A drawer switch cabinet interlocking type hand push mechanism based on smart grid

Abstract

The application discloses an interlocking type hand pushing mechanism for a drawer switch cabinet based on a smart grid, and relates to the technical field of hand pushing mechanisms for drawer switch cabinets, which comprises a drawer and a shaft rod, a rotating wheel and a second component in a first component. The second component comprises a limiting cavity channel in the rotating wheel, the rotating wheel is slidably sleeved on the shaft rod through the limiting cavity channel, and the end of the shaft rod is fixedly connected with a spring B. The second component can accurately limit the rotating wheel, so that the problem of "idling rotation or small rotation of the rotating wheel in a non-working state" in the prior art is avoided, the drawer can be stably kept at a preset drawing, isolation, experiment or connection station after operation, displacement does not occur due to mechanical defects, human negligence or environmental interference, the core pain point of "mismatch between the station and the circuit state" is fundamentally solved, and the long-term stability of the drawer position in each station is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drawer switch cabinet hand push mechanism, in particular to an interlocking type hand push mechanism for drawer switch cabinet based on smart grid. BACKGROUND

[0002] In the smart grid operation system, as the core equipment of power distribution and control, the work station switching of the internal drawer of the drawer switch cabinet is directly related to the power supply stability and operation safety of the power grid. In order to realize the accurate switching of the drawer among the four key work stations of drawing out, isolation, experiment and connection, the existing technology generally uses a hand push mechanism as the core executive component. Through the driving of the transmission system by the handle, the drawer is moved along the guide rail, and the work station locking is completed by cooperating with the positioning and interlocking structure, so as to ensure the accurate matching of the circuit on-off state and equipment operation demand in each work station, which is an important mechanical support to ensure the reliable operation of the power grid.

[0003] However, the existing hand push mechanism is prone to transmission abnormality in non-working state in actual application due to multiple factors. Specifically, after the operation is completed, the rotating wheel which should be kept stable by the positioning mechanism and the locking mechanism often appears idle or small amplitude rotation due to human operation negligence or external environmental interference. The above abnormal rotation will directly cause the drawer to deviate from the preset work station, which will destroy the circuit on-off logic. For example, if the drawer in the connection work station appears small amplitude back-off, it will cause poor contact of the main circuit contact, which will cause circuit heating or arc discharge. If the drawer in the isolation work station is accidentally rotated, it will often cause the secondary circuit to be mistakenly connected, which will bring the risk of electric shock to the maintenance personnel. At the same time, the abnormal rotation of the rotating wheel will also damage the interlocking mechanism of the mechanism, resulting in mechanical constraint failure, increasing the probability of load operation, and further causing equipment burning, switch cabinet damage and other safety accidents, and even causing partial power grid power failure, which will affect the stability of power supply.

[0004] In addition, the transmission components of the existing hand push mechanism also face the practical problem of lubrication maintenance. Because the drawer switch cabinet is in a heat environment generated by the work of electrical components for a long time, the lubricant on the surface of the transmission component is prone to volatilization, loss or performance degradation due to high temperature, which will cause the lubrication effect to decrease. In the actual operation process, the staff often forget to supplement or replace the lubricant for the transmission component due to the complicated operation tasks, missed inspection cycle and other reasons. The above insufficient lubrication will cause the transmission component to appear obvious jamming phenomenon in the running process, and the rotating resistance of the handle will significantly increase during operation, which will not only affect the smoothness and accuracy of the work station switching, but also will aggravate the wear of the transmission gear, screw rod and guide rail, resulting in gradual decrease of transmission precision and shortening of the service life of the whole mechanism. Long-term insufficient lubrication may also cause mechanical jamming of the transmission component, which will force the switch cabinet to stop for maintenance, further increasing the operation cost and power supply interruption risk of the power grid.

[0005] In summary, the existing hand push mechanism has obvious deficiencies in transmission stability in non-working state and lubrication maintenance of transmission components, and these problems have become the key factors restricting the operation reliability of the drawer switch cabinet and threatening the safety of the power grid. Therefore, a new type of hand push mechanism with transmission component limiting function and auxiliary lubrication operation is urgently needed in the industry to solve the existing technical defects and improve the operation safety of the drawer switch cabinet and the stability of the power grid.

[0006] Therefore, the present application provides an interlocking type hand push mechanism for a drawer switch cabinet based on a smart grid to solve the above problems. SUMMARY

[0007] Therefore, an interlocking type hand push mechanism for a drawer switch cabinet based on a smart grid is proposed to solve the problems in the prior art.

