Portable relay protection test equipment

Abstract

The invention belongs to the technical field of relay protection test equipment, and relates to portable relay protection test equipment. Comprising an equipment body, a control piece is arranged in the equipment body, supporting legs are fixedly installed on the four sides of the lower end of the equipment body, a protection structure is arranged in the equipment body, and the protection structure comprises a dustproof net, a filter net, a rotating rod, a cam, a U-shaped frame, a moving rod, a knocking plate, a hit plate and a reset spring. When the moving rod moves, a knocking plate on the side wall of the moving rod can be driven to knock the surface of the dustproof net, so that dust on the outer side of the dustproof net falls, the dust is prevented from blocking meshes of the dustproof net, the dust is prevented from entering the equipment body to influence the heat dissipation effect, and the practicability of the device is improved; and a handle is arranged at the upper end of the equipment body, so that a user can lift up the equipment body through the handle to carry the test equipment, a worker can conveniently carry the equipment body, and the portability of the device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of relay protection test equipment, and in particular relates to a portable relay protection test equipment. Background Art

[0002] The relay protection test equipment is a new type of intelligent testing instrument. When a fault or abnormal operating condition occurs in the power system of a smart substation, the relay protection test equipment automatically removes the faulty equipment from the system in the shortest possible time and smallest area, or gives a signal to the on-duty personnel to eliminate the root cause of the abnormal condition, so as to reduce or avoid damage to the equipment and the impact on power supply to adjacent areas.

[0003] For example, a portable relay protection test device disclosed in publication number CN220983397U has heat dissipation holes. When the test device is in use, heat will be generated. At this time, the heat will be dissipated through the heat dissipation holes to avoid heat accumulation in the shell, thereby improving the heat dissipation effect of the test device.

[0004] However, when in use, the heat dissipation structure can only be ventilated and dissipated through the heat dissipation holes. After the device has been working for a long time, dust will enter the shell through the heat dissipation holes and then enter the test equipment, thereby affecting the normal heat dissipation of the device, easily causing local overheating and resulting in equipment damage. In view of this, we propose a portable relay protection test equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a portable relay protection test device to solve the problems existing in the prior art.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A portable relay protection test device includes a device body, a control component is arranged inside the device body, support legs are fixedly installed on four sides of the lower end of the device body, and a protective structure is arranged inside the device body, and the protective structure includes:

[0008] The dustproof net is fixedly installed on one side of the equipment body, and a filter is fixedly installed on the other side of the equipment body. The upper and lower ends of the inner wall of the equipment body are rotatably connected to a rotating rod through a shaft sleeve, and a cam is fixedly installed on the surface of the rotating rod;

[0009] U-shaped frame, the U-shaped frame is fixedly mounted on the side wall of the dustproof net, a moving rod is passed through the side wall of the U-shaped frame, a knocking plate is fixedly mounted on one end of the moving rod, and a striking plate is fixedly mounted on the other end of the moving rod. A reset spring is arranged on the surface of the moving rod, and a cleaning structure for cleaning the outside of the dustproof net is arranged on the upper end of the equipment body;

[0010] The brackets are slidably connected to the outer wall of the dust screen, the inner wall of the bracket is provided with a slot, one end of an extrusion spring is fixedly installed on the inner wall of the slot, a slide plate is fixedly installed on the other end of the extrusion spring, and a scraper is fixedly installed on the side wall of the slide plate;

[0011] The slide groove is opened on the outer side of the dustproof net, and multiple groups of impact blocks are fixedly installed on the inner wall of the slide groove. The side wall of the scraper is fixedly installed with a contact block. The end of the moving rod away from the impact plate passes through the side wall of the dustproof net and is fixedly installed with a connecting block. The lower end of the connecting block is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged to the upper end of the bracket.

