Cable locker

Abstract

The utility model provides a cable locker. The cable locker comprises a head part, an outer sleeve, an inner core, a locking structure and a tensioning structure, the head is connected with an outer sleeve; the inner core is slidably arranged in the outer sleeve; the tensioning structure is connected with the inner core and is used for driving the inner core to slide; the head part is provided with a head threading hole through which a cable can penetrate, the inner core is provided with an inner threading hole through which the cable can penetrate, and an outlet of the head threading hole is communicated with an inlet of the inner threading hole; the locking structure is arranged on the inner core, and the locking structure is used for locking a cable penetrating through the inner threading hole. When the cable is used, after the cable passes through the head threading hole and the inner threading hole, the cable is locked through the locking structure located on the inner core, then the tensioning structure drives the inner core to slide in the outer sleeve, the inner core drives the cable to move, and the cable is further tensioned, so that the cable tightening accuracy is improved; therefore, the locking effect of the cable is enhanced, and the adverse effect on the operation effect and safety is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable locking devices, in particular to a cable locker. Background Art

[0002] Cables can be used in a variety of orthopedic surgeries in the medical field, including fixation of limb fractures, spinal surgery, periprosthetic fractures and fusion surgery of the upper cervical spine. In these surgeries, traditional fixation methods include steel wires, screws, steel plates, etc., but these methods have some disadvantages, such as easy infection, difficult to fix, and difficult to remove. As a new type of fixation method, cables have the following advantages: 1. Excellent materials: The cables are made of titanium alloy materials, stainless steel and other materials, with excellent biocompatibility and corrosion resistance, and will not cause human rejection. 2. Simple operation: The use of cables is simple, the operation time is short, and the bones can be fixed quickly and accurately. 3. Reliable fixation: The cables can firmly fix the bones and are not easy to fall off. 4. Strong adjustability: The cables are highly adjustable and can be adjusted according to the specific conditions of the patient to meet different surgical needs. 5. Easy to remove: Compared with fixing screws, cables can be removed without damaging the bones and leaving no residue. The tightening of the cable requires a special locking device. In orthopedic surgery and other fields, cable lockers have become a commonly used medical device with broad application prospects.

[0003] The prior art discloses an orthopedic cable locker, which includes a sleeve, wherein the head of the sleeve is the distal end of the locker, and the tail of the sleeve is the proximal end of the locker. The distal end is the end of the locker close to the patient, and the proximal end is the end of the locker close to the operator. The head of the sleeve is provided with a threading port, and a threading channel is provided in the body between the head and the tail of the sleeve. The threading port and the threading channel are connected, and a compression structure for locking the cable is provided on the sleeve, and the compression structure is located at the proximal end of the threading channel. When the cable locker is in use, the cable passes through the threading port and the threading channel in sequence, and then the cable at the outlet of the threading channel is compressed by the compression structure.

[0004] In view of the shortcomings of the prior art, the inventors believe that in the above technology, after the cable is compressed by the compression structure, the cable is tightened by pulling the sleeve, and the accuracy of tightening the cable is poor, and thus the locking effect of the cable is poor, which may have an adverse effect on the effect and safety of the operation. Utility Model Content

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a cable locker.

[0006] To achieve the above-mentioned purpose, the utility model provides a cable locker, comprising a head, an outer sleeve, an inner core, a locking structure and a tensioning structure;

[0007] The head is connected to the outer sleeve;

[0008] The inner core is slidably arranged in the outer sleeve;

[0009] The tensioning structure is connected to the inner core, and the tensioning structure is used to drive the inner core to slide;

[0010] The head is provided with a head threading hole for inserting the cable, the inner core is provided with an inner threading hole for passing the cable, and the outlet of the head threading hole and the inlet of the inner threading hole are connected;

[0011] The locking structure is arranged on the inner core, and is used for locking the cable passing through the inner threading hole.

[0012] Preferably, the head is a straight head or an elbow head.

[0013] Preferably, the head is detachably connected to the outer sleeve.

[0014] Preferably, the locking structure comprises a locking member and a locking matching member for cooperating with the locking cable;

[0015] The locking piece is fixedly connected to the inner core, and the locking piece is cooperatively connected to the locking matching piece;

[0016] The locking piece is provided with a locking threading hole for passing the cable, and the locking threading hole is connected to the outlet of the inner threading hole.