[0008] To achieve the above purpose, the present application provides the following technical scheme: an interlocking type hand push mechanism for a drawer switch cabinet based on a smart grid, comprising: a drawer, further comprising: a shaft in the first component, a rotating wheel and a second component;

[0009] The second component includes a limiting cavity in the rotating wheel, the rotating wheel is slidably arranged on the shaft through the limiting cavity, the end of the shaft is fixedly connected with a spring B, and the end of the spring B away from the shaft is fixedly connected to the inner wall of the limiting cavity;

[0010] The center of the end of the shaft is fixedly connected with an electric contact A, the inner wall of the rotating wheel is fixedly connected with an electric contact B, and the outer wall of the drawer is provided with an indicator light;

[0011] The outer end of the rotating wheel is fixedly connected with a buckle piece, one side of the rotating wheel is provided with an extension plate, a moving piece is vertically slidably connected on the extension plate through a slot, a horizontal slot is symmetrically and vertically formed in the upper part of the moving piece, and an anti-misoperation slot is formed in the middle part of the moving piece;

[0012] The upper part of the moving piece is fixedly connected with a spring C, the extension plate is fixedly connected with an electric control telescopic rod, and the output end of the electric control telescopic rod is fixedly connected with an inclined block.

[0013] Preferably, the first component further comprises an auxiliary plate body fixed in the drawer, a interlocking plate is slidably connected to the outer side of the auxiliary plate body, and the side end of the interlocking plate is fixedly connected with a spring A;

[0014] The outer end of the shaft is fixedly connected with a hexagonal operation hole piece;

[0015] The extension plate is fixedly connected to the auxiliary plate body.

[0016] As preferred, the circular ring outer periphery of the hexagonal operation hole piece is equidistantly fixedly connected with gear teeth, and the hexagonal operation hole piece is drivingly connected with a transmission gear through the gear teeth.

[0017] As preferred, a third assembly is further included;

[0018] The third assembly includes a plug-in tooth that is plugged into the gear teeth, and an annular groove is formed in the plug-in tooth.

[0019] The inner cavity of the gear teeth is fixedly connected with a cavity sleeve, and one end of the cavity sleeve away from the gear teeth fixed wall is slidably arranged in the annular groove.

[0020] As preferred, the inner wall of the gear teeth is fixedly connected with a spring D, and one end of the spring D away from the gear teeth fixed wall is fixedly connected with the plug-in tooth.

[0021] The cavity sleeve is sleeved outside the spring D, and a cotton strip is arranged on the outer periphery of the cavity sleeve and in the inner cavity of the gear teeth.

[0022] Equidistantly through holes are formed in the gear teeth.

[0023] As preferred, the inner cavity of the gear teeth is filled with lubricating oil.

[0024] As preferred, the shaft rod is composed of a column rod and a long strip plate.

[0025] As preferred, the buckle piece is composed of a round piece and a long strip block, and the mistaken touch prevention groove is composed of a circular through groove and a long strip through groove.

[0026] Compared with the prior art, the present application provides an interlocking type hand-operated pushing mechanism for a drawer switch cabinet based on a smart grid, which has the following beneficial effects:

[0027] 1、The second assembly can bring the following benefits: ensure transmission stability in non-working state, eliminate work position deviation hidden danger: the second assembly can avoid the problem of "idling / small amplitude rotation of the rotating wheel in non-working state" in the prior art, so that the drawer can be stably kept at the preset extracted, isolated, experimental or connected work position after operation, and displacement will not occur due to mechanical defects, human negligence or environmental interference, thereby fundamentally solving the core pain point of "mismatch between work position and circuit state", and ensuring long-term stability of the drawer position in each work position.

[0028] Maintain the validity of the circuit on-off logic, avoid safety risks: relying on the reliable limit of the rotating wheel, the drawer connected to the working position will not have a small back-off, which can avoid the problems of circuit heating, arc discharge and other problems caused by poor contact of the main circuit contact; The drawer of the isolation position will not rotate accidentally, which can prevent the risk of electric shock to maintenance personnel caused by the misconnection of the secondary circuit, and avoid circuit short circuit, component burning and other faults caused by abnormal contact, and fully guarantee the safe operation of the switch cabinet circuit and the safety of personnel operation;

[0029] Protect the integrity of the interlocking mechanism, reduce the probability of equipment and power grid accidents: abnormal rotation of the rotating wheel is an important inducement for the failure of the interlocking mechanism in the prior art, and the limiting action of the second component can prevent the rotating wheel from unexpected action, ensuring that the positioning mechanism and the interlocking structure are always in an effective working state, and the mechanical constraint is not failed, thereby greatly reducing the probability of load operation, reducing the occurrence of safety accidents such as equipment burning and switch cabinet damage, avoiding the problem of local power grid power failure caused by switch cabinet failure, and providing key support for the power supply stability of the smart grid.

