Insulation sleeve connecting device

Abstract

The invention provides an insulation sleeve connecting device, relates to the cable insulation sleeve technology, and particularly discloses an insulation main body, the outer side wall of the insulation main body is sleeved with an insulation sleeve, and one side of the insulation main body is provided with a first installation channel used for installing a cable branch. A first mounting channel for mounting a cable branch is formed in one side of the insulating main body, a second mounting channel for mounting a cable branch is formed in the other side of the insulating main body, a cable fixing area is formed after a part of the first mounting channel is communicated with a part of the second mounting channel, a fixing structure for fixing a cable in the cable fixing area is arranged between the insulating sleeve and the insulating main body, and a pressing structure is arranged on the insulating sleeve; the outer side wall of the insulation sleeve is sleeved with the binding sleeve, the binding sleeve is internally provided with the hoop structure used for annularly binding the splicing position of the insulation sleeve and the cable, the fixing function of the conductor and the sealing binding function of the interface are integrated together, the binding sleeve and the hoop structure can effectively wrap and press the joint, and the waterproof and dustproof performance and the mechanical protection capability of the device are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable insulation sleeve, in particular to an insulation sleeve connecting device. BACKGROUND

[0002] The electric connector is a device widely used in circuit connection, especially with the development of modular circuit, the advantages of convenient and fast of electric connector are more fully embodied, the existing connector includes a shell, an insulation pressing plate is arranged in the shell, a straight sleeve is pressed on the rear side of the insulation pressing plate, a tail accessory is connected on the rear side of the straight sleeve, and the tail accessory generally includes an insulation sleeve, a wire pressing rubber ring, a locking nut and the like, wherein the front end of the insulation sleeve is in contact with the rear end of the straight sleeve by the pushing of the locking nut, so as to ensure the assembly stability, and the insulation sleeve is sequentially provided with a plurality of umbrella skirts from top to bottom by the outside, the outer diameter of the umbrella skirt is sequentially reduced from top to bottom, and the self-adaptive contraction is realized.

[0003] In the prior art, when the cable is assembled with the connector, the shielding layer of the cable needs to be conducted with the shell of the connector to prevent the control signal inside the cable from being interfered. Generally, the operator pulls the supporting roll to gradually reduce the inner diameter of the insulation sleeve to form a cladding layer on the cable, and this structure tests the experience of the operator, so that when the cable is sealed by this structure, if the insulation sleeve is shrunk in the process, the previously installed parts are prone to misalignment, the fixed connection between the cable and the cable or the shielding layer after installation cannot wrap the connection part of the cable, and the connection part of the cable is prone to have a gap, so that the sealing performance of the connection part is poor. SUMMARY

[0004] The present application aims to provide an insulation sleeve connecting device, which can solve the problems in the background art.

[0005] The technical scheme of the present application is realized as follows: The application provides an insulation sleeve connecting device, which comprises an insulation main body, an insulation sleeve arranged on the outer side wall of the insulation main body, a first installation channel for installing a cable branch arranged on one side of the insulation main body, a second installation channel for installing a cable branch arranged on the other side of the insulation main body, a cable fixing area formed by the communication of the partial first installation channel and the partial second installation channel, a fixing structure arranged between the insulation sleeve and the insulation main body and used for fixing the cable in the cable fixing area, and a pressing structure arranged on the insulation sleeve and used for driving the fixing structure to exert clamping force on the cable; a binding sleeve is arranged on the outer side wall of the insulation sleeve and used for wrapping the joint of the insulation sleeve and the cable; a hoop structure is arranged in the binding sleeve and used for circumferentially binding the joint of the insulation sleeve and the cable; when the pressing structure moves along the axis of the insulation sleeve and approaches the binding sleeve on the same side of the insulation sleeve, the fixing structure is driven by the pressing structure to start exerting clamping force on the cable; and the pressing structure exerts a pushing force on the hoop structure, so that the hoop structure circumferentially binds the joint of the insulation sleeve and the cable.

