Locking piece of cable

Abstract

The utility model provides a cable locking piece which comprises an installation part used for installing the locking piece and a restraining part used for clamping a spiral cable, and the restraining part is provided with a limiting part used for clamping a linear section of the spiral cable. The restraining part is further provided with a wire clamping window used for clamping an end ring of the spiral cable and a wire clamping groove used for clamping the upward extending part of the end ring, and the wire clamping groove and the limiting part are located on the two sides of the wire clamping window respectively. Wherein the limiting part plays a main role in locking, and after the locking piece is mounted on the mounting part, the limiting part can lock the linear section of the spiral cable so as to keep the spiral cable still; the wire clamping window and the wire clamping groove play a role in auxiliary locking, an end ring of the spiral cable and the upper portion of the end ring can be further clamped, the contact between the restraining part and the spiral cable is increased, the part, acting on the spiral cable, of the restraining part is more, on one hand, the straight line section of the spiral cable is prevented from loosening, and the service life of the spiral cable is prolonged. And on the other hand, aging of the spiral cable due to concentrated stress can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a locking piece for a cable. Background Art

[0002] In order to adapt to the development of science and technology and the needs of humanized design concepts, electrical appliances have become an indispensable part of people's work, life and even entertainment. As more and more electrical appliances are used, more and more wires are used. If the cables are not properly managed, they will not only look messy, but also affect the use of electrical equipment, and may even cause safety hazards, burn the lines and cause fires.

[0003] Lift tables are very common in daily life. With the upgrading of technology and the enhancement of humanized design awareness, some existing lift tables not only have the function of electrically adjusting the height of the tabletop, but also can be equipped with sockets on the table columns to facilitate users to use some electrical equipment. However, exposing the cables directly to the outside of the table body not only makes it messy and difficult to organize, causing inconvenience in electricity use, but also the exposed wires are easily damaged, affecting the service life of the cables and even causing safety hazards. Therefore, placing the cables inside the table body has become a hot spot in the current structural design of lift tables.

[0004] When the cable is set inside the table column, a spiral cable is generally selected to achieve synchronous extension and retraction of the cable and the table column when the cable is raised or lowered. The spiral cable is spiral-shaped as a whole, with two straight segments at its two ends. The cable will extend out of the openings of the straight segments for electrical connection. When using the spiral cable, the two ends of the spiral cable need to be locked, so a suitable locking device is required.

[0005] The existing locking parts are generally divided into two parts, which are used in combination to facilitate installation with the spiral cable. One of the parts is used to be fixedly connected to an external part, such as a screw housing, and the other part is mainly used to allow the spiral cable to be wound around it through a multi-layer spiral limiting structure. Both parts are provided with semicircular limiting protrusions, and the spiral cable is correspondingly provided with limiting grooves. The two parts are locked with screws to form a locking part, and the limiting protrusion enters the limiting groove to lock the spiral cable. The spiral limiting mechanism plays a further anti-slip effect, but the spiral limiting mechanism is not easy to form and the mold opening cost is high. The locking part is divided into two parts, which will also increase the cost, make the assembly more cumbersome, and reduce the production efficiency. Summary of the invention

[0006] In order to solve the above-mentioned technical problems, the utility model provides a locking piece for a cable, comprising an installation part for installing the locking piece and a restraining part for clamping a spiral cable, the restraining part is provided with a limiting part for clamping a straight section of the spiral cable, the restraining part is also provided with a wire clamping window for clamping an end ring of the spiral cable and a wire clamping groove for clamping an upwardly extending portion of the end ring, the wire clamping groove and the limiting part are respectively located on both sides of the wire clamping window; wherein the limiting part plays a main role in locking, after the locking piece is installed on the installation part, the limiting part will lock the straight section of the spiral cable to keep it still; and the wire clamping window and the wire clamping groove play a role of auxiliary locking, which can further clamp the end ring of the spiral cable and the portion above it, so that the contact between the restraining part and the spiral cable is increased, and the portion of the restraining part acting on the spiral cable is larger, which can prevent the straight section of the spiral cable from loosening on the one hand, and prevent the spiral cable from aging due to concentrated force on the other hand.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A cable locking piece comprises an installation part and a restraining part, wherein the installation part is configured for installing and fixing the locking piece, and the restraining part is provided with a limiting part, and the limiting part is configured for clamping a straight section of a spiral cable; the restraining part is also provided with a wire clamping window and a wire clamping groove, and the wire clamping groove and the limiting part are respectively located on both sides of the wire clamping window, and the wire clamping window is configured for clamping an end ring of the spiral cable, and the wire clamping groove is configured for clamping an upwardly extending portion of the end ring of the spiral cable.

