An intelligent electric secondary pressure plate with forced locking function

Abstract

The present invention provides an intelligent electric secondary pressure plate with a forced locking function, which is fixed on the rotating shaft of a micro motor through one end of a pressure plate connecting piece; the clamping joint on the rotating shaft is clamped and limited with the block in the fixed end cover; the fixed end cover is also provided with an opening corresponding to the clamping joint; the opening is provided at the lower part of the block, which is used to realize the extrusion clamping and reverse push disengagement of the clamping joint and the block; the pressure shell is provided on one side of the pressure shell, and the other side of the pressure shell is penetrated with a copper stud; the other end of the pressure plate connecting piece is provided with a clamping part corresponding to the insulating column. The present invention combines the anti-mistake lock core of the micro secondary pressure plate with the anti-mistake computer key to realize the forced locking function; at the same time, through the extrusion clamping and reverse push disengagement of the pressure plate connecting piece and the micro motor upper mechanism on the anti-mistake lock core, the forced locking and emergency unlocking applicable to the relay protection device are realized, which greatly reduces the occurrence of the problem of misoperation of the secondary pressure plate and ensures the safe operation of the power system.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment of power systems, and in particular to an intelligent electric secondary pressure plate with a forced locking function. Background Art

[0002] During substation operation, relay protection is the guarantee for reliable and continuous power supply of the power system. Reliable and safe operation of relay protection devices, in addition to the functions and performance of the protection devices themselves, is also a very important measure to prevent misoperation. The secondary pressure plate is the secondary equipment most frequently involved in relay protection operations. It is the bridge and link between the relay protection device or the automatic device and the external wiring, and is related to whether the function and action output of the relay protection can function normally. When the operation mode of the power system is changed or the equipment is overhauled, the pressure plate is often involved. If it is mistakenly put in or missed, it will directly affect the realization of the relay protection function. In severe cases, it may even cause the protection to refuse to operate or malfunction, affecting the safe operation of the power grid.

[0003] At present, the protection pressure plate of the existing technology is manually operated by the operating personnel. In actual operation, due to improper throwing and withdrawing of the pressure plate, false operation and misoperation of the relay protection system often occur, which leaves serious hidden dangers to the safe operation of the power system and needs to be improved urgently. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent electric secondary pressure plate with a forced locking function, aiming to solve the current technical problems of mis-throwing and missing-throwing of the pressure plate.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] An intelligent electric secondary pressure plate with a forced locking function, comprising a lock housing, a micro motor, an anti-error code sheet, a pressure plate connecting sheet and a pressure housing;

[0007] The error-proofing piece and the micro motor are arranged in the lock housing from top to bottom; a fixed end cover at one end of the pressure plate connecting piece is sleeved on the rotating shaft of the micro motor; the clamping joint on the rotating shaft is clamped and limited with the stopper in the fixed end cover;

[0008] The fixed end cover is also provided with an opening corresponding to the clamping joint; the opening is provided at the lower part of the stopper, and is used to realize the extrusion clamping and reverse push disengagement of the clamping joint and the stopper;

[0009] The compression shell is arranged on one side of the compression shell, and a copper stud is passed through the other side of the compression shell; the other end of the compression plate connecting piece is provided with a clamping part corresponding to the copper stud.

[0010] As a further improvement of the present invention, a computer key is further provided; the computer key is matched with the error-proofing chip.

[0011] As a further improvement of the present invention, the compression shell is also provided with an induction light and a voice prompter.

[0012] As a further improvement of the present invention, an operating window is further provided on the pressure shell; the operating window is used to realize the movement of the pressure plate connecting piece.

[0013] As a further improvement of the present invention, a copper stud is further provided; the copper stud is arranged at the bottom of the compression shell, and a nut is connected to the copper stud.

[0014] As a further improvement of the present invention, the clamping joint is arranged on both radial sides of the rotating shaft through a connecting portion; the hook head of the clamping joint is inverted and extends outward; and the upper part of the hook head abuts against the stopper to limit the position.

[0015] As a further improvement of the present invention, the card connector is made of plastic.

[0016] As a further improvement of the present invention, two groups of openings are provided at the lower portion of the fixed end cover; the stopper is provided at the top of the opening, and stop portions are provided on both side edges along the axial direction of the rotating shaft.

[0017] As a further improvement of the present invention, the micro motor is threadedly connected in the lock housing; the lock housing is a cylindrical hollow body, divided into two parts, an upper inner cavity and a lower inner cavity, and a rotating thread is provided in the upper and lower inner cavities, and an electrode, an anti-error code piece and a chip are rotated in the upper inner cavity of the lock housing; the lower inner cavity of the lock housing is provided with a micro motor.

