A textile yarn tension testing device

Abstract

This invention relates to the field of yarn tension testing technology, specifically to a textile yarn tension testing device. The device includes a main frame, a force gauge adapted and installed inside the top of the main frame, two fixed rollers rotatably connected inside the main frame, a motor adapted and installed on the outer side of the back of the main frame, a take-up reel located outside the motor's output end, and two adjusting rollers located inside the main frame. In this invention, the yarn is fixed to the take-up reel after a series of windings. Upon starting the motor, a rotating rod and a disc drive the take-up reel to rotate, thus winding the yarn. Simultaneously, the tension generated during winding is transmitted to the force gauge via a hook to measure the yarn tension. This design allows winding and tension measurement to be performed simultaneously, improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of yarn tension testing technology, specifically to a textile yarn tension testing device. Background Technology

[0002] Yarn, as a basic building block of textiles, is a long, thin material made from various textile fibers through processing. It possesses different fineness and strengths and is widely used in weaving fabrics, manufacturing ropes, sewing threads, knitting, and embroidery. Yarn comes in many forms, including staple fiber yarn and continuous filament, and is an indispensable basic material for various textiles. In practical applications, yarn and wool are not only used to weave warm clothing such as sweaters, trousers, and vests, but also frequently used to make accessories such as scarves, hats, and gloves. Besides providing essential warmth, they also offer excellent decorative effects, adding color to people's daily lives.

[0003] However, tension testing of yarn before use is a crucial step in ensuring product quality. Tension testing assesses the strength and durability of the yarn, which is essential for guaranteeing the quality and performance of textiles. Currently, existing tension testing devices have some limitations. They typically cannot perform tension testing simultaneously with yarn winding, requiring the testing to be completed before winding, which undoubtedly increases workload and reduces production efficiency. Furthermore, existing tension testing devices often struggle to accurately measure the yarn's ultimate tension value, affecting the accuracy and reliability of the measurement results and limiting their application in actual production. Summary of the Invention

[0004] The purpose of this invention is to provide a textile yarn tension testing device to solve at least one technical problem existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a textile yarn tension testing device, comprising a main frame, a force gauge adapted and installed inside the top of the main frame, and two fixed rollers rotatably connected inside the main frame, and further comprising:

[0006] The system includes a motor mounted on the outer side of the back of the main frame, a take-up reel located on the outer side of the motor output end, and adjusting rollers one and two located inside the main frame.

[0007] Preferably, a guide groove is provided on the outer side of the main frame, a circular hole is provided on the outer side of the main frame, a limit groove is provided on the inner wall of the circular hole, a shallow positioning hole is provided on the outer side of the main frame, a deep positioning hole is provided on the outer side of the main frame, and a slide rod is slidably connected to the bottom end of the guide groove.

[0008] The deep positioning holes are configured in two sets, and the shallow positioning holes are configured in three sets. The two ends of the first adjusting roller and the second adjusting roller are located inside the guide groove and slide along the inside of the guide groove.

[0009] Preferably, a support block is fixedly connected to the top end of the slide rod, and a spring is fixedly connected to the bottom end of the slide rod;

[0010] The support block slides inside the guide groove, and the other end of the spring is fixedly connected to the inside of the main frame.

[0011] Preferably, the force gauge has a bolt on its outer side and a hook at its bottom end, and the force gauge is installed on the top of the main frame by means of the bolt.

[0012] Preferably, a rotating rod is fixedly connected to the output end of the motor, a disc is fixedly connected to the outer side of the rotating rod, a long rod is fixedly connected to one end of the disc, and an annular groove is formed on the outer side of the rotating rod.

[0013] Preferably, a sliding cavity is provided at one end of the winding reel, a movable rod is rotatably connected to one end of the winding reel, a ball is fixedly connected to the inner wall of the movable rod, and a limit strip is fixedly connected to the outer side of the movable rod;

[0014] The movable rod is disposed inside the circular hole, the limiting strip is located inside the limiting groove, the take-up reel is sleeved on the outside of the rotating rod, the long rod is slidably connected inside the sliding cavity, and the sphere is located inside the annular groove.

[0015] Preferably, a connecting rod is slidably connected to the outer side of the adjusting roller, and a handle is fixedly connected to the outer side of the connecting rod.

