Cable intelligent tensioning device

Abstract

The application relates to the technical field of cable laying, and discloses a cable intelligent tensioning device, which is characterized in that an elongated top seat is sleeved on a supporting base, and fastening bolts are used to fasten the supporting base and the elongated top seat, so that the elongated top seat can be fixed at a required height; during the cable winding process, the cable is lifted by the elongated top seat, the suspended cable during the winding of the cable is subjected to a pulling force of the self gravity of the cable, the length of the suspended cable is adjusted by the height between the supporting base and the elongated top seat, the length change of the cable causes the change of the pulling force of the cable, the tensioning force of the cable is adjusted, and the effect of adjusting the tensioning force by the self gravity is achieved.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, and in particular to an intelligent cable tensioning device. Background Technology

[0002] The finished cables are usually wound on a spool for subsequent packaging and transportation. Due to uneven cable diameter, excessive cable elasticity, or unstable winding speed, the cables may become loose or tight during winding. If this is not addressed in time, the cables may not be able to be wound properly.

[0003] To address the aforementioned issues, existing technologies primarily rely on springs to press against the cable. When the cable tension changes, the spring's elasticity is used to adjust the tension. However, this method is overly dependent on the spring's elasticity. Under prolonged tension and strain, the spring's lifespan is shortened, and fatigue can alter its elastic coefficient, affecting tension control. Furthermore, when the pressing force needs to be changed, the spring must be replaced. Repeatedly replacing the spring adds unnecessary operations, resulting in low production efficiency in actual production. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention aims to provide an intelligent cable tensioning device that adjusts the tension force by the cable's own weight, thereby solving the problem of fatigue that easily occurs when adjusting the tension force with a spring.

[0005] Based on this, the present invention provides a smart cable tensioning device, comprising:

[0006] Support base;

[0007] An elongated top seat is fitted onto the outside of the support base and fixedly connected to the support base by fastening bolts, the fastening bolts being located on the side of the elongated top seat;

[0008] A spool frame is fixed to the top of one side of the extended top seat, and a power source is fixedly connected to the side of the spool frame;

[0009] A cable reel is placed on the reel frame and can rotate around its own axis under the drive of the power source; the cable reel is wound with a cable.

[0010] Tail wheel, the tail wheel is located on one side of the top end of the elongated top seat;

[0011] The first wheel is symmetrically arranged with the tail wheel, and the first wheel is located on the other side of the top of the extended top seat;

[0012] Guide wheels are fixed to the surface of the support base;

[0013] The cable passes through the guide wheel, the first wheel, and the tail wheel before being wound onto the spool. The cable length between the first wheel and the guide wheel is greater than the cable length between the tail wheel and the spool.

[0014] Some embodiments of this application include:

[0015] The top frame is fixedly connected to the top of the elongated top seat;

[0016] A connecting seat is movably installed on the top of the top frame. A front cantilever is fixedly connected to the side of the connecting seat. A front wheel is movably installed at the end of the front cantilever. A rear cantilever is fixedly installed on the other side of the connecting seat. A rear wheel is fixed at the end of the rear cantilever.

[0017] The head cantilever, the connecting seat, and the tail cantilever form a lever with the connecting seat as the fulcrum. A rope clamping wheel is fixedly installed on the surface of the top frame. The rope clamping wheel clamps the cable to pull the unwound cable and provide it with tension.

[0018] In some embodiments of this application, the length ratio of the tail cantilever to the head cantilever is 1:3 to 1:5.

[0019] In some embodiments of this application, there are two rope-clamping wheels, and the centers of the two rope-clamping wheels are on the same straight line as the center of the connecting seat.

[0020] In some embodiments of this application, the cable, after being reversed by the first pulley, is threaded between the two clamping pulleys and extends to the tail pulley.

[0021] In some embodiments of this application, a synchronous gear is fixedly installed at the end of the rope clamping wheel, the external teeth of the two synchronous gears mesh with each other, and a reset gear row is fixedly connected to the side of the connecting seat facing the head cantilever.

