Cable protection fitting for electric power engineering

Abstract

The invention discloses a cable protection fitting for electric power engineering, and belongs to the field of protection fittings, the cable protection fitting comprises a support, the support is provided with a stranded wire, and the end part of the stranded wire is provided with a heavy hammer; the device further comprises a semicircular pressing plate and a U-shaped bolt, the pressing plate is detachably connected with the support, the U-shaped bolt is used for fixing the pressing plate to the support, the support is provided with a semicircular wire groove, the wire groove is used for placing a cable, and after the cable is placed in the wire groove, the pressing plate is fixed to the support through the U-shaped bolt. According to the scheme, the arc-shaped cavity, the air supply assembly and the communicating groove are arranged; according to the invention, air can be supplied to the communication groove through the air supply assembly in the vibration process of the heavy hammer, so that the side wall of the arc-shaped cavity is expanded, the cushion pad and the cable are more tightly attached, particulate matters in the air are prevented from entering a gap between the cable and the cushion pad, the cushion pad and the cable can be protected while the fixing effect of the bracket and the cable is improved, and the service life of the cable is prolonged. And the effect of preventing the cable and the buffer pad from being damaged due to friction is achieved.

Description

Technical Field

[0001] The present invention relates to the field of protective hardware, and more specifically, to a cable protective hardware for electric power engineering. Background Art

[0002] Power fittings can be divided into protective fittings, tension clamps, suspension clamps, connecting fittings and other categories according to their functions and structures. Among them, the protective fittings have anti-vibration hammers, which are set to reduce the vibration of the wire caused by wind.

[0003] The poles of high-voltage overhead lines are high and the spans are large. When the conductors are affected by wind, they will vibrate. When the conductors vibrate, fatigue damage will occur due to periodic bending.

[0004] The Chinese patent application with authorization announcement number: CN116598985B discloses a cable protection fitting for power engineering. The movement of the extrusion ring will squeeze the inclined surface of the rubber block, so that the rubber block moves toward the direction of the cable in the installation block after being squeezed, so that the rubber block restricts the cable again.

[0005] The above patent still has the following shortcomings: the wind is usually strong in the northern region in winter, and strong wind is the main external factor causing cable vibration. The wind acts on the cable, generating a periodic excitation force, causing the cable to vibrate. When the wind speed is high, the excitation force will be greater, resulting in an increase in the frequency and amplitude of the cable vibration; when the installation position of the shock-absorbing hammer is close to the ground, the road or the construction site, strong winds or passing vehicles will raise sand and dust and scatter it in the air; the above patent sets a rubber block between the shell and the cable, although it can use the friction and elastic force of the rubber block itself to effectively fix the cable to the shell, but Since the rubber material itself has elastic properties, when external factors cause the cable to shake, this elasticity will also cause the rubber block to move or vibrate accordingly. For this reason, a short gap will appear between the cable and the rubber block; at this time, tiny particles such as sand blown by the wind in the surrounding environment will take the opportunity to enter the gap between the rubber block and the cable. Especially in winter, the rubber block has poor elasticity and a harder texture. Therefore, once foreign matter such as sand is embedded in the rubber surface or internal structure, it will accelerate the wear process of the rubber material, thereby shortening its service life and possibly affecting the stability and safety of the entire device.

[0006] Therefore, a cable protection fitting for power engineering is proposed. Summary of the invention

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a cable protection hardware for power engineering, which can reduce the wear of the buffer pad, improve the fixing effect of the cable and the bracket, and thus improve the safety and stability of the entire device.

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A cable protection hardware for electric power engineering, comprising a bracket, a stranded wire is arranged on the bracket, and a weight is arranged at the end of the stranded wire;

[0010] It also includes a semicircular pressing plate and a U-shaped bolt. The pressing plate is detachably connected to the bracket. The U-shaped bolt is used to fix the pressing plate on the bracket. The bracket is provided with a semicircular wire groove, and the wire groove is used to place the cable. After the cable is placed in the wire groove, the pressing plate is fixed to the bracket by the U-shaped bolt, so that the bracket and the cable can be fixed together.

