CN110970848A

CN110970848A - Leaky cable clamp with multiple self-locking function

Info

Publication number: CN110970848A
Application number: CN201911175891.3A
Authority: CN
Inventors: 陈国华; 王建军; 吴晓; 孙占伟
Original assignee: Jiangsu Wutong Internet Of Things Technology Co ltd
Current assignee: Jiangsu Wutong Internet Of Things Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-04-07

Abstract

The invention discloses a leaky cable clamp with multiple self-locking functions, which comprises a fixed seat and a clamp cover, wherein the fixed seat is used for fixing a leaky cable, the fixed seat is provided with a first clamping jaw and a second clamping jaw, the clamp cover is provided with a rotating part and a clamping part, the clamping part of the clamp cover is in clamping connection with the second clamping jaw, anti-loosening structures which can be installed in a matched mode are respectively arranged on the clamping part and the hook clamping surface of the second clamping jaw, each anti-loosening structure comprises a limiting hole and a limiting bulge, and when the clamping part is in clamping connection with the second clamping jaw, the limiting bulge is positioned in the limiting hole; the rotating part of card lid with first jack catch rotatable coupling, first jack catch, second jack catch and card lid form the chamber that holds that supplies the leaky cable to pass. The leaky cable clamp is integrally installed and is convenient and fast to install; the expansion anchor bolt fastening mode is adopted, multiple self-locking is realized, the safety and the reliability are realized, and the tensile bearing capacity and the shearing bearing capacity are strong.

Description

Leaky cable clamp with multiple self-locking function

Technical Field

The invention relates to the technical field of urban rail transit wireless communication, in particular to a leaky cable clamp with multiple self-locking functions.

Background

By the end of 2018, 185 urban rail transit operation lines are opened in 35 cities in non-Hongkong and Australia platform areas in China, and the total length of the operation lines is 5761.4 kilometers. The new service line length is 728.7 km in the current year. The length of the newly added service line is accumulated to 2143.4 km. And when the total length of the constructed line is 6374 kilometers and in 2018, the planning of urban rail transit network in 63 cities is approved.

With the rapid development of urban rail transit in China and the mature application of 5G mobile communication technology, the leaky cable serving as an optimal signal transmission medium in the technical field of urban rail transit wireless communication is also widely applied. The wireless communication system applied in the urban rail transit field comprises: a TETRA350 public security/fire fighting wireless communication system, a TETRA800 digital trunking private network wireless communication system, an LTE-M vehicle-ground wireless transmission comprehensive bearing signal system, a public mobile communication system of china mobile, china unicom and china telecom, and a PIS passenger information wireless communication system. According to statistics, the number of the leaky cables applied to the wireless communication system reaches 7, namely, uplink and downlink lines, 14 kilometers of leaky cables are cumulatively applied to carry out signal coverage of different wireless communication systems every kilometer, and 1.4 thousands of leaky cable clamps are correspondingly matched.

At present, the urban rail transit in China is high in development speed, the train operation speed is continuously increased, the urban rail transit is developed from the initial speed per hour of 60km/h to the current speed per hour of 100km/h, 160km/h and higher speed in the future, and a quick, convenient and low-carbon transportation tool is provided for public travel. Due to the continuous improvement of the operation speed of the urban railway train, the piston effect generated in the tunnel by the train generates great test on the leaky cable clamp installed on the tunnel wall, and the leaky cable clamp must withstand the influence of a series of severe environmental factors such as tunnel piston effect, strong impact load, impact force, wind vibration and fatigue resistance of the train under the condition of high-speed operation, so that the material, structure and performance of the leaky cable clamp must meet the environmental requirement of high-speed train operation; the prior leaky cable clamp cannot meet the requirements of the current rail traffic environment.

The structure of a leaky cable clamp widely applied to the wireless communication system of the urban rail transit is shown in fig. 1, and the leaky cable clamp is composed of a nylon base 11, a nylon clamp bundle 12, a stainless steel nail 13 and a nylon expansion plug 14. Through long-term application, the leaky cable clamp has the following problems:

1. the nylon clasp 16 has no self-locking function. The change of the outer diameter of the leaky cable easily causes the nylon fastener 16 to have different tightness, and the nylon fastener 16 is easily disengaged when the outer diameter of the leaky cable is increased or decreased;

2. the nylon card bundle 12 joints 15 are easily broken. The leaky cable clamp is laid in a low-temperature working environment or a low-temperature environment for a long time, the joint 15 is stressed in multiple directions, and the joint is easy to break;