[0022] In some embodiments of this application, a detection gear is movably mounted on the inner side of the connecting seat, the detection gear meshes with the synchronous gear, a limiting post is provided in the middle of the connecting seat, and a bell head is fixedly connected to one end of the limiting post. When the detection gear rotates, its outer teeth touch and strike the bell head.

[0023] In some embodiments of this application, the first wheel is hinged to the end of the first cantilever via a reversing bracket, and a transmission rod is movably connected to the end of the reversing bracket. The limiting post is movably sleeved in the connecting seat, and the end of the limiting post is movably connected to the other end of the transmission rod.

[0024] In some embodiments of this application, a reversing wheel is provided on one side of the guide wheel, the cable is laid on the reversing wheel after passing through the first wheel, and the cable is passed between the two clamping wheels after being turned by the reversing wheel.

[0025] The intelligent cable tensioning device provided in this invention has the following advantages compared with the prior art:

[0026] This invention provides an intelligent cable tensioning device. An elongated top seat is fitted onto a support base, and fastening bolts are used to secure the support base and the elongated top seat, allowing the elongated top seat to be fixed at the required height. During the cable winding process, the cable is lifted by the elongated top seat, and the suspended cable exerts a tension force on the winding cable due to its own weight. The length of the suspended cable is adjusted by the height between the support base and the elongated top seat. The change in cable length causes a change in the cable tension, thus adjusting the cable tension and achieving the effect of adjusting the tension force by gravity. Attached Figure Description

[0027] Figure 1 This is an overall external perspective view of the first tensioning method of the intelligent cable tensioning device of this application;

[0028] Figure 2 This is an overall external perspective view of the second tensioning method of the intelligent cable tensioning device of this application;

[0029] Figure 3 This is a front sectional view of the second tensioning method of the intelligent cable tensioning device of this application;

[0030] Figure 4 for Figure 3 Detailed drawing at point A in the diagram;

[0031] Figure 5 for Figure 3 Detailed drawing at point B in the diagram;

[0032] Figure 6 This is a three-dimensional structural diagram of the cable clamping wheel of the intelligent cable tensioning device of this application.

[0033] In the diagram, 1. Support base; 2. Fastening bolt; 3. Extending top seat; 4. spool frame; 5. Power source; 6. spool; 7. Tail pulley; 8. First pulley; 9. Cable; 10. Guide wheel; 11. Rope clamping pulley; 12. Synchronizing gear; 13. Head cantilever; 14. Top frame; 15. Reset gear; 16. Connecting seat; 17. Tail cantilever; 18. Transmission rod; 19. Limiting post; 191. Bell head; 20. Detection gear; 21. Reversing bracket. Detailed Implementation

[0034] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0035] It should be understood that the terms "before," "after," etc., are used in this invention to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, "before" information can also be called "after" information, and "after" information can also be called "before" information, without departing from the scope of this invention.

[0036] Example 1

[0037] Please see Figure 1 The support base 1 serves as the foundation of the entire device, providing support for the installation of other components. The extension top 3 is sleeved on the support base 1. The extension top 3 can only reciprocate up and down on the support base 1. In order to limit the extension top 3 to the required height, a fastening bolt 2 is threaded on the side of the extension top 3. The end of the fastening bolt 2 passes through the extension top 3 and abuts against the side of the support base 1, thereby locking the extension top 3 on the support base 1. Of course, in actual applications, a hydraulic push rod can also be used to realize the lifting and locking of the extension top 3, thereby making it easier to adjust the position of the extension top 3 visually.

[0038] Furthermore, the spool frame 4 is fixed to the top of one side of the extended top seat 3, and the spool frame 4 is equipped with a power source 5 and a winding drum 6. The power source 5 is a driving component such as a motor. In this application, the power source 5 drives the winding drum 6 on the spool frame 4 to rotate around its own axis, so that the cable 9 can be wound around the winding drum 6. Of course, in order to achieve rapid winding of the cable 9, a rope arrangement mechanism can also be provided above the winding drum 6 in this application, which will not be described in detail here.

