CN112772070A

CN112772070A - Seedling transplanting device capable of tearing plastic film

Info

Publication number: CN112772070A
Application number: CN202011623246.6A
Authority: CN
Inventors: 刘少伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-11

Abstract

The invention relates to the technical field of seedling transplantation, and discloses a seedling transplantation device capable of tearing a plastic film, which comprises a seedling taking barrel, wherein holding rods are fixedly arranged on the left side and the right side of the seedling taking barrel, pull rods are arranged at the lower ends of the two holding rods, a rotating disc is sleeved on the seedling taking barrel, the seedling taking barrel is rotatably connected with the rotating disc, an arc-shaped groove is formed in the upper end of the rotating disc, a reset spring is arranged in the arc-shaped groove, a clamping block is fixedly arranged on the outer wall of the seedling taking barrel, and the clamping block is positioned in the arc-shaped groove. According to the invention, the plastic film is pressed on the ground by the pressing block at the lower end of the elastic rubber rod, and the tearing arc-shaped pressing plate moves in the tangential direction with the clamping plate in the deformation process of the rubber inclined rod, so that the tearing force of the tearing arc-shaped pressing plate on the plastic film is realized, the effect of tearing the plastic film is achieved, and the plastic film is prevented from sliding through the cutting knife plate and the rotating disc, so that a good tearing effect is achieved.

Description

Seedling transplanting device capable of tearing plastic film

Technical Field

The invention relates to the technical field of seedling transplantation, in particular to a seedling transplantation device capable of tearing a plastic film.

Background

In farming, when the seedling was planted, it together planted big piece seedling, secondly wait to the seedling when big some, need transplant the seedling to suitable growing environment in, need keep certain interval between seedling and the seedling simultaneously, just can make the seedling grow more fast.

However, the chinese patent application No. 201910059901.0 mentions that the seedlings are dug out by rotating and lowering the drill, but in many cases, a plastic film is used for covering the seedlings in order to retain moisture and improve survival rate, but the method of digging the seedlings downward by the drill winds the plastic film, which affects the digging of the seedlings.

Therefore, the plastic film is required to be torn in the digging process and then the seedlings are dug.

Disclosure of Invention

The present invention has been made in an effort to provide a seedling transplanting device capable of tearing a plastic film, which solves the problems set forth in the background art as described above.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a can tear plastic film's seedling transplantation device, is including getting a seedling section of thick bamboo, get the equal fixed mounting in seedling section of thick bamboo left and right sides and have the holding rod, two the holding rod lower extreme all is equipped with the pull rod, it is equipped with the rotary disk to get the cover on the seedling section of thick bamboo, and gets a seedling section of thick bamboo and rotate with the rotary disk and be connected, the arc wall has been seted up to the rotary disk upper end, be equipped with reset spring in the arc wall, it has the fixture block to get seedling section of thick bamboo outer wall.

Preferably, reset spring one end and fixture block fixed connection, and the reset spring other end and arc wall inner wall fixed connection, reset spring, arc wall and fixture block quantity all are equipped with two sets ofly, two sets ofly reset spring, arc wall and fixture block set up about getting seedling section of thick bamboo axis circumference array.

Preferably, get a seedling section of thick bamboo lower extreme and articulate and be connected with splint, it is equipped with stop gear to get a seedling section of thick bamboo lower extreme, stop gear includes elasticity rubber pole, briquetting and arc swash plate, elasticity rubber pole fixed mounting is in the upper end of briquetting, arc swash plate fixed mounting is at the inner wall of getting a seedling section of thick bamboo, the arc swash plate is kept away from one side of getting a seedling section of thick bamboo inner wall and is seted up circular arc groove, elasticity rubber pole passes through circular arc groove and arc swash plate sliding connection.

Preferably, the arc swash plate is the rotatory setting that rises, and the arc swash plate is more near more to the inclination who gets a seedling section of thick bamboo axis toward the upper end, circular arc groove is more near more getting the axis department of a seedling section of thick bamboo toward the upper end, and follows from up circular arc groove and be close to getting seedling section of thick bamboo axis width of cloth and increase gradually.

Preferably, the lower end of the rotating disc is fixedly provided with a spring arc plate, the lower end of the spring arc plate is fixedly provided with a pressing arc block, the spring arc plate and the pressing arc block are respectively provided with four blocks, the spring arc plate is inclined, the pressing arc block is fixedly connected with the pressing arc block through a triangular connecting rod, and the four pressing arc blocks are attached to the outer wall of the clamping plate.

