Degradable braided bag and method for preparing the same

Abstract

The application discloses a degradable woven bag and a preparation method thereof, relates to the technical field of woven bags, and comprises a woven bag body, two hand-carrying wide bands are sewn on the outer side of the woven bag body, and a capacity-expanding assembly is attached to the outer side of the woven bag body, wherein the capacity-expanding assembly is used for increasing the storage space of the degradable woven bag. The capacity-expanding bag body is installed, the restriction on the fastening ropes is released by using the four pull assisting plates, then the four fastening ropes are sequentially moved out from the inner side of the four deep holes, then the four thin circular plates are extruded and moved to the outer side of the woven bag body, then the four thin circular plates are extruded and moved to the inner side of the woven bag body by hand, the closure of the deep holes is released by using the other four pull assisting plates, then the other four fastening ropes are fixed, and then the four thin circular plates are limited on the inner side of the woven bag body, so that the storage space of the woven bag is increased, and the practicability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of woven bags, in particular to a degradable woven bag and a preparation method thereof. BACKGROUND

[0002] The degradable woven bag is one of the indispensable devices in environmental protection and storage work. The raw material of the woven bag is generally various chemical plastic raw materials such as polyethylene and polypropylene, which is mainly used for containing and packaging various objects. However, the woven bag has poor environmental protection performance and can only be partially degraded in nature, and cannot be completely degraded. The degradable woven bag can meet the storage demand while avoiding environmental pollution to the greatest extent.

[0003] The existing woven bag has the following defects:

[0004] 1. Patent document: CN213414768U discloses a woven bag with high strength, which mainly considers how to solve the problem of length adjustment by the cooperation of torsional spring, shaft and back strap rope, etc., so as to achieve the effect of stable clamping. The cooperation of the plug rod, movable block and spring is used to achieve the effect of stable clamping. However, it does not consider how to expand the storage space of the woven bag, which reduces the functionality.

[0005] 2. Patent document: CN210365000U discloses a wear-resistant plastic woven bag, which mainly considers how to solve the problem of convenient opening and closing, and the practicality of the entire woven bag is strong, the service life is obviously prolonged, and the use cost of the user is reduced. However, it does not consider how to carry the woven bag more conveniently, which reduces the practicality. SUMMARY

[0006] The present application aims to provide a degradable woven bag and a preparation method thereof to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a degradable woven bag and a preparation method thereof, comprising a woven bag body, two hand-held wide belts are sewn on the outer side of the woven bag body, and an expansion assembly is pasted on the outer side of the woven bag body, the expansion assembly is used to increase the storage space of the degradable woven bag.

[0008] The expansion assembly includes a magic tape fur paste, the fur side of the magic tape fur paste is pasted with a magic tape paste, the outer side of the magic tape paste is sewn with an expansion bag body, the inner side of the woven bag body is sewn with two groups of hollow rope rings, four hollow rope rings are a group, and eight hollow rope rings are a group, the inner side of the eight hollow rope rings is respectively placed with a fastening rope, one end of the eight fastening ropes is respectively assembled with a confinement box, the inner side of the eight confinement boxes is respectively installed with a confinement plate through a spring, the inner side of the eight confinement boxes is respectively penetrated with a deep hole, the outer side of the woven bag body is penetrated with two groups of button holes, four button holes are a group, the inner side of the expansion bag body is fixed with four button connecting blocks, and the inner side of the four button connecting blocks is respectively assembled with a thin circular plate.

[0009] Preferably, the other side of the four confinement plates is respectively installed with a group of conductive plates, two conductive plates are a group, and the other end of the four groups of conductive plates is respectively fixed with a pull assisting plate.

[0010] Preferably, the four thin circular plates are respectively located on the inner side of the four fastening ropes.

[0011] Preferably, the top of the woven bag body is sewn with four restraint rings, the top of the woven bag body is fixed with a fastening block, the left side of the fastening block is penetrated with a wire passing groove, the bottom of the top wall of the fastening block is connected with a fastening pad through a spring, the top of the fastening pad is fixed with a circular stick, the top of the woven bag body is installed with a rope storage bag, and the rope storage bag is located on the right side of the fastening block, and the right side inner wall of the rope storage bag is fixed with a collection rope.