[0016] Preferably, a positioning rod is slidably connected inside the connecting rod, a spring is sleeved on the outside of the positioning rod, and a pin is fixedly connected to the outside of the connecting rod.

[0017] One end of the second spring is fixedly connected to the first positioning rod, and the other end is fixedly connected to the inner wall of the first connecting rod. The first positioning rod is engaged with the shallow positioning hole.

[0018] Preferably, a connecting rod is fixedly connected to the outer side of the adjusting roller two, and a handle is fixedly connected to the outer side of the connecting rod two.

[0019] Preferably, a positioning rod 2 is slidably connected inside the connecting rod 2, a spring 3 is sleeved on the outside of the positioning rod 2, and a slot is opened inside the positioning rod 2;

[0020] One end of the spring three is fixedly connected to the positioning rod two, and the other end is fixedly connected to the inner wall of the connecting rod two. One side of the slot is set as an inclined surface. The positioning rod two is engaged with the deep positioning hole. The overall length of the positioning rod two is greater than the overall length of the positioning rod one. The pin cooperates with the slot to adjust the position of the positioning rod two.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. After the yarn is wound through a series of loops, it is fixed on the take-up reel. After the motor is started, the rotating rod and the disc drive the take-up reel to rotate, thereby winding the yarn. At the same time, the tension generated during winding is transmitted to the force gauge through the hook to measure the yarn tension. This design allows winding and tension measurement to be performed simultaneously, improving work efficiency.

[0023] Second, when the motor is running, the rotating rod not only drives the take-up reel to rotate, but also achieves the reciprocating sliding of the take-up reel through the sliding of the annular groove, the ball, the movable rod and the limiting strip in the limiting groove. This design allows the take-up reel to adjust its position while rotating, ensuring that the yarn is wound evenly and improving the winding quality. At the same time, the reciprocating sliding of the take-up reel changes the tension on the hook, allowing the measurement of the yarn tension threshold, thereby more accurately grasping the yarn condition and enhancing the practicality of the equipment.

[0024] 3. The operator holds handle one and handle two and presses them downwards. Handle two is fixed by positioning rod two into the deep positioning hole. Handle one drives adjusting roller one to slide along the guide groove, squeezing the support block until it is in contact with the bottom of the guide groove. Positioning rod one and spring two work together to fix adjusting roller one. In this way, adjusting roller one and fixed roller one are in contact, increasing yarn tension and facilitating the measurement of ultimate tension. If adjusting roller two needs to be adjusted, first push handle one to insert the pin into the slot of positioning rod two, then press the handle. Positioning rod two will slide and adjust, eventually engaging with the deep positioning hole on the lower side, thus achieving contact between fixed roller two and adjusting roller two. This process improves the adjustment flexibility and practicality of the equipment. The operator can perform relative operations according to different situations and different yarns, thereby achieving the measurement of the ultimate tension of different yarns. Attached Figure Description

[0025] Figure 1 This is an overall schematic diagram of the textile yarn tension testing device of the present invention.

[0026] Figure 2 This is a frontal overall schematic diagram of the textile yarn tension testing device of the present invention.

[0027] Figure 3 This is a side view of the overall structure of the textile yarn tension testing device of the present invention.

[0028] Figure 4This is an enlarged schematic diagram of part A of the present invention;

[0029] Figure 5 This is a cross-sectional view of the yarn winding roller of the present invention;

[0030] Figure 6 This is an exploded view of the present invention;

[0031] Figure 7 This is a cross-sectional view of the reel of the present invention;

[0032] Figure 8 This is a first sectional view of the main frame of the present invention;

[0033] Figure 9 This is a schematic diagram showing the exploded view of the present invention;

[0034] Figure 10 This is a schematic diagram of the second sectional view of the main frame of the present invention;

[0035] Figure 11 This is a partial overall schematic diagram of the present invention;

[0036] Figure 12 This is an enlarged schematic diagram of part B of the present invention;

