plates are fixedly connected with first straight racks, and the inner sides of the two first straight racks are meshed with first straight gears; the middle parts of the front end surface and the rear end surface of the pressurization control box are respectively provided with a first square through hole, the inner wall of each first square through hole is connected with a first square block in a sliding manner, the inner side surfaces of the first square blocks are respectively and fixedly connected with a second baffle plate, the inner side surfaces of the second baffle plates are respectively and fixedly connected with second straight racks, and the inner sides of the two second straight racks are meshed at the left end and the right end of the first straight gear; and the outer side surfaces of the two first square blocks are fixedly connected with a pressurization control button.

The utility model discloses novel structure, think about ingenious, easy operation is convenient, compares with prior art and has following advantage:

the utility model provides a clinical device of dosing of medical oncology can provide the accurate dosing to patient's tumour position, meets need the large tracts of land to spout the position and can directly adjust, meets some positions that need not spout the medicine at the medicine spraying in-process, can suspend and spout the medicine to injure innocent normal tissue, can carry out the waste liquid after spouting the liquid medicine and retrieve, whole device is with low costs, easy operation.

Drawings

Fig. 1 is the utility model discloses a clinical device of dosing of medical oncology's whole outward appearance sketch map.

Fig. 2 is the cross-sectional view of the outer tube and the inner tube of the clinical drug delivery device for the medical oncology of the utility model.

Figure 3 is the utility model discloses a clinical device's of dosing of medical oncology three-way pipe cross-sectional view.

Fig. 4 is a cross-sectional view of the drug inlet tube and the recovery tube of the clinical drug delivery device for medical oncology of the utility model.

Figure 5 is the utility model discloses a clinical negative pressure control box and the pressurization control box cross-sectional view of dosing of medical oncology device.

Fig. 6 is a cross-sectional enlarged view of the pressurization control box of the clinical drug delivery device for medical oncology of the utility model.

Figure 7 is the utility model discloses a negative pressure control structure of clinical device of dosing of medical oncology enlargies in section.

Fig. 8 is the internal structure diagram of the negative pressure control box and the pressurization control box of the clinical drug delivery device for medical oncology of the utility model.

Reference numbers in the figures: 1-medicine feeding pipe, 2-outer pipe, 3-three-way pipe, 5-ball valve switch, 6-recovery pipe, 7-Chinese character 'shan' frame, 8-pressurizing telescopic rod, 9-negative pressure telescopic rod, 10-negative pressure control box, 11-pressurizing control box, 12-inner pipe, 13-ball with hole, 14-negative pressure round push plate, 15-negative pressure spring, 16-pressurizing round push plate, 17-pressurizing spring, 18-pressurizing control button, 19-negative pressure control button, 20-first trapezoidal slide block, 21-first baffle plate, 22-first spring, 23-first straight rack, 24-first straight gear, 25-second straight rack, 26-second baffle plate, 27-first square block, 28-second trapezoidal slide block, 29-third baffle plate, 30-a second spring, 31-a third spur rack, 32-a second spur gear, 33-a fourth spur rack, 34-a fourth baffle and 35-a second square block.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-8, the utility model provides a clinical drug delivery device for medical oncology, which comprises a three-way pipe 3, wherein the surface of the front end of the three-way pipe 3 is fixedly connected with an inner pipe 12, and the outer surface of the inner pipe 12 is rotatably connected with an outer pipe 2; the left side and the right side of the front end of the outer surface of the three-way pipe 3 are rotatably connected with ball valve switches 5, and the inner sides of the two ball valve switches 5 are fixedly connected with rotatable perforated balls 13; a recovery pipe 6 is fixedly connected to the left side of the surface of the front end of the three-way pipe 3, and a pressurization control box 11 capable of sliding forwards in a single direction is mounted at the front end of the recovery pipe 6; the right side of the surface of the front end of the three-way pipe 3 is fixedly connected with a medicine inlet pipe 1, and the front end of the medicine inlet pipe 1 is provided with a negative pressure control box 10 capable of sliding backwards in one direction; the left end and the right end in the pressurizing control box 11 are provided with first trapezoidal sliding blocks 20 capable of moving inwards, and the left end and the right end in the negative pressure control box 10 are provided with second trapezoidal sliding blocks 28 capable of moving inwards; the pressurizing control box 11 and the negative pressure control box 10 are internally provided with a control structure which can control the first trapezoidal slide block 20 and the second trapezoidal slide block 28 to move inwards.

