Efficient and energy-saving granulator for PA66 nylon material production

Abstract

The invention discloses an efficient and energy-saving granulator for PA66 nylon material production, and relates to the field of nylon material production, the efficient and energy-saving granulator comprises a granulator body, an external heat storage cavity and a heat conduction pipe fitting, the external heat storage cavity is fixedly installed on the outer side of the granulator body, and the upper end of the external heat storage cavity is in butt joint with the heat conduction pipe fitting in a penetrating mode; and the heat conduction pipe fitting is in butt joint with the outer side of the granulator body. According to the efficient and energy-saving granulator for PA66 nylon material production, the self-adaptive movable structure is arranged, heat formed in the granulator body is recycled and conducted through the self-adaptive movable structure, and heat stored in the granulator body is stably released and supplied to the outer side of a forming and discharging channel through a supply butt joint pipe; and then the outer side of the discharged material is subjected to thermal constant-temperature treatment, the phenomenon that the material is broken when making direct contact with cold air is avoided, and heat conduction and recycling work is effectively conducted through large heat generated by equipment work.

Description

Technical Field

[0001] The invention relates to the technical field of nylon material production, in particular to a highly efficient and energy-saving granulator for producing PA66 nylon materials. Background Art

[0002] PA66 nylon material is a common industrial material. It needs to go through multiple steps in the process of processing and production, including granulation in its molding process. For example, a granulator for producing nylon materials disclosed in the patent with publication number CN209599627U includes a storage barrel, a feed pipe is provided on the outer wall of one side of the storage barrel, a metal cover is movably connected to the bottom end of the side wall of the storage barrel through a bearing, a motor is fixed to the middle position of the outer wall of the top end of the storage barrel by bolts, the output shaft of the motor passes through the outer wall of the top end of the storage barrel and is fixed to an auger rod by bolts, a through hole is opened in the middle position of the inner wall of the bottom end of the storage barrel, and the bottom end of the auger rod passes through the through hole and is fixed to the middle position of the inner wall of the bottom end of the metal cover by bolts, and the bottom end of the storage barrel is opened with discharge holes distributed radially at equal distances, and the discharge holes penetrate the outer wall of the bottom end of the metal cover; Another example is the patent with publication number CN113547661B for a granulator for nylon material production, which relates to the technical field of granulators. The granulator includes a cutting device for cutting and granulating nylon belts, and the cutting device is composed of a housing, a feed plate, a discharge plate, a driving roller rotatably arranged inside the housing, a driven roller used in conjunction with the driving roller, and a driving device for driving the driving roller and the driven roller. The limit groove on the outer wall of the driving roller is filled with a sponge pad. Since the driven roller has the same structure as the driving roller, the nylon belt can be better clamped to prevent the nylon belt from falling, and the surface of the nylon belt can be better dried. For example, the patent with publication number CN220719950U is used for producing nylon material granulator, which specifically relates to the field of nylon processing technology, including a granulator base, a moving wheel is provided at the lower end, a granulator working box is provided in the middle of the upper end of the granulator base, a concave limiting groove and a second motor are provided at the side end of the granulator working box, a discharge guide plate is provided on the inner end face of the granulator working box, and a ventilation hole is provided on the end face of the discharge guide plate. In actual use, the cutting roller, transmission roller, cutting support block, cutting limiting rod and limiting pressure wheel can effectively facilitate the cutting of the extruded nylon material; Most of the above-mentioned prior arts have improved their overall structure. However, during the operation of the existing PA66 nylon material production granulator, the large amount of heat generated by the equipment is mostly dissipated directly, and the heat cannot be effectively transferred and recycled, which leads to a certain waste of heat energy and thus has certain limitations in use. Summary of the invention

