Monitoring type explosion-proof high-voltage cable junction box

Abstract

The invention belongs to the technical field of high-voltage cable junction boxes, and discloses a monitoring type explosion-proof high-voltage cable junction box which comprises a junction box body, a first mounting disc is mounted at the top of the outer wall of the junction box body, a second mounting disc is mounted on one side of the first mounting disc, and a first annular groove is formed in the second mounting disc; a first output groove is formed in one side of the top of the second mounting disc in a penetrating mode and matched with the first annular groove. According to the device, a push plate is pushed to slide in a first output groove, an output block is driven to incline in the moving direction of a connecting plate, meanwhile, a stirring plate is driven to incline, and at the moment, the stirring plate inclines in a mounting groove to stir an extrusion plate to slide in a first compression groove; and when the extrusion plate is compressed into the first compression groove, the output block and the clamping block slide into the mounting groove, when the output block slides downwards and abuts against the first compression groove, the push plate is loosened for resetting, and in the resetting process, the clamping block is extruded into the clamping groove through extrusion of the extrusion plate for rapid mounting.

Description

Technical Field

[0001] The invention belongs to the technical field of high-voltage cable junction boxes, in particular to a monitoring type flameproof high-voltage cable junction box. Background Art

[0002] The monitoring type flameproof high-voltage cable junction box is an explosion-proof device used for high-voltage cable connection and protection. It combines electrical wiring, signal monitoring and explosion-proof functions and is widely used in flammable and explosive places, such as petrochemical, coal mining and natural gas industries. Its main function is to prevent possible internal electrical faults, sparks or high temperatures from causing external flammable gas or dust explosions through a specially designed flameproof enclosure to ensure the safe operation of the equipment. At the same time, the junction box has a built-in monitoring system that can detect the current, voltage, temperature and other parameters of the cable in real time, detect faults in time and issue alarms to prevent the spread of cable faults and ensure the safety and stability of the system. The monitoring system generally uses intelligent sensors and data acquisition devices, which can transmit monitoring data to the control center through signals to achieve remote monitoring, diagnosis and maintenance. In order to adapt to the high-voltage power system, the flameproof junction box is usually made of high-temperature resistant and corrosion-resistant materials, and has strong seismic and impact resistance, and can withstand harsh working environments. Through comprehensive explosion-proof, monitoring, alarm and other multiple functions, the monitoring type flameproof high-voltage cable junction box not only improves the safety of equipment operation, but also effectively reduces downtime and maintenance costs. It is an important part of electrical equipment protection and management in high-risk environments.

[0003] When installing the existing explosion-proof junction box, the top cover is connected through the bolts welded on the box body and then fixed with nuts to seal the explosion-proof junction box. However, during installation, multiple nuts need to be screwed to install it, and the whole operation is cumbersome. At the same time, when tightening the nuts, it is difficult to ensure that the tightening force of all nuts is uniform. If one nut is tightened too tight and one of the nuts is tightened too loose, the top cover may not be completely pressed together, affecting the sealing of the junction box. During maintenance and disassembly, multiple nuts need to be unscrewed one by one to disassemble the top cover, which increases maintenance time and operation complexity. Summary of the invention

