CN216160783U - Relay protection connecting piece type hard pressing plate position sensor - Google Patents
Relay protection connecting piece type hard pressing plate position sensor Download PDFInfo
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- CN216160783U CN216160783U CN202122241695.0U CN202122241695U CN216160783U CN 216160783 U CN216160783 U CN 216160783U CN 202122241695 U CN202122241695 U CN 202122241695U CN 216160783 U CN216160783 U CN 216160783U
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Abstract
The utility model discloses a relay protection connecting piece type hard pressure plate position sensor which comprises an induction device, wherein the hard pressure plate comprises a connecting piece type knob for controlling the switching state of the hard pressure plate, a fixing piece for fixing the hard pressure plate on external equipment and a binding post for connecting the hard pressure plate with a relay protection secondary circuit, the induction device is fixedly arranged on the side surface of the fixing piece, the connecting piece type knob is rotatably connected above the fixing piece, the binding post is arranged below the fixing piece, the induction device comprises a microswitch, the contact of the microswitch is over against the connecting piece type knob, and a power supply, a main control module, a wireless sending module and a radio frequency antenna are sealed in the shell of the induction device; the utility model has the advantages that: the switching state of the hard pressing plate does not need manual regular inspection, the switching and retreating condition monitoring mode of the hard pressing plate is safe and effective, and the influence on the safe and stable operation of a power grid is avoided.
Description
Technical Field
The utility model relates to the field of transformer substation state monitoring, in particular to a relay protection connecting piece type hard pressing plate position sensor.
Background
The hard pressing plate is also called a protection connecting sheet, is a bridge and a link of the protection device which are connected with external wiring, and is related to whether the relay protection function is put into use or not and whether the action outlet can normally play a role or not.
The correctness of the switching on and off of the hard pressing plate directly influences whether the protection can act correctly, and as the secondary circuit of the relay protection adopts direct current power supply, no current exists in a tripping and closing circuit during normal operation, the safe and effective technical means is lacked aiming at the monitoring of the switching on and off condition of the hard pressing plate at present, and manual periodical inspection is mainly relied on. Along with the continuous development of the power grid scale, the inspection checking workload of the pressing plate is larger and larger, inspection personnel also relax subjectively, device misoperation or failure accident caused by the mistaken throwing or missed throwing of the pressing plate happens occasionally, and the safety and stability of the power grid are affected badly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the safe and effective mode for monitoring the switching condition of the hard pressing plate in the prior art is lacked, so that the safe and stable operation of a power grid is seriously influenced.
The utility model solves the technical problems through the following technical means: a relay protection link type hard pressing plate position sensor comprises an induction device, wherein the hard pressing plate comprises a link type knob for controlling the switching state of the hard pressing plate, a fixing piece for fixing the hard pressing plate on external equipment and a binding post for connecting the hard pressing plate with a relay protection secondary circuit, the induction device is fixedly arranged on the side face of the fixing piece, the binding post is rotatably connected with the link type knob above the fixing piece, the binding post is arranged below the fixing piece, the induction device comprises a microswitch, the contact of the microswitch is right opposite to the link type knob, a power supply, a main control module, a wireless sending module and a radio frequency antenna are packaged in the shell of the induction device, the power supply supplies power for the microswitch, the main control module and the wireless sending module, the IO acquisition port of the main control module is connected with the switching value signal output end of the microswitch, and the data transmission port of the main control module is connected with the data receiving port of the wireless sending module, and the data sending port of the wireless sending module is connected with the radio frequency antenna.
The hard pressing plate switching state is controlled through the connecting piece type knob, the connecting piece type knob rotates in the hard pressing plate switching process, the contact of the microswitch is over against the connecting piece type knob, the connecting piece type knob is in contact with or not in contact with the microswitch along with the rotation of the connecting piece type knob, so that the microswitch is triggered or not triggered, the state of the microswitch corresponds to the state of the hard pressing plate, the state of the microswitch is received through the main control module, a switching value signal is sent out through the wireless sending module and the radio frequency antenna, namely the state of the hard pressing plate is sent out, therefore, the hard pressing plate switching state does not need manual regular inspection, the monitoring mode for the switching-on and-off condition of the hard pressing plate is safe and effective, and the influence on the safe and stable operation of a power grid is avoided.
Furthermore, the fixing piece comprises two hollow cylinders which are arranged in bilateral symmetry, the two hollow cylinders are fixedly connected through a connecting plate, and the bottoms of the two hollow cylinders are respectively connected with a bolt which is provided with an external thread and is hollow inside.