[0009] In the present solution, only a single locking piece is required to lock the end of the spiral cable, which has lower cost and easier assembly. The limiting part plays a major role in locking. After the locking piece is installed on the mounting part, the limiting part will lock the straight section of the spiral cable to keep it stationary. The wire clamping window and the wire clamping groove play an auxiliary locking role, which can further clamp the end ring of the spiral cable and the upper part thereof, thereby increasing the contact between the constraint part and the spiral cable, and the constraint part acts on a larger part of the spiral cable, which can prevent the straight section of the spiral cable from loosening on the one hand, and prevent the spiral cable from aging due to concentrated force on the other hand. The wire clamping window and the wire clamping groove are used instead of the spiral limiting structure to achieve the same effect while facilitating mold opening and saving costs.

[0010] Preferably, the constraint portion is semi-enclosed, the limiting portion is a C-shaped boss, and the center angle of the limiting portion is greater than 180°. The center angle of the limiting portion is greater than 180° to achieve the effect of the straight section of the spiral cable being inserted into the mounting portion, and increasing the contact range can also enhance the locking effect and prevent disengagement.

[0011] Preferably, the restraining portion is elastic, so that the restraining portion can be opened to facilitate inserting the straight section of the spiral cable.

[0012] Preferably, the wire clamping window passes through the constraint portion in the horizontal direction, the wire clamping groove is recessed in the horizontal direction, and the opening of the wire clamping groove faces the mounting portion. When the spiral cable is naturally drooping, its end ring is roughly horizontal, and the horizontal wire clamping window can be used to accommodate and clamp the end ring. The portion of the spiral cable extending upward from the end ring will be clamped into the horizontal wire clamping groove to further lock and prevent the spiral cable from falling off.

[0013] Preferably, the outline of the wire clamping slot is an arc shape, and the center angle of the wire clamping slot is greater than 180°. The center angle of the wire clamping slot is also greater than 180°, so as to achieve the effect of preventing the spiral cable from falling out after being clamped into the wire clamping slot.

[0014] Preferably, the wire clamping window is trumpet-shaped, and the size of the wire clamping window gradually decreases from the end away from the mounting portion to the end close to the mounting portion. The shrinking trend of the wire clamping window can achieve the effect of preventing the end ring of the spiral cable from falling off after being clamped into the wire clamping window.

[0015] Preferably, the side wall of the cable clamping window is curved in an S shape. The curve of the side wall of the cable clamping window can further enhance the anti-drop effect of the spiral cable end ring after being clamped.

[0016] Preferably, the mounting portion includes two symmetrically arranged locking plates, which are vertically arranged at two ends of the constraint portion. The two locking plates can embrace two end surfaces of the actuator and are connected by screws.

[0017] As a preferred embodiment, the mounting portion and the restraining portion are integrally formed, which makes the structure simpler, the manufacturing more convenient, and the production cost lower.

[0018] Preferably, the restraining portion above the wire clamping window forms a pressing plate, and the wire clamping slot is provided on the pressing plate. The pressing plate can restrict the end ring of the spiral cable to the wire clamping window to prevent it from being disengaged.

[0019] The design starting point, concept and beneficial effects of the utility model using the above technical solution are:

[0020] In the present solution, only a single locking piece is required to lock the end of the spiral cable, which has lower cost and easier assembly. The limiting part plays a major role in locking. After the locking piece is installed on the mounting part, the limiting part will lock the straight section of the spiral cable to keep it stationary. The wire clamping window and the wire clamping groove play an auxiliary locking role, which can further clamp the end ring of the spiral cable and the upper part thereof, thereby increasing the contact between the constraint part and the spiral cable, and the constraint part acts on a larger part of the spiral cable, which can prevent the straight section of the spiral cable from loosening on the one hand, and prevent the spiral cable from aging due to concentrated force on the other hand. The wire clamping window and the wire clamping groove are used instead of the spiral limiting structure to achieve the same effect while facilitating mold opening and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional structure of the lifting column in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the lifting column in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the spring cable and the actuator inside the telescopic sleeve in the embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the guide rod and the enclosure member inside the telescopic sleeve in the embodiment of the utility model;