The front end surface of the inner tube 12 is fixedly connected with a small hemisphere, the front end surface of the outer tube 2 is fixedly connected with a large hemisphere, and the outer surfaces of the large hemisphere and the small hemisphere are respectively provided with a cylindrical hole; the outer pipe 2 is rotatably connected to the front end surface of the three-way pipe 3; when the outer tube 2 rotates, the holes on the big hemisphere are communicated with the holes on the small hemisphere, and the big hemisphere for introducing the medicine can be sprayed in a large area; the ball valve switch 5 arranged on the left side of the front end of the three-way pipe 3 is used for controlling the communication between the three-way pipe 3 and the recovery pipe 6, and the ball valve switch 5 arranged on the right side of the front end of the three-way pipe 3 is used for controlling the communication between the three-way pipe 3 and the medicine inlet pipe 1; the control structure installed on the pressure control box 11 and the negative pressure control box 10 can make the first trapezoidal slide block 20 and the second trapezoidal slide block 28 move inwards, when the first trapezoidal slide block 20 and the second trapezoidal slide block 28 move into the pressure control box 11 and the negative pressure control box 10, the pressure control box 11 and the negative pressure control box 10 can move back and forth freely, the structures installed inside the pressure control box 11 and the negative pressure control box 10 are the same, and the difference is that the directions of the inclined surfaces of the first trapezoidal slide block 20 and the second trapezoidal slide block 28 are opposite.

The inner wall of the recovery pipe 6 is connected with a negative pressure round push plate 14 in a sliding mode, a negative pressure telescopic rod 9 is fixedly connected to the center of the surface of the front end of the negative pressure round push plate 14, and the surface of the front end of the negative pressure telescopic rod 9 is fixedly connected to the middle of the surface of the rear end of the negative pressure control box 10.

The negative pressure telescopic rod 9 consists of an outer cylinder and an inner rod; the bottom end inside the outer barrel is fixedly connected with a negative pressure spring 15, the other end of the negative pressure spring 15 is fixedly connected to the surface of the rear end of the inner rod, the ball valve switch 5 at the right end of the three-way pipe 3 is rotated, the perforated ball 13 can rotate to prevent the three-way pipe 3 from being communicated with the recovery pipe 6, the negative pressure control box 10 is pulled forwards manually, the forward movement of the negative pressure control box 10 can drive the inner rod of the negative pressure telescopic rod 9 to move forwards, the three-way pipe 3 and the recovery pipe 6 form a sealed cavity, the forward movement of the inner rod can pull the negative pressure spring 15 to move forwards, the negative pressure spring 15 can be stretched, the negative pressure spring 15 has a force of pulling the negative pressure circular push plate 14 forwards, and the negative pressure control box 10 can only move forwards in a single direction, so negative pressure exists in the sealed cavity, and when the ball valve.

The control structure comprises a third baffle 29, the inner side surfaces of the two second trapezoidal sliding blocks 28 are fixedly connected to the outer side surface of the third baffle 29, the inner side surfaces of the third baffle 29 are fixedly connected with third straight racks 31, and the inner sides of the two third straight racks 31 are meshed with second straight gears 32; the middle parts of the surfaces of the front end and the rear end of the negative pressure control box 10 are respectively provided with a second square through hole, the inner wall of each second square through hole is respectively connected with a second square block 35 in a sliding manner, the inner side surfaces of the second square blocks 35 are respectively fixedly connected with a fourth baffle 34, the inner side surfaces of the fourth baffle 34 are respectively fixedly connected with a fourth straight rack 33, and the inner sides of the two fourth straight racks 33 are meshed with the left end and the right end of the second straight gear 32; the outer side surfaces of the two second square blocks 35 are fixedly connected with negative pressure control buttons 19.