Further, one of the two hollow cylinders is provided with a curved baffle, which is mounted above the hollow cylinder.
Furthermore, the side surfaces of the two hollow cylinders and the side surface of the connecting plate are fixedly connected with the side surface of the shell of the induction device, and the bottom surface of the shell of the induction device is flush with the bottom surface of the hollow cylinders.
Furthermore, the connecting piece type knob comprises contact pieces, the left side and the right side of each contact piece are provided with hooks, the middle of each hook is provided with a rectangular plate, the directions of the hooks on the left side and the right side of each contact piece are opposite, the hooks on the two sides of each contact piece are respectively positioned above the two hollow cylinders, hook eyes of the hooks face the hollow parts of the hollow cylinders, the middle of each rectangular plate is clamped with a clamping block, the clamping block is insulated, and the side face of each clamping block faces the contact of the microswitch.
Furthermore, a cavity is formed between the contact piece, the connecting plate, the sensing device and the two hollow cylinders, a first groove is formed in one side, opposite to the fixing piece, of the shell of the sensing device, and the first groove is located on the side where the cavity is located, and the contact of the microswitch clamped in the first groove is opposite to the side face of the fixture block.
Furthermore, the number of the binding posts is two, the binding posts are cylindrical rod-shaped structures with outer threads at the upper end and the lower end and smooth middle, the hooks are respectively provided with a first gasket up and down, nuts are arranged on the first gasket above the hooks, a first nut is arranged between the first gasket below the hooks and the upper part of the hollow cylinder, the bolt below the fixing piece is in threaded connection with a second nut, a third nut is arranged under the bolt below the fixing piece, two second gaskets are sequentially arranged under the third nut, a fourth nut is arranged under the second gasket, the nuts are in threaded connection with the upper end of the binding posts, and the binding posts sequentially penetrate through the first gasket, the hooks on the contact piece, the other first gasket, the first nut, the hollow part of the hollow cylinder of the fixing piece, the hollow part of the bolt below the fixing piece, the third nut, the hollow part of the bolt below the fixing piece, The first nut, the third nut and the fourth nut are all in threaded connection with the wiring terminal.
Furthermore, the inner arc surface of the arc-shaped baffle plate on the fixing piece is attached to the outer side of the first gasket.
Furthermore, a second groove is formed in a hollow portion of the bolt below the fixing piece, a convex block is arranged at a position, right opposite to the second groove, of the wiring terminal, and the convex block is clamped in the second groove.
Further, the sensor is fixed on external equipment through a bolt and a second nut below the fixing piece, and a gap between the two second gaskets is connected with a lead of the relay protection secondary circuit.
The utility model has the advantages that: the hard pressing plate switching state is controlled through the connecting piece type knob, the connecting piece type knob rotates in the hard pressing plate switching process, the contact of the microswitch is over against the connecting piece type knob, the connecting piece type knob is in contact with or not in contact with the microswitch along with the rotation of the connecting piece type knob, so that the microswitch is triggered or not triggered, the state of the microswitch corresponds to the state of the hard pressing plate, the state of the microswitch is received through the main control module, a switching value signal is sent out through the wireless sending module and the radio frequency antenna, namely the state of the hard pressing plate is sent out, therefore, the hard pressing plate switching state does not need manual regular inspection, the monitoring mode for the switching-on and-off condition of the hard pressing plate is safe and effective, and the influence on the safe and stable operation of a power grid is avoided.
Drawings
Fig. 1 is a schematic block diagram of a circuit of an inductor in a relay protection chip-connected hard platen position sensor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a relay protection connecting piece type hard pressing plate position sensor in a hard pressing plate input state according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a relay protection connecting piece type hard pressing plate position sensor in a hard pressing plate exit state according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, a relay protection connecting piece type hard pressure plate position sensor comprises an induction device 1, wherein the hard pressure plate comprises a connecting piece type knob 3 for controlling the switching state of the hard pressure plate, a fixing piece 2 for fixing the hard pressure plate on external equipment, and a binding post 4 for connecting the hard pressure plate with a relay protection secondary circuit, the induction device 1 is fixedly arranged on the side surface of the fixing piece 2, the connecting piece type knob 3 is rotatably connected above the fixing piece 2, the binding post 4 is arranged below the fixing piece 2, the induction device 1 comprises a micro switch 101, a first groove is arranged on one side of a shell of the induction device 1, which is opposite to the fixing piece 2, the micro switch 101 is clamped in the first groove, the contact of the micro switch 101 is opposite to the connecting piece type knob 3, a power source 102, a main control module 103, a wireless transmission module 104 and a radio frequency antenna 105 are sealed in the shell of the induction device 1, the power supply 102 supplies power to the micro switch 101, the main control module 103 and the wireless sending module 104, an IO acquisition port of the main control module 103 is connected with a switching value signal output end of the micro switch 101, a data transmission port of the main control module 103 is connected with a data receiving port of the wireless sending module 104, and a data sending port of the wireless sending module 104 is connected with the radio frequency antenna 105.