[0030] 2、The second component can bring the following benefits: build a double physical safety barrier and greatly improve the operation redundancy protection capability: Compared with the single restriction of "only removing the interlocking plate can operate" in the prior art, the rotating wheel limiting design of the second component forms a "interlocking plate removal + rotating wheel limiting removal" double physical barrier. Even if one of the restrictions fails due to mechanical wear, environmental interference or accidental touch (such as the interlocking plate stuck and mismoved), the other rotating wheel limiting can still lock the transmission system tightly, preventing the working position switching operation from starting, and avoiding the risk of "single protection failure causing risk" from the structure, providing redundant protection for operation safety;

[0031] Intercept non-compliant operation process and reduce the risk of human error: The newly added rotating wheel limiting step forces the operator to complete the "remove the rotating wheel limiting" compliant action after removing the interlocking plate before continuing the operation. This design can effectively intercept non-compliant behaviors such as "directly starting the operation after accidentally touching the interlocking plate" and "ignoring the pre-check (such as the circuit breaker tripping state) and switching the working position". If the operator does not follow the process to confirm the equipment status and only removes the interlocking plate, it will not be able to proceed due to the rotating wheel limiting not being removed, thereby forcing them to follow the safety operation specification and reducing the risk of load switching and working position misoperation caused by negligence;

[0032] The reinforced interlocking mechanism logic loop avoids accidents caused by single constraint failure: If the original single interlocking plate design has mechanical jamming, contact oxidation or other failures, it is easy to cause constraint failure, and then cause unexpected rotation of the rotating wheel and deviation of the work position. The double restriction design of the second component forms a "cooperative interlocking" logic between the interlocking plate and the rotating wheel limit: only when both are completed, the transmission system can start. If any link is not released or fails, the operation cannot be performed. The above-mentioned logic loop can effectively avoid the problem of "single interlocking element failure breaking through the safety line", and ensure that even in the case of partial component abnormalities, the device safety state can still be maintained through another restriction, reducing the probability of circuit accidents caused by mechanical failure.

[0033] 3、In the application, the shaft rod can move horizontally in the limiting cavity but cannot rotate axially, which can bring the following benefits: simplify the mechanical structure and reduce the design and assembly complexity: the adaptive design of the shaft rod and the limiting cavity integrates two functions in one component, eliminating the double-component configuration of "independent transmission rod + independent limiting trigger rod" in traditional solutions. On the one hand, it reduces the number of internal parts of the switch cabinet, saving the limited installation space of the cabinet, especially suitable for the "compact" design trend of intelligent power grid drawer switch cabinets. On the other hand, the embedded design reduces the cooperation gap between multiple components; that is, it reduces the cooperation deviation caused by assembly errors in traditional double-component solutions, reducing the probability of mechanical failure from the source.

[0034] Ensure the reliability of the dual-function cooperation and avoid functional conflicts and failures: The characteristics of the shaft rod "horizontal movement without axial rotation" provide precise functional support for the two working states and avoid interference between functions. When the transmission position is switched, the adaptive structure of the shaft rod, the cylindrical through slot and the long strip plate and the long strip through slot can ensure stable torque transmission. When the shaft rod is rotated by the handle, it will not cause uneven force on the rotating wheel due to axial offset, ensuring the transmission accuracy during position switching. When the limiting buckle piece is triggered, the "non-axial rotation" characteristic of the shaft rod during horizontal movement ensures that the long strip plate always fits the long strip through slot of the limiting cavity, and the trigger position of the buckle piece will not be offset due to the rotation of the shaft rod. The two functions are realized based on the structural characteristics of the same shaft rod, without the need for additional function switching mechanism, avoiding the risk of delay or failure during multiple mechanism switching.

[0035] 4. This invention, by setting the limit opening and closing trigger of the rotating wheel within the process steps of cranking the handle, offers the following advantages: It constructs a continuous "operation-limit" action chain, eliminating the risk of forgetting due to process breaks: Embedding the limit opening and closing trigger of the rotating wheel within the process steps of cranking the handle creates an inseparable continuous action chain of "preparing to crank the handle → releasing / triggering the limit → switching the workstation." Compared to the existing design where "the limit trigger is independently set outside the drawer," operators do not need to switch operation scenarios or remember additional steps between cranking and limit operations. They can simply follow the natural flow of cranking to simultaneously complete the limit processing, fundamentally avoiding the problem of forgetting limit operations due to "process splitting and scenario switching."