[0017] Preferably, the locking structure further comprises a limiting member for limiting the locking fitting;

[0018] The limiting member is connected with the locking member in cooperation.

[0019] Preferably, the locking structure further includes a spring washer;

[0020] The spring washer is sleeved on the locking piece, and the spring washer is located between the locking fitting and the locking threading hole.

[0021] Preferably, the outer sleeve is provided with a moving hole for facilitating the movement of the locking structure.

[0022] Preferably, the inner core is provided with a limiting member for limiting the rotation of the inner core;

[0023] The outer sleeve is slidably connected to the limiting member.

[0024] Preferably, an elastic structure is sleeved on the proximal end of the inner core.

[0025] Preferably, the tensioning structure includes a push rod and a handle;

[0026] One end of the push rod is connected to the proximal end of the inner core, and the other end of the push rod is connected to the handle;

[0027] The distal end of the outer sleeve is provided with a rear cover.

[0028] Preferably, a limiting hole is provided at the distal end of the outer sleeve;

[0029] The push rod upper fixed sleeve is provided with a limit block, and the limit block is placed in the limit hole.

[0030] Preferably, a protrusion structure is provided on the push rod;

[0031] The protruding structure is arranged inside the back cover.

[0032] Preferably, a gasket is sleeved on the push rod;

[0033] The gasket is placed in the back cover, and the gasket is located between the limiting block and the protruding structure.

[0034] Preferably, the head is provided with a clamping structure for clamping the cable;

[0035] The head is connected to the outer sleeve via a clamping structure.

[0036] Preferably, the clamping structure comprises an upper locking member, a lower locking member, a wrench and a pin;

[0037] The upper locking member is provided with an upper locking tooth, and the lower locking member is provided with a lower locking tooth, and the upper locking tooth and the lower locking tooth are arranged opposite to each other;

[0038] The cable passes between the upper locking teeth and the lower locking teeth;

[0039] The wrench is rotatably connected to the lower locking member via a pin, and the wrench is used to drive the lower locking teeth to engage with the upper locking teeth.

[0040] Preferably, the clamping structure further comprises a plurality of elastic members;

[0041] The elastic member is located between the upper locking member and the lower locking member, and the elastic member is arranged around the lower locking tooth.

[0042] Compared with the prior art, the beneficial effects of the utility model are:

[0043] 1. When the cable locker of the utility model is used, after the cable passes through the head threading hole and the inner threading hole, the cable is locked by the locking structure located on the inner core, and then the tensioning structure drives the inner core to slide in the outer sleeve, and the inner core drives the cable to move, and the cable is further tightened by the tensioning structure driving the inner core to slide, thereby improving the accuracy of tightening the cable, thereby strengthening the locking effect of the cable and reducing the adverse effects on the effect and safety of the operation;

[0044] 2. When the cable locker of the utility model is in use, the head can be detachably connected to the outer sleeve, and can be disassembled and replaced according to actual surgical needs to adapt to different surgical needs, thereby improving the applicability of the cable locker;

[0045] 3. The utility model has an elastic structure between the inner core and the outer sleeve. When the inner core slides along the axial direction, it plays a damping function, providing a more accurate and efficient surgical experience, and can quickly and accurately control the tightening force and angle of the cable, thereby improving the efficiency and quality of the surgery;

[0046] 4. The utility model locker is provided with a double locking and fixing mechanism of a clamping structure and a locking structure, which further improves the firmness of the cable locking and the effect of locking the cable. It is suitable for complex fracture surgeries, such as surgeries with relatively serious fractures, and is convenient for doctors to operate in different parts, thereby improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a front view of a straight cable locker in Embodiment 1 of the present utility model;

[0048] Figure 2 This is an exploded view of the straight cable locker in the first embodiment of the utility model;

[0049] Figure 3 This is a structural diagram of a straight cable locker locking a cable in Embodiment 1 of the utility model;

[0050] Figure 4 This is a cross-sectional view of a straight cable locker in Embodiment 1 of the present utility model;

[0051] Figure 5 This is an axonometric view of a straight cable locker in Embodiment 1 of the present utility model;

[0052] Figure 6 This is a front view of the elbow type cable locker in the second embodiment of the utility model;

[0053] Figure 7 This is a schematic diagram of an elbow-type head in Embodiment 2 of the present utility model;

[0054] Figure 8 This is an exploded view of the elbow-type head in the second embodiment of the present utility model;

[0055] Fig. 9 It is a cross-sectional view of the elbow-type head in the second embodiment of the present utility model.