[0006] In some technical solutions of the application, the fixing structure comprises a fixing plate installed in the cable fixing area, a guide rod arranged on the side wall opposite to the insulation sleeve of the fixing plate, and a first inclined surface arranged on the extended end of the guide rod.

[0007] In some technical solutions of the application, the pressing structure comprises a fixing sleeve arranged on the outer wall of the insulation sleeve, an adjusting sleeve arranged between the side wall opposite to the binding sleeve of the fixing sleeve, a first inclined surface arranged on the inner wall of the adjusting sleeve, a mounting seat arranged on the first inclined surface, a ball arranged in the mounting seat and partially embedded in the guide groove.

[0008] In some technical solutions of the application, the hoop structure comprises a mounting ring arranged in the inner side of the binding sleeve, a flexible first sealing sleeve arranged on the side wall opposite to the fixing sleeve of the mounting ring, and a limiting space in the annular shape between the first sealing sleeve and the inner wall of the binding sleeve; the inner diameter of the first sealing sleeve on the side close to the fixing sleeve gradually decreases toward the side of the mounting ring, a first pushing ring is arranged on the free end of the adjusting sleeve, the inner diameter of the first pushing ring on the side close to the adjusting sleeve gradually decreases toward the side of the binding sleeve, the first pushing ring is partially embedded in the limiting space, and the inner wall of the first pushing ring abuts against the outer wall of the first sealing sleeve.

[0009] In some technical schemes of the present application, the second sealing sleeve is arranged on the side of the mounting ring away from the first sealing sleeve, and the second sealing sleeve and the inner wall of the binding sleeve have an annular limiting space therebetween; the inner diameter of the second sealing sleeve near the side of the mounting ring gradually increases away from the side of the mounting ring; a second pushing ring is arranged in the limiting space; a plurality of mounting holes are arranged on the side wall of the mounting ring; a jack is arranged in the mounting hole; a limiting spring connected with the mounting ring is arranged on the jack; and the jack is connected with the side wall of the second pushing ring.

[0010] In some technical schemes of the present application, an inner thread is arranged on the inner side wall of the fixing sleeve, and an outer thread engaged with the inner thread is arranged on the outer side wall of the insulating sleeve.

[0011] In some technical schemes of the present application, the inner diameter of the second pushing ring near the side of the mounting ring gradually increases away from the side of the mounting ring.

[0012] In some technical schemes of the present application, the second sealing sleeve and the inner wall of the first sealing sleeve are both provided with concave-convex marks.

[0013] In some technical schemes of the present application, the outer side wall of the first pushing ring is provided with a sealing layer.

[0014] In some technical schemes of the present application, a sunken groove is arranged on the bottom wall of the cable fixing area, a top plate is arranged in the sunken groove, a spring sheet is arranged on the side wall opposite to the sunken groove of the top plate, and one end of the spring sheet is fixed in the sunken groove.

[0015] Compared with the prior art, the application has at least the following advantages or beneficial effects: the vertical section of the first installation channel on the insulating body and the vertical section of the second installation channel are in parallel communication to form a cable fixing area for accommodating the cable in the radial direction of the insulating body, the fixing structure fixes the cable in the cable fixing area, the compression structure provided on the insulating sleeve is used to drive the fixing structure to exert clamping force on the cable, and the tightness of the cable after fastening is ensured. A binding sleeve is further provided on the outer side wall of the insulating sleeve, which is used to wrap the joint between the insulating sleeve and the cable and seal the joint between the insulating sleeve and the cable to prevent rainwater from entering the joint to cause short circuit of the cable; the binding sleeve is provided with a hoop structure for circumferentially binding the joint between the insulating sleeve and the cable; when the compression structure is close to the binding sleeve on the same side of the insulating sleeve along the axis of the insulating sleeve, the fixing structure is driven by the compression structure to exert clamping force on the cable; and the compression structure exerts a pushing force on the hoop structure to make the hoop structure circumferentially bind the joint between the insulating sleeve and the cable, so as to realize ring sealing of the joint between the insulating sleeve and the cable. The above structure can simultaneously complete fastening of the cable conductor and sealing and binding of the interface through one operation (such as rotating the fixing sleeve), which simplifies the installation process and improves the operation efficiency and convenience. The functions of fixing (rigid clamping) of the conductor and sealing and binding (flexible hoop tightening) of the interface are integrated, so that the binding sleeve and the hoop structure can effectively wrap and compress the joint, and the waterproof, dustproof performance and mechanical protection capability of the device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the insulating sleeve connecting device in the application.

