Drawer switch cabinet anti-idling hand crank mechanism based on smart grid

Abstract

The application discloses a kind of anti-idling hand-cranking mechanisms for drawer switch cabinet based on smart grid, it is related to drawer switch cabinet anti-idling technical field, comprising: drawer, further comprising: second component;The second component includes transverse slot, and transverse slot is threadedly connected with screw element, and second component is flexibly moved in plug-in slot by engaging element, and the effective inner diameter of padlock hole can be adjusted in real time according to actual padlock size, and padlock of fixed size is no longer relied on;Whether it is small than the small size padlock of conventional fixed hole, or regular size padlock, can be realized stable plug-in by the position adaptation of engaging element, effectively solve the limitation of " only can be adapted to specific padlock " in prior art;The above design makes the operating handle of the same switch cabinet compatible with different specifications, different brands of padlock, without needing to match exclusive padlock for different switch cabinet separately, substantially improve the versatility of equipment in multi-specification switch cabinet maintenance scene, reduce the procurement and management cost of enterprise to padlock.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drawer switch cabinet anti-idling, in particular to a drawer switch cabinet anti-idling hand crank mechanism based on smart grid. BACKGROUND

[0002] To protect the safety of personnel during operation and maintenance, the drawer switch cabinet is usually equipped with safety protection devices, and the operation handle with safety locking function is a key component. When the drawer enters the cabinet, the operator operates the molded case circuit breaker through the handle to realize the on-off of the electrical connection. The safety locking operation handle is provided with a safety padlock hole, and after the padlock is locked, the handle rotation can be limited to prevent misoperation and ensure that the device is in the off state, thereby ensuring the safety of the operation.

[0003] However, in the prior art, the size of the padlock hole is fixed, and only a padlock of a specific size can be matched. In order to ensure that the rotating lever rotates to the required position and realizes effective work position locking, a padlock matching the size of the padlock hole must be used. This leads to the fact that it cannot be matched with a padlock smaller than the padlock hole, and there are obvious limitations in actual application. For example, when the operator performs maintenance work between switch cabinets of different specifications, the operator often uses a mismatched padlock due to confusion of the padlock specifications, which causes the padlock to be unable to completely limit the rotation of the rotating lever, and the rotating lever can still rotate in a small range in the padlock state, which violates the safety goal of preventing misoperation, and thus brings the risk of electric shock during maintenance. At the same time, in the prior art, the control of the operation force when twisting the rotating lever depends on the personal experience and feeling of the operator, and there is a lack of effective monitoring and feedback mechanism. The operation requires slow rotation to completely align the padlock hole before inserting the padlock, and it is prohibited to twist or rotate with force. If the padlock hole position is offset due to rotation jamming such as incomplete switching of the work position to the off state, forced twisting will cause damage to the connection structure of the rotating lever and the handle, such as deformation of the operating lever, and thus cause subsequent problems such as inability of the handle to rotate to transmit torque or damage to the padlock hole, which seriously affects the safety and reliability of the equipment.

[0004] Therefore, in view of the problems of insufficient padlock size adaptability and lack of effective monitoring and feedback of the twisting force in the prior art, an intelligent grid drawer switch cabinet anti-idling hand crank mechanism capable of adapting to different padlock sizes and effectively monitoring and feeding back the twisting force of the rotating lever during operation is needed to improve the operation safety and equipment reliability.

[0005] Therefore, the present application proposes an intelligent grid drawer switch cabinet anti-idling hand crank mechanism to solve the above problems. SUMMARY

[0006] Therefore, an intelligent grid drawer switch cabinet anti-idling hand crank mechanism is proposed to solve the problems in the prior art.

[0007] To achieve the above object, the application provides the following technical scheme: a drawer switch cabinet anti-idling hand crank mechanism based on a smart grid, comprising: a drawer, further comprising: a second component; the second component comprises a transverse slot, a screw element is threadedly connected in the transverse slot, a transverse sliding connection transverse column is connected in the transverse slot, a spring is arranged between the screw element and the transverse column, one end of the spring is fixedly connected with the screw element, and the other end is fixedly connected to the inner cavity wall of the screw element; a connecting plate is fixedly connected to the end of the transverse column away from the screw element, a clamping element is fixedly connected to the connecting plate, and the clamping element is symmetrically fixedly connected to the upper and lower end portions of the connecting plate; a limiting ring is arranged on one side of the clamping element, an insertion slot is formed through the limiting ring, and the clamping element is adapted to be inserted into the insertion slot.