[0025] Figure 5 The three-dimensional structure of the spring cable in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0026] Figure 6 The three-dimensional structure of the spring cable in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure inside the motor box in the embodiment of the utility model;

[0028] Figure 8 It is a three-dimensional structural schematic diagram of the electrical components in the embodiment of the utility model;

[0029] Fig. 9 This is a three-dimensional structural diagram of the external interface and the protection switch inside the electrical component in the embodiment of the utility model;

[0030] Fig.10 This is a three-dimensional structural diagram of the internal connection port and the splitter of the junction box in the embodiment of the utility model;

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the limiting plate in the embodiment of the utility model;

[0032] Fig.12 This is a schematic diagram of a three-dimensional structure in which a locking member is installed on a push rod housing in an embodiment of the utility model;

[0033] Fig.13 It is a three-dimensional structural schematic diagram of the locking member in the embodiment of the utility model;

[0034] Fig.14 A length comparison diagram of a spring cable and a guide rod in an embodiment of the present utility model;

[0035] Fig.15It is a three-dimensional structural schematic diagram of the enclosure member in the embodiment of the utility model;

[0036] Fig.16 The three-dimensional structure of the spiral cable arranged in the locking member in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0037] Fig.17 The three-dimensional structure of the spiral cable arranged in the locking member in the embodiment of the utility model is shown in FIG. Figure 2 .

[0038] The figures are marked as follows: telescopic sleeve 1; actuator 2; spiral cable 3; first straight segment 31; second straight segment 32; guide rod 4; cable 5; motor box 6; motor 7; electrical component 8; housing 81; protection switch 82; external interface 83; button 84; connection port 9; junction box 10; splitter 11; limit plate 12; opening 13; first limit groove 14; limit seat 15; second limit groove 16; limit boss 17; limit portion 18; locking member 19; mounting portion 191; constraint portion 192; wire clamping window 20; wire clamping groove 21; enclosure 23; baffle 24; clamping member 25; connecting hole 26; end ring 27; pressure plate 28. Implementation

[0039] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0041] In the description of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0042] The specific implementation of the utility model is as follows:

[0043] like Figure 1-4As shown, the utility model provides a cable locking member, and the locking member 19 is applied to a lifting column. Specifically, the lifting column includes a telescopic sleeve 1, an actuator 2, a spiral cable 3 and a guide rod 4. The actuator 2 is vertically arranged in the telescopic sleeve 1, and the actuator 2 is configured to drive the telescopic sleeve 1 to telescope; the guide rod 4 is vertically arranged in the telescopic sleeve 1, and the guide rod 4 is located beside the actuator 2; the spiral cable 3 is vertically arranged in the telescopic sleeve 1 and is partially sleeved or wound on the guide rod 4, and at least one cable 5 is provided in the spiral cable 3, and the cable 5 extends from both ends of the spiral cable 3 and is configured to be used for electrical connection of the lifting column; the spiral cable 3 and the guide rod 4 are configured so that when the telescopic sleeve 1 is extended, the spiral cable 3 is extended by the guide rod 4, and when the telescopic sleeve 1 is shortened, the spiral cable 3 is shortened by the guide rod 4.

[0044] A spiral cable 3 is provided on the outside of the cable 5, which protects the cable 5 to prevent the surface of the cable 5 from aging and direct damage due to lifting and lowering movements. At the same time, when there are multiple cables 5, the spiral cable 3 integrates the multiple cables 5 so that the multiple cables 5 will not be scattered in a disorderly manner in the column; therefore, it not only protects but also has the function of cable management, making the wiring of the entire table more concise.

[0045] In terms of noise, when the spiral cable 3 is arranged alone in the telescopic sleeve 1, the spiral cable 3 will shake due to its rapid shortening, so the spiral cable 3 will hit the telescopic sleeve 1 and generate noise; when a pipe is arranged outside the spiral cable 3, the pipe will also be hit. The spiral cable 3 in this solution is sleeved or wrapped around the guide rod 4, which can avoid the possibility of knocking with the external pipe. At the same time, the guide rod 4 can prevent or reduce the shaking of the spiral cable 3 when it is extended and retracted, and will not knock on the telescopic sleeve 1. It is a more reasonable structure.

