A heat dissipating joint device for fireproof cable

Abstract

The present invention relates to the technical field of fireproof cables, and specifically discloses a heat-dissipating joint device for fireproof cables, including a joint sleeve, wherein both ends of the joint sleeve are symmetrically fixedly connected with a socket, wherein the socket is connected to the end of the fireproof cable, and the inner end of the socket is fixedly connected with a copper core, wherein two sockets are fixedly connected through the copper core, and further comprising: a heat dissipation component, wherein the heat dissipation component is fixedly mounted on the joint sleeve; and a protective component, wherein the protective component is fixedly mounted on the outer surface of the joint sleeve. The heat-dissipating joint device for fireproof cables can enable the joint sleeve to automatically cool down by utilizing pressure changes during operation by providing a heat dissipation component, thereby solving the problem that the joint sleeve is easily kept in a high temperature state for a long time during operation due to slow air circulation inside the mine, thereby solving the problem of potential safety hazards. Furthermore, the cooling efficiency is greatly improved by dividing the inside of the joint sleeve into two cavities for circulation cooling.

Description

Technical Field

[0001] The invention relates to the technical field of fireproof cables, in particular to a heat dissipating joint device of a fireproof cable. Background Art

[0002] In the application scenario of fireproof cables, the connector device is a key component to ensure the stability and functionality of cable connections. It is mainly used to achieve reliable connection between two or more fireproof cables, ensure stable current transmission, and maintain the fireproof performance of the cable. Since heat is easily accumulated in the joint during current transmission and may face a complex external environment, the connector device needs to have good heat dissipation capacity and protection performance to ensure the safe and stable operation of the cable system. It is widely used in mines, construction, electricity and other fields with strict requirements on fire safety.

[0003] Traditional fireproof cable joint devices have many drawbacks. In terms of heat dissipation, most devices use passive and inefficient heat dissipation methods, which are difficult to cope with harsh environments such as mines with slow air circulation, causing the joint casing to be in a high temperature state for a long time, accelerating the aging of the cable insulation layer, increasing the risk of short circuits, and seriously threatening the safety of the power system. In terms of protection performance, it is impossible to effectively filter impurities and moisture in the outside air. The high-humidity and impure air in the mine can easily enter the inside of the joint, causing copper core corrosion and short circuits, reducing the service life and reliability of the cable. In addition, the existing device lacks an automatic cleaning and sealing mechanism. After long-term use, the filter components are easily clogged due to the adsorption of impurities and moisture, affecting the heat dissipation effect, and in the non-working state, the joint cannot be automatically sealed, further exacerbating the risk of damage to the joint. It is difficult to meet the needs of modern industry for efficient heat dissipation and reliable protection of fireproof cable joint devices. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The present invention provides a heat dissipating connector device for a fireproof cable, which solves the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a heat dissipating joint device for a fireproof cable, comprising a joint sleeve, both ends of the joint sleeve are symmetrically fixedly connected with a socket, wherein the socket is connected to the end of the fireproof cable, the inner end of the socket is fixedly connected with a copper core, wherein the two sockets are fixedly connected through the copper core, and further comprising:

[0008] A heat dissipation component, which is fixedly mounted on the joint sleeve, wherein the heat dissipation component slides along the surface of the copper core;

[0009] A protection component, which is fixedly mounted on the outer surface of the joint sleeve and cooperates with the heat dissipation component;

[0010] The heat dissipation component includes a driving ring, which is slidably sleeved on the outer surface of the copper core, and a driving rod is threadedly connected to the bottom of the driving ring, and the input end of the driving rod is rotatably connected to the outer surface of the joint sleeve, wherein the driving rod is driven to rotate by an electric system, and a guide rod is slidably connected to the surface of the driving ring away from the driving rod, and the two ends of the guide rod are respectively fixedly connected to the inner surfaces of both sides of the joint sleeve, and the outer surface of the driving ring is slidably connected to a fitting ring, and the two ends of the fitting ring are respectively fixedly connected to the inner surfaces of both sides of the joint sleeve.