[0036] Reduce the burden of human memory and minimize operational oversights in multi-tasking scenarios: In smart grid operation and maintenance scenarios, staff often need to handle tasks such as switching workstations and recording inspections for multiple switchgear units simultaneously. If the limit switch triggering step is independent of the cranking operation, it is easily overlooked due to distraction and the complexity of the tasks. This design deeply integrates the limit switch operation with the cranking operation. When operators touch the crank and prepare to switch workstations for extraction / isolation / experimentation / connection, they will naturally pay attention to the "limit switch step," eliminating the need for conscious memorization and significantly reducing the probability of operational oversights in multi-tasking scenarios. This design is especially suitable for high-frequency, multi-device operation and maintenance scenarios.

[0037] Enforcing compliance with the "limit priority" operating logic ensures safe operation: This design, through process connections, creates an implicit constraint that "the crank cannot be operated normally without addressing the limit switch." If the operator does not first trigger the limit switch opening and closing, the crank operation will be hindered because the limit switch is not released; for example, the shaft cannot drive the rotating wheel to rotate, thus forcing compliance with the "limit priority" safety operating procedure. This mechanism avoids the illegal operation space of "skipping the limit switch and directly operating the crank" found in existing technologies, ensuring that every workstation switch is based on a compliant limit switch state, effectively eliminating the risks of "forced cranking without releasing the limit switch leading to component damage" or "rotation in a non-working state due to failure to trigger the limit switch."

[0038] 5. The design of the third component in this invention brings the following benefits: It achieves linkage between lubrication and limit operation, completely eliminating the risk of forgotten lubrication: The third component triggers lubrication through the limit operation of the rotating wheel by the second component, eliminating the need for additional lubrication steps by operators; that is, when the operator releases or locks the limit of the rotating wheel, the third component simultaneously completes the lubrication of the meshing part between the rotating wheel and the transmission gear; this design solves the problem in the prior art where "operators forget to add lubricant due to busy maintenance or oversight during inspections," transforming passive "periodic lubrication" into active "operation-linked lubrication," ensuring that the core transmission components are always in an effective lubrication state;

[0039] Accurate targeted lubrication of key friction pairs, eliminating transmission jam to ensure smooth switching: The meshing part of the rotating wheel and the transmission gear is the core friction point of the hand-operated propulsion mechanism, and is also the area most prone to jam due to insufficient lubrication. The third component can accurately deliver lubricant to the meshing gap during the limiting operation, avoiding waste of lubricant or omission of key parts. Through the above-mentioned accurate supply of "operation lubrication", the friction resistance between the rotating wheel and the transmission gear can be effectively reduced, the phenomenon of jamming of the handle and poor rotation during switching is eliminated, and the smoothness of the drawer during switching between the pulling-out, isolation, experiment, and connection stations is ensured, thereby ensuring the operation efficiency and the accuracy of the station switching;

[0040] Without additional operation process, adapt to high-frequency operation scene to improve efficiency: In the prior art, separate lubrication operation requires the worker to stop, open the cabinet, position the lubrication point, and add lubricant, which is a cumbersome process and occupies operation time. The third component integrates lubrication into the limiting operation without adding any additional steps; the operator can complete lubrication simultaneously when normally performing rotating wheel limiting release / locking to switch stations without interrupting the operation process; the above-mentioned "operation integration" design is particularly suitable for the scene of high-frequency station switching of multiple switch cabinets in smart grids, which can effectively compress the operation time of a single device and improve the overall operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is the main structure diagram of the present application;

[0042] Figure 2 is another view of the main structure of the present application;

[0043] Figure 3 is a three-dimensional schematic diagram of the propulsion mechanism of the present application;

[0044] Figure 4 is a state diagram of the present application in which the interlocking plate release hexagonal operation hole piece is plugged;

[0045] Figure 5 is a structure position distribution diagram of the hexagonal operation hole piece, gear, shaft, rotating wheel, transmission gear, and buckle piece in the present application;

[0046] Figure 6 is a working state diagram of the first component and the second component in the present application;

[0047] Figure 7 is a three-dimensional schematic diagram of the working state of the second component in the present application;

[0048] Figure 8 is a front view of the working state of the second component in the present application;

[0049] Figure 9 is a structure diagram related to the transverse groove, electric control telescopic rod, and inclined block in the present application;

[0050] Figure 10 Figure 1 is a schematic diagram of the first component and the third component in the application;

[0051] Figure 11 Figure 1 is a schematic diagram of the first component and the third component in the application;

