Interlocking mechanism angle-adjustable starting position adjustable assembly

Abstract

The utility model provides a kind of angle starting position adjustable type split and combination subassembly of interlocking mechanism, including first pivot, the first pivot is fixedly connected with limit elbow, the outside rotation of the first pivot is connected with second pivot, plunger screw is equipped on the limit elbow, the outer end of the second pivot is equipped with auxiliary switch of coupling by bolt, during the application of this technical solution, it faces different angle design of interlocking mechanism transmission part, without modification main body, by adjustable structure of limit elbow and first pivot, plunger screw compensates the movement angle of second pivot, different transmission angle demand can be adapted, the versatility in multiple interlocking mechanisms is improved;Second, indication accuracy is high, plunger screw can absorb the movement deviation of rotating shaft, limit elbow angle adjustable correction shielding deviation, correct transmission part machining and debugging error, avoid misindication, ensure in-place indication reliable, fill the existing indication structure adaptation limitation, precision is susceptible to error influence blank.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to an adjustable opening and closing component for a locking mechanism with a fixed angle starting position. Background Technology

[0002] Currently, in fields such as power systems, industrial control equipment, and rail transit, interlocking mechanisms are key components for ensuring the safe operation of equipment and preventing misoperation. Through mechanical transmission and electrical control, they achieve precise control over the operating status of equipment, ensuring that each operation strictly follows the preset procedures and avoiding equipment failures and safety accidents caused by violations. Among them, interlocking mechanisms with manual operation functions are usually equipped with a keyhole structure, allowing operators to insert keys for unlocking, mode switching, and other operations. As the core interface for manual operation, the smoothness and stability of the keyhole directly affect the normal operation of the interlocking mechanism.

[0003] However, existing interlocking mechanisms on the market generally have structural design flaws. They lack effective blocking structures at the keyhole. In practical applications, interlocking mechanisms are often located in complex environments such as outdoor power distribution cabinets and industrial workshops. These environments contain large amounts of dust, metal shavings, oil, and other debris. Due to the lack of blocking protection at the keyhole, such debris can easily enter the interlocking mechanism. Over time, the debris accumulates in the keyhole and inside the mechanism. On one hand, the debris adheres to the surfaces of key components such as the lock cylinder and transmission gears, accelerating wear between components, damaging lubrication, and significantly shortening the mechanical lifespan of the interlocking mechanism, increasing equipment maintenance costs and replacement frequency. On the other hand, when the debris accumulates to a certain extent, it can directly block the keyhole, preventing the key from being inserted normally or from turning smoothly after insertion. This causes the manual operation function of the entire interlocking mechanism to fail, making it impossible to complete critical operations such as unlocking and switching.

[0004] In fields such as power systems where equipment reliability is extremely critical, operational failures caused by blockages in interlocking mechanisms can prevent equipment from switching to a safe state in a timely manner or from unlocking properly during maintenance. This not only affects the efficiency of daily operation and maintenance but may also lead to serious consequences such as grid outages and equipment overloads due to operational delays. Furthermore, existing interlocking mechanisms lack effective means to address the problem of blockages. Once a blockage occurs, the entire mechanism often needs to be disassembled for cleaning, which is not only cumbersome but may also damage other components during disassembly, further amplifying the impact of the failure. Therefore, it is evident that the defects of existing interlocking mechanisms due to the lack of blocking structures in the lock holes have seriously affected their performance and safety reliability, failing to meet the requirements for stable operation of equipment in complex environments, and necessitating improved design. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes an adjustable starting position splitting and engaging component for an interlocking mechanism, which can more accurately solve the problems described above.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model proposes an adjustable splitting and engaging component for a fixed-angle starting position of an interlocking mechanism, including a first rotating shaft, a limit crank arm fixedly connected to the first rotating shaft, a second rotating shaft rotatably connected to the outer side of the first rotating shaft, a plunger screw on the limit crank arm, a connecting auxiliary switch bolted to the outer end of the second rotating shaft, a manual lever on one side of the mounting plate, a torsion spring at the bottom of the manual lever, a rack on one side of the manual lever, and the outer end of the torsion spring connected to the limit crank arm.