[0017] Figure 2 It is an exploded view of the insulating sleeve connecting device in the application.

[0018] Figure 3 It is a perspective view of the insulating body in the application.

[0019] Figure 4 It is a partial sectional perspective view of the insulating sleeve connecting device in the application.

[0020] Figure 5 It is a sectional view of the insulating sleeve connecting device in the application.

[0021] Figure 6 It is Figure 5 a partial enlarged view of position A in the application.

[0022] Figure 7 It is Figure 5 a partial enlarged view of position B in the application.

[0023] Figure 8 It is Figure 6 a partial enlarged view of position C in the application.

[0024] Reference numerals: 1. Insulating body; 101. First mounting channel; 102. Second mounting channel; 103. Cable fixing area; 104. Recessed groove; 105. Top plate; 106. Spring plate; 2. Insulating sleeve; 3. Fixing structure; 301. Fixing plate; 302. Guide rod; 303. Mounting base; 304. Sphere; 4. Pressing structure; 401. Adjusting sleeve; 402. Guide groove; 403. First pushing ring; 404. Fixing sleeve; 5. Binding sleeve; 501. Clamping structure; 502. Mounting ring; 503. First sealing sleeve; 504. Limiting space; 505. Second sealing sleeve; 506. Second pushing ring; 507. Mounting hole; 508. Top rod; 509. Limiting spring; 510. Airbag structure; 6. Cable. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] Example This invention provides a connecting device for an insulating sleeve 2, such as... Figures 1-7As shown, the device includes an insulating body 1, which is a ceramic structure. An insulating sleeve 2, made of hard rubber, is fitted onto the outer wall of the insulating body 1. The insulating sleeve 2 has an internal shielding layer, and its inner diameter is larger than the outer diameter of the insulating body 1. A first mounting channel 101 for installing cable branches 6 is provided on one side of the insulating body 1. The first mounting channel 101 is axially aligned with the insulating body 1 and is divided into three sections: two straight sections and one curved section. The two straight sections are located on either side of the curved section, increasing the friction between the cable and the insulating body 1 when the cable entering the first mounting channel 101 is pulled. A second mounting channel 102 for installing cable branches 6 is provided on the other side of the insulating body 1. The second mounting channel 102 is axially aligned with the insulating body 1, and the first mounting channel 102 is also divided into three sections: two straight sections and one curved section. The two straight sections are located on either side of the curved section. The vertical section of the first installation channel 101 and the vertical section of the second installation channel 102 are connected side by side to form a cable fixing area 103. A fixing structure 3 is provided between the insulating sleeve 2 and the insulating body 1 to fix the cable within the cable fixing area 103. The insulating sleeve 2 is provided with a pressing structure 4 that drives the fixing structure 3 to apply clamping force to the cable. A binding sleeve 5 is provided on the outer wall of the insulating sleeve 2. The binding sleeve 5 is used to wrap the joint between the insulating sleeve 2 and the cable 6 and to seal the joint between the two to prevent rainwater and dirt from entering and causing a short circuit in the cable 6. A clamping structure 501 is provided inside the binding sleeve 5 to circumferentially bind the joint between the insulating sleeve 2 and the cable 6. When the pressing structure 4 moves along the axis of the insulating sleeve 2 toward the binding sleeve 5 located on the same side, the fixing structure 3 is activated to apply clamping force to the cable under the action of the pressing structure 4. The pressing structure 4 also applies a pushing force to the clamping structure 501, so that the clamping structure 501 circumferentially binds the joint between the insulating sleeve 2 and the cable 6, thereby achieving a ring seal at the joint between the insulating sleeve 2 and the cable 6.