[0012] Preferably, the outer side of the woven bag body is sewn with a barrel connecting block, the front surface of the barrel connecting block is installed with a shoulder strap barrel, the inner side of the shoulder strap barrel is installed with two fixed rods, the outer side of the two fixed rods is respectively wound with a shoulder strap, and the other end of the two shoulder straps is respectively installed with a plastic barb.

[0013] Preferably, the outer side of the shoulder strap barrel is provided with a limiting arc groove, the inner side of the limiting arc groove is connected with an L-shaped extrusion plate through a spring, the outer side of the shoulder strap barrel is provided with a bag outlet square hole, and the inner side of the shoulder strap barrel is installed with a rubber body.

[0014] Preferably, the outer side of the expansion bag body is installed with a lock seat, the inner side of the lock seat is assembled with two threaded rings, the inner side of the two threaded rings is respectively connected with a threaded rod through a thread, and the other end of the two threaded rods is respectively fixed with a rotating disc.

[0015] Preferably, the preparation method of the degradable woven bag is as follows:

[0016] S1, the total material ratio of 70% of polypropylene, the total material ratio of 15% of polybutylene succinate, the total material ratio of 10% of polylactic acid, the total material ratio of 2% of titanium dioxide, the total material ratio of 1% of iron stearate, the total material ratio of 1% of bentonite and the total material ratio of 1% of lubricant are mixed uniformly in a high-speed mixer, the temperature is controlled at 60 DEG C, the mixing time is 15 minutes, after mixing uniformly, melt in a double screw extruder, then extrusion granulation, the extrusion temperature is 160 DEG C, and the biodegradable master batch is obtained;

[0017] S2, the biodegradable master batch prepared in the above step is drawn into a filament according to the specific woven bag density, the filament is woven into cloth by using a circular weaving machine in a warp and weft staggered manner, the woven cloth, coating material and paper or film are compounded or coated to obtain a tube cloth or a sheet cloth, and the obtained tube cloth can be cut and sewn to prepare the biodegradable woven bag.

[0018] Compared with the prior art, the application has the beneficial effects that:

[0019] 1、The expansion assembly is installed, the staff presses four pull assisting plates close to the top of the woven bag body to the side close to the confinement box in turn with hands, when the pull assisting plates are attached to the confinement box, the confinement plate releases the restriction on the fastening ropes, then the four fastening ropes are sequentially moved out from the inner side of the four deep holes, the restriction on the four thin circular plates is released, the four pull assisting plates close to the top of the woven bag body are released, then the four thin circular plates are extruded to pass through the four button holes, the four thin circular plates are moved to the outer side of the woven bag body, the restriction on the expansion bag body is released, the woven bag body is pulled to separate the magic tape fur from the magic tape fur, the expansion bag body is moved to the four thin circular plates being aligned with the four button holes close to the bottom of the woven bag body, then the four thin circular plates are extruded to pass through the four button holes close to the bottom of the woven bag body, the four thin circular plates are moved to the inner side of the woven bag body, the four pull assisting plates close to the bottom of the woven bag body are pressed to the side close to the confinement box, when the pull assisting plates are attached to the confinement box, the confinement plate releases the closure of the deep hole, then the four fastening ropes close to the bottom of the woven bag body are sequentially wound around the outer side of the button connecting block and then pass through the four deep holes close to the bottom of the woven bag body from the inner side, the four pull assisting plates close to the bottom of the woven bag body are released, the four fastening ropes close to the bottom of the woven bag body are fixed under the action of the elastic force, and then the four thin circular plates are restricted in the inner side of the woven bag body, so that the storage space of the woven bag is increased, and the practicability is improved.