[0008] Furthermore, the limiting crank arm has an L-shaped overall side profile, and the limiting crank arm is made entirely of stainless steel.

[0009] Furthermore, an mounting plate is fitted onto the outer side of the first rotating shaft, and the mounting plate is rectangular in shape.

[0010] Furthermore, the internal cross-sectional shape of the auxiliary connection switch is rectangular, and both ends of the outer surface of the auxiliary connection switch are fixedly connected to linkage plates.

[0011] Furthermore, the mounting plate has fixing holes at all four corners, and the fixing holes are countersunk holes.

[0012] Furthermore, a base plate is fixedly installed at the bottom of the mounting plate, and fixing holes are also provided at the four corners of the base plate.

[0013] Furthermore, a mounting base is fixedly installed at the end of the first rotating shaft away from the second rotating shaft, and the mounting base is also provided with a rotating shaft mounting hole inside.

[0014] The beneficial effects of this utility model are:

[0015] 1. During the application of this technical solution, by setting up a double-layer fixed mounting plate and base plate, a highly adaptable mounting base, and a high-strength limiting crank arm and double rotating shaft cooperation structure, it is possible to achieve stable installation and precise transmission of components during use, and extend the service life of transmission components. At the same time, by using the design of occupying the lock hole after the key is closed and the limiting crank arm blocking the bolt, it reduces the intrusion of dust, metal shavings and other debris into the lock hole, thereby achieving the effect of improving the operational stability and reliability of the interlocking mechanism. It solves the problems of unstable installation and easy displacement of the interlocking mechanism, easy wear of transmission components, and lack of blocking structure in the lock hole, which makes it easy for debris to enter and cause blockage in the existing technology.

[0016] 2. During the application of this technical solution, the setting of a limit crank arm with a plunger screw and a double rotating shaft adjustment structure allows for flexible adjustment of the starting angle of the disassembly and engagement components during use, ensuring consistent manual operation stroke and avoiding incomplete operation. At the same time, relying on the detachable component connection method and key positioning indication design, the maintenance process is simplified, preventing potential hazards caused by incomplete operation. This achieves the effect of enhancing the adaptability, operational accuracy and maintenance convenience of the interlocking mechanism, solving the problems of existing interlocking mechanisms lacking angle adjustment function, making it difficult to adapt to multiple scenarios, requiring cumbersome overall disassembly and maintenance after failure, and lacking clear positioning indication, which can easily lead to safety accidents.

[0017] 3. During the application of this device, it can adapt to different transmission angle requirements without modifying the main body when facing different angle designs of the interlocking mechanism transmission part. Through the adjustable structure of the limit crank arm and the first rotating shaft, and the compensation of the second rotating shaft movement angle by the plunger screw, it can improve the versatility in multiple models of interlocking mechanisms. Secondly, it has high indication accuracy. It can absorb the rotation shaft movement deviation through the plunger screw, correct the obstruction offset through the adjustable angle of the limit crank arm, correct the processing and debugging errors of the transmission part, avoid false indication, ensure reliable positioning indication, and fill the gap of the existing indication structure's limited adaptability and the susceptibility of accuracy to errors. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention on the side away from the connecting auxiliary mechanism;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model near the connecting auxiliary mechanism;

[0021] Figure 4 This is a three-dimensional structural diagram of the connecting auxiliary mechanism of this utility model.