3. the tensile bearing capacity and the shearing resistance bearing capacity are small. Because the nylon buckle 16 only has the function of a hook and does not have the self-locking function, when the leaky cable clamp bears tensile bearing capacity and shearing bearing capacity, the buckle is easy to disengage;

4. the installation is inconvenient, and the installation problem easily appears. When the leaky cable clamp is installed, the nylon expansion plug 14 is pushed into a hole which is punched in advance in the tunnel wall, then the stainless steel nail 13 sequentially penetrates through the nylon clamp bundle 12 and the nylon base 11 to be screwed with the nylon expansion plug 14, the operation is troublesome, and the installation efficiency is affected. In addition, in order to improve the installation efficiency, a field installer often directly strikes the pre-installed nylon base 11, the nylon clamp 12, the stainless steel nail 13 and the nylon expansion plug 14 into a hole in the tunnel wall by using a hammer, so that the nylon expansion plug 14 is easily too deep into the hole or damaged, and the installation reliability of the leaky cable clamp is affected.

Another type of leaky cable clamp structure widely used in the wireless communication system of urban rail transit is shown in fig. 2, and the leaky cable clamp structure is composed of a nylon base 11, a nylon clamping seat 21, a nylon cover plate 22, a connecting rope 23, a fastening bolt 24, a metal connecting rod 25, a hexagon nut 26, a spring washer 27, a flat washer 28 and an expansion anchor bolt 29. Through long-term application, the problems are found to be in several aspects:

1. the whole structure has no self-locking function. The cover plate can still be disengaged due to the thickness change of the outer diameter of the leaky cable and the action of external force on the leaky cable;

2. the connection string 23 or the connection band is easily broken. Because the connecting rope 23 or the connecting belt is fine, the leaky cable clamp is easily broken by the connecting rope 23 or the connecting belt to influence the safety of the clamp when being subjected to impact load, impact force and wind vibration generated by a piston effect when a train passes by in the installation process or for a long time;

3. the installation is inconvenient. When the expansion anchor bolt 29 is installed firmly, the metal connecting rod 25, the nylon base 11, the nylon clamp 12 and the fastening bolt 24 are installed firmly in sequence, and the number of installation parts is large, so that the installation efficiency is low.

Therefore, in combination with the above-mentioned technical problems, there is a need to provide a new technical solution.

Disclosure of Invention

The leaky cable clamp realizes the self-locking function of multiple structures through unique design, adopts the most advanced three-dimensional pneumatic finite element analysis software to carry out analog simulation, analyzes the leaky cable and the basic wind pressure of the clamp, and ensures the safe reliability of the leaky cable clamp in a high-speed environment. The specific technical scheme is as follows:

the invention relates to a leaky cable clamp with multiple self-locking functions, which comprises a fixed seat and a clamp cover, wherein the fixed seat is used for fixing a leaky cable, the fixed seat is provided with a first clamping jaw and a second clamping jaw, the clamp cover is provided with a rotating part and a clamping part, the clamping part of the clamp cover is in clamping connection with the second clamping jaw, the clamping part and the hook clamping surface of the second clamping jaw are respectively provided with an anti-loosening structure which can be installed in a matched mode, the anti-loosening structure comprises a limiting hole and a limiting bulge, and when the clamping part is in clamping connection with the second clamping jaw, the limiting bulge is positioned in the limiting hole; the rotating part of card lid with first jack catch rotatable coupling, first jack catch, second jack catch and card lid form the chamber that holds that supplies the leaky cable to pass.

Furthermore, the connecting end of the second claw is provided with two elastic hooks which are a first hook and a second hook respectively,

the hook tip of the first hook and the hook tip of the second hook are opposite to form a hook cavity, a gap is formed between the hook tip of the first hook and the hook tip of the second hook, and the gap is communicated with the hook cavity.

Further, the axial direction of the hook cavity coincides with the axial direction of the accommodation cavity.

Furthermore, the clamping part of the clamping cover is provided with a third clamping hook and a fourth clamping hook which are respectively matched with the first clamping hook and the second clamping hook for clamping.

Furthermore, the inner wall of the clamping cover is provided with a reinforcing rib, the length direction of the reinforcing rib is consistent with that of the clamping cover, and the reinforcing rib extends to the rotating part of the clamping cover from the hook clamping surface of the third clamping hook;

the hook tip of the first hook is provided with a limiting groove, and when the clamping part of the clamping cover is clamped in the hook cavity, the reinforcing rib is positioned in the limiting groove.

