Temperature detection device for high-voltage circuit breaker

Abstract

The invention relates to the technical field of electric power monitoring, and discloses a high-voltage circuit breaker temperature detection device, which comprises an installation block, a first containing cavity is formed in the installation block, an opening is formed in the lower end of the installation block, and the opening is communicated with the first containing cavity; the first attaching assembly comprises an attaching spring and a first sliding block, the first sliding block is arranged in the first containing cavity in a sliding mode in the vertical direction, and the upper end and the lower end of the attaching spring are connected with the upper end of the first containing cavity and the upper end face of the first sliding block correspondingly; the temperature sensor is arranged at the lower end of the first sliding block, and the lower end of the temperature sensor protrudes out of the opening; the second attaching assembly comprises a binding belt, an inflation part and a plurality of resistance-increasing air bags, the first end of the binding belt is fixedly connected to the mounting block, the second end of the binding belt is detachably mounted on the mounting block, the resistance-increasing air bags are arranged on the inner side of the binding belt at intervals, and the inflation part is arranged on the mounting block and communicated with the resistance-increasing air bags. The high-voltage circuit breaker temperature detection device provided by the invention can ensure that the influence of vibration on the contact arm is reduced in the vibration process of the contact arm, can stably monitor the temperature of the contact arm, and is accurate in monitoring data.

Description

Technical Field

[0001] The invention relates to the technical field of power monitoring, and in particular to a temperature monitoring device for a high-voltage circuit breaker. Background Art

[0002] High-voltage circuit breakers refer to high-voltage electrical appliances with a rated voltage of 3kV or above, which are used to cut off or connect loaded or unloaded circuits, as well as faulty circuits. Due to oxidation, dirtiness, aging of equipment, and poor contact between the moving and static contacts, the contact arms and other connection parts of high-voltage circuit breakers may heat up. At present, power maintenance personnel often install temperature sensors on the surface of high-end circuit breaker contact arms to monitor the temperature in real time.

[0003] The prior art discloses a temperature measuring device for a high-voltage circuit breaker (authorization announcement number is CN220819244U), and the annular fastener also includes an upper annular plate and a lower annular plate. The upper annular plate includes a left arc-shaped plate segment and a right arc-shaped plate segment, one end of the left arc-shaped plate segment and one end of the right arc-shaped plate segment are both hinged to the rectangular shell, a first horizontal plate is horizontally arranged at the other end of the left arc-shaped plate segment, the other end of the right arc-shaped plate segment is hinged to one end of the lower annular plate, and a second horizontal plate is horizontally arranged at the other end of the lower annular plate, wherein a through groove is provided in the first horizontal plate and the second horizontal plate. A threaded rod is hingedly arranged in the through groove of the second horizontal plate, and a nut is threadedly connected through the through groove of the first horizontal plate, and the nut is butt-jointed with the first horizontal plate. At least two toggle rods are arranged around the nut. The above structure enables the above annular fastener to be disassembled from the contact arm of the high-voltage circuit breaker.

[0004] Since the contact arm of the high-voltage circuit breaker needs to be quickly separated and connected during the opening and closing operation, vibration will be generated during the high-speed and high-intensity movement of the contact arm. However, the above-mentioned device only relies on a nut and a threaded rod to lock the temperature sensor on the surface of the contact arm of the high-voltage circuit breaker. Under the action of vibration, the probability of the nut loosening increases, making it difficult to ensure that the temperature sensor can be relatively stably locked on the surface of the contact arm of the high-voltage circuit breaker. The temperature monitoring data is not accurate enough and the monitoring effect is poor. Summary of the invention

[0005] The purpose of the present invention is to provide a temperature monitoring device for a high-voltage circuit breaker, which can ensure that the influence of vibration on the contact arm is reduced during the vibration process of the contact arm, can stably monitor the temperature of the contact arm, and the monitoring data is accurate.