[0022] In the diagram: 1. First rotating shaft; 2. Limiting crank arm; 3. Second rotating shaft; 4. Piston screw; 5. Connecting auxiliary switch; 6. Mounting plate; 7. Linkage plate; 8. Fixing hole; 9. Base plate; 10. Mounting base; 11. Rotating shaft mounting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] An adjustable starting position splitting and engaging component for an interlocking mechanism includes a first rotating shaft 1, a limiting crank arm 2 fixedly connected to the first rotating shaft 1, and a second rotating shaft 3 rotatably connected to the outer side of the first rotating shaft 1. A plunger screw 4 is provided on the limiting crank arm 2. A connecting auxiliary switch 5 is bolted to the outer end of the second rotating shaft 3. During application, the device, by configuring the first rotating shaft 1, the limiting crank arm 2, the second rotating shaft 3, the plunger screw 4, and the connecting auxiliary switch 5, allows the first rotating shaft 1 to provide a fixed rotation reference for the limiting crank arm 2. After receiving external operating force, the limiting crank arm 2 rotates around the first rotating shaft 1. Simultaneously, the plunger screw 4 moves with the limiting crank arm 2, limiting and adjusting the movement angle of the second rotating shaft 3. The second rotating shaft 3 rotates outside the first rotating shaft 1, transmitting the rotational motion from the limiting crank arm 2 to the connecting auxiliary switch 5 at its outer end. The connecting auxiliary switch 5 is bolted to the second rotating shaft 3, and under the action of the second rotating shaft 3, the switch state is switched, thereby… To complete the opening and closing control of the interlocking mechanism, if it is necessary to adjust the fixed angle starting position of the opening and closing component, the relative fixed position of the limit crank arm 2 and the first rotating shaft 1 can be changed. Combined with the adjustment of the angle of the second rotating shaft 3 by the plunger screw 4, the starting position can be precisely adjusted. The beneficial effect is that, through the rotational cooperation of the first rotating shaft 1 and the second rotating shaft 3 and the angle adjustment function of the plunger screw 4, the problem of the difficulty in adjusting the starting position of the opening and closing component of the interlocking mechanism in the prior art is solved, ensuring the accurate and stable operation angle. With the cooperation of the limit crank arm 2 and the plunger screw 4, the loss of control of the component movement angle during the opening and closing process is avoided, improving the operational reliability. At the same time, the auxiliary switch 5 is connected to transmit the action through the second rotating shaft 3 to realize the state switching, ensuring the synchronization of the circuit control and mechanical opening and closing of the interlocking mechanism, reducing the failure caused by asynchronous action, and the cooperation of each component does not require a complex structure, reducing the maintenance difficulty and making up for the defects of inconvenient adjustment and insufficient reliability of related components in the prior art.

[0026] Combination Figures 1-4 As shown, the limit crank arm 2 has an L-shaped side profile and is made of stainless steel. An mounting plate 6 is fitted on the outer side of the first rotating shaft 1. The mounting plate 6 is rectangular in shape. The internal cross-section of the connecting auxiliary switch 5 is rectangular. Both ends of the outer surface of the connecting auxiliary switch 5 are fixedly connected to a linkage plate 7.

[0027] The technical solution described in the above-described embodiments of this application, during the application of this device, by setting up an L-shaped stainless steel limiting crank arm 2, a rectangular mounting plate 6, a connecting auxiliary switch 5 with a rectangular internal cross-section, and linkage plates 7 at both ends of the outer surface of the switch, ensures that the rectangular mounting plate 6 can provide a stable mounting foundation for the entire assembly during use, ensuring that each component maintains a stable relative position during operation. The stainless steel limit crank arm 2, thanks to its structural characteristics, can accurately receive external forces and convert them into rotational motion. The stainless steel material can withstand wear and external impacts during long-term operation, extending the service life of the component. The auxiliary connection switch 5, with a rectangular internal cross-section, can achieve stable switching when receiving action signals, avoiding switching jams caused by structural problems. The linkage plates 7 at both ends of its outer surface enhance the connection stability with adjacent components, ensuring that the switching action can be synchronously transmitted to other links of the interlocking mechanism. During overall operation, the stable support of the mounting plate 6 makes the rotation of the limit crank arm 2 more precise, and the reliable transmission of the limit crank arm 2 drives the efficient switching of the auxiliary connection switch 5. The linkage plate 7 further ensures the synchronicity of the switching action, thereby improving the stability and durability of the entire opening and closing assembly, reducing operational errors and malfunctions caused by component structural defects, and solving the operational problems caused by unstable installation, component damage, and poor action transmission in existing technologies.

