A circuit breaker automation opening and closing rain test device

Abstract

The application provides a circuit breaker automatic opening and closing rain test device which can realize automatic opening and closing when breaking, thereby greatly saving manual labor and improving operation safety. The device comprises a circuit breaker, an automatic opening and closing tool, a rain test device module and a rain amount receiving module, is customized according to the actual situation of high-voltage equipment simulation operation site, and is applied to simulation circuit sites and the like. The device is safe and reliable, and can be operated without people after starting. The rain amount collector is applied to test under simulated weather and rain according to test standards. The application is suitable for the technical field of electrical equipment safe operation test.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safe operation test of electrical equipment, and particularly relates to a circuit breaker automatic opening and closing rain test device. BACKGROUND

[0002] In recent years, with the continuous progress of social construction in China, the demand for electricity gradually increases, and the users have higher and higher requirements for the safety and reliability of power grid operation. In order to ensure that the high-voltage power grid can be safely and reliably operated, especially in the face of extreme weather such as heavy rain, it is necessary to conduct a simulated rain test on electrical equipment, aiming to comprehensively improve the external insulation level of the power transmission line and ensure the safety of electricity. The common test method on the market is to use artificial shelves to fix the nozzles and manually operate the opening and closing, and the test is carried out according to the standard of 500 times of opening and closing. This method has the following shortcomings:

[0003] 1. Artificial shelf fixed nozzle: if the nozzle is not fixed firmly during installation, it is not very convenient to install and disassemble by hand, and the repeated work is large, and the manpower and material resources are increased. The rain test fixture is fixed reliably, the height can be adjusted, and a series of repeated work is reduced; 2. Artificial reclosing test: manual opening and closing exists safety hidden danger in high voltage test, increases manpower and material resources, and the reclosing time is not accurate. The automatic reclosing solves the potential threat of electric shock in high voltage test, accurately closes in the specified time, and accurately performs the task according to the specified time; 3. Rainfall collector: in the process of rain test, if there is no rainfall collector to collect, the rainfall cannot be measured, and the test cannot be carried out according to the standard. Therefore, the rainfall collector is needed to carry out the test, and the rainfall collector is used to collect and measure data, so that accurate data information can be obtained.

[0004] The existing Chinese patent for public disclosure "Rainfall automatic measurement system and method for rain test of electrical equipment" with application number 201510958872.3 discloses a rain test equipment. The equipment is provided with a plurality of groups of collection funnels every 2m on a measuring column with a height of 16m, and collects the rainfall in the horizontal direction and the vertical direction through different opening directions. Finally, the collected rainfall is weighed by a water storage container, and the rainfall data of each collection funnel is analyzed by a data collector, and the rainfall of the rain test is displayed. However, the above-mentioned patent only has the measurement function and does not have the automatic opening and closing function, and still needs manual operation. Meanwhile, the collection funnel collects rainwater in a single direction. Therefore, the placement position of the measuring column may cause uneven rainwater collection, which affects the accuracy of the test results.

[0005] In view of the above problems, it is particularly important to develop a rain test equipment capable of automatically opening and closing the circuit breaker. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and provide a circuit breaker automatic opening and closing rain test device which can realize automatic opening and closing during rain test of the circuit breaker, thereby greatly saving labor and resources and improving operation safety.

[0007] The technical scheme adopted by the present application is:

[0008] a circuit breaker;

[0009] an automatic opening and closing tool for fixing the circuit breaker, wherein an automatic telescopic module connected with a circuit breaker opening and closing rod is arranged in the automatic opening and closing tool, and the automatic telescopic module is used for automatic opening and closing of the circuit breaker;

[0010] a rain generator module arranged at the other end of the circuit breaker relative to the automatic opening and closing tool, and used for automatic spraying of water on the circuit breaker;

[0011] a rain receiving module arranged between the automatic opening and closing tool and the rain generator module and located at the side of any one of the two sides of the circuit breaker, comprising a rain receiving device and a rain amount calculation container connected by a hose;

[0012] The automatic telescopic module comprises a control system, an air pressure accumulator and a cylinder push-pull device electrically connected with the control system, and a pneumatic telescopic rod, the air pressure accumulator and the cylinder push-pull device are connected by an air pipe, the cylinder push-pull device and the pneumatic telescopic rod are connected by an air pipe, and the top of the pneumatic telescopic rod is connected with the circuit breaker opening and closing rod.