[0037] In the diagram: Main frame 1; Force gauge 2; Fixed roller 1 3; Fixed roller 2 4; Motor 5; Reel 6; Adjusting roller 1 7; Adjusting roller 2 8; Guide groove 11; Round hole 12; Limiting groove 13; Shallow positioning hole 14; Deep positioning hole 15; Slide rod 16; Support block 161; Spring 162; Bolt 21; Hook 22; Rotating rod 51; Disc 52; Long rod 53; Annular groove 54; Slide cavity 61; Ball 62; Movable rod 63; Limiting strip 64; Connecting rod 1 71; Handle 1 72; Positioning rod 1 711; Spring 2 712; Pin 713; Connecting rod 2 81; Handle 2 82; Positioning rod 2 811; Spring 3 812; Slot 813. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1;

[0040] Please see Figures 1-6 The present invention provides a technical solution: a textile yarn tension testing device, comprising a main frame 1, a force gauge 2 adapted and installed inside the top of the main frame 1, and fixed roller 3 and fixed roller 4 rotatably connected inside the main frame 1, and further comprising:

[0041] The motor 5 is adapted to be installed on the outer side of the back of the main frame 1, the take-up reel 6 is set on the outer side of the output end of the motor 5, and the adjusting roller 7 and adjusting roller 8 are set inside the main frame 1.

[0042] Preferably, the force gauge 2 is provided with a bolt 21 on the outside and a hook 22 at the bottom of the force gauge 2, and the force gauge 2 is installed on the top of the main frame 1 by means of the bolt 21.

[0043] Preferably, a rotating rod 51 is fixedly connected to the output end of the motor 5, a disc 52 is fixedly connected to the outer side of the rotating rod 51, a long rod 53 is fixedly connected to one end of the disc 52, and an annular groove 54 is provided on the outer side of the rotating rod 51.

[0044] When it is necessary to wind up the yarn, then refer to the attached... Figure 4 After the yarn passes through the fixed roller 3, the adjusting roller 7, the hook 22, the fixed roller 4, and the adjusting roller 8 in sequence, it is fixed on the outside of the take-up reel 6.

[0045] Next, the operator starts the motor 5. After the motor 5 starts running, it will drive the rotating rod 51 at the output end of the motor 5 to rotate. The rotating rod 51 will drive the disc 52 fixed on its outer side to rotate. The long rod 53 on the outer side of the disc 52 is inserted into the sliding cavity 61 on the outer side of the take-up reel 6, which will drive the take-up reel 6 to rotate, thereby completing the winding of the yarn.

[0046] At the same time, as the winding reel 6 rotates to wind the yarn, it also causes the yarn to become taut, thus applying pressure to the hook 22 and ultimately transmitting it to the force gauge 2. The force gauge 2 can then measure the tension of the yarn. Because the yarn is continuously being wound, a comprehensive tension measurement of the wound yarn can be performed, allowing for a more accurate understanding of the tension of the entire yarn.

[0047] Compared to traditional transmission methods that require tension testing of the yarn before winding, this equipment can perform both winding and measurement in one integrated process, effectively improving overall efficiency.

[0048] In summary, the yarn is fixed on the take-up reel 6 after a series of windings. After starting the motor 5, the rotating rod 51 and the disc 52 drive the take-up reel 6 to rotate, thus winding the yarn. Simultaneously, the tension generated during winding is transmitted to the force gauge 2 via the hook 22 to measure the yarn tension. This design allows winding and tension measurement to be performed simultaneously, improving work efficiency.

[0049] Example 2 improves upon Example 1 with a more detailed process; see the attached image for details. Figure 6 and Figure 7 ;

[0050] It should be noted that a sliding cavity 61 is provided at one end of the winding reel 6, and a movable rod 62 is rotatably connected to one end of the winding reel 6. A ball 63 is fixedly connected to the inner wall of the movable rod 62, and a limit strip 64 is fixedly connected to the outer side of the movable rod 63.

[0051] Among them, the movable rod 63 is set inside the circular hole 12, the limiting strip 64 is located inside the limiting groove 13, the winding reel 6 is sleeved on the outside of the rotating rod 51, the long rod 53 is slidably connected inside the sliding cavity 61, and the ball 62 is located inside the annular groove 54.

