CN216532114U - Circuit parameter test protection device - Google Patents
Circuit parameter test protection device Download PDFInfo
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- CN216532114U CN216532114U CN202122959113.2U CN202122959113U CN216532114U CN 216532114 U CN216532114 U CN 216532114U CN 202122959113 U CN202122959113 U CN 202122959113U CN 216532114 U CN216532114 U CN 216532114U
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Abstract
The utility model provides a line parameter testing protection device which comprises a protection box, a plurality of locking assemblies, a current detector and a controller, wherein the protection box comprises a plurality of locking assemblies; the protection box is embedded with a plurality of sockets, each socket is respectively used for connecting each test line on the parameter tester, each socket is connected with a plug in an inserted manner, and each plug is respectively used for correspondingly connecting each phase of power transmission line; the locking assemblies are arranged on the protective box and are respectively used for locking the plugging state of each plug and the corresponding socket; the current detector is used for being connected to a grounding circuit at the downstream of the grounding disconnecting link and detecting the current on the grounding circuit; the controller is arranged in the protective box, is electrically connected with the locking assembly and is respectively in wireless communication connection with the parameter tester and the current detector. The line parameter testing protection device provided by the utility model can avoid the situation of electric shock caused by misoperation under the condition that the grounding disconnecting link is not closed.
Description
Technical Field
The utility model belongs to the technical field of power transmission line testing, and particularly relates to a line parameter testing protection device.
Background
When the power transmission line parameter test is carried out, the grounding disconnecting link needs to be in a disconnected state, in order to ensure safety, after the test is completed, the grounding disconnecting link needs to be closed when the power transmission line parameter test equipment is dismantled, and because a far distance can be usually formed between a test end and the grounding disconnecting link, testers cannot timely learn the on-off condition of the grounding disconnecting link, the disconnecting operation is carried out on the line parameter test equipment under the condition that the grounding disconnecting link is not closed, the induction electricity remained in the line is not timely introduced into the ground, so that the accident that a person is easily injured by the induction electric shock exists, and great potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a line parameter test protection device, aiming at avoiding the situation of electric shock caused by misoperation under the condition that a grounding disconnecting link is not closed and improving the safety of the parameter test work of a power transmission line.
In order to achieve the purpose, the utility model adopts the technical scheme that: the circuit parameter testing protection device comprises a protection box, a plurality of locking assemblies, a current detector and a controller; the protection box is embedded with a plurality of sockets, each socket is respectively used for connecting each test line on the parameter tester, each socket is connected with a plug in an inserted manner, and each plug is respectively used for correspondingly connecting each phase of power transmission line; the locking assemblies are arranged on the protective box and are respectively used for locking the plugging state of each plug and the corresponding socket; the current detector is used for being connected to a grounding circuit at the downstream of the grounding disconnecting link and detecting a current signal on the grounding circuit; the controller is arranged in the protective box, is electrically connected with the locking assembly, is respectively in wireless communication connection with the parameter tester and the current detector, can be used for sending a current output signal to the parameter tester, can also be used for receiving a detection signal fed back by the current detector and controlling the locking assembly to keep or release a locking state according to the detection signal.
In one possible implementation, the socket is a male plug and the plug is a female plug.
In some embodiments, the plug end wall of the plug is provided with a recessed cavity, and the socket of the plug is positioned on the cavity bottom wall of the recessed cavity.
Illustratively, the plug end of the socket is provided with a receiving cavity for receiving the plug end of the plug.
In a possible implementation manner, a slot is formed in a side wall of the plugging end of the socket, a plug board is arranged on a side wall of the plugging end of the plug, and the plug board is plugged with the slot when the plug and the socket are in a plugging state.
In some embodiments, the socket board is provided with a first jack, the wall of the slot is provided with a second jack corresponding to the first jack, and when the plug and the socket are in a plugging state, the locking end of the locking component passes through the second jack and the first jack together.
Illustratively, a travel switch is arranged in the slot, the travel switch is electrically connected with the controller, and when the plug and the socket are in a plugging state, the plug board is pressed against the travel switch.
For example, the latching assembly includes a telescopic drive and a latching lever; the telescopic driving piece is arranged on the protective box and is axially aligned with the second jack, and the telescopic driving piece is electrically connected with the controller; the locking rod is arranged at the output end of the telescopic driving piece and is used for penetrating into the first jack and the second jack under the driving of the telescopic driving piece.
Specifically, the telescopic driving member is a linear motor or an electromagnetic telescopic rod.
In some embodiments, a broadcast device and an alarm lamp are arranged in the protective box, and the broadcast device and the alarm lamp are respectively electrically connected with the controller.