Preferably, rotary disk lower extreme fixedly connected with rubber down tube, rubber down tube lower extreme is equipped with tears the arc clamp plate, rubber down tube lower extreme fixedly connected with turning block, it has seted up the arc cavity to tear arc clamp plate upper end middle part, the steel ball has been placed in the arc cavity, the jacking spring has been placed between steel ball and the steel ball, the turning block card is established in the arc cavity, turning block outer wall fixed mounting has the retaining ring.

Preferably, the diameter of the fixed ring is the same as that of the arc-shaped cavity, the steel ball is in contact with the lower end of the fixed ring, and two thirds of the rotating block is located in the arc-shaped cavity.

Preferably, the lower end of the tearing arc-shaped pressing plate is provided with a frame-shaped chamber, the inner wall of the upper end in the frame-shaped chamber is provided with a chute, the chute is communicated with the frame-shaped chamber, a contact plate is placed in the frame-shaped chamber, the left end and the right end of the contact plate are obliquely arranged, the oblique parts of the left end and the right end of the contact plate are respectively inserted into the two chutes, compression springs are arranged in the chutes, the upper ends of the compression springs are fixedly connected with the inner wall of the chute, the lower ends of the compression springs are fixedly connected with the contact plate, the upper end of the contact plate is clamped with an elastic arc-shaped plate, a first oblique rod and a second oblique rod are respectively arranged in the elastic arc-shaped plate, the right ends of the first oblique rod and the second oblique rod are hinged with the inner wall of the elastic arc-shaped plate, the upper ends of the first oblique rod and the lower ends of the second, the utility model discloses a cutting tool, including first down tube, extrusion piece, cutting blade groove, the sliding is equipped with the fender, fender upper end fixed mounting has the push rod, push rod one end with insert groove axle center department and rotate and be connected, push rod upper end fixed mounting has the mud spring, mud spring upper end and insert groove upper end inner wall.

Preferably, the blade groove and the cutting knife plate are both arranged in an arc shape, the knife inserting groove is arranged in an arc shape, and the axes of the knife inserting groove and the cutting knife plate are the same.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, the limiting mechanism is attached to the plastic film on the ground, then the seedling taking cylinder is used for downwards extruding, so that the required force is larger when the elastic rubber rod in the limiting mechanism upwards moves, the pressing block at the lower end of the elastic rubber rod presses the plastic film on the ground, and meanwhile, the tearing arc-shaped pressing plate moves in a direction tangential to the clamping plate in the deformation process of the rubber inclined rod, so that the tearing force of the tearing arc-shaped pressing plate on the plastic film is realized, the effect of tearing the plastic film is achieved, the seedling clamp is effectively taken out, the plastic film is torn at the same time, and the plastic film and the seedlings are prevented from being clamped together.

(2) According to the invention, the spring arc-shaped plate is driven to bend in the process of extruding the pressing arc-shaped block with the ground, the rotating disc is driven to rotate clockwise, the rubber inclined rod is driven to move clockwise in the rotating process, the purpose of clockwise rotation is achieved, the tearing arc-shaped pressing plate moves in the direction tangential to the plastic film and the clamping plate while extruding the plastic film, the tearing force of the tearing arc-shaped pressing plate on the plastic film is increased, and the tearing effect is better.

(3) According to the invention, the tearing arc-shaped pressing plate can keep a horizontal state when the seedling taking barrel moves downwards to take seedlings or moves upwards after the seedling taking is finished, and meanwhile, the tearing arc-shaped pressing plate can also keep a horizontal state when being torn, so that the tearing arc-shaped pressing plate and the plastic film can always keep a horizontal state, the plastic film can be quickly pressed, and meanwhile, the plastic film is torn, so that a better tearing effect is achieved.

(4) According to the invention, the tearing arc-shaped pressing plate is in contact with the temple and is extruded, the elastic arc-shaped plate is deformed, the plastic film is penetrated through by the cutting knife plate and is inserted into the knife inserting groove, so that the plastic film is folded and fixedly hooked on the cutting knife plate, and the plastic film is prevented from sliding in the moving process of the tearing arc-shaped pressing plate, so that a good tearing effect is achieved.