[0008] As an improvement, it further comprises a first component; the first component comprises an operating handle shell fixedly connected to the outer surface of the drawer, a padlock hole A is symmetrically formed in the operating handle shell, a rotating lever is rotatably connected in the operating handle shell, and a padlock hole B is formed through the rotating lever; a torsional spring is arranged at the tail end of the rotating lever, the torsional spring is arranged in the operating handle shell, an auxiliary slot is formed in the front portion of the rotating lever, and a moving element is clamped in the auxiliary slot; the transverse slot is formed in the rotating lever, the limiting ring is embedded in the rotating lever, and the limiting ring and the padlock hole B are located on the same vertical line.

[0009] As an improvement, it further comprises a third component; the third component comprises an attached piece on one side of the rotating lever, a knob strip is fixedly connected to the outer surface of the attached piece, and a shaft rod is fixedly connected to the shaft center of the attached piece; a monitoring cavity is formed in the front end of the rotating lever, and the shaft rod is rotatably connected to the rotating lever.

[0010] As an improvement, a supporting plate is fixedly connected in the monitoring cavity, and a strain gauge is fixedly connected to the supporting plate; a tab is fixedly connected to the outer periphery of the circular ring of the shaft rod, and a pre-warning indicator lamp is arranged on the outer surface of the drawer.

[0011] As an improvement, it further comprises a fourth component; the fourth component comprises a liquid storage cavity, and the liquid storage cavity is formed by the inner side of the screw element and the left side of the transverse column; an injection slot is formed through the screw element, a ball is arranged in the injection slot, and a filling pipe is hung on the outer surface of the drawer.

[0012] As an improvement, the rotating lever is formed by splicing two splicing elements.

[0013] As an improvement, a threaded wire slot for screw element rotation is formed in the front end of the inner wall of the transverse slot, and the inner cavity of the end of the transverse column close to the screw element is in a hollow state.

[0014] As an improvement, the inner diameters of the liquid injection grooves are different, and are divided into a plugging area, a temporary transfer area and a normal liquid injection area, which are sequentially distributed from left to right and are interconnected, and the inner diameter of the temporary transfer area is larger than that of the plugging area and the normal liquid injection area; the outer diameter of the ball is smaller than the inner diameter of the temporary transfer area of the liquid injection groove.

[0015] Compared with the prior art, the application provides a anti-idling hand crank mechanism for a drawer switch cabinet based on a smart grid, which has the following advantages: 1. In the second component, the core design of "the clamping piece moving in the limiting ring insertion slot" can bring the following benefits: breaking the size limit of padlocks, improving the versatility of the equipment: this component can adjust the effective inner diameter of the padlock hole in real time according to the actual size of the padlock through the flexible movement of the clamping piece in the insertion slot, and no longer depends on fixed-size padlocks. Whether it is a small-size padlock smaller than the traditional fixed hole or a regular-size padlock, it can be stably inserted through the position adaptation of the clamping piece, effectively solving the limitation of "only adapting to specific padlocks" in the prior art; the above design makes the operating handle of the same switch cabinet compatible with padlocks of different specifications and different brands, without the need to match exclusive padlocks for different switch cabinets, greatly improving the versatility of the equipment in the maintenance scene of multi-specification switch cabinets, reducing the procurement and management cost of padlocks for enterprises; eliminating the hidden danger of padlock micro-motion, and strengthening the safety protection of maintenance: when the clamping piece moves in the insertion slot, it can tightly fit the surface of the padlock beam, eliminating the gap through the rigid contact of the clamping piece and the beam, avoiding the "loose lock" problem when the traditional fixed hole is matched with a small-size padlock. Even if the operator mistakenly takes a small-size padlock, the clamping piece can tightly clamp the beam through the limiting movement in the insertion slot, completely limiting the micro-motion space of the rotating lever, and eliminating the risk that the rotating lever can still rotate in a small range in the padlock state; the above design ensures that the handle is always stable in the open and off state after the padlock is locked, fundamentally avoiding accidents such as accidental closing and electric shock caused by micro-motion of the rotating lever during maintenance, and strengthening the safety protection level of personnel and equipment; simplifying the operation process and improving the maintenance efficiency: in the prior art, the operator needs to repeatedly confirm whether the padlock size and the padlock hole are matched, and if the sizes are not matched, the padlock needs to be replaced, which seriously affects the maintenance progress; the second component does not need to replace the padlock, and only needs to adjust the clamping piece in the insertion slot to complete the adaptation, the operation process does not need complex tools, and the insertion slot has a guiding effect on the movement of the clamping piece, the adjustment accuracy is easy to control, and the operation difficulty is greatly reduced. Especially in the scene of centralized maintenance of multiple switch cabinets of different specifications, the operator does not need to carry multiple sets of padlocks of different sizes, and does not need to spend time selecting the matching padlock, which significantly shortens the preparation time of the padlock lock, effectively adapts to the operation and maintenance requirements of the smart grid, improves the compatibility of the equipment, and improves the overall maintenance efficiency.