The line parameter testing protection device provided by the utility model has the beneficial effects that: compared with the prior art, the line parameter test protection device of the utility model has the advantages that when the test is finished and the line at the test end is dismantled, the controller sends a current output signal to the parameter tester in a wireless communication mode, the parameter tester sends current after receiving the signal, if the grounding switch is in a closed state, the current detector can receive the current and convert the information into an electric signal to feed back the electric signal to the controller, and if the grounding switch is not closed, the current is interrupted at the grounding switch and cannot reach the current detector, the controller can obtain the closing condition of the grounding switch according to the received closing electric signal information, thereby controlling the locking component to release the locking state, and the locking component can always keep the locking state under the condition that the closing electric signal information is not received, so that the locking component can only release the locking state under the condition that the grounding switch is determined, the plug can be pulled out from the socket, so that the condition of electric shock caused by misoperation under the condition that the grounding disconnecting link is not closed is avoided, and the safety of the parameter test work of the power transmission line is improved.
Drawings
Fig. 1 is a schematic perspective view of a line parameter testing protection device in a plug-in state of a plug and a socket according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a circuit parameter testing protection device in a state where a plug and a socket are disconnected according to an embodiment of the present invention;
fig. 3 is an electrical connection schematic diagram of a circuit parameter testing protection device according to an embodiment of the present invention.
In the figure: 10. a protective box; 11. a socket; 111. a slot; 112. a receiving chamber; 113. a second jack; 12. A plug; 121. inserting plates; 123. a first jack; 122. a recessed cavity; 13. a broadcaster; 14. an alarm light; 20. a locking assembly; 21. a telescopic driving member; 22. a locking lever; 30. a current detector; 40. a controller; 50. a travel switch; 60. a parameter tester; 70. a grounding disconnecting link; 80. and (5) power transmission line.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 to fig. 3, a circuit parameter testing protection device according to the present invention will now be described. The line parameter testing protection device comprises a protection box 10, a plurality of locking assemblies 20, a current detector 30 and a controller 40; a plurality of sockets 11 are embedded in the protective box 10, each socket 11 is used for connecting each test line on the parameter tester 60, each socket 11 is connected with a plug 12 in an inserted manner, and each plug 12 is used for correspondingly connecting each phase of power transmission line 80; a plurality of locking assemblies 20 are arranged on the protective box 10 and are respectively used for locking the plugging state of each plug 12 and the corresponding socket 11; the current detector 30 is used for connecting to the ground line downstream of the grounding disconnecting link 70 and detecting a current signal on the ground line; the controller 40 is disposed in the protection box 10, electrically connected to the locking assembly 20, and wirelessly connected to the parameter tester 60 and the current detector 30, respectively, and the controller 40 can be configured to send a current output signal to the parameter tester 60, and can be further configured to receive a detection signal fed back by the current detector 30 and control the locking assembly 20 to maintain or release the locking state according to the detection signal.
It should be noted that, the main detecting component of the current detecting instrument 30 is a rogowski coil or a current transformer, which is used to obtain information of a current to be detected, and can convert the detected information into an electrical signal meeting a certain standard or an information output in other required forms according to a certain rule, and the output information is also the detecting signal received by the controller 40 in this embodiment; in addition, the wireless communication connection between the controller 40 and the current detector 30 and the parameter tester 60 may be specifically a 4G/5G wireless network signal connection, or a bluetooth signal connection within a distance range, and the wireless communication connection technology itself is the prior art, and the detailed principle thereof will not be described in detail here.
The using mode of the line parameter testing protection device provided by the embodiment is as follows: during parameter testing, each test line of the parameter tester 60 is correspondingly connected with each phase of power transmission line 80 by using the plugging and conducting action of each plug 12 and the socket 11, certainly, the connection is performed under the condition that the grounding disconnecting link 70 is closed, the grounding disconnecting link 70 is disconnected after the wiring is completed to perform parameter testing, the grounding disconnecting link 70 needs to be closed again to perform line dismantling after the testing is completed, at this time, a current output signal needs to be sent to the parameter tester 60 through the controller 40, the parameter tester 60 sends current after receiving the signal, the current enters the grounding disconnecting link 70 through the socket 11, the plug 12 and the power transmission line 80 along the test line, at this time, if the grounding disconnecting link 70 is not closed, the current is interrupted at this point, if the grounding disconnecting link 70 is closed, the current enters the current detector 30 through the grounding disconnecting link 70, the current detector 30 converts the received current into a radio signal to be fed back to the controller 40, the controller 40 receives the electrical signal to control the latch assembly 20 to unlock, and it should be understood that the latch assembly 20 can be unlocked only after the controller 40 receives the electrical signal fed back from the current detector 30, and the plug 12 can be pulled out from the socket 11.