[0046] The advantage of using the guide rod 4 is that it saves material and the friction surface between the guide rod 4 and the spiral cable 3 is smaller.

[0047] The difference between the spiral cable 3 being sleeved on the guide rod 4 and the spiral cable 3 being wound on the guide rod 4 is whether there is a gap between the spiral cable 3 and the guide rod 4. If there is a gap between the spiral cable 3 and the guide rod 4, it is sleeved; when the spiral cable 3 is sleeved on the guide rod 4, it is difficult to avoid slight shaking of the spiral cable 3, and when the spiral cable 3 is wound on the guide rod 4, the spiral cable 3 will be subjected to additional pressure from the guide rod 4 when it is stretched; while the spiral cable 3 is stretched, its inner diameter will also become smaller, and the spiral cable 3 will be wound on the guide rod 4, and will be wound tighter and tighter when stretched. Although the spiral cable 3 is elastic and will not cause a constraint that cannot move, the pressure and friction generated between the guide rod 4 and the spiral cable 3 will increase, which will affect the smoothness of the movement of the lifting column and the service life of the spiral cable 3. In this embodiment, there is a gap between the spiral cable 3 and the guide rod 4, and the spiral cable 3 is sleeved on the guide rod 4.

[0048] like Figure 5 , 6 As shown, the spiral cable 3 is an elastic spiral cable. When the telescopic sleeve 1 is extended, the spiral cable 3 is stretched and expanded. When the telescopic sleeve 1 is shortened, the spiral cable 3 is retracted and restored to its original shape. When the elastic spiral cable is extended or retracted, not only the length but also the diameter of the elastic spiral cable will change. The diameter will become smaller when extended and larger when shortened. By cooperating with the guide rod 4, the extension and retraction of the elastic spiral cable will be more stable.

[0049] Specifically, if Figure 1 , 7-9, the lifting column also includes a motor box 6, which is arranged at the upper end of the telescopic sleeve 1, and a motor 7 is arranged in the motor box 6. The actuator 2 includes a screw and a push rod shell. The push rod shell is provided with a nut connected to the screw thread. The screw and the upper end of the telescopic sleeve 1 move synchronously. The push rod shell is fixedly connected to the lower end of the telescopic sleeve 1. The upper end of the screw is exposed from the push rod shell and is transmission-connected with the motor 7. The motor 7 is configured to drive the screw to rotate and make the actuator 2 telescopic. An electrical component 8 is arranged below the actuator 2. The electrical component 8 includes a shell 81. A protective switch 82 and an external interface 83 electrically connected to the spiral cable 3 are arranged in the shell 81. The lower end of the push rod shell is in contact with the electrical component 8, and the telescopic sleeve 1, the electrical component 8 and the actuator 2 are connected by screws. The external interface 83 protrudes downward from the shell 81, and the spiral cable 3 is connected to the external interface 83 inside the shell 81. And the external interface 83 is exposed downward from the lower end surface of the telescopic sleeve 1; when the external interface 83 is a power interface, the external interface 83 is electrically connected to the external power supply of the lifting table; when the external interface 83 is a signal line interface, the external interface 83 is electrically connected to the signal line such as the external network cable of the lifting table; there is not only one external interface 83, so it can have both a power interface and a signal line interface; this means that the cable 5 in the spiral cable 3 can be a power line, or a signal line such as a network cable, or both can coexist; the external interface 83 is arranged on the lower end surface of the telescopic sleeve 1. Since the lower end of the telescopic sleeve 1 will be connected to the table leg of the lifting table, the external interface 83 is a hidden external interface 83, which cannot be seen by the user, making the whole table more beautiful; compared with the external interface 83 being located on the side of the telescopic sleeve 1, when it is located on the lower end surface of the telescopic sleeve 1, it is prevented from being kicked open accidentally.