[0006] In order to achieve the above object, the present invention provides a high voltage circuit breaker temperature detection device, comprising: A mounting block, wherein the mounting block has a first cavity inside, and an opening is provided at the lower end of the mounting block, and the opening is communicated with the first cavity; A first laminating component, the first laminating component comprises a laminating spring and a first slider, the first slider is slidably disposed in the first cavity along the up-down direction, and the upper and lower ends of the laminating spring are respectively connected to the upper end of the first cavity and the upper end surface of the first slider; A temperature sensor, wherein the temperature sensor is disposed at a lower end of the first slider, and the lower end of the temperature sensor protrudes from the opening; The second fitting component includes a restraint belt, an inflatable part and a plurality of resistance-enhancing airbags, the first end of the restraint belt is fixedly connected to the mounting block, the second end of the restraint belt is detachably mounted on the mounting block, a plurality of resistance-enhancing airbags are arranged at intervals on the inner side of the restraint belt, the inflatable part is arranged on the mounting block, and the air supply port of the inflatable part is communicated with the resistance-enhancing airbags.

[0007] Furthermore, the mounting block comprises a second cavity inside, the second cavity is located above the first cavity, the second cavity is not connected to the first cavity, the inflation portion comprises a pressure-regulating airbag, the pressure-regulating airbag is accommodated in the second cavity, the first end of the restraint belt is fixedly connected to the rear end of the mounting block, the second end of the restraint belt is detachably mounted on the front end of the mounting block, an air guide channel is provided inside the restraint belt, the air guide channel is connected to the resistance-enhancing airbag, the air guide channel has an extension section, an air guide port is provided at the rear end of the mounting block, the extension section passes through the restraint belt and passes through the air guide port and is connected to the pressure-regulating airbag, the second fitting component also comprises a second slider and a push rod, the second slider is slidably arranged in the second cavity along the front-to-back direction, and the second slider is located at the front end of the pressure-regulating airbag, the push rod extends along the front-to-back direction, the rear end of the push rod is connected to the second slider, and the front end of the push rod passes through the second cavity.

[0008] Furthermore, the high-voltage circuit breaker temperature monitoring device also includes an adjustment component, which includes a screw and a threaded sleeve, the screw extends in the front-to-back direction, the rear end of the screw is connected to the front end surface of the mounting block, the threaded sleeve is engaged with the screw, the second end of the restraining band has a mounting ring, the mounting ring is sleeved on the screw, the threaded sleeve is located in front of the mounting ring, and the front end of the push rod abuts against the rear end surface of the mounting ring.

[0009] Furthermore, the push rod is in the shape of a U-shaped sheet and is arranged around the outer circumference of the screw rod.

[0010] Furthermore, the interior of the screw rod has a third cavity, the third cavity is provided with an anti-slip groove, the threaded sleeve is provided with an insertion rod extending in the front-to-back direction, the insertion rod is slidably provided with a block that cooperates with the anti-slip groove, and the adjustment assembly also includes an unlocking part, the power output end of the unlocking part is connected to the block, and is used to drive the block to slide.

[0011] Furthermore, a plurality of anti-slip grooves are arranged side by side in the circumferential direction of the third cavity, and the anti-slip grooves extend in the front-to-back direction. When viewed in the front-to-back direction, the anti-slip groove has a first surface and a second surface, and the extension direction of the first surface is consistent with the radial direction of the screw rod, the inner edge of the second surface is connected to the inner edge of the first surface of the anti-slip groove, and the outer edge of the second surface is connected to the outer edge of the first surface of the anti-slip groove adjacent to the anti-slip groove. A fourth cavity is provided inside the insertion rod, and the clamping block includes a main body and a clamping joint arranged on the main body, and the main body is slidably arranged in the fourth cavity along the radial direction of the insertion rod, and the clamping joint passes through the fourth cavity, passes through the insertion rod, and is shape-fittingly clamped in the anti-slip groove.

[0012] Furthermore, the front end of the insertion rod has a cover body, the rear end face of the cover body is arranged at the front end of the threaded sleeve, and when observed along the front-to-back direction, the cover body covers the internal thread of the threaded sleeve. The cover body is a hexagonal prism, and the unlocking part is arranged on the insertion rod.

[0013] Furthermore, the unlocking part includes a transmission rope and a locking spring, the interior of the insertion rod has a fifth cavity extending in the front-to-back direction, the fifth cavity is located at the axis of the insertion rod, and the fourth cavity is located on the outside of the fifth cavity, the transmission rope includes a main section and a branch section arranged at the rear end of the main section, the main section is accommodated in the fifth cavity, the branch section passes from the fifth cavity into the fourth cavity, the end of the branch section is connected to the main body, the locking spring is sleeved on the outer periphery of the branch section, and the two ends of the locking spring are respectively connected to the main body and the side wall of the fourth cavity close to the fifth cavity.