[0052] While the motor 5 operates and drives the take-up reel 6 to rotate via the rotating rod 51, the cooperation between the annular groove 54 and the ball 63, as well as the design of the limiting strip 64 on the outside of the movable rod 62 sliding inside the limiting groove 13, causes the rotating rod 51 to continuously drive the movable rod 62 to slide back and forth inside the circular hole 12. The rotating rod 51 then drives the take-up reel 6 to slide back and forth while rotating.

[0053] The reciprocating sliding and rotating design of the take-up reel 6 ensures that its position is constantly adjusted during the winding process, guaranteeing that the yarn is evenly wound around the outside of the take-up reel 6, thereby improving the winding quality. As the take-up reel 6 reciprocates and adjusts its position, it also changes the tension of the yarn on the hook 22, enabling the measurement of the yarn tension threshold. This allows personnel to more accurately understand the yarn tension, further enhancing the practicality of the equipment.

[0054] In summary, when motor 5 is running, the rotating rod 51 not only drives the winding reel 6 to rotate, but also achieves the reciprocating sliding of the winding reel 6 through the sliding of the annular groove 54, the ball 63, the movable rod 62, and the limiting strip 64 within the limiting groove 13. This design allows the winding reel to adjust its position while rotating, ensuring uniform yarn winding and improving winding quality. Simultaneously, the reciprocating sliding of the winding reel 6 changes the tension on the hook 22, allowing for the measurement of the yarn tension threshold, thus providing a more accurate understanding of the yarn condition and enhancing the practicality of the equipment.

[0055] Example 3 is a further detailed description based on Example 2 above, which can be found in the following reference. Figures 8-12 The specific method is as follows:

[0056] Furthermore, a guide groove 11 is provided on the outer side of the main frame 1, a round hole 12 is provided on the outer side of the main frame 1, a limit groove 13 is provided on the inner wall of the round hole 12, a shallow positioning hole 14 is provided on the outer side of the main frame 1, a deep positioning hole 15 is provided on the outer side of the main frame 1, and a slide rod 16 is slidably connected to the bottom end of the guide groove 11.

[0057] Among them, there are two sets of deep positioning holes 15 and three sets of shallow positioning holes 14. The two ends of the adjusting roller 1 7 and the adjusting roller 2 8 are located inside the guide groove 11 and slide along the inside of the guide groove 11.

[0058] Furthermore, a support block 161 is fixedly connected to the top of the slide rod 16, and a spring 162 is fixedly connected to the bottom of the slide rod 16.

[0059] Among them, the support block 161 slides inside the guide groove 11, and the other end of the spring 162 is fixedly connected to the inside of the main frame 1.

[0060] It should be noted that a connecting rod 71 is slidably connected to the outer side of the adjusting roller 7, and a handle 72 is fixedly connected to the outer side of the connecting rod 71.

[0061] Furthermore, a positioning rod 711 is slidably connected inside the connecting rod 71, a spring 712 is sleeved on the outside of the positioning rod 711, and a pin 713 is fixedly connected to the outside of the connecting rod 71.

[0062] One end of the second spring 712 is fixedly connected to the first positioning rod 711, and the other end is fixedly connected to the inner wall of the first connecting rod 71. The first positioning rod 711 is engaged with the shallow positioning hole 14.

[0063] Furthermore, a connecting rod 81 is fixedly connected to the outer side of the adjusting roller 8, and a handle 82 is fixedly connected to the outer side of the connecting rod 81.

[0064] Preferably, a positioning rod 811 is slidably connected inside the connecting rod 81, a spring 812 is sleeved on the outside of the positioning rod 811, and a slot 813 is opened inside the positioning rod 811;

[0065] One end of spring 3 812 is fixedly connected to positioning rod 2 811, and the other end is fixedly connected to the inner wall of connecting rod 2 81. One side of slot 813 is set as a slope. Positioning rod 2 811 is engaged with deep positioning hole 15. The overall length of positioning rod 2 811 is greater than the overall length of positioning rod 1 711. Pin 713 cooperates with slot 813 to adjust the position of positioning rod 2 811.

[0066] The operator holds handle 72 and handle 82 respectively and presses them down. Since handle 82 is fully inserted into the deep positioning hole 15 through positioning rod 811, it cannot be moved down.