[0028] Example 2

[0029] Combination Figures 2-4 As shown, fixing holes 8 are provided at all four corners of the mounting plate 6. The fixing holes 8 are countersunk holes. A bottom support plate 9 is fixedly installed at the bottom of the mounting plate 6. Fixing holes 8 are also provided at all four corners of the bottom support plate 9. A mounting base 10 is fixedly installed at the end of the first rotating shaft 1 away from the second rotating shaft 3. A rotating shaft mounting hole 11 is also provided inside the mounting base 10.

[0030] In the above-described embodiments of this application, during the application of this device, by setting a mounting plate 6 with countersunk fixing holes 8, a bottom support plate 9 with fixing holes 8 at the bottom, and a mounting base 10 with rotating shaft mounting holes 11, the countersunk holes at the four corners of the mounting plate 6 allow the fixing bolts to be fully embedded, avoiding bolt protrusion and interference with other components. Simultaneously, the fixing holes 8 securely install the component in the preset position of the interlocking mechanism. The bottom support plate 9 cooperates with the mounting plate 6, forming a double-layer fixing structure with the fixing holes 8 at its corners, further dispersing the force on the component during operation and preventing the mounting plate 6 from deforming due to uneven force. The mounting base 10 connects with the mounting plate 6 through the internal rotating shaft mounting holes 11. The interlocking mechanism adapts to other rotating shaft components, allowing the first rotating shaft 1 to smoothly integrate into the transmission system of the entire mechanism. This ensures that the movement of the components can be synchronously connected to the overall operation process of the interlocking mechanism. Throughout the process, the countersunk hole of the mounting plate 6 ensures spatial adaptability after installation, the base plate 9 enhances installation stability, and the mounting seat 10 achieves precise docking with external transmission components. The cooperation of these three components ensures that the components maintain a stable installation state and smooth transmission connection during operation, reducing problems such as component offset and movement jamming caused by unstable installation or poor transmission adaptation. This improves the reliability of the opening and closing components and makes up for the defects of easy loosening and poor adaptability of related installation structures in the prior art.

[0031] The working principle and advantages of this utility model are as follows: During application, the mounting plate 6 can be fixed in the preset position of the interlocking mechanism through the fixing holes 8 at the four corners, providing an installation reference for the entire splitting and joining assembly. The bottom support plate 9 fixed at the bottom of the mounting plate 6 also has fixing holes 8 at its corners, forming a double-layer fixing structure with the mounting plate 6. This greatly improves the stability of the assembly after installation, disperses the force generated during operation, and prevents the mounting plate 6 from deforming due to uneven force. The mounting seat 10 at one end of the first rotating shaft 1 has a rotating shaft mounting hole 11 inside, which can be connected to other rotating shaft components of the interlocking mechanism, allowing the first rotating shaft 1 to smoothly... The device is integrated into the transmission system of the entire mechanism. At this time, the first rotating shaft 1 plays a supporting role, the limiting crank arm 2 is fixed on the first rotating shaft 1, the plunger screw 4 is set on the limiting crank arm 2, the second rotating shaft 3 cooperates with the first rotating shaft 1, the connecting auxiliary switch 5 is installed on the outer end of the second rotating shaft 3, and the linkage plate 7 is fixed on both ends of the outer surface of the connecting auxiliary switch 5. All components are in the initial state, the locking bolt is not blocked, and the connecting auxiliary switch 5 maintains the initial on / off state. This installation structure allows the device to be stably integrated into the interlocking mechanism, avoiding component displacement due to unstable installation, reducing potential faults in subsequent operation, and improving the overall reliability of operation.

[0032] When manual operation is required, the operator inserts and turns the key, triggering the retraction of the bolt inside the interlocking mechanism. The manual lever then moves, revealing the manual operation port. At this point, the manual / electric switch can be switched, changing the interlocking mechanism to manual mode. After switching, the operator pushes the manual lever through the manual operation port. As the lever moves, it contacts the limit arm 2, causing it to rotate around the first rotating shaft 1. Since the limit arm 2 is fixed to the first rotating shaft 1, it also drives the second rotating shaft 3 to rotate. The rotation of the second rotating shaft 3 causes the connecting auxiliary switch 5 to rotate. The linkage plate 7 enhances the linkage stability between the connecting auxiliary switch 5 and external components, allowing the connecting auxiliary switch 5 to rotate... The trigger state switching realizes the on / off control of the interlocking mechanism circuit. After the limit crank arm 2 rotates, one end of its specific structure will move to the bolt position, blocking the bolt and keeping it in a retracted state. This prevents the bolt from accidentally popping out during manual operation and affecting the operation. In this process, the device achieves precise connection between manual operation and circuit control through the cooperation of the first rotating shaft 1 and the second rotating shaft 3, as well as the linkage between the limit crank arm 2, the manual lever, and the bolt. At the same time, the limit crank arm 2 is made of a specific material with high strength and wear resistance. It can withstand the force transmitted by the manual lever without being easily damaged, extending the service life of the components and solving the problem of easy wear and short life of transmission components in the existing interlocking mechanism.