[0012] Furthermore, the cleaning structure includes a fixed frame fixedly installed on the upper end of the equipment body, a wind bin is fixedly installed on the upper end of the fixed frame, the upper end of the rotating rod passes through the side wall of the fixed frame and is fixedly installed with a wind wheel, a wind hood is fixedly installed on the surface of the wind bin, a ventilation pipe is fixedly installed on the side wall of the wind bin, a corrugated pipe is fixedly installed on the lower end of the ventilation pipe, one end of an L-shaped air duct is fixedly installed on the lower end of the corrugated pipe, and an air spray frame is fixedly installed on the other end of the L-shaped air duct, and a movable structure is arranged inside the fixed frame.

[0013] Furthermore, the movable structure includes a reciprocating screw fixedly mounted on the surface of the rotating rod, a sleeve is threadedly connected to the surface of the reciprocating screw, one end of a connecting plate is fixedly mounted on the side wall of the sleeve, the other end of the connecting plate is fixedly connected to the upper end of the L-shaped air duct, and a heat dissipation structure is arranged inside the equipment body.

[0014] Furthermore, the heat dissipation structure includes a cooling box fixedly installed on both sides of the inner wall of the equipment body, a hollow cylinder is fixedly installed on both sides of the inner wall of the equipment body, an expansion airbag is fixedly installed on the inner wall of the hollow cylinder, one end of the expansion airbag is in contact with the side wall of the control component, and a gear plate is fixedly installed on the other end of the expansion airbag, and the lower end of the cooling box is rotatably connected to a control valve, and a rotating gear is fixedly installed on the lower end surface of the control valve.

[0015] Furthermore, one end of the return spring is fixedly connected to the side wall of the U-shaped frame, and the other end of the return spring is fixedly connected to the side wall of the struck plate.

[0016] Furthermore, a motor is fixedly mounted on the inner wall of the device body, a first bevel gear is fixedly mounted on the surface of the motor output shaft, and a second bevel gear is fixedly mounted on the surface of the rotating rod.

[0017] Furthermore, three groups of cams and U-shaped frames are provided, and the three groups of cams and U-shaped frames are all arranged inside the device body.

[0018] Furthermore, a sliding opening adapted to the moving track of the connecting plate is opened on the side wall of the fixing frame, the L-shaped air duct and the bellows are in a connected state, and a handle is fixedly installed on the upper end of the equipment body.

[0019] Furthermore, multiple groups of extrusion springs are fixedly installed, and the multiple groups of extrusion springs are fixedly installed on the inner wall of the slot. The number of brackets is twice that of the connecting block, and the two groups of brackets are connected by a fixing rod.

[0020] Furthermore, the impact block and the contact block are both configured as arc-shaped structures and are the same in number, and the scraper is in contact with the outer side wall of the dustproof net.

[0021] The present invention has the following beneficial effects:

[0022] 1. The portable relay protection test equipment is provided with a protective structure so as to block the dust flying in from the outside. When the dust on the surface of the dustproof net is large, the cam rotates to contact the impact plate and drive it to move. When the impact plate moves, it will move through the moving rod of its side wall and drive the knocking plate to knock on the surface of the dustproof net, so that the dust falls off. At the same time, when the moving rod moves, it will drive the connecting block of its side wall to move, and the movement of the connecting block drives the scraper to move to clean the outer surface of the dustproof net. When the scraper moves, the contact block of its side wall will contact the impact block and move. At this time, the scraper will be squeezed and move toward the inside of the groove, so that the scraper is periodically separated from the surface of the dustproof net, so as to avoid accumulation on the upper end of the scraper when cleaning the dust, further improving the use effect of the device, and by providing a handle on the upper end of the device body, it is convenient for the staff to carry the device body, thereby improving the portability of the device.

[0023] 2. The portable relay protection test equipment is provided with a cleaning structure and a moving structure so as to facilitate secondary cleaning of the dust on the outside of the dustproof net. The rotation of the rotating rod drives the wind wheel at the upper end to rotate. At this time, the wind wheel rotates to suck the outside air into the wind bin through the wind cover. At this time, these gases will enter the ventilation frame through the L-shaped air duct and then be sprayed toward the dustproof net on its side. The cam knocks on the dustproof net, so as to better clean the dust accumulated on the surface of the dustproof net.

