A power cable intermediate joint with temperature measurement function

Abstract

The present invention discloses an intermediate joint of a power cable with a temperature measuring function, which relates to the technical field of power cables and comprises two cable bodies. A protective mechanism is arranged between the outer surfaces of the two cable bodies, and the protective mechanism comprises two circular rings and two protective shells. A protective frame is fixed to the outer wall of each circular ring, and a plurality of second reinforcing rods are fixed equidistantly between the two protective frames. The present invention can improve the impact resistance of the intermediate joint of the power cable by arranging the protective mechanism, that is, avoid the situation that the power cable joint is damaged when an object collides with the intermediate joint of the power cable with a large impact force, thereby ensuring the sealing of the connection between the two sections of the cable, that is, ensuring the continuous transmission of electric energy, which not only improves the use effect of the intermediate joint of the power cable, but also improves the use efficiency of the intermediate joint of the power cable.

Description

Technical Field

[0001] The invention relates to the technical field of power cables, in particular to a power cable intermediate joint with a temperature measurement function. Background Art

[0002] Power cable is a cable used to transmit electrical energy. It is mainly composed of a copper core, an insulation layer, a shielding layer, a protective layer and a wear-resistant layer. During the laying process of power cables, due to the limited supply length of the cable, or the need to repair or replace some cable sections, it is necessary to use an intermediate joint to connect the two sections of the cable so that electrical energy can be transmitted continuously.

[0003] In the existing technology, during actual use, the existing power cable intermediate joint with temperature measurement function can connect two sections of cable together to realize continuous cable transmission operation, and monitor the temperature of the connection between the two sections of cable to prevent breakdown or fire. However, the impact resistance of the power cable intermediate joint is weak. When an object collides with the power cable intermediate joint with a large impact force, the power cable joint with weak impact resistance will be damaged, which will lead to reduced sealing of the connection between the two sections of cable, and then affect the continuous transmission of electric energy.

[0004] Therefore, we propose a new power cable intermediate joint with temperature measurement function to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide an intermediate joint of a power cable with a temperature measuring function, so as to solve the problem that the existing intermediate joint of a power cable with a temperature measuring function has a weak impact resistance. When an object collides with the intermediate joint of the power cable with a large impact force, the power cable joint will be damaged, thereby reducing the sealing performance of the connection between the two sections of the cable, thereby affecting the continuous transmission of electric energy.

[0006] To achieve the above object, the present invention provides the following technical solution: an intermediate joint of a power cable with a temperature measurement function, comprising two cable bodies, wherein a protective mechanism is arranged between the outer surfaces of the two cable bodies;

[0007] The protective mechanism includes two circular rings and two protective shells, a protective frame is fixed to the outer wall of each circular ring, a plurality of first reinforcing rods are fixed and distributed equidistantly between the two protective frames, a plurality of rectangular rings are fixed and distributed equidistantly between the outer surfaces of the plurality of first reinforcing rods, a plurality of second reinforcing rods are fixed and distributed equidistantly between the two protective frames, a group of V-shaped rods are fixed to the outer surface of each of the second reinforcing rods, a sealing gasket is bonded and connected to the inner wall of each protective shell near both sides, a cylindrical groove is provided on the outer wall of each protective shell near both sides, a clamping rod is rotatably connected to the inside of each cylindrical groove through a bearing, two cylindrical holes are provided on the outer surfaces of the two rectangular rings, and a rubber ring is provided inside each cylindrical hole.

[0008] Preferably, the plurality of first reinforcing rods and the plurality of second reinforcing rods are arranged relatively staggered, the two ends of each V-shaped rod in each group are respectively fixed to the outer surfaces of two adjacent first reinforcing rods, the two protective shells are connected by a plurality of bolts and a plurality of nuts, the four sealing gaskets are divided into two groups, and the opposite sides of the sealing gaskets in each group are in contact with each other.

[0009] Preferably, one end of each of the clamping rods is movably sleeved inside each rubber ring, the two protective shells are located between the interiors of multiple rectangular rings, the two cable bodies are movably sleeved inside two circular rings, and the outer surface of each group of sealing pads is in contact with the surface of the wear-resistant layer of each cable body.