[0050] Correspondingly, such as Figure 1 , 2 As shown in Figures 1 and 10, the lifting column also has a connection port 9 for electrically connecting the spiral cable 3 to the inside of the lifting table. Specifically, a junction box 10 is provided below the motor box 6. The spiral cable 3 has a first straight section 31 at the upper end. The first straight section 31 faces the junction box 10, and the cable 5 enters the junction box 10. The junction box 10 gathers the cables 5 to prevent the cables 5 from appearing on the surface of the lifting column, which is neat and safe. The connection port 9 is provided on the junction box 10. The connection port 9 is located on the end surface of the junction box 10 facing away from the telescopic sleeve 1, that is, the connection port 9 faces the middle of the lifting table, which is more beautiful than being provided on the side and will not be exposed. It is also more conducive to plugging and unplugging the connection cable in the case of a cable trough, which is more ergonomic. The type of the connection port 9 is the same as the type of the external interface 83. In this embodiment, the cable 5 is a power cord, the external interface 83 is a power interface, and the connection port 9 is also a power interface.

[0051] A junction box 10 is also provided with a splitter 11, which is configured to be electrically connected to the control panel and the controller; when the cable 5 is a power line, the ground wire in the power line is connected to the housing 81 of the lifting column, such as the motor box 6, the junction box 10 or the telescopic sleeve 1, and the neutral wire and the live wire in the power line are connected to the splitter 11, and the splitter 11 divides two groups of neutral wires and live wires, so that the two groups of neutral wires and live wires are electrically connected to the control panel and the controller respectively to supply power to the controller and the control panel; the lower end surface of the junction box 10 is provided with a plurality of connection holes 26 for expansion, such as for hanging expansion components such as computer cases. The above-mentioned protection switch 82 includes a button 84, and the button 84 selectively protrudes from the surface of the telescopic sleeve 1; the protection switch 82 is an air switch, and its button 84 can turn off or on the air switch, and the button 84 can protrude from the side of the telescopic sleeve 1, making it more convenient to use and improving safety.

[0052] like Figure 7 , 10 As shown in Figures 11, a limiting plate 12 is arranged in the motor box 6, an opening 13 is arranged at the bottom of the motor box 6, the spiral cable 3 enters the motor box 6 from bottom to top through the opening 13, a first limiting groove 14 is arranged on the limiting plate 12, the spiral cable 3 is inserted into the first limiting groove 14 after entering the motor box 6, and the first straight line segment 31 is exposed upward from the limiting plate 12; an upwardly extending limiting seat 15 is arranged on the limiting plate 12, a second limiting groove 16 is arranged on the limiting seat 15, two spaced limiting bosses 17 are arranged on the first straight line segment 31, the first straight line segment 31 enters the second limiting groove 16 and makes the limiting seat 15 located between the two limiting bosses 17.

[0053] Correspondingly, if Figure 3 , 4, 12, 13, 16, and 17, the locking member 19 is arranged at the lower end of the actuator 2, and the spring cable 3 has a second straight segment 32 at the locking member, and two spaced limiting bosses 17 are arranged on the second straight segment 32; the locking member 19 includes a mounting portion 191 and a restraining portion 192, the mounting portion 191 and the restraining portion 192 are integrally formed, the mounting portion 191 includes two symmetrically arranged locking plates, the two locking plates are vertically arranged at the two ends of the restraining portion 192, the two locking plates can hold the two end faces of the actuator 2 and are connected by screws; the mounting portion 191 is configured to install and fix the locking member 19, the restraining portion 192 is provided with a limiting portion 18, the limiting portion 18 is clamped between the two limiting bosses 17, and the limiting portion 18 is configured to clamp the second straight segment 32 of the spiral cable 3; the restraining portion 192 is also provided with a There are a wire clamping window 20 and a wire clamping groove 21, the wire clamping groove 21 and the limiting portion 18 are respectively located on both sides of the wire clamping window 20, the wire clamping window 20 is configured to clamp the end ring 27 of the spiral cable 3, and the wire clamping groove 21 is configured to clamp the upwardly extending portion of the end ring 27 of the spiral cable 3; the constraint portion 191 is semi-enclosed and elastic, the limiting portion 18 is a C-shaped boss, the center angle of the limiting portion 18 is greater than 180°, the contour of the wire clamping groove 21 is an arc shape, and the center angle of the wire clamping groove 21 is greater than 180°, the center angles of the limiting portion 18 and the wire clamping groove 21 are both greater than 180°, which is beneficial to increase the contact between the constraint portion 192 and the spiral cable 3, and enhance the anti-slip resistance of the constraint portion 192 and the spiral cable 3. Therefore, the constraint portion 191 is elastic to facilitate the constraint portion 191 to be opened and the second straight segment 32 of the spiral cable 3 is clamped in.