[0016] 2、The present application provides full support for padlock hole size adaptation by combining three adjustment modes of "screw propulsion", "oil injection and pushing", and "synergistic", relying on the synergistic effect of the fluid characteristics of lubricating oil and the mechanical structure, breaking through the limitations of traditional single adjustment mode in terms of scene adaptation, adjustment accuracy, operation flexibility, emergency reliability, and other dimensions, and has the following advantages: covering multiple operation and maintenance scenarios, improving design universality: the three adjustment modes can be flexibly selected according to the actual operation and maintenance scene conditions, completely solving the problem of "scene limitation" of traditional single adjustment mode. For example: when the operator carries basic tools such as an internal hexagonal wrench, the "screw propulsion" mode can be used to accurately control the amount of lubricating oil pushed by rotating the screw, adapting to scenes with high size precision requirements (such as fine adaptation of small size padlocks); when there is no tool or quick adjustment is needed, the "oil injection and pushing" mode can directly supplement lubricating oil through the injection groove, and use the increased oil to push the horizontal displacement column, meeting the "quick adjustment" needs of emergency repair, temporary padlock adaptation, etc.; when encountering extreme scenarios (such as insufficient lubricating oil in the storage cavity, large size deviation of the padlock), the "synergistic" mode can combine "screw pushing residual oil + injection groove supplementing new oil" to ensure that the engagement member can still move effectively, avoiding the interruption of adaptation caused by the failure of a single mode, allowing the design to cover multiple scenarios such as complete / missing tools, regular / emergency, standard / non-standard padlocks, and has much higher adaptation than a single adjustment structure; reduce the operation threshold and emergency risk, and improve operation efficiency: the design of the three adjustment modes fully considers the actual operation conditions of the operator, taking into account "professional operation" and "emergency operation", greatly reducing the use threshold and improving the fault handling capability. For experienced operation and maintenance personnel, the mechanical adjustment logic of the "screw propulsion" mode conforms to the traditional operation habit, and the precision is controllable; for beginners or temporary operation and maintenance personnel, the "oil injection and pushing" mode does not require complex tools and can be adjusted by simply injecting liquid, reducing adaptation errors caused by inexperience; when a certain adjustment mode fails temporarily (such as slight jamming of the screw / leakage of oil in the storage cavity), the "synergistic" mode can be used as a backup solution to avoid the dilemma of "unable to adapt to the padlock" caused by the failure of a single mode, reduce the interruption time during operation, and improve overall work efficiency; broaden the range of padlock size adaptation, improve design compatibility: the synergistic effect of the three adjustment modes can realize the combination of "small incremental adjustment" and "large span adjustment", covering a wider range of padlock sizes, far exceeding the adaptation ability of a single adjustment mode.For example, if the size of the padlock deviates slightly from the base size of the padlock hole, the "screw propulsion type" can achieve small-dose lubricating oil pushing by rotating the screw, drive the small-range movement of the clamping piece, and complete the precise fitting; if the size of the padlock deviates greatly, the "oil injection and pushing type" can increase the amount of oil in the liquid storage cavity by injecting a large amount of oil to drive the clamping piece to move greatly; if the deviation exceeds the upper limit of the adjustment of a single mode, the "cooperative type" can further expand the moving stroke of the clamping piece through the superposition of "screw pushing + oil injection supplement"; ultimately, the padlock size range can be adapted, the traditional fixed hole or single adjustment mode can be effectively widened, and whether it is an industry general padlock, a customized small-size padlock, or a slightly worn old padlock, stable clamping can be achieved, and the compatibility of the design for different sizes of padlocks can be improved.