[0010] Preferably, an intermediate joint body is arranged between the ends of the two cable bodies, and the two intermediate joint bodies include a connecting tube, and the connecting tube is fixed between the outer surfaces of the copper cores of the two cable bodies, and the outer wall of the connecting tube is provided with a first open shielding cover, and the outer wall of the first open shielding cover is provided with a second open shielding cover.

[0011] Preferably, two springs are provided on the outer wall of the second open shielding cover, a sensor is provided on the outer wall of the second open shielding cover, an insulating tube is provided between the outer surfaces of the two springs, the sensor is located between the insulating tube and the second open shielding cover, and a shielding net is provided on the outer wall of the insulating tube.

[0012] Preferably, the outer surfaces of the two cable bodies are each provided with a sealing sleeve, the opposite ends of the two sealing sleeves are respectively in contact with the two ends of the shielding net, the outer wall of the sealing sleeve is provided with a waterproof sleeve, the two end surfaces of the waterproof sleeve are respectively bonded to the surfaces of the two sealing sleeves, and the outer wall of the waterproof sleeve is provided with an inner protective sleeve.

[0013] Preferably, the two end surfaces of the inner protective sleeve are respectively bonded to the surfaces of the two sealing sleeves, an outer protective sleeve is arranged between the outer walls of the two sealing sleeves and the outer wall of the inner protective sleeve, the outer walls of the insulating layers of the two cable bodies are in contact with the surfaces of the insulating tube, and the outer walls of the protective layers of the two cable bodies are respectively in contact with the insides of the two sealing sleeves.

[0014] Preferably, the outer walls of the wear-resistant layers of the two cable bodies are in contact with the inner wall of the outer protective sleeve, the wire end of the sensor is between the shielding net and the insulating layer of one of the cable bodies, and the wire end of the sensor is between one of the sealing sleeves and the protective layer of one of the cable bodies.

[0015] Preferably, the wire end of the sensor is located between one of the sealing sleeves and the insulating layer of one of the cable bodies, the wire end of the sensor is located between the wear-resistant layer of one of the cable bodies and the outer protective sleeve, the outer wall of the outer protective sleeve is provided with a plurality of anti-tensile ropes equidistantly distributed, and a plurality of first opening rings are provided between the outer surfaces of the plurality of anti-tensile ropes.

[0016] Preferably, the outer protective sleeve is located between the interior of the two protective shells, each of the first opening rings is located inside the two protective shells, two arc strips are arranged between the outer walls of the two protective shells, the two arc strips are respectively located at the mounting hole positions of the bolts and nuts of the two protective shells, and a plurality of second opening rings are arranged between the outer surfaces of the two arc strips.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can improve the impact resistance of the power cable intermediate joint by arranging a protective mechanism, that is, to avoid the situation where the power cable intermediate joint is damaged when an object collides with the power cable intermediate joint with a large impact force, thereby ensuring the sealing of the connection between the two sections of the cable, that is, ensuring the continuous transmission of electric energy, which not only improves the use effect of the power cable intermediate joint, but also improves the use efficiency of the power cable intermediate joint. When the first open ring completes the installation operation, the four clamping rods, bearings, four rubber rings, four cylindrical holes and four cylindrical grooves are first used to cooperate to achieve the two protective shells to move in opposite directions, and after the movement is completed, it can prevent them from moving automatically.

[0019] 2. According to the present invention, when the two protective shells are moved to appropriate positions, the cooperation of four clamping rods, bearings, four cylindrical holes, multiple bolts, multiple nuts and four cylindrical grooves can be used to make the opposite sides of the two protective shells contact and fix the two protective shells together. When an object collides with the middle joint of the power cable with a large force, the cooperation of two circular rings, two protective frames, multiple first reinforcing rods and multiple second reinforcing rods can be used to achieve the first defense against the colliding object. At the same time, the cooperation of multiple rectangular rings and multiple V-shaped rods can be used to strengthen the effect of the first defense. When the object collides and damages the first reinforcing rod or the second reinforcing rod, the cooperation of the two protective shells can be used to achieve the second defense against the colliding object, that is, double defense is used to improve the impact resistance of the middle joint of the power cable.