[0011] Preferably, the diameter of the fitting ring is smaller than the diameter of the joint sleeve, and a sliding groove is provided at the bottom of the fitting ring. A sliding bar is slidably connected in the sliding groove, and the inner side of the sliding bar is fixedly connected to the outer surface of the driving ring. The outer side of the sliding bar is fixedly connected to an extrusion ring, and the extrusion ring is slidably fitted in the cavity between the fitting ring and the joint sleeve, wherein the extrusion ring and the driving ring are initially arranged in the middle of the joint sleeve.

[0012] Preferably, the inner surfaces on both sides of the joint sleeve are symmetrically fixedly connected with sponge tubes, and the sponge tubes are arranged in the cavity between the fitting ring and the joint sleeve.

[0013] Preferably, air inlet grooves are symmetrically formed through the outer surfaces of both sides of the joint sleeve, the air inlet grooves are distributed in a ring shape on the outer surfaces of the edges of both sides of the joint sleeve, and the air inlet grooves are arranged on the outside of the sponge tube.

[0014] Preferably, the protective assembly includes a cover ring, which is symmetrically fixedly connected to the outer surfaces of both sides of the joint sleeve, and the cover ring is arranged on the outside of the air inlet groove. A filling ring is fixedly connected to the side of the cover ring close to each other, and a side surface of the filling ring away from the cover ring is fixedly connected to the outer surface of the joint sleeve, and an air inlet hole is opened through the outer surface of the filling ring.

[0015] Preferably, a water outlet groove is formed through the bottom outer surface of the cover ring, and retaining rings are symmetrically fixedly connected to the outer surfaces of both sides of the joint sleeve. The retaining rings are arranged inside the cover ring and do not contact the cover ring, wherein the retaining rings are arranged outside the filling ring.

[0016] Preferably, a mounting ring is fixedly sleeved on the middle outer surface of the joint sleeve, a mounting groove is opened inside the mounting ring, an extrusion groove is connected inside the mounting groove, wherein the extrusion groove passes through the mounting ring and the joint sleeve, and six extrusion grooves are fixedly arranged around the central axis of the joint sleeve.

[0017] Preferably, the inner surface of the mounting ring is fixedly connected with an extrusion bag, which is arranged in a ring shape, the outer surface of the extrusion bag is fixedly connected with an extrusion plate, which is arranged on the outside of the extrusion groove, and the surface of the extrusion plate away from the extrusion bag is fixedly connected with a dislocation bar, which is arranged in an arc shape and elastically slidably connected in the extrusion groove.

[0018] Preferably, pressure grooves are symmetrically provided on both sides of the joint sleeve, and the pressure grooves are arranged in an annular shape, and a closed ring is elastically slidably connected in the pressure grooves, and the pressure grooves are connected to the internal cavity of the extrusion bag. When the fireproof cable needs to be connected, the connecting ends of the fireproof cable can be fixedly connected to the two ends of the joint sleeve respectively, so that the two fireproof cables are connected through the plug socket and the copper core. During normal use, the driving rod starts to rotate reciprocally through the power system. When the driving rod starts to rotate, the driving ring will be driven by the thread to slide reciprocally along the outer surface of the copper core. As the driving ring moves, the cavity volume on both sides of the joint sleeve will continue to expand and shrink. When the cavity volume increases, the cavity will be in a negative pressure state, and the external cold air will be drawn into the joint sleeve through the air inlet groove to enter the joint sleeve to cool the copper core. When the cavity volume decreases, the hot air inside the joint sleeve will be discharged to the outside through the air inlet groove, thereby realizing two-way cooling inside the joint sleeve.

[0019] (III) Beneficial effects

[0020] The present invention provides a heat dissipating joint device for a fireproof cable. It has the following beneficial effects:

[0021] (I) The heat dissipating joint device of the fireproof cable can make the joint sleeve automatically cool down by using the pressure change when working by setting the heat dissipating component, so as to solve the problem that the joint sleeve is in a high temperature state for a long time when working due to the slow air circulation inside the mine, which causes safety hazards. In addition, the cooling efficiency is greatly improved by dividing the inside of the joint sleeve into two cavities for circulation cooling.