[0052] Figure 1 is a schematic diagram of the first component and the third component in the application; 1, drawer; first component: 201, auxiliary plate body; 202, interlocking plate; 203, spring A; 204, hexagonal operation hole; 205, tooth; 206, shaft; 207, rotating wheel; 208, transmission gear;

[0053] Figure 1 is a schematic diagram of the first component and the third component in the application; 1, drawer; first component: 201, auxiliary plate body; 202, interlocking plate; 203, spring A; 204, hexagonal operation hole; 205, tooth; 206, shaft; 207, rotating wheel; 208, transmission gear;

[0054] Figure 1 is a schematic diagram of the first component and the third component in the application; 1, drawer; first component: 201, auxiliary plate body; 202, interlocking plate; 203, spring A; 204, hexagonal operation hole; 205, tooth; 206, shaft; 207, rotating wheel; 208, transmission gear; DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0056] The application will be further described in detail below according to the drawings and embodiments.

[0057] EMBODIMENT

[0058] Please refer to Figures 4 to 8 To solve the problems mentioned in the technical solutions, the embodiment of the application provides an interlocking type hand-operated pushing mechanism for a drawer switch cabinet based on a smart grid, which comprises a drawer 1 and further comprises a shaft 206, a rotating wheel 207 and a second component in a first component.

[0059] The second component comprises a limiting cavity 301 formed in the rotating wheel 207, the rotating wheel 207 is slidably sleeved on the shaft 206 through the limiting cavity 301, the shaft 206 is fixedly connected with a spring B 302 at an end portion, and the end of the spring B 302 away from the shaft 206 is fixedly connected to the inner wall of the limiting cavity 301.

[0060] The electric contact piece A 303 is fixedly connected to the center of the end of the shaft 206, the electric contact piece B 304 is fixedly connected to the inner wall of the rotating wheel 207, and the indicating lamp 305 is arranged on the outer wall of the drawer 1; the buckle piece 306 is fixedly connected to the outer end of the rotating wheel 207, the extension plate 307 is arranged on one side of the rotating wheel 207, the moving piece 308 is vertically and slidably connected to the extension plate 307 through a slot hole, the horizontal slots 309 are symmetrically and through-provided on the upper part of the moving piece 308, and the anti-mis-touch groove 310 is through-provided in the middle part of the moving piece 308; the spring C 311 is fixedly connected to the upper part of the moving piece 308, the electric control telescopic rod 312 is fixedly connected to the extension plate 307, and the oblique block 313 is fixedly connected to the output end of the electric control telescopic rod 312.

[0061] The second assembly is used for limiting the rotating wheel 207 during the non-working period.

[0062] The limiting cavity 301 is composed of a column cavity and upper and lower symmetric long strip sliding grooves; the limiting cavity 301 is matched with the shaft 206, the shaft 206 can only slide horizontally in the limiting cavity 301, and cannot be axially rotated.

[0063] The electric contact piece A 303, the electric contact piece B 304 and the indicating lamp 305 are in an electrically connected relationship; when the electric contact piece A 303 and the electric contact piece B 304 are in contact, the indicating lamp 305 is always on at this time, so as to remind the operator that the rotating wheel 207 is in a limiting state processing (limiting / eliminating limiting) at this time, and the electric control telescopic rod 312 will adaptively perform the extension / contraction action under the control of the general controller at this time.

[0064] The buckle piece 306 is composed of a round piece and a long strip block.

[0065] The anti-mis-touch groove 310 is composed of a circular through groove and a long strip through groove; when the buckle piece 306 is not limited, the circular through groove coincides with the buckle piece 306, and when the buckle piece 306 needs to be limited, the moving piece 308 is moved upward, and the long strip through groove of the anti-mis-touch groove 310 is clamped on the long strip block of the buckle piece 306, so as to limit the buckle piece 306.

[0066] The oblique block 313 is used in cooperation with the horizontal slots 309.

[0067] Further embodiments: please refer to Figures 1 to 5 、 Figure 10 、 Figure 11The first assembly further comprises an auxiliary plate body 201 fixed in the drawer 1, an interlocking plate 202 laterally slidingly connected outside the auxiliary plate body 201, and a spring A 203 fixedly connected to a side end of the interlocking plate 202; a hexagonal operation hole member 204 is fixedly connected to an outer end of a shaft rod 206; an extension plate 307 is fixedly connected to the auxiliary plate body 201, equidistant tooth gears 205 are fixedly connected to the outer periphery of a ring of the hexagonal operation hole member 204, and a rotating wheel 207 is slidingly sleeved on the shaft rod 206 through a limiting cavity 301; the hexagonal operation hole member 204 is drivingly connected to a transmission gear 208 through the tooth gears 205.