[0003] The purpose of the present invention is to provide a highly efficient and energy-saving granulator for the production of PA66 nylon materials, so as to solve the problem that the large amount of heat generated by the equipment during operation is mostly dissipated directly, and the heat cannot be effectively transferred and recovered, which leads to a certain waste of heat energy and thus has certain usage limitations.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highly efficient and energy-saving granulator for producing PA66 nylon materials, comprising a granulator body, an external heat storage cavity and a heat conduction pipe fitting, wherein the external heat storage cavity is fixedly installed on the outside of the granulator body, and the upper end of the external heat storage cavity is penetrated and connected with a heat conduction pipe fitting, and the heat conduction pipe fitting is connected with the outside of the granulator body; A molding and discharging channel is arranged at the lower end of the granulator body, a supply docking pipe fitting is penetrated and docked at the lower end of the external heat storage cavity, and the lower end of the supply docking pipe fitting corresponds to the outer side of the molding and discharging channel, and a docking movable disk is rotatably connected to the outer side of the granulator body, and an adaptive movable structure is arranged between the docking movable disk and the granulator body, and the heat generated inside the granulator body is recovered and conducted through the adaptive movable structure; a nested movable guide is nested and installed at the lower end of the outer side of the granulator body, and the lower end of the nested movable guide corresponds to the inner side of the molding and discharging channel, and an auxiliary guide structure is arranged between the nested movable guide and the inner side of the molding and discharging channel, and the connection state inside the molding and discharging channel is adaptively adjusted through the auxiliary guide structure.

[0005] Furthermore, the adaptive movable structure is provided with a guide movable rod, and the upper end of the guide movable rod is docked with the outer side of the docking movable disk, and the lower end of the guide movable rod is docked with a vertical positioning movable part, and the vertical positioning movable part is nested and docked with the outer side of the granulator body.

[0006] Furthermore, a fitting and docking piston member is fitted and docked on the inner side of the external heat storage cavity, and a first spring is fixedly connected to the upper end of the fitting and docking piston member, and the upper end of the first spring and the inner side of the external heat storage cavity are mutually docked, and a first docking steel wire rope is fixedly connected to the lower end of the fitting and docking piston member, and the first docking steel wire rope passes through along the inner side of the external heat storage cavity, and the end of the first docking steel wire rope is mutually docked with the lower end of the vertical positioning movable member; a docking supply through hole is opened on the inner side of the external heat storage cavity, and the docking supply through hole and the end of the heat conduction pipe fitting are mutually connected.

[0007] Furthermore, the heat conduction pipe transmits the heat generated by the output end of the granulator body to the external heat storage cavity for storage through the docking supply through hole; the docking movable plate drives the vertical positioning movable part to form a vertical sliding structure along the outer side of the granulator body through the guide movable rod, and the vertical positioning movable part drives the fitting docking piston part to move downward along the inner side of the external heat storage cavity through the first docking wire rope.

[0008] Furthermore, the fitting docking piston member forms an elastic structure along the inner side of the external heat storage cavity through the first spring, and in the normal state, the fitting docking piston member is located at the upper end of the docking supply through hole inside the external heat storage cavity through the first spring, and the heat conduction pipe conducts air supply to the inside of the external heat storage cavity through the docking supply through hole.

[0009] Furthermore, the auxiliary guiding structure is provided with a second docking steel wire rope, and the upper end of the second docking steel wire rope is docked with the lower end of the vertical positioning movable part, and the end of the second docking steel wire rope is docked with the upper end of the nested movable guide part; the lower end of the nested movable guide part is rotatably connected to the outer side with a movable toggle part.

[0010] Furthermore, a second spring is fixedly connected to the outer side of the movable toggle member, and the second spring is butted against the lower end of the nested movable guide member, a third butt-jointed steel wire rope is butt-jointed to the lower end of the movable toggle member, and the end of the third butt-jointed steel wire rope is butt-jointed against the inner side of the molding discharge channel.

[0011] Furthermore, when the vertical positioning movable part moves upward along the outer side of the granulator body, the vertical positioning movable part will drive the nested movable guide part to slide upward along the lower end of the molding and discharging channel through the second docking wire rope.