[0056] Reference numerals:

[0057] 1. Head; 2. Outer sleeve; 3. Inner core; 4. Cable; 5. Locking structure; 501. Locking piece; 502. Locking fitting; 503. Limiting piece; 504. Spring washer; 6. Tensioning structure; 601. Push rod, 602; Handle; 7. Head threading hole; 8. Inner threading hole; 9. Limiting piece; 10. Elastic structure; 11. Moving hole; 12. Sliding hole; 13. Back cover; 14. Limiting block; 15. Gasket; 16. Raised structure; 17. Inner core waist-shaped hole; 18. Locking threading hole; 19. Clamping structure; 1901. Upper locking piece; 1902. Lower locking piece; 1903. Wrench; 1904. Elastic piece; 1905. Pin; 20. Lead tube; 21. Limiting hole. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with general skills in the field to which the utility model belongs.

[0059] It is worth noting that the term "distal end" herein refers to the end away from the operator and closer to the patient; the term "proximal end" refers to the end close to the operator and away from the patient.

[0060] The utility model discloses a cable locker. Figure 1 and Figure 2 As shown, it includes a head 1, an outer sleeve 2, an inner core 3, a locking structure 5 and a tensioning structure 6. The head 1 is connected to the outer sleeve 2; the inner core 3 is slidably arranged in the outer sleeve 2; the tensioning structure 6 is connected to the inner core 3, and the tensioning structure 6 is used to drive the inner core 3 to slide. Figure 3 and Figure 4 As shown, the head 1 is provided with a head threading hole 7 for inserting the cable 4, the inner core 3 is provided with an inner threading hole 8 for passing the cable 4, and the outlet of the head threading hole 7 and the inlet of the inner threading hole 8 are connected; the locking structure 5 is provided on the inner core 3, located at the outlet of the inner threading hole 8, and the locking structure 5 is used to lock the cable 4 passing through the inner threading hole 8. The tensioning structure 6 tightens the cable 4 locked by the locking structure 5 by driving the inner core 3.

[0061] The head 1 can be detachably connected to the outer sleeve 2. For example, the head 1 can be connected to the outer sleeve 2 through a quick-release connector, or the head 1 can be threadedly connected to the outer sleeve 2. The head 1 can be a standard straight head. The inner core 3 is slidably arranged in the outer sleeve 2 along its own axial direction. The cable 4 can be made of titanium cable, stainless steel wire, polymer wire, etc.

[0062] like Figure 2 and Figure 4 As shown, the outer sleeve 2 is provided with a moving hole 11 for facilitating the movement of the locking structure 5 ; the base of the locking structure 5 is located in the moving hole 11 .

[0063] The inner core 3 is provided with a limiting member 9 for limiting the rotation of the inner core 3, and the outer sleeve 2 is slidably connected to the limiting member 9 to limit the circumferential rotation of the inner core 3. The inner core 3 is provided with a sink groove, which is matched and connected with the limiting member 9, for example, the sink groove and the limiting member 9 are connected by interference fit, or the limiting member 9 is a limiting nut, and the limiting member 9 and the sink groove are connected by threads. The outer sleeve 2 is provided with a sliding hole 12, and the limiting member 9 is slidably connected to the sliding hole 12, and the limiting member 9 slides along the axial direction of the inner core 3 to limit the rotation of the inner core 3.

[0064] An elastic structure 10 is sleeved on the proximal end of the inner core 3, and after the elastic structure 10 is sleeved, the outer diameter of the proximal end of the inner core 3 is consistent with the outer diameter of the distal end of the inner core 3. During installation, the elastic structure 10 is placed into the outer sleeve 2 together with the inner core 3. When the inner core 3 slides axially, the inner core 3 pushes the elastic structure 10, and the elastic structure 10 generates elastic deformation, and the elastic deformation direction of the elastic structure 10 is the axial direction of the inner core 3. The elastic structure 10 can be a spring, or the elastic structure 10 can be a plurality of groups of shrapnel, and the shrapnel can be a sheet-like shrapnel with a hollow structure. The elastic structure 10 plays a damping role during the movement of the inner core 3, so that the force of the movement of the inner core 3 can be controlled, and the cable 4 can be tightened more accurately.