[0014] Furthermore, the cover body also has a sixth cavity and a accommodating groove, the extension direction of the sixth cavity is perpendicular to the extension direction of the fifth cavity, the sixth cavity is connected to the fifth cavity, the sixth cavity and the fifth cavity together define a T-shaped cavity, the accommodating groove is opened on the side wall of the cover body, an outer end of the sixth cavity is connected to the accommodating groove, the unlocking part also includes an unlocking block, the unlocking block has an unlocking rod, the unlocking rod is slidably inserted in the sixth cavity, the unlocking block is slidably inserted in the accommodating groove, and the unlocking rod is connected to the front end of the main section.

[0015] Compared with the prior art, a temperature monitoring device for a high-voltage circuit breaker according to an embodiment of the present invention has the following beneficial effects: a restraining band is wound around the outer periphery of a contact arm, a temperature sensor located at the lower end of a mounting block abuts against the contact arm, a fitting spring applies elastic force to a first slider, so that the temperature sensor located at the lower end of the first slider is closely attached to the contact arm, an inflatable portion inflates the resistance-enhancing airbag on the restraining band, so that the restraining band is in a tensioned state, so that the temperature sensor is further closely attached to the contact arm, and because the resistance-enhancing airbag has a certain flexibility, it can absorb the vibration of the contact arm to a certain extent, and when the restraining band is in a tensioned state, the friction between the restraining band and the contact arm is greater, so as to prevent the temperature monitoring device for a high-voltage circuit breaker from being displaced during monitoring, thereby ensuring that the temperature of the contact arm can be stably monitored and the monitoring data is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a high-voltage circuit breaker temperature monitoring device installed on a contact arm according to an embodiment of the present invention; Figure 2 1 is a schematic diagram of the overall structure of a temperature monitoring device for a high-voltage circuit breaker according to an embodiment of the present invention; Figure 3 is a structural cross-sectional view of a temperature monitoring device for a high-voltage circuit breaker according to an embodiment of the present invention; Figure 4 2 is a schematic structural diagram of an air guide channel and a resistance-enhancing airbag of a temperature monitoring device for a high-voltage circuit breaker according to an embodiment of the present invention; Figure 5 1 is a schematic diagram of the overall structure of an adjustment component of a temperature monitoring device for a high-voltage circuit breaker according to an embodiment of the present invention; Figure 6 is a structural cross-sectional view of an adjustment component of a temperature monitoring device for a high-voltage circuit breaker according to an embodiment of the present invention; Figure 7 is a structural cross-sectional view of another cut surface of the adjustment component of the temperature monitoring device of a high-voltage circuit breaker according to an embodiment of the present invention; Figure 8 yes Figure 7 A magnified view of point A; Fig. 9 is an exploded view of a screw and an unlocking portion of a temperature monitoring device for a high-voltage circuit breaker according to an embodiment of the present invention; In the figure, 1, mounting block; 101, first cavity; 102, opening; 103, second cavity; 104, air guide port; 2. First laminating component; 201. Laminating spring; 202. First sliding block; 3. Temperature sensor; 4. second fitting component; 401. restraint belt; 4011. first end; 4012. second end; 4013. mounting ring; 4014. air guide channel; 402. inflatable part; 4021. pressure regulating airbag; 403. resistance increasing airbag; 404. second slider; 405. push rod; 5. adjusting component; 501. screw rod; 5011. third cavity; 5012. anti-slip groove; 50121. first surface; 50122. second surface; 50 2. Threaded sleeve; 503. Insert rod; 5031. Block; 50311. Main body; 50312. Card joint; 5032. Fourth cavity; 5033. Fifth cavity; 504. Unlocking part; 5041. Transmission rope; 50411. Main section; 50412. Branch section; 5042. Locking spring; 5043. Unlocking block; 5044. Unlocking rod; 505. Cover body; 5051. Sixth cavity; 5052. Accommodation groove. DETAILED DESCRIPTION

[0017] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "lateral", "longitudinal" and the like used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only used to facilitate the description of the present invention and simplify the description, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0019] In the description of the present invention, the terms "provided with", "set", "connected", and "placed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0021] The technical solution of the present invention is further described below in conjunction with embodiments and drawings.