[0011] Buffer pads made of elastic material are installed on the side walls of the pressure plate and the cable trough. The fixing effect of the cable can be improved by providing the buffer pads that can be deformed;

[0012] An arc-shaped cavity is provided on the buffer pad, and an arc-shaped connecting groove connected with the arc-shaped cavity is provided on the side wall of the buffer pad. The connecting groove is used to connect the arc-shaped cavities on the two buffer pads, so when gas is injected into one of the connecting grooves, the air flow can flow into each arc-shaped cavity connected with the connecting groove, and an air supply component matched with the connecting groove is provided on the weight; when the air supply component supplies air to the connecting groove, the air pressure in the arc-shaped cavity connected with the connecting groove increases, and the side wall of the arc-shaped cavity expands at this time, and the buffer pad is in closer contact with the cable, thereby improving the fixing effect of the cable and the bracket, improving the stability and safety of the device, preventing the cable and the buffer pad from rubbing against each other, and playing a role in protecting the cable and the buffer pad; at the same time, it can prevent impurities from entering the gap between the buffer pad and the cable during the vibration of the cable, playing a role in preventing the wear of the buffer pad or the outer wall of the cable, and improving the protection effect of the buffer pad and the cable;

[0013] An arc groove is provided on the inner wall of the buffer pad, and a pressure relief valve connected to the arc groove is embedded on the side wall of the arc cavity. Therefore, when the cable vibrates and causes the air pressure in the arc cavity to continue to rise, the arc cavity is depressurized through the pressure relief valve. At this time, the arc groove is filled with gas, and a semicircular groove is provided on the side wall of the arc groove away from the arc cavity. The spacing between the semicircular groove and the side wall of the cable is 1-2 mm. Therefore, the gas in the arc groove will be discharged through the gap between the semicircular groove and the outer wall of the cable, thereby preventing sand from entering the gap between the buffer pad and the cable. Therefore, during the vibration of the cable, the cable and the buffer pad can be prevented from being worn, further improving the protection effect of the cable and the buffer pad, and the buffer pad is provided with a stirring component that cooperates with the arc groove. Therefore, under the action of the stirring component, the semicircular groove can be evenly exhausted, ensuring that the sand can be impacted by the airflow when on the buffer pad and the cable surface, thereby preventing the sand from being stuck between the cable and the side wall of the semicircular groove.

[0014] Furthermore, the air supply component includes a sleeve of thermal insulation material embedded in the heavy hammer, an elastic membrane is horizontally fixedly installed in the sleeve, and a counterweight is embedded on the elastic membrane. Therefore, during the swinging of the heavy hammer, the counterweight will pull the elastic membrane to deform, and an intake valve and an exhaust valve are embedded on the side wall of the sleeve. Therefore, when the counterweight moves in the direction close to the conduit, the gas in the space between the elastic membrane and the conduit in the sleeve will be discharged through the exhaust valve; when the counterweight moves in the direction away from the conduit, the space between the elastic membrane and the conduit in the sleeve draws air from the outside through the intake valve, thereby ensuring that the sleeve can continue to exhaust air to the outside through the exhaust valve. A conduit extending into the connecting groove is installed on the output end of the exhaust valve. The gas discharged from the exhaust valve enters the conduit and finally flows into the connecting groove, thereby supplying air to the connecting groove.

[0015] Furthermore, the stirring component includes a first air hole opened on the side wall of the arc groove, the first air hole is funnel-shaped, and the output end of the pressure relief valve is connected to the first air hole, so that the gas discharged from the pressure relief valve will be discharged through the first air hole, and the diameter of the first air hole close to one end of the arc groove is larger than the diameter close to one end of the arc cavity, an elastic rope is fixedly installed in the first air hole, and a spoiler block is fixedly installed on the elastic rope, and the gas discharged from the pressure relief valve will impact the spoiler block. Under the action of the elastic rope, the spoiler block will break away from contact with the first air hole and shake. At this time, the side wall of the spoiler block in the shaking state can change the flow direction of the gas discharged from the first air hole, so that the gas discharged from the first air hole can quickly fill the entire arc groove, and then the semicircular groove is evenly exhausted.

[0016] Furthermore, a mounting rod is horizontally rotatably mounted on the side wall of the spoiler block, and a spoiler is evenly and obliquely fixedly mounted on the mounting rod; in the process of airflow impacting the spoiler block, part of the airflow contacts the spoiler, and at this time, under the action of the impact force of the airflow, the spoiler drives the mounting rod to rotate, further expanding the diffusion range of the gas discharged from the first air hole, and further improving the rate at which the gas is evenly distributed in the arc groove.