[0054] Specifically, the wire clamping window 20 passes through the constraint portion 192 in the horizontal direction, the wire clamping groove 21 is recessed in the horizontal direction, and the opening of the wire clamping groove 21 faces the mounting portion 191; the constraint portion 192 above the wire clamping window 20 forms a pressure plate 28, and the wire clamping groove 21 is opened on the pressure plate 28, and the pressure plate 28 can restrict the end ring 27 of the spiral cable 3 to the wire clamping window 20 to prevent it from being disengaged; when the spiral cable 3 is in a naturally drooping state, its end ring 27 is roughly horizontal, and the horizontal wire clamping window 20 can be used to accommodate and clamp the end ring 27, and the portion of the spiral cable 3 extending upward from the end ring 27 will be clamped into the horizontal wire clamping groove 21, so as to further achieve the effect of locking and preventing the spiral cable 3 from falling off.

[0055] Furthermore, the wire holding window 20 is trumpet-shaped, and the size of the wire holding window 20 gradually decreases from the end far away from the mounting portion 191 to the end close to the mounting portion 191; further, the side wall of the wire holding window 20 is curved in an S shape, and the shrinking trend of the wire holding window 20 can achieve the effect of preventing the end ring 27 of the spiral cable 3 from falling off after being inserted into the wire holding window 20, and the curve of the side wall of the wire holding window 20 can also further enhance the effect of preventing the end ring 27 of the spiral cable 3 from falling off after being inserted.

[0056] In the present solution, only a single locking member 19 is required to lock the end of the spiral cable, which has lower cost and is easier to assemble; the limiting portion 18 plays a major role in locking, and after the locking member 19 is installed on the mounting portion 191, the limiting portion 18 will lock the second straight segment 32 of the spiral cable 3 to keep it stationary; and the wire clamping window 20 and the wire clamping groove 21 play an auxiliary locking role, which can further clamp the end ring 27 of the spiral cable 3 and the upper part thereof, so that the contact between the constraint portion 192 and the spiral cable 3 is increased, and the constraint portion 192 acts on the spiral cable 3 more, on the one hand preventing the second straight segment 32 of the spiral cable 3 from loosening, and on the other hand preventing the spiral cable 3 from aging due to concentrated force; the wire clamping window 20 and the wire clamping groove 21 are used to replace the spiral limiting structure, while achieving the same effect, facilitating mold opening and saving costs.

[0057] like Fig.14 As shown, in the present embodiment, the length of the guide rod 4 is greater than half of the minimum length of the spiral cable 3; when the spiral cable 3 is shortened to the shortest, the lower end of the guide rod 4 is located below the middle of the spiral cable 3, and only a small part of the spiral cable 3 is not sleeved or wrapped around the guide rod 4; when the telescopic sleeve 1 is extended to the longest, only a small part of the spiral cable 3 is on the guide rod 4, but as the telescopic sleeve 1 and the spiral cable 3 are shortened, the swing margin of the spiral cable 3 becomes larger and larger, and the diameter of the spiral cable 3 also becomes larger and larger. While the possibility of knocking becomes greater, since more and more parts of the spiral cable 3 will be on the guide rod 4, correspondingly, the part of the spiral cable 3 that can shake becomes smaller and smaller, making it difficult for the spiral cable 3 to shake and knock the telescopic sleeve 1.

[0058] Specifically, if Figure 3 , 4 As shown in Figures 15, two enclosures 23 are further provided in the telescopic sleeve 1, and the two enclosures are arranged on the push rod shell at intervals. The enclosure 23 is sleeved on the outside of the spring cable 3, and the length of the enclosure 23 in the vertical direction is 4-8 cm. The inner wall of the enclosure 23 is provided with felt. In this embodiment, the length of the enclosure 23 is 5 cm; increasing the number of enclosures 23 can cover more ranges of the spring cables 3, thereby improving the guiding effect, increasing the stability of the elastic cable 3 in telescopic expansion and contraction, and preventing noise; in order to prevent the spring cable 3 from hitting the inner wall of the enclosure 23 and generating noise, felt is provided inside the enclosure 23 to increase buffering and reduce noise; the enclosure 23 is smaller, and compared with the whole tube, it consumes less materials and has lower cost, and can make up for the problem of insufficient guiding effect through quantity.