[0013] Further, the automatic opening and closing tool further comprises a supporting base and a supporting frame detachably arranged at any one end of the supporting base, a cross bar is arranged at the top of the supporting frame, a plurality of bolt holes are arranged at the left and right ends of the cross bar, and the circuit breaker and the switch are arranged at the two ends of the cross bar; a rotating shaft flange is further arranged on the other side of the supporting base corresponding to the supporting frame, the control system and the cylinder push-pull device are fixedly arranged on the left and right sides of the rotating shaft flange, the pneumatic telescopic rod is rotatably connected with the rotating shaft flange, and the air pressure accumulator is fixedly arranged on the supporting base.

[0014] Further, the supporting frame is arranged on the supporting base through a heavy base, the heavy base is internally provided with a heavy interlayer, and a plurality of hooks are further arranged on the supporting frame.

[0015] Further, the pneumatic telescopic rod comprises a rotating connection with the slide rail on the rotating shaft flange, a pneumatic cylinder fixedly arranged at the bottom of the slide rail, and a fiber insulation pipe connected with the piston rod of the pneumatic cylinder and in sliding fit with the slide rail, the fiber insulation pipe being provided with a pulley block at the bottom and an automatic equalizing pressure lock at the top, the automatic equalizing pressure lock being connected with the switch.

[0016] Further, the automatic equalizing pressure lock comprises a lock head fixedly arranged at the top of the fiber insulation pipe through a bolt, a circuit breaker sleeve arranged in the lock head, and a spring sheet elastically hinged to the lock head at the bottom through a return spring, a gap being left in the middle of the lock head, and the circuit breaker sleeve extending into the gap in normal state.

[0017] Further, the pulley block comprises a first pulley and a second pulley arranged at the bottom of the fiber insulation pipe through a first flange and a second flange respectively, and an impact steel sleeve arranged between the first flange and the second flange, a buffer spring being sleeved on the piston rod, and a protection groove being further arranged outside the slide rail.

[0018] Further, the rain generating module comprises a spraying support, a plurality of rotatable nozzles arranged at the top of the spraying support, a water storage bucket, a water pump, and a secondary water supply pump, the water storage bucket being connected with an external water source through the water pump, the plurality of rotatable nozzles being communicated with the water storage bucket through the secondary water supply pump, the spraying support being composed of a rubber base, a sleeve, and a lifting rod from bottom to top, the lifting rod being slidable in a vertical direction in the sleeve and being connected through a locking tooth, a spraying cross bar being further arranged at the top of the lifting rod, a plurality of mounting holes being uniformly distributed on the spraying cross bar, and the rotatable nozzles being arranged on the mounting holes.

[0019] Further, the rain amount receiving device is provided with a planar receiving port and a side receiving port at the top and the front panel respectively, and the planar receiving port and the side receiving port are both provided with a rain amount pipe connected with the rain amount calculation container.

[0020] Further, the planar receiving port and the side receiving port are both designed as square funnels, and the bottom surface is designed to be inclined to the direction where the rain amount pipe is located.

[0021] Finally, the rain amount calculation container is composed of a first container and a second container arranged side by side, the first container is communicated with the planar receiving port through the rain amount pipe, the second container is communicated with the side receiving port through the rain amount pipe, and the first container and the second container are both provided with scale marks.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows:

[0023] First, the rain shower system solves the problem of difficulty in fixing nozzles with manual frames, and the rain shower system can be repeatedly fixed to reduce labor costs.

[0024] Second, the circuit breaker rain system is easy to move during testing, and its height can be adjusted as needed. It can also easily adjust its direction and angle, reducing the unsafety of working at height.