[0004] In order to solve the problem proposed in the above background technology that during installation, multiple nuts need to be screwed to install them, and the whole operation is rather cumbersome. At the same time, when tightening the nuts, it is difficult to ensure that the tightening force of all nuts is uniform. If a nut is screwed too tight and one of the nuts is screwed too loose, the top cover may not be completely pressed together, affecting the sealing of the junction box. During maintenance and disassembly, multiple nuts also need to be unscrewed one by one to disassemble the top cover, increasing the maintenance time and operation complexity. The present invention provides a monitoring type flameproof high-voltage cable junction box.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a monitoring type flameproof high-voltage cable junction box, comprising a junction box, a mounting plate 1 is installed on the top of the outer wall of the junction box, a mounting plate 2 is installed on one side of the mounting plate 1, an annular groove 1 is opened inside the mounting plate 2, one side of the top of the mounting plate 2 penetrates and is opened with an output groove 1, and the output groove 1 cooperates with the annular groove 1, an annular plate is slidably connected to the top of the inner top of the annular groove 1, a push plate is fixedly connected to the top side of the annular plate, and the push plate penetrates the mounting plate 2 and slides in the output groove 1, the bottom of the mounting plate 2 penetrates the annular groove 1 and is opened with eight output grooves 2, eight groups of connecting plates are installed on both sides of the bottom of the push plate, one group of the connecting plates is rotatably connected with an output block inside, the middle part of the output block penetrates and is fixedly connected with a connecting rod, and the two ends of the connecting rod are rotatably connected to the two sides of the inner wall of the output groove 2, one side of the output block penetrates the output groove 2 and is fixedly connected with a card block, and one end of the output block away from the connecting plate is fixedly connected with a toggle plate.

[0006] Preferably, eight connecting blocks are fixedly connected to one side of the inner cavity of the annular groove 1 close to the output groove 2, one side of the eight connecting blocks is fixedly connected to a spring 1, and one end of the spring 1 away from the connecting block is fixedly connected to the output block.

[0007] Preferably, eight mounting grooves are provided on the side of the mounting disk 1 close to the mounting disk 2, a card slot is provided on one side of the inner cavity of one of the mounting grooves, a compression groove 1 is provided on the side of the inner cavity of the mounting groove away from the card slot, a spring 2 is installed on one side of the inner cavity of the compression groove 1, a side of the spring 2 away from the compression groove 1 is fixedly connected to an extrusion plate, and the extrusion plate slides in the compression groove 1, and both sides of the extrusion plate are fixedly connected to limit plates, and the limit plates slide in the compression groove 1.

[0008] Preferably, an annular groove 2 is provided on the side of the bottom of the mounting plate 2 away from the annular groove 1, a plurality of springs 3 are fixedly connected inside the annular groove 2, an annular limiting plate is fixedly connected on the side of the spring 3 away from the annular groove 2, and the annular limiting plate slides in the annular groove 2, and an annular sealing gasket is fixedly connected on the side of the annular limiting plate away from the spring 3.

[0009] Preferably, an annular sealing groove is provided on a side of the top of the second mounting plate away from the mounting groove, and the annular sealing groove cooperates with the annular sealing gasket.

[0010] Preferably, a top cover is installed on the inner wall of the second installation plate, and a mounting box is passed through and fixedly connected to the middle of the top cover.

[0011] Preferably, a glass window is passed through and installed on the top of the installation box, and a digital display screen is installed inside the installation box, and the digital display screen cooperates with the glass window.

[0012] Preferably, an integrated pressure plate is installed at the bottom of the inner cavity of the top cover, and a sensor is installed on the top of the integrated pressure plate.

[0013] Preferably, an electrical connection board is installed on the side of the installation box away from the glass window, and the electrical connection board is electrically connected to the digital display screen. A circuit board is installed on the side of the electrical connection board away from the digital display screen, and the circuit board is electrically connected to the sensor.

[0014] Preferably, a porcelain base connecting column is installed at the bottom of the inner cavity of the junction box, which is used for connecting components of high-voltage cables in electrical equipment.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention avoids the problem of cumbersome operation of screwing multiple nuts and the problem of being unable to ensure the tightening force of all nuts when installing the top cover by arranging the cooperation of structures such as the push plate, the output block and the installation slot, and the problem of being unable to ensure the tightening force of all nuts when installing the top cover. The toggle plate is inserted into the installation slot, and then the push plate is pushed to make the push plate slide in the output slot one, driving the output block to tilt in the direction of movement of the connecting plate, and at the same time driving the toggle plate to tilt. At this time, the toggle plate is tilted in the installation slot, which will toggle the extrusion plate to slide in the compression slot one and compress the spring two. When the extrusion plate is compressed into the compression slot one, the output block and the card block slide into the installation slot. When the output block slides downward and contacts, the push plate is released, and the annular plate and the push plate are reset by the rebound force of the spring one and the spring two, and the output block is reset at the same time. When the output block is reset, the card block is squeezed into the card slot by the extrusion of the extrusion plate for quick installation.