[0068] The third assembly comprises a plug-in tooth 401 plugged into the tooth gear 205, and an annular groove 402 is formed in the plug-in tooth 401; a cavity sleeve 403 is fixedly connected to an inner cavity of the tooth gear 205, one end of the cavity sleeve 403 away from a fixed wall of the tooth gear 205 is slidingly arranged in the annular groove 402, a spring D 404 is fixedly connected to an inner wall of the tooth gear 205, and one end of the spring D 404 away from the fixed wall of the tooth gear 205 is fixedly connected to the plug-in tooth 401; the cavity sleeve 403 is sleeved outside the spring D 404, and a cotton plug 405 is arranged in the inner cavity of the tooth gear 205; and an oil leakage hole 406 is equidistantly and through-formed in the tooth gear 205.

[0069] The interlocking plate 202 is used to open and close the insertion hole of the hexagonal operation hole member 204 under the cooperation of the spring A 203, so as to block the insertion hole in the non-working state and avoid the insertion of the crank handle.

[0070] The insertion hole on the hexagonal operation hole member 204 is matched with the crank handle.

[0071] The shaft rod 206 is composed of a column rod and a long strip plate.

[0072] In use, the operator shakes the crank handle by hand, and under the cooperation of the rotating wheel 207, the transmission gear 208 and the subsequent transmission components, the drawer 1 can be pulled out / isolated / experimented / connected to the switching of the work station.

[0073] The third assembly is used for lubricating between the tooth gear 205 and the transmission gear 208, so as to prevent the rotating jam between them.

[0074] The cavity sleeve 403 is plugged into the annular groove 402.

[0075] In addition to being used for isolating the contact between the cotton plug 405 and the spring D 404, the cavity sleeve 403 can also be used for the movement guidance of the plug-in tooth 401.

[0076] The inner cavity of the tooth gear 205 is filled with lubricating oil, the lubricating oil can be adsorbed and stored by the cotton plug 405, and a certain amount of oil can be leaked out when the cotton plug 405 is extruded.

[0077] The working principle of all the contents in the above embodiment is as follows:

[0078] The mechanism realizes the whole-process management and control of the "non-working state safety locking, smooth switching of working state, and reset locking after switching" of the drawer 1 switch cabinet through the coordinated action of the first component (anti-misplug blocking), the second component (transmission limiting), and the third component (automatic lubrication). The specific working process is as follows, taken as an example of "switching the drawer 1 from the initial non-working state to the target work station (such as the connection work station)".

[0079] Initial non-working state:

[0080] When not in operation, the components of the mechanism are in the preset safety state, and the core constraint function is effective.

[0081] First component state: The interlocking plate 202 is blocked in the hexagonal operating hole 204 under the elastic force of the spring A 203, and the handle cannot be inserted, forming an "initial anti-misplug barrier"; the auxiliary plate body 201 is fixed inside the drawer 1, providing sliding support for the interlocking plate 202.

[0082] Second component state: The moving piece 308 is in the low position under the action of the spring C 311, and the circular through slot of the anti-misoperation groove 310 coincides with the buckle piece 306 at the outer end of the rotating wheel 207, which has not limited the rotating wheel 207;

[0083] The shaft rod 206 composed of a column rod and a long plate is in the initial position in the limiting cavity 301 of the rotating wheel 207, and the electric contact piece A 303 and the electric contact piece B 304 are not in contact, and the indicator light 305 is not on;

[0084] The electric control telescopic rod 312 is in the retracted state, and the inclined block 313 is not inserted into the transverse slot 309 of the moving piece 308.

[0085] Third component state: The plug-in teeth 401 are engaged with the transmission gear 208 under the elastic force of the spring D 404;

[0086] The cavity sleeve 403 is sleeved outside the spring D 404, and one end is slidably embedded in the annular groove 402 of the plug-in teeth 401;

[0087] The cotton 405 absorbs the lubricating oil filled in the inner cavity of the tooth 205, and the oil leakage hole 406 is in the closed state, with no lubricating oil leaking out.

[0088] Working process: from preparation operation to work station switching

[0089] Step 1: remove the anti-misplug blocking of the first component (initial unlocking)

[0090] The operator needs to perform "compliance start action" first: horizontally pull the interlocking plate 202, at which time the spring A 203 is forced to compress, making the interlocking plate 202 deviate from the insertion hole position of the hexagonal operating hole 204, exposing the insertion hole;

[0091] This step is the "first safety barrier unlocking", which forces the operator to actively trigger, avoids the risk of "accidental touch of the handle insertion", and ensures subjective safety confirmation before operation.