[0017] Furthermore, arc-shaped protrusions are evenly provided on the side wall of the arc-shaped groove away from the first air hole, so that the protrusions will intermittently hit during the rotation of the spoiler. At this time, the protrusions will transmit the impact force to the buffer pad, thereby being able to bounce off the sand on the surface of the buffer pad, reducing the probability of sand falling onto the cable surface, thereby preventing the sand on the cable surface from entering the connection between the cable and the buffer pad. At the same time, the buffer pad is prone to cracks due to long-term exposure to the outside, so bouncing off the particles can prevent the particles from entering the cracks, thereby improving the protection effect of the buffer pad; the protrusion is made of elastic material, so when the spoiler hits the protrusion, under the action of the reaction force, the spoiler will be bounced off, thereby causing the spoiler block to shake irregularly, further improving the spoiler effect.

[0018] Furthermore, since the stranded wire is made of a plurality of metal wires twisted together, there are small gaps between the metal wires of the stranded wire, and the metal wires of the stranded wire will rub against each other during the vibration of the heavy hammer;

[0019] The stranded wire and the conduit are jointly covered with a protective cover made of elastic material, and the two ends of the protective cover are respectively fixedly connected to the side wall of the weight and the side wall of the bracket. Therefore, in windy weather, it can prevent particulate matter in the air from contacting the stranded wire, thereby protecting the stranded wire. The protective cover is made of heat-insulating material, so the heat generated by the friction between the metal wires that make up the stranded wire during the vibration of the weight will be transferred to the conduit, thereby increasing the temperature of the gas in the conduit. Therefore, by making the high-temperature gas contact with the buffer pad of elastic material, the buffer pad can be heated, thereby preventing the buffer pad of elastic material from hardening and brittle, thereby ensuring that the buffer pad can maintain flexibility and elasticity, that is, ensuring that the buffer pad can expand.

[0020] Furthermore, when the whole device is installed, the strands are parallel to the cable, so when the cable is energized, an induced magnetic field is generated around the cable;

[0021] A slide groove is provided on the inner bottom wall of the sleeve, and a gantry is slidably installed in the slide groove, and a driving mechanism cooperating with the gantry is provided in the sleeve; during the swinging of the heavy hammer, the gantry is driven by the driving mechanism to move along the slide groove, and the gantry is also displaced in the horizontal direction at this time; a metal rod and a resistance wire are provided on the horizontal section of the gantry, and the metal rod and the resistance wire are connected in series, so during the movement of the gantry along the slide groove, the gantry will move in the horizontal direction, and the metal rod cuts the magnetic flux lines at this time, wherein the induced magnetic field generated around the energized cable is an existing technology and will not be elaborated on; therefore, the resistance wire connected in series with the metal rod will generate heat, thereby improving the heating effect of the gas discharged from the sleeve, and in winter, the elasticity of the buffer pad is guaranteed, thereby ensuring that the buffer pad can be deformed.

[0022] Furthermore, the driving mechanism includes an inclined rod fixedly mounted on the bottom wall of the counterweight block, and the inclined rod cooperates with the horizontal section of the gantry. During the up and down swinging of the weight, the counterweight block will intermittently approach the inner bottom wall of the sleeve under the action of inertia. When the counterweight block approaches the inner bottom wall of the sleeve, under the action of the inclined rod, the inclined rod exerts a horizontal thrust on the gantry, so the gantry will move in the horizontal direction. An elastic bellows is commonly provided between the gantry and the side wall of the slide groove; at this time, the elastic bellows is deformed, and when the counterweight block is away from the inner bottom wall of the sleeve, the pressure exerted by the inclined rod on the gantry is reduced, and at this time the elastic bellows pulls the gantry to reset.

[0023] Furthermore, a second air hole is provided on the elastic bellows, so that air is sucked in through the second air hole during the stretching process of the elastic bellows, and when the elastic bellows is restored, the gas therein is discharged through the second air hole. The second air hole cooperates with the resistance wire, so the gas discharged from the second air hole will impact the air around the resistance wire, increasing the probability of contact between the gas in the sleeve and the resistance wire, improving the heat exchange effect, thereby improving the utilization rate of the heat generated by the resistance wire, ensuring that the heat generated by the resistance wire can be transferred to the buffer pad in time, thereby improving the heating effect of the buffer pad.