[0012] Furthermore, movable toggle members are distributed at equal angles on the outer side of the lower end of the nested movable guide member, and as the nested movable guide member rises, the movable toggle members will form a rotating structure along the lower end of the nested movable guide member through the traction force of the third docking steel wire rope whose end is fixed in relative position.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The highly efficient and energy-saving PA66 nylon material production granulator is provided with an adaptive movable structure, through which the heat generated inside the granulator body is recovered and conducted. During the operation of the equipment, the heat conduction pipe transmits the heat generated by the output end of the granulator body to the external heat storage cavity through the docking supply through hole for storage and treatment. At the same time, the docking movable plate drives the vertical positioning movable part to slide vertically along the outer side of the granulator body through the guide movable rod according to the drive of the equipment, so that the vertical positioning movable part drives the fitting docking piston part to move downward along the inner side of the external heat storage cavity through the first docking steel wire rope, and then the heat stored inside is stably released to the outer side of the forming discharge channel through the supply docking pipe, and then the outer side of the discharged material is subjected to thermal constant temperature treatment to avoid the phenomenon of breakage when it is directly in contact with cold air. The large heat generated by the operation of the equipment is effectively heat-conducted and recovered. Furthermore, when the fitting docking piston member is out of the force state, it will be reset to the upper end of the docking supply through hole along the inner side of the external heat storage cavity through the first spring, so that the heat transfer pipe member can continuously supply air to the inside of the external heat storage cavity through the docking supply through hole for conduction and storage. At the same time, the air supply state of the docking pipe member can meet the dust removal state of the lower end of the molding discharge channel, thereby preventing dust from sticking to the molding material, thereby improving the practicality of the device; Furthermore, an auxiliary guiding structure is provided, through which the connection state inside the molding and discharging channel is adaptively adjusted. When the vertical positioning movable part moves upward along the outer side of the granulator body, the vertical positioning movable part will drive the nested movable guide part to slide upward along the lower end of the molding and discharging channel through the second docking steel wire rope, thereby effectively performing reciprocating dredging processing on the material transmission end inside the molding and discharging channel to avoid accumulation and blockage.

[0014] Furthermore, when the nested movable guide member reciprocates along the inside of the molding and discharge channel, the movable toggle member will rotate outward along the nested movable guide member through the traction force of the third docking steel wire rope whose end is fixed in relative position as the nested movable guide member rises, thereby adaptively adjusting the dredging range according to the size of the internal cavity of the molding and discharge channel, avoiding blockage to the greatest extent and facilitating subsequent self-feeding processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a half-cut three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 For the present invention Figure 1 A schematic diagram of the partially enlarged structure; Figure 4It is a schematic diagram of the three-dimensional structure of the guide movable rod of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the heat conduction pipe fitting of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the docking movable disk of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the nested movable guide member of the present invention; Figure 8 Provides a three-dimensional structural schematic diagram of a butt-joint pipe fitting of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the vertical positioning movable part of the present invention.

[0016] In the figure: 1. Granulator body; 2. External heat storage cavity; 3. Heat transfer pipe; 4. Supply butt joint pipe; 5. Forming discharge channel; 6. Butt joint movable plate; 7. Guide movable rod; 8. Vertical positioning movable part; 9. First butt joint steel wire rope; 10. Fitting butt joint piston part; 11. First spring; 12. Butt joint supply through hole; 13. Second butt joint steel wire rope; 14. Nested movable guide part; 15. Movable toggle part; 16. Second spring; 17. Third butt joint steel wire rope. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1-9 The present invention provides the following technical solutions: A highly efficient and energy-saving granulator for producing PA66 nylon materials, comprising a granulator body 1, an external heat storage cavity 2, a heat conduction pipe 3, a supply butt pipe 4, a molding discharge channel 5, a butt movable disk 6, a guide movable rod 7, a vertical positioning movable part 8, a first butt joint steel wire rope 9, a fitting butt joint piston part 10, a first spring 11, a butt joint supply through hole 12, a second butt joint steel wire rope 13, a nested movable guide part 14, a movable toggle part 15, a second spring 16 and a third butt joint steel wire rope 17; An external heat storage cavity 2 is fixedly installed on the outside of the granulator body 1, and a heat transfer pipe 3 is connected to the upper end of the external heat storage cavity 2, and the heat transfer pipe 3 is connected to the outside of the granulator body 1; A molding and discharging channel 5 is provided at the lower end of the granulator body 1, a supply docking pipe 4 is penetrated and docked through the lower end of the external heat storage cavity 2, and the lower end of the supply docking pipe 4 corresponds to the outer side of the molding and discharging channel 5, and a docking movable disk 6 is rotatably connected to the outer side of the granulator body 1, and an adaptive movable structure is provided between the docking movable disk 6 and the granulator body 1, and the heat generated inside the granulator body 1 is recovered and conducted through the adaptive movable structure; the adaptive movable structure is provided with a guide movable rod 7, and the upper end of the guide movable rod 7 is docked with the outer side of the docking movable disk 6, and the lower end of the guide movable rod 7 is docked with a vertical positioning movable part 8, and the vertical positioning movable part 8 is nested and docked with the outer side of the granulator body 1.