[0067] At this time, the handle 72 will drive the adjusting roller 7 to slide along the inside of the guide groove 11 under pressure, and squeeze the support block 161 until the support block 161 is completely in contact with the bottom end of the guide groove 11. During the pressing process, the positioning rod 711 will slide out from the shallow positioning hole 14 on the upper side in cooperation with the spring 712. After the support block 161 is completely in contact with the bottom end of the guide groove 11, the elasticity of the spring 712 will drive the positioning rod 711 to engage in the shallow positioning hole 14 directly below the shallow positioning hole 14 on the upper side, thereby fixing the adjusting roller 7.

[0068] At this time, the adjusting roller 7 is in contact with the fixed roller 3 to squeeze the winding yarn and rub it. As the winding reel 6 continues to rotate, the tension of the yarn increases, which allows the ultimate tension of the yarn to be measured, thus improving the measurement range of the equipment and its practicality.

[0069] When it is necessary to adjust the second roller 8, push the first handle 72 before pressing it down. This will cause the pin 713 at one end of the first connecting rod 71 to be inserted into the slot 813 of the second positioning rod 811. The inclined surface of the slot 813 will cause the second positioning rod 811 to slide and adjust inside the deep positioning hole 15. Then, press the first handle 72 and the second handle 82 at the same time. This will cause the second positioning rod 811 to leave the upper deep positioning hole 15 and engage with the lower deep positioning hole 15. At the same time, the first positioning rod 711 is engaged in the shallow positioning hole 14 located to the right of the lower deep positioning hole 15. Finally, the first adjusting roller 7 and the first fixed roller 3 are in contact, and the second fixed roller 4 and the second adjusting roller 8 are in contact.

[0070] Therefore, operators can perform corresponding operations according to different situations and different yarns, thereby measuring the ultimate tension of different yarns and further improving the practicality of the equipment.

[0071] In summary, the operator holds handle 72 and handle 82 and presses them downwards. Handle 82 is fixed in place by positioning rod 811, which engages with the deep positioning hole 15. Handle 72 drives adjusting roller 7 to slide along guide groove 11, pressing the support block 161 until it is in contact with the bottom of guide groove. Positioning rod 711 and spring 712 work together to fix adjusting roller 7. In this way, adjusting roller 7 is in contact with fixed roller 3, increasing yarn tension and facilitating the measurement of ultimate tension.

[0072] To adjust the adjusting roller 28, first push the handle 72 to insert the pin 713 into the slot 813 of the positioning rod 2811. Then press the handle; the positioning rod 2811 will slide and adjust, eventually engaging with the lower deep positioning hole 15, thus achieving contact between the fixed roller 24 and the adjusting roller 28. This process improves the adjustment flexibility and practicality of the equipment, allowing operators to perform relative operations based on different situations and different yarns, thereby enabling the measurement of the ultimate tension of different yarns.

[0073] Example 4: This example is based on the overall operation of the above examples and can be referred to as follows. Figures 1-12 The specific method is as follows:

[0074] During the yarn winding operation, the yarn sequentially passes through fixed roller 3, adjusting roller 7, hook 22, fixed roller 4, and adjusting roller 8, finally winding onto the winding reel 6. The operator starts the motor 5, whose rotating rod 51 drives the disc 52 and the long rod 53, causing the winding reel 6 to rotate and complete the winding process. During this process, the yarn tension is transmitted to the force gauge 2 via hook 22 for real-time monitoring.

[0075] When motor 5 is working, rotating rod 51 drives winding reel 6 to rotate and reciprocate. This action is achieved by sliding annular groove 54, ball 63, movable rod 62, and limiting strip 64 within limiting groove 13. This design helps to evenly wind the yarn, improve winding quality, and measure the yarn tension limit by changing the tension on hook 22.

[0076] The operator grips handle 72 and 82, with handle 82 fixed in the deep positioning hole 15 by positioning rod 811. Movement of handle 72 pushes adjusting roller 7 to slide along guide groove 11, squeezing support block 161, which is fixed in position by positioning rod 711 and spring 712, increasing friction and tension on the yarn. To adjust adjusting roller 8, the operator pushes handle 72, inserting pin 713 into slot 813 of positioning rod 811, then presses the handle, causing positioning rod 811 to slide into the lower deep positioning hole 15 and engage, achieving contact between fixed roller 4 and adjusting roller 8. This adjustment mechanism improves the equipment's adaptability to different types of yarn and the accuracy of tension measurement.