[0024] 3. The portable relay protection test equipment is provided with a heat dissipation device so as to facilitate quantitative heat dissipation inside the equipment body. When the control components inside the equipment body are working and the temperature is too high, the expansion airbag will expand due to the heat. At this time, the expansion airbag will move to the outside of the hollow tube. The movement of the expansion airbag will drive the tooth plate on its side wall to move, and the movement of the tooth plate will make it mesh with the rotating gear. As the tooth plate moves, the rotating gear and the control valve inside it will be driven to rotate. When the control valve is rotated, the cooling box will be started to spray cold air to dissipate the heat inside the equipment body, and as the control valve continues to rotate under the movement of the tooth plate, more gas will be sprayed from the inside of the cooling box. When the temperature inside the equipment body is no longer high, the tooth plate will drive the control valve to return to the normal position, thereby closing the cooling box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0027] Figure 3 It is a schematic diagram of a partially enlarged structure of the present invention.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the heat dissipation structure of the present invention.

[0029] Figure 5 It is a three-dimensional structural schematic diagram of the cleaning structure of the present invention.

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the protective structure of the present invention.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the dustproof net part from the side of the present invention.

[0032] Figure 8 It is a schematic diagram of a partially cutaway three-dimensional structure of the slideway of the present invention.

[0033] Fig. 9 This is a schematic diagram of the enlarged structure of part A of the present invention.

[0034] Among them: 1. Equipment body; 2. Control part; 3. Protection structure; 4. Cleaning structure; 5. Moving structure; 6. Heat dissipation structure; 7. Support leg; 8. Motor; 9. First bevel gear; 10. Second bevel gear; 11. Slide; 12. Handle; 31. Dust screen; 32. Filter screen; 33. Rotating rod; 34. Cam; 35. U-shaped frame; 36. Moving rod; 37. Knocking plate; 38. Struck plate; 39. Reset spring; 40. Fixed frame; 41. Wind bin; 42. Wind wheel; 43. Wind cover; 44. .ventilation duct; 45. bellows; 46. L-shaped duct; 47. air jet rack; 51. reciprocating screw rod; 52. sleeve; 53. connecting plate; 61. cooling box; 62. hollow cylinder; 69. expansion airbag; 63. tooth plate; 64. control valve; 65. rotating gear; 310. bracket; 311. notch; 312. extrusion spring; 313. slide plate; 314. scraper; 315. slide groove; 316. impact block; 317. contact block; 318. connecting block; 319. connecting rod; 13. fixing rod. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] like Figure 1-9As shown, the present invention provides a technical solution: a portable relay protection test device, comprising a device body 1, a control part 2 is arranged inside the device body 1, support legs 7 are fixedly installed on four sides of the lower end of the device body 1, a protective structure 3 is arranged inside the device body 1, the protective structure 3 comprises a dustproof net 31 fixedly installed on one side of the device body 1, a filter screen 32 is fixedly installed on the other side of the device body 1, a rotating rod 33 is rotatably connected to the upper and lower ends of the inner wall of the device body 1 through a shaft sleeve, a cam 34 is fixedly installed on the surface of the rotating rod 33, a U-shaped frame 35 is fixedly installed on the side wall of the dustproof net 31, a moving rod 36 is penetrated through the side wall of the U-shaped frame 35, a knocking plate 37 is fixedly installed on one end of the moving rod 36, a striking plate 38 is fixedly installed on the other end of the moving rod 36, and a reset spring 39 is arranged on the surface of the moving rod 36. A cleaning structure 4 for cleaning the outside of the dustproof net 31 is provided at the upper end of the equipment body 1. A plurality of groups of brackets 310 are slidably connected to the outer wall of the dustproof net 31. A slot 311 is provided on the inner wall of the bracket 310. One end of an extrusion spring 312 is fixedly installed on the inner wall of the slot 311. A slide plate 313 is fixedly installed on the other end of the extrusion spring 312. A scraper 314 is fixedly installed on the side wall of the slide plate 313. A slide groove 315 is provided on the outer side surface of the dustproof net 31. A plurality of groups of impact blocks 316 are fixedly installed on the inner wall of the slide groove 315. A contact block 317 is fixedly installed on the side wall of the scraper 314. The end of the moving rod 36 away from the impact plate 38 passes through the side wall of the dustproof net 31 and is fixedly installed with a connecting block 318. One end of a connecting rod 319 is hinged at the lower end of the connecting block 318, and the other end of the connecting rod 319 is hinged to the upper end of the bracket 310.