[0020] 2、The shoulder straps are installed, staff pull two L-shaped extrusion plates along the inner side of the limiting arc groove to extrude the spring, the restriction on the bag outlet square hole is released, two plastic barbs are turned over and pulled through the inner side of the lock seat, the lock seat is located inside the two plastic barbs, and then the length of the two shoulder straps is adjusted according to the actual needs of the staff, and then the two L-shaped extrusion plates are released, the two L-shaped extrusion plates extrude the two shoulder straps along the inner side of the limiting arc groove under the action of the elastic force, the movement of the shoulder straps is limited, then the staff puts two arms through the inner side of the two shoulder straps, and then the woven bag is carried on the back, thereby providing convenience for staff of different sizes to carry the woven bag, and improving practicality. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the application;

[0022] Figure 2 It is a schematic diagram of the expansion bag body of the application;

[0023] Figure 3 It is a schematic diagram of the woven bag body of the application;

[0024] Figure 4 It is a schematic diagram of the hollow rope ring of the application;

[0025] Figure 5 It is a schematic diagram of the fastening rope structure of the application;

[0026] Figure 6 It is a schematic diagram of the confinement box structure of the application;

[0027] Figure 7 It is a schematic diagram of the fastening block structure of the application;

[0028] Figure 8 It is a schematic diagram of the rope storage bag structure of the application.

[0029] In the figure: 1, woven bag body; 2, hand-held wide band; 3, magic tape; 4, magic paste; 5, expansion bag body; 6, hollow rope ring; 7, fastening rope; 8, confinement box; 9, confinement plate; 10, conduction plate; 11, pull assisting plate; 12, deep hole; 13, button hole; 14, button connecting block; 15, thin circular plate; 16, restraint ring; 17, fastening block; 18, wire passing groove; 19, fastening pad; 20, round stick; 21, rope storage bag; 22, collection rope; 23, barrel connecting block; 24, shoulder strap barrel; 25, fixed rod; 26, shoulder strap; 27, plastic barb; 28, limiting arc groove; 29, L-shaped extrusion plate; 30, bag outlet square hole; 31, rubber body; 32, lock seat; 33, threaded ring; 34, threaded rod; 35, rotating disc. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work, fall within the protection scope of the present application.

[0031] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the present application provides an embodiment: a degradable woven bag and a preparation method thereof;

[0034] The utility model provides a kind of degradable woven bag, including woven bag body 1, two hand-carrying wide belts 2 are sewn on the outside of woven bag body 1, expansion assembly is pasted on the outside of woven bag body 1, expansion assembly is used to increase the accommodation space of the degradable woven bag, expansion assembly includes magic tape hair paste 3, the hair surface of magic tape hair paste 3 is pasted with magic tape paste 4, expansion bag body 5 is sewn on the outside of magic tape paste 4, two groups of hollow rope rings 6 are sewn on the inside of woven bag body 1, and four hollow rope rings 6 are a group, and the inside of eight hollow rope rings 6 is placed with fastening rope 7 respectively, one end of eight fastening ropes 7 is equipped with respectively with imprisonment box 8, the inside of eight imprisonment boxes 8 is installed with imprisonment plate 9 respectively by spring, the inside of eight imprisonment boxes 8 is respectively penetrated and set with deep hole 12, two groups of button holes 13 are penetrated and set on the outside of woven bag body 1, and four button holes 13 are a group, four button connecting blocks 14 are fixed in the inside of expansion bag body 5, four button connecting blocks 14 are equipped with thin round plate 15 respectively in the inside, another side of four imprisonment plates 9 is installed with a group of transmission plates 10 respectively, and two transmission plates 10 are a group, the other end of four groups of transmission plates 10 is fixed with pull assisting plate 11, four thin round plates 15 are respectively located in the inside of four fastening ropes 7.

[0035] Hand-carrying wide belt 2 is used for lifting woven bag body 1 when woven bag body 1 is filled with goods, four groups of transmission plates 10 can transmit the force of pull assisting plate 11 to imprisonment plate 9, button connecting block 14 can connect thin round plate 15 and expansion bag body 5 together.