[0018] As a further improvement of the present invention, the connecting portion extends outwardly to achieve a staggered arrangement of the connecting portion and the end of the stopper, so as to achieve upper and lower limit settings of the stopper.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention combines a micro secondary pressure plate anti-error lock core with an anti-error computer key to realize a forced locking function; at the same time, through the squeezing, clamping and reverse pushing disengagement of the pressure plate connecting piece and the micro motor upper mechanism on the anti-error lock core, forced locking and emergency unlocking that can be applied to relay protection devices are realized, which greatly reduces the occurrence of the problem of misoperation of the secondary pressure plate and ensures the safe operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. It is obvious that the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a front view of the present invention;

[0024] Figure 3 A top view of the present invention;

[0025] Figure 4 It is a schematic diagram of the compression shell structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the installation structure of the pressure plate connecting piece of the present invention;

[0027] Figure 6 for Figure 5 A cross-sectional view of

[0028] Figure 7 It is a schematic diagram of the structure of the fixed end cover and the card connector of the present invention being connected with each other;

[0029] Figure 8 It is a structural schematic diagram of the pressing plate connecting piece of the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the micro motor of the present invention;

[0031] Description of the numbers in the figure:

[0032] 1. Lock shell; 2. Micro motor; 21. Rotating shaft; 211. Joint; 2111. Hook; 212. Connecting part; 3. Anti-error code piece; 4. Pressure plate connecting piece; 41. Fixed end cover; 411. Block; 412. Opening; 413. Blocking part; 5. Computer key; 6. Pressure shell; 61. Operating window; 7. Induction light; 8. Voice prompter; 9. Copper stud; 10. Nut; 20. Electrode; 30. Chip. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Combined with Figures 1 to 9 The present invention provides an intelligent electric secondary pressure plate with a forced locking function, aiming to solve the current technical problems of mis-throwing and missing-throwing of the pressure plate.

[0035] Specifically, it includes a lock housing 1, a micro motor 2, an anti-error code sheet 3, a pressure plate connecting sheet 4 and a pressure housing 6;

[0036] The error-proofing piece 3 and the micro motor 2 are arranged in the lock housing 1 from top to bottom; a fixed end cover 41 at one end of the pressure plate connecting piece 4 is sleeved on the rotating shaft 21 of the micro motor 2; the clamping joint 211 on the rotating shaft 21 is clamped and limited with the stopper 411 in the fixed end cover 41;

[0037] The fixed end cover 41 is also provided with an opening 412 corresponding to the clamping joint 211; the opening 412 is provided at the lower part of the stopper 411, and is used to realize the extrusion clamping and reverse pushing disengagement of the clamping joint 211 and the stopper 411;

[0038] The compression shell 6 is arranged on one side of the compression shell 6 , and a copper stud 9 is penetrated on the other side of the compression shell 6 ; the other end of the compression plate connecting piece is provided with a clamping portion corresponding to the copper stud 9 .

[0039] The present invention combines a micro secondary pressure plate anti-error lock core with an anti-error computer key to realize a forced locking function; at the same time, through the squeezing, clamping and reverse pushing disengagement of the pressure plate connecting piece and the micro motor upper mechanism on the anti-error lock core, forced locking and emergency unlocking that can be applied to relay protection devices are realized, which greatly reduces the occurrence of the problem of misoperation of the secondary pressure plate and ensures the safe operation of the power system.

[0040] Furthermore, a computer key 5 is provided; the computer key 5 is matched with the error-proofing chip 3 .

[0041] Furthermore, the compression shell 6 is also provided with a sensor light 7 and a voice prompter 8 .

[0042] Furthermore, an operating window 61 is provided on the pressure shell 6; the operating window 61 is used to realize the movement of the pressure plate connecting piece.

[0043] Furthermore, a copper stud 9 is provided; the copper stud 9 is provided at the bottom of the compression shell 6 , and a nut 10 is connected to the copper stud 9 .

[0044] Furthermore, the clamping joint 211 is arranged on both radial sides of the rotating shaft 21 through the connecting portion 212; the hook head 2111 of the clamping joint 211 is inverted and extends outward; the upper part of the hook head 2111 abuts against the stopper 411 to limit the position.

[0045] Furthermore, the clamping joint 211 is made of plastic and has a certain elasticity.

[0046] Preferably, the chip 30 , the error-proof chip 3 , and the electrode 20 are aligned with the rotating thread in sequence, rotated in the upper inner cavity of the lock housing 1 and abutted against the limit plate, and then the micro motor 2 is rotated in the lower inner cavity of the lock housing 1 and abutted against the chip 30 .