[0025] Third, the automatic opening and closing of circuit breakers and rain systems is more precise than manual closing, and automatic control effectively reduces the risk of electric shock to personnel during testing.

[0026] Fourth, the addition of a side receiving port can effectively simulate wind direction changes during rain testing, improving the accuracy and comprehensiveness of the test data. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is an exploded structural diagram of the pneumatic telescopic rod;

[0029] Figure 3 This is a schematic diagram of the exploded structure of the fiber insulating tube.

[0030] Figure 4 This is a structural schematic diagram of the support frame;

[0031] Figure 5 This is a schematic diagram of the structure of the spraying support;

[0032] Figure 6 This is a schematic diagram of the structure of the rain gauge device;

[0033] Figure 7 This is a schematic diagram of the structure of the rainfall calculation container. Detailed Implementation

[0034] like Figure 1 As shown, the present invention includes

[0035] Circuit breaker 1;

[0036] An automated opening and closing fixture is used to fix the circuit breaker 1. The automated opening and closing fixture is equipped with an automatic telescopic module connected to the opening and closing lever of the circuit breaker 1 for automatic opening and closing of the circuit breaker 1.

[0037] The rain falling module is arranged at the other end of the circuit breaker 1 relative to the automatic opening and closing device, and is used for automatically spraying water on the circuit breaker 1. The rain falling module can be directly connected to a water pipe or a prepared water storage device, and the flow rate can be controlled according to the requirement to control the rainfall and achieve the purpose of raining. Meanwhile, the atomization effect can be adjusted according to different angles and different directions, and the size of water droplets can be adjusted according to the actual situation to achieve the desired rainfall effect or atomization effect. The height can be adjusted according to the actual situation.

[0038] The rainfall receiving module is arranged between the automatic opening and closing device and the rain falling module and located at the side of any one of the two sides of the circuit breaker 1, and includes a rainfall receiving device and a rainfall calculation container connected by a hose. The rainfall receiving device is specially designed according to the test standard, and the top and side thereof are provided with receiving openings, which can be distributed at different angles to solve the problem of receiving rainfall, and the height can be raised or hung on the support of the circuit breaker 1 to collect rainfall. The main purpose of the rainfall calculation container is to collect and measure the rainfall on the top and side of the rainfall receiving device.

[0039] The automatic telescopic module includes a control system 2, an air pressure accumulator 3 and a cylinder pushing back and forth device 4 electrically connected with the control system 2, and a pneumatic telescopic rod. The air pressure accumulator 3 and the cylinder pushing back and forth device 4 are connected by an air pipe 5, and the cylinder pushing back and forth device 4 and the pneumatic telescopic rod are also connected by the air pipe 5. The top of the pneumatic telescopic rod is connected with the opening and closing pull rod of the circuit breaker 1. The control system 2 can automatically control the completion of the task according to the set time, the number of executions and the like. After starting, the automatic telescopic module can realize unattended operation and unattended work. The air pressure accumulator 3 is designed to ensure that the terminal air pressure can meet the instantaneous pneumatic power. The pneumatic telescopic rod is movably fixedly connected with the opening and closing pull rod of the circuit breaker 1, and can pull the switch according to the actual requirement to achieve the purpose of automatically opening and closing the circuit breaker 1.

