A cable joint device and a method of connecting the same

Abstract

The application discloses a cable joint device and a connecting method thereof, and relates to the technical field of cable connection. The device comprises a first shell, a second shell connected with the first shell, a first threaded cylinder located in the first shell, a second threaded cylinder threadedly connected with the first threaded cylinder, a fixing plate located on the second threaded cylinder, a first adjusting handle, an elastic sealing ring, a connecting ring and a connecting head. A cylinder cavity of the second threaded cylinder is used for accommodating a cable. The first adjusting handle is connected with the fixing plate and simultaneously penetrates through the second threaded cylinder and the first shell, and the first adjusting handle is threadedly connected with the first shell. The elastic sealing ring is installed on the second shell and is in contact with the first threaded cylinder. The connecting ring is installed on the second shell and forms a seal with the second shell, and the connecting head is arranged on the connecting ring. After the first adjusting handle is screwed to drive the fixing plate to compress the cable, the second threaded cylinder can be driven to rotate, the cable is moved, and the cable is tightly pressed into the elastic sealing ring to form a seal.

Description

Technical Field

[0001] The present invention relates to the technical field of cable connection, and in particular to a cable connector device and a connection method thereof. Background Art

[0002] Connectors are required when connecting cables or between cables and equipment. Existing cable connectors require complex sealing processes to achieve waterproofing. Moreover, after long-term use, the cables and connectors are prone to loosening, which greatly reduces the sealing performance. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a cable connector device and a connection method thereof that overcome the above problems or at least partially solve the above problems.

[0004] According to a first aspect of the present invention, a cable connector device is provided, comprising:

[0005] first shell;

[0006] a second housing connected to the first housing;

[0007] a first threaded barrel connected to the interior of the first housing;

[0008] a second threaded barrel, wherein the outer surface of the second threaded barrel is threadedly connected to the inner surface of the first threaded barrel, and the barrel cavity of the second threaded barrel is used to accommodate the cable;

[0009] at least one fixing plate, wherein at least one fixing plate is disposed on the inner surface of the second threaded barrel;

[0010] at least one first adjustment handle, each first adjustment handle being connected to each fixing plate, and the first adjustment handle simultaneously passing through the second threaded barrel and the first housing, wherein the first adjustment handle is threadedly connected to the first housing so as to drive the fixing plate to compress the cable by turning the first adjustment handle;

[0011] an elastic sealing ring, mounted on an inner side of an end portion of the second housing close to the first housing and in contact with the first threaded barrel;

[0012] a connecting ring, the connecting ring being mounted on an inner side of an end of the second housing away from the first housing and forming a seal with the second housing;

[0013] At least one connector, at least one of the connectors is provided at an end of the connecting ring away from the elastic sealing ring, and is used to accommodate a core of the cable;

[0014] The second threaded cylinder drives the cable to move close to the elastic sealing ring when the second threaded cylinder moves, so that the cable is pressed into the elastic sealing ring to form a seal.

[0015] Optionally, the first adjusting handle and the fixed plate are rotationally connected, and the device further comprises:

[0016] A guide rod is located on the end of the fixed plate close to the second threaded cylinder, and the guide rod is embedded in the second threaded cylinder and is in sliding connection with the second threaded cylinder.

[0017] Optionally, the cross-sectional shape of the fixed plate is arc-shaped.

[0018] Optionally, when the number of fixed plates is at least two, the at least two fixed plates are arranged in a common circle.

[0019] Optionally, an adjusting cavity is formed in the first housing, the first threaded cylinder is rotationally connected with the first housing, and the device further comprises:

[0020] A second adjusting handle is located on the outer surface of the first housing and penetrates into the first housing;

[0021] An adjusting gear is fixed to the end of the second adjusting handle located in the first housing;

[0022] A plurality of gear teeth are arranged at intervals on the end of the first threaded cylinder away from the second housing and are in meshing engagement with the adjusting gear, wherein the first housing and the second threaded cylinder are in sliding connection, and rotating the second adjusting handle drives the second threaded cylinder to move.

[0023] Optionally, an annular fillet is formed on the end of the elastic sealing ring close to the second threaded cylinder to form a guide surface for guiding the cable.

[0024] Optionally, the ends of the first housing and the second housing are respectively provided with fixed flanges, a plurality of through holes are formed in the end faces of the fixed flanges, and the first housing and the second housing are fixed by fasteners penetrating through the through holes.

