A potato virus detection device

Abstract

The invention discloses a virus detection device for potatoes, belonging to the technical field of virus detection devices. A base plate is fixedly installed on a working platform, a first electric cylinder is fixedly installed on the lower surface of the base plate, a movable end of the first electric cylinder is fixedly connected to a push plate, a spring coaxial with a slide rod is arranged between the push plate and the base plate, a rectangular flange is arranged below an upper mounting plate, two films are arranged between the base plate and the upper mounting plate, two ends of the two films are respectively wound around an active roller and a passive roller, the active roller is arranged in front of the film transmission direction, a potato tissue to be detected is placed on the film above the base plate; a scraping assembly and a grinding assembly are arranged above the upper mounting plate for grinding the potato tissue, a liquid adding assembly and a collecting assembly are arranged on the side of the upper mounting plate for collecting and transferring the ground potato tissue, and the invention has the advantages of high automation and good grinding effect.

Description

Technical Field

[0001] The invention relates to the technical field of virus detection equipment, in particular to a virus detection equipment for potatoes. Background Art

[0002] Potato viruses can cause serious harm to potatoes. In order to accurately grasp the growth of potatoes, it is necessary to effectively detect potato viruses. The current detection methods include biological detection and molecular biological detection. When using molecular biological methods for detection, potato nucleic acid extraction is first required. The process of extracting nucleic acid requires adding 500μL of EBⅠ reagent to 0.35g of potato tissue, placing the EB I reagent and the plant group in a grinding bag and concentrating them in a corner, and then using a small hammer to carefully grind the potato tissue. Next, take 100μL of tissue homogenate into a PCR operation tube, heat the sample at 99℃ for 2min and 85℃ for 13min in a PCR instrument, and finally store it at 4℃, centrifuge it quickly in a small centrifuge for 30 seconds, carefully draw 10μL of supernatant and add it to a 1.5mL microcentrifuge tube pre-filled with 240μL of EB II reagent, use a test tube shaker to mix the liquid evenly, and then use a centrifuge to quickly centrifuge for a few seconds. The liquid in the tube is the RNA sample for detection.

[0003] The current detection methods all involve manual grinding of potato tissues, which has low grinding efficiency and cannot guarantee grinding quality. In the process of tissue fluid transfer, tissue fluid contamination may also occur, thereby affecting the test results. Summary of the invention

[0004] The object of the present invention is to provide a potato virus detection device capable of automatically grinding and transferring tissue fluid in view of the defects in the prior art.

[0005] In view of the above technical problems, the technical solution adopted by the present invention is as follows: a potato virus detection device, comprising a base plate and an upper mounting plate, wherein the base plate is fixedly mounted on a working platform and provides a mounting foundation for other parts, wherein sliding bars are arranged at the four corners of the upper mounting plate, wherein the sliding bars are slidably mounted on the base plate, wherein two adjacent sliding bars are connected by a push plate, wherein a first electric cylinder is fixedly mounted on the lower surface of the base plate, wherein the movable end of the first electric cylinder is fixedly connected to the push plate, wherein a spring coaxial with the sliding bar is arranged between the push plate and the base plate, wherein a rectangular flange is arranged below the upper mounting plate, wherein two films are arranged between the base plate and the upper mounting plate, wherein the two ends of the two films are respectively wound around an active roller and a passive roller, wherein the active roller is arranged in front of the film conveying direction, and the potato tissue to be detected is placed on the film above the base plate; wherein a scraping assembly and a grinding assembly are arranged above the upper mounting plate for grinding the potato tissue, wherein a liquid adding assembly and a collecting assembly are arranged on the side of the upper mounting plate for collecting and transferring the ground potato tissue.

[0006] Furthermore, the middle portion of the upper mounting plate is hollowed out, and the scraping assembly includes two first scrapers and two second scrapers, the two first scrapers and the two second scrapers are relatively arranged inside the hollow structure of the upper mounting plate, the first ends of the two first scrapers are respectively threadedly matched with the two sections of threaded structures on the first bidirectional screw to form a threaded match, the second ends of the two first scrapers are respectively slidably mounted on the first guide rod, the second bidirectional screw is rotatably mounted on the rotating seat, one end of the second bidirectional screw is fixedly connected to the output shaft of the second motor, the first guide rod is fixedly mounted on the upper mounting plate, a slideway is provided on the first scraper, the first ends of the two second scrapers pass through the first scraper and form a threaded match with the two sections of threaded structures on the second bidirectional screw, the second ends of the two second scrapers pass through the first scraper and are slidably mounted on the second guide rod, the second bidirectional screw is rotatably mounted on the rotating seat, one end of the second bidirectional screw is fixedly connected to the output shaft of the second motor, the second guide rod is fixedly mounted on the upper mounting plate, and the lower surfaces of the first scraper and the second scraper are flush with the lower surface of the flange.