[0019] The inner side of the external heat storage cavity 2 is fitted and docked with a fitting piston member 10, and the upper end of the fitting and docking piston member 10 is fixedly connected with a first spring 11, and the upper end of the first spring 11 is butted with the inner side of the external heat storage cavity 2, and the lower end of the fitting and docking piston member 10 is fixedly connected with a first docking steel wire rope 9, and the first docking steel wire rope 9 passes through the inner side of the external heat storage cavity 2, and the end of the first docking steel wire rope 9 is butted with the lower end of the vertical positioning movable member 8; a docking supply through hole 12 is opened on the inner side of the external heat storage cavity 2, and the docking supply through hole 12 is connected with the end of the heat conduction pipe 3. The heat transfer pipe 3 transfers the heat generated by the output end of the granulator body 1 to the external heat storage cavity 2 for storage through the docking supply through hole 12; the docking movable plate 6 drives the vertical positioning movable part 8 to form a vertical sliding structure along the outer side of the granulator body 1 through the guide movable rod 7, and the vertical positioning movable part 8 drives the fitting docking piston part 10 to move downward along the inner side of the external heat storage cavity 2 through the first docking wire rope 9; The fitting and docking piston member 10 forms an elastic structure along the inner side of the external heat storage cavity 2 through the first spring 11, and in the normal state, the fitting and docking piston member 10 is located at the upper end of the docking supply through hole 12 inside the external heat storage cavity 2 through the first spring 11, and the heat conduction pipe member 3 conducts air supply to the inside of the external heat storage cavity 2 through the docking supply through hole 12. During the operation of the equipment, the heat conduction pipe member 3 transfers the heat generated by the output end of the granulator body 1 to the external heat storage cavity 2 through the docking supply through hole 12 for storage and processing. At the same time, the docking movable disk 6 will follow the drive of the equipment and drive the vertical positioning movable member 8 to slide vertically along the outer side of the granulator body 1 through the guide movable rod 7, so that the vertical positioning movable member 8 drives the fitting and docking piston member 10 to move downward along the inner side of the external heat storage cavity 2 through the first docking steel wire rope 9, and then the heat stored in it is stably released to the outside of the forming discharge channel 5 through the supply docking pipe member 4, thereby discharging The outside of the material is subjected to thermal constant temperature treatment to avoid breakage and the like when it is in direct contact with cold air. The large amount of heat generated by the operation of the equipment is effectively used for heat conduction and recovery. When the fitting and docking piston member 10 is out of the stressed state, it will be moved up along the inner side of the external heat storage cavity 2 to the upper end of the docking supply through hole 12 through the first spring 11, so that the heat conduction pipe member 3 can continuously supply air to the inside of the external heat storage cavity 2 through the docking supply through hole 12 for conduction and storage. At the same time, the air supply state of the docking pipe member 4 can meet the dust removal state of the lower end of the molding discharge channel 5 to avoid dust sticking to the molding material.