(5) When the cutting knife plate is reset, the cutting knife plate can retract into the blade groove, so that the cutting knife plate can effectively prevent operators from being injured due to contact, and has certain safety benefit.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the lower end structure of the seedling taking barrel of the present invention;

FIG. 3 is a schematic view of the internal structure of the seedling-taking cylinder of the present invention;

FIG. 4 is a schematic view of a rotary disk structure according to the present invention;

FIG. 5 is a schematic view of a tear arc platen according to the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is a partial enlarged view of B in FIG. 6 according to the present invention.

In the figure: 1. taking a seedling cylinder; 2. a pull rod; 3. a holding rod; 4. rotating the disc; 41. a clamping block; 42. a return spring; 43. an arc-shaped slot; 5. a splint; 6. a limiting mechanism; 61. an elastic rubber rod; 62. briquetting; 63. an arc-shaped sloping plate; 64. a circular arc groove; 7. compressing the arc-shaped block; 8. a spring arc plate; 9. tearing the arc-shaped pressing plate; 91. rotating the block; 92. an arc-shaped chamber; 93. fixing the circular ring; 94. a steel ball; 95. a jacking spring; 96. a chute; 97. a compression spring; 98. a frame-shaped chamber; 99. a first diagonal member; 901. a second diagonal member; 902. a contact plate; 903. extruding the block; 904. a compression spring; 905. an insert pocket; 906. cutting a knife board; 907. an elastic arc plate; 908. a knife slot; 909. a fender; 910. a push rod; 911. a mud pushing spring; 10. rubber diagonal rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a seedling transplanting device capable of tearing a plastic film comprises a seedling taking barrel 1, holding rods 3 are fixedly arranged on the left side and the right side of the seedling taking barrel 1, pull rods 2 are arranged at the lower ends of the two holding rods 3, a rotary disk 4 is sleeved on the seedling taking barrel 1, the seedling taking barrel 1 is rotatably connected with the rotary disk 4, an arc-shaped groove 43 is formed in the upper end of the rotary disk 4, a reset spring 42 is arranged in the arc-shaped groove 43, a clamping block 41 is fixedly arranged on the outer wall of the seedling taking barrel 1, the clamping block 41 is positioned in the arc-shaped groove 43, one end of the reset spring 42 is fixedly connected with the clamping block 41, the other end of the reset spring 42 is fixedly connected with the inner wall of the arc-shaped groove 43, two groups of reset springs 42, two groups of arc-shaped grooves 43 and clamping blocks 41 are arranged in a circumferential array mode relative to the axis of the seedling taking barrel 1, a clamping plate 5, the limiting mechanism 6 comprises an elastic rubber rod 61, a pressing block 62 and an arc-shaped inclined plate 63, the elastic rubber rod 61 is fixedly arranged at the upper end of the pressing block 62, the arc-shaped inclined plate 63 is fixedly arranged on the inner wall of the seedling taking barrel 1, one side of the arc-shaped inclined plate 63, which is far away from the inner wall of the seedling taking barrel 1, is provided with a circular arc groove 64, the elastic rubber rod 61 is in sliding connection with the arc-shaped inclined plate 63 through the circular arc groove 64, the limiting mechanism 6 is attached to an overground plastic film, then the elastic rubber rod 61 in the limiting mechanism 6 is enabled to move upwards through downward extrusion of the seedling taking barrel 1, the required force is larger when the elastic rubber rod 61 moves upwards, the pressing block 62 at the lower end of the elastic rubber rod 61 is enabled to press the plastic film to be tightly against the ground, meanwhile, the arc-shaped pressing plate 9 is torn to move in the direction tangential to the clamping plate 5 in the deformation process of the rubber inclined, the arc inclined plate 63 is arranged in a rotating and rising way, the inclined angle of the arc inclined plate 63 is closer to the axis of the seedling taking barrel 1 from the upper end, the circular arc groove 64 is closer to the axis of the seedling taking barrel 1 from the upper end, the range of the circular arc groove 64 is gradually increased from the lower end to the upper end, the spring arc plate 8 is fixedly arranged at the lower end of the rotating disc 4, the pressing arc block 7 is fixedly arranged at the lower end of the spring