Mechanical program lock linkage mechanism for preventing misoperation

Abstract

The utility model discloses a kind of anti-misoperation mechanical program lock linkage mechanism, it is related to anti-misoperation mechanical lock technical field, including lock box, the rear end both sides of lock box are symmetrically fixed with mounting plate, the surface of mounting plate is equipped with multiple sets of mounting hole, the inside of lock box is equipped with limiting mechanism, the front end of lock box is fixed with lock cover, the front end one side of lock cover is fixed with lock plate one, the front end other side of lock cover is fixed with lock plate two. The utility model is through the limiting portion set on right tooth plate, left tooth plate and the linkage cooperation between the limiting slot of gear one and gear two set, to this can complete the unlocking and locking connection between lock body one, lock body two, and through the specified operation sequence, avoid operating personnel to carry out wrong operation due to unfamiliar operation process, to protect the safe operation of equipment, reduce the accident caused by misoperation.

Description

Technical Field

[0001] This utility model relates to the field of anti-misoperation mechanical program lock technology, specifically to an anti-misoperation mechanical program lock linkage mechanism. Background Technology

[0002] Mechanical program locks are safety devices used in high-voltage electrical equipment, primarily to prevent misoperation and ensure the safe operation of the power system.

[0003] Mechanical program locks prevent accidents caused by misoperation by forcing operators to operate according to predetermined safety procedures and meet the "five prevention" requirements, namely, preventing the opening and closing of isolating switches under load, preventing accidental entry into energized compartments, preventing grounding wires from being connected to energized circuits, preventing the closing of grounding switches while energized, and preventing the closing of circuit breakers with ground wires connected.

[0004] Existing mechanical program locks are widely used in power plants, substations, and power distribution rooms of industrial enterprises. However, existing mechanical program locks cannot be used to prevent the misoperation of electrical equipment, thus failing to ensure the safe operation of the power system. Utility Model Content

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A mechanical program lock linkage mechanism for preventing misoperation includes a lock box, mounting plates are symmetrically fixed on both rear sides of the lock box, the surface of the mounting plates is provided with multiple sets of mounting holes, a limiting mechanism is provided inside the lock box, a lock cover is fixedly provided at the front end of the lock box, a lock plate one is fixedly provided on one front side of the lock cover, and a lock plate two is fixedly provided on the other front side of the lock cover.

[0006] Preferably, the limiting mechanism includes two sets of crossbars, both sets of crossbars are symmetrically fixedly connected to the inner walls of both sides of the lock box, a movable seat is slidably installed on the outside of the crossbars, a right toothed plate is fixedly provided on one side of the right end of the movable seat, a left toothed plate is fixedly provided on one side of the left end of the movable seat, the top of the right toothed plate and the left toothed plate are integrally formed with a limiting part, a lock body is rotatably installed in the middle of the lock plate one, a lock body two is rotatably installed in the middle of the lock plate two, a gear one and a gear two are rotatably installed in the middle of the inside of the lock box, a half toothed plate one is fixedly provided on one side of the gear one, a half toothed plate two is fixedly provided on the other side of the gear one and a side of the gear two respectively, a limiting groove is opened on the other side of the gear one and one side of the gear two, and an electronic sensing module is fixedly provided on one side of the upper inner wall of the lock box.

[0007] Preferably, the right toothed plate and the left toothed plate are distributed in opposite directions, and both the right toothed plate and the left toothed plate are arranged in an "L" shape.

[0008] Preferably, the limiting grooves provided on gear one and gear two respectively match the limiting parts integrally formed on the right gear plate and the left gear plate, and are movably installed.

[0009] Preferably, the bottom ends of lock body one and lock body two pass through the lock box and are fixedly connected to the upper ends of gear one and gear two respectively, and the exterior of lock body one and lock body two are rotatably connected to the upper end of the lock box.

[0010] Preferably, both the first and second semi-tooth plates are semi-circular and mesh with one end of the right and left tooth plates, respectively.

