CN219245716U - Automatic switching-on/off rain test device for circuit breaker - Google Patents

Abstract

The utility model provides an automatic opening and closing rain test device for a circuit breaker, which can realize automatic opening and closing when the circuit breaker is opened, thereby greatly saving manpower and material resources and improving operation safety. The automatic switching-on/off device comprises a circuit breaker, an automatic switching-on/off tool, a rain device module and a rainfall receiving module, is customized according to the actual situation of a simulation operation site of high-voltage equipment, is applied to sites such as a simulation circuit site, and is safe and reliable in characteristics and can be operated without people after being started. The rainfall collector is applied to simulating weather raining and is tested according to test standards. The utility model is suitable for the technical field of safety operation tests of electrical equipment.

Description

Automatic switching-on/off rain test device for circuit breaker

Technical Field

The utility model relates to the technical field of safety operation tests of electrical equipment, in particular to an automatic switching-on/off rain test device for a circuit breaker.

Background

In recent years, with the continuous progress of the construction of the society of China, the electricity demand is gradually increased, and the requirements of users on the operation safety and reliability of the power grid are also higher and higher. In order to ensure that the high-voltage power grid can safely and reliably run, especially in the face of extreme weather such as heavy rainfall, the simulation rain test needs to be carried out on the electrical equipment, the purpose is to comprehensively improve the external insulation level of the power transmission line and ensure the electricity utilization safety. The common test method in the market adopts a manual rack to fix a nozzle and manually perform opening and closing operations, and tests according to the standard of 500 times of opening and closing, and the mode has the following defects:

1. manual shelf fixed nozzle: if the manual installation nozzle is used in the installation process, the manual installation nozzle is not firm, the manual installation and the disassembly are not very convenient, the repeated workload is large, and meanwhile, the manpower and material resources are increased. The rain tool is fixed and reliable, the height can be adjusted, and a series of repeated work is reduced; 2. manual reclosing test: the switching-on and switching-off is manually carried out, potential safety hazards exist in the high-voltage test, manpower and material resources are increased, the reclosing time is inaccurate, the potential threat of electric shock of personnel in the high-voltage test is solved through automatic reclosing, accurate switching-on is carried out in a specified time, and tasks are accurately executed according to the specified time; 3. rain collector: in the rain test process, a rainy day is simulated, if the rain collector is not used for collecting the rain, the rain cannot be measured, and the test cannot be carried out according to the standard requirement, so that the test is carried out through the rain collector, and the rain collector is used for collecting the measurement data, so that accurate data information can be obtained.

The prior China published utility model patent (201510958872.3) discloses a rainfall automatic measurement system and method for an electric device rainfall test, wherein the rainfall automatic measurement system is characterized in that a plurality of groups of collection funnels are arranged on a measurement column with the height of 16m every 2m, rainfall in the horizontal direction and the vertical direction is collected through different opening directions, finally the rainfall automatic measurement system is weighed after being collected by a water storage container, and finally the rainfall data of all the collection funnels are comprehensively analyzed through a data collector, and the rainfall of rainfall is displayed. However, in the above patent, only the measuring function is provided, the automatic opening and closing function is not provided, the manual operation is needed, meanwhile, the collecting hopper intelligently collects single face rainwater, and therefore the rainwater collection is uneven possibly because of the placement position of the measuring column, and the accuracy of the test result is affected.

Aiming at the problems, it is particularly important to develop a set of rain test equipment capable of automatically performing the switching-on and switching-off functions of the circuit breaker.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the automatic switching-on/off rain test device for the circuit breaker, which can realize automatic switching-on/off when the rain test of the circuit breaker is carried out, thereby greatly saving manpower and material resources and improving operation safety.