[0007] Furthermore, the grinding assembly includes a transverse plate, a first end of the transverse plate is threadedly matched with the driving screw, the other end of the transverse plate is slidably mounted on the third guide rod, the driving screw is rotatably mounted on the upper mounting plate, one end of the driving screw is fixedly connected to the output shaft of the third motor, the third motor is fixedly mounted on the upper mounting plate, a double-sided gear is fixedly mounted on the transverse plate, both sides of the double-sided gear are provided with a toothed structure, a sliding seat is slidably mounted on the transverse plate, a mounting bracket is fixedly mounted on the sliding seat, a fourth motor is fixedly mounted on the mounting bracket, a driving gear is fixedly mounted on the output shaft of the fourth motor, and the driving gear forms a gear match with one side of the double-sided gear.

[0008] Furthermore, a rotating shaft is provided on the sliding seat and the mounting bracket so as to rotate and slide simultaneously, a keyway is provided on the rotating shaft, the passive gear is slidingly connected to the rotating shaft via the keyway, the passive gear is rotatably installed on the sliding seat, the passive gear forms a gear match with the other side of the double-sided gear, a grinding head is fixedly connected to the lower end of the rotating shaft, and the grinding head is eccentrically arranged with the rotating shaft.

[0009] Furthermore, the rotating shaft is rotatably connected to a first end of a driving plate, a second end of the driving plate is fixedly connected to a movable end of a second electric cylinder, and the second electric cylinder is fixedly mounted on a mounting bracket.

[0010] Furthermore, a fixing plate is fixedly installed on the side of the flange, a third electric cylinder is fixedly installed on the fixing plate, a mounting block is fixedly installed on the movable end of the third electric cylinder, a rotating motor is arranged inside the mounting block, an output shaft of the rotating motor is fixedly connected to the mounting tube, and a liquid adding assembly and a collecting assembly are arranged on the mounting tube.

[0011] Furthermore, the liquid adding assembly includes a liquid outlet pipe, the liquid outlet pipe is connected to the liquid storage tank, the liquid outlet pipe is installed on a first mounting rod, the first mounting rod is slidably installed inside the mounting cylinder, and an electric cylinder connected to the first mounting rod is arranged inside the mounting cylinder.

[0012] Furthermore, the collecting assembly includes a second mounting rod, the second mounting rod is rotatably and slidably installed inside the mounting cylinder, the end of the second mounting rod is fixedly installed with a mounting frame, a piston plate is slidably installed inside the second mounting rod, the piston plate penetrates the mounting frame, and the mounting frame opposite to the second mounting rod is slidably installed with a piston plate, a first baffle is fixedly installed on one end of the piston plate located outside the mounting frame, a fourth electric cylinder is arranged between the first baffle and the outer side of the mounting frame, and two arc plates are relatively arranged on the mounting frame, the arc plates are slidably installed on the mounting frame, a second baffle is fixedly installed on one end of the arc plate located outside the mounting frame, a fifth electric cylinder is arranged between the second baffle and the outer side of the mounting frame, and semicircular notches are arranged on both of the two arc plates.

[0013] Compared with the prior art, the present invention has the following advantages: (1) the grinding assembly provided in the present invention can simultaneously realize the rotation and movement drive of the grinding head under the drive of a single power source, and cooperate with the lifting and lowering movement of the grinding head and the sliding of the transverse plate to realize efficient and fully automatic grinding of potato tissue; (2) the pair of first scrapers and the pair of second scrapers provided in the present invention can realize the gathering of potato tissue fluid dispersed by grinding, so that there is no grinding dead angle in the whole process, and the grinding quality is further improved; (3) the collection assembly provided in the present invention can automatically realize the collection and transfer of potato tissue after grinding, replacing manual operation, preventing the potato tissue from being contaminated, and improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention (first viewing angle).

[0015] Figure 2 It is a schematic diagram of the overall structure of the present invention (second viewing angle).