[0024] Furthermore, the buffer pad is made of rubber material. Since rubber material has good weather resistance, it can maintain stable performance in harsh environments such as light and rain. At the same time, rubber also has a certain corrosion resistance and can resist the erosion of chemical substances such as acids and alkalis. It is suitable for various complex outdoor environments. Therefore, the buffer pad made of rubber material plays a role in improving the stability of the device.

[0025] Furthermore, a mounting hole is provided on the weight, a hole connected to the mounting hole is provided on the side wall of the sleeve, and a memory alloy wire is installed on the side wall of the mounting hole; since the weight is made of metal and has good thermal conductivity, the memory alloy wire is in an extended state when the external ambient temperature is high, and in a contracted state when the external ambient temperature is low; a heat-conducting rod connected to the outside is embedded on the bottom wall of the sleeve, and a heat-insulating plate matching the heat-conducting rod is slidably installed on the inner wall of the sleeve, and the heat-insulating plate is connected to the memory alloy wire; therefore, when the temperature is high in summer, the memory alloy wire in the extended state drives the heat-insulating plate out of contact with the surface of the heat-conducting rod, so that the internal temperature of the sleeve is the same as the external temperature, and during the exhaust process of the sleeve, the buffer pad can be prevented from being softened due to excessive temperature, thereby improving the fixing effect of the bracket and the cable; in winter, the memory alloy wire in the contracted state drives the heat-insulating plate to move to the surface of the heat-conducting rod, thereby preventing the heat in the sleeve from dissipating, improving the utilization rate of the heat of the resistance wire, and ensuring that the buffer pad has sufficient elasticity.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) During the vibration of the heavy hammer, the air supply assembly can supply air to the connecting groove, so that the side wall of the arc-shaped cavity expands, the cushion and the cable fit more closely, and particles in the air are prevented from entering the gap between the cable and the cushion, thereby improving the fixing effect of the bracket and the cable while protecting the cushion and the cable, and preventing the cable and the cushion from being damaged due to friction;

[0028] (2) The excess gas in the arc cavity can be discharged into the arc groove through the pressure relief valve, and then discharged through the semicircular groove, so that the particles on the surface of the cable can be impacted to prevent the particles from entering the gap between the buffer pad and the cable, further improving the protection effect of the cable and the buffer pad;

[0029] (3) It can generate heat when the weight shakes up and down, thereby heating the cushion. In winter, it ensures the elasticity of the cushion and ensures that the cushion can deform.

[0030] (4) The present application enhances the sealing effect, protects the cushion, reduces the maintenance frequency and reduces the maintenance cost during the entire operation process. In the present application, the cushion is protected by heating, thereby reducing the frequency of replacing the cushion. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the connection between the bracket and the cable of the present invention;

[0032] Figure 2 is a structural schematic diagram of a cross-sectional view of the protective cover of the present invention;

[0033] Figure 3 This is a schematic diagram of the combined structure of the buffer pad and the bracket of the present invention;

[0034] Figure 4 is a schematic cross-sectional structural diagram of a buffer pad of the present invention;

[0035] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0036] Figure 6 It is a schematic cross-sectional structural diagram of the sleeve of the present invention;

[0037] Figure 7 It is a schematic diagram of the combined structure of the mounting rod and the spoiler of the present invention.

[0038] Description of the numbers in the figure:

[0039] 1. Bracket; 2. Twisted wire; 3. Heavy hammer; 4. Pressure plate; 5. U-bolt; 6. Buffer pad; 7. Arc cavity; 8. Connecting groove; 9. Arc groove; 10. Pressure relief valve; 11. Semicircular groove; 12. Sleeve; 13. Elastic membrane; 14. Counterweight; 15. Inlet valve; 16. Exhaust valve; 17. Conduit; 18. First air hole; 19. Elastic rope; 20. Spoiler; 21. Mounting rod; 22. Spoiler; 23. Bump; 24. Protective cover; 25. Slide; 26. Gantry; 27. Metal rod; 28. Resistance wire; 29. ​​Oblique rod; 30. Elastic bellows; 31. Second air hole; 32. Memory alloy wire; 33. Heat conducting rod; 34. Insulation board. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0041] Embodiment 1:

[0042] See also Figures 1 to 7 A cable protection hardware for electric power engineering, comprising a bracket 1, a stranded wire 2 is arranged on the bracket 1, and two stranded wires 2 are symmetrically arranged on the bracket 1, and a weight 3 is arranged at the end of each stranded wire 2;