[0016] The present invention can be quickly disassembled for maintenance by arranging the cooperation of structures such as the push plate, the output block and the installation groove. When disassembling for maintenance, the push plate is pushed to make it slide in the output groove one, and the annular plate is moved when the push plate moves, and the connecting plate is driven to move. When the connecting plate moves, the output block is tilted in the direction of movement of the connecting plate. At this time, the inclination of the output block can stretch the spring one, and the toggle plate is driven to tilt when the output block is cut obliquely. When the output block is cut obliquely, the toggle plate is driven to tilt. At this time, the toggle plate is tilted in the installation groove, and the toggle extrusion plate slides in the compression groove one and compresses the spring two at the same time. When the output block is tilted, the card block is separated from the installation groove, and then the entire mounting plate two is lifted upward to separate the output block from the installation groove to complete the quick disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 A side sectional view of the first and second mounting plates of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the bottom of the second mounting plate of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle; Figure 6 It is a front cross-sectional view of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle; Figure 8 For the present invention Figure 6 Enlarged view of point D in the middle.

[0018] In the figure: 1, junction box; 2, mounting plate 1; 3, mounting plate 2; 4, annular groove 1; 5, output groove 1; 6, annular plate; 7, push plate; 8, connecting plate; 9, output block; 10, connecting rod; 11, clamping block; 12, toggle plate; 13, output groove 2; 14, connecting block; 15, spring 1; 16, mounting groove; 17, clamping groove; 18, compression groove 1; 19, spring 2; 20, extrusion plate; 21, limit plate; 22, annular groove 2; 23, spring 3; 24, annular limit plate; 25, annular sealing gasket; 26, annular sealing groove; 27, top cover; 28, mounting box; 29, glass window; 30, electrical connection board; 31, digital display screen; 32, circuit board; 33, integrated pressure plate; 34, sensor; 35, porcelain seat connecting column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 8As shown, the present invention provides a monitoring type flameproof high-voltage cable junction box, including a junction box 1, a mounting plate 2 is installed on the top of the outer wall of the junction box 1, a mounting plate 3 is installed on one side of the mounting plate 2, an annular groove 4 is opened inside the mounting plate 3, an output groove 5 is penetrated and opened on one side of the top of the mounting plate 3, and the output groove 5 cooperates with the annular groove 4, an annular plate 6 is slidably connected to the top of the annular groove 4, a push plate 7 is fixedly connected to the top side of the annular plate 6, and the push plate 7 penetrates the mounting plate 3 and is The bottom of the mounting plate 2 3 penetrates the annular groove 1 4 and is provided with eight output grooves 2 13. Eight groups of connecting plates 8 are installed on both sides of the bottom of the push plate 7. An output block 9 is rotatably connected to the inside of one group of connecting plates 8. A connecting rod 10 is penetrated and fixedly connected to the middle of the output block 9, and both ends of the connecting rod 10 are rotatably connected to both sides of the inner wall of the output groove 2 13. One side of the output block 9 penetrates the output groove 2 13 and is fixedly connected to a card block 11. The end of the output block 9 away from the connecting plate 8 is fixedly connected to a toggle plate 12. Eight connecting blocks 14 are fixedly connected to one side of the inner cavity of the annular groove 14 near the output groove 2 13, and one side of the eight connecting blocks 14 is fixedly connected to a spring 15, and one end of the spring 15 away from the connecting block 14 is fixedly connected to the output block 9; Eight mounting grooves 16 are provided on the side of the mounting disk 12 close to the mounting disk 2 3, a clamping groove 17 is provided on one side of the inner cavity of one mounting groove 16, a compression groove 18 is provided on the side of the inner cavity of the mounting groove 16 away from the clamping groove 17, a spring 2 19 is installed on one side of the inner cavity of the compression groove 18, an extrusion plate 20 is fixedly connected to the side of the spring 2 19 away from the compression groove 18, and the extrusion plate 20 slides in the compression groove 18, and both sides of the extrusion plate 20 are fixedly connected to limit plates 21, and the limit plates 21 slide in the compression groove 18.