[0017] 3、The present application can bring the following benefits by adopting oil transmission instead of traditional mechanical transmission: The three adjustment modes all replace the traditional mechanical structure "rigid friction transmission" with "oil transmission", which can not only reduce the wear of parts, but also achieve self-lubrication through oil, thereby prolonging the durability of the overall structure; that is, traditional mechanical adjustment is prone to wear due to metal hard contact, resulting in a decrease in adjustment accuracy after long-term use; in the present design, the lubricating oil can form an oil film on the contact surface of the horizontal moving piece, horizontal moving column and groove body while transmitting force, thereby reducing direct friction between metals and reducing the wear rate of core components such as clamping pieces and plug-in grooves; even the screw in the "screw propulsion type" can avoid dry friction of the screw pair through contact with lubricating oil, thereby prolonging the service life of the screw, ultimately reducing the frequency of maintenance and replacement due to component wear, and reducing long-term operation and maintenance costs of the equipment.

[0018] 4、The third component can bring the following benefits: real-time identification of dangerous operation, and elimination of safety accidents caused by forced twisting: the third component accurately captures the force signal of the attached pressing of the dial piece through the strain gauge on the support plate. When the rotating lever is not aligned (such as not switched to the open position) and the operator forces the lever to twist, the feedback value of the strain gauge under compression will significantly increase, triggering the warning light to light up immediately. The above-mentioned "excessive force - immediate warning" linkage mechanism can directly prevent the operator from continuing to apply external force: on the one hand, it avoids structural failure problems such as deformation of the operating lever, damage to the lock hole, and other problems caused by forced twisting, preventing subsequent "handle idling failure to transmit" faults; on the other hand, it eliminates the accidental closing caused by the sudden loosening of the rotating lever after being stuck due to structural damage, thereby avoiding the risk of electric shock caused by equipment malfunction during maintenance from the root cause, and strengthening the safety protection of personnel and electrical equipment; replacing subjective experience judgment, reducing the operation threshold and reducing misoperation: in the prior art, whether the rotating lever is stuck or can continue to be twisted completely depends on the personal feeling and experience of the operator, and beginners are prone to excessive force due to judgment errors, and experienced operators are also prone to misoperation due to fatigue or negligence. The third component converts "subjective feeling" into "objective signal" through the numerical feedback of the strain gauge and the visual reminder of the warning light; whether the operator has sufficient experience, the operator can determine whether the operation is safe by observing the state of the warning light; the above design greatly reduces the technical threshold of the operation, allowing operators of different experience levels to standardize operations and reduce equipment damage and safety hazards caused by subjective judgment bias.

[0019] Avoiding mechanical damage in advance, prolonging the service life of the equipment and reducing the operation and maintenance cost: forced twisting is the core reason for the damage of the rotating lever, the operating lever and the handle connection structure, and the traditional design can only discover the problem after the structure is actually deformed and the idling fault occurs. When repairing, the entire connection component needs to be replaced, which is costly and affects the operation and maintenance progress. The "early warning" design of the third component can trigger a reminder before the force reaches the structural damage threshold, avoiding the continuous application of external force to the vulnerable parts (such as the connection between the operating lever and the handle, and the limiting structure of the lock hole), and avoiding permanent deformation of the components due to overloading. This warning design can significantly reduce the replacement frequency of the operating lever, the lock hole and other core components, prolong the service life of the entire operating handle and the anti-idling mechanism, and reduce the parts procurement and maintenance cost of long-term operation and maintenance of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The main structure of the application is shown in the figure.

[0021] Figure 2 The operating handle shell, screw, and attached piece related structure of the application are shown in the figure.

[0022] Figure 3The first component is partially cut and the side view of the operating handle shell is shown.

[0023] Figure 4 The first component is partially cut and the side view of the operating handle shell is shown.

[0024] Figure 5 The first component is partially cut and the side view of the operating handle shell is shown.