[0028] Actual installation process: In use, one cable branch 6 and the other cable branch 6 are first inserted into the first mounting channel 101 and the second mounting channel 102 of the insulation body 1, respectively, so that the cables meet in the cable fixing area 103. The two vertical sections of the first mounting channel 101 and the second mounting channel 102 are parallel, forming the cable fixing area 103 in the radial direction of the insulation body 1. This area is used to constrain the overlapping part of the two cables within the cable fixing area 103. Subsequently, the pressing structure 4 (e.g., tightening the fixing sleeve 404) is operated to move it along the axial direction of the insulation sleeve 2, close to the binding sleeve 5. This movement drives the fixing structure 3 (e.g., fixing plate 301) to apply a radial clamping force to the cable 6 in the cable fixing area 103, thereby achieving fixation. On the other hand, the pressing structure 4 simultaneously applies an axial thrust to the clamping structure 501 in the binding sleeve 5, forcing the clamping structure 501 to radially contract, thereby circumferentially tightening the joint between the insulation sleeve 2 and the outer sheath of the cable 6. The cable conductor can be secured and the interface sealed simultaneously with a single operation (such as rotating the fixing sleeve 404), simplifying the installation process and improving operational efficiency and convenience. Integrating conductor securing (rigid clamping) with interface sealing (flexible clamping) functions allows the clamping sleeve 5 and the clamp structure 501 to effectively wrap and tighten the joint, enhancing the device's waterproof, dustproof, and mechanical protection capabilities.

[0029] In some technical solutions of the present invention, the pressing structure 4 includes a fixed sleeve 404 sleeved on the outer wall of the insulating sleeve 2. An adjusting sleeve 401 is provided between the fixed sleeve 404 and the opposite side wall of the binding sleeve 5. The inner diameter of the adjusting sleeve 401 on the side near the fixed sleeve 404 gradually decreases towards the binding sleeve 5, forming a trumpet shape. A spiral guide groove 402 is formed on the inner wall of the adjusting sleeve 401 along the axial direction of the insulating sleeve 2. A first inclined surface is formed on the extension end of the guide rod 302. A mounting seat 303 is installed on the first inclined surface. A ball 304 is rotatably disposed in the mounting seat 303. Part of the ball 304 is embedded in the guide groove 402. When the internal thread on the inner side of the rotating fixed sleeve 404 engages with the external thread on the insulating sleeve 2, the fixed sleeve 404 will drive the adjusting sleeve 401 to move together along the axis toward the binding sleeve 5. During the movement, the trumpet-shaped inner wall of the adjusting sleeve 401 and the guide groove 402 thereon compress the ball 304 embedded therein and prevent the ball 304 from retracting. The ball 304 then presses against the first inclined surface on the guide rod 302, thereby driving the fixed plate 301 within the fixed structure 3 to move. The linear motion is then transmitted to the inclined surface mechanism through the special profile (flared mouth and guide groove 402) of the adjusting sleeve 401, ensuring the smoothness and accuracy of force transmission, preventing backlash, and achieving self-locking.