[0033] If it is necessary to adjust the starting position of the engagement / disengagement component at a fixed angle, the fixing structure between the limiting crank arm 2 and the first rotating shaft 1 can be loosened, and the limiting crank arm 2 can be pushed to rotate around the first rotating shaft 1 until the required starting angle is reached, after which it can be fixed again. Due to the adaptation relationship between the first rotating shaft 1 and the second rotating shaft 3, the second rotating shaft 3 can rotate freely relative to the first rotating shaft 1 during the adjustment process, while the plunger screw 4 on the limiting crank arm 2 will contact the second rotating shaft 3, absorbing the movement angle of the second rotating shaft 3, ensuring that the linkage relationship between the second rotating shaft 3 and the connecting auxiliary switch 5 is not affected during the adjustment process, and ensuring the on / off control accuracy of the connecting auxiliary switch 5. This adjustable starting angle function allows this device to accurately set the starting angle of manual operation according to the actual operating requirements of the interlocking mechanism, ensuring that the action stroke of each manual operation is consistent, and avoiding incomplete operation due to starting angle deviation. Existing interlocking mechanisms often lack angle adjustment function and are difficult to adapt to the operating requirements of different scenarios. Therefore, this design of the device improves the adaptability and operating accuracy of the interlocking mechanism and reduces the risk of equipment failure caused by operating deviation.

[0034] After the manual operation mechanism completes the closing and is in place, the rack inside the interlocking mechanism moves. The rack moves to the limit arm 2 and blocks it, preventing the limit arm 2 from rotating in the opposite direction. This prevents the bolt, which is blocked by the limit arm 2, from extending. Because the bolt cannot extend, the key inserted by the operator cannot be reset and therefore cannot be pulled out of the lock hole. This clearly indicates to the operator that the closing is complete, preventing the equipment from becoming unstable due to incomplete operation. After completing the manual operation, the manual lever is pushed in the opposite direction. The manual lever drives the limit arm 2 to rotate in the opposite direction, releasing the bolt. The bolt extends under the action of the return spring inside the interlocking mechanism. At this time, the key can be pulled out. Simultaneously, the limit arm 2 drives the first rotating shaft 1 and the second rotating shaft 3 to rotate in the opposite direction, resetting the connecting auxiliary switch 5 to its initial state. The opening and closing components return to their initial positions, waiting for the next operation. The design that the key cannot be pulled out after the closing is complete provides convenience for the operator. The device provides intuitive prompts to ensure proper operation, preventing safety hazards caused by incomplete operation. The orderly reset of components during reverse operation ensures smooth subsequent operations. Furthermore, the key, once in position, occupies the lock hole, forming a natural barrier that reduces the probability of dust, metal fragments, and other debris entering the interlocking mechanism. Simultaneously, the limiting crank arm 2 blocks the gap between the bolt and the lock hole, further reducing the risk of debris intrusion. This directly addresses the problem of existing interlocking mechanisms lacking a barrier structure and being easily blocked by debris, improving the operational stability and safety of the interlocking mechanism. Moreover, the device's components are connected by a detachable structure. When a local component malfunctions, it is not necessary to disassemble the entire interlocking mechanism; only the corresponding component needs to be disassembled for repair or replacement. This simplifies the maintenance process and avoids the problems of existing interlocking mechanisms requiring complete disassembly after a failure, which can easily damage other components, thus reducing maintenance costs and the scope of the failure's impact.