[0016] Figure 3 This is a schematic diagram of the scraping component structure of the present invention (first viewing angle).

[0017] Figure 4 It is a schematic diagram of the structure of the scraping component of the present invention (second viewing angle).

[0018] Figure 5 This is a schematic diagram of the structure of the present invention after removing the liquid adding component and the collecting component.

[0019] Figure 6 for Figure 5 A local enlarged schematic diagram of point A in the middle.

[0020] Figure 7 It is a schematic diagram of the overall structure of the present invention (third viewing angle).

[0021] Figure 8 It is a schematic diagram of the structure of the liquid adding component and the collecting component of the present invention.

[0022] Figure numbers: 1-base plate; 2-film; 3-upper mounting plate; 4-flange; 5-first electric cylinder; 6-push plate; 7-spring; 8-slide rod; 9-first bidirectional lead screw; 10-rotating seat; 11-first motor; 12-first scraper; 13-slideway; 14-second motor; 15-second bidirectional lead screw; 16-second scraper; 17-first guide rod; 18-second guide rod; 19-third guide rod; 20-driving lead screw; 21-third motor; 22-transverse plate; 23-double-side gear; 24-slide Seat; 25-passive gear; 26-mounting bracket; 27-rotating shaft; 28-driving plate; 29-second electric cylinder; 30-fourth motor; 31-driving gear; 32-grinding head; 33-fixing plate; 34-third electric cylinder; 35-mounting block; 36-mounting cylinder; 37-first mounting rod; 38-liquid outlet pipe; 39-second mounting rod; 40-mounting frame; 41-piston plate; 42-fourth electric cylinder; 43-first baffle; 44-arc plate; 45-fifth electric cylinder; 46-second baffle; 47-semicircular notch. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings.

[0024] Example: Figure 1-Figure 8 As shown, a potato virus detection device comprises a base plate 1 and an upper mounting plate 3. The base plate 1 is fixedly mounted on a working platform and provides a mounting foundation for other parts. Slide bars 8 are arranged on the four corners of the upper mounting plate 3. The slide bars 8 are slidably mounted on the base plate 1. Two adjacent slide bars 8 are connected by a push plate 6. A first electric cylinder 5 is fixedly mounted on the lower surface of the base plate 1. The movable end of the first electric cylinder 5 is fixedly connected to the push plate 6. A spring 7 coaxial with the slide bar 8 is arranged between the push plate 6 and the base plate 1. A rectangular flange 4 is arranged below the upper mounting plate 3. Two films 2 are arranged between the base plate 1 and the upper mounting plate 3. The two ends of the two films 2 are respectively wound around an active roller and a passive roller. The active roller is arranged in front of the film 2 in the conveying direction. The potato tissue to be detected is placed on the film 2 located above the base plate 1. A scraping assembly and a grinding assembly are arranged above the upper mounting plate 3 for grinding the potato tissue. A liquid adding assembly and a collecting assembly are arranged on the side of the upper mounting plate 3 for collecting and transferring the ground potato tissue.

[0025] like Figure 1-Figure 4As shown, the middle part of the upper mounting plate 3 is hollowed out, and the scraping assembly includes two first scrapers 12 and two second scrapers 16. The two first scrapers 12 and the two second scrapers 16 are relatively arranged inside the hollow structure on the upper mounting plate 3. The first ends of the two first scrapers 12 are respectively threadedly matched with the two sections of threaded structures on the first bidirectional lead screw 9. The second ends of the two first scrapers 12 are respectively slidably mounted on the first guide rod 17. The second bidirectional lead screw 15 is rotatably mounted on the rotating seat 10. One end of the second bidirectional lead screw 15 is fixedly connected to the output shaft of the second motor 14. The first guide rod 17 is fixedly mounted It is installed on the upper mounting plate 3, and a slideway 13 is provided on the first scraper 12. The first ends of the two second scrapers 16 pass through the first scraper 12 and form a threaded fit with the two sections of threaded structure on the second bidirectional lead screw 15. The second ends of the two second scrapers 16 pass through the first scraper 12 and are slidably installed on the second guide rod 18. The second bidirectional lead screw 15 is rotatably installed on the rotating seat 10. One end of the second bidirectional lead screw 15 is fixedly connected to the output shaft of the second motor 14. The second guide rod 18 is fixedly installed on the upper mounting plate 3. The lower surfaces of the first scraper 12 and the second scraper 16 are flush with the lower surface of the flange 4.