[0011] Preferably, the electronic sensing module is equipped with a set of electrically connected electronic probes, which can be fixedly installed on one end of the lock cover for detecting the operator. The electronic sensing module is installed inside the lock box for recording the operation time.

[0012] Preferably, the lock cylinders in lock body one and lock body two are respectively movably connected to key one and key two.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This utility model provides a linkage mechanism for an anti-misoperation mechanical program lock. Through a limiting mechanism, when key one and lock body one are in the unlocked state, inserting key one into the lock cylinder of lock body one and rotating lock body one counterclockwise causes lock body one to be driven by gear one to move a half-tooth plate. This half-tooth plate engages with one end of the right tooth plate, pushing the right tooth plate upwards on the crossbar. This causes the limiting part at the top of the right tooth plate to separate from the limiting groove in gear two on lock body one, thus completing the locking process. The locking relationship of lock body two is released, and key two can be inserted into the lock cylinder inside lock body two. By rotating key two clockwise, lock body two can use gear two to drive half tooth plate two to move. Half tooth plate two can drive the meshing left tooth plate to move upward on the left crossbar, so that the limiting part set at the top of the left tooth plate can be directly inserted into the limiting groove opened on gear one in lock body one. In this way, lock body one can be locked. Then key two can be pulled out, which helps to prevent misoperation during power outages and ensures the safety of personnel and equipment.

[0014] This utility model provides a mechanical program lock linkage mechanism to prevent misoperation. The limiting parts set on the right and left gear plates enable linkage between the limiting grooves opened on gear one and gear two, thereby completing the locking and unlocking connection between lock body one and lock body two. By using the prescribed operation sequence, it avoids operators from making incorrect operations due to unfamiliarity with the operation process, thereby protecting the safe operation of the equipment and reducing accidents caused by misoperation. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the anti-misoperation mechanical program lock linkage mechanism of this utility model; Figure 2 This is a front view of the anti-misoperation mechanical program lock linkage mechanism of this utility model. Figure 3 This is a schematic diagram of the limiting mechanism of this utility model; Figure 4 This is a structural schematic diagram of the cross-sectional view of the lock box of this utility model.

[0016] In the diagram: 1. Lock box; 2. Mounting plate; 3. Mounting hole; 4. Limiting mechanism; 5. Lock cover; 6. Lock plate one; 7. Key one; 8. Lock plate two; 9. Key two; 41. Crossbar; 42. Moving base; 43. Right gear plate; 44. Left gear plate; 45. Limiting part; 46. Lock body one; 47. Lock body two; 48. Gear one; 49. Gear two; 410. Half gear plate one; 411. Half gear plate two; 412. Limiting groove; 413. Electronic sensing module. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to embodiments: like Figures 1-4 As shown, this utility model provides a mechanical program lock linkage mechanism to prevent misoperation, including a lock box 1. Mounting plates 2 are symmetrically fixed on both sides of the rear end of the lock box 1. Multiple sets of mounting holes 3 are opened on the surface of the mounting plates 2. A limiting mechanism 4 is provided inside the lock box 1. A lock cover 5 is fixedly provided at the front end of the lock box 1. A lock plate 6 is fixedly provided on one side of the front end of the lock cover 5, and a lock plate 8 is fixedly provided on the other side of the front end of the lock cover 5.

[0018] The lock cylinders in lock body 1 (46) and lock body 2 (47) are respectively movably connected to key 1 (7) and key 2 (9).

[0019] In this scheme, by following the prescribed operating sequence, the corresponding key is inserted into the lock cylinder of the first lock body, and turning the key unlocks the lock body. At this time, the limiting tooth plate connected to the lock body will move, triggering the unlocking condition of the next lock body. The operator then uses the key to open the next lock body, and so on, until all the lock bodies corresponding to the devices that need to be operated are opened.