The technical scheme adopted by the utility model is as follows: comprising

A circuit breaker;

the automatic switching tool is used for fixing the circuit breaker, and an automatic telescopic module connected with the switching pull rod of the circuit breaker is arranged in the automatic switching tool and used for automatically switching on and off the circuit breaker;

the rain generating module is arranged at the other end of the circuit breaker opposite to the automatic opening and closing module and is used for automatically spraying water to the circuit breaker;

the rainfall receiving module is arranged between the automatic separation and combination tool and the rain generating module and is positioned at the side of any one of two sides of the circuit breaker, and comprises a rainfall receiving device and a rainfall calculation container which are communicated through a hose;

the automatic telescopic module comprises a control system, an air pressure energy accumulator, an air cylinder pushing shuttle and a pneumatic telescopic rod, wherein the air pressure energy accumulator and the air cylinder pushing shuttle are respectively electrically connected with the control system, the air cylinder pushing shuttle is communicated with the pneumatic telescopic rod through an air pipe, and the top of the pneumatic telescopic rod is connected with the breaker opening and closing pull rod.

Further, the automatic separating and combining tool further comprises a supporting base and a supporting frame detachably arranged at any end of the supporting base, a cross rod is arranged at the top of the supporting frame, a plurality of bolt holes are formed in the left end and the right end of the cross rod, and the circuit breaker and the switch are respectively arranged at the two ends of the cross rod; the support base corresponds the support frame opposite side still is provided with the pivot flange, control system with the cylinder promotes the round trip and is in respectively fixed the pivot flange left and right sides, pneumatic telescopic link with the pivot flange rotates to be connected, the air pressure energy storage device is fixed to be set up on the support base.

Further, the support frame is arranged on the support base through a weighting base, a weighting interlayer is arranged in the weighting base, and a plurality of hooks are further arranged on the support frame.

Further, the pneumatic telescopic rod comprises a sliding rail, a pneumatic cylinder and a fiber insulation pipe, wherein the sliding rail is connected to the flange of the rotating shaft, the pneumatic cylinder is fixedly arranged at the bottom of the sliding rail, the fiber insulation pipe is connected with a piston rod of the pneumatic cylinder and is in sliding fit with the sliding rail, a pulley block is arranged at the bottom of the fiber insulation pipe, and a pressure-equalizing automatic lock catch is arranged at the top of the fiber insulation pipe and is connected with a switch through the pressure-equalizing automatic lock catch.

Further, the automatic pressure equalizing lock catch comprises a lock head fixedly arranged at the top of the fiber insulation tube through a bolt, a breaker sleeve handle arranged in the lock head, and a spring retaining piece elastically hinged with the lock head through a reset spring at the bottom, wherein a gap is reserved in the middle of the lock head, and the breaker sleeve handle stretches into the gap in a normal state.

Further, the pulley block comprises a first pulley and a second pulley which are arranged at the bottom of the fiber insulation pipe through a first flange and a second flange respectively, an impact steel sleeve is further arranged between the first flange and the second flange, a buffer spring is sleeved on the piston rod, and a protection groove is further arranged on the outer side of the sliding rail.

Further, the module takes place to rain including spraying support, a plurality of setting and is in rotatable shower nozzle, water storage bucket, suction pump and the secondary working shaft at spraying support top, the water storage bucket is connected with outside water source through the suction pump, a plurality of rotatable shower nozzle pass through the secondary working shaft with the water storage bucket is linked together, spray support from down upwards by rubber base, sleeve, lifter are constituteed, the lifter can follow the vertical direction in the sleeve and slide and connect through locking tooth socket the lifter top still is provided with sprays the horizontal pole evenly distributed has a plurality of mounting holes on the spraying horizontal pole, rotatable shower nozzle sets up on the mounting hole.

Further, a plane receiving opening and a side receiving opening are respectively arranged on the top and the front panel of the rainfall receiving device, and the plane receiving opening and the side receiving opening are internally provided with a rainfall tube connected with the rainfall calculation container.

Furthermore, the inner sides of the plane receiving opening and the side receiving opening are both square funnel designs, and the bottom faces are obliquely designed in the direction of the rain pipe.

Finally, the rainfall calculation container is formed by combining a first container and a second container in parallel, wherein the first container is communicated with the plane receiving port through the rainfall tube, the second container is communicated with the side receiving port through the rainfall tube, and scale marks are arranged on the first container and the second container.