[0025] Optionally, the inner side of the end of the second threaded cylinder away from the second housing is further provided with a sealing ring, and the thickness of the sealing ring gradually increases radially outward.

[0026] Optionally, an outer surface of the second threaded cylinder away from the end of the second shell is provided with a rubber cylinder, wherein the rubber cylinder is in contact with the cable, and a threaded ring is further sleeved on the second threaded cylinder, the threaded ring is in threaded connection with the second threaded cylinder, and the rubber cylinder is fixed on the second threaded cylinder.

[0027] Based on another aspect of the present application, a sealing connection method of a cable joint device is provided, which is applied to the cable joint device described above, and the method comprises:

[0028] The first end of the cable is inserted into the second threaded cylinder, and the first end is made to pass out of the second threaded cylinder;

[0029] The core of the first end is processed to expose the core from the cable;

[0030] The first adjusting handle is rotated to make the fixed plate press the cable;

[0031] The second threaded cylinder is driven to move, the cable is driven by the second threaded cylinder to move close to the elastic sealing ring, and the cable is extruded into the elastic sealing ring to form a seal.

[0032] The cable joint device provided by the present application comprises a first shell, a second shell, a first threaded cylinder, a second threaded cylinder, at least one fixed plate, at least one first adjusting handle, an elastic sealing ring, a connecting ring, and at least one connector, wherein the first shell and the second shell are connected and are both in a cylindrical structure. The first threaded cylinder is connected to the inside of the first shell, the outer surface of the second threaded cylinder is in threaded connection with the inner surface of the first threaded cylinder, and the cylinder cavity of the second threaded cylinder is used to accommodate the cable. The fixed plate is arranged on the inner surface of the second threaded cylinder. The first adjusting handle is connected with the fixed plate and simultaneously penetrates through the second threaded cylinder and the first shell. The first adjusting handle is in threaded connection with the first shell to drive the fixed plate to press the cable by rotating the first adjusting handle. The elastic sealing ring is installed on the inner side of the end of the second shell close to the first shell and is in contact with the first threaded cylinder. The connecting ring is installed on the inner side of the end of the second shell away from the first shell and forms a seal with the second shell. The at least one connector is arranged at the end of the connecting ring away from the elastic sealing ring. Therefore, after the first adjusting handle is rotated to drive the fixed plate to press the cable, the second threaded cylinder can be driven to rotate, thereby driving the cable to move close to the elastic sealing ring, and the cable is extruded into the elastic sealing ring to form a seal, and the core of the cable can extend into the connector. The present application has the advantages of avoiding cable loosening and improving the sealing performance of the device.

[0033] The above description is only a summary of the technical solutions of the present application. In order to enable a more thorough understanding of the technical means of the present application, the present application can be implemented according to the content of the specification, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0034] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Furthermore, the same reference numerals in the several figures designate the same parts.

[0035] In the drawings:

[0036] Figure 1 is a structural schematic diagram of a cable joint device provided by an embodiment of the present application;

[0037] Figure 2 is a sectional view of a cable joint device provided by an embodiment of the present application;

[0038] Figure 3 is a partial structural schematic diagram of a cable joint device provided by an embodiment of the present application.

[0039] Reference signs:

[0040] 1, first housing; 2, second housing; 3, first threaded cylinder; 4, second threaded cylinder; 5, fixed plate; 6, first adjusting handle; 7, elastic sealing ring; 8, connecting ring; 9, connecting head; 10, guide rod; 11, second adjusting handle; 12, adjusting gear; 13, annular fillet; 14, fixed flange; 15, sealing ring; 16, rubber cylinder; 1601, first flange; 17, threaded ring; 1701, second flange; 18, guide slide; 19, cable. DETAILED DESCRIPTION

[0041] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be accurately conveyed to those skilled in the art.