[0037] The cleaning structure 4 includes a fixed frame 40 fixedly mounted on the upper end of the equipment body 1, a wind bin 41 is fixedly mounted on the upper end of the fixed frame 40, the upper end of the rotating rod 33 passes through the side wall of the fixed frame 40 and is fixedly mounted with a wind wheel 42, a wind cover 43 is fixedly mounted on the surface of the wind bin 41, a ventilation pipe 44 is fixedly mounted on the side wall of the wind bin 41, a bellows 45 is fixedly mounted on the lower end of the ventilation pipe 44, one end of an L-shaped air duct 46 is fixedly mounted on the lower end of the bellows 45, and an air spray frame 47 is fixedly mounted on the other end of the L-shaped air duct 46, and a moving structure 5 is arranged inside the fixed frame 40, and the moving structure 5 includes a reciprocating screw rod 51 fixedly mounted on the surface of the rotating rod 33, and the surface of the reciprocating screw rod 51 A sleeve 52 is threadedly connected, one end of a connecting plate 53 is fixedly installed on the side wall of the sleeve 52, and the other end of the connecting plate 53 is fixedly connected to the upper end of the L-shaped air duct 46. A heat dissipation structure 6 is arranged inside the equipment body 1, and the heat dissipation structure 6 includes a cooling box 61 fixedly installed on both sides of the inner wall of the equipment body 1, and a hollow cylinder 62 is fixedly installed on both sides of the inner wall of the equipment body 1, and an expansion airbag 69 is fixedly installed on the inner wall of the hollow cylinder 62, one end of the expansion airbag 69 is in contact with the side wall of the control component 2, and the other end of the expansion airbag 69 is fixedly installed with a gear plate 63, and the lower end of the cooling box 61 is rotatably connected to a control valve 64, and a rotating gear 65 is fixedly installed on the lower end surface of the control valve 64.

[0038] Specifically, the interior of the expansion airbag 69 is filled with carbon dioxide gas. When the external ambient temperature rises, the volume of the carbon dioxide gas expands when heated, so that the volume of the expansion airbag 69 gradually increases during the process of rising external temperature. However, due to the limitation of the internal space of the hollow cylinder 62, the direction of the volume increase of the expansion airbag 69 is toward the side of the rotating gear 65, so that the expansion airbag 69 can push the gear plate 63 to slide along the inside of the hollow cylinder 62.

[0039] Specifically, the protective structure 3 of the technical solution of the present invention includes: a dustproof net 31, a filter screen 32, a rotating rod 33, a cam 34, a U-shaped frame 35, a moving rod 36, a knocking plate 37, a striking plate 38, a reset spring 39, a bracket 310, a notch 311, an extrusion spring 312, a slide plate 313, a scraper 314, a slide groove 315, a striking block 316, a contact block 317, a connecting block 318, and a connecting rod 319.

[0040] In one embodiment of the present invention, a protective structure 3 is provided to block dust flying in from the outside, and dustproof nets 31 and filters 32 are provided on both sides of the device body 1 to block dust in the working environment. The device body 1 is provided for testing. When in use, the user needs to place the device stably on a desktop or the like through the four sets of supporting legs 7 at its lower end, and then the user can perform testing.