[0039] Furthermore, a tail wheel 7 is fixed to one side of the surface of the elongated top seat 3, and the tail wheel 7 is located above the winding drum 6. A first wheel 8, symmetrical to the tail wheel 7, is fixed to the other side of the surface of the elongated top seat 3. A guide wheel 10 is fixedly connected to the surface of the support base 1, such as... Figure 1 As shown, after passing through the guide wheel 10, the first wheel 8 and the tail wheel 7, the cable 9 is wound onto the winding drum 6. The winding drum 6 can rotate around its own axis under the drive of the power source 5 to realize the winding and unwinding of the cable 9.

[0040] Based on the above structure, during use, the elongated top seat 3 is fixed at the required height using the fastening bolts 2. Figure 1It can be seen that the length of the cable 9 between the first wheel 8 and the guide wheel 10 is much greater than the length of the cable 9 between the tail wheel 7 and the reel 6. The cable 9 between the first wheel 8 and the guide wheel 10 will be forced to pull down due to its own weight. As the height of the extension top seat 3 increases, the distance between the guide wheel 10 and the first wheel 8 increases, and the suspended length of the cable 9 will also increase. Therefore, by using the up and down movement of the extension top seat 3, the suspended weight of the cable 9 can be adjusted.

[0041] Since there is only one cable 9, when the cable 9 between the first wheel 8 and the guide wheel 10 is pulled down by gravity, the tension will also be applied to the cable 9 between the tail wheel 7 and the winding drum 6. That is, the gravity of the suspended cable 9 provides tension to the cable 9 to be wound. Since this tension relies on the weight of the cable 9 itself, there is no problem of elastic fatigue as mentioned in the background art. On the other hand, the tension of the cable 9 can be adjusted by freely raising the extension top seat 3, making it easier to adjust the tension.

[0042] Example 2

[0043] This is a further improvement on Embodiment 1. While Embodiment 1 utilizes the suspended weight of cable 9 to adjust tension, providing sufficient weight when cable 9 is thick, its drawback is that when cable 9 is insufficiently heavy, the height of the extension top 3 needs to be continuously increased. Since the extension top 3 has a limited range of motion on the support base 1, insufficiently heavy cable 9 cannot be accommodated as described above. Embodiment 2 addresses this problem; please refer to [link to related documentation]. Figure 2 A top frame 14 is fixedly connected to the top of the elongated top seat 3. The surface shape of the top frame 14 is an isosceles triangle. A connecting seat 16 is movably installed on the top of the top frame 14, in conjunction with... Figures 3-5 It can be seen that the front cantilever 13 is fixedly connected to the side of the connecting seat 16, and the front wheel 8 is movably mounted on the end of the front cantilever 13. A rear cantilever 17 is fixedly mounted on the other side of the connecting seat 16, and the rear wheel 7 is fixed to the end of the rear cantilever 17. The length of the front cantilever 13 is 3-5 times the length of the rear cantilever 17, that is, the ratio between the length of the rear cantilever 17 and the length of the front cantilever 13 is between 1:3 and 1:5. Figure 3 It is clear that the head cantilever 13, the connecting seat 16, and the tail cantilever 17 form a lever with the connecting seat 16 as the fulcrum.

[0044] A rope-clamping pulley 11 is fixedly mounted on the surface of the top frame 14, located below the connecting seat 16, from... Figure 4 As can be seen, there are two rope-clamping wheels 11, which clamp the cable 9. Figure 4The thick black line shown in the middle cable 9 is the path, not the actual diameter of the cable 9. Furthermore, the center points of the two rope clamping wheels 11 and the center point of the connecting seat 16 are on the same vertical line.

[0045] from Figure 2 It can be seen that the winding method of cable 9 is as follows: cable 9 first passes around guide wheel 10, then changes direction after passing first wheel 8, and then cable 9 is fed between clamping wheels 11. Finally, cable 9 changes direction after passing tail wheel 7 and is wound onto reel 6. Figure 3 As can be seen, the weight of the cable 9 between the clamping wheel 11, the first wheel 8, and the guide wheel 10 acts on the first wheel 8, while the weight of the cable 9 between the clamping wheel 11, the tail wheel 7, and the reel 6 acts on the tail wheel 7. In summary, the first cantilever 13, the connecting seat 16, and the tail cantilever 17 form a lever. Thus, when a lighter weight is applied to the first wheel 8, the lever can create a greater upward resistance on the tail wheel 7, thereby adjusting the tension of the cable 9 through the tail wheel 7.