[0026] like Figure 5 , Figure 6 As shown, the grinding assembly includes a transverse plate 22, a first end of the transverse plate 22 is threadedly matched with the driving screw 20, the other end of the transverse plate 22 is slidably mounted on the third guide rod 19, the driving screw 20 is rotatably mounted on the upper mounting plate 3, one end of the driving screw 20 is fixedly connected to the output shaft of the third motor 21, the third motor 21 is fixedly mounted on the upper mounting plate 3, a double-sided gear 23 is fixedly mounted on the transverse plate 22, both sides of the double-sided gear 23 are provided with a toothed structure, a sliding seat 24 is slidably mounted on the transverse plate 22, a mounting bracket 26 is fixedly mounted on the sliding seat 24, a fourth motor 30 is fixedly mounted on the mounting bracket 26, a driving gear 31 is fixedly mounted on the output shaft of the fourth motor 30, and the driving gear 31 forms a gear match with one side of the double-sided gear 23.

[0027] like Figure 5 , Figure 6 As shown, a rotating shaft 27 is provided on the sliding seat 24 and the mounting bracket 26 so as to rotate and slide simultaneously. A keyway is provided on the rotating shaft 27. The passive gear 25 is slidingly connected to the rotating shaft 27 through the keyway. The passive gear 25 is rotatably mounted on the sliding seat 24. The passive gear 25 forms a gear match with the other side of the double-sided gear 23. A grinding head 32 is fixedly connected to the lower end of the rotating shaft 27, and the grinding head 32 is eccentrically arranged with the rotating shaft 27.

[0028] like Figure 5 , Figure 6As shown, the first end of a driving plate 28 is rotatably connected to the rotating shaft 27 , the second end of the driving plate 28 is fixedly connected to the movable end of a second electric cylinder 29 , and the second electric cylinder 29 is fixedly mounted on the mounting bracket 26 .

[0029] like Figure 7 , Figure 8 As shown, a fixing plate 33 is fixedly installed on the side of the flange 4, a third electric cylinder 34 is fixedly installed on the fixing plate 33, a mounting block 35 is fixedly installed on the movable end of the third electric cylinder 34, a rotating motor is arranged inside the mounting block 35, the output shaft of the rotating motor is fixedly connected to the mounting cylinder 36, and a liquid adding component and a collecting component are arranged on the mounting cylinder 36.

[0030] like Figure 7 , Figure 8 As shown, the liquid adding assembly includes a liquid outlet pipe 38, which is connected to the liquid storage tank and is installed on a first mounting rod 37. The first mounting rod 37 is slidably installed inside the mounting cylinder 36, and an electric cylinder connected to the first mounting rod 37 is arranged inside the mounting cylinder 36.

[0031] like Figure 7 , Figure 8 As shown, the collecting assembly includes a second mounting rod 39, which is rotatably and slidably mounted inside the mounting tube 36, a mounting frame 40 is fixedly mounted on the end of the second mounting rod 39, a piston plate 41 is slidably mounted inside the second mounting rod 39, the piston plate 41 penetrates the mounting frame 40, and a piston plate 41 is slidably mounted on the mounting frame 40 opposite to the second mounting rod 39, a first baffle 43 is fixedly mounted on one end of the piston plate 41 located outside the mounting frame 40, a fourth electric cylinder 42 is arranged between the first baffle 43 and the outer side of the mounting frame 40, and two arc plates 44 are relatively arranged on the mounting frame 40, the arc plate 44 is slidably mounted on the mounting frame 40, a second baffle 46 is fixedly mounted on one end of the arc plate 44 located outside the mounting frame 40, a fifth electric cylinder 45 is arranged between the second baffle 46 and the outer side of the mounting frame 40, and semicircular notches 47 are arranged on both arc plates 44.