[0042] Referring to Figures 1-3 The embodiment of the present application provides a cable joint device, which can include a first housing 1, a second housing 2, a first threaded cylinder 3, a second threaded cylinder 4, at least one fixed plate 5, at least one first adjusting handle 6, an elastic sealing ring 7, a connecting ring 8, and at least one connecting head 9. Among them:

[0043] The first shell 1 and the second shell 2 form a connection, and the first shell 1 and the second shell 2 can be cylindrical structures, so that other components can be assembled inside the first shell 1 and the second shell 2. The first threaded cylinder 3 is connected to the inside of the first shell 1. The outer surface of the second threaded cylinder 4 is threadedly connected to the inner surface of the first threaded cylinder 3, and the cylinder cavity of the second threaded cylinder 4 is used to accommodate the cable 19. At least one of the fixing plates 5 is arranged on the inner surface of the second threaded cylinder 4. Each of the first adjusting handles 6 is connected to each of the fixing plates 5, and the first adjusting handle 6 simultaneously penetrates the second threaded cylinder 4 and the first shell 1. The first adjusting handle 6 is threadedly connected to the first shell 1, so that by rotating the first adjusting handle 6, the fixing plate 5 is driven to press the cable 19. For example, when the first adjusting handle 6 is rotated clockwise, the fixing plate 5 is driven to move close to the central axis of the cylinder cavity of the second threaded cylinder 4, so that the cable 19 entering the second threaded cylinder 4 is pressed and abuts, forming a fixation of the cable 19, so that the cable 19 does not come off the connector during connection.

[0044] The elastic sealing ring 7 is mounted on the inner side of the end of the second shell 2 close to the first shell 1 and in contact with the first threaded cylinder 3. The connecting ring 8 is mounted on the inner side of the end of the second shell 2 away from the first shell 1 and forms a seal with the second shell 2. At least one of the connecting heads 9 is arranged at the end of the connecting ring 8 away from the elastic sealing ring 7 for accommodating the core of the cable 19. When the second threaded cylinder 4 moves, the cable 19 is driven to move close to the elastic sealing ring 7, so that the cable 19 is extruded into the elastic sealing ring 7 to form a seal. The core of the cable 19 can extend into the connecting head 9, and the cable 19 can be connected between the cable 19 and the cable 19 or between the cable 19 and the device without loosening and with the advantages of sealing and the like.

[0045] When there are at least two connecting heads 9, the multiple cores inside the cable 19 can be inserted into each connecting head 9 respectively, so that when there are multiple cores inside the cable 19, they can be distinguished and there is no risk of mixed connection and short circuit.

[0046] In an embodiment, when the first threaded cylinder 3 is fixedly connected to the first shell 1, rotating the second threaded cylinder 4 enables it to rotate while moving close to the elastic sealing ring 7, so that the end of the cable 19 is extruded into the elastic sealing ring 7 inside the second shell 2 to form a seal.

[0047] In an alternative embodiment of the application, the first adjusting handle 6 can be a rotating screw. The first adjusting handle 6 and the fixing plate 5 are rotationally connected. In the embodiment of the application, the rotational connection can be achieved by installing a bearing, for example, a guide bearing is fixedly installed on the fixing plate 5, and the first adjusting handle 6 is connected with the guide bearing to achieve rotational connection. The device can further include a guide rod 10, which is located on the end of the fixing plate 5 close to the second threaded cylinder 4, and the guide rod 10 is embedded in the second threaded cylinder 4 and is in sliding connection with the second threaded cylinder 4. The guide rod 10 and the fixing plate 5 can be an integral structure, and a guide sliding hole for embedding the guide rod 10 is pre-formed on the second threaded cylinder 4. When the first adjusting handle 6 is rotated, the fixing plate 5 will not rotate with the second adjusting handle 11 due to the limiting effect of the guide rod 10, but will only move linearly towards or away from the cable 19, increasing the sliding stability of the fixing plate 5.

[0048] In an alternative embodiment of the application, as shown in Figure 3 The cross-sectional shape of the fixing plate 5 is a circular arc, and the outer surface of the cable 19 is a circular arc surface. By using a circular arc-shaped fixing plate 5, the contact area with the cable 19 can be increased, so that the outer surface of the cable 19 will not be damaged when the pressing force is increased, the fixing force of the cable 19 is improved, and the cable 19 is not easy to loosen in long-term use.

[0049] In an alternative embodiment of the application, when the number of fixing plates 5 is at least two, the at least two fixing plates 5 are arranged in a common circle, that is, the at least two fixing plates 5 are distributed at multiple points on the outer surface of the cable 19 to form clamping on the cable 19. For example, multiple fixing plates 5 can be arranged at equal angles with respect to the center of the circle to further improve the fixing force of the cable 19, so that axial movement of the cable 19 during positioning can be avoided, and the sealing performance of the cable 19 can be improved. Long-term use can also avoid loosening.