[0025] Figure 6 The second component and the third component are shown in the position distribution diagram after the rotating lever is cut.

[0026] Figure 7 The second component is partially cut and the side view of the operating handle shell is shown.

[0027] Figure 8 The second component is partially cut and the side view of the operating handle shell is shown.

[0028] Figure 9 The first component is partially cut and the side view of the operating handle shell is shown.

[0029] Figure: 1, drawer.

[0030] First component: 201, operating handle shell; 202, padlock hole A; 203, rotating lever; 204, padlock hole B; 205, torsion spring; 206, auxiliary groove; 207, moving part.

[0031] Second component: 301, transverse groove; 302, screw part; 303, horizontal moving column; 304, spring; 305, connecting plate; 306, clamping part; 307, limiting ring; 308, plug-in groove.

[0032] Third component: 401, attached piece; 402, knob strip; 403, shaft; 404, monitoring cavity; 405, push piece; 406, supporting plate; 407, strain gauge; 408, early warning indicator.

[0033] Fourth component: 501, liquid storage cavity; 502, liquid injection groove; 503, ball; 504, filling pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0035] The present application will be further described in detail below according to the drawings and embodiments.

[0036] Embodiment: please refer to Figures 1 to 8 To solve the problems mentioned in the technical scheme, the embodiment of the application provides a drawer switch cabinet anti-idling hand crank mechanism based on a smart grid, which comprises a drawer 1, further comprising: a second assembly; the second assembly comprises a transverse groove 301, a screw member 302 is threadedly connected in the transverse groove 301, a transverse sliding column 303 is transversely and slidingly connected in the transverse groove 301, a spring 304 is arranged between the screw member 302 and the transverse sliding column 303, one end of the spring 304 is fixedly connected with the screw member 302, and the other end is fixedly connected to the inner cavity wall of the screw member 302; a connecting plate 305 is fixedly connected to the end of the transverse sliding column 303 away from the screw member 302, a clamping member 306 is fixedly connected to the connecting plate 305, and the clamping member 306 is symmetrically fixedly connected to the upper and lower end portions of the connecting plate 305; a limiting ring 307 is arranged on one side of the clamping member 306, a plug-in groove 308 is formed through the limiting ring 307, and the clamping member 306 is adapted to be plugged into the plug-in groove 308; further comprising a first assembly; the first assembly comprises an operating handle shell 201 fixedly connected to the outer surface of the drawer 1, a padlock hole A 202 is symmetrically formed in the operating handle shell 201, a rotating lever 203 is rotatably connected in the operating handle shell 201, and a padlock hole B 204 is formed through the rotating lever 203; a torsional spring 205 is arranged at the tail end of the rotating lever 203, the torsional spring 205 is arranged in the operating handle shell 201, an auxiliary groove 206 is formed in the front portion of the rotating lever 203, and a moving member 207 is clamped in the auxiliary groove 206; the transverse groove 301 is formed in the rotating lever 203, the limiting ring 307 is embedded in the rotating lever 203, and the limiting ring 307 and the padlock hole B 204 are located on the same vertical line

[0037] The first assembly is used for preparing before padlocking.

[0038] The rotating lever 203 is spliced by two splicing members; the splicing type operation facilitates subsequent maintenance work of the second assembly and the third assembly.

[0039] In the initial state, the padlock hole A 202 and the padlock hole B 204 do not coincide, and padlocking action can be performed only when the two coincide.

[0040] The torsional spring 205 is used for resetting the rotating lever 203.

[0041] The rotating rotating lever 203 can promote the moving member 207 to perform a downward movement through the auxiliary groove 206, so as to perform subsequent work such as opening.

[0042] The second assembly is used for adaptively regulating the actual padlocking size of the padlock hole.

[0043] A threaded groove for rotation of the screw member 302 is formed in the front end of the inner wall of the transverse groove 301.

[0044] The outer end of the spiral member 302 is provided with an insertion hole, which is used for the operator to insert a twisting member and rotate the spiral member 302.

[0045] The engaging member 306 is inserted into the insertion groove 308; moving the inserted engaging member 306 can gradually reduce the actual size of the limiting ring 307 during the pushing of the connecting plate 305 by the transverse column 303.