[0043] M=0.4*d 2 -2.2;

[0044] 5≤M≤20;

[0045] Wherein, M is the mass of the weight 3, and the unit of M is kilogram;

[0046] d is the outer diameter of the cable, which is a preset value, and the unit of d is millimeters;

[0047] It also includes a semicircular pressing plate 4 and a U-shaped bolt 5. The pressing plate 4 is detachably connected to the bracket 1. The U-shaped bolt 5 is used to fix the pressing plate 4 on the bracket 1. The bracket 1 is provided with a semicircular wire groove, and the wire groove is used to place the cable. After the cable is placed in the wire groove, the pressing plate 4 is fixed to the bracket 1 by the U-shaped bolt 5, so that the bracket 1 and the cable can be fixed together;

[0048] The pressure plate 4 and the side wall of the cable trough are both provided with a buffer pad 6 made of elastic material. The buffer pad 6 capable of deformation can improve the fixing effect of the cable.

[0049] An arc-shaped cavity 7 is provided on the buffer pad 6, and an arc-shaped connecting groove 8 connected with the arc-shaped cavity 7 is provided on the side wall of the buffer pad 6. The connecting groove 8 is used to connect the arc-shaped cavities 7 on the two buffer pads 6. Therefore, when gas is injected into one of the connecting grooves 8, the air flow can flow into each arc-shaped cavity 7 connected with the connecting groove 8. The weight 3 is provided with an air supply component that cooperates with the connecting groove 8; when the air supply component supplies air to the connecting groove 8, the air pressure in the arc-shaped cavity 7 connected with the connecting groove 8 increases, and the side wall of the arc-shaped cavity 7 expands at this time. At this time, the buffer pad 6 is in closer contact with the cable, thereby improving the fixing effect of the cable and the bracket 1, improving the stability and safety of the device, preventing the cable and the buffer pad 6 from rubbing against each other, and playing a role in protecting the cable and the buffer pad 6; at the same time, it can prevent impurities from entering the gap between the buffer pad 6 and the cable during the vibration of the cable, playing a role in preventing the buffer pad 6 or the outer wall of the cable from being worn, and improving the protection effect of the buffer pad 6 and the cable;

[0050] An arc groove 9 is provided on the inner side wall of the buffer pad 6, and a pressure relief valve 10 connected to the arc groove 9 is embedded on the side wall of the arc cavity 7. Therefore, when the cable vibrates and causes the air pressure in the arc cavity 7 to continue to rise, the arc cavity 7 is depressurized through the pressure relief valve 10. At this time, the arc groove 9 is filled with gas. A semicircular groove 11 is provided on the side wall of the arc groove 9 away from the arc cavity 7. The distance between the semicircular groove 11 and the side wall of the cable is 1-2 mm. Therefore, the gas in the arc groove 9 will be discharged through the gap between the semicircular groove 11 and the outer wall of the cable. The cushion pad 6 is provided with a stirring component which cooperates with the arc groove 9, so the semicircular groove 11 can be evenly exhausted under the action of the stirring component, ensuring that the sand particles can be impacted by the airflow when on the cushion pad 6 and the cable surface, thereby preventing the sand particles from being stuck between the cable and the side wall of the semicircular groove 11.

[0051] like Figure 6As shown, the air supply assembly includes a sleeve 12 of a heat-insulating material embedded in the weight 3, an elastic membrane 13 is horizontally fixedly installed in the sleeve 12, and a counterweight 14 is embedded on the elastic membrane 13. Therefore, during the swinging process of the weight 3, the counterweight 14 will pull the elastic membrane 13 to deform. An inlet valve 15 and an exhaust valve 16 are embedded on the side wall of the sleeve 12. Therefore, when the counterweight 14 moves toward the direction close to the conduit 17, the gas in the space between the elastic membrane 13 and the conduit 17 in the sleeve 12 will pass through. When the counterweight 14 moves away from the conduit 17, the space between the elastic membrane 13 and the conduit 17 in the sleeve 12 draws air from the outside through the intake valve 15, thereby ensuring that the sleeve 12 can continue to exhaust air outward through the exhaust valve 16. A conduit 17 extending into the connecting groove 8 is installed on the output end of the exhaust valve 16. The gas discharged from the exhaust valve 16 enters the conduit 17 and finally flows into the connecting groove 8, thereby supplying air to the connecting groove 8.