[0032] The working principle of a potato virus detection device disclosed in the present invention is as follows: in an initial state, the movable end of the first electric cylinder 5 is in a retracted state, a potato tissue is placed above a film 2 close to a base plate 1, and a medicine is dripped onto the potato tissue through a liquid outlet pipe 38. After the medicine addition is completed, a rotating motor located inside the mounting block 35 is started, and the mounting cylinder 36 is adjusted to a position parallel to the base plate 1, and the first electric cylinder 5 is started, and the movable end of the first electric cylinder 5 is extended, and the upper mounting plate 3 is pressed down, and the potato tissue is sealed between the two films 2 through the flange 4, and the third motor 21 is started, and the third motor 21 drives the transverse plate 22 to slide on the third guide rod 19 through the driving screw 20, and the fourth motor 30 is started at the same time, and the fourth motor 30 The driving gear 31 is driven to rotate, and the sliding seat 24 is driven to slide on the transverse plate 22 under the action of the double-sided gears 23. As the sliding seat 24 slides, the double-sided gears 23 drive the passive gear 25 to drive the rotating shaft 27 to rotate, and the rotating shaft 27 drives the grinding head 32 to rotate around the axis of the rotating shaft 27 to realize the grinding process. At the same time, the second electric cylinder 29 is started to perform reciprocating lifting and lowering motion to realize all-round grinding of the potato tissue. The potato tissue will be dispersed in all directions during the grinding process. At this time, the first motor 11 and the second motor 14 are started respectively, so that the two first scrapers 12 and the two second scrapers 16 move toward each other respectively, so that the crushed potato tissue gathers in the middle, and the above two steps are repeated until the potato tissue is ground.

[0033] After the grinding is completed, the movable end of the first electric cylinder 5 is retracted, and under the action of the spring 7, the upper mounting plate 3 is lifted from the base plate 1, and the rotating motor inside the mounting block 35 is started, so that the mounting frame 40 is rotated to the top of the ground potato tissue. In the initial state, the two arc plates 44 are separated from each other, and the two piston plates 41 are located inside the arc plates 44 in the length direction. The fifth electric cylinder 45 is started, and the movable end of the fifth electric cylinder 45 is retracted. The two arc plates 44 are close to each other, and the potato tissue located on the film 2 is collected into the space formed by the two arc plates 44 and the two piston plates 41. After the collection is completed, the rotating motor inside the mounting block 35 rotates in the opposite direction to lift the mounting frame 40 off the base plate 1 The second mounting rod 39 is driven to rotate, and the semicircular notch 47 is rotated downward. The test tube is placed under the two semicircular notches 47 and opposite to the semicircular notches 47 by a manipulator, and the two piston plates 41 are driven to slide toward each other, so that the potato tissue fluid inside the arc plate 44 is squeezed out from the semicircular notch 47 and falls into the test tube for the next operation. The film 2 is wound up under the action of the active roller. At the same time, the detection equipment is also equipped with a spraying device when in use. After completing one detection, the entire detection device is sprayed and disinfected to prevent affecting the next detection result.