[0041] At the same time, when a lot of dust accumulates on the surface of the dustproof net 31 on the side wall of the device body 1, the user can start the motor 8 to work. At this time, the output shaft of the motor 8 rotates to drive the first bevel gear 9 on its surface to rotate, and the first bevel gear 9 rotates to drive the second bevel gear 10 meshing with it to rotate. The rotation of the second bevel gear 10 will drive the rotating rod 33 inside it to rotate, and the rotation of the rotating rod 33 will drive the three groups of cams 34 on its surface. The cam 34 rotates to contact the impact plate 38 and drive it to move. At this time, when the impact plate 38 moves, it will move through the moving rod 36 on its side wall and squeeze the reset spring 39 on its side wall, so as to facilitate the subsequent return to the original position through the reset spring 39.

[0042] When the moving rod 36 moves, it will also drive the knocking plate 37 on its side wall to knock on the surface of the dustproof net 31, so that the dust on the outside of the dustproof net 31 falls off, preventing dust from clogging the mesh holes of the dustproof net 31, thereby preventing dust from entering the interior of the equipment body 1 and affecting the heat dissipation effect, thereby improving the practicality of the device.

[0043] When the moving rod 36 drives the knocking plate 37 to knock, the moving rod 36 also drives the connecting block 318 of the side wall to move. At this time, the movement of the connecting block 318 drives the connecting rod 319 of the side wall to move. The movement of the connecting rod 319 drives the bracket 310 hinged thereto to move. The movement of one group of brackets 310 also drives the movement of another group of brackets 310 through the fixed rod 13. The movement of the bracket 310 also drives the scraper 314 inside it to move to clean the outer surface of the dustproof net 31, and when the scraper 314 moves, its side The arc surface of the contact block 317 of the wall will contact the arc surface of the impact block 316. At this time, the contact block 317 drives the scraper 314 to move outward to a certain position. At this time, the scraper 314 is squeezed and moves toward the inside of the slot 311 and squeezes the slide plate 313 and the squeezing spring 312, so that the scraper 314 is periodically separated from the surface of the dustproof net 31, thereby avoiding accumulation of dust on the upper end of the scraper 314 when cleaning dust, further improving the use efficiency of the device, and subsequently the scraper 314 will return to the right position through the elastic force of the squeezing spring 312 to continue the cleaning work.

[0044] Furthermore, by providing a handle 12 at the upper end of the device body 1 , the user can lift the device body 1 by the handle 12 to carry the test device, thereby making it convenient for the staff to carry the device body 1 and improving the portability of the device.

[0045] By providing a cleaning structure 4 and a movable structure 5, it is convenient to perform secondary cleaning of the dust on the outside of the dustproof net 31. When knocking on the inner side of the dustproof net 31, the rotating rod 33 needs to be rotated. At this time, the rotation of the rotating rod 33 drives the wind wheel 42 at its upper end to rotate. At this time, the wind wheel 42 rotates to suck the outside air into the wind bin 41 through the wind cover 43. At this time, these gases will be discharged to the outside through the ventilation pipe 44. At this time, these gases will enter the inside of the air spray frame 47 along the bellows 45 and the L-shaped air duct 46 and then be sprayed toward the dustproof net 31 on its side, thereby cooperating with the cam 34 to knock on the inside of the dustproof net 31, so as to better clean the dust accumulated on the surface of the dustproof net 31.

[0046] And when the rotating rod 33 rotates, it will also drive the reciprocating screw 51 on its surface to rotate. The rotation of the reciprocating screw 51 will drive the sleeve 52 threadedly connected on its surface to move up and down. The movement of the sleeve 52 will drive the connecting plate 53 and the L-shaped air duct 46 of its side wall to move, so that the air spray frame 47 can move up and down to clean the outer surface of the dustproof net 31 in a wider range, further improving the use effect of the device.