[0050] In an alternative embodiment of the application, as shown in Figure 2 The first threaded cylinder 3 is rotationally connected with the first housing 1, and the device can further include a second adjusting handle 11, an adjusting gear 12, and a plurality of teeth. Wherein:

[0051] The second adjusting handle 11 is located on the outer surface of the first shell 1 and penetrates into the first shell 1. The adjusting gear 12 is fixed on the end of the second adjusting handle 11 which penetrates into the first shell 1. A plurality of the gear teeth are arranged on the end of the first threaded cylinder 3 away from the second shell 2 and are in mesh with the adjusting gear 12, wherein the first shell 1 and the second threaded cylinder 4 are in sliding connection. For example, a guide sliding strip 18 can be arranged on the inner side of the first shell 1 and a guide sliding groove in the axial direction of the second threaded cylinder 4 is formed on the second threaded cylinder 4, and the guide sliding strip 18 is embedded in the guide sliding groove to realize the axial sliding connection. When the second adjusting handle is screwed, the first threaded cylinder can be rotated, and the second threaded cylinder 4 cannot rotate due to the limiting effect of the guide sliding strip 18 in the radial direction, so that the second threaded cylinder 4 moves linearly in the axial direction when the first threaded cylinder connected with it rotates. In this case, only the second adjusting handle 11 needs to be screwed to complete the sealing operation of the cable 19, so that the second threaded cylinder 4 does not need to be screwed, which is more time-saving and labor-saving.

[0052] In an optional embodiment of the application, an annular round corner 13 is formed on the end of the second threaded cylinder 4 close to the elastic sealing ring 7 to form a guide surface for guiding the cable 19. The cable 19 can enter the elastic sealing ring 7 more quickly through the guide surface, and the efficiency of the cable 19 being forcedly squeezed into the elastic sealing ring 7 can be improved. In an embodiment, the elastic sealing ring 7 can be made of rubber material.

[0053] In an optional embodiment of the application, as shown in Figures 1-3 The end parts of the first shell 1 and the second shell 2 close to each other are respectively provided with a fixed flange 14, and a plurality of through holes are formed on the end surface of the fixed flange 14. The first shell 1 and the second shell 2 are fixed by fasteners penetrating through the through holes. The cross-sectional shape of the fixed flange 14 can be a circular ring, and the fastener can be a bolt, a nut or the like. Therefore, after the internal components of the first shell 1 and the second shell 2 are assembled, the first shell 1 and the second shell 2 can be fixed by the fasteners.

[0054] In an optional embodiment of the invention, a sealing ring 15 is further provided on the inner side of the end of the second threaded barrel 4 away from the second outer shell 2, and the thickness of the sealing ring 15 gradually increases from the radial direction of the sealing ring 15 to the outside. The sealing ring 15 can be made of an elastic material, such as rubber. The thickness of the part of the sealing ring 15 that contacts the cable 19 is the thinnest, that is, the contact area between the inner side of the sealing ring 15 and the cable 19 is the smallest, thereby reducing the friction between the cable 19 and the sealing ring 15 when the cable 19 is inserted. It can use its deformation force to make the cable 19 enter the interior of the second threaded barrel 4 and can seal the end of the second threaded barrel 4 away from the second outer shell 2. In one embodiment, a flared portion with a guiding function can also be formed on both sides of the sealing ring 15 to facilitate the cable 19 to pass through the sealing ring 15.

[0055] In an optional embodiment of the invention, referring to Figure 2 As shown, a rubber tube 16 is provided on the outer surface of the end of the second threaded barrel 4 away from the second shell 2. The rubber tube 16 is in contact with the cable 19. For example, the rubber tube 16 is extended from the end of the second threaded barrel 4 in the direction away from the second shell 2 along the axial direction of the second threaded barrel 4. The cable 19 passes through the rubber tube 16 and the sealing ring 15 and then enters the barrel cavity of the second threaded barrel 4, thereby further increasing the sealing and waterproof properties of the device. This prevents water from entering the second threaded barrel 4 from the end of the second threaded barrel 4 away from the second shell 2. In one embodiment, a threaded ring 17 is further provided on the second threaded barrel 4, and the threaded ring 17 is threadedly connected to the second threaded barrel 4 and fixes the rubber tube 16 on the second threaded barrel 4. The rubber tube 16 is provided with a first flange 1601 extending along the radial direction of the second threaded barrel 4, and the first flange 1601 extends from the inside to the outside of the radial direction of the second threaded barrel 4. The threaded ring 17 is provided with a second flange 1701 extending radially along the second threaded barrel 4 , and the second flange extends radially from the outside to the inside of the second threaded barrel 4 . Furthermore, the first flange 1601 overlaps the second flange 1701 .