arc plate 8, the number of the spring arc plate 8 and the pressing arc block 7 is four, the spring arc plate 8 is arranged in an inclined way, the pressing arc block 7 is fixedly connected with the pressing arc block 7 through a triangular connecting rod, the four pressing arc blocks 7 are attached to the outer wall of the clamping plate 5, the spring arc plate 8 is driven to bend in the process of extruding with the ground through the pressing arc block 7, the rotating disc 4 is driven to rotate clockwise, and the rubber inclined rod 10 is driven to, the purpose of clockwise rotation is achieved, the tearing arc-shaped pressing plate 9 moves in the tangential direction of the plastic film and the clamping plate 5 when extruding the plastic film, the tearing force of the tearing arc-shaped pressing plate 9 on the plastic film is increased, the tearing effect is better, the lower end of the rotary disk 4 is fixedly connected with the rubber inclined rod 10, the lower end of the rubber inclined rod 10 is provided with the tearing arc-shaped pressing plate 9, the lower end of the rubber inclined rod 10 is fixedly connected with the rotating block 91, the middle part of the upper end of the tearing arc-shaped pressing plate 9 is provided with the arc-shaped cavity 92, the steel ball 94 is arranged in the arc-shaped cavity 92, the jacking spring 95 is arranged between the steel ball 94 and the steel ball 94, the rotating block 91 is clamped in the arc-shaped cavity 92, the outer wall of the rotating block 91 is fixedly provided with the fixed ring 93, the diameter of the fixed ring 93 is the same as that of the arc-shaped cavity 92, the tearing arc-shaped pressing plate 9 and the plastic film are always kept in a horizontal state, the plastic film can be quickly pressed, and meanwhile the plastic film is torn, so that a better tearing effect is achieved, a frame-shaped cavity 98 is formed in the lower end of the tearing arc-shaped pressing plate 9, an inclined groove 96 is formed in the inner upper end of the frame-shaped cavity 98, the inclined groove 96 is communicated with the frame-shaped cavity 98, a contact plate 902 is placed in the frame-shaped cavity 98, the left end and the right end of the contact plate 902 are obliquely arranged, the oblique parts of the left end and the right end of the contact plate 902 are respectively inserted into the two inclined grooves 96, a compression spring 97 is arranged in the inclined groove 96, the upper end of the compression spring 97 is fixedly connected with the inner wall of the inclined groove 96, the lower end of the compression spring 97 is fixedly connected with the contact plate 902, an elastic arc-shaped plate 907 is clamped at the upper end, a first inclined rod 99 and a second inclined rod 901 are respectively, the upper end of a first inclined rod 99 and the lower end of a second inclined rod 901 are respectively hinged with the inner wall of the upper end of an elastic arc plate 907 and the upper end of a contact plate 902, the first inclined rod 99 and the second inclined rod 901 are provided with a left group and a right group, a squeezing block 903 is arranged between the first inclined rod 99 and the second inclined rod 901 in a sliding way, one side of the squeezing block 903 is fixedly connected with a squeezing spring 904, the lower end of the second inclined rod 901 is hinged with a cutting knife plate 906, a knife blade groove 905 is arranged on the contact plate 902, the cutting knife plate 906 is inserted into the knife blade groove 905, the lower end of the contact plate 902 is provided with a knife inserting groove 908, a mudguard is arranged in the knife inserting groove 908 in a sliding way, the upper end of the mudguard 909 is fixedly provided with a push rod 910, one end of the push rod 910 is rotatably connected with the axle center of the knife inserting groove 908, the upper end of the push rod 910 is fixedly provided, the knife inserting groove 908 is arranged in an arc shape, the axis of the knife inserting groove 908 is the same as that of the cutting knife board 906, the cutting knife board 906 can retract into the knife blade groove 905 when being reset, contact and injury of an operator are effectively prevented, certain safety benefits are achieved, and meanwhile when soil is clamped in the knife inserting groove 908, the soil can be pushed out through the mud guard 909 and the mud pushing spring 911, the knife inserting groove 908 is prevented from being blocked, and the influence on next use is avoided.