[0047] By setting up the heat dissipation structure 6, it is convenient to perform quantitative heat dissipation work inside the device body 1. When the control component 2 inside the device body 1 works and the temperature is too high, the expansion airbag 69 is in contact with the side wall of the control component 2 and is quickly heated and expanded. At this time, the expansion airbag 69 will move to the outside of the hollow cylinder 62. The movement of the expansion airbag 69 will drive the tooth plate 63 on its side wall to move. The movement of the tooth plate 63 makes it mesh with the rotating gear 65. As the tooth plate 63 moves, it will drive the rotating gear 6 5 and the control valve 64 inside it rotate. When the control valve 64 is rotated, the cooling box 61 at its upper end will be started to spray cold air to dissipate heat inside the equipment body 1, and as the control valve 64 continues to rotate under the continuous movement of the tooth plate 63, more gas will be sprayed from the inside of the cooling box 61. At this time, when the temperature inside the equipment body 1 is no longer high, the expansion airbag 69 will return to the center and drive the tooth plate 63 to move in the reverse direction. At this time, the rotating gear 65 will drive the control valve 64 to return to the center, thereby gradually closing the cooling box 61.

[0048] Please continue reading Figure 1-Figure 9 One end of the return spring 39 is fixedly connected to the side wall of the U-shaped frame 35, and the other end of the return spring 39 is fixedly connected to the side wall of the striking plate 38. The inner wall of the device body 1 is fixedly installed with a motor 8, and the surface of the output shaft of the motor 8 is fixedly installed with a first bevel gear 9. The surface of the rotating rod 33 is fixedly installed with a second bevel gear 10. The cam 34 and the U-shaped frame 35 are each provided with three groups. The three groups of cams 34 and the U-shaped frame 35 are all arranged inside the device body 1. The side wall of the fixed frame 40 is provided with a groove corresponding to the moving track of the connecting plate 53. The adapter slide 11, the L-shaped air duct 46 and the bellows 45 are in a connected state, a handle 12 is fixedly installed on the upper end of the equipment body 1, multiple groups of extrusion springs 312 are fixedly installed, and the multiple groups of extrusion springs 312 are fixedly installed on the inner wall of the groove 311, the number of brackets 310 is twice that of the connecting blocks 318, and the two groups of brackets 310 are connected by a fixing rod 13, the impact block 316 and the contact block 317 are both set to an arc structure and the number is the same, and the scraper 314 is in contact with the outer wall of the dustproof net 31.