Rectangular through holes are formed in the middle of the surfaces of the left end and the right end of the negative pressure control box 10, rectangular grooves are formed in the positions, corresponding to the inner sides of the two rectangular through holes, of the negative pressure control box 10, third baffles 29 slide on the inner walls of the rectangular grooves, second trapezoidal sliding blocks 28 slide on the inner walls of the rectangular through holes, second springs 30 are mounted on the outer sides of third straight racks 31, the outer ends of the second springs 30 are fixedly connected to the inner walls of the third baffles 29, the inner ends of the second springs are fixedly connected to the long rectangular grooves, long rectangular through holes are formed in the inner walls of the two rectangular grooves, and the third straight racks 31 slide in the long rectangular; a large square groove is formed in the negative pressure control box 10 corresponding to the inner ends of the two second square through holes, the center of the second straight gear 32 is fixedly connected with a rotation shaft, and the rotation shaft is rotatably connected to the inner wall of the large square groove; the front end of the outer surface of the recovery tube is fixedly connected with a Chinese character shan-shaped frame 7, the Chinese character shan-shaped frame 7 is provided with three straight rods in total, two rows of triangular sliding grooves are formed in the inner side surfaces of the straight rod at the left end and the straight rod at the middle part, two rows of reverse triangular sliding grooves are formed in the inner side surfaces of the straight rod at the right end and the straight rod at the middle part, and the second trapezoidal sliding block 28 slides in the reverse triangular sliding grooves in a one-way mode; when the pressure in the recovery pipe 6 needs to be reduced, the negative pressure control box 10 is pulled forwards, the negative pressure control box 10 moves forwards to drive the negative pressure telescopic rod 9 to move forwards, the negative pressure telescopic rod 9 moves forwards to extend the negative pressure spring 15, and the change in the negative pressure control box 10 is that when the negative pressure control box 10 moves forwards, the second trapezoidal slider 28 slides with the reverse triangular sliding chute, the second trapezoidal slider 28 repeatedly enters and exits the rectangular through hole continuously, when the second trapezoidal slider 28 is separated from one of the reverse triangular sliding chutes, the second trapezoidal slider 28 enters the inner wall of the rectangular through hole, and when the next groove of the reverse triangular sliding chute is met, the second trapezoidal slider 28 enters the groove of the reverse triangular sliding chute under the elastic force of the second spring 30; when the use is finished, the negative pressure control button 19 at the upper end and the lower end can be pressed, so that the negative pressure control button 19 moves inwards to drive the second square block 35 to move inwards, the second square block 35 moves inwards to drive the fourth baffle 34 to move inwards, the fourth baffle 34 moves inwards to drive the fourth spur rack 33 to move inwards, the fourth spur rack 33 moves inwards to drive the second spur gear 32 to rotate, the second spur gear 32 rotates to drive the third spur rack 31 to move inwards, the third spur rack 31 moves inwards to drive the third baffle 29 to move inwards, the third baffle 29 moves inwards to drive the second trapezoidal slide block 28 to move inwards, and when the second trapezoidal slide block 28 moves inwards to the inside of the rectangular through hole, the second trapezoidal slide block can be separated from the reverse trapezoidal slide groove, so that the negative pressure control box 10 can move forwards and backwards to reset; when the negative pressure control cassette 10 is pulled to the forefront, the suction force in the recovery pipe 6 is maximized, and the waste liquid can be absorbed into the recovery pipe 6 by bringing the front end of the outer pipe 2 into contact with the waste liquid to be absorbed.