Compared with the prior art, the utility model has the following beneficial effects:

1. the rain system solves the problem that the fixed nozzle of the manual shelf is difficult to fix, and the rain system can be fixed and operated repeatedly to reduce the manual loss;

2. the movement is convenient in the test process of the rain system of the circuit breaker, the height can be adjusted according to the requirement, the direction angle and the like can be conveniently adjusted, and the unsafe performance of climbing operation is reduced;

3. the automatic opening and closing of the circuit breaker and the rain system is more accurate than the manual closing, and the automatic control effectively reduces the electric shock risk of personnel in the test;

4. the side receiving port is additionally arranged, so that the wind direction change condition can be effectively simulated during rain test, and the accuracy and the comprehensiveness of test data are improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of an exploded construction of the pneumatic telescoping rod;

FIG. 3 is a schematic view of an exploded construction of the fiber insulation tube;

FIG. 4 is a schematic view of the structure of the support frame;

FIG. 5 is a schematic view of the structure of the spray stand;

FIG. 6 is a schematic view of the structure of the rain gauge;

fig. 7 is a schematic view of the structure of the rain calculation container.

Detailed Description

As shown in FIG. 1, the present utility model includes

A circuit breaker 1;

the automatic switching tool is used for fixing the circuit breaker 1, and an automatic telescopic module connected with a switching pull rod of the circuit breaker 1 is arranged in the automatic switching tool and used for automatically switching on and off the circuit breaker 1;

the rain generating module is arranged at the other end of the circuit breaker 1 opposite to the automatic opening and closing module and is used for automatically spraying water to the circuit breaker 1; the rain generating module can be directly connected with a tap water pipe or water storage equipment prepared in advance, and the rain amount is controlled according to the flow quantity control requirement so as to realize the purpose of rain; meanwhile, the atomization effect can be adjusted according to different angles and different directions, the water drop size can be adjusted in a rotating mode according to actual conditions, the desired rainfall effect or atomization effect can be achieved, and the height can be adjusted according to actual conditions.

The rainfall receiving module is arranged between the automatic separating and combining tool and the rain generating module and is positioned at the side of any one of two sides of the circuit breaker 1, and comprises a rainfall receiving device and a rainfall calculation container which are communicated through a hose; the rain amount receiving device is specially designed according to the test standard, the top and the side surfaces of the rain amount receiving device are provided with receiving ports, different angles can be distributed to solve the problem of receiving the rain amount, and the height of the rain amount receiving device can be increased or hung on a bracket of the circuit breaker 1 according to the field requirement for collecting the rain amount; the main purpose of the rain calculation container is to collect and measure the rain amount at the top and side of the rain amount receiving means.

The automatic telescopic module comprises a control system 2, an air pressure energy accumulator 3 and an air cylinder pushing shuttle 4 which are respectively and electrically connected with the control system 2, and a pneumatic telescopic rod, wherein the air pressure energy accumulator 3 is communicated with the air cylinder pushing shuttle 4, the air cylinder pushing shuttle 4 is communicated with the pneumatic telescopic rod through an air pipe 5, and 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 completes tasks according to the set and selected time and time, executes the tasks for how many times, completes all automatic control, and can realize unmanned operation and unattended operation after starting; the air pressure accumulator 3 is designed for ensuring that the end point air pressure can meet the instantaneous pneumatic force; the pneumatic telescopic rod is movably connected with the opening and closing pull rod end of the breaker 1, and pulls the switch according to actual requirements to achieve the purpose of automatically opening and closing the breaker 1.