[0022] like Figure 1-9 As shown, a high-voltage circuit breaker temperature detection device according to an embodiment of the present invention comprises: A mounting block 1, wherein the mounting block 1 has a first cavity 101 therein, and an opening 102 is provided at the lower end of the mounting block 1, and the opening 102 is communicated with the first cavity 101; The first laminating component 2 includes a laminating spring 201 and a first slider 202. The first slider 202 is slidably disposed in the first cavity 101 along the up-down direction. The upper and lower ends of the laminating spring 201 are respectively connected to the upper end of the first cavity 101 and the upper end surface of the first slider 202. The temperature sensor 3 is disposed at the lower end of the first slider 202, and the lower end of the temperature sensor 3 protrudes from the opening 102; The second fitting component 4 includes a restraining belt 401, an inflatable part 402 and a plurality of resistance-enhancing airbags 403. The first end 4011 of the restraining belt 401 is fixedly connected to the mounting block 1, and the second end 4012 of the restraining belt 401 is detachably mounted on the mounting block 1. The plurality of resistance-enhancing airbags 403 are arranged at intervals on the inner side of the restraining belt 401. The inflatable part 402 is arranged on the mounting block 1, and the air supply port of the inflatable part 402 is connected to the resistance-enhancing airbag 403.

[0023] Based on the above technical solution, the restraining belt 401 is wrapped around the outer periphery of the contact arm, the temperature sensor 3 located at the lower end of the mounting block 1 is in contact with the contact arm, and the fitting spring 201 applies elastic force to the first slider 202, so that the temperature sensor 3 located at the lower end of the first slider 202 is tightly attached to the contact arm, and the inflatable part 402 inflates the resistance-increasing airbag 403 on the restraining belt 401, so that the restraining belt 401 is in a tensioned state, so that the temperature sensor 3 is preferably in close contact with the contact arm, and because the resistance-increasing airbag 403 has a certain flexibility, it can absorb the vibration of the contact arm to a certain extent, and when the restraining belt 401 is in a tensioned state, the friction between the restraining belt 401 and the contact arm is greater, so as to prevent the high-voltage circuit breaker temperature monitoring device from being displaced during monitoring, thereby ensuring that the temperature of the contact arm can be stably monitored and the monitoring data is accurate.

[0024] Preferably, the mounting block 1 has a second cavity 103 inside, the second cavity 103 is located above the first cavity 101, the second cavity 103 is not connected to the first cavity 101, the inflatable portion 402 includes a pressure regulating airbag 4021, the pressure regulating airbag 4021 is accommodated in the second cavity 103, the first end 4011 of the restraint belt 401 is fixedly connected to the rear end of the mounting block 1, the second end 4012 of the restraint belt 401 is detachably mounted on the front end of the mounting block 1, and the restraint belt 401 is provided with an air guide channel 4014 inside, and the air guide channel 4014 is connected to the resistance-enhancing airbag 403. The air guide channel 4014 has an extension section, and an air guide port 104 is opened at the rear end of the mounting block 1. The extension section passes through the restraint belt 401 and passes through the air guide port 104 and is connected with the pressure-regulating airbag 4021. The second fitting component 4 also includes a second slider 404 and a push rod 405. The second slider 404 is slidably arranged in the second cavity 103 along the front-to-back direction, and the second slider 404 is located at the front end of the pressure-regulating airbag 4021. The push rod 405 extends along the front-to-back direction, and the rear end of the push rod 405 is connected to the second slider 404, and the front end of the push rod 405 passes through the second cavity 103.

[0025] Based on the above technical solution, the push rod 405 is pushed from front to back, and the push rod 405 pushes the second slider 404 to slide. The second slider 404 compresses the pressure-regulating airbag 4021 in the second cavity 103, and the air in the pressure-regulating airbag 4021 is distributed to each resistance-enhancing airbag 403 through the air guide port 104 and the air guide channel 4014, so that each resistance-enhancing airbag 403 bulges, and the restraint belt 401 is close to the contact arm.

[0026] The pressure-regulating airbag 4021 is built into the second chamber 103 to prevent the pressure-regulating airbag 4021 from being exposed to the outside, thereby preventing the pressure-regulating airbag 4021 from being damaged by the external environment.