[0056] During the connection process, the threaded ring 17 and the rubber tube 16 are both placed on the cable 19. After the connection of the cable 19 is completed, the first flange 1601 is fitted to the end face of the second threaded tube 4. The threaded ring 17 is then placed on the end of the second threaded tube 4. The threaded ring 17 is screwed to bring the second flange 1701 into pressure contact with the first flange 1601. This increases the pressure contact area between the device and the cable 19, thereby further improving the sealing of the device and optimizing its waterproof performance. In addition, by providing the threaded ring 17 and the rubber tube 16, the interface of the cable 19 can also be protected, thereby reducing the probability of the cable 19 being broken at the joint during the connection process.

[0057] The cable joint device and the connecting method of the cable joint device are provided.

[0058] The first end of the cable 19 is inserted into the second threaded cylinder 4 and is led out of the second threaded cylinder 4;

[0059] The core of the first end is processed to expose the core from the cable 19;

[0060] The first adjusting handle 6 is rotated to press the cable 19 by the fixed plate 5;

[0061] The second threaded cylinder is driven to move, the cable 19 is led to move close to the elastic sealing ring 7 by the second threaded cylinder, and the cable 19 is pressed into the elastic sealing ring 7 to form a seal.

[0062] In summary, the cable joint device and the connecting method of the cable joint device are provided, the device comprises a first shell 1, a second shell 2, a first threaded cylinder 3, a second threaded cylinder 4, at least one fixed plate 5, at least one first adjusting handle 6, an elastic sealing ring 7, a connecting ring 8 and at least one connecting head 9, wherein the first shell 1 and the second shell 2 are connected and are both cylindrical structures. The first threaded cylinder 3 is connected to the inside of the first shell 1, the outer surface of the second threaded cylinder 4 is threadedly connected with the inner surface of the first threaded cylinder 3, and the cylinder cavity of the second threaded cylinder 4 is used to accommodate the cable 19. The fixed plate 5 is arranged on the inner surface of the second threaded cylinder 4. The first adjusting handle 6 is connected with the fixed plate 5 and simultaneously penetrates the second threaded cylinder 4 and the first shell 1. The first adjusting handle 6 is threadedly connected with the first shell 1 to drive the fixed plate 5 to press the cable 19 by rotating the first adjusting handle 6. The elastic sealing ring 7 is installed on the inner side of the end of the second shell 2 close to the first shell 1 and is in contact with the first threaded cylinder 3. The connecting ring 8 is installed on the inner side of the end of the second shell 2 away from the first shell 1 and forms a seal with the second shell 2. The at least one connecting head 9 is arranged at the end of the connecting ring 8 away from the elastic sealing ring 7. Therefore, after the first adjusting handle 6 is rotated to drive the fixed plate 5 to press the cable 19, the second threaded cylinder 4 can be driven to rotate, thereby leading the cable 19 to move close to the elastic sealing ring 7, and the cable 19 is pressed into the elastic sealing ring 7 to form a seal, and the core of the cable 19 can extend into the connecting head 9. The application has the advantages of avoiding loosening of the cable 19 and improving the sealing performance of the device.

[0063] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts of each embodiment can be referred to each other.

[0064] It will be readily apparent to those skilled in the art that any combination of the above-described embodiments can be made and that any combination of the above-described embodiments is within the scope of the present application, but for the sake of brevity, the present description will not describe all possible combinations of the above-described embodiments.

[0065] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been described in detail in order to not obscure the understanding of this description.

[0066] Similarly, it is to be understood that the mechanical features of the application can be interchanged with or between various embodiments, and in some instances various features of the application, both structural and otherwise, can be interchanged with or between various embodiments to form different embodiments of the application.

[0067] Moreover, it is not intended to exclude any further implementations of the present application that can be derived from the above description by a skilled person. For example, although some embodiments described herein include certain features of other embodiments but not others, those of ordinary skill in the art will readily appreciate that not all combinations of features are necessary or desirable in all implementations. In addition, it is understood that embodiments of the present application can be practiced without the these specific details. In some instances, well-known methods, structures and techniques have not been described in detail in order to not obscure the understanding of this description.