As shown in fig. 2, 3, 4 and 5, in this embodiment, the automatic separating and combining tool further includes a support base 6 and a support frame 7 detachably disposed on any end of the support base 6, a cross rod 8 is disposed at the top of the support frame 7, a plurality of bolt holes are disposed at left and right ends of the cross rod 8, the circuit breaker 1 and the switch are disposed at two ends of the cross rod 8, and a plurality of bolt holes can be disposed in different sizes to adapt to circuit breakers 1 of different brands or sizes and models; the support base 6 corresponds the support frame 7 opposite side still is provided with pivot flange 9, control system 2 with the cylinder promotes round trip 4 and fixedly sets up respectively pivot flange 9 left and right sides, pneumatic telescopic link with pivot flange 9 rotates to be connected, air pressure accumulator 3 is fixed to be set up on the support base 6, pivot flange 9 with still be provided with vibration prevention support square tube 39 between the support base 6, because the pulling force that the cylinder promotes round trip 4 to use at every turn reaches 20KG, vibration prevention support square tube 39 can avoid equipment to cause the damage because of long-term atress. The supporting frame 7 is arranged on the supporting base 6 through a weighting base 10, a weighting interlayer 11 is arranged in the weighting base 10, concrete is filled in the weighting interlayer 11 in the utility model, the weight of the circuit breaker is relatively heavy, the weighting base is required to balance and is not easy to fall down to increase the weight, a plurality of hooks 12 are further arranged on the supporting frame 7, and other line sensors or more electronic equipment can be placed on the hooks 12 if needed in a test site. The pneumatic telescopic rod comprises a sliding rail 13, a pneumatic cylinder 14 and a fiber insulation tube 15, wherein the sliding rail 13 is rotationally connected to the rotating shaft flange 9, the pneumatic cylinder 14 is fixedly arranged at the bottom of the sliding rail 13, the fiber insulation tube 15 is connected with a piston rod of the pneumatic cylinder 14 and is in sliding fit with the sliding rail 13, a pulley block is arranged at the bottom of the fiber insulation tube 15, and a pressure-equalizing automatic lock catch is arranged at the top of the fiber insulation tube, and the pressure-equalizing automatic lock catch is connected with a switch. The automatic pressure equalizing lock catch comprises a lock head 16 fixedly arranged at the top of the fiber insulation tube 15 through a bolt, a breaker sleeve handle 17 arranged inside the lock head 16, and a spring retaining piece 19 with the bottom elastically hinged with the lock head 16 through a reset spring 18, wherein a gap is reserved in the middle of the lock head 16, and the breaker sleeve handle 17 stretches into the gap in a normal state. The pulley block comprises a first pulley and a second pulley which are respectively arranged at the bottom of the fiber insulation pipe 15 through a first flange 20 and a second flange 21, 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 sliding rail 13. According to the utility model, the air compression accumulator 3 is used for storing energy and driving the pneumatic cylinder 14 to start, so that the fiber insulation tube 15 slides back and forth on the sliding rail 13, and the automatic differentiation function of the circuit breaker 1 is realized.

In the above scheme, the fiber insulation pipe 15 can play an insulation role, and can not discharge the ground and equipment, so that the safety of the equipment is protected; the protection groove 24 is designed to protect the protection cover, so as to prevent personal safety accidents caused by careless contact during the automatic operation; the automatic pressure equalizing lock catch is designed for movably connecting the pressure equalizing lock catch with the circuit breaker 1, by the method, the movable hand-pressing lock catch and the automatic back-locking can be realized, a certain movable space is arranged in the ring, the pressure equalizing and the connecting lock catch can be realized, and the automatic pressure equalizing lock catch can freely move and can carry out back-and-forth operation in a designated direction during automatic separation; the pulley block is fixed on the fiber insulation pipe 15 after the bolts are tightened, and the pulley block cooperates with the sliding rail 13 to perform reciprocating motion, so that the pulley block does not deviate from a track, the operation process is automatically controlled, and the conditions of deviation, error, overlarge force and the like are avoided; the impact steel sleeve 22 is designed into a round shape, is designed according to the weight and the strength of the circuit breaker, and can easily separate and close by approaching equal strength, and the problem can be solved only by the method because the air pressure problem cannot be too large or too small; the buffer spring 23 effectively reduces the impact force in return and avoids damaging the equipment because the equipment is easily damaged due to the too high speed of the return process.