The fixing part 2 comprises two hollow cylinders 201 which are arranged in bilateral symmetry, the two hollow cylinders 201 are fixedly connected through a connecting plate 202, the bottoms of the two hollow cylinders 201 are respectively connected with a bolt 203 which is provided with an external thread and is hollow inside, the inner diameter of each hollow cylinder 201 is the same as that of the bolt 203, one of the two hollow cylinders 201 is provided with an arc-shaped baffle 204, and the arc-shaped baffle 204 is arranged above the hollow cylinder 201. The side surfaces of the two hollow cylinders 201 and the side surface of the connecting plate 202 are fixedly connected with the side surface of the shell of the induction device 1, and the bottom surface of the shell of the induction device 1 is flush with the bottom surface of the hollow cylinder 201.
The piece connecting type knob 3 comprises contact pieces 301, the left side and the right side of each contact piece are provided with hooks, the middle of each contact piece is provided with a rectangular plate, the directions of the hooks on the left side and the right side of each contact piece 301 are opposite, the hooks on the two sides of each contact piece 301 are respectively positioned above the two hollow cylinders 201, and hook eyes of the hooks are opposite to the inner hollow of the hollow cylinders 201. A clamping block 302 is arranged in the middle of the rectangular plate, a clamping groove is formed in the bottom of the clamping block 302, the clamping block 302 is clamped in the middle of the rectangular plate through the clamping groove in the bottom of the clamping block 302, and the side face of the clamping block 302 faces the contact of the microswitch 101. A cavity is formed among the contact piece 301, the connecting plate 202, the sensing device 1 and the two hollow cylinders 201, and a first groove on the shell of the sensing device 1 is positioned at the side of the cavity and a contact of the microswitch 101 clamped in the first groove is opposite to the side surface of the fixture block 302. The fixture block 302 is insulated, and the fixture block 302 is used for manually rotating the contact piece 301 to enable the contact piece 301 to be far away from the terminal 4 or to be in contact with the terminal 4, and meanwhile, the fixture block 302 can be far away from the microswitch 101 or touch the microswitch 101 in the rotating process.
The wiring terminal 4 has two, and the wiring terminal 4 has the smooth cylinder rod-shaped structure in middle of the external screw thread for upper and lower end, the crotch respectively establishes a first gasket 6 from top to bottom, is equipped with the nut 5 on the first gasket 6 of crotch top, sets up first nut 7 between the first gasket 6 of crotch below and the top of hollow cylinder 201, bolt 203 threaded connection a second nut 8 of mounting 2 below, set up a third nut 9 under the bolt 203 of mounting 2 below, set gradually two second gaskets 10 below the third nut 9, set gradually fourth nut 11 below the second gasket 10, nut 5 with the upper end threaded connection of wiring terminal 4, wiring terminal 4 passes well kenozooecium, another first gasket 6, first nut 7 on a first gasket 6, the contact piece 301 in proper order, hollow portion of hollow cylinder 201 of mounting 2, The hollow portion of the bolt 203 below the fixing member 2, the third nut 9, the two second washers 10, and the fourth nut 11, and the first nut 7, the third nut 9, and the fourth nut 11 are all screwed to the terminal 4.
The inner arc surface of the arc-shaped baffle 204 on the fixing piece 2 is attached to the outer side of the first gasket 6, and the arc-shaped baffle 204 is used for preventing deviation when the contact piece 301 rotates around the binding post 4.
A second groove is formed in a hollow part of the bolt 203 below the fixing part 2, a convex block is arranged at a position, right opposite to the second groove, of the terminal 4, the convex block is clamped in the second groove and used for further clamping the sensor, and the hollow parts of the hollow cylinder 201 and the bolt 203 are in threaded connection with the terminal 4 through threads. The bolt 203 and the second nut 8 below the fixing part 2 are used for fixing the sensor on external equipment, and the gap between the two second gaskets 10 is used for connecting a lead of a relay protection secondary circuit.