[0077] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A textile yarn tension testing device, comprising a main frame (1), a force gauge (2) adapted to be installed inside the top of the main frame (1), and a fixed roller one (3) and a fixed roller two (4) rotatably connected inside the main frame (1), further comprising: The motor (5) is adapted to be installed on the outer side of the back of the main frame (1), the winding reel (6) is set on the outer side of the output end of the motor (5), and the adjusting roller one (7) and adjusting roller two (8) are set inside the main frame (1); The main frame (1) has a guide groove (11) on its outer side, a round hole (12) on its outer side, a limiting groove (13) on the inner wall of the round hole (12), a shallow positioning hole (14) on its outer side, a deep positioning hole (15) on its outer side, and a sliding rod (16) slidably connected to the bottom end of the guide groove (11). Among them, the deep positioning holes (15) are set in two groups, the shallow positioning holes (14) are set in three groups, and the two ends of the first adjusting roller (7) and the second adjusting roller (8) are located inside the guide groove (11) and slide along the inside of the guide groove (11); The outer side of the adjusting roller (7) is slidably connected to the connecting rod (71), and the outer side of the connecting rod (71) is fixedly connected to the handle (72). The connecting rod 1 (71) is slidably connected to the inside of the positioning rod 1 (711), the positioning rod 1 (711) is sleeved with a spring 2 (712) on the outside, and the connecting rod 1 (71) is fixedly connected with a pin (713). One end of the second spring (712) is fixedly connected to the first positioning rod (711), and the other end is fixedly connected to the inner wall of the first connecting rod (71). The first positioning rod (711) is engaged with the shallow positioning hole (14). The outer side of the adjusting roller 2 (8) is fixedly connected to the connecting rod 2 (81), and the outer side of the connecting rod 2 (81) is fixedly connected to the handle 2 (82); The connecting rod 2 (81) is slidably connected to the positioning rod 2 (811), the positioning rod 2 (811) is sleeved with a spring 3 (812) on the outside, and the positioning rod 2 (811) is provided with a slot (813) inside; One end of the spring three (812) is fixedly connected to the positioning rod two (811), and the other end is fixedly connected to the inner wall of the connecting rod two (81). One side of the slot (813) is set as an inclined surface. The positioning rod two (811) is engaged with the deep positioning hole (15). The overall length of the positioning rod two (811) is greater than the overall length of the positioning rod one (711). The pin (713) cooperates with the slot (813) to adjust the position of the positioning rod two (811).

2. The textile yarn tension testing device according to claim 1, characterized in that: The top end of the slide rod (16) is fixedly connected to a support block (161), and the bottom end of the slide rod (16) is fixedly connected to a spring (162). The support block (161) slides inside the guide groove (11), and the other end of the spring (162) is fixedly connected to the inside of the main frame (1).

3. The textile yarn tension testing device according to claim 2, characterized in that: Bolts (21) are provided on the outside of the force gauge (2), and hooks (22) are provided at the bottom of the force gauge (2). The force gauge (2) is installed on the top of the main frame (1) by means of the bolts (21).

4. The textile yarn tension testing device according to claim 3, characterized in that: The output end of the motor (5) is fixedly connected to a rotating rod (51), and a disc (52) is fixedly connected to the outside of the rotating rod (51). A long rod (53) is fixedly connected to one end of the disc (52), and an annular groove (54) is provided on the outside of the rotating rod (51).

5. The textile yarn tension testing device according to claim 4, characterized in that: The winding reel (6) has a sliding cavity (61) at one end, and a movable rod (63) is rotatably connected to one end of the winding reel (6). A ball (62) is fixedly connected to the inner wall of the movable rod (62), and a limit strip (64) is fixedly connected to the outer side of the movable rod (63). The movable rod (63) is disposed inside the circular hole (12), the limiting strip (64) is located inside the limiting groove (13), the winding reel (6) is sleeved on the outside of the rotating rod (51), the long rod (53) is slidably connected inside the sliding cavity (61), and the sphere (62) is located inside the annular groove (54).

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