[0030] In some technical solutions of the present invention, the clamp structure 501 includes an installation ring 502 installed inside the restraint sleeve 5. A flexible first sealing sleeve 503 is installed on the side wall opposite to the fixed sleeve 404 of the installation ring 502. An annular limiting space 504 is formed between the first sealing sleeve 503 and the inner wall of the restraint sleeve 5. The inner radial direction of the first sealing sleeve 503 near the fixed sleeve 404 gradually decreases on the side of the installation ring 502. A first pushing ring 403 is installed on the free end of the adjusting sleeve 401. The inner radial direction of the first pushing ring 403 near the adjusting sleeve 401 gradually decreases on the side of the restraint sleeve 5. A portion of the first pushing ring 403 is embedded in the limiting space 504. The inner wall of the first pushing ring 403 abuts against the outer wall of the first sealing sleeve 503. By utilizing the mutual compression of two relatively moving conical surfaces (the inner conical surface of the first pushing ring 403 and the outer conical surface of the first sealing sleeve 503), the axial thrust is converted into a radial contraction force, achieving a sealing and binding function. When the adjusting sleeve 401 moves axially, the first pushing ring 403 at its end moves along with it. The first pushing ring 403, with its variable inner diameter inclined surface, squeezes into the limiting space 504 of the binding sleeve 5 and compresses the outer inclined surface of the first sealing sleeve 503. Since the first sealing sleeve 503 is flexible, it undergoes elastic deformation after being radially compressed, contracting inward, thereby circumferentially gripping the insulation sheath of the cable 6.

[0031] Preferably, the ends of the first sealing sleeve 503 and the second sealing sleeve 505 are provided with annular airbag structures 510 to increase the sealing capability of the structure.

[0032] In some technical solutions of the present invention, the fixing structure 3 includes a fixing plate 301 installed in the cable fixing area 103. The fixing plate 301 is elongated and is also made of insulating ceramic. A guide rod 302 integrally formed on the side wall of the fixing plate 301 opposite to the insulating sleeve 2 is provided therewith. The guide rod 302 is a metal rod embedded in the fixing plate 301. One end of the guide rod 302 extends outward after penetrating the insulating sleeve 2, and a first inclined surface is formed on the extended end of the guide rod 302. When the pressing structure 4 drives the adjusting sleeve 401 to move axially, the guide groove 402 on the inner wall of the adjusting sleeve 401, through cooperation with the ball 304, squeezes the first inclined surface on the guide rod 302 and generates a force on the first inclined surface, which drives the guide rod 302 to move the fixing plate 301 in the radial direction of the cable, thereby clamping the cable. This structure utilizes the inclined plane mechanism formed by the first inclined plane and the sphere 304 to convert the axial motion generated by the pressing structure 4 into the radial linear motion of the fixed structure 3, thereby clamping the cable and ensuring a reliable connection after the two cables 6 are spliced.

[0033] In some technical solutions of the present invention, a second sealing sleeve 505 is provided on the side of the mounting ring 502 away from the first sealing sleeve 503. An annular limiting space 504 is formed between the second sealing sleeve 505 and the inner wall of the restraining sleeve 5. The inner diameter of the second sealing sleeve 505 gradually increases from the side near the mounting ring 502 towards the side away from the mounting ring 502. A second pushing ring 506 is installed within the limiting space 504. A plurality of mounting holes 507 are provided on the side wall of the mounting ring 502. A push rod 508 passes through the mounting holes 507. A limiting spring 509 connected to the mounting ring 502 is sleeved on the push rod 508. The push rod 508 is connected to the side wall of the second pushing ring 506. A second-stage sealing mechanism is added based on the single-stage seal formed by the first sealing sleeve 503. The thrust is transmitted through the push rod 508, and radial sealing is achieved using the same conical surface mating principle. After the first push ring 403 pushes the first sealing sleeve 503 to complete the initial seal, the advancing adjusting sleeve 401 pushes the mounting ring 502 through the first push ring 403. The second push ring 506 uses its inner conical surface to press against the outer inclined surface of the second sealing sleeve 505, forcing the second sealing sleeve 505 to undergo radial deformation, thus achieving a second sealing and binding of the outer wall of the cable 6. The limiting spring 509 gives the second-stage seal a certain degree of self-adjustment capability. The use of double sealing enhances the waterproof, moisture-proof, and anti-loosening performance of this device, resulting in higher reliability.