[0022] (ii) The heat dissipation joint device of the fireproof cable, when the external cold air enters the joint sleeve, it will pass through the air inlet groove and be filtered by the sponge tube, and then enter through the sliding groove at the bottom of the fitting ring, and filter the external cold air through the sponge tube to avoid the problem of high air humidity in the mine directly entering the joint sleeve and causing damage to the copper core. As the driving ring moves, the sliding bar will also drive the extrusion ring to move, and then the movement of the extrusion ring will continuously squeeze the sponge tubes on both sides of the joint sleeve, so that the sponge tubes can be automatically cleaned during work to avoid the problem of poor heat dissipation of the joint sleeve caused by the sponge tube absorbing too much moisture after working for a long time and reducing the air circulation rate. Before passing through the air inlet groove, the external cold air will be filtered through the air inlet hole on the filling ring in advance to avoid impurities entering the air inlet groove with the air and causing blockage, thereby greatly improving the use stability of the device, and at the same time, it can also prevent impurities falling in the mine from clogging the air inlet groove.

[0023] (III) The heat dissipation joint device of the fireproof cable, when the driving ring drives the extrusion ring to move toward the middle of the joint sleeve, it will gradually approach the extrusion groove, that is, it will eventually contact with the dislocation strip in the extrusion groove and produce continuous extrusion. As the dislocation strip is squeezed, it will move outward through the extrusion groove, and then push the extrusion plate to squeeze the extrusion bag in the installation ring, so that the air pressure in the internal cavity of the extrusion bag increases, thereby transmitting its internal air pressure to the pressure groove. As the air pressure inside the pressure groove increases, it will push the closed ring to move outward, that is, finally make the closed ring close and block the air inlet groove, so as to achieve the automatic sealing of the inside of the joint sleeve by resetting the driving ring after the work is completed, to prevent water vapor from entering the inside of the joint sleeve, greatly improving the service life of the device, and at the same time can further improve the protection effect of the copper core. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the air inlet slot of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the filling ring of the present invention;

[0027] Figure 4 It is a schematic diagram of the internal structure of the mounting ring of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the pressure tank of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the driving rod of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the dislocation strip of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the slide bar of the present invention.

[0032] In the figure: 1. Connector sleeve; 2. Plug socket; 3. Copper core; 4. Heat dissipation component; 41. Drive ring; 42. Drive rod; 43. Guide rod; 44. Fitting ring; 45. Slide groove; 46. Slide bar; 47. Extrusion ring; 48. Sponge tube; 49. Air inlet groove; 5. Protection component; 51. Cover ring; 52. Filling ring; 53. Air inlet hole; 54. Water outlet groove; 55. Retaining ring; 56. Mounting ring; 57. Mounting groove; 58. Extrusion groove; 59. Extrusion bag; 510. Extrusion plate; 511. Dislocation strip; 512. Pressure groove; 513. Closing ring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a heat dissipating joint device for a fireproof cable, comprising a joint sleeve 1, both ends of the joint sleeve 1 are symmetrically fixedly connected with a socket 2, wherein the socket 2 is connected to the end of the fireproof cable, and the inner end of the socket 2 is fixedly connected with a copper core 3, wherein two sockets 2 are fixedly connected through the copper core 3, and further comprising:

[0035] The heat dissipation component 4 is fixedly mounted on the joint sleeve 1, wherein the heat dissipation component 4 slides along the surface of the copper core 3;

[0036] A protection component 5, which is fixedly mounted on the outer surface of the joint sleeve 1, and the protection component 5 cooperates with the heat dissipation component 4;

[0037] The heat dissipation component 4 includes a driving ring 41, which is slidably mounted on the outer surface of the copper core 3, and a driving rod 42 is threadedly connected to the bottom of the driving ring 41, and an input end of the driving rod 42 is rotatably connected to the outer surface of the joint sleeve 1, wherein the driving rod 42 is driven to rotate by an electric power system, and a guide rod 43 is slidably connected to the surface of the driving ring 41 away from the driving rod 42, and two ends of the guide rod 43 are respectively fixedly connected to the inner surfaces of both sides of the joint sleeve 1, and a fitting ring 44 is slidably connected to the outer surface of the driving ring 41, and two ends of the fitting ring 44 are respectively fixedly connected to the inner surfaces of both sides of the joint sleeve 1.