[0092] Step 2: Insert the handle and trigger the second component limit release (core unlocking)

[0093] Inserting the handle pushes the shaft 206: After inserting the handle into the hexagonal operating hole 204, the axial force of the handle will push the shaft 206 to move laterally along the limit cavity 301 of the rotating wheel 207;

[0094] Electric contact piece linkage and indicator light 305 reminder: The movement of the shaft 206 drives the electric contact piece A 303 to contact the electric contact piece B 304, which forms an electric circuit path, and the indicator light 305 on the outer wall of the drawer is lit, clearly indicating that "it is currently in the limit release process", avoiding the operator's misjudgment of the state;

[0095] Electric control telescopic rod 312 promotes the unlocking of moving piece 308: After the indicator light 305 is lit, the total controller which has an electrical connection relationship with the device receives an electrical signal, controls the electric control telescopic rod 312 on the extension plate 307 to extend, and drives the inclined block 313 to insert into the transverse slot 309 of the moving piece 308; The inclined surface of the inclined block 313 presses the inner wall of the transverse slot 309, pushing the moving piece 308 to move upward along the slot hole of the extension plate 307, at which time the spring C 311 is compressed;

[0096] Further, after the moving piece 308 moves upward, the long slot of the anti-misoperation slot 310 is separated from the long block of the buckle piece 306, and the "rotation restriction" of the rotating wheel 207 is completely released, which can be rotated synchronously with the shaft 206.

[0097] This step is the "second safety barrier unlocking", which ensures that the limit of the rotating wheel 207 is released only under compliant operation through the linkage of "mechanical + electrical control + indicator light", avoiding unintended rotation.

[0098] Step 3: Hand-shaking to advance, switching the drawer 1 station (transmission execution)

[0099] The operator rotates the handle clockwise / counterclockwise, and the torque of the handle is directly transmitted to the rotating wheel 207 through the shaft 206, which drives the rotating wheel 207 to rotate synchronously; During the rotation of the rotating wheel 207, the components in the second component will be transmitted in the following transmission path: the rotating wheel 207 transmission gear 208 drives the subsequent guide rail transmission components in the switch cabinet - drawer 1 moves smoothly along the guide rail;

[0100] Station switching: By controlling the number of rotations of the handle, the drawer 1 can be accurately switched to any target station (such as the connection station) of "draw out, isolate, experiment, and connect".

[0101] This step realizes the complete transmission of "power input torque transmission drawer 1 movement", and the "horizontal movement without rotation" design of the shaft 206 ensures that the torque transmission has no loss and improves the accuracy of station switching.

[0102] Step 4: Synchronous lubrication of the third assembly to avoid transmission jamming (auxiliary protection)

[0103] During the meshing and rotation of the teeth 205 and the transmission gear 208, the transmission gear 208 generates a radial extrusion force on the plug-in tooth 401; the plug-in tooth 401 compresses the spring D 404 under the action of the extrusion force and moves horizontally along the inner cavity of the teeth 205; when the plug-in tooth 401 moves, the inner wall of the annular groove 402 extrudes the cavity sleeve 403, and the cavity sleeve 403 further extrudes the cotton rod 405; after the cotton rod 405 is extruded, the adsorbed lubricating oil seeps out through the oil leakage hole 406 of the teeth 205 and directly drips on the meshing contact surface of the teeth 205 and the transmission gear 208, forming continuous lubrication.

[0104] This step is "automatic lubrication", which does not require additional lubricant. The lubrication is triggered by the "extrusion force" during the transmission process, solving the problem of "insufficient lubrication leading to jamming and wear" in the prior art.

[0105] Reset after work: locking mechanism, restoring the non-working safety state

[0106] When the drawer 1 reaches the target station, the operator stops rotating the handle and performs the reset operation:

[0107] Pull out the handle and reset the shaft 206: pull out the handle, and the shaft 206 is reset in the reverse direction along the limiting cavity 301 under the elastic force of the spring B 302 in the rotating wheel 207; the shaft 206 resets the electric contact piece A 303 and the electric contact piece B 304, the indicator light 305 is off, indicating that the "limiting process is completed"; the total controller receives the signal, controls the electric control telescopic rod 312 to retract, and the inclined block 313 exits the horizontal slot 309 of the moving piece 308;

[0108] Reset the moving piece 308 and lock the rotating wheel 207: the moving piece 308 is reset and moves downward under the action of the spring C 311, the long slot of the anti-misoperation groove 310 is re-engaged on the long block of the buckle piece 306, and the rotating wheel 207 is limited and cannot be rotated again, so as to avoid the position deviation of the drawer 1 caused by the idling of the shaft 206 in the non-working state;