[0034] In some technical solutions of this invention, the inner wall of the fixing sleeve 404 is provided with an internal thread, and the outer wall of the insulating sleeve 2 is provided with an external thread that engages with the internal thread. By rotating the fixing sleeve 404, the engagement of its internal thread with the external thread of the insulating sleeve 2 drives the entire pressing structure 4 to move precisely along the axis. The threaded connection provides a stable and precisely controllable linear feed method. This gives the structure a self-locking characteristic, enabling it to maintain clamping force and sealing, and preventing it from loosening in the opposite direction due to vibration or other reasons.

[0035] In some technical solutions of this invention, the inner diameter of the second push ring 506 gradually increases from the side closest to the mounting ring 502 towards the side furthest from the mounting ring 502. The cone angle is optimized to ensure that the second push ring 506 can efficiently convert axial force into radial compressive force acting on the second sealing sleeve 505. The inner cone design of the second push ring 506 matches the outer cone design of the second sealing sleeve 505, increasing the radial clamping force.

[0036] In some technical solutions of the present invention, both the inner walls of the second sealing sleeve 505 and the first sealing sleeve 503 are provided with raised and recessed scratches. When the raised and recessed scratches on the inner walls of the first sealing sleeve 503 and the second sealing sleeve 505 come into contact with the outer sheath of the cable 6, they will embed into the outer sheath of the cable 6, increasing the contact friction and engagement between the sealing sleeve and the surface of the cable 6, enhancing the anti-slip, anti-torsion, and anti-pull-out capabilities between the sealing sleeve and the cable 6, and improving the stability of the sealing effect.

[0037] In some technical solutions of the present invention, a sealing layer is provided on the outer side wall of the first push ring 403. The sealing layer on the outer side of the first push ring 403 maintains close contact with the inner wall of its moving cavity (limiting space 504), preventing external moisture, dust and other contaminants from entering the device through the movement gap of the first push ring 403, thereby improving the overall protection level.

[0038] In some technical solutions of this invention, a recessed groove 104 is formed on the bottom wall of the cable fixing area 103, and a top plate 105 is provided inside the recessed groove 104. A spring plate 106 is provided on the side wall of the top plate 105 opposite to the recessed groove 104, and one end of the spring plate 106 is fixed inside the recessed groove 104. The preload of the spring plate 106 provides an initial, adaptive lifting force for the cable. When the cable is placed into the cable fixing area 103, the top plate 105 is pressed down, and the spring plate 106 is compressed and stores energy. The rebound force of the spring plate 106 continuously pushes the cable upward through the top plate 105, which facilitates the insertion and positioning of the cable and makes installation more convenient. In conjunction with the fixing plate 301 above, a "bottom support and top pressure" clamping mode is formed, which avoids damage that may be caused by unilateral pressure and can adapt to cables of different diameters.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An insulating sleeve connection device, characterized in that, The device includes an insulating body (1), an insulating sleeve (2) fitted on the outer wall of the insulating body (1), a plurality of first installation channels (101) arranged around one side of the insulating body (1) in a circumferential direction, and a plurality of second installation channels (102) arranged around the other side of the insulating body (1) in a circumferential direction, the first installation channels (101) and the second installation channels (102) being arranged alternately; the vertical sections of the first installation channels (101) and the vertical sections of the second installation channels (102) on the insulating body (1) are connected in parallel to form a cable fixing area (103) for accommodating the cable in the radial direction of the insulating body (1); a fixing structure (3) is provided between the insulating sleeve (2) and the insulating body (1), the fixing structure (3) fixing the cable in the cable fixing area (103), and a pressing structure (4) is provided on the insulating sleeve (2) to drive the fixing structure (3) to apply clamping force to the cable.