[0021] The above scheme is adopted: when the push plate 7 moves, the annular plate 6 is driven to move, and the eight connecting plates 8 are driven to move through 6. When the connecting plate 8 moves, the output block 9 is tilted in the direction of the connecting plate 8. At this time, the tilt of the output block 9 will stretch the spring 15. When the output block 9 is cut obliquely, the toggle plate 12 is driven to tilt. At this time, the tilt of the toggle plate 12 in the installation groove 16 will toggle the extrusion plate 20 to slide in the compression groove 18 and compress the spring 2 19. When the extrusion plate 20 is compressed, When the output block 9 is in the compression groove 18, the output block 9 and the clamping block 11 slide into the installation groove 16. When the output block 9 slides downward and contacts each other, the push plate 7 is released. The annular plate 6 and the push plate 7 are reset by the rebound force of the spring 15 and the spring 2 19, and the output block 9 is reset at the same time. When the output block 9 is reset, the clamping block 11 is squeezed into the clamping groove 17 by the squeezing plate 20 for installation. In the existing technology, eight sets of bolts and nuts are usually used for installation, and the above also refers to eight sets of installation components.

[0022] like Figures 1 to 8 As shown, a second annular groove 22 is provided at a side of the bottom of the second mounting plate 3 away from the first annular groove 4, a plurality of third springs 23 are fixedly connected inside the second annular groove 22, a side of the third spring 23 away from the second annular groove 22 is fixedly connected to a ring-shaped limiting plate 24, and the ring-shaped limiting plate 24 slides in the second annular groove 22, and a ring-shaped sealing gasket 25 is fixedly connected to the side of the third spring 23 away from the third annular groove 22; An annular sealing groove 26 is formed on the top of the second mounting plate 3 at a side away from the mounting groove 16 , and the annular sealing groove 26 cooperates with the annular sealing gasket 25 .

[0023] By adopting the above scheme, when the mounting plate 1 2 and the mounting plate 2 3 are installed, the annular sealing gasket 25 will be inserted into the annular sealing groove 26. The elastic force of the spring 3 23 can make the annular sealing gasket 25 always fit to the annular sealing groove 26, so as to avoid the mounting plate 1 2 and the mounting plate 2 3 not being completely pressed together during installation, which affects the sealing of the junction box.

[0024] like Figures 1 to 8 As shown, a top cover 27 is installed on the inner wall of the installation plate 2 3, and a mounting box 28 is passed through and fixedly connected to the middle of the top cover 27; A glass window 29 is installed on the top of the installation box 28, and a digital display screen 31 is installed inside the installation box 28, and the digital display screen 31 cooperates with the glass window 29; An integrated pressure plate 33 is installed at the bottom of the inner cavity of the top cover 27, and a sensor 34 is installed on the top of the integrated pressure plate 33; An electrical connection board 30 is installed on the side of the installation box 28 away from the glass window 29, and the electrical connection board 30 is electrically connected to the digital display screen 31. A circuit board 32 is installed on the side of the electrical connection board 30 away from the digital display screen 31, and the circuit board 32 is electrically connected to the sensor 34. A porcelain base connecting column 35 is installed at the bottom of the inner cavity of the junction box 1, which is used for connecting components of high-voltage cables in electrical equipment.