[0027] More preferably, the high-voltage circuit breaker temperature monitoring device also includes an adjusting component 5, the adjusting component 5 includes a screw 501 and a threaded sleeve 502, the screw 501 extends in the front-to-back direction, the rear end of the screw 501 is connected to the front end face of the mounting block 1, the threaded sleeve 502 is meshed on the screw 501, the second end 4012 of the restraining belt 401 has a mounting ring 4013, the mounting ring 4013 is sleeved on the screw 501, the threaded sleeve 502 is located in front of the mounting ring 4013, and the front end of the push rod 405 abuts against the rear end face of the mounting ring 4013.

[0028] Based on the above technical solution, firstly, the mounting ring 4013 on the second end 4012 of the restraint belt 401 is sleeved on the screw 501, and then the threaded sleeve 502 is screwed on the screw 501. On the path where the threaded sleeve 502 and the screw 501 are screwed together, the threaded sleeve 502 first contacts the mounting ring 4013, and then the mounting ring 4013 is abutted against the push rod 405. Finally, the push rod 405 can be pushed into the second cavity 103 to make the resistance-enhancing airbag 403 bulge.

[0029] The screw connection between the screw 501 and the threaded sleeve 502 can ensure that any position of the screw 501 and the threaded sleeve 502 can remain relatively still, that is, the stability of the force applied by the resistance-enhancing airbag 403 to the contact arm can be ensured, and the screw connection between the screw 501 and the threaded sleeve 502 facilitates the installation and disassembly of the restraint belt 401.

[0030] More preferably, the push rod 405 is a U-shaped sheet, and the push rod 405 is arranged around the outer periphery of the screw 501. The push rod 405 is a U-shaped sheet, which can partially cover and protect the screw 501 exposed to the outside air, so as to reduce the possibility of corrosion of the screw 501 by impurities such as dust and water vapor, and extend its service life.

[0031] More preferably, the screw rod 501 has a third cavity 5011 inside, and an anti-slip groove 5012 is provided in the third cavity 5011. The threaded sleeve 502 is provided with a plug rod 503 extending in the front-back direction, and a block 5031 that cooperates with the anti-slip groove 5012 is slidably provided on the plug rod 503. The adjustment component 5 also includes an unlocking part 504, and the power output end of the unlocking part 504 is connected to the block 5031 for driving the block 5031 to slide. The block 5031 cooperates with the anti-slip groove 5012 to prevent unnecessary relative displacement between the screw rod 501 and the threaded sleeve 502 when the contact arm vibrates. The unlocking part 504 can drive the block 5031 to be engaged in the anti-slip groove 5012, or drive the block 5031 to be separated from the anti-slip groove 5012, so as to achieve locking and unlocking.

[0032] More preferably, a plurality of anti-slip grooves 5012 are arranged side by side in the circumferential direction of the third cavity 5011, and the anti-slip grooves 5012 extend along the front-to-back direction. When viewed along the front-to-back direction, the anti-slip grooves 5012 have a first surface 50121 and a second surface 50122, and the extension direction of the first surface 50121 is consistent with the radial direction of the screw 501, and the inner side edge of the second surface 50122 is connected to the inner side edge of the first surface 50121 of the anti-slip groove 5012, and the outer side edge of the second surface 50122 is connected to the anti-slip groove The outer edge of the first surface 50121 of the anti-slip groove 5012 adjacent to 5012, a fourth cavity 5032 is provided inside the insertion rod 503, the clamping block 5031 includes a main body 50311 and a clamping joint 50312 arranged on the main body 50311, the main body 50311 is radially slidably arranged in the fourth cavity 5032 along the insertion rod 503, the clamping joint 50312 extends out from the fourth cavity 5032, passes through the insertion rod 503, and is shape-matched and clamped in the anti-slip groove 5012.

[0033] More preferably, the front end of the insertion rod 503 has a cover 505, the rear end face of the cover 505 is arranged at the front end of the threaded sleeve 502, and the cover 505 covers the internal thread of the threaded sleeve 502 when viewed in the front-to-back direction. The cover 505 is a hexagonal prism, and the unlocking portion 504 is arranged on the insertion rod 503. The cover 505 is a hexagonal prism, and the cover 505 can be used in conjunction with a wrench of corresponding specifications, so that the installation and disassembly between the threaded sleeve 502 and the screw 501 is more convenient.