Compared with the prior art, when the test is completed and the line at the test end is removed, the controller 40 sends a current output signal to the parameter tester 60 in a wireless communication manner, the parameter tester 60 sends a current after receiving the signal, if the grounding switch 70 is in the closed state, the current detector 30 can receive the current and convert the information into an electrical signal to be fed back to the controller 40, and if the grounding switch 70 is not closed, the current is interrupted at the grounding switch 70 and cannot reach the current detector 30, the controller 40 can know the closing condition of the grounding switch 70 according to the received closing electrical signal information, so as to control the locking component 20 to release the locking state, and maintain the locking state all the time under the condition that the closing electrical signal information is not received, so that only under the condition that the grounding switch 70 is surely closed, the locking component 20 can be unlocked, and the plug 12 can be pulled out from the socket 11, so that the electric shock caused by misoperation under the condition that the grounding disconnecting link 70 is not closed is avoided, and the safety of the parameter testing work of the power transmission line 80 is improved.
In some embodiments, referring to fig. 2, the receptacle 11 is a male plug and the plug 12 is a female plug. It should be understood that, since the plug 12 is connected to the power transmission line 80, when the grounding switch 70 is not closed, the plug 12 is a charged body, and if the locking assembly 20 fails to release the locked state when the grounding switch 70 is not closed, when the plug 12 is checked by an operator, the operator cannot touch the charged part inside the plug 12 because the plug 12 is a female plug, so that electric shock can be avoided, and the operation safety can be improved.
Referring to fig. 2, as an embodiment of the plug 12, a recessed cavity 122 is formed on the plugging end wall of the plug 12, and the socket of the plug 12 is located on the cavity bottom wall of the recessed cavity 122. The socket can be recessed in the end wall of the plug 12 by arranging the recessed cavity 122, so that the end part of the operator contacting the plug 12 can not be touched by mistake on the socket, electric shock is avoided, and the safety performance can be further improved.
As an embodiment of the above-mentioned socket 11, please refer to fig. 2, the plugging end of the socket 11 is provided with a receiving cavity 112, and the receiving cavity 112 is used for receiving the plugging end of the plug 12. After the plug 12 and the socket 11 are plugged, the end of the plug 12 can extend into the receiving cavity 112, so that the live parts of the plug 12 and the socket 11 can be prevented from being exposed, the electric shock is avoided, and the safety is high.
In some possible implementations, referring to fig. 1 and fig. 2, a slot 111 is formed on a sidewall of a plugging end of the socket 11, a plug board 121 is disposed on a sidewall of a plugging end of the plug 12, and when the plug 12 and the socket 11 are in a plugging state, the plug board 121 is plugged into the slot 111. On the one hand, the plugging angle between the plug 12 and the socket 11 can be limited, the insertion holes of the plug 12 can be accurately aligned with the pins on the socket 11 for plugging, the connection convenience is improved, on the other hand, the plugging relation between the plug board 121 and the insertion groove 111 can be utilized to limit the relative rotation freedom degree of the plug 12 and the socket 11, the plugging connection stability can be improved, and the phenomenon that the pins are bent and damaged due to the relative rotation between the plug 12 and the socket 11 can be avoided.
In this embodiment, the plug board 121 is provided with a first insertion hole 123, a groove wall of the slot 111 is provided with a second insertion hole 113 corresponding to the first insertion hole 123, and when the plug 12 and the socket 11 are in the plugging state, the locking end of the locking component 20 passes through the second insertion hole 113 and the first insertion hole 123 together. The locking end of the locking component 20 penetrates into the first jack 123 and the second jack 113 together, so that the plug board 121 is fixed in the slot 111, and the plug 12 and the socket 11 are in a plugging and locking state.
Further, referring to fig. 2, a travel switch 50 is disposed in the slot 111, the travel switch 50 is electrically connected to the controller 40, and the plug board 121 abuts against the travel switch 50 when the plug 12 and the socket 11 are in the plugging state. After the plug 12 is inserted in place on the receptacle 11, the travel switch 50 is pressed by the plug board 121 to be conducted, at this time, the controller 40 controls the locking component 20 to act, the locking end of the locking component 20 penetrates into the first jack 123 and the second jack 113, and the insertion state of the plug 12 and the receptacle 11 can be locked, so that the action logic is simple, and the stability is high.