Furthermore, the limiting hole is formed in the hooking surface of the second hook, and the limiting protrusion is located on the hooking surface of the fourth hook; or

The limiting hole is formed in the hooking surface of the fourth hook, and the limiting protrusion is located on the hooking surface of the second hook.

Further, the fixing seat is fixed on the installation surface through a fixing piece, the fixing piece comprises a bolt, an expansion pipe and a bottom expanding nut, the expansion pipe is located on one side, away from the accommodating cavity, of the fixing seat, and the bolt sequentially penetrates through the fixing seat, the expansion pipe and the bottom expanding nut.

Furthermore, the fixing seat comprises a base and a clamping seat, the first clamping jaw and the second clamping jaw are both located on the clamping seat, the clamping seat is installed at one end of the base, and a limiting structure for limiting the relative rotation of the base and the clamping seat along the central axis of the base is arranged between the base and the clamping seat.

Furthermore, the base is in a hollow frustum shape with one open end, the end with larger diameter is an open end,

the base comprises a shell and a hollow pipe, the hollow pipe is positioned in an inner cavity of the shell, the central axis of the hollow pipe is consistent with that of the base, the bolt penetrates through the hollow pipe, and a gasket is arranged between the expansion pipe and the hollow pipe;

and a plurality of reinforcing plates which are distributed at equal angles along the central axis of the hollow pipe are arranged between the outer wall of the hollow pipe and the inner wall of the shell.

Furthermore, at least two elastic pressing plates are arranged on the inner wall of the clamping cover at intervals, and when the leakage cable passes through the accommodating cavity, the inner walls of the pressing plates are attached to the outer surface of the leakage cable.

The leaky cable clamp with the multiple self-locking function has the following beneficial effects:

(1) the leaky cable clamp with the multiple self-locking functions adopts an integral installation mode, is convenient and fast to install, and simultaneously improves the installation efficiency;

(2) the leaky cable clamp with the multiple self-locking functions adopts an expansion anchor bolt fastening mode, and is safer and more reliable than the traditional nylon expansion pipe anchoring mode;

(3) the leakage cable clamp with multiple self-locking functions has the advantages that the anti-loosening structure is arranged at the clamping hook, multiple self-locking is realized, and the tensile bearing capacity and the shearing bearing capacity of the leakage cable clamp are greatly improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a conventional leaky cable clamp;

FIG. 2 is a schematic structural diagram of another conventional leaky cable clamp;

FIG. 3 is a schematic view of a leaky cable clamp according to an embodiment;

FIG. 4 is a schematic structural diagram of a card socket according to an embodiment;

FIG. 5 is a schematic structural diagram of a card socket according to an embodiment;

FIG. 6 is a schematic view of a card cover according to an embodiment;

FIG. 7 is a schematic structural diagram of a base according to an embodiment;

FIG. 8 is a schematic structural diagram of a base according to an embodiment;

fig. 9 is a schematic structural view of a second leaky cable clamp according to an embodiment.

Wherein, 11-nylon base, 12-nylon fastener, 13-stainless steel nail, 14-nylon expansion plug, 15-joint, 16-nylon fastener, 21-nylon fastener, 22-nylon cover plate, 23-connecting rope, 24-fastening bolt, 25-metal connecting rod, 26-hexagon nut, 27-spring washer, 28-flat washer, 29-expansion anchor bolt, 31-fixing seat, 301-base, 3011-shell, 3012-hollow tube, 3013-reinforcing plate, 302-fastener, 311-first claw, 312-second claw, 3121-first hook, 3122-second hook, 3123-spacing groove, 32-fastener cover, 321-rotating part, 322-fastening part, 3221-third hook, 3222-fourth hook, 323-reinforcing rib, 324-pressing plate, 33-fixing piece, 331-bolt, 332-expansion tube, 333-bottom expanding nut, 34-anti-loosening structure, 341-limiting hole, 342-limiting protrusion, 35-pin shaft, 36-washer, 37-limiting structure.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and are intended to be illustrative of the invention and should not be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in interactive relationship with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example one

Referring to fig. 3 to 8, fig. 3 is a schematic structural view of a leaky cable clamp according to an embodiment; FIG. 4 is a schematic structural diagram of a card socket according to an embodiment; FIG. 5 is a schematic structural diagram of a card socket according to an embodiment; FIG. 6 is a schematic diagram of a card cover according to an embodiment; FIG. 7 is a schematic structural diagram of a base according to an embodiment; FIG. 8 is a schematic structural diagram of a base according to an embodiment; .