[0034] More preferably, the unlocking portion 504 includes a transmission rope 5041 and a locking spring 5042, the interior of the insertion rod 503 has a fifth cavity 5033 extending along the front-to-back direction, the fifth cavity 5033 is located at the axis of the insertion rod 503, and the fourth cavity 5032 is located on the outside of the fifth cavity 5033, the transmission rope 5041 includes a main section 50411 and a branch section 50412 arranged at the rear end of the main section 50411, the main section 50411 is accommodated in the fifth cavity 5033, the branch section 50412 penetrates from the fifth cavity 5033 into the fourth cavity 5032, the end of the branch section 50412 is connected to the main body 50311, the locking spring 5042 is sleeved on the outer periphery of the branch section 50412, and the two ends of the locking spring 5042 are respectively connected to the main body 50311 and the side wall of the fourth cavity 5032 close to the fifth cavity 5033.

[0035] Specifically, the clamping joint 50312 is a wedge-shaped block, and the inclined surface of the wedge-shaped block corresponds to the second surface 50122.

[0036] Based on the above technical solution, when the threaded sleeve 502 is screwed onto the screw rod 501, the insertion rod 503 is inserted into the third cavity 5011, and the clamping joint 50312 is clamped with the anti-slip groove 5012. The threaded sleeve 502 and the screw rod 501 are in the screw connection path between them. The locking spring 5042 is always in a compressed state. The elastic force of the locking spring 5042 makes the clamping block 5031 have a tendency to move toward the anti-slip groove 5012. The inclined surface of the clamping joint 50312 is tightly attached to the second surface 50122 of the anti-slip groove 5012 and slides relatively. At this time, the clamping block 5031 moves away from the anti-slip groove 5012. Sliding forward, the locking spring 5042 contracts until the inclined surface of the clamping joint 50312 and the second surface 50122 are separated from each other. Driven by the elastic force of the locking spring 5042, the clamping joint 50312 falls into the anti-slip groove 5012 adjacent to the above-mentioned anti-slip groove 5012. At this time, the inclined surface of the clamping joint 50312 falls back onto the second surface 50122 of the adjacent anti-slip groove 5012 and is re-engaged. If the threaded sleeve 502 is screwed in the reverse direction, since the extension direction of the first surface 50121 is consistent with the radial direction of the screw rod 501, the threaded sleeve 502 is hindered and the threaded sleeve 502 can only be screwed in one direction.

[0037] The above structure can ensure that the threaded sleeve 502 and the screw rod 501 will not separate from each other under the vibration of the contact arm, thereby ensuring the connection strength between the two, thereby ensuring the bulging state of the resistance-enhancing airbag 403, and the restraint belt 401 can remain tensioned and stably fit on the outer periphery of the contact arm.

[0038] More preferably, the cover body 505 also has a sixth cavity 5051 and a accommodating groove 5052, the extension direction of the sixth cavity 5051 is perpendicular to the extension direction of the fifth cavity 5033, the sixth cavity 5051 is connected with the fifth cavity 5033, the sixth cavity 5051 and the fifth cavity 5033 are jointly defined to form a T-shaped cavity, the accommodating groove 5052 is opened on the side wall of the cover body 505, an outer end of the sixth cavity 5051 is connected with the accommodating groove 5052, the unlocking part 504 also includes an unlocking block 5043, the unlocking block 5043 has an unlocking rod 5044, the unlocking rod 5044 is slidably inserted in the sixth cavity 5051, the unlocking block 5043 is slidably inserted in the accommodating groove 5052, and the unlocking rod 5044 is connected to the front end of the main section 50411.

[0039] Based on the above technical solution, the unlocking block 5043 is pressed, and the unlocking block 5043 slides in the accommodating groove 5052, and the unlocking rod 5044 slides in the sixth accommodating cavity 5051, pulling the main section 50411 of the transmission rope 5041 to slide forward, and the main section 50411 drives the branch section 50412 to slide, overcoming the elastic force of the locking spring 5042 to pull the clamping block 5031 to slide in the direction away from the anti-slip groove, thereby making the clamping joint 50312 disengage from the anti-slip groove, and at this time, the reverse screwing of the threaded sleeve 502 is no longer hindered.

[0040] Specifically, the receiving groove 5052 is arranged on the side wall of the hexagonal prism, and when a wrench is used to screw, the card joint 50312 and the anti-slip groove can be unlocked at the same time.

[0041] In a specific embodiment, on the insertion rod 503, two fourth cavities 5032 are circumferentially provided on the outer circumference of the fifth cavity 5033, and the two fourth cavities 5032 are symmetrically arranged. The two fourth cavities 5032 are both provided with locking springs 5042 and blocks 5031. The transmission rope 5041 includes two branch sections 50412, and the two branch sections 50412 are both arranged at the rear end of the main section 50411. The two branch sections 50412 are respectively connected to the blocks 5031 in the two fourth cavities 5032.