[0038] The diameter of the fitting ring 44 is smaller than the diameter of the joint sleeve 1. A slide groove 45 is provided at the bottom of the fitting ring 44. A slide bar 46 is slidably connected in the slide groove 45. The inner side of the slide bar 46 is fixedly connected to the outer surface of the drive ring 41. The outer side of the slide bar 46 is fixedly connected to an extrusion ring 47. The extrusion ring 47 is slidably fitted in the cavity between the fitting ring 44 and the joint sleeve 1, wherein the extrusion ring 47 and the drive ring 41 are initially arranged in the middle of the joint sleeve 1.

[0039] The inner surfaces of both sides of the joint sleeve 1 are symmetrically fixedly connected with sponge tubes 48 , and the sponge tubes 48 are arranged in the cavity between the fitting ring 44 and the joint sleeve 1 .

[0040] Air inlet grooves 49 are symmetrically formed on the outer surfaces of both sides of the joint sleeve 1 . The air inlet grooves 49 are distributed in a ring shape on the outer surfaces of the edges of both sides of the joint sleeve 1 , and the air inlet grooves 49 are arranged on the outer side of the sponge tube 48 .

[0041] Second embodiment: Figures 1 to 8 As shown, the protective component 5 includes a cover ring 51, which is symmetrically fixedly connected to the outer surfaces of both sides of the joint sleeve 1, and the cover ring 51 is arranged on the outer side of the air inlet groove 49. A filling ring 52 is fixedly connected to the side of the cover ring 51 that is close to each other, and a side surface of the filling ring 52 away from the cover ring 51 is fixedly connected to the outer surface of the joint sleeve 1, and an air inlet hole 53 is opened through the outer surface of the filling ring 52.

[0042] A water outlet groove 54 is formed through the bottom outer surface of the cover ring 51 , and retaining rings 55 are symmetrically fixedly connected to the outer surfaces of both sides of the joint sleeve 1 . The retaining rings 55 are arranged inside the cover ring 51 and do not contact the cover ring 51 , wherein the retaining rings 55 are arranged outside the filling ring 52 .

[0043] A mounting ring 56 is fixedly sleeved on the middle outer surface of the joint sleeve 1, and a mounting groove 57 is provided inside the mounting ring 56. An extrusion groove 58 is connected to the mounting groove 57, wherein the extrusion groove 58 passes through the mounting ring 56 and the joint sleeve 1, and six extrusion grooves 58 are arranged at fixed intervals around the central axis of the joint sleeve 1.

[0044] The inner surface of the mounting ring 56 is fixedly connected with an extrusion bag 59, which is arranged in a ring shape. The outer surface of the extrusion bag 59 is fixedly connected with an extrusion plate 510, which is arranged on the outside of the extrusion groove 58. The surface of the extrusion plate 510 away from the extrusion bag 59 is fixedly connected with a dislocation bar 511, which is arranged in an arc shape and elastically slidably connected in the extrusion groove 58.

[0045] Pressure grooves 512 are symmetrically provided on both sides of the joint sleeve 1 . The pressure groove 512 is arranged in a ring shape. A closed ring 513 is elastically and slidably connected in the pressure groove 512 . The pressure groove 512 is communicated with the inner cavity of the extrusion bag 59 .