[0036] The staff member presses the four pull assisting plates 11 close to the top of the woven bag body 1 to the side close to the imprisonment box 8 with hands, and when the pull assisting plates 11 are attached to the imprisonment box 8, the imprisonment plates 9 release the restriction on the fastening ropes 7, then the four fastening ropes 7 are moved out from the inner side of the four deep holes 12 in sequence, the restriction on the four thin round plates 15 is released, the four pull assisting plates 11 close to the top of the woven bag body 1 are released, then the four thin round plates 15 are pressed to pass through the four button holes 13, the four thin round plates 15 are moved to the outer side of the woven bag body 1 under the action of external force, the restriction on the expansion bag body 5 is released, the woven bag body 1 is pulled with hands to drive the magic tape fur 3 to separate from the magic tape paste 4, the expansion bag body 5 is moved to the position that the four thin round plates 15 are aligned with the four button holes 13 close to the bottom of the woven bag body 1, then the four thin round plates 15 are pressed to pass through the four button holes 13 close to the bottom of the woven bag body 1, the four thin round plates 15 are moved to the inner side of the woven bag body 1 under the action of external force, then the four pull assisting plates 11 close to the bottom of the woven bag body 1 are pressed to the side close to the imprisonment box 8 with hands, when the pull assisting plates 11 are attached to the imprisonment box 8, the imprisonment plates 9 release the closure of the deep holes 12, then the four fastening ropes 7 close to the bottom of the woven bag body 1 are passed through the four deep holes 12 close to the bottom of the woven bag body 1 from the outer side of the button connecting blocks 14 after being wound around the outer side of the button connecting blocks 14 in sequence, the four pull assisting plates 11 close to the bottom of the woven bag body 1 are released, the four pull assisting plates 11 close to the bottom of the woven bag body 1 fix the four fastening ropes 7 close to the bottom of the woven bag body 1 under the action of elastic force, and then the four thin round plates 15 are restricted in the inner side of the woven bag body 1, so that the storage space of the woven bag is increased, and the practicability is improved.

[0037] Please refer to Figure 1 、 Figure 2 、 Figure 7 and Figure 8 , the present application provides an embodiment: a degradable woven bag and a preparation method thereof.

[0038] The top of the woven bag body 1 is sewn with four restraint rings 16, the top of the woven bag body 1 is fixed with a fastening block 17, a wire passing groove 18 is formed in the left side of the fastening block 17, a fastening pad 19 is connected to the bottom of the top wall of the fastening block 17 through a spring, a round stick 20 is fixed to the top of the fastening pad 19, a rope storage bag 21 is installed on the top of the woven bag body 1 and located on the right side of the fastening block 17, and a binding rope 22 is fixed to the right side inner wall of the rope storage bag 21.

[0039] The fastening block 17 can provide a space for the wire passing groove 18;

[0040] The staff drives the collection rope 22 out of the inner side of the fastening block 17 with hands, and then drives the collection rope 22 to pass through the inner side of the four restraint rings 16 in turn, and then pulls the round stick 20 to move away from the side of the fastening block 17, the round stick 20 drives the fastening pad 19 to extrude the spring to release the restriction on the wire slot 18 under the action of external force, and then drives the collection rope 22 to pass through the inner side of the wire slot 18, and continues to pull the collection rope 22 to drive the four restraint rings 16 to close the top of the woven bag body 1, thereby preventing the articles contained in the inner side of the woven bag body 1 from falling off during the movement.

[0041] Please refer to Figure 1 、 Figure 7 and Figure 8 , the present application provides an embodiment: a degradable woven bag and a preparation method thereof;

[0042] The woven bag body 1 is sewn with a barrel connecting block 23 on the outer side, the barrel connecting block 23 is provided with a back-carrying barrel 24 on the front surface, two fixed rods 25 are installed on the inner side of the back-carrying barrel 24, shoulder straps 26 are wound on the outer sides of the two fixed rods 25 respectively, plastic barbs 27 are installed at the other ends of the two shoulder straps 26 respectively, a limiting arc groove 28 is formed on the outer side of the back-carrying barrel 24, an L-shaped extrusion plate 29 is connected to the inner side of the limiting arc groove 28 through a spring, a bag outlet square hole 30 is formed on the outer side of the back-carrying barrel 24, a rubber body 31 is installed on the inner side of the back-carrying barrel 24, a lock seat 32 is installed on the outer side of the expansion bag body 5, two threaded rings 33 are assembled on the inner side of the lock seat 32, threaded rods 34 are connected to the inner sides of the two threaded rings 33 through threads respectively, and rotary discs 35 are fixed to the other ends of the two threaded rods 34 respectively;