[0040] As Figure 2 , Figure 3 and Figure 4As shown, in the present embodiment, the automatic assembling and disassembling tool further comprises a supporting base 6 and a supporting frame 7 detachably arranged on any one end of the supporting base 6, a crossbar 8 is arranged on the top of the supporting frame 7, a plurality of bolt holes are arranged on the left and right ends of the crossbar 8, the circuit breaker 1 and the switch are arranged on the two ends of the crossbar 8 respectively, and the plurality of bolt holes can be arranged in different sizes to adapt to circuit breakers 1 of different brands or sizes and models; the supporting base 6 further comprises a rotating shaft flange 9 arranged on the other side of the supporting frame 7, the control system 2 and the cylinder push-pull device 4 are fixedly arranged on the left and right sides of the rotating shaft flange 9 respectively, the pneumatic telescopic rod is rotatably connected with the rotating shaft flange 9, the air pressure accumulator 3 is fixedly arranged on the supporting base 6, and a vibration-proof supporting square channel 39 is further arranged between the rotating shaft flange 9 and the supporting base 6, since the pulling force used by the cylinder push-pull device 4 during each round trip reaches 20KG, the vibration-proof supporting square channel 39 can avoid damage to the equipment due to long-term stress. The supporting frame 7 is arranged on the supporting base 6 through a heavy base 10, the heavy base 10 is internally provided with a heavy interlayer 11, and the heavy interlayer 11 is made of concrete in the present application, since the circuit breaker is a relatively heavy material, the heavy base is needed to balance, and the weight is not easy to increase, a plurality of hooks 12 are further arranged on the supporting frame 7, and other line sensors or more electronic devices required on the test site can be placed on the hooks 12. The pneumatic telescopic rod comprises a slide rail 13 rotatably connected to the rotating shaft flange 9, a pneumatic cylinder 14 fixedly arranged at the bottom of the slide rail 13, and a fiber insulation pipe 15 connected with the piston rod of the pneumatic cylinder 14 and in sliding fit with the slide rail 13, a pulley block is arranged at the bottom of the fiber insulation pipe 15, and an equal-pressure automatic lock buckle is arranged at the top of the fiber insulation pipe 15 and connected with the switch. The equal-pressure automatic lock buckle comprises a lock head 16 fixedly arranged at the top of the fiber insulation pipe 15 through a bolt, a circuit breaker sleeve handle 17 arranged in the lock head 16, and a spring retaining plate 19 elastically hinged to the lock head 16 through a return spring 18 at the bottom, a gap is left in the middle of the lock head 16, and the circuit breaker sleeve handle 17 extends into the gap in normal state. The pulley block comprises a first pulley and a second pulley arranged at the bottom of the fiber insulation pipe 15 through a first flange 20 and a second flange 21 respectively, an impact steel sleeve 22 is further arranged between the first flange 20 and the second flange 21, a buffer spring 23 is sleeved on the piston rod, and a protection groove 24 is further arranged on the outer side of the slide rail 13. The present application stores energy through the air pressure accumulator 3 and drives the pneumatic cylinder 14 to start, realizes the round trip sliding of the fiber insulation pipe 15 on the slide rail 13, and thus realizes the automatic disassembling function of the circuit breaker 1.

[0041] In the above scheme, the fiber insulation tube 15 can play an insulating role, and will not discharge to the ground and equipment, protecting the safety of the equipment; the protection groove 24 is designed to protect the cover from being accidentally touched during the automatic operation, preventing accidents from occurring during the disconnection and connection; the uniform pressure automatic lock is designed to connect the circuit breaker 1, and through this method, the hand can press the active buckle and automatically lock, and there is a certain space in the ring, which can play a role in uniform pressure and connection, and the automatic disconnection and connection can be freely operated in the designated direction; the pulley block is fixed to the fiber insulation tube 15 by tightening the bolt, and cooperates with the slide rail 13 to perform the back-and-forth action, without deviating from the track, and the automatic control operation process will not deviate, error, or be too forceful; the impact steel sleeve 22 is designed in a circular shape according to the weight and force of the circuit breaker, and through the approximate equal force, it is easy to separate and connect, and due to the air pressure problem, it cannot be too large or too small, and only through this method can the problem be solved; since the returning process is too fast, it can easily cause the equipment to be damaged, and the buffer spring 23 effectively reduces the impact force during the return, avoiding the damage of the equipment.