[0046] Further embodiments are shown in Figure 1 , Figure 5 , Figure 6 , Figure 9 The third assembly includes an attached sheet 401 on one side of the rotating rod 203, the outer surface of the attached sheet 401 is fixedly connected with a knob strip 402, and the shaft center of the attached sheet 401 is fixedly connected with a shaft rod 403; the front end of the rotating rod 203 is provided with a monitoring cavity 404, the shaft rod 403 is rotationally connected to the rotating rod 203, a supporting plate 406 is fixedly connected in the monitoring cavity 404, and a strain gauge 407 is fixedly connected to the supporting plate 406; a pull tab 405 is fixedly connected to the outer circumference of the shaft rod 403, and a pre-warning indicator light 408 is arranged on the outer surface of the drawer 1.

[0047] The third assembly is used to monitor the rotation degree of the rotating rod 203, so as to ensure that the rotating rod 203 is in a non-jamming and forced twisting state during rotation.

[0048] The strain gauge 407 and the pre-warning indicator light 408 are electrically connected through a device general controller; when the strain gauge 407 is pressed and the feedback value is large, i.e. when the rotating rod 203 is in a jamming and forced twisting state, the pre-warning indicator light 408 will perform a pre-warning work.

[0049] Further embodiments are shown in Figure 6 , Figure 7 The fourth assembly includes a liquid storage cavity 501, and the inner side of the spiral member 302 and the left side of the transverse column 303 form the liquid storage cavity 501; the spiral member 302 is provided with a liquid injection groove 502 in the inner cavity, the liquid injection groove 502 is provided with a ball 503, and the outer surface of the drawer 1 is hung with a filling pipe 504.

[0050] The fourth assembly is used to assist the adaptive regulation work of the second assembly; at the same time, when the padlock in the padlock hole is subjected to an external force, the external force transmitted by the padlock is buffered, the damage of the external force to the spiral member 302 is reduced, and the "wire slipping" phenomenon is avoided

[0051] The end of the transverse column 303 close to the spiral member 302 is in a hollow state, so as to cooperate with the liquid storage cavity 501 to increase the storage amount of lubricating oil.

[0052] The inner diameter of the liquid injection groove 502 is different, and is divided into a plugging area, a temporary transfer area and a normal liquid injection area, which are sequentially distributed from left to right and are in communication with each other, and the inner diameter of the temporary transfer area is greater than that of the plugging area and the normal liquid injection area. For reference, see the attached Figure 7 .

[0053] When the filling pipe 504 is inserted into the liquid injection groove 502, there are two states; one is to supplement the lubricating oil into the liquid storage cavity 501, at this time the oil will push the ball 503 in the liquid injection groove 502, and the ball 503 will move to the right into the temporary transfer area, at this time the oil can be smoothly filled into the liquid storage cavity 501, when not filling, the ball 503 will return to the initial plugging area in the backflow of the oil. For reference, see the attached Figure 7 ; the second is to lubricate other parts of the device, that is, to extract the lubricating oil, the filling pipe 504 inserted into the spiral member 302 will push the ball 503 to the temporary transfer area, and then the suction action can be performed through the filling pipe 504.

[0054] The outer diameter of the ball 503 is smaller than the inner diameter of the temporary transfer area of the liquid injection groove 502.

[0055] The working principle of all the contents in the above embodiment is as follows:

[0056] The working process of the anti-spin hand crank mechanism is carried out around "padlock preparation, size adaptation, force monitoring and locking protection", and can be divided into four core stages according to the operation logic, and the components cooperate to realize the anti-spin and safety protection functions.

[0057] I. Initial state and operation preparation stage: initial state confirmation: when the mechanism is not started, the first component on the outer surface of the drawer 1 is in the initial state, the padlock hole A 202 on the operation handle shell 201 does not coincide with the padlock hole B 204 of the internal rotating lever 203, and the padlock cannot be directly hung; the torsional spring 205 is in a natural state, preparing for the subsequent reset of the rotating lever 203; the warning indicator light 408 of the third component is not lit, and the strain sheet 407 has no extrusion signal.

[0058] Pre-starting check: the operator confirms the state of the switch cabinet, and checks whether the filling pipe 504 of the fourth component is hung in place, to ensure that there is sufficient lubricating oil in the liquid storage cavity 501.