Claims

1. A potato virus detection device, characterized in that: The utility model comprises a base plate (1) and an upper mounting plate (3), wherein the base plate (1) is fixedly mounted on a working platform and provides a mounting foundation for other parts, wherein sliding rods (8) are arranged at four corners of the upper mounting plate (3), wherein the sliding rods (8) are slidably mounted on the base plate (1), and two adjacent sliding rods (8) are connected by a push plate (6), wherein a first electric cylinder (5) is fixedly mounted on the lower surface of the base plate (1), wherein the movable end of the first electric cylinder (5) is fixedly connected to the push plate (6), and a spring (7) coaxial with the sliding rod (8) is arranged between the push plate (6) and the base plate (1), and a rectangular flange (4) is arranged below the upper mounting plate (3), and two films (2) are arranged between the base plate (1) and the upper mounting plate (3), wherein the two ends of the two films (2) are respectively wound around an active roller and a passive roller, and the active roller is arranged in front of the film (2) in the conveying direction, and the potato tissue to be detected is placed on the film (2) located above the base plate (1); A scraping assembly and a grinding assembly are arranged above the upper mounting plate (3) for grinding potato tissues, and a liquid adding assembly and a collecting assembly are arranged on the side of the upper mounting plate (3) for collecting and transferring the ground potato tissues; The middle part of the upper mounting plate (3) is hollowed out, and the scraping assembly includes two first scrapers (12) and two second scrapers (16). The two first scrapers (12) and the two second scrapers (16) are relatively arranged inside the hollow structure on the upper mounting plate (3). The first ends of the two first scrapers (12) respectively form threaded cooperation with the two sections of threaded structures on the first bidirectional lead screw (9). The second ends of the two first scrapers (12) are respectively slidably mounted on the first guide rod (17). The second bidirectional lead screw (15) is rotatably mounted on the rotating seat (10). One end of the second bidirectional lead screw (15) is connected to the second motor (14). The output shaft is fixedly connected, the first guide rod (17) is fixedly mounted on the upper mounting plate (3), a slideway (13) is provided on the first scraper (12), the first ends of the two second scrapers (16) pass through the first scraper (12) and form a threaded fit with the two sections of threaded structure on the second bidirectional lead screw (15), the second ends of the two second scrapers (16) pass through the first scraper (12) and are slidably mounted on the second guide rod (18), the second guide rod (18) is fixedly mounted on the upper mounting plate (3), and the lower surfaces of the first scraper (12) and the second scraper (16) are flush with the lower surface of the flange (4); The grinding assembly comprises a transverse plate (22), a first end of the transverse plate (22) and a driving screw (20) forming a threaded fit, the other end of the transverse plate (22) being slidably mounted on a third guide rod (19), the driving screw (20) being rotatably mounted on an upper mounting plate (3), one end of the driving screw (20) being fixedly connected to an output shaft of a third motor (21), the third motor (21) being fixedly mounted on the upper mounting plate (3), a double-sided gear (23) being fixedly mounted on the transverse plate (22), both sides of the double-sided gear (23) being provided with a toothed structure, a sliding seat (24) being slidably mounted on the transverse plate (22), a mounting bracket (26) being fixedly mounted on the sliding seat (24), a fourth motor (30) being fixedly mounted on the mounting bracket (26), a driving gear (31) being fixedly mounted on the output shaft of the fourth motor (30), the driving gear (31) forming a gear fit with one side of the double-sided gear (23); A rotating shaft (27) is provided on the sliding seat (24) and the mounting bracket (26) so as to rotate and slide at the same time, a keyway is provided on the rotating shaft (27), a passive gear (25) is slidingly connected to the rotating shaft (27) through the keyway, the passive gear (25) is rotatably mounted on the sliding seat (24), the passive gear (25) forms a gear match with the other side of the double-sided gear (23), a grinding head (32) is fixedly connected to the lower end of the rotating shaft (27), and the grinding head (32) is eccentrically arranged with the rotating shaft (27); The first end of a driving plate (28) is rotatably connected to the rotating shaft (27), the second end of the driving plate (28) is fixedly connected to the movable end of a second electric cylinder (29), and the second electric cylinder (29) is fixedly mounted on the mounting bracket (26).

2. A potato virus detection device according to claim 1, characterized in that: A fixing plate (33) is fixedly mounted on the side of the flange (4), a third electric cylinder (34) is fixedly mounted on the fixing plate (33), a mounting block (35) is fixedly mounted on the movable end of the third electric cylinder (34), a rotating motor is arranged inside the mounting block (35), an output shaft of the rotating motor is fixedly connected to the mounting cylinder (36), and a liquid adding component and a collecting component are arranged on the mounting cylinder (36).

3. A potato virus detection device according to claim 2, characterized in that: The liquid adding assembly comprises a liquid outlet pipe (38), the liquid outlet pipe (38) is connected to the liquid storage tank, the liquid outlet pipe (38) is installed on a first mounting rod (37), the first mounting rod (37) is slidably installed inside the mounting cylinder (36), and an electric cylinder connected to the first mounting rod (37) is arranged inside the mounting cylinder (36).

4. A potato virus detection device according to claim 2, characterized in that: The collecting assembly comprises a second mounting rod (39), the second mounting rod (39) is rotatably and slidably mounted inside the mounting cylinder (36), a mounting frame (40) is fixedly mounted on the end of the second mounting rod (39), a piston plate (41) is slidably mounted inside the second mounting rod (39), the piston plate (41) penetrates the mounting frame (40), a piston plate (41) is slidably mounted on the mounting frame (40) opposite to the second mounting rod (39), and a first baffle is fixedly mounted on one end of the piston plate (41) located outside the mounting frame (40) (43), a fourth electric cylinder (42) is arranged between the first baffle plate (43) and the outer side of the mounting frame (40), and two arc-shaped plates (44) are arranged on the mounting frame (40) in a relative manner. The arc-shaped plates (44) are slidably mounted on the mounting frame (40), and a second baffle plate (46) is fixedly mounted on one end of the arc-shaped plate (44) located outside the mounting frame (40), and a fifth electric cylinder (45) is arranged between the second baffle plate (46) and the outer side of the mounting frame (40), and semicircular notches (47) are arranged on the two arc-shaped plates (44).

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