[0065] like Figure 3 and Figure 4As shown, the locking structure 5 includes a locking member 501 and a locking fitting member 502 for locking the cable 4; the locking member 501 is fixedly connected to the inner core 3, and the locking member 501 is matched with the locking fitting member 502; the locking member 501 is provided with a locking threading hole 18 for passing the cable 4, and the locking threading hole 18 is connected to the outlet of the inner threading hole 8, and the cable 4 passes out through the locking threading hole 18. The locking member 501 and the inner core 3 can be fixed by welding, and the inner core 3 is provided with an inner core waist-shaped hole 17, and the bottom of the locking member 501 is welded in the inner core waist-shaped hole 17. The locking fitting member 502 is sleeved on the locking member 501, and the locking member 501 has a locking thread, which is a screw rod part, and the locking fitting member 502 is a locking nut, and the locking nut is, for example, a dovetail nut, which is a screw sleeve. The locking piece 501 is threadedly connected to the locking fitting 502. The cable 4 passing through the locking threading hole 18 is located between the locking fitting 502 and the inner core 3. The locking fitting 502 moves downward relative to the locking piece 501. The locking fitting 502 presses the cable 4 at the locking threading hole 18 to lock the cable 4. After locking, the cable 4 becomes one with the inner core 3.

[0066] The locking structure 5 further includes a limiting member 503 for limiting the locking fitting 502; the limiting member 503 is connected to the locking member 501. The limiting member 503 is arranged on the side of the locking fitting 502 away from the inner core 3, and the limiting member 503 is sleeved on the locking member 501. The limiting member 503 is, for example, a limiting nut, and the locking thread on the locking member 501 is threadedly connected with the limiting member 503, so that the limiting member 503 can press the locking fitting 502 to prevent the locking fitting 502 from falling off.

[0067] The locking structure 5 also includes a spring washer 504, which is slidably mounted on the locking member 501 and is located between the locking fitting 502 and the locking threading hole 18 in the locked state to compress the cable 4. The spring washer 504 can also be clamped on the locking fitting 502 and move with the locking fitting 502.

[0068] like Figure 4 and Figure 5 As shown, the tensioning structure 6 includes a push rod 601 and a handle 602, one end of the push rod 601 is connected to the proximal end of the inner core 3, and the other end of the push rod 601 is connected to the handle 602. The handle 602 can be a crossbar. A thread groove is provided at the proximal end of the inner core 3, and the push rod 601 is threadedly connected to the thread groove. A rear cover 13 is provided at the distal end of the outer sleeve 2; the rear cover 13 and the outer sleeve 2 can be fixed in an interference fit manner to block the distal end of the outer sleeve 2. The rear cover 13 is provided with a hole, and the push rod 601 slides through the rear cover 13 to connect with the inner core 2.

[0069] A limit hole 21 is provided at the distal end of the outer sleeve 2 to limit the moving distance of the push rod 601. A limit block 14 is fixedly sleeved on the push rod 601, and the limit block 14 is slidably connected to the limit hole 21, and the limit block 14 can move axially with the push rod 601. The push rod 601 and the limit block 14 are interference fit, and the length of the limit hole 21 is the movable and adjustable distance of the push rod 601. In some embodiments, the limit block 14 can be a T-block, and the part of the T-block located outside the limit hole 21 can be used to display the moving position of the push rod 601.

[0070] In some specific embodiments, a protruding structure 16 is further provided on the push rod 601; the protruding structure 16 may be a bump integrally formed around the push rod 601, and the protruding structure 16 is provided in the back cover 13 to prevent the push rod 601 from being pulled out.

[0071] In some specific embodiments, a gasket 15 is also sleeved on the push rod 601, and the gasket 15 and the push rod 601 are connected with a clearance fit. The gasket 15 is placed in the back cover 13 and sleeved between the limit block 14 and the protrusion mechanism 16 to achieve a damping and buffering function.

[0072] The cable 4 of the utility model passes through the head 1, the inner core 3 and the locking threading hole 18 in sequence, and then the dovetail nut is tightened in a clockwise or counterclockwise direction, so as to achieve the effect of locking the cable 4. The direction of tightening the dovetail nut is determined according to the direction of the thread. To tighten the cable 4, rotate the handle 602 in a clockwise or counterclockwise direction so that the thread of the push rod 601 is tightly engaged with the thread groove at the proximal end of the inner core 3, and the direction of rotating the handle 602 is also determined according to the direction of the thread. Since the limiting nut at the bottom of the cable locker is tightly stuck with the thread of the inner core 3, and the cable 4 becomes one with the inner core 3 after locking, pulling the handle 602 backward will cause the inner core 3 to drive the cable 4 to move backward as a whole, thereby achieving the effect of tightening the cable 4.