[0020] 3. The present invention can connect two sections of cable bodies together by setting an intermediate joint body, that is, it can realize continuous transmission of electric energy, and at the same time, it can monitor the temperature of the connection between the two sections of cable bodies in real time to prevent the temperature from being too high and causing breakdown or fire. When the two sections of cable bodies need to be connected together, the copper cores of the two sections of cable bodies are first fixed together by the cooperation of the connecting pipe, and then the electromagnetic shielding capability of the intermediate joint of the power cable is improved by the cooperation of the first opening shielding cover and the second opening shielding cover. Then, the cooperation of the two springs can be used to fix the first opening shielding cover and the second opening shielding cover tightly on the connecting pipe.

[0021] 4. The present invention then utilizes sensors, controllers of monitoring equipment in the monitoring room, and temperature thresholds pre-set by the controller to monitor the temperature at the connection between the two sections of the cable body in real time, and then utilizes the cooperation of two sealing sleeves, insulating tubes, shielding nets, waterproof sleeves, inner protective sleeves, and outer protective sleeves to enable the middle joint of the power cable to have multiple functions, and then utilizes the cooperation of the tensile rope and the first opening ring to improve the tensile strength of the two sections of the cable body after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a partial cross-sectional structural schematic diagram of a power cable intermediate joint with a temperature measurement function according to the present invention;

[0023] Figure 2 This is a three-dimensional diagram of a power cable intermediate joint with a temperature measurement function according to the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the second opening ring of the cable body, the arc strip, the protective shell and the cylindrical groove of the power cable intermediate joint with temperature measurement function of the present invention;

[0025] Figure 4It is a schematic diagram of the three-dimensional structure of a second reinforcing rod and a V-shaped ring of an intermediate joint of a power cable with a temperature measuring function according to the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of a first reinforcing rod, a rectangular ring and a cylindrical hole of an intermediate joint of a power cable with a temperature measuring function according to the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of a first reinforcing rod, a second reinforcing rod, a rectangular ring, a V-shaped rod and a cylindrical hole of an intermediate joint of a power cable with a temperature measuring function according to the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of a protective shell and a sealing gasket of a power cable intermediate joint with a temperature measurement function according to the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of a first opening shielding cover and a second opening shielding cover of a power cable intermediate joint with a temperature measurement function according to the present invention;

[0030] Fig. 9 It is a partially cutaway stereoscopic view of a power cable intermediate joint with a temperature measuring function according to the present invention;

[0031] Fig.10 It is a partial three-dimensional diagram of a protection mechanism of a power cable intermediate joint with a temperature measurement function according to the present invention;

[0032] Fig.11 It is a partially cutaway stereoscopic view from another angle of a power cable intermediate joint with a temperature measuring function of the present invention;

[0033] Fig.12 The invention provides a power cable intermediate joint with a temperature measuring function. Figure 1 The enlarged stereogram at A in the middle;

[0034] Fig.13 The present invention is a schematic diagram of the three-dimensional structure of a circular ring and a protective frame of a power cable intermediate joint with a temperature measuring function.

[0035] In the figure: 1. cable body; 2. intermediate joint body; 201. connecting pipe; 202. first opening shielding cover; 203. second opening shielding cover; 204. spring; 205. sensor; 206. insulating tube; 207. shielding net; 208. sealing sleeve; 209. waterproof sleeve; 210. inner protective sleeve; 211. outer protective sleeve; 212. tensile rope; 213. first opening ring; 3. arc strip; 4. second opening ring; 5. protection mechanism; 501. circular ring; 502. protection frame; 503. first reinforcing rod; 504. rectangular ring; 505. second reinforcing rod; 506. V-shaped rod; 507. protective shell; 508. sealing pad; 509. cylindrical groove; 510. cylindrical hole; 511. rubber ring; 512. clamping rod. DETAILED DESCRIPTION

[0036] 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 implementation regulations described 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.

[0037] Example 1: Please refer to Figure 1-Figure 7 and Figure 9-13 As shown, the present invention provides a technical solution: an intermediate joint of a power cable with a temperature measurement function, comprising two cable bodies 1, and a protective mechanism 5 is arranged between the outer surfaces of the two cable bodies 1;