When the seedling taking device is used, the holding rod 3 is held, the pull rod 2 is pulled upwards, four clamping plates 5 at the lower end of the seedling taking barrel 1 can be drawn close to the axis of the seedling taking barrel 1, then the clamping plates 5 are inserted into the ground forcibly and downwards when in a vertical state, the plastic film is torn, then the pressing block 62 can be contacted with the ground while being inserted downwards, the pressing block 62 can upwards press the elastic rubber rod 61, the elastic rubber rod 61 slides in the circular arc groove 64 of the arc-shaped inclined plate 63, and in the process of upwards sliding, due to the change of the angle direction and the angle of the circular arc groove 64, the elastic rubber rod 61 can upwards move with larger force, the pressing block 62 presses the plastic film on the ground, the arc-shaped blocks 7 are simultaneously contacted with the ground, in the process of inserting the clamping plates 5 into the ground, the arc-shaped blocks 7 are pressed by the ground, so that the spring arc-shaped plate 8 is bent, when the seedling tube is bent, the rotating disc 4 is enabled to exert a clockwise force, then the rotating disc 4 is enabled to rotate clockwise, the reset spring 42 in the arc-shaped groove 43 is enabled to be compressed, then the arc-shaped pressing plate 9 is torn to enable the rubber inclined rod 10 to bend anticlockwise in the process of being extruded with the ground, the bent rubber inclined rod 10 is enabled to move clockwise under the driving of the clockwise rotation of the rotating disc 4, meanwhile, the torn arc-shaped pressing plate 9 is driven to move clockwise in a direction tangent to the clamping plate 5, meanwhile, the steel ball 94 arranged in the arc-shaped cavity 92 at the upper end of the torn arc-shaped pressing plate 9 and the rotating block 91 are in rolling friction, the friction force is reduced, the torn arc-shaped pressing plate 9 and the ground can be kept in a horizontal state, meanwhile, when the seedling tube 1 is lifted upwards or inserted downwards, the fixed ring 93 is extruded through the jacking spring 95 and the steel ball 94, the torn arc-shaped pressing plate 9 can be kept in a horizontal state, and finally, when the torn, the contact plate 902 can compress the compression spring 97 upward, causing the contact plate 902 to press the elastic arc 907 upward, causing the elastic arc 907 to be deformed by the pressing, meanwhile, the first diagonal bar 99 and the second diagonal bar 901 approach each other under the pressure of the deformation of the elastic arc-shaped plate 907, which is extruded and deformed, tend to be horizontal, when the second inclined bar 901 is inclined to be horizontal, the cutter plate 906 whose lower end is hingedly connected is extruded out of the blade groove 905, so that the cutter plate 906 hooks the plastic film, and inserted into the knife inserting groove 908, so that the mud pushing plate in the knife inserting groove 908 pushes upwards and compresses the mud pushing spring 911, the mud pushing spring 911 makes the tearing arc-shaped pressing plate 9 hook the plastic film and achieves the purpose of good tearing effect, after the seedling is taken out, the mud flap 909 pushes mud out of the slot 908 under the resilience of the mud flap, while the first and second diagonal bars 99 and 901 are restored by the elastic force of the elastic arc plate 907 and the pressing spring 904.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a can tear seedling transplantation device of plastic film, is including getting a seedling section of thick bamboo (1), its characterized in that: get the equal fixed mounting in seedling section of thick bamboo (1) left and right sides and have holding rod (3), two holding rod (3) lower extreme all is equipped with pull rod (2), it is equipped with rotary disk (4) to get to overlap on seedling section of thick bamboo (1), and gets a seedling section of thick bamboo (1) and rotate with rotary disk (4) and be connected, arc wall (43) have been seted up to rotary disk (4) upper end, be equipped with reset spring (42) in arc wall (43), it has fixture block (41) to get a seedling section of thick bamboo (1) outer wall fixed mounting, fixture block (41) are located arc wall (43).