[0073] The utility model improves the surgical effect and safety. By arranging multiple groups of spring pieces between the inner core 3 and the outer sleeve 2, the doctor has a certain degree of controllability during the tightening process, which can ensure that the tightening effect of the cable locker is stable and reliable, providing a more precise and efficient surgical experience. The tightening force and angle of the cable 4 can be quickly and accurately controlled, thereby improving the efficiency and quality of the operation.

[0074] The locking thread, the limit nut, the dovetail nut and the spring washer 504 cooperate with the locking device of the utility model so that the product can provide a safer, more reliable and more efficient solution for surgery, which helps to improve the surgical effect and reduce the surgical risk, and provide better medical services for patients.

[0075] The utility model product can provide more accurate and efficient functions of fastening and fixing titanium cables in surgery. At the same time, the head type can be disassembled and replaced according to actual surgical needs to adapt to different surgical needs and provide more flexible and personalized surgical solutions.

[0076] The second embodiment of the utility model also discloses a cable locker, such as Figure 6 and Figure 7 As shown, the difference from the first embodiment is that the head 1 is an elbow-type head, the head 1 is provided with a lead tube 20, and also includes a clamping structure 19 for clamping the cable 4, the head 1 is connected to the outer sleeve 2 through the clamping structure, and the lead tube 20 is connected to the clamping structure through a quick connector, or the lead tube 20 and the clamping structure are threadedly connected. The standard straight head is suitable for conventional fixation surgery, while the elbow head is suitable for more complex and special surgeries.

[0077] like Figure 8 As shown, the clamping structure 19 includes an upper locking member 1901, a lower locking member 1902, a wrench 1903, a plurality of elastic members 1904 and a pin 1905. Figure 7 , Figure 8 and Fig. 9 As shown, an upper locking tooth is provided on the upper locking member 1901, and a lower locking tooth is provided on the lower locking member 1902. The upper locking tooth and the lower locking tooth are arranged oppositely, and the cable 4 passes between the upper locking tooth and the lower locking tooth. The wrench 1903 is rotatably connected to the lower locking member 1902 through the pin 1905, and the wrench 1903 is used to drive the lower locking tooth to engage the upper locking tooth; the wrench 1903 abuts against the upper locking member 1901, and the part abutting against the upper locking member 1901 is a wedge-shaped structure. The elastic member 1904 is located between the upper locking member 1901 and the lower locking member 1902. In some specific embodiments, the elastic member 1904 is arranged around the lower locking tooth. The elastic member 1904 can be a spring, and the number of springs is not particularly limited, and can be 2, 4, 6 or more.

[0078] In some specific embodiments, the clamping structure is disposed between the curved lead tube 20 and the locking structure 5, the wrench 1903 is lifted upward, and the cable 4 passes through the lead tube 20, between the upper locking teeth and the lower locking teeth, and the tail of the upper locking member 1901 in sequence; the wrench 1903 is pressed downward, the upper locking teeth and the lower locking teeth are engaged to initially lock the cable 4, and then the cable 4 passes through the inner core 3 and the locking threading hole 18, and is locked by the locking structure 5. Then, the inner core 3 is driven to move through the tensioning structure 6, which causes the inner core 3 to drive the cable 4 to move backward as a whole, thereby tightening the cable 4.

[0079] The utility model can accurately control the cerclage force of the cable 4, and can avoid cutting the bone due to excessive pulling force under appropriate tension conditions, while ensuring stable and effective fixation. The curved locker of the utility model is provided with a double locking mechanism, which is suitable for complex fracture surgeries, such as surgeries with relatively serious fractures, and is convenient for doctors to operate in different parts, thereby improving surgical efficiency. The utility model further optimizes the design of its head 1 and the locking and tightening mechanism, which can ensure that the cable 4 locker can effectively fix the cable 4 and provide a reliable tightening effect. The use of this product can reduce surgical time and cost, improve surgical efficiency and the utilization efficiency of medical resources, and can also bring more economic benefits to medical institutions.