[0052] like Figure 5 As shown, the stirring component includes a first air hole 18 opened on the side wall of the arc groove 9, the first air hole 18 is funnel-shaped, and the output end of the pressure relief valve 10 is connected to the first air hole 18, so the gas discharged from the pressure relief valve 10 will be discharged through the first air hole 18, and the diameter of the first air hole 18 close to the arc groove 9 is larger than the diameter close to the arc cavity 7. An elastic rope 19 is fixedly installed in the first air hole 18, and a spoiler block 20 is fixedly installed on the elastic rope 19. The gas discharged from the pressure relief valve 10 will impact the spoiler block 20. Under the action of the elastic rope 19, the spoiler block 20 will break away from contact with the first air hole 18 and shake. At this time, the side wall of the spoiler block 20 in the shaking state can change the flow direction of the gas discharged from the first air hole 18, so that the gas discharged from the first air hole 18 can quickly fill the entire arc groove 9, and then the semicircular groove 11 is evenly exhausted.

[0053] like Figure 5 , Figure 7 As shown, a mounting rod 21 is horizontally rotatably mounted on the side wall of the spoiler block 20, and a spoiler plate 22 is evenly and obliquely fixedly mounted on the mounting rod 21; in the process of airflow impacting the spoiler block 20, part of the airflow contacts the spoiler plate 22, and at this time, under the action of the airflow impact force, the spoiler plate 22 drives the mounting rod 21 to rotate, further expanding the diffusion range of the gas discharged from the first air hole 18, and further improving the rate at which the gas is evenly distributed in the arc groove 9.

[0054] like Figure 5As shown, arc-shaped protrusions 23 are evenly provided on the side wall of the arc groove 9 away from the first air hole 18. Therefore, the spoiler 22 will intermittently hit the protrusion 23 during the rotation process. At this time, the protrusion 23 transmits the impact force to the buffer pad 6, so that the sand on the surface of the buffer pad 6 can be bounced off, reducing the probability of sand falling onto the cable surface, thereby preventing the sand on the cable surface from entering the connection between the cable and the buffer pad 6. At the same time, the buffer pad 6 is prone to cracks when exposed to the outside for a long time. Therefore, bouncing the particles away can prevent the particles from entering the cracks, thereby improving the protection effect of the buffer pad 6; the protrusion 23 is made of elastic material, so when the spoiler 22 hits the protrusion 23, under the action of the reaction force, the spoiler 22 will be bounced off, thereby driving the spoiler block 20 to shake irregularly, further improving the spoiler effect.

[0055] like Figure 2 As shown, since the stranded wire 2 is made of a plurality of metal wires twisted together, there are small gaps between the metal wires of the stranded wire 2, and the metal wires of the stranded wire 2 will rub against each other during the vibration of the heavy hammer 3;

[0056] The stranded wire 2 and the conduit 17 are jointly covered with a protective cover 24 made of elastic material, and the two ends of the protective cover 24 are respectively fixedly connected to the side walls of the weight 3 and the side walls of the bracket 1. Therefore, in windy weather, it can prevent particulate matter in the air from contacting the stranded wire 2, thereby protecting the stranded wire 2. The protective cover 24 is made of heat-insulating material, so the heat generated by the friction between the metal wires that make up the stranded wire 2 during the vibration of the weight 3 will be transferred to the conduit 17, thereby increasing the temperature of the gas in the conduit 17. Therefore, by making the higher temperature gas contact with the buffer pad 6 made of elastic material, the buffer pad 6 can be heated, thereby preventing the buffer pad 6 made of elastic material from hardening and becoming brittle, thereby ensuring that the buffer pad 6 can maintain flexibility and elasticity, that is, ensuring that the buffer pad 6 can expand.

[0057] like Figure 6 As shown, when the whole device is installed, the stranded wire 2 is parallel to the cable, so when the cable is energized, an induced magnetic field is generated around the cable;

[0058] A slide groove 25 is provided on the inner bottom wall of the sleeve 12, and a gantry 26 is slidably installed in the slide groove 25, and a driving mechanism cooperating with the gantry 26 is provided in the sleeve 12; during the swinging process of the heavy hammer 3, the gantry 26 is driven by the driving mechanism to move along the slide groove 25, and at this time, the gantry 26 also has a displacement in the horizontal direction; a metal rod 27 and a resistance wire 28 are provided on the horizontal section of the gantry 26, and the metal rod 27 and the resistance wire 28 are connected in series. Therefore, during the movement of the gantry 26 along the slide groove 25, the gantry 26 will move in the horizontal direction, and the metal rod 27 cuts the magnetic flux lines at this time. Among them, the induced magnetic field generated around the energized cable is a prior art and will not be repeated; therefore, the resistance wire 28 connected in series with the metal rod 27 will heat up, thereby improving the heating effect of the gas discharged from the sleeve 12, and in winter, the elasticity of the buffer pad 6 is guaranteed, which plays a role in ensuring that the buffer pad 6 can be deformed.