[0049] During operation, a handle 12 is provided at the upper end of the device body 1, so that the user can lift the device body 1 through the handle 12 to carry the test device. The user needs to place the device stably on a desktop or the like through the four sets of support legs 7 at the lower end, and then the user can perform the test. The dustproof net 31 and the filter 32 are used to block the dust in the working environment. When a lot of dust accumulates on the surface of the dustproof net 31 on the side wall of the device body 1, the motor 8 can be started to rotate its output shaft to drive the first bevel gear 9 to rotate. The rotation of the first bevel gear 9 drives the second bevel gear 10 to rotate. The rotation of the second bevel gear 10 drives the rotating rod 33 to rotate. The rotation of the rotating rod 33 drives the surface The three groups of cams 34 are connected to the impact plate 38 by the rotation of the cam 34, and the impact plate 38 is driven to move. At this time, when the impact plate 38 moves, it will move through the moving rod 36 of its side wall and squeeze the return spring 39 of its side wall. When the moving rod 36 moves, it will also drive the knocking plate 37 to knock on the surface of the dustproof net 31, so that the dust on the outside of the dustproof net 31 falls off. When the moving rod 36 moves, it will also drive the connecting block 318 to move. The movement of the connecting block 318 drives the connecting rod 319 to move. The movement of the connecting rod 319 drives the bracket 310 hinged thereto to move. The movement of the bracket 310 will also drive the scraper 314 to move to clean the outer surface of the dustproof net 31. When the scraper 314 moves, the contact of its side wall The arc surface of the contact block 317 will contact the arc surface of the impact block 316 and move outward. At this time, the scraper 314 will be squeezed and move toward the inside of the slot 311 and squeeze the slide plate 313 and the squeezing spring 312, so that the scraper 314 is periodically separated from the surface of the dustproof net 31. Subsequently, the scraper 314 will return to the right position through the elastic force of the squeezing spring 312 to continue the cleaning work. The rotation of the rotating rod 33 drives the wind wheel 42 at its upper end to rotate. At this time, the wind wheel 42 rotates to suck the outside air into the wind bin 41 through the wind cover 43. At this time, these gases will be discharged outward through the ventilation pipe 44. At this time, these gases will enter the inside of the air spray rack 47 along the bellows 45 and the L-shaped air duct 46 and then The dust-proof net 31 on its side is sprayed for cleaning. When the rotating rod 33 rotates, the reciprocating screw 51 on its surface is also driven to rotate. The rotation of the reciprocating screw 51 drives the sleeve 52 connected by thread on its surface to move up and down. The movement of the sleeve 52 drives the connecting plate 53 and the L-shaped air duct 46 on its side wall to move, so that the air-spraying frame 47 can move up and down to clean the outer surface of the dust-proof net 31 in a wider range. When the control part 2 is working and the temperature is too high, the expansion airbag 69 is in contact with the side wall of the control part 2 and is quickly heated and expanded. At this time, the expansion airbag 69 moves to the outside of the hollow tube 62. The movement of the expansion airbag 69 drives the toothed plate 63 on its side wall to move.The tooth plate 63 is moved to mesh with the rotating gear 65. As the tooth plate 63 moves, the rotating gear 65 and the control valve 64 inside it are driven to rotate. When the control valve 64 is rotated, the cooling box 61 at its upper end is activated to spray cold air to dissipate heat inside the device body 1. As the control valve 64 continues to rotate under the continuous movement of the tooth plate 63, more gas will be sprayed from the inside of the cooling box 61. At this time, when the temperature inside the device body 1 is no longer high, the expansion airbag 69 will return to the center and drive the tooth plate 63 to move in the opposite direction. At this time, the rotating gear 65 will drive the control valve 64 to return to the center, thereby gradually closing the cooling box 61, further improving the use effect of the device.

[0050] The above embodiments are only for describing the preferred implementation of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention.

[0051] The technology, shape and structure parts not described in detail in the present invention are all well-known technologies.

Claims

1. A portable relay protection test device, comprising a device body (1), a control component (2) is arranged inside the device body (1), and support legs (7) are fixedly installed on four sides of the lower end of the device body (1), characterized in that: A protective structure (3) is arranged inside the device body (1), and the protective structure (3) comprises: A dustproof net (31), the dustproof net (31) is fixedly mounted on one side of the device body (1), a filter screen (32) is fixedly mounted on the other side of the device body (1), the upper and lower ends of the inner wall of the device body (1) are rotatably connected to a rotating rod (33) through a shaft sleeve, and a cam (34) is fixedly mounted on the surface of the rotating rod (33); A U-shaped frame (35), the U-shaped frame (35) is fixedly mounted on the side wall of the dustproof net (31), a moving rod (36) passes through the side wall of the U-shaped frame (35), a knocking plate (37) is fixedly mounted on one end of the moving rod (36), a striking plate (38) is fixedly mounted on the other end of the moving rod (36), a return spring (39) is arranged on the surface of the moving rod (36), and a cleaning structure (4) for cleaning the outside of the dustproof net (31) is arranged on the upper end of the device body (1); A bracket (310), wherein a plurality of groups of the brackets (310) are slidably connected to the outer wall of the dustproof net (31), a notch (311) is provided on the inner wall of the bracket (310), one end of an extrusion spring (312) is fixedly mounted on the inner wall of the notch (311), a slide plate (313) is fixedly mounted on the other end of the extrusion spring (312), and a scraper plate (314) is fixedly mounted on the side wall of the slide plate (313); A slide groove (315), wherein the slide groove (315) is opened on the outer side of the dustproof net (31), and a plurality of groups of impact blocks (316) are fixedly installed on the inner wall of the slide groove (315), and a contact block (317) is fixedly installed on the side wall of the scraper (314), and the end of the moving rod (36) away from the impact plate (38) passes through the side wall of the dustproof net (31) and is fixedly installed with a connecting block (318), and the lower end of the connecting block (318) is hinged to one end of a connecting rod (319), and the other end of the connecting rod (319) is hinged to the upper end of the bracket (310).