[0047] Preferably, an RFID code chip can be used, which needs to be used in conjunction with an existing computer key. The RFID code chip and the computer key use wireless radio frequency technology to check the stored coded information. The codes stored in the RFID code chip are name codes and status codes. Only when the information stored in the computer key matches the information stored in the RFID code chip, the unlocking button of the computer key will be unlocked.

[0048] Furthermore, the fixed end cover 41 is sleeved on the rotating shaft 21; the fixed end cover 41 is a cover structure with an opening at the bottom;

[0049] Furthermore, two groups of openings 412 are provided at the lower part of the fixed end cover 41; the stopper 411 is provided at the top of the opening 412, and a stopper 413 is provided on both side edges along the axial direction of the rotating shaft 21, so that the clamping joint 211 will not rotate circumferentially after being clamped with the baffle, and the limit position is set in the barrier accommodating cavity.

[0050] Furthermore, the micro motor 2 is threadedly connected in the lock housing 1; the lock housing 1 is a cylindrical hollow body, divided into two parts, an upper inner cavity and a lower inner cavity, and a rotating thread is provided in the upper and lower inner cavities. An electrode 20, an anti-error code chip 3 and a chip 30 are screwed in the upper inner cavity of the lock housing 1; the micro motor 2 is provided in the lower inner cavity of the lock housing 1.

[0051] Furthermore, the connecting portion 212 extends outward to achieve the misalignment setting of the connecting portion 212 and the end of the block 411, so as to achieve the upper and lower limit of the block 411; it can avoid that under normal circumstances, the pressure plate connecting piece 4 is rotated by the micro motor 2 to achieve the upper and lower limit of the pressure plate connecting piece 4, and the setting is more reasonable and the structural setting is ingenious.

[0052] It should be noted that, under normal circumstances, the pressure plate connecting piece 4 is sleeved on the rotating shaft 21 through the fixed end cover 41 and moves downward along the rotating shaft 21. The stopper 411 squeezes the hook head 2111 of the clamping joint 211 and offsets it inward until the recessed part of the hook head 2111. Due to the elastic deformation of the clamping joint 211, the hook head 2111 enters the opening 412, and the upper end of the hook head 2111 abuts against the lower end of the stopper 411 to limit the position, so as to realize the extrusion and clamping of the pressure plate connecting piece 4. Since the clamping joint 211 is arranged in the partition accommodating cavity at this time, the positioning connection between the pressure plate connecting piece 4 and the rotating shaft 21 of the micro motor 2 is realized, and the rotating shaft 21 can be directly rotated to realize the rotation of the pressure plate connecting piece 4.

[0053] In case of an emergency (such as a failure of the micro motor 2 or a loss of the computer key 5), the two rods can be respectively inserted into the opening 412 and abutted against the hook head 2111, and the hook head 2111 can be pushed inward. Due to the elastic force of the clamping joint 211, the hook head 2111 elastically retreats inward and disengages from the block 411 to enter the inner side of the fixed end cover 41. At this time, the pressure plate connecting piece 4 and the rotating shaft 21 are coaxially rotatably connected, and the pressure plate connecting piece 4 can be directly rotated to achieve unlocking.

[0054] The electrode 20, the error-proof chip 3, the chip 30 and the micro motor 2 are connected in sequence to detect and control the forward and reverse states of the micro motor. The rotating shaft is connected to the micro motor, and the pressure plate connecting piece is arranged on the rotating shaft of the intelligent error-proof lock core and is limited on the copper stud 9 by the rotation of the micro motor.

[0055] The two copper studs 9 are respectively arranged on the two side edges of the compression shell 6; the copper stud 9 on the left side is penetrated on the compression shell 6 and is threadedly connected with the compression shell 6; the copper stud 9 on the right side is penetrated on the compression shell 6, and the upper end abuts against the bottom surface of the rotating shaft.

[0056] Before using this application, a copper stud is passed through the secondary screen cabinet plate, and the pressure plate shell and the secondary screen cabinet plate are clamped and positioned by a locking nut; the multimeter needle and two copper studs can be used to test whether the potential is correct; after confirming that the test potential is correct, the operator starts the micro motor to rotate the pressure plate connecting piece, and the clamping part of the pressure plate connecting piece is clamped and positioned with the copper stud to complete the connection and put it into use; when it is necessary to exit or remove the pressure plate connecting piece, the operator can start the micro motor to rotate the rotating shaft in the opposite direction.