[0025] With the above solution: the digital display screen 31 can be viewed through the glass window 29, the sensor 34 is installed in the junction box 1, ensuring that the ambient temperature and humidity in the junction box 1 can be monitored in real time, and the data can be transmitted to the system for processing, and the digital display screen 31 can be used to display the temperature and humidity data in the junction box 1 in real time; The circuit board 32 is responsible for processing the sensor signal and transmitting the temperature and humidity data to the microprocessor (MCU or SoC) through an appropriate interface (such as SPI, I2C or UART) for further processing. It is also responsible for controlling the wireless module to achieve wireless transmission of data; The digital display screen 31, circuit board 32 and sensor 34 can analyze information such as temperature, humidity, current, voltage, and grounding, and set thresholds. When an abnormality is detected (such as excessive temperature, excessive humidity, abnormal current, etc.), the system will trigger an early warning and notify the operator; In the junction box 1 , the shell of the integrated pressure plate 33 is made of insulating material (such as polymer, ceramic or silicone), which ensures electrical safety, avoids electrical leakage, and ensures electrical isolation between the crimping parts.

[0026] The working principle and use process of the present invention: When installing, insert the toggle plate 12 into the installation groove 16, and then push the push plate 7 to make the push plate 7 slide in the output groove 5. When the push plate 7 moves, the annular plate 6 is driven to move, and the eight connecting plates 8 are driven to move through 6. When the connecting plate 8 moves, the output block 9 is tilted in the direction of movement of the connecting plate 8. At this time, the tilting of the output block 9 will cause the spring 15 to stretch. When the output block 9 is cut obliquely, the toggle plate 12 is driven to tilt. At this time, the tilting of the toggle plate 12 in the installation groove 16 will toggle the extrusion plate 20 to slide in the compression groove 18 and make the spring 2 19 move. When the extrusion plate 20 is compressed into the compression groove 18, the output block 9 and the clamping block 11 slide into the installation groove 16. When the output block 9 slides downward and contacts, the push plate 7 is released, and the annular plate 6 and the push plate 7 are reset by the rebound force of the spring 15 and the spring 2 19, and the output block 9 is reset at the same time. When the output block 9 is reset, the clamping block 11 is squeezed into the clamping groove 17 by the extrusion of the extrusion plate 20 for installation, thereby avoiding the cumbersome operation of screwing multiple nuts when installing the top cover 27 and the problem of not being able to ensure the tightening force of all nuts; When the mounting plate 1 2 and the mounting plate 2 3 are installed, the annular sealing gasket 25 is inserted into the annular sealing groove 26. The elastic force of the spring 3 23 can make the annular sealing gasket 25 always fit the annular sealing groove 26, so as to avoid that the mounting plate 1 2 and the mounting plate 2 3 are not completely pressed together during installation, which affects the sealing of the junction box. When disassembling for maintenance, push the push plate 7 to make it slide in the output groove 1 5. When the push plate 7 moves, the annular plate 6 is driven to move, and the connecting plate 8 is driven to move through 6. When the connecting plate 8 moves, the output block 9 will be tilted in the direction of movement of the connecting plate 8. At this time, the inclination of the output block 9 will stretch the spring 15. When the output block 9 is beveled, the toggle plate 12 will be driven to tilt. When the output block 9 is beveled, the toggle plate 12 will be driven to tilt. At this time, the toggle plate 12 is tilted in the installation groove 16 to drive the extrusion plate 20 to slide in the compression groove 18 and compress the spring 2 19. When the output block 9 is tilted, the card block 11 will be disengaged from the installation groove 16, and then the entire mounting plate 2 3 will be lifted upward to disengage the output block 9 from the installation groove 16 to complete the quick disassembly.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring type flameproof high voltage cable junction box, comprising a junction box (1), characterized in that: The top of the outer wall of the junction box (1) is provided with a mounting plate 1 (2), a mounting plate 2 (3) is installed on one side of the mounting plate 1 (2), an annular groove 1 (4) is provided inside the mounting plate 2 (3), an output groove 1 (5) is penetrated and provided on one side of the top of the mounting plate 2 (3), and the output groove 1 (5) cooperates with the annular groove 1 (4), an annular plate (6) is slidably connected to the top of the annular groove 1 (4), a push plate (7) is fixedly connected to the top side of the annular plate (6), and the push plate (7) penetrates the mounting plate 2 (3) and slides in the output groove 1 (5), and the mounting plate 2 The bottom of the push plate (3) passes through the annular groove one (4) and is provided with eight output grooves two (13). Eight groups of connecting plates (8) are installed on both sides of the bottom of the push plate (7). An output block (9) is rotatably connected inside one group of connecting plates (8). A connecting rod (10) passes through and is fixedly connected to the middle of the output block (9), and both ends of the connecting rod (10) are rotatably connected to both sides of the inner wall of the output groove two (13). One side of the output block (9) passes through the output groove two (13) and is fixedly connected to a clamping block (11). One end of the output block (9) away from the connecting plate (8) is fixedly connected to a toggle plate (12).