2. A portable relay protection test equipment according to claim 1, characterized in that: The cleaning structure (4) comprises a fixing frame (40) fixedly mounted on the upper end of the equipment body (1); a wind bin (41) is fixedly mounted on the upper end of the fixing frame (40); the upper end of the rotating rod (33) penetrates through the side wall of the fixing frame (40) and is fixedly mounted with a wind wheel (42); a wind cover (43) is fixedly mounted on the surface of the wind bin (41); a ventilation pipe (44) is fixedly mounted on the side wall of the wind bin (41); a corrugated pipe (45) is fixedly mounted on the lower end of the ventilation pipe (44); one end of an L-shaped air duct (46) is fixedly mounted on the lower end of the corrugated pipe (45); an air spray frame (47) is fixedly mounted on the other end of the L-shaped air duct (46); and a movable structure (5) is arranged inside the fixing frame (40).

3. A portable relay protection test equipment according to claim 2, characterized in that: The movable structure (5) comprises a reciprocating screw (51) fixedly mounted on the surface of a rotating rod (33); a sleeve (52) is threadedly connected to the surface of the reciprocating screw (51); one end of a connecting plate (53) is fixedly mounted on the side wall of the sleeve (52); the other end of the connecting plate (53) is fixedly connected to the upper end of an L-shaped air duct (46); and a heat dissipation structure (6) is provided inside the device body (1).

4. A portable relay protection test equipment according to claim 3, characterized in that: The heat dissipation structure (6) comprises a cooling box (61) fixedly mounted on both sides of the inner wall of the equipment body (1), a hollow cylinder (62) fixedly mounted on both sides of the inner wall of the equipment body (1), an expansion airbag (69) fixedly mounted on the inner wall of the hollow cylinder (62), one end of the expansion airbag (69) contacts the side wall of the control component (2), and a tooth plate (63) is fixedly mounted on the other end of the expansion airbag (69), the lower end of the cooling box (61) is rotatably connected to a control valve (64), and a rotating gear (65) is fixedly mounted on the lower end surface of the control valve (64).

5. A portable relay protection test equipment according to claim 4, characterized in that: One end of the return spring (39) is fixedly connected to the side wall of the U-shaped frame (35), and the other end of the return spring (39) is fixedly connected to the side wall of the striking plate (38).

6. The portable relay protection test equipment according to claim 1, characterized in that: A motor (8) is fixedly mounted on the inner wall of the equipment body (1), a first bevel gear (9) is fixedly mounted on the surface of the output shaft of the motor (8), and a second bevel gear (10) is fixedly mounted on the surface of the rotating rod (33).

7. The portable relay protection test equipment according to claim 1, characterized in that: The cam (34) and the U-shaped frame (35) are provided in three groups, and the three groups of the cam (34) and the U-shaped frame (35) are all arranged inside the equipment body (1).

8. The portable relay protection test equipment according to claim 5, characterized in that: The side wall of the fixing frame (40) is provided with a sliding opening (11) adapted to the moving track of the connecting plate (53); the L-shaped air duct (46) and the corrugated pipe (45) are in a connected state; and a handle (12) is fixedly mounted on the upper end of the equipment body (1).

9. The portable relay protection test equipment according to claim 1, characterized in that: The extrusion springs (312) are fixedly installed in multiple groups, and the multiple groups of the extrusion springs (312) are all fixedly installed on the inner wall of the slot (311). The number of the brackets (310) is twice the number of the connecting blocks (318), and the two groups of the brackets (310) are connected by a fixing rod (13).

10. The portable relay protection test equipment according to claim 1, characterized in that: The impact block (316) and the contact block (317) are both configured as arc-shaped structures and are the same in number, and the scraper (314) is in contact with the outer side wall of the dustproof net (31).

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