[0042] As Figure 1 And Figure 5As shown, in the present embodiment, the rain shower generating module comprises a spraying support, a plurality of rotatable spray heads 25 arranged on the top of the spraying support, a water storage bucket 26, a water pumping pump and a secondary water supply pump 27. The water storage bucket 26 is connected with an external water source through the water pumping pump, the plurality of rotatable spray heads 25 are connected in communication with the water storage bucket 26 through the primary or secondary water supply pump 27, the spraying support is composed of a rubber base 28, a sleeve 29 and a lifting rod 30 from bottom to top, the lifting rod 30 can slide in the vertical direction in the sleeve 29 and is connected through a locking sleeve 31, a spraying cross bar 32 is arranged on the top of the lifting rod 30, a plurality of mounting holes 33 are uniformly distributed on the spraying cross bar 32, and the rotatable spray heads 25 are arranged on the mounting holes 33. The rotatable spray heads 25 can rotate 120 degrees up and down and 360 degrees left and right, and can be coordinated in any direction. Meanwhile, the number of the rotatable spray heads 25 can be increased or decreased on the mounting holes 33 according to different rain shower requirements. In the present application, 8-20 rotatable spray heads 25 can be arranged, and the rotatable spray heads 25 can also be adjusted according to different water spray or atomization effects. According to the test requirements, the height of the rotatable spray heads 25 can be adjusted through the lifting rod 30 and fixed through the locking sleeve 31 (screw threads are processed outside the sleeve 29, the inside of the locking sleeve 31 is processed into a matching sleeve, and a slope type pressing port is opened on the side of the sleeve). The rubber base 28 uses heavy rubber as ground support, which has the effect of preventing slipping and is more beautiful. In the present application, a filter 40 can also be arranged in the water storage bucket 26 and connected in communication with the rotatable spray heads 25 through the secondary water supply pump 27.

[0043] As Figure 7As shown, in the present embodiment, the rain receiving device is provided with a planar receiving port 34 and a side receiving port 35 on the top and front panel respectively, and the planar receiving port 34 and the side receiving port 35 are provided with a rain gauge tube 36 connected with the rain amount calculation container. The planar receiving port 34 and the side receiving port 35 are designed as square funnels, and the bottom surface is designed to be inclined to the direction of the rain gauge tube 36. The rain amount calculation container is composed of a first container 37 and a second container 38 in parallel, wherein the first container 37 is connected with the planar receiving port 34 through the rain gauge tube 36, and the second container 38 is connected with the side receiving port 35 through the rain gauge tube 36, and the first container 37 and the second container 38 are provided with scale marks. The planar receiving port 34 and the side receiving port 35 are designed as funnels, which can ensure that the rainwater slides into the interior, and the bottom surface is designed to be inclined to the position of the rain gauge tube 36, which can ensure that the collected rainwater can more easily flow into the rain gauge tube 36; finally, the scale marks provided on the first container 37 and the second container 38 can be used to see the rain amount data and compare the actual situation of the data, and the secondary water supply pump 27 can be controlled to adjust the rain amount according to the specific situation.