[0038] The protection mechanism 5 includes two circular rings 501 and two protective shells 507. A protection frame 502 is fixed to the outer wall of each circular ring 501. A plurality of first reinforcing rods 503 are fixed and distributed evenly between the two protective frames 502. A plurality of rectangular rings 504 are fixed and distributed evenly between the outer surfaces of the plurality of first reinforcing rods 503. A plurality of second reinforcing rods 505 are fixed and distributed evenly between the two protective frames 502. A group of V-shaped rods 506 are fixed to the outer surface of each second reinforcing rod 505. A sealing gasket 508 is bonded and connected to the inner wall of each protective shell 507 near both sides. A sealing gasket 508 is bonded and connected to the outer wall of each protective shell 507 near both sides. The cylindrical groove 509 is provided with a clamping rod 512 in a rotational manner through a bearing inside each cylindrical groove 509, wherein the outer surfaces of the two rectangular rings 504 are provided with two cylindrical holes 510, and the inner surface of each cylindrical hole 510 is provided with a rubber ring 511, and the plurality of first reinforcing rods 503 and the plurality of second reinforcing rods 505 are arranged in a staggered manner relative to each other, and the two ends of each V-shaped rod 506 in each group are respectively fixed to the outer surfaces of the two adjacent first reinforcing rods 503, and the two protective shells 507 are connected by a plurality of bolts and a plurality of nuts, and the four sealing gaskets 508 are divided into two groups, and the opposite sides of each group of sealing gaskets 508 are in contact with each other, and each clamping rod 5 One end of 12 is respectively movably sleeved inside each rubber ring 511, two protective shells 507 are both located between the multiple rectangular rings 504, two cable bodies 1 are respectively movably sleeved inside the two circular rings 501, the outer surface of each group of sealing pads 508 is respectively in contact with the wear-resistant layer surface of each cable body 1, an intermediate joint body 2 is arranged between the ends of the two cable bodies 1, the two intermediate joint bodies 2 include connecting pipes 201, the outer surfaces of the two cable bodies 1 are respectively provided with sealing sleeves 208, the outer wall of the sealing sleeve 208 is provided with a waterproof sleeve 209, the outer wall of the waterproof sleeve 209 is provided with an inner protective sleeve 210, and the two sealing An outer protective sleeve 211 is arranged between the outer wall of the envelope 208 and the outer wall of the inner protective sleeve 210, and a plurality of tensile ropes 212 are evenly distributed on the outer wall of the outer protective sleeve 211, and a plurality of first opening rings 213 are arranged between the outer surfaces of the plurality of tensile ropes 212, and the outer protective sleeve 211 is located between the interiors of the two protective shells 507, and each first opening ring 213 is located inside the two protective shells 507, and two arcuate bars 3 are arranged between the outer walls of the two protective shells 507, and the two arcuate bars 3 are respectively located at the mounting hole positions of the bolts and nuts of the two protective shells 507, and a plurality of second opening rings 4 are arranged between the outer surfaces of the two arcuate bars 3.

[0039] In this embodiment, when the first open ring 213 completes the installation operation, the four clamping rods 512, bearings, four rubber rings 511, four cylindrical holes 510 and four cylindrical grooves 509 are used to make the two protective shells 507 move in opposite directions until the two protective shells 507 are moved to a point where they cannot move (the two protective shells 507 can be fixed after moving), and then the two protective shells 507 and the components installed on the protective shells 507 are moved until the outer protective sleeve 211 is between the inside of the two protective shells 507, and then the four clamping rods 512, bearings, four cylindrical holes 510 and four cylindrical grooves 509 are used to make the opposite sides of the two protective shells 507 contact, and then the two protective shells 507 are fixed together using multiple nuts and multiple bolts, and then the two arc strips 3 are glued to the bolt and nut mounting hole positions of the two protective shells 507 using glue, and then multiple second open The opening rings 4 are installed between the outer surfaces of the two arc-shaped strips 3, that is, the contraction force of the second opening ring 4 is used to fix the two arc-shaped strips 3 on the two protective shells 507. When an object collides with the middle joint of the power cable with a large force, the cooperation of the two circular rings 501, the two protective frames 502, the multiple first reinforcing rods 503 and the multiple second reinforcing rods 505 can be used to perform a first defense against the colliding object. At the same time, the cooperation of the multiple rectangular rings 504 and the multiple V-shaped rods 506 can enhance the effect of the first defense. When the object collides and damages the first reinforcing rod 503 or the second reinforcing rod 505, the cooperation of the two protective shells 507 can be used to achieve a second defense against the colliding object, that is, to prevent the colliding object from damaging the outer protective cover 211, the inner protective cover 210 and the waterproof cover 209 and other components, thereby ensuring the sealing of the middle joint of the power cable and further ensuring the continuous transmission of electric energy.