[0020] Embodiment 2: Based on Embodiment 1, an auxiliary guiding structure is also disclosed, and its specific structure is as follows: A nested movable guide 14 is nested and installed at the lower end of the outer side of the granulator body 1, and the lower end of the nested movable guide 14 corresponds to the inner position of the molding and discharge channel 5, and an auxiliary guiding structure is arranged between the nested movable guide 14 and the inner side of the molding and discharge channel 5, and the connection state inside the molding and discharge channel 5 is adaptively adjusted through the auxiliary guiding structure.

[0021] The auxiliary guide structure is provided with a second butt joint steel wire rope 13, and the upper end of the second butt joint steel wire rope 13 is butt jointed with the lower end of the vertical positioning movable member 8, and the end of the second butt joint steel wire rope 13 is butt jointed with the upper end of the nested movable guide member 14; the lower end of the nested movable guide member 14 is rotatably connected to the outer side with a movable toggle member 15. The outer side of the movable toggle member 15 is fixedly connected with a second spring 16, and the second spring 16 is butt jointed with the lower end of the nested movable guide member 14, the lower end of the movable toggle member 15 is butt jointed with a third butt joint steel wire rope 17, and the end of the third butt joint steel wire rope 17 is butt jointed with the inner side of the molding discharge channel 5. In the process of the vertical positioning movable member 8 moving upward along the outer side of the granulator body 1, the vertical positioning movable member 8 will drive the nested movable guide member 14 to slide upward along the lower end of the molding discharge channel 5 through the second butt joint steel wire rope 13.

[0022] The outer side of the lower end of the nested movable guide 14 is provided with movable toggle members 15 at equal angles, and the movable toggle members 15 will form a rotating structure along the lower end of the nested movable guide 14 through the traction force of the third butt wire rope 17 whose end is fixed at a relative position as the nested movable guide 14 rises; in the process of the vertical positioning movable member 8 moving upward along the outer side of the granulator body 1, the vertical positioning movable member 8 will drive the nested movable guide 14 to slide upward along the lower end of the molding discharge channel 5 through the second butt wire rope 13, thereby The internal material transmission end effectively performs reciprocating dredging processing to avoid accumulation and blockage. When the nested movable guide 14 reciprocates along the inside of the molding and discharge channel 5, the movable toggle member 15 rises with the nested movable guide 14. The traction force of the third docking steel wire rope 17 with a fixed relative position at the end is then used to rotate outward along the nested movable guide 14, thereby adaptively adjusting the dredging range according to the size of the internal cavity of the molding and discharge channel 5, thereby avoiding blockage to the greatest extent and facilitating the subsequent self-feeding processing.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly efficient and energy-saving granulator for producing PA66 nylon materials, comprising a granulator body (1), an external heat storage cavity (2) and a heat transfer pipe (3), wherein the external heat storage cavity (2) is fixedly mounted on the outside of the granulator body (1), and the upper end of the external heat storage cavity (2) is penetrated and connected with the heat transfer pipe (3), and the heat transfer pipe (3) is connected with the outside of the granulator body (1); Features: The lower end of the granulator body (1) is provided with a forming and discharging channel (5); the lower end of the external heat storage cavity (2) is penetrated and docked with a supply docking pipe fitting (4), and the lower end of the supply docking pipe fitting (4) corresponds to the outer side of the forming and discharging channel (5); the outer side of the granulator body (1) is rotatably connected with a docking movable disk (6); an adaptive movable structure is provided between the docking movable disk (6) and the granulator body (1), and the heat generated inside the granulator body (1) is recovered and conducted through the adaptive movable structure; A nested movable guide (14) is nested and installed at the lower end of the outer side of the granulator body (1), and the lower end of the nested movable guide (14) corresponds to the inner side of the molding and discharge channel (5), and an auxiliary guide structure is provided between the nested movable guide (14) and the inner side of the molding and discharge channel (5), and the connection state inside the molding and discharge channel (5) is adaptively adjusted by the auxiliary guide structure.