[0046] During operation, when it is necessary to connect the fireproof cables, the connecting ends of the fireproof cables can be fixedly connected to the two ends of the joint sleeve 1 respectively, so that the two fireproof cables are connected through the socket 2 and the copper core 3. During normal use, the driving rod 42 starts to rotate back and forth through the power system. When the driving rod 42 starts to rotate, it will drive the driving ring 41 to slide back and forth along the outer surface of the copper core 3 through the thread. As the driving ring 41 moves, the cavity volume on both sides of the joint sleeve 1 will continue to expand and shrink. When the cavity volume increases, the cavity will be in a negative pressure state, and the external cold air will be drawn into the joint sleeve 1 through the air inlet groove 49 to enter the joint sleeve 1 to cool the copper core 3. When the cavity volume decreases, the joint will be cooled through the air inlet groove 49. The hot air inside the sleeve 1 is discharged to the outside, so that two-way cooling is achieved inside the joint sleeve 1. By setting up the heat dissipation component 4, the joint sleeve 1 can automatically cool itself by utilizing the pressure change during operation, thereby solving the problem that the joint sleeve 1 is easily kept in a high temperature state for a long time during operation due to the slow air circulation inside the mine, which causes a safety hazard. In addition, the cooling efficiency is greatly improved by dividing the inside of the joint sleeve 1 into two cavities for circulating cooling. At the same time, the cold air from the outside will pass through the air inlet groove 49 and the sponge tube 48 when entering the joint sleeve 1, and then enter through the slide groove 45 at the bottom of the fitting ring 44. The cold air from the outside is filtered by the sponge tube 48 to avoid the high humidity of the air in the mine directly entering the joint sleeve 1, causing damage to the copper core 3. The problem of damage is solved. As the driving ring 41 moves, the extrusion ring 47 is driven to move through the slide bar 46, and then the sponge tubes 48 on both sides of the joint sleeve 1 are continuously squeezed through the movement of the extrusion ring 47, so that the sponge tubes 48 are automatically cleaned during work to avoid the sponge tubes 48 absorbing too much moisture after working for a long time and reducing the air circulation rate, thereby causing the problem of poor heat dissipation of the joint sleeve 1. Before the external cold air passes through the air inlet groove 49, it will be filtered in advance through the air inlet hole 53 on the filling ring 52 to avoid impurities entering the air inlet groove 49 with the air and causing blockage, thereby greatly improving the use stability of the device, and at the same time, it can also prevent impurities falling in the mine from clogging the air inlet groove 49, and the driving ring 41 drives the extrusion ring 47 to move to the joint sleeve When the middle part of the tube 1 moves, it will gradually approach the extrusion groove 58, that is, it will eventually contact with the dislocation strip 511 in the extrusion groove 58 and produce continuous extrusion. As the dislocation strip 511 is squeezed, it will move outward through the extrusion groove 58, thereby pushing the extrusion plate 510 to squeeze the extrusion bag 59 in the mounting ring 56, causing the internal cavity air pressure of the extrusion bag 59 to increase, thereby transmitting its internal air pressure to the pressure groove 512. As the air pressure inside the pressure groove 512 increases, it will push the closed ring 513 to move outward, that is, finally make the closed ring 513 close and block the air inlet groove 49, thereby achieving the automatic sealing of the inside of the joint sleeve 1 by the reset of the driving ring 41 after the work is completed, to prevent water vapor from entering the inside of the joint sleeve 1, thereby greatly improving the service life of the device.At the same time, the protection effect on the copper core 3 can be further improved.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipating joint device for a fireproof cable, comprising a joint sleeve (1), characterized in that: The two ends of the joint sleeve (1) are symmetrically fixedly connected with a plug socket (2), wherein the plug socket (2) is connected to the end of the fireproof cable, and the inner end of the plug socket (2) is fixedly connected with a copper core (3), wherein the two plug sockets (2) are fixedly connected via the copper core (3), and further comprising: A heat dissipation component (4), wherein the heat dissipation component (4) is fixedly mounted on the joint sleeve (1), wherein the heat dissipation component (4) slides along the surface of the copper core (3); A protection component (5), the protection component (5) being fixedly mounted on the outer surface of the joint sleeve (1), the protection component (5) and the heat dissipation component (4) working in cooperation with each other; The heat dissipation component (4) comprises a drive ring (41), the drive ring (41) being slidably sleeved on the outer surface of the copper core (3), the bottom of the drive ring (41) being threadedly connected to a drive rod (42), the input end of the drive rod (42) being threadedly connected to the outer surface of the joint sleeve (1), wherein the drive rod (42) is driven to rotate by an electric power system, the surface of the drive ring (41) away from the drive rod (42) being threadedly connected to a guide rod (43), the two ends of the guide rod (43) being respectively fixedly connected to the inner surfaces of both sides of the joint sleeve (1), the outer surface of the drive ring (41) being slidably connected to a fitting ring (44), the two ends of the fitting ring (44) being respectively fixedly connected to the inner surfaces of both sides of the joint sleeve (1); The bottom of the fitting ring (44) is provided with a slide groove (45), a slide bar (46) is slidably connected in the slide groove (45), the inner side of the slide bar (46) is fixedly connected to the outer surface of the driving ring (41), the outer side of the slide bar (46) is fixedly connected to an extrusion ring (47), the inner surfaces of both sides of the joint sleeve (1) are symmetrically fixedly connected with sponge tubes (48), and the outer surfaces of both sides of the joint sleeve (1) are symmetrically penetrated with air inlet grooves (49); The protection assembly (5) comprises a cover ring (51), wherein the cover ring (51) is symmetrically fixedly connected to the outer surfaces of both sides of the joint sleeve (1), a filling ring (52) is fixedly connected to the side of the cover ring (51) close to each other, and a surface of the filling ring (52) away from the cover ring (51) is fixedly connected to the outer surface of the joint sleeve (1), an air inlet hole (53) is formed through the outer surface of the filling ring (52), a water outlet groove (54) is formed through the outer surface of the bottom of the cover ring (51), retaining rings (55) are symmetrically fixedly connected to the outer surfaces of both sides of the joint sleeve (1), and a central portion of the joint sleeve (1) is provided with a sealing ring (55). A mounting ring (56) is fixedly sleeved on the outer surface of the joint sleeve (1), a mounting groove (57) is provided inside the mounting ring (56), an extrusion groove (58) is provided in the mounting groove (57), an extrusion bag (59) is fixedly connected to the inner surface of the mounting ring (56), an extrusion plate (510) is fixedly connected to the outer surface of the extrusion bag (59), a dislocation strip (511) is fixedly connected to the surface of the extrusion plate (510) away from the extrusion bag (59), pressure grooves (512) are symmetrically provided on both sides of the joint sleeve (1), and a closed ring (513) is elastically slidably connected to the pressure groove (512).