[0040] Embodiment 2: According to Figure 1-Figure 3 and Figure 7-Figure 13As shown, the protection mechanism 5 includes two rings 501 and two protective shells 507, an intermediate joint body 2 is arranged between the ends of the two cable bodies 1, and the two intermediate joint bodies 2 include a connecting tube 201, and the connecting tube 201 is fixed between the outer surfaces of the copper cores of the two cable bodies 1. The outer wall of the connecting tube 201 is provided with a first open shielding cover 202, and the outer wall of the first open shielding cover 202 is provided with a second open shielding cover 203, and the outer wall of the second open shielding cover 203 is provided with two springs 204, and the outer wall of the second open shielding cover 203 is provided with The sensor 205 and the outer surfaces of the two springs 204 are provided with an insulating tube 206, the sensor 205 is located between the insulating tube 206 and the second open shielding cover 203, the outer wall of the insulating tube 206 is provided with a shielding net 207, the outer surfaces of the two cable bodies 1 are provided with sealing sleeves 208, the opposite ends of the two sealing sleeves 208 are respectively in contact with the two ends of the shielding net 207, the outer wall of the sealing sleeve 208 is provided with a waterproof sleeve 209, the two end surfaces of the waterproof sleeve 209 are respectively bonded to the surfaces of the two sealing sleeves 208, and the outer surface of the waterproof sleeve 209 is provided with a waterproof sleeve 209. The wall is provided with an inner protective sleeve 210, and the surfaces of both ends of the inner protective sleeve 210 are respectively bonded to the surfaces of the two sealing sleeves 208, and an outer protective sleeve 211 is provided between the outer walls of the two sealing sleeves 208 and the outer wall of the inner protective sleeve 210, the outer walls of the insulation layers of the two cable bodies 1 are in contact with the surface of the insulating tube 206, the outer walls of the protective layers of the two cable bodies 1 are in contact with the inside of the two sealing sleeves 208, and the outer walls of the wear-resistant layers of the two cable bodies 1 are in contact with the inner walls of the outer protective sleeve 211, and the wire ends of the sensor 205 are between the shielding net 207 and The wire end of the sensor 205 is located between the insulating layers of one of the cable bodies 1, between one of the sealing sleeves 208 and the protective layer of one of the cable bodies 1, between the sealing sleeves 208 and the insulating layers of one of the cable bodies 1, and between the wear-resistant layer of one of the cable bodies 1 and the outer protective sleeve 211. The outer wall of the outer protective sleeve 211 is evenly distributed with multiple anti-tension ropes 212, and multiple first opening rings 213 are arranged between the outer surfaces of the multiple anti-tension ropes 212.