[0046] When in use, by placing the cable 9 as described above, when the force of the winding drum 6 to wind the cable 9 increases instantaneously, it will force the cable 9 to increase the tension on the tail pulley 7. The tail pulley 7 will deflect downward with the connecting seat 16 as the axis, thereby avoiding the phenomenon of the cable 9 being wound too tightly and causing damage.

[0047] When the winding force of the spool 6 decreases instantaneously, the gravity at the first pulley 8 causes the connecting seat 16 to deflect counterclockwise, with the direction referenced. Figure 4 The tail pulley 7 moves upward, thereby maintaining the tension of the cable 9 between the tail pulley 7 and the reel 6 within the set range. It can be seen in summary that the lever formed between the head cantilever 13, the connecting seat 16 and the tail cantilever 17 enables the tail pulley 7 to always adjust the required tension of the cable 9.

[0048] This second embodiment not only utilizes the weight of the cable 9 itself to adjust the tension, but also uses the lever principle to increase the force. This ensures that when the weight of the cable 9 is insufficient, the force applied to the cable 9 can be increased through the lever, thus solving the problem that the elongation top seat 3 cannot be raised excessively to compensate for insufficient tension.

[0049] Example 3

[0050] Further improvements are made to Embodiment 2. Although Embodiment 2 can change the tension of cable 9 through a lever, ... Figure 3It is also evident that the balance maintained between the head cantilever 13, the connecting seat 16, and the tail cantilever 17 depends on the feed speed of the reel 6. The cable 9 is pulled downwards by the winding of the reel 6 around the cable 9. In practical applications, it is known that the winding of the reel 6 is not a single layer. When multiple layers are stacked, the constant rotation of the power source 5 will cause the winding speed of the reel 6 to change. This results in the head cantilever 13, the connecting seat 16, and the tail cantilever 17 needing to maintain balance at different speeds. Obviously, this is not easy to control in practical applications.

[0051] In order to avoid this phenomenon, this third embodiment combines... Figure 4 and Figure 6 As can be seen, a synchronous gear 12 is fixedly installed at the end of the rope clamping wheel 11. The two synchronous gears 12 mesh with each other to ensure that the two synchronous gears 12 can rotate synchronously. Since the two rope clamping wheels 11 rotate synchronously through the synchronous gears 12, the distance between the two rope clamping wheels 11 is relatively fixed. In actual application, in order to ensure the clamping of the cable 9, a rubber sleeve can be fitted on the outside of the rope clamping wheel 11 to reduce the gap between the two rope clamping wheels 11 and thus achieve a stable clamping of the cable 9.

[0052] Combination Figure 2 , Figure 3 and Figure 4 It can be seen that a reset gear 15 is fixedly connected to the outer side of the connecting seat 16, located on one side of the head cantilever 13. When the head cantilever 13 and the tail cantilever 17 are relatively horizontal, the reset gear 15 is located above the synchronous gear 12. When the reset gear 15 abuts against the synchronous gear 12, it can complete the synchronous rotation between the connecting seat 16 and the two synchronous gears 12. In use, the height of the extension top seat 3 is adjusted to adjust the force applied to the first wheel 8, and finally the tension of the tail wheel 7 on the cable 9 is adjusted.