[0059] Pre-starting check: the operator confirms the state of the switch cabinet, and checks whether the filling pipe 504 of the fourth component is hung in place, to ensure that there is sufficient lubricating oil in the liquid storage cavity 501.

[0060] II. Rotating the lever 203: The operator rotates the knob strip 402 of the first component, which drives the attached piece 401 and the shaft rod 403 of the shaft to rotate, and the shaft rod 403 in turn drives the rotating lever 203 to rotate in the operating handle shell 201. During the rotation process, the rotating lever 203 drives the moving part 207 to move down through the auxiliary groove 206, which assists in the subsequent locking of the open state.

[0061] Real-time force monitoring: When the rotating lever 203 rotates, the third component's dial 405 rotates synchronously with the shaft rod 403, continuously adhering to and pressing the strain gauge 407 on the supporting plate 406 in the monitoring cavity 404; the strain gauge 407 transmits the pressing force signal to the total controller. If the rotating lever 203 is stuck due to misalignment of the work position (such as not fully switching to the open state), the operator's forced twisting will cause the strain gauge 407 to suddenly increase the feedback value, at which point the warning indicator light 408 will light up immediately, reminding the operator to stop operating to avoid deformation of the operating lever or damage to the padlock hole.

[0062] Padlock hole alignment confirmation: The operator adjusts the force according to the state of the warning indicator light 408, slowly rotates the rotating lever 203 until the padlock hole A 202 and the padlock hole B 204 are completely overlapped, that is, they are on the same straight line, at which point the rotation is stopped and the rotating lever 203 is in the safe work position that can be padlocked.

[0063] III. Padlock size adaptation adjustment phase (this process is completed by the second component + fourth component): According to the size of the padlock to be hung, adjust the effective inner diameter of the padlock hole through three adjustment methods, the core relies on the structural action of the second component and the lubrication assistance of the fourth component: screw propulsion adjustment (precise adaptation): If the padlock size is slightly smaller than the padlock hole basic size, the operator inserts the twisting part into the insertion hole of the second component screw 302, then rotates the screw 302 in the horizontal groove 301 inner wall thread groove, with the rotation of the screw 302, it will compress the spring 304, at the same time push the lubricating oil in the storage cavity 501, the lubricating oil extrudes the horizontal displacement column 303 to slide in the horizontal groove 301; the horizontal displacement column 303 drives the connecting plate 305 to move, so that the clamping part 306 on the upper and lower ends of the connecting plate 305 is pushed into the insertion slot 308 of the limiting ring 307, thereby reducing the effective inner diameter of the padlock hole B 204, until the clamping part 306 fits the padlock beam.

[0064] Oil injection and extrusion adjustment (quick adaptation): If there is no twisting part or emergency adaptation is required, the operator removes the filling pipe 504 of the fourth component and inserts it into the liquid injection groove 502 of the screw 302; the filling pipe 504 pushes the ball 503 in the liquid injection groove 502 from the blocking area to the temporary transfer area, and then injects lubricating oil into the storage cavity 501; the increased amount of lubricating oil drives the horizontal displacement column 303 to move, thereby driving the clamping part 306 to adjust the size of the padlock hole B 204, and after adapting the padlock, pulling out the filling pipe 504, the ball 503 returns to the blocking area under the action of oil backflow, preventing lubricating oil leakage.

[0065] Cooperative regulation (large deviation adaptation): If the size of the padlock and the base size deviation is large, and at the same time, using "spiral propulsion + oil pushing": rotating the spiral part 302 to push the stored lubricating oil, and at the same time, supplementing new lubricating oil through the filling pipe 504, the double action expands the moving stroke of the horizontal moving column 303, so that the clamping part 306 is greatly advanced, until the padlock is completely adapted, and the gap between the lock beam and the padlock hole B204 is eliminated.

[0066] Four, padlock locking and resetting stage: padlock locking: after the size adaptation of the padlock is completed, the operator passes the padlock through the aligned padlock hole A202 and padlock hole B204, and completes the locking; At this time, the lubricating oil in the liquid storage cavity 501 of the fourth assembly can buffer the impact force of the padlock under external force, reduce the damage to the spiral part 302, and avoid the occurrence of "slip wire"; After operation, reset: after maintenance or operation, remove the padlock, rotate the lever 203 under the elastic force of the torsional spring 205, and automatically reset the padlock hole A202 and the padlock hole B204. If you need to use it again, repeat the above "alignment and adaptation locking" process.