[0041] In this embodiment, when two sections of cable bodies 1 need to be connected together, firstly, the two protective shells 507 that are not fixed with bolts and nuts and the components installed on the protective shells 507 are all put on one of the cable bodies 1, and then the shielding net 207, the insulating tube 206, the sealing sleeve 208, the waterproof sleeve 209, the inner protective sleeve 210 and the outer protective sleeve 211 are put on one of the cable bodies 1 in sequence (the placement steps are as shown in FIG. Figure 1As shown), then put the connecting tube 201 between the copper cores of the two cable bodies 1, and make the copper cores of the two cable bodies 1 contact each other, then use professional tools to flatten the connecting tube 201 until the copper cores of the two cable bodies 1 and the connecting tube 201 are crimped together, then put the first opening shielding cover 202 on the connecting tube 201, then put the second opening shielding cover 203 on the first opening shielding cover 202, then use two springs 204 to tightly fix the first opening shielding cover 202 and the second opening shielding cover 203 on the connecting tube 201, then stick the detection end of the sensor 205 on the second opening shielding cover 203, and finally put the insulating tube 206 is put on the second opening shielding cover 203. When the insulating tube 206 is placed, adjust the position of the sensor 205, then pull out the support strip inside the insulating tube 206 (cold shrinkage), and use the shrunk insulating tube 206 to tightly fix the sensor 205 (chip temperature sensor) on the second opening shielding cover 203, then move the shielding net 207 and the two sealing sleeves 208 to a suitable position, and then use the heat shrink method to make the two sealing sleeves 208 tightly cover the two cable bodies 1 respectively, and then put the waterproof sleeve 209 between the outer walls of the two sealing sleeves 208 and the outer wall of the shielding net 207, and after the waterproof sleeve 209 is moved, After the moving operation, sealant is applied to the inner wall of the waterproof sleeve 209 near both ends, and then the waterproof sleeve 209 is heat-shrunk and fixed between the two sealing sleeves 208 and the shielding net 207, and finally the inner protective sleeve 210 is put on the waterproof sleeve 209. When the inner protective sleeve 210 completes the moving operation, sealant is applied to the inner wall of the inner protective sleeve 210 near both ends, and then the inner protective sleeve 210 is fixed to the waterproof sleeve 209 by heat shrinking, and then the outer protective sleeve 211 is put between the outer walls of the two sealing sleeves 208 and the outer wall of the outer protective sleeve 211. At the same time, after the outer protective sleeve 211 completes the moving operation, it is directly fixed by heat shrinking. Between the two sealing sleeves 208 and the inner protective sleeve 210, a plurality of tensile ropes 212 are bonded to the outer protective sleeve 211, and then a plurality of first open rings 213 are installed between the outer surfaces of the plurality of tensile ropes 212 to fix them. When it is necessary to monitor the temperature at the connection between the two sections of the cable body 1, the wire end of the sensor 205 is first connected to the external transmission line, and then the transmission line is connected to the controller of the monitoring equipment in the monitoring room. After completing the connection operation, the temperature threshold of the controller is set, and then the controller, the temperature threshold set by the controller and the sensor 205 are used to monitor the temperature at the connection between the two sections of the cable body 1 in real time.

[0042] The effect and working principle of the whole mechanism are as follows: when two sections of cable bodies 1 need to be connected together, firstly put the two protective shells 507 and the components installed on the protective shells 507 which are not fixed by bolts and nuts on one of the cable bodies 1, and then put the shielding net 207, the insulating tube 206, the sealing sleeve 208, the waterproof sleeve 209, the inner protective sleeve 210 and the outer protective sleeve 211 on one of the cable bodies 1 in sequence (the placement steps are as follows Figure 1As shown), then put the connecting tube 201 between the copper cores of the two cable bodies 1, and let the copper cores of the two cable bodies 1 contact each other, then use professional tools to flatten the connecting tube 201 until the copper cores of the two cable bodies 1 and the connecting tube 201 are crimped together, then put the first opening shielding cover 202 on the connecting tube 201, then put the second opening shielding cover 203 on the first opening shielding cover 202, and then use two springs 204 to tightly fix the first opening shielding cover 202 and the second opening shielding cover 203 on the connecting tube 201, then stick the detection end of the sensor 205 on the second opening shielding cover 203, and finally put the insulating tube 206 on the second opening shielding cover 203. When the insulating tube 206 is placed When the sensor 205 is adjusted, the support strip inside the insulating tube 206 (cold shrinkage) is pulled out, and the sensor 205 (chip temperature sensor) is tightly fixed on the second opening shielding cover 203 by using the shrunk insulating tube 206, and then the shielding net 207 and the two sealing sleeves 208 are moved to a suitable position, and then the two sealing sleeves 208 are tightly covered on the two cable bodies 1 by heat shrinking, and then the waterproof sleeve 209 is covered between the outer walls of the two sealing sleeves 208 and the outer wall of the shielding net 207, and after the movement operation of the waterproof sleeve 209 is completed, the inner wall of the waterproof sleeve 209 is coated with sealant near both ends, and then the waterproof sleeve 209 is heat-shrunk and fixed between the two sealing sleeves 208 and the shielding net 207. , and finally, the inner protective sleeve 210 is put on the waterproof sleeve 209. When the inner protective sleeve 210 completes the moving operation, sealant is applied to the inner wall of the inner protective sleeve 210 near both ends, and then the inner protective sleeve 210 is fixed to the waterproof sleeve 209 by heat shrinking. Then, the outer protective sleeve 211 is put between the outer walls of the two sealing sleeves 208 and the outer wall of the outer protective sleeve 211. At the same time, after the outer protective sleeve 211 completes the moving operation, it is directly fixed between the two sealing sleeves 208 and the inner protective sleeve 210 by heat shrinking. Then, a plurality of tensile ropes 212 are bonded to the outer protective sleeve 211, and then a plurality of first open rings 213 are installed between the outer surfaces of the plurality of tensile ropes 212 to fix them. When the first open rings 213 are completed During the installation operation, the two protective shells 507 are first moved in opposite directions by using the cooperation of the four clamping rods 512, bearings, four rubber rings 511, four cylindrical holes 510 and four cylindrical grooves 509 until the two protective shells 507 are moved to a point where they cannot move (the two protective shells 507 can be fixed after being moved), and then the two protective shells 507 and the components installed on the protective shells 507 are moved until the outer protective sleeve 211 is between the insides of the two protective shells 507, and then the four clamping rods 512, bearings, four cylindrical holes 510 and four cylindrical grooves 509 are used to make the opposite sides of the two protective shells 507 contact each other, and then the two protective shells 507 are fixed together by using multiple nuts and multiple bolts.Then, the two arc strips 3 are glued to the bolt and nut mounting holes of the two protective shells 507 with glue, and then the multiple second open rings 4 are installed between the outer surfaces of the two arc strips 3, that is, the two arc strips 3 are fixed to the two protective shells 507 by the contraction force of the second open rings 4. When an object collides with the middle joint of the power cable with a large force, the cooperation of the two circular rings 501, the two protective frames 502, the multiple first reinforcing rods 503 and the multiple second reinforcing rods 505 can be used to provide a first defense against the colliding object. At the same time, the cooperation of the multiple rectangular rings 504 and the multiple V-shaped rods 506 can enhance the effect of the first defense. When the object collides and damages the first reinforcing rod 503 or the second reinforcing rod 505, At this time, by using the cooperation of the two protective shells 507, a second defense can be implemented against the colliding objects, that is, the outer protective cover 211, the inner protective cover 210 and the waterproof cover 209 and other components can be prevented from being damaged by the colliding objects, thereby ensuring the sealing of the middle joint of the power cable, and then ensuring the continuous transmission of electric energy. When it is necessary to monitor the temperature at the connection between the two sections of the cable body 1, the wire end of the sensor 205 is first connected to the external transmission line, and then the transmission line is connected to the controller of the monitoring equipment in the monitoring room. After completing the connection operation, the temperature threshold of the controller is set, and then the controller, the temperature threshold set by the controller and the cooperation of the sensor 205 can be used to monitor the temperature at the connection between the two sections of the cable body 1 in real time.