As shown in the drawings, the leaky cable clamp with the multiple self-locking function of the invention includes a fixing seat 31 for fixing the leaky cable and a clamping cover 32, and in this embodiment, the fixing seat 31 and the clamping cover 32 are preferably made of nylon. The fixing seat 31 includes a base 301 and a clamping seat 302, the clamping seat 302 is provided with two major semicircular arcs which are bilaterally symmetric and are respectively a first clamping jaw 311 and a second clamping jaw 312, the clamping seat 302 is installed at one end of the base 301, a limiting structure 37 which limits the relative rotation of the base 301 and the clamping seat 302 along the central axis thereof is arranged between the base 301 and the clamping seat 302, the limiting structure 37 can be zigzag projections in a circumferential array, a groove is formed between adjacent projections, the two limiting structures 37 are respectively arranged on the contact surfaces of the base 301 and the clamping seat 302, when the clamping seat 302 is installed on the base 301, the projections on the clamping seat 302 are just clamped with the grooves on the base 301, the projections on the base 301 are clamped with the grooves on the clamping seat 302, so that the engaging force between the base 301 and the clamping seat 302 can be increased, and the mutual rotation can be prevented. Of course, the limiting structure 37 may also be other structures, for example, a protrusion with other shapes, such as a polygon, is disposed on the contact surface of the card seat 302, a slot hole matching with the shape is disposed on the contact surface of the base 301, or a protrusion with other shapes is disposed on the contact surface of the base 301, a slot hole matching with the shape is disposed on the contact surface of the card seat 302, and when the card seat 302 is mounted on the base 301, the protrusion is mounted in the slot hole, which can increase the engaging force between the base 301 and the card seat 302, and prevent mutual rotation.

The card cover 32 has a rotating portion 321 and a clamping portion 322, the rotating portion 321 of the card cover 32 is rotatably connected to the first jaw 311, the rotational connection can be achieved by a pin, a bolt or other means, in this embodiment, a pin 35 is preferably adopted, the cover plate can rotate within a certain range by taking the pin 35 as an axis, and the pin 35 can be made of a metal material, or an injection-molded non-metal material.

The engaging portion 322 of the cover 32 is connected to the second latch 312 in a snap-fit manner, the connecting end of the second latch 312 has two elastic hooks, which are a first hook 3121 and a second hook 3122, the hook tips of the first hook 3121 and the second hook 3122 form a hook cavity, the axial direction of the hook cavity is the same as the axial direction of the accommodating cavity, of course, the axial direction of the hook cavity may also be perpendicular to the axial direction of the accommodating cavity, and in this embodiment, it is preferable that the axial direction of the hook cavity is the same as the axial direction of the accommodating cavity. A gap is arranged between the hook tip of the first hook 3121 and the hook tip of the second hook 3122, the gap is communicated with the hook cavity, and the gap is equal to or smaller than the thickness of the cover plate.

The engaging portion 322 of the locking cover 32 has a third hook 3221 and a fourth hook 3222 respectively cooperating with the first hook 3121 and the second hook 3122 to form a hook, and in the present embodiment, the engaging portion 322 of the locking cover 32 is preferably arrow-shaped, as shown in fig. 6, an angle between a hook inclined plane and a vertical plane of the hook is controlled within a range of 60 ± 20 degrees, and the hook inclined plane is not limited to a smooth plane, but may also be a serrated plane, so as to increase a tensile strength of hook engagement. An anti-loosening structure 34 is arranged between the clamping portion 322 of the clamping cover 32 and the second jaw 312, the anti-loosening structure 34 includes a limiting hole 341 and a limiting protrusion 342, the limiting hole 341 can be opened on the hooking surface of the second hook 3122, and the limiting protrusion 342 is located on the hooking surface of the fourth hook 3222; the position-limiting hole 341 may also be opened on the hooking surface of the fourth hooking 3222, the position-limiting protrusion 342 is located on the hooking surface of the second hooking 3122, and the size of the position-limiting hole 341 is larger than that of the position-limiting protrusion 342, so as to ensure that the position-limiting protrusion 342 can be smoothly inserted into the position-limiting hole 341.