[0020] like Figures 3-4As shown, the limiting mechanism 4 includes two sets of crossbars 41. The two sets of crossbars 41 are symmetrically fixedly connected to the inner walls of both sides of the lock box 1. A movable seat 42 is slidably installed on the outside of the crossbars 41. A right toothed plate 43 is fixedly provided on one side of the right movable seat 42, and a left toothed plate 44 is fixedly provided on one side of the left movable seat 42. The top of the right toothed plate 43 and the left toothed plate 44 are integrally formed with a limiting part 45. A lock body 46 is rotatably installed in the middle of the lock plate 1 6, and a lock body 47 is rotatably installed in the middle of the lock plate 2 8. Gear 1 48 and gear 2 49 are rotatably installed in the middle of the lock box 1. A half toothed plate 410 is fixedly provided on one side of gear 1 48, and a half toothed plate 2 411 is fixedly provided on the other side of gear 2 49. Limiting grooves 412 are respectively opened on the other side of gear 1 48 and one side of gear 2 49. An electronic sensing module 413 is fixedly provided on one side of the upper inner wall of the lock box 1.

[0021] The right toothed plate 43 and the left toothed plate 44 are distributed oppositely, and both the right toothed plate 43 and the left toothed plate 44 are arranged in an "L" shape.

[0022] The limiting grooves 412 provided on gear 1 48 and gear 2 49 respectively match the limiting parts 45 integrally formed on the right gear plate 43 and the left gear plate 44, and are movably installed.

[0023] The bottom ends of lock body 1 46 and lock body 2 47 pass through lock box 1 and are fixedly connected to the upper ends of gear 1 48 and gear 2 49 respectively, and the exterior of lock body 1 46 and lock body 2 47 are rotatably connected to the upper end of lock box 1.

[0024] Both the first half-tooth plate 410 and the second half-tooth plate 411 are semi-circular and mesh with one end of the right tooth plate 43 and the left tooth plate 44, respectively.

[0025] The electronic sensing module 413 is equipped with a set of electrically connected electronic probes, which can be fixedly installed on one end of the lock cover 5 for detecting operators. The electronic sensing module 413 is installed inside the lock box 1 for recording operation time.

[0026] In this solution, the movable seat 42 provides stable support and guidance for the movement of the toothed plate, ensuring that the toothed plate will not deviate during the movement and guaranteeing the accuracy of the cooperation of each component. Furthermore, the electronic sensing module 413 can record information such as the time and operator of each operation, which is convenient for subsequent query and traceability, helps to analyze whether the operation process is compliant, and can quickly locate the responsibility when problems occur.

[0027] The working principle of this anti-misoperation mechanical program lock linkage mechanism will be explained in detail below.

[0028] like Figures 1-4As shown, in use, when the key 7 and lock body 46 are in the initial unlocked state, the operator precisely inserts the key 7 into the lock cylinder inside the lock body 46 and rotates it counterclockwise. The lock body 46 is tightly connected to the gear 48. During the rotation, the gear 48 drives the connected half-tooth plate 410 to move synchronously. At the same time, because the teeth of the half-tooth plate 410 engage with the teeth at one end of the right tooth plate 43, the right tooth plate 43 receives an upward thrust as the half-tooth plate 410 rotates, and begins to slide upward along the crossbar 41. The limiting part 45 set at the top of the right tooth plate 43, which was originally firmly stuck in the limiting groove 412 opened by the gear 49 on the lock body 47, gradually disengages from the limiting groove 412 as the right tooth plate 43 moves upward. This process means that the locking relationship of the lock body 47 has been successfully released. While the locking relationship of lock body 2 47 is released, the operator inserts key 2 9 into the lock cylinder inside lock body 2 47 and rotates key 2 9 clockwise. Lock body 2 47 then drives gear 2 49 to move, which in turn drives half-tooth plate 2 411 to move. Half-tooth plate 2 411 meshes with left tooth plate 44. Driven by half-tooth plate 2 411, left tooth plate 44 moves upward along the left crossbar 41. The limiting part 45 at the top of left tooth plate 44 is precisely aligned with the limiting groove 412 on gear 1 48 in lock body 1 46. As left tooth plate 44 moves upward, limiting part 45 is steadily inserted into limiting groove 412, firmly locking lock body 1 46. At this point, the state of the lock body changes. Lock body 2 47 can be operated, while lock body 1 46 is locked and cannot be operated erroneously. After completing this series of operations, key 2 9 is removed, and the entire system enters a safe and controllable operating state.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A mechanical program lock linkage mechanism for preventing misoperation, comprising a lock box (1), wherein mounting plates (2) are symmetrically fixed on both sides of the rear end of the lock box (1), characterized in that: The mounting plate (2) has multiple sets of mounting holes (3) on its surface. The lock box (1) is equipped with a limiting mechanism (4). The front end of the lock box (1) is fixedly provided with a lock cover (5). One side of the front end of the lock cover (5) is fixedly provided with a lock plate one (6), and the other side of the front end of the lock cover (5) is fixedly provided with a lock plate two (8).