[0043] Among them, bolts and nuts are commonly used parts in reality.

[0044] Among them, the cable body 1, the first open shielding cover 202, the second open shielding cover 203, the spring 204 (which functions similarly to a constant force spring), the sensor 205, the shielding net 207, the first open ring 213 (which functions similarly to a constant force spring) and the second open ring 4 (which functions similarly to a constant force spring) are all prior arts, and their models can be selected according to actual conditions, and no further explanation will be given here.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power cable intermediate joint with temperature measurement function, characterized in that: It comprises two cable bodies (1), with a protective mechanism (5) being arranged between the outer surfaces of the two cable bodies (1); The protection mechanism (5) comprises two circular rings (501) and two protective shells (507); a protection frame (502) is fixed to the outer wall of each circular ring (501); a plurality of first reinforcing rods (503) are fixed and distributed equidistantly between the two protective frames (502); a plurality of rectangular rings (504) are fixed and distributed equidistantly between the outer surfaces of the plurality of first reinforcing rods (503); a plurality of second reinforcing rods (505) are fixed and distributed equidistantly between the two protective frames (502); and the outer surface of each second reinforcing rod (505) is fixed and distributed equidistantly between the two protective frames (502). A group of V-shaped rods (506) are fixed on the surface, and sealing pads (508) are bonded and connected to the inner wall of each protective shell (507) near the two sides. A cylindrical groove (509) is opened on the outer wall of each protective shell (507) near the two sides, and a clamping rod (512) is rotatably connected to the inside of each cylindrical groove (509) through a bearing. Two cylindrical holes (510) are opened on the outer surfaces of the two rectangular rings (504), and a rubber ring (511) is arranged inside each cylindrical hole (510).