When the engaging portion 322 of the card cover 32 is inserted into the hook cavity through the gap, the third hook 3221 and the fourth hook 3222 firstly push the first hook 3121 and the fourth hook 3222 open, and when the third hook 3221 and the fourth hook 3222 completely enter the hook cavity, at the moment of releasing the card cover 32, the card cover 32 has resilience, and at this moment, the limiting protrusion 342 will be inserted into the limiting hole 341, so as to lock the card cover 32 and the card seat 302.

A rib 323 is provided on an inner wall of the card cover 32, a longitudinal direction of the rib 323 coincides with a longitudinal direction of the card cover 32, and the rib 323 extends from a hook surface of the third hook 3221 to the rotation portion 321 of the card cover 32; a limit groove 3123 is formed at the hook tip of the first hook 3121, and when the engaging portion 322 of the hook cover 32 is engaged with the hook cavity, the reinforcing rib 323 is located in the limit groove 3123.

The first clamping claws 311, the second clamping claws 312 and the clamping cover 32 form an accommodating cavity for the leakage cable to pass through, at least two elastic pressing plates 324 are arranged on the inner wall of the clamping cover 32 at intervals, preferably two elastic pressing plates are arranged in the embodiment, when the leakage cable passes through the accommodating cavity, the inner wall of each pressing plate 324 is attached to the outer surface of the leakage cable, so that the friction force is increased, and the surface of each pressing plate 324, which is in contact with the surface of the leakage cable, can be a smooth surface or a serrated surface.

The fixing seat 31 is fixed on the installation surface through a fixing member 33, in this embodiment, preferably, the fixing member 33 includes a bolt 331, an expansion tube 332 and a bottom-expanding nut 333, the expansion tube 332 is located on one side of the fixing seat 31 far away from the accommodating cavity, and the bolt 331 sequentially penetrates through the fixing seat 31, the expansion tube 332 and the bottom-expanding nut 333. The bottom thread of the bolt 331 can be deformed by punching after the bottom-expanding rotary nut is installed, so that loosening of the rotary nut in the transportation and vibration processes is avoided.

The base 301 is in a hollow frustum shape with an opening at one end, the end with the larger diameter is an opening end, the base 301 comprises a shell 3011 and a hollow tube 3012, the hollow tube 3012 is located in the inner cavity of the shell 3011, the central axis of the hollow tube 3012 is consistent with the central axis of the base 301, the bolt 331 penetrates through the hollow tube 3012, and a gasket 36 is arranged between the expansion tube 332 and the hollow tube 3012;

a plurality of reinforcing plates 3013 which are distributed at equal angles along the central axis of the hollow tube 3012 are arranged between the outer wall of the hollow tube 3012 and the inner wall of the shell 3011, and are used for increasing the strength of the conical base 301. The length of the hollow tube 3012 is slightly less than that of the reinforcing plate 3013, so that the end of the hollow tube 3012 forms a circular recess in which the washer 36 is installed.

Of course, the base 301 may have other shapes such as solid or internal honeycomb.

The fastening principle of the bolt 331 is as follows: all parts of the leaky cable clamp are installed, and the bolt 331 is inserted into a hole which is punched in advance on the tunnel wall, wherein the diameter of the punched hole is the same as that of the bottom-expanding nut 333, in the embodiment, an M6 bolt is preferably taken as an example, the outer diameter of the bottom-expanding rotating nut is 8mm, and the diameter of the punched hole is 8 mm. The open end of the base 301 is attached to the tunnel wall, and then the bolt 331 is rotated clockwise, at this time, the bottom-expanding rotating nut moves outward, and the bottom of the expansion pipe 332 expands while moving, so that the anchoring effect is achieved.

Example two

The fixing base 31 in the first embodiment may not be a separate structure, but may also be an integral injection molding structure, as shown in fig. 9.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Rather, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A leaky cable clamp with multiple self-locking functions is characterized by comprising a fixed seat (31) and a clamping cover (32), wherein the fixed seat (31) is used for fixing a leaky cable, a first clamping jaw (311) and a second clamping jaw (312) are arranged on the fixed seat (31), the clamping cover (32) is provided with a rotating part (321) and a clamping part (322),

the clamping part (322) of the clamping cover (32) is connected with the second clamping jaw (312) in a buckling mode, anti-loosening structures (34) which can be installed in a matched mode are arranged on the clamping surfaces of the clamping part (322) and the second clamping jaw (312) respectively, each anti-loosening structure (34) comprises a limiting hole (341) and a limiting protrusion (342), and when the clamping part (322) is connected with the second clamping jaw (312) in a buckling mode, the limiting protrusions (342) are located in the limiting holes (341);

a rotating part (321) of the clamping cover (32) is rotatably connected with the first clamping jaw (311), and the first clamping jaw (311), the second clamping jaw (312) and the clamping cover (32) form an accommodating cavity for the leakage cable to pass through.