The working process of the utility model is as follows: referring to fig. 2, when the hard pressing plate is put in, hooks of two contact pieces 301 of the connecting piece type knob 3 are clamped on the terminal 4, the terminal 4 and the contact piece 301 are in a connection state, a relay protection secondary circuit is conducted, at this time, the fixture block 302 just props against a contact of the micro switch 101, the micro switch acts in a closed state, an IO acquisition port of the main control module 103 is connected with a switching value signal output end of the micro switch 101 to acquire a switching value signal of the micro switch 101, a data transmission port of the main control module 103 is connected with a data receiving port of the wireless transmission module 104, a data transmission port of the wireless transmission module 104 is connected with the radio frequency antenna 105, the main control module 103 transmits the received switching value signal of the micro switch 101 through the wireless transmission module 104 and the radio frequency antenna 105, namely the received switching value signal of the micro switch 101 is transmitted, namely the closed signal of the micro switch 101 is transmitted, and the switching value signal of the hard pressing plate is in a switch off state (the micro contact piece 301 and the terminal) 4 contact or not) corresponds to the signal input by the hard pressing plate, which is equivalent to sending out the signal input by the hard pressing plate.
Referring to fig. 3, when the hard pressing plate is withdrawn, the fixture block 302 on the connecting piece type knob 3 drives the contact piece 301 to rotate around the terminal 4 on one side provided with the arc-shaped baffle 204 in a direction away from the sensing device 1, the hook on the other side of the contact piece 301 is away from the terminal 4, only one of the two hooks of the contact piece 301 is clamped on the corresponding terminal 4, the terminal 4 and the contact piece 301 are in a non-connection state, the relay protection secondary circuit is disconnected, at this time, the fixture block 302 is away from the contact of the micro switch 101, the micro switch does not act, i.e. is in a disconnection state, the IO acquisition port of the main control module 103 is connected with the switching value signal output end of the micro switch 101 to acquire the switching value signal of the micro switch 101, the data transmission port of the main control module 103 is connected with the data receiving port of the wireless transmission module 104, the data transmission port of the wireless transmission module 104 is connected with the radio frequency antenna 105, the main control module 103 sends out the received switching value signal of the micro switch 101, that is, sends out the signal of disconnecting the micro switch 101, through the wireless sending module 104 and the radio frequency antenna 105, and since the switching value signal of the micro switch 101 corresponds to the on/off state of the hard pressing plate (that is, whether the contact piece 301 is in contact with the terminal 4 or not), it is equivalent to sending out the signal of withdrawing the hard pressing plate.
Through the technical scheme, the switching state of the hard pressing plate is controlled through the connecting piece type knob 3, the connecting piece type knob 3 rotates in the switching process of the hard pressing plate, the contact of the microswitch 101 is over against the connecting piece type knob 3, the connecting piece type knob 3 is in contact with or not in contact with the microswitch 101 along with the rotation of the connecting piece type knob 3, so that the microswitch 101 is triggered or not triggered, the state of the microswitch 101 corresponds to the state of the hard pressing plate, the master control module 103 receives the state of the microswitch 101 and sends out a switching value signal through the wireless sending module 104 and the radio frequency antenna 105, namely the state of the hard pressing plate is sent out, therefore, the switching state of the hard pressing plate does not need manual regular inspection, the monitoring mode for the switching-on and off conditions of the hard pressing plate is safe and effective, and the influence on the safe and stable operation of a power grid is avoided.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A relay protection link type hard pressing plate position sensor is characterized by comprising an induction device, wherein the hard pressing plate comprises a link type knob for controlling the switching state of the hard pressing plate, a fixing piece for fixing the hard pressing plate on external equipment and a binding post for connecting the hard pressing plate with a relay protection secondary circuit, the induction device is fixedly arranged on the side face of the fixing piece, the link type knob is connected above the fixing piece in a rotating way, the binding post is arranged below the fixing piece, the induction device comprises a microswitch, the contact of the microswitch is just opposite to the link type knob, a power supply, a main control module, a wireless sending module and a radio frequency antenna are packaged in the shell of the induction device, the power supply supplies power to the microswitch, the main control module and the wireless sending module, and an IO acquisition port of the main control module is connected with the switching value signal output end of the microswitch, the data transmission port of the main control module is connected with the data receiving port of the wireless sending module, and the data sending port of the wireless sending module is connected with the radio frequency antenna.
2. The relay protection connecting piece type hard pressure plate position sensor according to claim 1, wherein the fixing member comprises two hollow cylinders symmetrically arranged left and right, the two hollow cylinders are fixedly connected through a connecting plate, and a bolt having an external thread and a hollow inside is connected to the bottom of each of the two hollow cylinders.