[0042] In summary, an embodiment of the present invention provides a temperature detection device for a high-voltage circuit breaker, wherein a restraining band 401 is wound around the outer periphery of a contact arm, a temperature sensor 3 located at the lower end of a mounting block 1 abuts against the contact arm, a fitting spring 201 applies elastic force to a first slider 202, so that the temperature sensor 3 located at the lower end of the first slider 202 is tightly attached to the contact arm, and an inflatable portion 402 inflates a resistance-enhancing airbag 403 on the restraining band 401, so that the restraining band 401 is in a tensioned state, so that the temperature sensor 3 is preferably tightly attached to the contact arm, and since the resistance-enhancing airbag 403 has a certain flexibility, it can absorb the vibration of the contact arm to a certain extent, and when the restraining band 401 is in a tensioned state, the friction between the restraining band 401 and the contact arm is greater, so as to prevent the high-voltage circuit breaker temperature monitoring device from being displaced during monitoring, thereby ensuring that the temperature of the contact arm can be stably monitored and the monitoring data is accurate.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A high voltage circuit breaker temperature detection device, characterized in that: include: A mounting block (1), wherein the mounting block (1) has a first cavity (101) inside, and an opening (102) is provided at the lower end of the mounting block (1), and the opening (102) is in communication with the first cavity (101); A first laminating component (2), the first laminating component (2) comprising a laminating spring (201) and a first slider (202), the first slider (202) being slidably disposed in the first cavity (101) along an up-down direction, the upper and lower ends of the laminating spring (201) being respectively connected to the upper end of the first cavity (101) and the upper end surface of the first slider (202); A temperature sensor (3), the temperature sensor (3) being arranged at the lower end of the first sliding block (202), and the lower end of the temperature sensor (3) protruding from the opening (102); A second fitting component (4), the second fitting component (4) comprises a restraining belt (401), an inflatable part (402) and a plurality of resistance-enhancing airbags (403), the first end (4011) of the restraining belt (401) is fixedly connected to the mounting block (1), the second end (4012) of the restraining belt (401) is detachably mounted on the mounting block (1), the plurality of resistance-enhancing airbags (403) are arranged at intervals on the inner side of the restraining belt (401), the inflatable part (402) is arranged on the mounting block (1), and the air supply port of the inflatable part (402) is connected to the resistance-enhancing airbag (403).

2. The high-voltage circuit breaker temperature detection device according to claim 1, characterized in that: The mounting block (1) has a second cavity (103) inside, the second cavity (103) is located above the first cavity (101), the second cavity (103) is not connected to the first cavity (101), the inflation portion (402) comprises a pressure-regulating airbag (4021), the pressure-regulating airbag (4021) is accommodated in the second cavity (103), the first end (4011) of the restraint belt (401) is fixedly connected to the rear end of the mounting block (1), the second end (4012) of the restraint belt (401) is detachably mounted on the front end of the mounting block (1), the restraint belt (401) is provided with an air guide channel (4014), the air guide channel (4014) is connected to the resistance-enhancing airbag (403), The air guide channel (4014) has an extension section, and the rear end of the mounting block (1) is provided with an air guide port (104). The extension section passes through the restraining belt (401) and passes through the air guide port (104) and is connected to the pressure regulating air bag (4021). The second fitting component (4) also includes a second slider (404) and a push rod (405). The second slider (404) is slidably arranged in the second cavity (103) along the front-to-back direction, and the second slider (404) is located at the front end of the pressure regulating air bag (4021). The push rod (405) extends along the front-to-back direction, and the rear end of the push rod (405) is connected to the second slider (404), and the front end of the push rod (405) passes through the second cavity (103).

3. The high-voltage circuit breaker temperature detection device according to claim 2, characterized in that: It also includes an adjustment component (5), which includes a screw (501) and a threaded sleeve (502). The screw (501) extends in the front-to-back direction, the rear end of the screw (501) is connected to the front end face of the mounting block (1), the threaded sleeve (502) is meshed with the screw (501), the second end (4012) of the restraining belt (401) has a mounting ring (4013), the mounting ring (4013) is sleeved on the screw (501), the threaded sleeve (502) is located in front of the mounting ring (4013), and the front end of the push rod (405) abuts against the rear end face of the mounting ring (4013).

