A lock body structure of a secondary pressure plate intelligent micro pressure plate connecting piece

Abstract

The present invention provides a lock body structure of a secondary pressure plate intelligent micro pressure plate connecting piece, which is provided with a lock shell, a micro motor, an anti-error code piece and a pressure plate connecting piece; the anti-error code piece and the micro motor are arranged in the lock shell 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 a block in the fixed end cover; the fixed end cover is also provided with an opening corresponding to the clamping joint; the opening is arranged at the lower part of the block, which is used to realize the extrusion clamping and reverse push-off of the clamping joint and the block. The present invention realizes the clamping positioning and loosening of the pressure plate connecting piece and the rotating shaft by correspondingly arranging the clamping joint on the rotating shaft and the block of the pressure plate connecting piece, thereby realizing the positioning rotation and emergency unlocking of the pressure plate connecting piece applicable to the relay protection device, with ingenious design and simple and practical structure.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment of a power system, and in particular to a lock body structure of a secondary pressure plate intelligent micro pressure plate connecting piece. Background Art

[0002] In substation operation, relay protection is the guarantee of 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 device itself, 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. It 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 to throw and withdraw the pressure plate. 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 for the safe operation of the power system. Therefore, an intelligent electric secondary pressure plate with a forced locking function is proposed, which drives the pressure plate connecting piece to rotate by a micro motor. However, since there is no suitable lock body structure at this stage, a lock body structure of an intelligent micro pressure plate connecting piece of the secondary pressure plate is designed. Summary of the invention

[0004] The purpose of the present invention is to provide a lock body structure of a secondary pressing plate intelligent micro pressing plate connecting piece, which has a simple and practical structure.

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

[0006] A lock body structure of a secondary pressure plate intelligent micro pressure plate connecting piece, comprising a lock shell, a micro motor, an error-proof piece and a pressure plate connecting piece; the error-proof piece and the micro motor are arranged in the lock shell 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; a clamping joint on the rotating shaft is clamped and limited with a stopper in the fixed end cover;

[0007] The fixed end cover is also provided with an opening corresponding to the clamping joint; the opening is arranged 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.

[0008] As a further improvement of the present invention, a computer key is further provided; the computer key is matched with the error-proofing chip.

[0009] 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.

[0010] As a further improvement of the present invention, the card connector is made of plastic.

[0011] As a further improvement of the present invention, the fixed end cover is sleeved on the rotating shaft.

[0012] As a further improvement of the present invention, the fixed end cover is a cover structure with an opening at the bottom.

[0013] As a further improvement of the present invention, the lower portion of the fixed end cover is provided with two groups of openings.

[0014] As a further improvement of the present invention, the stopper is provided at the top of the opening, and stopper portions are provided on both side edges along the axial direction of the rotating shaft.

[0015] 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.

[0016] 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.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention realizes the clamping positioning and loosening of the pressing plate connecting piece and the rotating shaft by correspondingly arranging the clamping joint on the rotating shaft and the stopper of the pressing plate connecting piece, thereby realizing the positioning rotation and emergency unlocking of the pressing plate connecting piece applicable to the relay protection device, with ingenious design, simple and practical structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0021] Figure 2 is a cross-sectional view of the present invention;

[0022] Figure 3 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;

[0023] Figure 4 It is a schematic diagram of the operation of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the lock housing of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the micro motor of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the pressing plate connecting piece of the present invention;

[0027] Description of the numbers in the figure:

[0028] 1. Lock housing; 2. Micro motor; 21. Rotating shaft; 211. Card joint; 2111. Hook; 212. Connecting part; 3. Error-proof sheet; 4. Press plate connecting sheet; 41. Fixed end cover; 411. Block; 412. Opening; 413. Blocking part; 5. Computer key; 6. Electrode; 7. Chip. DETAILED DESCRIPTION

[0029] 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.

[0030] Combined with Figures 1 to 7 The purpose of the present invention is to provide a lock body structure of a secondary pressure plate intelligent micro pressure plate connecting piece, which has a simple and practical structure.

[0031] Specifically, it comprises a lock housing 1, a micro motor 2, an error-proof sheet 3 and a pressure plate connecting sheet 4; the error-proof sheet 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 sheet 4 is sleeved on the rotating shaft 21 of the micro motor 2; a clamping joint 211 on the rotating shaft 21 is clamped and limited with a stopper 411 in the fixed end cover 41;

[0032] The fixed end cover 41 is further provided with an opening 412 corresponding to the clamping joint 211 ; the opening 412 is provided at the lower part of the stopper 411 to realize the extrusion clamping and reverse pushing disengagement of the clamping joint 211 and the stopper 411 .