2. The anti-misoperation mechanical program lock linkage mechanism according to claim 1, characterized in that: The limiting mechanism (4) includes two sets of crossbars (41). The two sets of crossbars (41) are symmetrically fixed to the inner walls of both sides of the lock box (1). A movable seat (42) is slidably installed on the outside of the crossbars (41). A right toothed plate (43) is fixedly provided on one side of the right end of the movable seat (42), and a left toothed plate (44) is fixedly provided on one side of the left end of the movable seat (42). The top ends of the right toothed plate (43) and the left toothed plate (44) are integrally formed with a limiting part (45). A lock body (46) is rotatably installed in the middle of the lock plate (6). Lock body 2 (47) is rotatably installed in the middle of the lock plate 2 (8). Gear 1 (48) and gear 2 (49) are rotatably installed in the middle of the lock box (1). Half tooth plate 1 (410) is fixedly provided on one side of gear 1 (48), and half tooth plate 2 (411) is fixedly provided on the other side of gear 2 (49). Limiting grooves (412) are respectively opened on the other side of gear 1 (48) and one side of gear 2 (49). Electronic sensing module (413) is fixedly provided on one side of the upper inner wall of the lock box (1).

3. The anti-misoperation mechanical program lock linkage mechanism according to claim 2, characterized in that: The right toothed plate (43) and the left toothed plate (44) are distributed oppositely, and both the right toothed plate (43) and the left toothed plate (44) are arranged in an "L" shape.

4. The anti-misoperation mechanical program lock linkage mechanism according to claim 2, characterized in that: The limiting grooves (412) provided on the first gear (48) and the second gear (49) respectively match the limiting parts (45) integrally formed on the right gear plate (43) and the left gear plate (44), and are movably installed.

5. The anti-misoperation mechanical program lock linkage mechanism according to claim 2, characterized in that: The bottom ends of lock body one (46) and lock body two (47) pass through lock box (1) and are fixedly connected to the upper ends of gear one (48) and gear two (49) respectively, and the outside of lock body one (46) and lock body two (47) are rotatably connected to the upper end of lock box (1).

6. The anti-misoperation mechanical program lock linkage mechanism according to claim 2, characterized in that: The first half-tooth plate (410) and the second half-tooth plate (411) are both semi-circular and mesh with one end of the right tooth plate (43) and the left tooth plate (44), respectively.

7. The anti-misoperation mechanical program lock linkage mechanism according to claim 2, characterized in that: The electronic sensing module (413) is equipped with a set of electrically connected electronic probes, which can be fixedly installed on one end of the lock cover (5) for detecting the operator. The electronic sensing module (413) is installed inside the lock box (1) for recording the operation time.

8. The anti-misoperation mechanical program lock linkage mechanism according to claim 2, characterized in that: The lock cylinders in lock body one (46) and lock body two (47) are respectively movably connected to key one (7) and key two (9).

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