[0059] like Figure 6 As shown, the driving mechanism includes an inclined rod 29 fixedly mounted on the bottom wall of the counterweight 14, and the inclined rod 29 cooperates with the horizontal section of the gantry 26. During the up and down swinging of the weight 3, the counterweight 14 will intermittently approach the inner bottom wall of the sleeve 12 under the action of inertia. When the counterweight 14 approaches the inner bottom wall of the sleeve 12, under the action of the inclined rod 29, the inclined rod 29 applies a horizontal thrust to the gantry 26, so the gantry 26 will move in the horizontal direction, and an elastic bellows 30 is provided between the gantry 26 and the side wall of the slide chute 25; at this time, the elastic bellows 30 is deformed, and when the counterweight 14 is away from the inner bottom wall of the sleeve 12, the pressure applied by the inclined rod 29 to the gantry 26 is reduced, and at this time, the elastic bellows 30 pulls the gantry 26 to reset.

[0060] like Figure 6 As shown, a second air hole 31 is opened on the elastic bellows 30, so the elastic bellows 30 absorbs air through the second air hole 31 during the stretching process, and when the elastic bellows 30 recovers, the gas therein is discharged through the second air hole 31. The second air hole 31 cooperates with the resistance wire 28, so the gas discharged from the second air hole 31 will impact the air around the resistance wire 28, increasing the contact probability between the gas in the sleeve 12 and the resistance wire 28, improving the heat exchange effect, thereby improving the utilization rate of the heat generated by the resistance wire 28, ensuring that the heat generated by the resistance wire 28 can be transferred to the buffer pad 6 in time, thereby improving the heating effect of the buffer pad 6.

[0061] like Figure 3 As shown, the buffer pad 6 is made of rubber material. Since the rubber material has good weather resistance, it can maintain stable performance in harsh environments such as light and rain. At the same time, rubber also has a certain corrosion resistance and can resist the erosion of chemical substances such as acids and alkalis. It is suitable for various complex outdoor environments. Therefore, the buffer pad 6 made of rubber material plays a role in improving the stability of the device.

[0062] like Figure 6 As shown, a mounting hole is provided on the weight 3, a hole connected to the mounting hole is provided on the side wall of the sleeve 12, and a memory alloy wire 32 is installed on the side wall of the mounting hole; since the weight 3 is made of metal, the thermal conductivity is good, so when the external environment temperature is high, the memory alloy wire 32 is in an extended state, and when the external environment temperature is low, the memory alloy wire 32 is in a contracted state, a heat-conducting rod 33 connected to the outside is embedded on the bottom wall of the sleeve 12, and a heat-insulating plate 34 cooperating with the heat-conducting rod 33 is slidably installed on the inner wall of the sleeve 12, and the heat-insulating plate 34 is connected to the memory alloy wire 32, so In the summer when the temperature is high, the memory alloy wire 32 in the extended state drives the insulation plate 34 to break contact with the surface of the heat-conducting rod 33, so that the internal temperature of the sleeve 12 is the same as the outside temperature. During the exhaust process of the sleeve 12, the buffer pad 6 can be prevented from being softened due to excessive temperature, thereby improving the fixing effect of the bracket 1 and the cable; in winter, the memory alloy wire 32 in the contracted state drives the insulation plate 34 to move to the surface of the heat-conducting rod 33, thereby preventing the heat in the sleeve 12 from dissipating, improving the utilization rate of the heat of the resistance wire 28, and ensuring that the buffer pad 6 has sufficient elasticity.