[0053] When the cable reel 6 is normally winding the cable 9, combined with Figure 4As can be seen, the cable 9 pulled to the right causes the synchronous gear 12 above the cable 9 to rotate counterclockwise. The gravity at the end of the first wheel 8 will press the connecting seat 16 to deflect counterclockwise until the reset gear 15 touches the synchronous gear 12. At this time, the first cantilever 13 and the tail cantilever 17 are relatively horizontal. Because the reset gear 15 hits the synchronous gear 12, it restricts the rotation of the clamping wheel 11 and causes the synchronous gear 12 above the cable 9 to rotate clockwise. This causes the cable 9 clamped between the clamping wheels 11 to tend to move to the left. As the winding drum 6 winds up, the winding drum 6 applies a pulling force to the cable 9 to be wound up. When the pulling force on the cable 9 increases, it is blocked by the reset gear 15, causing the clamping wheel 11 to deflect counterclockwise. The movement of cable 9 is restricted, causing the tension between the reel 6 and the tail pulley 7 to act on the tail pulley 7, resulting in a downward pulling tendency. Once the tension of cable 9 reaches the adjustment level of the tail pulley 7, it will deflect downwards. After the tail cantilever 17 deflects downwards, the connecting seat 16 deflects clockwise, the reset gear 15 disengages from the synchronous gear 12, and the synchronous gear 12 is released from its restriction. Cable 9 is then fed through the clamping pulley 11. Subsequently, when the first pulley 8 again tends to deflect downwards, since the tension of cable 9 is within the required range, the rightmost reset gear 15 and the synchronous gear 12 are in a relatively sliding contact state, thus maintaining the balance between the first pulley 8 and the tail pulley 7. In this method, regardless of the winding speed of the reel 6, the operation must be carried out in the above manner to reduce the impact of the rotation speed of the reel 6 on the balance between the tail pulley 7 and the first pulley 8.

[0054] If the spool 6 is wound too tightly at any moment, the situation described in Example 2 will occur.

[0055] When the spool 6 is wound too loosely at any moment, the head cantilever 13 will deflect downward from its relatively horizontal position. (Refer to...) Figure 4 It can be seen that the downward-deflecting head cantilever 13 can deflect the tail cantilever 17 upward through the connecting seat 16, thereby increasing the tension of the cable 9; on the other hand, the counterclockwise deflecting reset gear 15 will cause the synchronous gear 12 above the cable 9 to have a clockwise deflection tendency, and the two rope clamping wheels 11 will rotate relative to each other, causing the cable 9 to have a tendency to pull to the left. When the cable 9 is loose, on the one hand, the lifting of the tail wheel 7 will tighten the cable 9, and on the other hand, the overly loose cable 9 will be stretched to the left, so that the cable 9 can be tightened quickly again; finally, after the cable 9 is tightened again by the winding drum 6, the operation is carried out again according to the above situation.

[0056] Example 4

[0057] As a supplement to Embodiment 3, it can be seen from Embodiment 3 that although the above structure can perform a forced adjustment when the cable 9 is momentarily too loose, when it is momentarily too tight, it can only be adjusted by deflecting the tail pulley 7 downwards. However, due to the limited deflection angle of the tail pulley 7, when the winding of the reel 6 is continuously abnormally tight, the tail pulley 7 cannot continuously deflect for adjustment. In this case, external personnel need to be aware of the potential problem. To promptly alert personnel when the winding of the reel 6 is abnormally tight, please refer to... Figure 3 and Figure 4 In this embodiment, a detection gear 20 located below the tail cantilever 17 is movably installed on the inner side of the connecting seat 16. The detection gear 20 can mesh with the synchronous gear 12. A limiting post 19 is provided in the middle of the connecting seat 16, and a bell head 191 is fixedly connected to one end of the limiting post 19. The bell head 191 is located on one side of the detection gear 20. When the detection gear 20 rotates, the small teeth of the detection gear 20 will strike the bell head 191, thereby making the bell head 191 make a sound to alert external personnel.

[0058] like Figure 3 and Figure 4 As shown, when the cable reel 6 is wound abnormally tight, the tail pulley 7 will deflect downwards, causing the cable 9 path between the clamping pulley 11, the tail pulley 7, and the cable reel 6 to gradually straighten from an inverted V-shape. Once the cable 9 between the clamping pulley 11 and the cable reel 6 is relatively straight, it can no longer apply downward pressure to the tail pulley 7. This is the limit of the tail pulley 7's deflection, indicating that the cable reel 6 may be winding abnormally tight. Subsequently, the detection gear 20 will mesh with the synchronization gear 12. Since the cable 9 is pulled to the right at this time, the synchronization gear 12 above the cable 9 rotates counterclockwise, and the detection gear 20 rotates clockwise. The rotating detection gear 20 will continuously strike the bell head 191 to emit a continuous sound to warn external personnel that the cable reel 6 is winding too tightly.