[0033] The present invention realizes the clamping positioning and loosening of the pressing plate connecting piece and the rotating shaft by correspondingly arranging the clamping joint on the rotating shaft and the stopper of the pressing plate connecting piece, thereby realizing the positioning rotation and emergency unlocking of the pressing plate connecting piece applicable to the relay protection device, with ingenious design, simple and practical structure.

[0034] Furthermore, a computer key 5 is provided; the computer key 5 is matched with the anti-error code piece 3;

[0035] 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.

[0036] Furthermore, the clamping joint 211 is made of plastic and has a certain elasticity.

[0037] Align the chip 7 , the error-proof chip 3 , and the electrode 6 with the rotating thread in sequence, rotate them in the upper inner cavity of the lock housing 1 and abut against the limit plate, then rotate the micro motor 2 in the lower inner cavity of the lock housing 1 and abut against the chip 7 .

[0038] 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;

[0039] 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.

[0040] 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 6, an anti-error code chip 3 and a chip 7 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.

[0041] 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.

[0042] 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.

[0043] In case of an emergency (such as a micromotor failure or a computer key being lost), 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 card 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 connected for rotation, and the pressure plate connecting piece 4 can be directly rotated to achieve unlocking.

[0044] Furthermore, the anti-error code sheet 3 is used to collect the unique lock code of the corresponding secondary pressure plate, and data exchange and reading and writing are performed through wireless communication. The computer key 5 is a prior art and can be used in conjunction with the electrode 6 and the anti-error code sheet 3. During on-site operation, the computer key 5 is inserted into the electrode 6, and the electrode 6 cooperates with the computer key 5 to turn on and off.

[0045] The chip 7 connected to the anti-error bit chip 3 sends a control signal when the computer key 5 collects the anti-error bit chip 3 correctly. The micro motor 2 connected to the chip 7 changes the opening and closing state of the rotating shaft 21 of the micro motor 2 according to the control signal. The rotating shaft 21 is opened at 90 degrees and closed at 45 degrees.

[0046] 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.

[0047] The present invention mainly combines the secondary pressure plate anti-error lock core and the microcomputer anti-error computer key 5. The computer key 5 transmits the primary and secondary equipment locking logic operation tickets pre-set in the anti-error host to the computer key 5 in sequence through the transmission adapter. When the operator simulates the trial operation, he finds the corresponding secondary pressure plate anti-error code piece 3 one by one on site according to the operation sequence. The computer key 5 makes an intelligent judgment according to the operation rules set in the operation ticket, and automatically checks the correctness of the anti-error code piece 3. If it is consistent with the anti-error code piece 3, the computer key 5 voice prompts that the operation is correct, the computer key 5 is connected to the electrode 6, and the chip 7 sends a control signal to the micro motor 2 to start the rotating shaft 21. After the operation is completed, the next operation is allowed. If the operation is wrong, the computer key 5 will alarm through voice prompts to prompt the operator to make corrections, thereby achieving the purpose of preventing secondary misoperation. 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, an emergency unlocking of the pressure plate connecting piece applicable to a relay protection device is 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.

[0048] 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 good market prospects.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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. A lock body structure of a secondary pressure plate intelligent micro pressure plate connecting piece, characterized in that: It includes a lock housing, a micro motor, an error-proof sheet and a pressure plate connecting sheet; the error-proof sheet 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 sheet is sleeved on the rotating shaft of the micro motor; the clamping joint on the rotating shaft is clamped and limited with a 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 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; The connecting portion extends outwardly to realize the staggered arrangement of the connecting portion and the end of the stopper, so as to realize the upper and lower limit of the stopper.

2. The lock body structure of the secondary pressing plate intelligent micro pressing plate connecting piece according to claim 1 is characterized in that: A computer key is also provided; the computer key is matched with the error-proofing sheet.

3. The lock body structure of the secondary pressing plate intelligent micro pressing plate connecting piece according to claim 1 is characterized in that: The card connector is made of plastic.

4. The lock body structure of the secondary pressing plate intelligent micro pressing plate connecting piece according to claim 1 is characterized in that: The fixed end cover is sleeved on the rotating shaft.

5. The lock body structure of the secondary pressing plate intelligent micro pressing plate connecting piece according to claim 1 is characterized in that: The fixed end cover is a cover structure with an opening at the bottom.

6. The lock body structure of the secondary pressing plate intelligent micro pressing plate connecting piece according to claim 1, characterized in that: There are two groups of openings at the lower part of the fixed end cover.

7. The lock body structure of the secondary pressing plate intelligent micro pressing plate connecting piece according to claim 1, characterized in that: The stopper is arranged at the top of the opening, and stopper portions are arranged on both sides along the axial direction of the rotating shaft.

8. The lock body structure of the secondary pressing plate intelligent micro pressing plate connecting piece according to claim 1, 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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