2. The highly efficient and energy-saving granulator for producing PA66 nylon materials according to claim 1, characterized in that: The self-adaptive movable structure is provided with a guide movable rod (7), and the upper end of the guide movable rod (7) is butted against the outside of the butting movable plate (6), and the lower end of the guide movable rod (7) is butted against a vertical positioning movable member (8), and the vertical positioning movable member (8) is nested and butted against the outside of the granulator body (1).

3. The high-efficiency and energy-saving granulator for producing PA66 nylon materials according to claim 2, characterized in that: The inner side of the external heat storage cavity (2) is fitted and docked with a fitting and docking piston member (10), and the upper end of the fitting and docking piston member (10) is fixedly connected to a first spring (11), and the upper end of the first spring (11) and the inner side of the external heat storage cavity (2) are mutually docked, and the lower end of the fitting and docking piston member (10) is fixedly connected to a first docking steel wire rope (9), and the first docking steel wire rope (9) passes through the inner side of the external heat storage cavity (2), and the end of the first docking steel wire rope (9) and the lower end of the vertical positioning movable member (8) are mutually docked; A docking supply through hole (12) is provided on the inner side of the external heat storage cavity (2), and the docking supply through hole (12) and the end of the heat conduction pipe (3) are connected to each other.

4. The high-efficiency and energy-saving granulator for producing PA66 nylon materials according to claim 3 is characterized in that: The heat transfer pipe (3) transfers the heat generated by the working output end of the granulator body (1) to the external heat storage cavity (2) for storage through the docking supply through hole (12); The docking movable plate (6) drives the vertical positioning movable member (8) via the guide movable rod (7) to form a vertical sliding structure along the outer side of the granulator body (1), and the vertical positioning movable member (8) drives the fitting docking piston member (10) via the first docking wire rope (9) to move downward along the inner side of the external heat storage cavity (2).

5. The high-efficiency and energy-saving granulator for producing PA66 nylon materials according to claim 4, characterized in that: The fitting butt-jointed piston member (10) forms an elastic structure along the inner side of the external heat storage cavity (2) through the first spring (11), and in a normal state, the fitting butt-jointed piston member (10) is located at the upper end of the butt-jointed supply through hole (12) inside the external heat storage cavity (2) through the first spring (11), and the heat conduction pipe member (3) conducts air supply to the inside of the external heat storage cavity (2) through the butt-jointed supply through hole (12).

6. The high-efficiency and energy-saving granulator for producing PA66 nylon material according to claim 3 is characterized in that: The auxiliary guide structure is provided with a second butt-jointed steel wire rope (13), and the upper end of the second butt-jointed steel wire rope (13) is butt-jointed with the lower end of the vertical positioning movable member (8), and the end of the second butt-jointed steel wire rope (13) is butt-jointed with the upper end of the nested movable guide member (14); A movable toggle member (15) is rotatably connected to the outer side of the lower end of the nested movable guide member (14).

7. The high-efficiency and energy-saving granulator for producing PA66 nylon materials according to claim 6, characterized in that: The outer side of the movable toggle member (15) is fixedly connected to a second spring (16), and the second spring (16) and the lower end of the nested movable guide member (14) are butted against each other. The lower end of the movable toggle member (15) is butted against a third butting steel wire rope (17), and the end of the third butting steel wire rope (17) is butted against the inner side of the molding discharge channel (5).

8. The high-efficiency and energy-saving granulator for producing PA66 nylon materials according to claim 7, characterized in that: During the upward movement of the vertical positioning movable member (8) along the outer side of the granulator body (1), the vertical positioning movable member (8) will drive the nested movable guide member (14) to slide upward along the lower end of the molding and discharging channel (5) via the second docking steel wire rope (13).

9. The high-efficiency and energy-saving granulator for producing PA66 nylon materials according to claim 8, characterized in that: Movable toggle members (15) are distributed at equal angles on the outer side of the lower end of the nested movable guide member (14), and as the nested movable guide member (14) rises, the movable toggle member (15) forms a rotating structure along the lower end of the nested movable guide member (14) through the traction force of the third butt wire rope (17) whose end is relatively fixed.

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