[0059] Example 5

[0060] This embodiment further improves upon embodiment four. When the reel 6 is almost finished winding the cable 9, the cable 9 will first disengage from the guide wheel 10. The weight of the cable 9 at the first wheel 8 is relatively reduced, and the tail wheel 7 can no longer provide the required tension. To prevent the cable 9 from becoming excessively loose, such as Figures 3 to 5 As shown, the first wheel 8 is hinged to the end of the head cantilever 13 via a reversing bracket 21. The end of the reversing bracket 21 is connected to a transmission rod 18 via a ball. The ball is located above the hinge point between the reversing bracket 21 and the head cantilever 13. Figure 4It can be seen that the cross-sectional shape of the limiting column 19 is T-shaped. The limiting column 19 is movably sleeved in the connecting seat 16. The end of the limiting column 19 is connected to the other end of the transmission tie rod 18 through a ball. In this way, the reversing tie rod 21 can be deflected left and right during the left and right movement of the limiting column 19.

[0061] During the winding process of the cable reel 6, if the cable reel 6 becomes abnormally tight, the detection gear 20 will strike the bell head 191 to produce a sound. At the same time, during the clockwise deflection of the connecting seat 16, since the first wheel 8 is still affected by the gravity of the cable 9, the reversing pull bracket 21 pulls the transmission rod 18 to the left, so that the limiting post 19 will never move in the direction of the detection gear 20, ensuring that the bell head 191 can continuously produce a sound when the cable reel 6 is abnormally tight during winding.

[0062] After cable 9 is delivered, it first disengages from guide wheel 10, reducing the weight exerted by guide wheel 10 on first wheel 8. When the downward deflection force exerted by tail wheel 7 is greater than the downward deflection force of first wheel 8, connecting seat 16 deflects clockwise. Due to the reduced downward pressure exerted by first wheel 8, limiting post 19 is tilted downwards, pulling transmission rod 18 downwards until bell head 191 jams detection gear 20, preventing it from rotating. Simultaneously, the continuous winding of cable 9 causes clamping wheel 11 to rotate continuously. When the rotating clamping wheel 11 encounters the locked detection gear 20, it further causes connecting seat 16 to rotate until detection gear 20 passes over clamping wheel 11. At the same time, the first cantilever 13 also passes over the center of the connecting seat 16 and is located above and to the right of the center of the connecting seat 16; then, under the gravity of the first cantilever 13, the connecting seat 16 will rotate clockwise again until the tail cantilever 17 is attached to the synchronous gear 12. As it presses tightly against the synchronous gear 12, the movement resistance of the synchronous gear 12 increases, which in turn increases the rotational resistance of the rope clamping wheel 11. As a result, the cable 9 still needs a certain tension after it passes through the two rope clamping wheels 11, and this tension is controlled by the friction between the synchronous gear 12 and the tail cantilever 17.

[0063] The first cantilever 13 follows the connecting seat 16 and rotates clockwise. As the first cantilever 13 passes the connecting seat 16, in order to ensure that the tail cantilever 17 does not cause obstruction, the tail cantilever 17 is positioned above the first cantilever 13. This ensures that the tail cantilever 17 will only contact the synchronous gear 12 after the first cantilever 13 has rotated to the right side of the center of the connecting seat 16. In this way, the weight of the first cantilever 13 can make the tail cantilever 17 press against the synchronous gear 12, thereby applying resistance to the movement of the synchronous gear 12.