[0080] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as described in the claims. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A cable locker, characterized in that: It comprises a head (1), an outer sleeve (2), an inner core (3), a locking structure (5) and a tensioning structure (6); The head (1) is connected to the outer sleeve (2); The inner core (3) is slidably disposed inside the outer sleeve (2); The tensioning structure (6) is connected to the inner core (3), and the tensioning structure (6) is used to drive the inner core (3) to slide; The head (1) is provided with a head threading hole (7) for inserting a cable (4), the inner core (3) is provided with an inner threading hole (8) for passing the cable (4), and the outlet of the head threading hole (7) and the inlet of the inner threading hole (8) are connected; The locking structure (5) is arranged on the inner core (3), and the locking structure (5) is used to lock the cable (4) passing through the inner threading hole (8).

2. The cable locker according to claim 1, characterized in that: The head (1) is a standard straight head or an elbow head.

3. The cable locker according to claim 1, characterized in that: The head (1) is detachably connected to the outer sleeve (2).

4. The cable locker according to claim 1, characterized in that: The locking structure (5) comprises a locking piece (501) and a locking matching piece (502) that cooperate with the locking cable (4); The locking piece (501) is fixedly connected to the inner core (3), and the locking piece (501) is cooperatively connected to the locking matching piece (502); The locking member (501) is provided with a locking threading hole (18) for passing the cable (4), and the locking threading hole (18) is connected to the outlet of the inner threading hole (8).

5. The cable locker according to claim 4, characterized in that: The locking structure (5) further comprises a limiting member (503) for limiting the locking fitting member (502); The limiting member (503) cooperates with the connecting locking member (501).

6. The cable locker according to claim 4, characterized in that: The locking structure (5) further includes a spring washer (504); The spring washer (504) is sleeved on the locking piece (501), and the spring washer (504) is located between the locking fitting (502) and the locking threading hole (18).

7. The cable locker according to claim 1, characterized in that: The outer sleeve (2) is provided with a moving hole (11) for facilitating the movement of the locking structure (5).

8. The cable locker according to claim 1, characterized in that: The inner core (3) is provided with a limiting member (9) for limiting the rotation of the inner core (3); The outer sleeve (2) is slidably connected to the limiting member (9).

9. The cable locker according to claim 1, characterized in that: An elastic structure (10) is sleeved on the proximal end of the inner core (3).

10. The cable locker according to claim 1, characterized in that: The tensioning structure (6) comprises a push rod (601) and a handle (602); One end of the push rod (601) is connected to the proximal end of the inner core (3), and the other end of the push rod (601) is connected to the handle (602); A rear cover (13) is provided at the distal end of the outer sleeve (2).

11. The cable locker according to claim 10, characterized in that: The outer sleeve (2) has a limiting hole (21) at the distal end thereof; The push rod (601) is fixedly sleeved with a limit block (14), and the limit block (14) is placed in the limit hole (21).

12. The cable locker according to claim 11, characterized in that: The push rod (601) is provided with a protruding structure (16); The protruding structure (16) is arranged inside the rear cover (13).

13. The cable locker according to claim 12, characterized in that: The push rod (601) is sleeved with a gasket (15); The gasket (15) is placed inside the rear cover (13), and the gasket (15) is located between the limiting block (14) and the protruding structure (16).

14. The cable locker according to claim 1, characterized in that: The head (1) is provided with a clamping structure (19) for clamping the cable (4); The head (1) is connected to the outer sleeve (2) via a clamping structure (19).

15. The cable locker according to claim 14, characterized in that: The clamping structure (19) comprises an upper locking piece (1901), a lower locking piece (1902), a wrench (1903) and a pin (1905); The upper locking piece (1901) is provided with an upper locking tooth, and the lower locking piece (1902) is provided with a lower locking tooth, and the upper locking tooth and the lower locking tooth are arranged opposite to each other; The cable (4) passes between the upper locking teeth and the lower locking teeth; The wrench (1903) is rotatably connected to the lower locking member (1902) via a pin (1905), and the wrench (1903) is used to drive the lower locking teeth to engage with the upper locking teeth.

16. The cable locker according to claim 15, characterized in that: The clamping structure (19) further includes a plurality of elastic members (1904); The elastic member (1904) is located between the upper locking member (1901) and the lower locking member (1902), and the elastic member (1904) is arranged around the lower locking tooth.

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