2. The insulating sleeve connection device according to claim 1, characterized in that, The fixing structure (3) includes a fixing plate (301) installed in the cable fixing area (103). A guide rod (302) is provided on the side wall of the fixing plate (301) opposite to the insulating sleeve (2). One end of the guide rod (302) passes through the insulating sleeve (2) and extends outward.

3. The insulating sleeve connection device according to claim 2, characterized in that, The pressing structure (4) includes a fixed sleeve (404) sleeved on the outer wall of the insulating sleeve (2), and an adjusting sleeve (401) is provided between the side walls of the fixed sleeve (404); a spiral guide groove (402) is provided on the inner wall of the adjusting sleeve (401) along the axial direction of the insulating sleeve (2); a first inclined surface is provided on the extension end of the guide rod (302), and a mounting seat (303) is installed on the first inclined surface. A ball (304) is rotatably provided in the mounting seat (303), and a portion of the ball (304) is embedded in the guide groove (402).

4. The insulating sleeve connecting device according to claim 3, characterized in that, A binding sleeve (5) is fitted on the outer wall of the insulating sleeve (2). The binding sleeve (5) is used to wrap the joint between the insulating sleeve (2) and the cable (6). The binding sleeve (5) is provided with a clamping structure (501) for circumferentially binding the joint between the insulating sleeve (2) and the cable (6). When the pressing structure (4) moves along the axis of the insulating sleeve (2) toward the binding sleeve (5) on the same side, it can simultaneously drive the fixing structure (3) to apply clamping force to the cable and apply thrust to the clamping structure (501), so that the clamping structure (501) circumferentially tightens the joint.

5. The insulating sleeve connecting device according to claim 4, characterized in that, The clamp structure (501) includes an installation ring (502) installed inside the restraint sleeve (5). A flexible first sealing sleeve (503) is installed on the side wall opposite to the fixed sleeve (404) of the installation ring (502). There is an annular limiting space (504) between the first sealing sleeve (503) and the inner wall of the restraint sleeve (5). The inner radial direction of the first sealing sleeve (503) near the fixed sleeve (404) gradually decreases. A first pushing ring (403) is installed on the free end of the adjusting sleeve (401). The inner radial direction of the first pushing ring (403) near the adjusting sleeve (401) gradually decreases. A portion of the first pushing ring (403) is embedded in the limiting space (504). The inner wall of the first pushing ring (403) abuts against the outer wall of the first sealing sleeve (503).

6. The insulating sleeve connecting device according to claim 5, characterized in that, The mounting ring (502) has a second sealing sleeve (505) on the side away from the first sealing sleeve (503). The second sealing sleeve (505) and the inner wall of the restraint sleeve (5) have an annular limiting area. The inner radial direction of the second sealing sleeve (505) near the mounting ring (502) gradually increases on the side away from the mounting ring (502). A second pushing ring (506) is installed in the limiting space (504). A plurality of mounting holes (507) are opened on the side wall of the mounting ring (502). A push rod (508) is inserted in the mounting hole (507). A limiting spring (509) connected to the mounting ring (502) is sleeved on the push rod (508). The push rod (508) is connected to the side wall of the second pushing ring (506).

7. An insulating sleeve connecting device according to claim 5, characterized in that, The inner wall of the fixed sleeve (404) is provided with an internal thread, and the outer wall of the insulating sleeve (2) is provided with an external thread that engages with the internal thread.

8. An insulating sleeve connecting device according to claim 4, characterized in that, A recessed groove (104) is provided on the bottom wall of the cable fixing area (103). A top plate (105) is provided in the recessed groove (104). A spring plate (106) is provided on the side wall of the top plate (105) opposite to the recessed groove (104). One end of the spring plate (106) is fixed in the recessed groove (104).

9. An insulating sleeve connecting device according to claim 6, characterized in that, The inner radial direction of the second push ring (506) on the side close to the mounting ring (502) gradually increases away from the mounting ring (502).

10. An insulating sleeve connecting device according to claim 5, characterized in that, A sealing layer is provided on the outer wall of the first push ring (403).

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