[0109] Interlocking plate 202 resets, blocking the jack: the operator releases the interlocking plate 202, spring A 203 resets, pushing the interlocking plate 202 to block the jack of the hexagonal operating hole piece 204 again, preventing the ratchet from being inserted by mistake;

[0110] The third component lubrication resets: after the transmission gear 208 stops rotating, the extrusion force on the plug-in teeth 401 disappears, the plug-in teeth 401 reset under the action of spring D 404, the cotton strip 405 is no longer extruded, the lubrication stops, and the cotton strip 405 re-adsorbs lubricating oil for the next operation.

[0111] The mechanism solves the problems of "non-working state idling, insufficient lubrication, and risk of misoperation" of the prior art through the closed-loop process of "two safety unlocking (first component anti-misinsertion + second component anti-misrotation) → precise transmission switching station → automatic lubrication guarantee smoothness → reset locking return to safety", ensuring the safety, precision, and reliability of the switching station of the intelligent power grid switch cabinet.

[0112] The above working process is referred to the attached Figure 1 to the attached Figure 11 .

[0113] It should be noted that, in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a…" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0114] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A smart grid based interlocked type hand push mechanism for drawer switchgear, comprising: The utility model provides a drawer (1), its characterized in be further including: the axle rod (206) in first component, rotating wheel (207) and second component, The second component includes the limiting cavity (301) in the rotating wheel (207), the rotating wheel (207) is slidably sleeved on the axle rod (206) through the limiting cavity (301), the axle rod (206) end fixedly connected with spring B (302), the one end of spring B (302) away from the axle rod (206) is fixedly connected in the limiting cavity (301) inner wall, The axle rod (206) end center fixedly connected with electric contact piece A (303), the rotating wheel (207) inner wall fixedly connected with electric contact piece B (304), the drawer (1) outer wall is provided with indicator light (305), The rotating wheel (207) outer end center fixedly connected with buckle piece (306), the rotating wheel (207) one side is provided with the extension plate (307), the extension plate (307) is vertically slidably connected with the moving piece (308) through the slot hole, the moving piece (308) upper part is symmetrically provided with the transverse slot (309), the moving piece (308) middle part is provided with the anti-misoperation slot (310) through, The moving piece (308) upper part fixedly connected with spring C (311), the extension plate (307) is fixedly connected with electric control telescopic rod (312) on the symmetry, the electric control telescopic rod (312) output end fixedly connected with the oblique block (313), The first component still includes the auxiliary plate body (201) fixed in the drawer (1), the auxiliary plate body (201) outer side is slidably connected with the interlocking plate (202), the interlocking plate (202) side end fixedly connected with spring A (203), The axle rod (206) outer end fixedly connected with hexagonal operation hole spare (204), The extension plate (307) is fixedly connected on the auxiliary plate body (201), The ring outer periphery of hexagonal operation hole spare (204) equidistant fixedly connected with the tooth (205), the hexagonal operation hole spare (204) is drivenly connected with the transmission gear (208) through the tooth (205) engagement, Still include third component, the third component includes the plug tooth (401) in the tooth (205), the plug tooth (401) is provided with annular groove (402) in, The tooth (205) inner cavity fixedly connected with cavity sleeve (403), the one end of cavity sleeve (403) away from the fixed wall of tooth (205) is slid in annular groove (402).

2. The interlocked type hand-cranking propulsion mechanism for a drawer switchgear based on a smart grid according to claim 1, characterized in that: The tooth (205) inner wall fixedly connected with spring D (404), the one end of spring D (404) away from the fixed wall of tooth (205) is fixedly connected with plug tooth (401), The cavity sleeve (403) is sleeved on the outside of spring D (404), and the cotton strip (405) is placed in the inner cavity of the tooth (205) outside the cavity sleeve (403). The tooth (205) is symmetrically provided with the oil drain hole (406) through, 3. The interlocked type hand-cranking propulsion mechanism for a drawer switchgear based on a smart grid according to claim 1, characterized in that: The tooth (205) inner cavity is filled with lubricating oil.

4. The interlocked type hand-cranking propulsion mechanism for a drawer switchgear based on a smart grid according to claim 1, characterized in that: The axle rod (206) is composed of a column rod and a long strip plate.

5. The smart grid based drawer type switchgear with interlocked hand cranking mechanism as claimed in claim 1 wherein: The buckle piece (306) is composed of a round piece and a long strip piece, and the mistaken touch prevention groove (310) is composed of a round through groove and a long strip through groove.

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