Claims

1. A cable splice device, characterized by The device comprises: a first housing (1); a second housing (2) connected with the first housing (1); a first threaded cylinder (3) connected to the inside of the first housing (1); a second threaded cylinder (4) with its outer surface threadedly connected with the inner surface of the first threaded cylinder (3), and a cylinder cavity of the second threaded cylinder (4) used for accommodating a cable (19); at least one fixing plate (5) arranged on the inner surface of the second threaded cylinder (4); at least one first adjusting handle (6) connected with each of the fixing plates (5), and the first adjusting handle (6) penetrating through the second threaded cylinder (4) and the first housing (1) at the same time, wherein the first adjusting handle (6) is threadedly connected with the first housing (1) to drive the fixing plate (5) to compress the cable (19) by screwing the first adjusting handle (6); an elastic sealing ring (7) mounted on the inner side of the end of the second housing (2) close to the first housing (1) and in contact with the first threaded cylinder (3); a connecting ring (8) mounted on the inner side of the end of the second housing (2) away from the first housing (1) and forming a seal with the second housing (2); at least one connector (9) arranged on the end of the connecting ring (8) away from the elastic sealing ring (7) for accommodating the core of the cable (19); When the second threaded cylinder (4) moves, the cable (19) moves close to the elastic sealing ring (7) to be compressed into the elastic sealing ring (7) to form a seal.

2. The cable splice device of claim 1, wherein, The first adjusting handle (6) and the fixing plate (5) are rotationally connected, and the device further comprises: a guide rod (10) located on the end of the fixing plate (5) close to the second threaded cylinder (4) and embedded in the second threaded cylinder (4) and slidably connected with the second threaded cylinder (4).

3. The cable splice device of claim 2, wherein, The cross-sectional shape of the fixing plate (5) is arc-shaped.

4. The cable splice device of claim 3, wherein, When the number of the fixing plates (5) is at least two, the at least two fixing plates (5) are arranged in a common circle.

5. The cable splice device of claim 1, wherein, The first threaded cylinder (3) is rotationally connected with the first housing (1), and the device further comprises: a second adjusting handle (11) located on the outer surface of the first housing (1) and penetrating into the first housing (1); an adjusting gear (12) fixed on the end of the second adjusting handle (11) located in the first housing (1); A plurality of gear teeth are arranged at intervals on the end of the first threaded cylinder (3) away from the second shell (2) and are in meshing engagement with the adjusting gear (12), wherein the first shell (1) and the second threaded cylinder (4) are in sliding connection, and screwing the second adjusting handle (11) drives the second threaded cylinder (4) to move.

6. The cable splice device of claim 1, wherein, An annular fillet (13) is formed on the end of the second threaded cylinder (4) close to the elastic sealing ring (7) to form a guide surface for guiding the cable (19).

7. The cable splice device of claim 1, wherein, The ends of the first shell (1) and the second shell (2) close to each other are respectively provided with fixed flanges (14), the end faces of the fixed flanges (14) are provided with a plurality of through holes, and the first shell (1) and the second shell (2) are fixed by fasteners passing through the through holes.

8. The cable splice device of claim 1, wherein, The inner side of the end of the second threaded cylinder (4) away from the second shell (2) is further provided with a sealing ring (15), the thickness of the sealing ring (15) gradually increases radially outward.

9. The cable splice device of claim 1, wherein, The outer surface of the end of the second threaded cylinder (4) away from the second shell (2) is provided with a rubber cylinder (16), wherein the rubber cylinder (16) is in contact with the cable (19), a threaded ring (17) is further sleeved on the second threaded cylinder (4), the threaded ring (17) is in threaded connection with the second threaded cylinder (4) and fixes the rubber cylinder (16) on the second threaded cylinder (4).

10. A method of connecting a cable joint device according to any one of claims 1 to 9, characterized by, The method comprises: threading the first end of the cable (19) into the second threaded cylinder (4) and making the first end pass out of the second threaded cylinder (4); processing the core of the first end to make the core exposed from the cable (19); rotating the first adjusting handle (6) to make the fixed plate (5) compress the cable (19); driving the second threaded cylinder to move, driving the cable (19) to move close to the elastic sealing ring (7) by the second threaded cylinder to make the cable (19) be compressed into the elastic sealing ring (7) to form sealing.

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