[0059] Furthermore, the enclosure 23 and the guide rod 4 are arranged to move relative to each other, and the enclosure 23 is configured to guide the extension and retraction of the spring cable 3 on the outside of the spring cable 3; when the telescopic sleeve 1 is extended, the enclosure 23 and the guide rod 4 are separated, and when the telescopic sleeve 1 is shortened, the enclosure 23 and the guide rod 4 are close to each other; specifically, the guide rod 4 is arranged at the upper end of the telescopic sleeve 1 and extends downward; the enclosure 23 is installed on the push rod shell, and the enclosure 23 is C-shaped, and the enclosure 23 includes two curved and symmetrical baffles 24, and the baffles 24 are connected with clamps 25, and the two clamps 25 are connected by screws and hold the push rod shell tightly; the two baffles 24 are attached to each other through the connection of the two clamps 25. The enclosure 23 guides the extension and contraction of the spring cable 3 on the outside of the spring cable 3. When the telescopic sleeve 3 is extended and contracted, the push rod shell and the lower end of the telescopic sleeve 1 remain stationary, and the screw rod drives the upper end of the telescopic sleeve 1 to move. Since the guiding effect of the guide rod 4 is weakened after the spring cable 3 is extended, the enclosure 23 can just make up for this problem and act on the part of the spring cable 3 that the guide rod 4 cannot act on, so that when the spring cable 3 is extended, the guide rod 4 and the enclosure 23 are respectively located at the two ends of the spring cable 3, achieving a better and more comprehensive guiding effect. The advantage of the enclosure 23 being C-shaped is that it is convenient to install the enclosure 23 and the spring cable 3, and it is also convenient to set the felt in the enclosure 23; the two baffles 24 are connected by two clamps 25 to form the enclosure 23, which further facilitates the installation of the enclosure 23 and the spring cable 3.

Claims

1. A cable locking member, characterized in that: It includes an installation part and a restraining part, the installation part is configured to install and fix the locking part, the restraining part is provided with a limiting part, the limiting part is configured to clamp the straight section of the spiral cable; the restraining part is also provided with a wire clamping window and a wire clamping groove, the wire clamping groove and the limiting part are respectively located on both sides of the wire clamping window, the wire clamping window is configured to clamp the end ring of the spiral cable, and the wire clamping groove is configured to clamp the upward extending part of the end ring of the spiral cable.

2. The cable locking member according to claim 1, characterized in that: The restraining portion is in a semi-enclosed shape, the limiting portion is a C-shaped boss, and the center angle of the limiting portion is greater than 180°.

3. The cable locking member according to claim 2, characterized in that: The restraining portion has elasticity.

4. The cable locking member according to claim 1, characterized in that: The wire clamping window passes through the constraint portion in a horizontal direction, the wire clamping groove is concavely formed in a horizontal direction, and the opening of the wire clamping groove faces the installation portion.

5. The cable locking member according to claim 4, characterized in that: The outline of the wire clamping groove is an arc shape, and the center angle of the wire clamping groove is greater than 180°.

6. The cable locking member according to claim 1, characterized in that: The wire clamping window is in a trumpet shape, and the size of the wire clamping window gradually decreases from an end far from the mounting portion to an end close to the mounting portion.

7. The cable locking member according to claim 6, characterized in that: The side wall of the wire clamping window is curved in an S shape.

8. The cable locking member according to claim 1, characterized in that: The mounting portion comprises two symmetrically arranged locking plates, and the two locking plates are vertically arranged at two ends of the restraining portion.

9. The cable locking member according to claim 1, characterized in that: The mounting portion and the restraining portion are integrally formed.

10. The cable locking member according to claim 1, characterized in that: The restraining part above the wire clamping window forms a pressing plate, and the wire clamping groove is arranged on the pressing plate.

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