2. A heat dissipating joint device for a fireproof cable according to claim 1, characterized in that: The diameter of the fitting ring (44) is smaller than the diameter of the joint sleeve (1), and the extrusion ring (47) is slidably fitted in the cavity between the fitting ring (44) and the joint sleeve (1), wherein the extrusion ring (47) and the drive ring (41) are initially arranged in the middle of the joint sleeve (1).

3. A heat dissipating joint device for a fireproof cable according to claim 2, characterized in that: The sponge tube (48) is arranged in the cavity between the fitting ring (44) and the joint sleeve (1).

4. A heat dissipating joint device for a fireproof cable according to claim 3, characterized in that: The air inlet grooves (49) are distributed in an annular shape on the outer surfaces of the edges of both sides of the joint sleeve (1), and the air inlet grooves (49) are arranged on the outside of the sponge tube (48).

5. A heat dissipating joint device for a fireproof cable according to claim 4, characterized in that: The cover ring (51) is arranged on the outside of the air intake groove (49).

6. A heat dissipating joint device for a fireproof cable according to claim 5, characterized in that: The retaining ring (55) is arranged inside the cover ring (51), and the retaining ring (55) does not contact the cover ring (51), wherein the retaining ring (55) is arranged outside the filling ring (52).

7. A heat dissipating joint device for a fireproof cable according to claim 6, characterized in that: The extrusion groove (58) is arranged through the mounting ring (56) and the joint sleeve (1), and six of the extrusion grooves (58) are arranged at fixed intervals around the central axis of the joint sleeve (1).

8. A heat dissipating joint device for a fireproof cable according to claim 7, characterized in that: The extrusion bag (59) is arranged in a ring shape, the extrusion plate (510) is arranged outside the extrusion groove (58), the dislocation strip (511) is arranged in an arc shape, and the dislocation strip (511) is elastically slidably connected in the extrusion groove (58).

9. A heat dissipating joint device for a fireproof cable according to claim 8, characterized in that: The pressure groove (512) is arranged in a ring shape, and the pressure groove (512) is communicated with the internal cavity of the extrusion bag (59).

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