The inner wall of the medicine inlet pipe 1 is connected with a pressurizing circular push plate 16 in a sliding manner, the center of the surface of the front end of the pressurizing circular push plate 16 is fixedly connected with a pressurizing telescopic rod 8, and the surface of the front end of the pressurizing telescopic rod 8 is fixedly connected to the middle of the surface of the rear end of the pressurizing control box 11;

the inner side surfaces of the two first trapezoidal sliding blocks 20 are fixedly connected with a first baffle 21, the inner side surfaces of the first baffle 21 are fixedly connected with first straight racks 23, and the inner sides of the two first straight racks 23 are engaged with first straight gears 24; the middle parts of the front and rear end surfaces of the pressurization control box 11 are respectively provided with a first square through hole, the inner wall of each first square through hole is respectively connected with a first square block 27 in a sliding manner, the inner side surfaces of the first square blocks 27 are respectively and fixedly connected with a second baffle plate 26, the inner side surfaces of the second baffle plates 26 are respectively and fixedly connected with second straight racks 25, and the inner sides of the two second straight racks 25 are meshed at the left end and the right end of the first straight gear 24; the outer side surfaces of the two first square blocks 27 are fixedly connected with a pressurizing control button 18.

The pressurizing telescopic rod 8 consists of an outer cylinder and an inner rod; the bottom end in the outer cylinder is fixedly connected with a pressurizing spring 17, the other end of the pressurizing spring 17 is fixedly connected to the surface of the rear end of the inner rod, a ball valve switch 5 at the left end of a three-way pipe 3 is rotated, a perforated ball 13 can rotate, the three-way pipe 3 is not communicated with a medicine inlet pipe 1, the pressurizing control box 11 is manually pulled forward, the pressurizing control box 11 moves forward to drive the inner rod of a pressurizing telescopic rod 8 to move forward, the pressurizing spring 17 can be stretched due to the fact that the three-way pipe 3 and the medicine inlet pipe 1 form a sealed cavity, the pressurizing spring 17 can be pulled forward by the forward movement of the inner rod, and the pressurizing spring 17 has a force for pulling a pressurizing circular push plate 16 forward;

the outer sides of the first straight racks 23 are respectively provided with a first spring 22, the outer ends of the first springs 22 are fixedly connected to the inner wall of the first baffle 21, the direction of unidirectional movement of the pressurization control box 11 is opposite to that of the negative pressure control box 10, the pressurization control box 11 can move backwards in a unidirectional manner, the pressurization control box 11 moves forwards by pressing the pressurization control button 18, negative pressure is generated in the medicine inlet pipe 1, then the front end of the outer pipe 2 is put into the medicine liquid, the left ball valve switch 5 is screwed, the three-way pipe 3 is communicated with the medicine inlet pipe 1, the medicine liquid is sucked into the medicine inlet pipe 1, the pressurization control box 11 is pressed backwards again, the pressurization springs 17 are compressed, the medicine liquid is sprayed out, the medicine liquid is sprayed by rotating the outer pipe 2, and the medicine liquid stops spraying in a large area by rotating the ball valve at the left end when medicine application is required to be suspended; the liquid medicine can be sprayed in a large area, and the control is convenient; the medicine feeding device has the advantages that the work of pushing medicine and coating medicine is avoided, and when medicine is fed, the medicine liquid can be pushed out of the outer tube 2 under the action of the self elasticity of the pressurizing spring 17, so that the medicine feeding accuracy is improved.