2. The leaky cable clamp with multiple self-locking functions as claimed in claim 1, wherein the connecting end of the second jaw (312) has two elastic hooks, a first hook (3121) and a second hook (3122),

the hook tips of the first hook (3121) and the second hook (3122) are opposite to form a hook cavity, a gap is arranged between the hook tip of the first hook (3121) and the hook tip of the second hook (3122), and the gap is communicated with the hook cavity.

3. The leaky cable clamp with the multiple self-locking functions as claimed in claim 1, wherein the axial direction of the hook cavity is consistent with the axial direction of the accommodating cavity.

4. The leaky cable clamp with multiple self-locking functions as claimed in claim 2, wherein the engaging portion (322) of the clamping cover (32) is provided with a third hook (3221) and a fourth hook (3222) which are respectively matched with the first hook (3121) and the second hook (3122) to form a hook clamp.

5. The leaky cable clamp with the multiple self-locking function as claimed in claim 2, wherein the inner wall of the clamp cover (32) is provided with a reinforcing rib (323), the length direction of the reinforcing rib (323) is consistent with the length direction of the clamp cover (32), and the reinforcing rib (323) extends from the hooking surface of the third hooking hook (3221) to the rotating part (321) of the clamp cover (32);

a limiting groove (3123) is formed at the hook tip of the first hook (3121), and when the clamping portion (322) of the clamping cover (32) is clamped in the hook cavity, the reinforcing rib (323) is positioned in the limiting groove (3123).

6. The leaky cable clamp with the multiple self-locking function according to claim 4, wherein the limiting hole (341) is formed in the hooking surface of the second hooking hook (3122), and the limiting protrusion (342) is formed in the hooking surface of the fourth hooking hook (3222); or

The limiting hole (341) is arranged on the hooking surface of the fourth hooking (3222), and the limiting protrusion (342) is positioned on the hooking surface of the second hooking (3122).

7. The leaky cable clamp with the multiple self-locking function as claimed in claim 1, wherein the fixing seat (31) is fixed on a mounting surface through a fixing member (33), the fixing member (33) comprises a bolt (331), an expansion pipe (332) and a bottom expanding nut (333), the expansion pipe (332) is located on one side of the fixing seat (33) far away from the accommodating cavity, and the bolt (331) sequentially penetrates through the fixing seat (31), the expansion pipe (332) and the bottom expanding nut (333).

8. The leaky cable clamp with the multiple self-locking function as claimed in claim 1, wherein the fixing seat (31) comprises a base (301) and a clamping seat (302), the first clamping jaw (311) and the second clamping jaw (312) are both located on the clamping seat (302), the clamping seat (302) is installed at one end of the base (301), and a limiting structure (37) for limiting the relative rotation of the base (301) and the clamping seat (302) along the central axis thereof is arranged between the base (301) and the clamping seat (302).

9. The leaky cable clamp with the multiple self-locking functions as claimed in claim 8, wherein the base (301) is in a hollow frustum shape with one end open, the end with the larger diameter is an open end,

the base (301) comprises a shell (3011) and a hollow tube (3012), the hollow tube (3012) is located in an inner cavity of the shell (3011), the central axis of the hollow tube (3012) is consistent with the central axis of the base (301), the bolt (331) penetrates through the hollow tube (3012), and a gasket (36) is arranged between the expansion tube (332) and the hollow tube (3012);

a plurality of reinforcing plates (3013) which are distributed at equal angles along the central axis of the hollow tube (3012) are arranged between the outer wall of the hollow tube (3012) and the inner wall of the shell (3011).

10. The leaky cable clamp with the multiple self-locking functions as claimed in claim 1, wherein at least two elastic pressing plates (324) are arranged on the inner wall of the clamp cover (32) at intervals, and when the leaky cable passes through the accommodating cavity, the inner walls of the pressing plates (324) are attached to the outer surface of the leaky cable.