[0044] Finally, it should be emphasized that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A circuit breaker automatic opening and closing rain test device, characterized in that: The utility model relates to an automatic opening and closing device for circuit breaker The utility model discloses an automatic opening and closing device for circuit breaker, which comprises a circuit breaker (1) and an automatic opening and closing device for fixing the circuit breaker (1), wherein the automatic opening and closing device is provided with an automatic telescopic module connected with a pull rod of the circuit breaker (1) for automatically opening and closing the circuit breaker (1). The automatic opening and closing device further comprises a support base (6) and a support frame (7) detachably arranged on any one end of the support base (6), and the support base (6) is further provided with a rotating shaft flange (9) on the other side corresponding to the support frame (7). The automatic telescopic module comprises a control system (2), an air pressure accumulator (3) and a cylinder push-pull device (4) electrically connected with the control system (2), and a pneumatic telescopic rod, wherein the air pressure accumulator (3) and the cylinder push-pull device (4) are connected through an air pipe (5), the cylinder push-pull device (4) and the pneumatic telescopic rod are also connected through the air pipe (5), and the top of the pneumatic telescopic rod is connected with the pull rod of the circuit breaker (1). The pneumatic telescopic rod comprises a slide rail (13) rotatably connected with the rotating shaft flange (9), a pneumatic cylinder (14) fixedly arranged at the bottom of the slide rail (13), and a fiber insulation pipe (15) connected with the piston rod of the pneumatic cylinder (14) and slidably matched with the slide rail (13), wherein the bottom of the fiber insulation pipe (15) is provided with a pulley block, and the top of the fiber insulation pipe (15) is provided with an equal-pressure automatic lock buckle connected with a switch through the equal-pressure automatic lock buckle. The equal-pressure automatic lock buckle comprises a lock head (16) fixedly arranged at the top of the fiber insulation pipe (15) through bolts, a circuit breaker sleeve handle (17) arranged in the lock head (16), and a spring retaining plate (19) elastically hinged to the lock head (16) through a return spring (18) at the bottom, wherein a gap is left in the middle of the lock head (16), and the circuit breaker sleeve handle (17) extends into the gap in a normal state. The top of the support frame (7) is provided with a horizontal rod (8), the left and right ends of the horizontal rod (8) are provided with a plurality of bolt holes, and the circuit breaker (1) and the switch are arranged at the two ends of the horizontal rod (8), respectively. The support frame (7) is arranged on the support base (6) through a heavy base (10), the heavy base (10) is internally provided with a heavy interlayer (11), and a plurality of hooks (12) are further arranged on the support frame (7). ​ 2. The automatic opening and closing test device for circuit breaker under rain according to claim 1, characterized in that: ​ 3. The automatic opening and closing test device for circuit breaker under rain according to claim 2, characterized in that: ​ 4. The automatic opening and closing test device for circuit breaker under rain according to claim 1, characterized in that: The pulley block comprises a first pulley and a second pulley arranged at the bottom of the fiber insulation pipe (15) through a first flange (20) and a second flange (21) respectively, and an impact steel sleeve (22) is arranged between the first flange (20) and the second flange (21), a buffer spring (23) is sleeved on the piston rod, and a protection groove (24) is further arranged outside the sliding rail (13).

5. The automatic opening and closing test device for circuit breaker according to any one of claims 1-4, characterized in that: The rain generating module comprises a spraying support, a plurality of rotatable nozzles (25) arranged on the top of the spraying support, a water storage bucket (26), a water pump and a secondary water supply pump (27), the water storage bucket (26) is connected with an external water source through the water pump, a plurality of rotatable nozzles (25) are connected with the water storage bucket (26) in communication through the secondary water supply pump (27), the spraying support is composed of a rubber base (28), a sleeve (29) and a lifting rod (30) from bottom to top, the lifting rod (30) can slide in the sleeve (29) in the vertical direction and is connected through a locking sleeve (31), a spraying cross bar (32) is further arranged on the top of the lifting rod (30), a plurality of mounting holes (33) are uniformly distributed on the spraying cross bar (32), and the rotatable nozzles (25) are arranged on the mounting holes (33).

6. The automatic opening and closing test device for circuit breaker under rain according to claim 1, characterized in that: The top and the front panel of the rain receiving device are respectively provided with a planar receiving port (34) and a side receiving port (35), the planar receiving port (34) and the side receiving port (35) are respectively provided with a rain gauge pipe (36) connected with the rain amount calculation container.

7. The automatic opening and closing test device for circuit breaker according to claim 6, characterized in that: The planar receiving port (34) and the side receiving port (35) are both designed as square funnels, and the bottom surface is inclined to the direction of the rain gauge pipe (36).

8. The automatic opening and closing test device for circuit breaker under rain according to claim 6, characterized in that: The rain amount calculation container is composed of a first container (37) and a second container (38), the first container (37) is connected with the planar receiving port (34) in communication through the rain gauge pipe (36), the second container (38) is connected with the side receiving port (35) in communication through the rain gauge pipe (36), and the first container (37) and the second container (38) are both provided with scale marks.

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