[0063] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable protection fitting for electric power engineering, comprising a bracket (1), a stranded wire (2) being arranged on the bracket (1), and a weight (3) being arranged at the end of the stranded wire (2); Features: It also includes a pressing plate (4) and a U-shaped bolt (5), wherein the pressing plate (4) is detachably connected to the bracket (1), and the bracket (1) is provided with a wire groove; The pressure plate (4) and the side wall of the wire trough are both installed with a buffer pad (6) made of elastic material; The buffer pad (6) is provided with an arc-shaped cavity (7), and the side wall of the buffer pad (6) is provided with an arc-shaped connecting groove (8) connected with the arc-shaped cavity (7), and the connecting groove (8) is used to connect the arc-shaped cavities (7) on the two buffer pads (6), and the weight (3) is provided with an air supply component matched with the connecting groove (8); An arc-shaped groove (9) is provided on the inner side wall of the buffer pad (6), a pressure relief valve (10) connected to the arc-shaped groove (9) is embedded on the side wall of the arc-shaped cavity (7), a semicircular groove (11) is provided on the side wall of the arc-shaped groove (9) away from the arc-shaped cavity (7), and a stirring component cooperating with the arc-shaped groove (9) is provided on the buffer pad (6).

2. The cable protection fitting for electric power engineering according to claim 1, characterized in that: The air supply assembly comprises a sleeve (12) embedded in a weight (3), an elastic membrane (13) fixedly installed in the sleeve (12), a counterweight (14) embedded on the elastic membrane (13), an intake valve (15) and an exhaust valve (16) embedded on the side wall of the sleeve (12), and a conduit (17) extending into the connecting groove (8) is installed on the output end of the exhaust valve (16).

3. The cable protection fitting for electric power engineering according to claim 2, characterized in that: The stirring assembly comprises a first air hole (18) formed on a side wall of the arc-shaped groove (9), the first air hole (18) being funnel-shaped, the output end of the pressure relief valve (10) being connected to the first air hole (18), and the diameter of the first air hole (18) close to the arc-shaped groove (9) is larger than the diameter of the first air hole (18) close to the arc-shaped cavity (7), an elastic rope (19) is fixedly installed in the first air hole (18), and a spoiler (20) is fixedly installed on the elastic rope (19).

4. The cable protection fitting for electric power engineering according to claim 3, characterized in that: A mounting rod (21) is mounted horizontally and rotatably on the side wall of the spoiler block (20), and a spoiler sheet (22) is evenly and obliquely fixedly mounted on the mounting rod (21).

5. The cable protection fitting for electric power engineering according to claim 4, characterized in that: Arc-shaped protrusions (23) are evenly arranged on the side wall of the arc-shaped groove (9) away from the first air hole (18), and the protrusions (23) are made of elastic material.

6. The cable protection fitting for electric power engineering according to claim 5, characterized in that: The stranded wire (2) and the conduit (17) are jointly covered with a protective sleeve (24) made of elastic material, and the two ends of the protective sleeve (24) are respectively fixedly connected to the side wall of the weight (3) and the side wall of the bracket (1), and the protective sleeve (24) is made of heat-insulating material.

7. The cable protection fitting for electric power engineering according to claim 6, characterized in that: A slide groove (25) is provided on the inner bottom wall of the sleeve (12), a gantry (26) is slidably installed in the slide groove (25), and a driving mechanism cooperating with the gantry (26) is provided in the sleeve (12); A metal rod (27) and a resistance wire (28) are provided on the horizontal section of the gantry (26), and the metal rod (27) and the resistance wire (28) are connected in series.

8. The cable protection hardware for electric power engineering according to claim 7, characterized in that: The driving mechanism comprises an inclined rod (29) fixedly mounted on the bottom wall of the counterweight block (14), the inclined rod (29) being matched with a horizontal section of a gantry (26), and an elastic bellows (30) being provided between the gantry (26) and a side wall of a slide groove (25).

9. The cable protection fitting for electric power engineering according to claim 8, characterized in that: The elastic bellows (30) is provided with a second air hole (31), and the second air hole (31) cooperates with the resistance wire (28).

10. The cable protection fitting for electric power engineering according to claim 9, characterized in that: The weight (3) is provided with a mounting hole, the side wall of the sleeve (12) is provided with a hole connected to the mounting hole, and a memory alloy wire (32) is installed on the side wall of the mounting hole; a heat conducting rod (33) connected to the outside is embedded on the bottom wall of the sleeve (12), and a heat insulation plate (34) matched with the heat conducting rod (33) is slidably installed on the inner wall of the sleeve (12), and the heat insulation plate (34) is connected to the memory alloy wire (32).

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