[0057] The anti-error code piece is used to collect the unique lock code corresponding to the secondary pressure plate. The computer key is exchanged and read and written through wireless communication. It is an existing technology and can be used in conjunction with the electrode 20 and the anti-error code piece. During on-site operation, the computer key is inserted into the electrode 20, and the electrode 20 cooperates with the computer key to switch on and off. The chip 30 connected to the anti-error code piece, when the computer key collects the anti-error code piece correctly, the chip 30 sends a control signal, and the micro-motor connected to the chip 30 changes the input and output state of the pressure plate connecting piece on the rotating shaft of the micro-motor according to the control signal, that is, 90 degrees input and 45 degrees output. When the pressure plate connecting piece is put in, the induction light 7 on the static contact sleeve lights up, and the voice prompter 8 voice prompts that the secondary pressure plate has been put in. When the pressure plate connecting piece is withdrawn, the induction light 7 on the static contact sleeve goes out, and the voice prompter 8 voice prompts; and the secondary pressure plate is withdrawn in an emergency, and the intelligent electric secondary pressure plate with forced locking function can be operated.

[0058] The present invention mainly combines an intelligent electric secondary pressure plate with a forced locking function and a microcomputer anti-error computer key. The computer key transmits the primary and secondary equipment locking logic operation tickets pre-set in the anti-error host to the computer key in sequence through a transmission adapter. When the operating personnel simulate the trial operation, they go to the site according to the operation sequence to find the secondary pressure plates with the corresponding equipment numbers one by one, and insert the computer key into the intelligent anti-error lock core electrode 20. The computer key makes an intelligent judgment based on the operation rules set in the operation ticket, and automatically checks the correctness of the anti-error code piece. If it is consistent with the anti-error code piece, the computer key voice prompts that the operation is correct, the computer key is connected to the electrode 20, and the chip 30 sends a control signal to the micro-motor to start the rotating shaft, and the pressure plate connecting piece on the rotating shaft is put in or out from the operation window 61. After the operation is completed, the next operation is allowed. If the operation is wrong, the computer key will alarm through voice prompts to prompt the operator to correct it, thereby achieving the purpose of preventing secondary misoperation.

[0059] The device has the advantages of simple structure, convenient installation and operation, reusability, economy and practicality, flexible use, ingenious design and compact structure, and has a good market prospect.

[0060] It should be noted that some parts not described in detail in the present invention belong to the well-known technology in the art, or can be directly purchased from the market, and those skilled in the art can obtain them without creative work. The specific connection method is extremely widely used in this art or in daily life, and will not be described in detail here.

[0061] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0066] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An intelligent electric secondary pressure plate with a forced locking function, characterized in that: It includes a lock housing, a micro motor, an error-proof piece, a pressure plate connecting piece and a pressure housing; The error-proofing sheet and the micro motor are arranged in the lock housing from top to bottom; a fixed end cover is arranged at one end of the pressure plate connecting sheet, and the fixed end cover is sleeved on the rotating shaft of the micro motor; the clamping joint on the rotating shaft is clamped and limited with the stopper in the fixed end cover; The fixed end cover is also provided with an opening corresponding to the clamping joint; the opening is provided at the lower part of the stopper, and is used to realize the extrusion clamping and reverse push disengagement of the clamping joint and the stopper; The lock housing is arranged on one side of the compression housing, and a copper stud is passed through the other side of the compression housing; the other end of the pressure plate connecting piece is provided with a clamping portion corresponding to the copper stud; A computer key is also provided; the computer key is matched with the error-proof chip; The compression shell is also provided with an induction light and a voice prompter.

2. The intelligent electric secondary pressure plate with forced locking function according to claim 1 is characterized in that: An operating window is also provided on the pressure shell; the operating window is used to realize the movement of the pressure plate connecting piece.

3. The intelligent electric secondary pressure plate with forced locking function according to claim 1 is characterized in that: The clamping joint is arranged on both radial sides of the rotating shaft through a connecting portion; the hook head of the clamping joint is inverted and extends outward; the upper part of the hook head abuts against the stopper to limit the position.

4. The intelligent electric secondary pressure plate with forced locking function according to claim 1 is characterized in that: The card connector is made of plastic.

5. The intelligent electric secondary pressure plate with forced locking function according to claim 1 is characterized in that: Two groups of openings are provided at the lower part of the fixed end cover; the stopper is provided at the top of the opening, and stopper portions are provided on both sides along the axial direction of the rotating shaft.

6. The intelligent electric secondary pressure plate with forced locking function according to claim 1 is characterized in that: The micro motor is threadedly connected in the lock housing; the lock housing is a hollow cylindrical body, divided into an upper inner cavity and a lower inner cavity, the upper and lower inner cavities are provided with rotating threads, and electrodes, error-proof chips and chips are rotatably arranged in the upper inner cavity of the lock housing; the lower inner cavity of the lock housing is provided with a micro motor.

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