[0064] As a supplement and improvement to Example 5, please refer to Figure 3In this embodiment, the cable 9 can also be laid out along the dotted line. Only a reversing wheel needs to be set on one side of the guide wheel 10 so that the cable 9 passes through the guide wheel 10, then through the first wheel 8, the reversing wheel, the rope clamping wheel 11, and the tail wheel 7, and finally winds onto the winding drum 6. This ensures that the cable 9 is still subject to the gravity of the cable 9 between the first wheel 8 and the reversing wheel after it leaves the guide wheel 10, thereby forcing the cable 9 to quickly detach from the first wheel 8. At this time, a gravity difference is generated between the tail wheel 7 and the first wheel 8, which more quickly achieves the content described in embodiment five.

[0065] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A cable intelligent tensioning device, characterized in that, include: Support base (1); An elongated top seat (3) is fitted onto the outside of the support base (1) and fixedly connected to the support base (1) by a fastening bolt (2), wherein the fastening bolt (2) is located on the side of the elongated top seat (3); A spool frame (4) is fixed to the top of one side of the extended top seat (3), and a power source (5) is fixedly connected to the side of the spool frame (4). A spool (6) is placed on the spool frame (4) and can rotate around its own axis under the drive of the power source (5). A cable (9) is wound on the spool (6). Tail wheel (7), the tail wheel (7) is located on one side of the top of the elongated top seat (3); The first wheel (8) is symmetrically arranged with the tail wheel (7), and the first wheel (8) is located on the other side of the top of the elongated top seat (3); Guide wheel (10) is fixed to the surface of the support base (1); The top frame (14) is fixedly connected to the top of the elongated top seat (3); A connecting seat (16) is movably installed on the top of the top frame (14). A front cantilever (13) is fixedly connected to the side of the connecting seat (16). A front wheel (8) is movably installed at the end of the front cantilever (13). A tail cantilever (17) is fixedly installed on the other side of the connecting seat (16). A tail wheel (7) is fixed at the end of the tail cantilever (17). The cable (9) passes through the guide wheel (10), the first wheel (8), and the tail wheel (7) and then winds onto the spool (6). The length of the cable (9) between the first wheel (8) and the guide wheel (10) is greater than the length of the cable (9) between the tail wheel (7) and the spool (6) to provide tension to the unwound cable (9). The head cantilever (13), the connecting seat (16) and the tail cantilever (17) form a lever with the connecting seat (16) as the fulcrum. A rope clamping wheel (11) is fixedly installed on the surface of the top frame (14), and the rope clamping wheel (11) clamps the cable (9). The end of the rope clamping wheel (11) is fixedly installed with a synchronous gear (12), and the external teeth of the two synchronous gears (12) mesh with each other. The connecting seat (16) is fixedly connected with a reset gear row (15) on the side facing the head cantilever (13).

2. The intelligent cable tensioning device according to claim 1, characterized in that, The length ratio of the tail cantilever (17) to the head cantilever (13) is 1:3 to 1:

5.

3. The cable intelligent tensioning device of claim 1, wherein, There are two rope clamping wheels (11), and the centers of the two rope clamping wheels (11) are on the same straight line as the center of the connecting seat (16).

4. The cable intelligent tensioning device of claim 3, wherein, After the cable (9) is reversed by the first pulley (8), it is threaded between the two rope clamping pulleys (11) and extends to the tail pulley (7).

5. The cable intelligent tensioning device of claim 1, wherein, A detection gear (20) is movably installed on the inner side of the connecting seat (16). The detection gear (20) meshes with the synchronous gear (12). A limiting post (19) is provided in the middle of the connecting seat (16). A bell head (191) is fixedly connected to one end of the limiting post (19). When the detection gear (20) rotates, its outer teeth touch and strike the bell head (191).

6. The cable intelligent tensioning device of claim 5, wherein, The first wheel (8) is hinged to the end of the first cantilever (13) via a reversing bracket (21), and the end of the reversing bracket (21) is movably connected to a transmission rod (18). The limiting post (19) is movably sleeved in the connecting seat (16), and the end of the limiting post (19) is movably connected to the other end of the transmission rod (18).

7. The cable intelligent tensioning device of claim 6, wherein, A reversing wheel is provided on one side of the guide wheel (10). The cable (9) is laid on the reversing wheel after passing through the first wheel (8). After the cable (9) is turned by the reversing wheel, it is passed between the two clamping wheels (11).

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