4. The high-voltage circuit breaker temperature detection device according to claim 3, characterized in that: The push rod (405) is in the shape of a U-shaped sheet and is arranged around the outer circumference of the screw rod (501).

5. The high-voltage circuit breaker temperature detection device according to claim 3, characterized in that: The screw rod (501) has a third cavity (5011) inside, and an anti-slip groove (5012) is provided in the third cavity (5011). The threaded sleeve (502) is provided with an insertion rod (503) extending in the front-to-back direction, and a clamping block (5031) is slidably provided on the insertion rod (503) and is engaged with the anti-slip groove (5012). The adjustment component (5) also includes an unlocking part (504), and a power output end of the unlocking part (504) is connected to the clamping block (5031) for driving the clamping block (5031) to slide.

6. The high-voltage circuit breaker temperature detection device according to claim 5, characterized in that: A plurality of anti-slip grooves (5012) are arranged side by side in the circumferential direction of the third cavity (5011), and the anti-slip grooves (5012) extend in the front-to-back direction. When viewed in the front-to-back direction, the anti-slip grooves (5012) have a first surface (50121) and a second surface (50122), and the extension direction of the first surface (50121) is consistent with the radial direction of the screw rod (501), the inner side edge of the second surface (50122) is connected to the inner side edge of the first surface (50121) of the anti-slip groove (5012), and the outer side edge of the second surface (50122) is connected to the outer side edge of the anti-slip groove (5012). The outer edge of the first surface (50121) of the adjacent anti-slip groove (5012) is provided with a fourth cavity (5032) inside the insertion rod (503); the clamping block (5031) includes a main body (50311) and a clamping joint (50312) arranged on the main body (50311); the main body (50311) is arranged in the fourth cavity (5032) along the radial sliding direction of the insertion rod (503); the clamping joint (50312) passes out from the fourth cavity (5032), passes through the insertion rod (503), and is shape-fittingly clamped in the anti-slip groove (5012).

7. The high-voltage circuit breaker temperature detection device according to claim 6, characterized in that: The front end of the insertion rod (503) has a cover body (505), and the rear end surface of the cover body (505) is arranged at the front end of the threaded sleeve (502). When viewed along the front-to-back direction, the cover body (505) covers the internal thread of the threaded sleeve (502). The cover body (505) is a hexagonal prism, and the unlocking portion (504) is arranged on the insertion rod (503).

8. The high-voltage circuit breaker temperature detection device according to claim 7, characterized in that: The unlocking portion (504) includes a transmission rope (5041) and a locking spring (5042). The interior of the insertion rod (503) has a fifth cavity (5033) extending in the front-to-back direction. The fifth cavity (5033) is located at the axis of the insertion rod (503). The fourth cavity (5032) is located outside the fifth cavity (5033). The transmission rope (5041) includes a main section (50411) and a branch section (50412) arranged at the rear end of the main section (50411). 11) is contained in the fifth cavity (5033), the branch section (50412) passes through the fifth cavity (5033) into the fourth cavity (5032), the end of the branch section (50412) is connected to the main body (50311), the locking spring (5042) is sleeved on the outer periphery of the branch section (50412), and the two ends of the locking spring (5042) are respectively connected to the main body (50311) and the side wall of the fourth cavity (5032) close to the fifth cavity (5033).

9. The high-voltage circuit breaker temperature detection device according to claim 8, characterized in that: The cover body (505) further comprises a sixth cavity (5051) and a receiving groove (5052); the extension direction of the sixth cavity (5051) is perpendicular to the extension direction of the fifth cavity (5033); the sixth cavity (5051) is connected to the fifth cavity (5033); the sixth cavity (5051) and the fifth cavity (5033) are jointly defined to form a T-shaped cavity; the receiving groove (5052) is provided on the side wall of the cover body (505); An outer end of the sixth cavity (5051) is connected to the accommodating groove (5052), and the unlocking portion (504) also includes an unlocking block (5043), and the unlocking block (5043) has an unlocking rod (5044), and the unlocking rod (5044) is slidably inserted into the sixth cavity (5051), and the unlocking block (5043) is slidably inserted into the accommodating groove (5052), and the unlocking rod (5044) is connected to the front end of the main section (50411).

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