[0043] The woven bag body 1 can provide support for the barrel connecting block 23, the barrel connecting block 23 can provide support for the back-carrying barrel 24, the back-carrying barrel 24 can provide support for the fixed rods 25, the back-carrying barrel 24 can provide a placing space for the shoulder straps 26, the two shoulder straps 26 can provide support for the plastic barbs 27, the back-carrying barrel 24 can provide a forming space for the limiting arc groove 28, the limiting arc groove 28 can provide a moving space for the L-shaped extrusion plate 29, the back-carrying barrel 24 can provide a forming space for the bag outlet square hole 30, and the rubber body 31 is used to prevent articles from colliding with the back of the staff;

[0044] The staff pulls two L-shaped extrusion plates 29 along the inner side of the limiting arc groove 28 to extrude the spring and remove the restriction on the bag-out square hole 30. Turn over the two plastic barbs 27 and pull the two plastic barbs 27 through the inside of the lock seat 32, so that the lock seat 32 is located inside the two plastic barbs 27, and the two shoulder straps 26 are moved out from the inside of the shoulder strap barrel 24, then adjust the length of the two shoulder straps 26 according to the actual needs of the staff, and then release the two L-shaped extrusion plates 29, the two L-shaped extrusion plates 29 extrude the two shoulder straps 26 along the inner side of the limiting arc groove 28 under the action of the elastic force, and limit the movement of the shoulder straps 26, then the staff puts his arms through the inside of the two shoulder straps 26 and carries the woven bag on his back, thereby providing convenience for staff of different sizes to carry the woven bag and improving the practicality.

[0045] Further, the preparation method of the degradable woven bag is as follows:

[0046] S1, take 70% of the total material ratio of polypropylene, 15% of the total material ratio of polybutylene succinate, 10% of the total material ratio of polylactic acid, 2% of the total material ratio of titanium dioxide, 1% of the total material ratio of iron stearate, 1% of the total material ratio of bentonite, and 1% of the total material ratio of lubricant in a high-speed mixer, control the temperature at 60℃, the mixing time is 15 minutes, after mixing evenly, melt in a double screw extruder, then extrude and granulate, the extrusion temperature is 160℃, obtain the degradable master batch;

[0047] S2, the degradable master batch prepared in the above step is drawn into a filament according to the specific woven bag density, and the filament is woven into cloth by using a circular weaving machine in a warp and weft staggered manner, the woven cloth, coating material and paper or film are compounded or coated to obtain tube cloth or sheet cloth, and the obtained tube cloth can be cut and sewn to make a degradable woven bag.

[0048] Working principle: Before using the device, check whether the device has any problems that affect use. Workers use four pull assist plates 11 to remove the restraint of the fastening rope 7 by the restraint plate 9, then move the four fastening ropes 7 out of the inside of the four deep holes 12 in turn, then squeeze the four thin round plates 15 to move to the outside of the woven bag body 1, separate the magic tape hair 3 from the magic tape paste 4 by hand, then squeeze the four thin round plates 15 to move to the inside of the woven bag body 1, remove the closure of the deep hole 12 by using another four pull assist plates 11, then fix the other four fastening ropes 7, workers use hands to drive the collection rope 22 to pass through the inside of the four restraint rings 16, pull the round stick 20 to remove the restriction of the wire slot 18, then drive the collection rope 22 to drive the four restraint rings 16 to close the top of the woven bag body 1, pull the two L-shaped extrusion plates to remove the restriction of the bag outlet square hole 30, flip and pull the two plastic barbs 27, so that the lock seat 32 is located inside the two plastic barbs 27, then adjust the length of the two shoulder straps 26 according to the actual needs of the workers, and then release the two L-shaped extrusion plates 29 to limit the movement of the shoulder straps 26, then workers put their arms through the inside of the two shoulder straps 26, and then carry the woven bag on their backs.