When the utility model is used, the pressurizing control box 11 moves forwards by pressing the pressurizing control spring, then the outer pipe 2 contacts the liquid medicine, the ball valve switch 5 at the left end of the three-way pipe 3 is screwed, the liquid medicine can enter the medicine inlet pipe 1, the pressurizing control box 11 is pressed backwards again, the medicine inlet pipe 1 is filled with pressure, and then the medicine can be sprayed in a small area, and the outer pipe 2 is screwed, so that the medicine can be sprayed in a large area; the negative pressure control box 10 is pushed to move the negative pressure control box 10 forwards, the ball valve switch 5 at the right end is screwed, and the front end of the outer tube 2 is aligned to the waste liquid to be absorbed, so that the waste liquid can be absorbed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a clinical device of dosing of medical oncology, includes three-way pipe (3), its characterized in that: the inner pipe (12) is fixedly connected to the surface of the front end of the three-way pipe (3), and the outer surface of the inner pipe (12) is rotatably connected with the outer pipe (2); the left side and the right side of the front end of the outer surface of the three-way pipe (3) are rotatably connected with ball valve switches (5), and the inner sides of the two ball valve switches (5) are fixedly connected with rotatable perforated balls (13); a recovery pipe (6) is fixedly connected to the left side of the surface of the front end of the three-way pipe (3), and a pressurization control box (11) capable of sliding forwards in a single direction is mounted at the front end of the recovery pipe (6); the right side of the surface of the front end of the three-way pipe (3) is fixedly connected with a medicine inlet pipe (1), and the front end of the medicine inlet pipe (1) is provided with a negative pressure control box (10) capable of sliding backwards in one direction; the left end and the right end of the inside of the pressurization control box (11) are provided with first trapezoidal sliding blocks (20) capable of moving inwards, and the left end and the right end of the inside of the negative pressure control box (10) are provided with second trapezoidal sliding blocks (28) capable of moving inwards; and control structures capable of controlling the first trapezoidal sliding block (20) and the second trapezoidal sliding block (28) to move inwards are arranged in the pressurizing control box (11) and the negative pressure control box (10).

2. The clinical drug delivery device for oncology department according to claim 1, wherein: the inner wall of the recovery pipe (6) is connected with a negative pressure circular push plate (14) in a sliding mode, a negative pressure telescopic rod (9) is fixedly connected to the center of the surface of the front end of the negative pressure circular push plate (14), and the surface of the front end of the negative pressure telescopic rod (9) is fixedly connected to the middle of the surface of the rear end of the negative pressure control box (10).

3. The clinical drug delivery device for oncology department according to claim 2, wherein: the control structure comprises a third baffle (29), the inner side surfaces of the two second trapezoidal sliding blocks (28) are fixedly connected to the outer side surface of the third baffle (29), the inner side surfaces of the third baffle (29) are fixedly connected with third straight racks (31), and the inner sides of the two third straight racks (31) are meshed with second straight gears (32); the middle parts of the surfaces of the front end and the rear end of the negative pressure control box (10) are respectively provided with a second square through hole, the inner walls of the second square through holes are respectively connected with a second square block (35) in a sliding manner, the inner side surfaces of the second square blocks (35) are respectively and fixedly connected with a fourth baffle (34), the inner side surfaces of the fourth baffle (34) are respectively and fixedly connected with a fourth straight rack (33), and the inner sides of the two fourth straight racks (33) are meshed at the left end and the right end of the second straight gear (32); and the outer side surfaces of the two second square blocks (35) are fixedly connected with negative pressure control buttons (19).

4. The clinical drug delivery device for oncology department according to claim 1, wherein: the inner wall of the medicine inlet pipe (1) is connected with a pressurizing circular push plate (16) in a sliding mode, a pressurizing telescopic rod (8) is fixedly connected to the center of the surface of the front end of the pressurizing circular push plate (16), and the surface of the front end of the pressurizing telescopic rod (8) is fixedly connected to the middle of the surface of the rear end of the pressurizing control box (11);

the inner side surfaces of the two first trapezoidal sliding blocks (20) are fixedly connected with first baffle plates (21), the inner side surfaces of the first baffle plates (21) are fixedly connected with first straight racks (23), and the inner sides of the two first straight racks (23) are meshed with first straight gears (24); the middle parts of the front end surface and the rear end surface of the pressurization control box (11) are respectively provided with a first square through hole, the inner wall of each first square through hole is connected with a first square block (27) in a sliding manner, the inner side surfaces of the first square blocks (27) are respectively and fixedly connected with a second baffle plate (26), the inner side surfaces of the second baffle plates (26) are respectively and fixedly connected with second straight racks (25), and the inner sides of the two second straight racks (25) are meshed at the left end and the right end of the first straight gear (24); and the outer side surfaces of the two first square blocks (27) are fixedly connected with a pressurization control button (18).