2. The power cable intermediate joint with temperature measurement function according to claim 1, characterized in that: The plurality of first reinforcing rods (503) and the plurality of second reinforcing rods (505) are arranged in a staggered manner relative to each other, both ends of each V-shaped rod (506) in each group are respectively fixed to the outer surfaces of two adjacent first reinforcing rods (503), the two protective shells (507) are connected by a plurality of bolts and a plurality of nuts, the four sealing gaskets (508) are divided into two groups, and opposite sides of the sealing gaskets (508) in each group are in contact with each other.

3. The power cable intermediate joint with temperature measurement function according to claim 1, characterized in that: One end of each of the clamping rods (512) is movably sleeved inside each rubber ring (511), the two protective shells (507) are located between the interiors of the plurality of rectangular rings (504), the two cable bodies (1) are movably sleeved inside the two circular rings (501), and the outer surface of each set of sealing pads (508) is in contact with the surface of the wear-resistant layer of each cable body (1).

4. The power cable intermediate joint with temperature measurement function according to claim 1, characterized in that: An intermediate joint body (2) is provided between the ends of the two cable bodies (1), the two intermediate joint bodies (2) comprising a connecting tube (201), the connecting tube (201) being fixed between the outer surfaces of the copper cores of the two cable bodies (1), the outer wall of the connecting tube (201) being provided with a first opening shielding cover (202), and the outer wall of the first opening shielding cover (202) being provided with a second opening shielding cover (203).

5. The power cable intermediate joint with temperature measurement function according to claim 4 is characterized in that: The outer wall of the second open shielding cover (203) is provided with two springs (204), the outer wall of the second open shielding cover (203) is provided with a sensor (205), an insulating tube (206) is provided between the outer surfaces of the two springs (204), the sensor (205) is located between the insulating tube (206) and the second open shielding cover (203), and the outer wall of the insulating tube (206) is provided with a shielding net (207).

6. The power cable intermediate joint with temperature measurement function according to claim 5, characterized in that: The outer surfaces of the two cable bodies (1) are both provided with sealing sleeves (208), the opposite ends of the two sealing sleeves (208) are respectively in contact with the two ends of the shielding net (207), the outer walls of the sealing sleeves (208) are provided with waterproof sleeves (209), the surfaces of both ends of the waterproof sleeves (209) are respectively bonded to the surfaces of the two sealing sleeves (208), and the outer wall of the waterproof sleeves (209) is provided with an inner protective sleeve (210).

7. The power cable intermediate joint with temperature measurement function according to claim 6, characterized in that: The surfaces at both ends of the inner protective sleeve (210) are respectively bonded to the surfaces of the two sealing sleeves (208); an outer protective sleeve (211) is provided between the outer walls of the two sealing sleeves (208) and the outer wall of the inner protective sleeve (210); the outer walls of the insulating layers of the two cable bodies (1) are in contact with the surfaces of the insulating tube (206); and the outer walls of the protective layers of the two cable bodies (1) are in contact with the insides of the two sealing sleeves (208).

8. The power cable intermediate joint with temperature measurement function according to claim 7, characterized in that: The outer walls of the wear-resistant layers of the two cable bodies (1) are in contact with the inner wall of the outer protective sleeve (211), the wire end of the sensor (205) is located between the shielding net (207) and the insulating layer of one of the cable bodies (1), and the wire end of the sensor (205) is located between one of the sealing sleeves (208) and the protective layer of one of the cable bodies (1).

9. The power cable intermediate joint with temperature measurement function according to claim 7, characterized in that: The wire end of the sensor (205) is located between one of the sealing sleeves (208) and the insulating layer of one of the cable bodies (1), and the wire end of the sensor (205) is located between the wear-resistant layer of one of the cable bodies (1) and the outer protective sleeve (211), and the outer wall of the outer protective sleeve (211) is provided with a plurality of tensile ropes (212) distributed at equal intervals, and a plurality of first open rings (213) are provided between the outer surfaces of the plurality of tensile ropes (212).

10. The power cable intermediate joint with temperature measurement function according to claim 9, characterized in that: The outer protective sleeve (211) is located between the insides of the two protective shells (507), each of the first opening rings (213) is located inside the two protective shells (507), two arc-shaped strips (3) are arranged between the outer walls of the two protective shells (507), the two arc-shaped strips (3) are respectively located at the mounting hole positions of the bolts and nuts of the two protective shells (507), and a plurality of second opening rings (4) are arranged between the outer surfaces of the two arc-shaped strips (3).

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