[0049] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present application is thus not limited to the examples described hereinabove; on the contrary, it encompasses any changes that come within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A degradable braided bag, characterized by: Including the woven bag body (1), two hand-held wide bands (2) are sewn on the outer side of the woven bag body (1), and a capacity expansion assembly is pasted on the outer side of the woven bag body (1), which is used to increase the storage space of the degradable woven bag; The capacity expansion assembly includes a magic tape (3), the outer side of the magic tape (3) is pasted with a magic tape (4), the outer side of the magic tape (4) is sewn with a capacity expansion bag body (5), the inner side of the woven bag body (1) is sewn with two groups of hollow rope rings (6), four hollow rope rings (6) are a group, the inner side of the eight hollow rope rings (6) is respectively placed with a fastening rope (7), one end of the eight fastening ropes (7) is respectively equipped with a confinement box (8), the inner side of the eight confinement boxes (8) is respectively installed with a confinement plate (9) through a spring, the inner side of the eight confinement boxes (8) is respectively penetrated with a deep hole (12), the outer side of the woven bag body (1) is penetrated with two groups of button holes (13), four button holes (13) are a group, the inner side of the capacity expansion bag body (5) is fixed with four button connecting blocks (14), the inner side of the four button connecting blocks (14) is respectively equipped with a thin circular plate (15).

2. A degradable woven bag according to claim 1, wherein: The other side of the eight confinement plates (9) is respectively installed with a group of conductive plates (10), two conductive plates (10) are a group, the other end of the eight groups of conductive plates (10) is respectively fixed with a pull assisting plate (11).

3. A degradable woven bag according to claim 1, wherein: Four thin circular plates (15) are respectively located on the inner side of the four fastening ropes (7).

4. A degradable woven bag according to claim 1, wherein: The top of the woven bag body (1) is sewn with four restraint rings (16), the top of the woven bag body (1) is fixed with a fastening block (17), the left side of the fastening block (17) is penetrated with a wire passing groove (18), the top wall bottom of the fastening block (17) is connected with a fastening pad (19) through a spring, the top of the fastening pad (19) is fixed with a round stick (20), the top of the woven bag body (1) is installed with a rope storage bag (21), and the rope storage bag (21) is located on the right side of the fastening block (17), the right side inner wall of the rope storage bag (21) is fixed with a binding rope (22).

5. A degradable woven bag according to claim 4, wherein: The outer side of the woven bag body (1) is sewn with a barrel connecting block (23), the front of the barrel connecting block (23) is installed with a shoulder strap barrel (24), the inner side of the shoulder strap barrel (24) is installed with two fixed rods (25), the outer side of the two fixed rods (25) is respectively wound with a shoulder strap (26), the other end of the two shoulder straps (26) is respectively installed with a plastic barb (27).

6. A degradable woven bag according to claim 5, wherein: The outer side of the shoulder strap barrel (24) is provided with a limiting arc groove (28), the inner side of the limiting arc groove (28) is connected with an L-shaped extrusion plate (29) through a spring, the outer side of the shoulder strap barrel (24) is provided with a bag outlet square hole (30), and the inner side of the shoulder strap barrel (24) is installed with a rubber body (31).

7. A degradable woven bag according to claim 1, wherein: The outer side of the capacity expansion bag body (5) is installed with a lock seat (32), the inner side of the lock seat (32) is equipped with two threaded rings (33), the inner side of the two threaded rings (33) is respectively connected with a threaded rod (34) through a thread, the other end of the two threaded rods (34) is respectively fixed with a rotating disc (35).

8. The preparation method of the degradable woven bag according to any one of claims 1-7, wherein the preparation method of the degradable woven bag is as follows: S1, taking 70% of the total material ratio of polypropylene, 15% of the total material ratio of polybutylene succinate, 10% of the total material ratio of polylactic acid, 2% of the total material ratio of titanium dioxide, 1% of the total material ratio of iron stearate, 1% of the total material ratio of bentonite and 1% of the total material ratio of lubricant, mixing them uniformly in a high-speed blender, controlling the temperature at 60°C, mixing for 15 minutes, then adding them into a double screw extruder for melting, then extruding and granulating, the extrusion temperature is 160°C, obtaining the degradable master batch; S2, drawing the degradable master batch obtained in the previous step into a filament according to the specific density of the woven bag, weaving the filament into cloth by using a circular weaving machine in a warp and weft staggered manner, compounding or coating the woven cloth, coating material and paper or film, obtaining tube cloth or sheet cloth, then cutting and sewing the obtained tube cloth to make the degradable woven bag. ​ ​

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