As shown in fig. 6, in this embodiment, the rain generating module includes a spraying support, a plurality of rotatable spray heads 25 disposed at the top of the spraying support, a water storage tank 26, a water pump and a secondary water supply pump 27, the water storage tank 26 is connected with an external water source through the water pump, a plurality of rotatable spray heads 25 are communicated with the water storage tank 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 sleeve 29 along a vertical direction and is connected through a locking tooth socket 31, a spraying cross rod 32 is further disposed at the top of the lifting rod 30, a plurality of mounting holes 33 are uniformly distributed on the spraying cross rod 32, and the rotatable spray heads 25 are disposed on the mounting holes 33. The rotatable spray head 25 can rotate up and down by 120 degrees and can rotate left and right by 360 degrees to coordinate 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 requirements, in the utility model, 8-20 rotatable spray heads 25 can be arranged, and the rotatable spray heads 25 can be adjusted according to different spray or atomization effects; the height of the rotatable nozzle 25 can be adjusted through the lifting rod 30 according to the test requirement, and the rotatable nozzle is fixed through the locking tooth socket 31 (screw threads are processed outside the sleeve 29, the inner side of the locking tooth socket 31 is processed into an adaptive tooth socket, and a slope type compression opening is formed at the edge of the tooth socket); the rubber base 28 uses weighted rubber as a ground support, which provides a slip-resistant effect and is also more attractive. In the present utility model, a filter 40 may be provided in the water storage tub 26 and may communicate with the rotatable head 25 through the secondary water supply pump 27.

As shown in fig. 7, in this embodiment, a planar receiving opening 34 and a side receiving opening 35 are respectively provided on the top and the front panel of the rain gauge, and a rain pipe 36 connected to the rain gauge calculation container is provided in each of the planar receiving opening 34 and the side receiving opening 35. The inner sides of the plane receiving opening 34 and the side receiving opening 35 are both square funnel designs, and the bottom surface is inclined towards the direction of the rain pipe 36. The rainfall calculation container is formed by combining a first container 37 and a second container 38 in parallel, wherein the first container 37 is communicated with the plane receiving port 34 through the rainfall tube 36, the second container 38 is communicated with the side receiving port 35 through the rainfall tube 36, and scale marks are arranged on the first container 37 and the second container 38. The funnel-shaped plane receiving opening 34 and the side receiving opening 35 can ensure that rainwater slides into the interior, wherein the bottom is designed as an inclined plane and inclines to the position of the rainfall tube 36, so that the collected rainwater can flow into the rainfall tube 36 more easily; finally, the rain amount data can be seen through the scale marks arranged on the first container 37 and the second container 38, the actual condition of the data is compared and analyzed, and the secondary water supply pump 27 is controlled to adjust the rain amount according to the specific condition.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.

Claims (10)

1. An automatic divide-shut brake rain test device of circuit breaker, its characterized in that: comprising

A circuit breaker (1);

the automatic switching tool is used for fixing the circuit breaker (1), and an automatic telescopic module connected with a switching pull rod of the circuit breaker (1) is arranged in the automatic switching tool and used for automatically switching on and off the circuit breaker (1);

the rain generating module is arranged at the other end of the circuit breaker (1) opposite to the automatic opening and closing module and is used for automatically spraying water to the circuit breaker (1);

the rainfall receiving module is arranged between the automatic separating and combining tool and the rain generating module and is positioned at the side of any one of two sides of the circuit breaker (1), and comprises a rainfall receiving device and a rainfall calculation container which are communicated through hoses;

the automatic telescopic module comprises a control system (2), an air pressure energy accumulator (3) and an air cylinder pushing shuttle (4) which are electrically connected with the control system (2) respectively, and a pneumatic telescopic rod, wherein the air pressure energy accumulator (3) is communicated with the air cylinder pushing shuttle (4) and the air cylinder pushing shuttle (4) is communicated with the pneumatic telescopic rod through an air pipe (5), and the top of the pneumatic telescopic rod is connected with the switching-on and switching-off pull rod of the circuit breaker (1).