2. The seedling transplantation device capable of tearing a plastic film as set forth in claim 1, wherein: reset spring (42) one end and fixture block (41) fixed connection, and reset spring (42) other end and arc wall (43) inner wall fixed connection, reset spring (42), arc wall (43) and fixture block (41) quantity all is equipped with two sets ofly, two sets of reset spring (42), arc wall (43) and fixture block (41) are about getting a seedling section of thick bamboo (1) axis circumference array setting.

3. The seedling transplantation device capable of tearing a plastic film as set forth in claim 2, wherein: get a seedling section of thick bamboo (1) lower extreme and articulate and be connected with splint (5), it is equipped with stop gear (6) to get a seedling section of thick bamboo (1) lower extreme, stop gear (6) are including elastic rubber pole (61), briquetting (62) and arc swash plate (63), elastic rubber pole (61) fixed mounting is in the upper end of briquetting (62), arc swash plate (63) fixed mounting is at the inner wall of getting a seedling section of thick bamboo (1), arc swash plate (63) are kept away from one side of getting a seedling section of thick bamboo (1) inner wall and have been seted up circular arc groove (64), elastic rubber pole (61) are through circular arc groove (64) and arc swash plate (63) sliding connection.

4. The seedling transplantation device capable of tearing a plastic film as set forth in claim 3, wherein: arc swash plate (63) set up for rotatory rising, and arc swash plate (63) are more and more near to the inclination of getting a seedling section of thick bamboo (1) axis toward the upper end, circular arc groove (64) are more and more near the axis department of getting a seedling section of thick bamboo (1) toward the upper end, and are close to and get a seedling section of thick bamboo (1) axis range crescent from up circular arc groove (64) down.

5. The seedling transplantation device capable of tearing a plastic film as set forth in claim 3, wherein: the rotary plate is characterized in that a spring arc plate (8) is fixedly mounted at the lower end of the rotary plate (4), a pressing arc block (7) is fixedly mounted at the lower end of the spring arc plate (8), the spring arc plate (8) and the pressing arc block (7) are all provided with four blocks, the spring arc plate (8) is obliquely arranged, the pressing arc block (7) and the pressing arc block (7) are fixedly connected through a triangular connecting rod, and the four pressing arc blocks (7) are laminated with the outer wall of the clamping plate (5).

6. The seedling transplantation device capable of tearing a plastic film as set forth in claim 5, wherein: rotary disk (4) lower extreme fixedly connected with rubber down tube (10), rubber down tube (10) lower extreme is equipped with tears arc clamp plate (9), rubber down tube (10) lower extreme fixedly connected with turning block (91), arc clamp plate (9) upper end middle part has been seted up arc cavity (92) to tearing, steel ball (94) have been placed in arc cavity (92), jacking spring (95) have been placed between steel ball (94) and steel ball (94), turning block (91) card is established in arc cavity (92), turning block (91) outer wall fixed mounting has fixed ring (93).

7. The seedling transplantation device capable of tearing a plastic film as set forth in claim 6, wherein: the diameter of the fixed circular ring (93) is the same as that of the arc-shaped chamber (92), the steel ball (94) is in contact with the lower end of the fixed circular ring (93), and two thirds of the rotating block (91) is located in the arc-shaped chamber (92).

8. The seedling transplantation device capable of tearing a plastic film as set forth in claim 6, wherein: a frame-shaped cavity (98) is formed in the lower end of the tearing arc-shaped pressing plate (9), an inclined groove (96) is formed in the inner upper end of the frame-shaped cavity (98), the inclined groove (96) is communicated with the frame-shaped cavity (98), a contact plate (902) is placed in the frame-shaped cavity (98), the left end and the right end of the contact plate (902) are obliquely arranged, the oblique parts of the left end and the right end of the contact plate (902) are respectively inserted into the two inclined grooves (96), a compression spring (97) is arranged in the inclined groove (96), the upper end of the compression spring (97) is fixedly connected with the inner wall of the inclined groove (96), the lower end of the compression spring (97) is fixedly connected with the contact plate (902), an elastic arc-shaped plate (907) is clamped at the upper end of the contact plate (902), a first inclined rod (99) and a second inclined rod (901) are respectively arranged in the elastic arc-shaped plate (907), and the right ends of the first inclined rod (99) and the, the upper end of the first inclined rod (99) and the lower end of the second inclined rod (901) are respectively hinged with the inner wall of the upper end of the elastic arc-shaped plate (907) and the upper end of the contact plate (902), the first inclined rod (99) and the second inclined rod (901) are provided with a left group and a right group, an extrusion block (903) is arranged between the first inclined rod (99) and the second inclined rod (901) in a sliding manner through a sliding chute, one side of the extrusion block (903) is fixedly connected with an extrusion spring (904), the lower end of the second inclined rod (901) is hinged with a cutting knife plate (906), a knife blade groove (905) is formed in the contact plate (902), the cutting knife plate (906) is inserted into the knife blade groove (905), an inserting groove (908) is formed in the lower end of the contact plate (902), a mudguard (909) is arranged in the inserting groove (908), a push rod (910) is fixedly arranged at the upper end of the mudguard (909), one end of the push rod (910) is, the upper end of the push rod (910) is fixedly provided with a mud pushing spring (911), and the upper end of the mud pushing spring (911) is fixedly connected with the inner wall of the upper end of the knife inserting groove (908).

9. The seedling transplantation device capable of tearing a plastic film as set forth in claim 8, wherein: the blade groove (905) and the cutting knife plate (906) are both arranged in an arc shape, the knife inserting groove (908) is arranged in an arc shape, and the axle centers of the knife inserting groove (908) and the cutting knife plate (906) are the same.