2. The monitoring type flameproof high voltage cable junction box according to claim 1 is characterized in that: Eight connecting blocks (14) are fixedly connected to one side of the inner cavity of the annular groove one (4) close to the output groove two (13), and one side of the eight connecting blocks (14) is fixedly connected to a spring one (15), and one end of the spring one (15) away from the connecting block (14) is fixedly connected to the output block (9).

3. The monitoring type flameproof high voltage cable junction box according to claim 1 is characterized in that: The mounting plate 1 (2) is provided with eight mounting grooves (16) on one side close to the mounting plate 2 (3); a clamping groove (17) is provided on one side of the inner cavity of the mounting groove (16); a compression groove 1 (18) is provided on the inner cavity of the mounting groove (16) away from the clamping groove (17); a spring 2 (19) is installed on the inner cavity of the compression groove 1 (18); a compression plate (20) is fixedly connected to the side of the spring 2 (19) away from the compression groove 1 (18), and the compression plate (20) slides in the compression groove 1 (18); and limiting plates (21) are fixedly connected to both sides of the compression plate (20), and the limiting plates (21) slide in the compression groove 1 (18).

4. The monitoring type flameproof high voltage cable junction box according to claim 1 is characterized in that: A second annular groove (22) is provided at a side of the bottom of the second mounting plate (3) away from the first annular groove (4); a plurality of third springs (23) are fixedly connected inside the second annular groove (22); a side of the third spring (23) away from the second annular groove (22) is fixedly connected to a ring-shaped limit plate (24); the ring-shaped limit plate (24) slides in the second annular groove (22); a side of the third spring (23) away from the third annular groove (23) is fixedly connected to a ring-shaped sealing gasket (25).

5. The monitoring type flameproof high voltage cable junction box according to claim 1 is characterized in that: An annular sealing groove (26) is provided on a side of the top of the second mounting plate (3) away from the mounting groove (16), and the annular sealing groove (26) cooperates with the annular sealing gasket (25).

6. The monitoring type flameproof high voltage cable junction box according to claim 1 is characterized in that: A top cover (27) is installed on the inner wall of the second installation plate (3), and a mounting box (28) is passed through and fixedly connected to the middle of the top cover (27).

7. The monitoring type flameproof high voltage cable junction box according to claim 6 is characterized in that: A glass window (29) is installed through the top of the installation box (28), and a digital display screen (31) is installed inside the installation box (28), and the digital display screen (31) cooperates with the glass window (29).

8. The monitoring type flameproof high voltage cable junction box according to claim 6 is characterized in that: An integrated pressure plate (33) is installed at the bottom of the inner cavity of the top cover (27), and a sensor (34) is installed at the top of the integrated pressure plate (33).

9. The monitoring type flameproof high voltage cable junction box according to claim 6 is characterized in that: An electrical connection board (30) is installed on a side of the installation box (28) away from the glass window (29), and the electrical connection board (30) is electrically connected to the digital display screen (31). A circuit board (32) is installed on a side of the electrical connection board (30) away from the digital display screen (31), and the circuit board (32) is electrically connected to the sensor (34).

10. The monitoring type flameproof high voltage cable junction box according to claim 1, characterized in that: A porcelain base connecting column (35) is installed at the bottom of the inner cavity of the junction box (1) and is used for connecting components of high-voltage cables in electrical equipment.

Images