2. The automatic opening and closing rain test device for a circuit breaker according to claim 1, wherein: the automatic separating and combining tool also comprises a supporting base (6) and a supporting frame (7) which is detachably arranged at any end of the supporting base (6), wherein a cross rod (8) is arranged at the top of the supporting frame (7), a plurality of bolt holes are formed in the left end and the right end of the cross rod (8), and the circuit breaker (1) and the switch are respectively arranged at the two ends of the cross rod (8); the support base (6) is corresponding to the other side of the support frame (7) and is further provided with a rotating shaft flange (9), the control system (2) and the cylinder pushing shuttle (4) are respectively and fixedly arranged on the left side and the right side of the rotating shaft flange (9), the pneumatic telescopic rod is rotationally connected with the rotating shaft flange (9), and the air pressure energy accumulator (3) is fixedly arranged on the support base (6).

3. The automatic opening and closing rain test device for the circuit breaker according to claim 2, wherein: the support frame (7) is arranged on the support base (6) through a weighting base (10), a weighting interlayer (11) is arranged in the weighting base (10), and a plurality of hooks (12) are further arranged on the support frame (7).

4. The automatic switching-on/switching-off rain test device for a circuit breaker according to claim 3, wherein: the pneumatic telescopic rod comprises a sliding rail (13) which is rotationally connected to the rotating shaft flange (9), a pneumatic cylinder (14) which is fixedly arranged at the bottom of the sliding rail (13) and a fiber insulation tube (15) which is connected with a piston rod of the pneumatic cylinder (14) and is in sliding fit with the sliding rail (13), a pulley block and an automatic pressure equalizing lock catch are arranged at the bottom of the fiber insulation tube (15), and the automatic pressure equalizing lock catch is connected with a switch.

5. The automatic opening and closing rain test device for the circuit breaker according to claim 4, wherein: the automatic pressure equalizing lock catch comprises a lock head (16) fixedly arranged at the top of the fiber insulation tube (15) through a bolt, a breaker sleeve handle (17) arranged inside the lock head (16) and a spring retaining piece (19) with the bottom elastically hinged with the lock head (16) through a reset spring (18), a gap is reserved in the middle of the lock head (16), and the breaker sleeve handle (17) stretches into the gap in a normal state.

6. The automatic opening and closing rain test device for the circuit breaker according to claim 4, wherein: the pulley block comprises a first pulley and a second pulley which are arranged at the bottom of the fiber insulation pipe (15) through a first flange (20) and a second flange (21), 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 formed in the outer side of the sliding rail (13).

7. An automatic switching-off and switching-on rain test device for a circuit breaker according to any one of claims 1 to 6, wherein: the rain generating module comprises a spraying support, a plurality of rotatable spray heads (25) arranged at the top of the spraying support, a water storage barrel (26), a water suction pump and a secondary water supply pump (27), wherein the water storage barrel (26) is connected with an external water source through the water suction pump, the rotatable spray heads (25) are communicated with the water storage barrel (26) 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) along the vertical direction and is connected through a locking tooth socket (31), a spraying cross rod (32) is further arranged at the top of the lifting rod (30), a plurality of mounting holes (33) are uniformly distributed in the spraying cross rod (32), and the rotatable spray heads (25) are arranged on the mounting holes (33).

8. The automatic opening and closing rain test device for a circuit breaker according to claim 1, wherein: the rain amount receiving device is characterized in that a plane receiving opening (34) and a side receiving opening (35) are respectively arranged on the top and the front panel of the rain amount receiving device, and rain amount pipes (36) connected with the rain amount calculating container are respectively arranged in the plane receiving opening (34) and the side receiving opening (35).

9. The automatic opening and closing rain test device for the circuit breaker according to claim 8, wherein: the inner sides of the plane receiving opening (34) and the side receiving opening (35) are square funnels, and the bottom faces are inclined towards the direction of the rainfall tube (36).

10. The automatic opening and closing rain test device for the circuit breaker according to claim 8, wherein: the rainfall calculation container is formed by combining a first container (37) and a second container (38) in parallel, wherein the first container (37) is communicated with the plane receiving port (34) through the rainfall pipe (36), the second container (38) is communicated with the side receiving port (35) through the rainfall pipe (36), and scale marks are arranged on the first container (37) and the second container (38).

Images