Alternatively, the latch assembly 20 of this embodiment is configured as shown in fig. 2, and the latch assembly 20 includes a telescopic driver 21 and a latch rod 22; the telescopic driving member 21 is disposed on the protection box 10 and axially aligned with the second insertion hole 113, and the telescopic driving member 21 is electrically connected to the controller 40; the locking rod 22 is disposed at the output end of the telescopic driving member 21, and is driven by the telescopic driving member 21 to penetrate into the first insertion hole 123 and the second insertion hole 113. Specifically, the telescopic driving member 21 is a linear motor or an electromagnetic telescopic rod. The controller 40 controls the telescopic driving member 21 to extend or retract, so as to drive the locking rod 22 to penetrate into or withdraw from the first jack 123 and the second jack 113, thereby realizing locking or unlocking state, and the device has simple and stable structure and high reliability.
In some embodiments, referring to fig. 1, a broadcaster 13 and an alarm lamp 14 are disposed in the shielding box 10, and the broadcaster 13 and the alarm lamp 14 are electrically connected to the controller 40 respectively. When the plug 12 and the socket 11 are inserted in place (by using a signal fed back to the controller 40 by the stroke switch 50 or the micro switch), the current detector 30 detects the current sent by the parameter tester 60 to confirm that the grounding switch 70 is closed and the locking state and the unlocking state of the locking component 20 are switched, and sends out corresponding prompt voices to remind an operator of correct operation, and when a special condition occurs (when the plug 12 is pulled out because the controller 40 does not receive the closing signal of the grounding switch 70), the alarm lamp 14 is lighted to remind the operator, and by using the guiding function of the sound transmitter 13 and the warning function of the alarm lamp 14, the misoperation of the operator can be prevented, so that electric shock accidents are avoided, and the operation safety is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Line parameter test protector, its characterized in that includes:
the protection box is embedded with a plurality of sockets, each socket is respectively used for connecting each test line on a parameter tester, each socket is connected with a plug in an inserted manner, and each plug is respectively used for correspondingly connecting each phase of power transmission line;
the locking assemblies are arranged on the protective box and are respectively used for locking the plugging state of each plug and the corresponding socket;
the current detector is connected to a grounding circuit at the downstream of the grounding disconnecting link and is used for detecting a current signal on the grounding circuit;
the controller is arranged in the protective box, is electrically connected with the locking assembly, is in wireless communication connection with the parameter tester and the current detector respectively, can be used for sending a current output signal to the parameter tester, can also be used for receiving a detection signal fed back by the current detector and controlling the locking assembly to keep or release a locking state according to the detection signal.
2. The line parameter test guard of claim 1, wherein said jack is a male plug and said plug is a female plug.
3. The line parameter test protector of claim 2, wherein a recessed cavity is formed in the plug end wall of the plug, and the socket of the plug is located on the cavity bottom wall of the recessed cavity.
4. The line parameter test guard of claim 2 wherein said mating end of said jack defines a receiving cavity for receiving said mating end of said plug.
5. The line parameter testing protector according to claim 1, wherein a slot is formed in a side wall of the plugging end of the socket, a plug board is arranged on a side wall of the plugging end of the plug, and the plug board is plugged into the slot when the plug and the socket are in a plugging state.
6. The device of claim 5, wherein the socket board has a first hole, the slot wall has a second hole corresponding to the first hole, and the locking end of the locking member passes through both the second hole and the first hole when the plug and the socket are in the plugged state.
7. The circuit parameter testing protector according to claim 6, wherein a travel switch is disposed in the slot, the travel switch is electrically connected to the controller, and the plug board abuts against the travel switch when the plug and the socket are in a plugged state.
8. The line parameter test guard of claim 6, wherein said latch assembly comprises:
the telescopic driving piece is arranged on the protective box and is axially aligned with the second jack, and the telescopic driving piece is electrically connected with the controller;
and the locking rod is arranged at the output end of the telescopic driving piece and is used for penetrating into the first jack and the second jack under the driving of the telescopic driving piece.
9. The line parameter testing guard of claim 8, wherein the telescoping drive member is a linear motor or an electromagnetic telescoping rod.
10. The line parameter testing guard of any one of claims 1-9, wherein a broadcaster and an alarm light are provided within the guard box, the broadcaster and the alarm light being electrically connected to the controller, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122959113.2U CN216532114U (en) | 2021-11-29 | 2021-11-29 | Circuit parameter test protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122959113.2U CN216532114U (en) | 2021-11-29 | 2021-11-29 | Circuit parameter test protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216532114U true CN216532114U (en) | 2022-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122959113.2U Active CN216532114U (en) | 2021-11-29 | 2021-11-29 | Circuit parameter test protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216532114U (en) |
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2021
- 2021-11-29 CN CN202122959113.2U patent/CN216532114U/en active Active
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