[0035] During application, on the one hand, this indicating structure has a wide range of adaptability. It can accommodate various angle designs in the transmission parts of interlocking mechanisms, including differences in transmission angles between different specifications of the first rotating shaft 1 and the second rotating shaft 3, as well as the rotation angle requirements of the limiting crank arm 2 in different scenarios. No modification to the main body of the indicating structure is required. Through the adjustable fixing structure between the limiting crank arm 2 and the first rotating shaft 1, and the absorption and compensation of the movement angle of the second rotating shaft 3 by the plunger screw 4, it can adapt to the installation and operation requirements of different transmission angles. There is no need to redesign adaptable components due to changes in transmission angle, significantly improving its versatility in different models and specifications of interlocking mechanisms. On the other hand, this indicating structure can significantly increase the accuracy of the indication. In actual production and debugging, the transmission part inevitably experiences deviations from the theoretical value due to machining accuracy deviations or assembly errors during debugging, thus affecting the accuracy of the positioning indication. Machining accuracy deviations specifically manifest as gear pitch errors and shaft coaxiality deviations. The transmission part specifically includes the front gear transmission assembly and the worm gear transmission assembly. In this device, the plunger screw 4 can absorb the movement angle of the second rotating shaft 3 through slight adjustments. The adjustable angle design of the limit crank arm 2 can also specifically correct the offset of the blocking position caused by the transmission deviation, ensuring that the action of the bolt blocking and the key locking always accurately corresponds to the actual position of the mechanism. This avoids the problems of "false indication of being in position when the lock is not in position" or "no indication when the lock is in position" caused by the transmission deviation. It effectively corrects the errors caused by the differences in the processing and debugging of the transmission parts, ensures the reliability and accuracy of the position indication, and further fills the technical gap of the existing interlocking mechanism's limited adaptability of the indication structure and the indication accuracy being easily affected by the transmission error.

[0036] The scope of protection of this application does not involve improvements to the electronic components of the device or equipment. Therefore, the working principles of each electronic component are not described in detail here. The electronic components in this application are all conventional electronic components used in the prior art. They are all conventional technical means in the prior art, and the application of the prior art is very mature. Therefore, they will not be elaborated here.

[0037] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A fixed-angle starting position adjustable splitting and engaging component for an interlocking mechanism, characterized in that, It includes a first rotating shaft (1), which is fixedly connected to a limit crank arm (2). A second rotating shaft (3) is rotatably connected to the outside of the first rotating shaft (1). A plunger screw (4) is provided on the limit crank arm (2). A connecting auxiliary switch (5) is installed on the outer end of the second rotating shaft (3) by bolts.

2. The adjustable starting position splitting and engaging component of an interlocking mechanism according to claim 1, characterized in that, The limiting crank arm (2) has an overall L-shaped side profile and is made of stainless steel.

3. The adjustable starting position splitting and engaging component of an interlocking mechanism according to claim 1, characterized in that, An mounting plate (6) is fitted on the outer side of the first rotating shaft (1), and the mounting plate (6) is rectangular in shape.

4. The adjustable starting position splitting and engaging component of an interlocking mechanism according to claim 3, characterized in that, The internal cross-sectional shape of the auxiliary connection switch (5) is rectangular, and both ends of the outer surface of the auxiliary connection switch (5) are fixedly connected to a linkage plate (7).

5. The adjustable starting position splitting and engaging component of an interlocking mechanism according to claim 4, characterized in that, Fixing holes (8) are provided at all four corners of the mounting plate (6), and the fixing holes (8) are countersunk holes.

6. The adjustable starting position splitting and engaging component of an interlocking mechanism according to claim 5, characterized in that, The bottom of the mounting plate (6) is fixedly installed with a base plate (9), and fixing holes (8) are also provided at the four corners of the base plate (9).

7. The adjustable starting position splitting and engaging component of an interlocking mechanism according to claim 1, characterized in that, The first rotating shaft (1) is fixedly mounted with a mounting base (10) at the end away from the second rotating shaft (3), and the mounting base (10) is also provided with a rotating shaft mounting hole (11).

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