[0067] The above working process please refer to Figures 1 to 9 .

[0068] It should be noted that in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is 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 "includes a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0069] 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 variations 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 hand-crank mechanism for preventing dry rotation in a drawer switchgear based on a smart grid, comprising: Drawer (1), characterized in that it further includes: a second component; The second component includes a transverse groove (301), a spiral component (302) is threadedly connected to the transverse groove (301), a transverse sliding column (303) is slidably connected to the transverse groove (301), and a spring (304) is provided between the spiral component (302) and the transverse sliding column (303). One end of the spring (304) is fixedly connected to the spiral component (302), and the other end is fixedly connected to the inner wall of the spiral component (302). A connecting plate (305) is fixedly connected to one end of the transverse column (303) away from the spiral component (302). A locking component (306) is fixedly connected to the connecting plate (305). The locking components (306) are symmetrically fixedly connected to the upper and lower ends of the connecting plate (305). A limiting ring (307) is provided on one side of the locking member (306), and a insertion groove (308) is provided through the limiting ring (307). The locking member (306) is adapted to be inserted into the insertion groove (308). It also includes the first component; The first component includes an operating handle housing (201) fixedly connected to the outer surface of the drawer (1). The operating handle housing (201) is symmetrically provided with padlock holes A (202). A rotating rod (203) is rotatably connected inside the operating handle housing (201). A padlock hole B (204) is provided through the rotating rod (203). The rotating lever (203) is provided with a torsion spring (205) at its tail end. The torsion spring (205) is installed in the operating handle housing (201). The rotating lever (203) is provided with an auxiliary groove (206) at its front end. A movable part (207) is locked in the auxiliary groove (206). The transverse groove (301) is opened in the rotating bar (203), the limiting ring (307) is embedded in the rotating bar (203), and the limiting ring (307) and the padlock hole B (204) are located on the same vertical line; It also includes a third component; The third component includes an attachment piece (401) on one side of the rotating bar (203), a knob strip (402) is fixedly connected to the outer surface of the attachment piece (401), and a shaft (403) is fixedly connected to the axis of the attachment piece (401). The front end of the rotating rod (203) is provided with a monitoring cavity (404), and the shaft (403) is rotatably connected to the rotating rod (203); It also includes a fourth component; The fourth component includes a liquid storage chamber (501), and the inner side of the spiral member (302) and the left side of the transverse column (303) restrict the formation of the liquid storage chamber (501). The spiral component (302) has a through-hole injection groove (502), and a ball (503) is provided in the injection groove (502). The drawer (1) has an injection tube (504) hanging on its outer surface.

2. The anti-dry-rotation hand-crank mechanism for a drawer switch cabinet based on a smart grid according to claim 1, characterized in that: A support plate (406) is fixedly connected inside the monitoring cavity (404), and a strain gauge (407) is fixedly connected on the support plate (406). A lever (405) is fixedly connected to the outer circumference of the ring on the shaft (403), and a warning indicator light (408) is provided on the outer surface of the drawer (1).

3. The anti-dry-rotation hand-crank mechanism for a drawer switch cabinet based on a smart grid according to claim 1, characterized in that: The rotating bar (203) is composed of two splicing pieces.

4. The anti-dry-rotation hand-crank mechanism for a drawer switch cabinet based on a smart grid according to claim 1, characterized in that: The inner wall of the transverse groove (301) has a threaded groove at the front end for the rotation of the spiral component (302), and the inner cavity of the transverse column (303) near the spiral component (302) is hollow.

5. The anti-dry-rotation hand-crank mechanism for a drawer switch cabinet based on a smart grid according to claim 1, characterized in that: The inner diameter of the injection tank (502) varies and is divided into a blocking area, a temporary transfer area and a normal injection area. The three are distributed from left to right and are interconnected. The inner diameter of the temporary transfer area is larger than that of the blocking area and the normal injection area. The outer diameter of the sphere (503) is smaller than that of the inner diameter of the temporary transfer area of ​​the injection tank (502).

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