3. The relay protection plate-connecting type hard pressure plate position sensor according to claim 2, wherein one of the two hollow cylinders is provided with a curved baffle, and the curved baffle is installed above the hollow cylinder.
4. The relay protection connecting piece type hard pressure plate position sensor according to claim 2, wherein the side surfaces of the two hollow cylinders and the side surface of the connecting plate are fixedly connected with the side surface of the housing of the sensing device, and the bottom surface of the housing of the sensing device is flush with the bottom surface of the hollow cylinder.
5. The relay protection connecting piece type hard pressure plate position sensor according to claim 3, wherein the connecting piece type knob comprises a contact piece with a rectangular plate in the middle of the contact piece and hooks at the left side and the right side of the contact piece, the directions of the hooks at the left side and the right side of the contact piece are opposite, the hooks at the two sides of the contact piece are respectively positioned above the two hollow cylinders, hook eyes of the hooks face the hollow parts of the hollow cylinders, a clamping block is clamped in the middle of the rectangular plate, the clamping block is insulated, and a side face of the clamping block faces the contact of the micro switch.
6. The relay protection connecting piece type hard pressure plate position sensor according to claim 5, wherein a cavity is formed between the contact piece, the connecting plate, the sensing device and the two hollow cylinders, a first groove is formed in one side, facing the fixing piece, of a shell of the sensing device, the first groove is located on the side of the cavity, and a contact of a microswitch clamped in the first groove faces the side face of the fixture block.
7. The relay protection connecting piece type hard pressing plate position sensor according to claim 5, wherein the number of the connecting pieces is two, the connecting pieces are cylindrical rod-shaped structures with upper and lower ends provided with external threads and smooth middle portions, the upper end and the lower end of each hook are respectively provided with a first gasket, a nut is arranged on the first gasket above each hook, a first nut is arranged between the first gasket below each hook and the upper portion of the hollow cylinder, the bolt below each fixing piece is in threaded connection with a second nut, a third nut is arranged right below the bolt below each fixing piece, two second gaskets are sequentially arranged below the third nut, a fourth nut is arranged below each second gasket, the nut is in threaded connection with the upper end of each connecting piece, and each connecting piece sequentially penetrates through the hollow portions of the first gasket, the hook on the contact piece, the other first gasket, the first nut and the hollow cylinder of the fixing piece, The bolt comprises a hollow part of the bolt below the fixing part, a third nut, two second gaskets and a fourth nut, wherein the first nut, the third nut and the fourth nut are all in threaded connection with the wiring terminal.
8. The relay protection plate-connecting type hard pressure plate position sensor according to claim 7, wherein an inner arc surface of the arc-shaped baffle on the fixing member is attached to an outer side of the first gasket.
9. The relay protection connecting piece type hard pressure plate position sensor according to claim 8, wherein a second groove is arranged in a hollow part of the bolt below the fixing member, a convex block is arranged at a position where the terminal post faces the second groove, and the convex block is clamped in the second groove.
10. The relay protection connecting piece type hard pressing plate position sensor is characterized in that the sensor is fixed on external equipment through a bolt and a second nut below a fixing piece, and a gap between two second gaskets is connected with a lead of a relay protection secondary circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122241695.0U CN216160783U (en) | 2021-09-15 | 2021-09-15 | Relay protection connecting piece type hard pressing plate position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122241695.0U CN216160783U (en) | 2021-09-15 | 2021-09-15 | Relay protection connecting piece type hard pressing plate position sensor |
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| Publication Number | Publication Date |
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| CN216160783U true CN216160783U (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122241695.0U Active CN216160783U (en) | 2021-09-15 | 2021-09-15 | Relay protection connecting piece type hard pressing plate position sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116388113A (en) * | 2023-06-06 | 2023-07-04 | 国网山西省电力公司超高压变电分公司 | Anti-misoperation monitoring system and method for relay protection hard pressing plate of transformer substation |
-
2021
- 2021-09-15 CN CN202122241695.0U patent/CN216160783U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116388113A (en) * | 2023-06-06 | 2023-07-04 | 国网山西省电力公司超高压变电分公司 | Anti-misoperation monitoring system and method for relay protection hard pressing plate of transformer substation |
| CN116388113B (en) * | 2023-06-06 | 2023-10-20 | 国网山西省电力公司超高压变电分公司 | Anti-misoperation monitoring system and method for relay protection hard pressing plate of transformer substation |
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