Miniature circuit breaker lock with lockset

Abstract

The utility model relates to a miniature circuit breaker lock with a lockset, which comprises a shell, a lock cylinder, a rotating block, a moving block and a hook piece, the lock cylinder, the rotating block, the moving block and the hook piece are arranged in the shell, the moving block is vertically arranged in the shell in a sliding mode, and the rotating block and the hook piece are arranged on the moving block and vertically move along with the moving block. The hook piece is provided with a fixed end located outside the shell, the fixed end has a fixed state for locking the circuit breaker and a separated state for separating from the circuit breaker, a limiting block is arranged in the shell, and the lock cylinder is in linkage with the rotating block. The rotating block has a locking state located on the relative sliding track of the limiting block and an unlocking state not located on the relative sliding track of the limiting block.

Description

Technical Field

[0001] The utility model relates to a miniature circuit breaker lock, in particular to a miniature circuit breaker lock with a built-in lock Background Art

[0002] Among the electrical equipment under the jurisdiction of petroleum refining enterprises and the power industry, enterprises pay more and more attention to safety production and often take various safety measures to prevent accidents. Inevitably, when performing maintenance operations on electrical equipment, attention should also be paid to and good safety electricity prevention and management should be carried out

[0003] When performing maintenance operations on electrical equipment, in order to ensure the safe progress of the maintenance operations, first, the power supply of the equipment to be maintained needs to be disconnected, and it is ensured that the equipment to be maintained will not be turned on artificially during the maintenance process

[0004] Therefore, it is necessary to isolate the switch in the off state and hang a warning label outside the switch. For example, Chinese Patent Application No.: CN201520320539.5; includes: a switch cover, a fixing fitting and a baffle; a positioning hole for the fixing fitting to pass through is opened on the switch cover, and the fixing fitting is used to pass through the positioning hole to fix the switch cover on the miniature circuit breaker body; the baffle is detachably arranged outside the above-mentioned fixing fitting for covering the fixing fitting; at least one switch cover lock installation part is arranged on the switch cover, and at least one baffle lock installation part matching the switch cover lock installation part is arranged on the above-mentioned baffle, and the baffle lock installation part and the switch cover lock installation part are fixed together by a padlock. However, the above patent needs to be used in combination with an additional padlock, with poor practicability and inconvenient use Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a miniature circuit breaker lock with a built-in lock

[0006] To achieve the above purpose, the utility model provides the following technical solutions: including a housing and a lock core, a rotating block, a moving block and a hook member arranged in the housing. The moving block is vertically slidably arranged in the housing. The rotating block and the hook member are arranged on the moving block and move vertically with the moving block. The hook member has a fixed end located outside the housing, and the fixed end has a fixed state of locking the circuit breaker and a separated state of separating from the circuit breaker. A limiting block is arranged in the housing. The lock core is linked with the rotating block. The rotating block has a locked state located on the relative sliding track of the limiting block and an unlocked state not located on the relative sliding track of the limiting block. The lock core can not only drive the rotating block to rotate, but also drive the rotating block to move vertically upward by pressing the lock core, thereby driving the moving block to move vertically upward

[0007] By adopting the above technical solution, in the unlocked state, the user first manually presses the movable block to move the hook downward, turning the hook into a fixed state, thereby locking the circuit breaker switch. Then, the user rotates the key to drive the lock cylinder to turn the rotating block into a locked state. At this time, the movable block cannot move and the hook cannot move, thereby achieving mechanical interlocking and completing the fixation of the circuit breaker switch. By integrating the lock cylinder and the circuit breaker lock into the same housing, the need for external locks is eliminated and the number of components is reduced. At the same time, the lock cylinder, rotating block, movable block and hook all move vertically, reducing the required volume of the entire circuit breaker lock.

[0008] The utility model is further configured as follows: the moving block has a rotating platform, a limiting notch is provided on the rotating platform for the limiting block to pass through, the rotating part has a matching groove and constitutes a rotating part rotatably arranged on the moving block, the rotating block has a rotating part and a limiting part, the rotating part is rotatably arranged on the rotating shaft, when the rotating block is in a locked state, the limiting part is opposite to the limiting notch, when the rotating block is in an unlocked state, the limiting part is opposite to the rotating platform, the user presses the lock core, and then pushes the moving block downward through the rotating block.

[0009] By adopting the above technical solution, the matching of the limiting notch and the limiting block ensures that the moving block can only slide freely in the unlocked state, and mechanical interference prevents movement in the locked state.

[0010] The utility model is further configured as follows: a clamping portion is further provided on the top of the moving block, and a clamping opening opposite to the clamping portion is provided on the rotating portion. When the rotating block is in a locked state, the clamping portion and the clamping opening cooperate to form a vertical linkage between the moving block and the rotating block.

[0011] By adopting the above technical solution, the locking structure makes the rotating block and the moving block rigidly connected in the vertical direction, avoiding the separation of components caused by vibration. In the locked state, it is more stable and the moving block cannot move alone.

[0012] The utility model is further configured as follows: a notch is provided on the top of the rotating part, a protruding block opposite to the notch is provided on the bottom of the lock core, and the protruding block and the notch constitute a linkage between the lock core and the rotating block.

[0013] By adopting the above technical solution, the direct engagement design of the protruding block and the notch reduces transmission loss.

[0014] The utility model is further configured as follows: the hook is in a "J" shape and has a closed state in which the openings are closed; the moving block has a U-shaped groove for the hook to be placed and to form a synchronous movement; both sides of the bottom of the shell are provided with tapered tracks for the hook to pass through, and the tapered tracks gradually approach the center in a vertical downward direction; when the hook is in a fixed state, the hook opening is open.

[0015] By adopting the above technical solution, when the tapered track guiding hook member moves downward, it automatically folds up, and the clamping force increases linearly with the displacement.

[0016] The present utility model is further configured as follows: a housing base is snap-fitted to the bottom of the housing, a tapered track is arranged on the housing base, and a fixed spring for driving the moving block to slide vertically is arranged between the housing base and the moving block.

[0017] By adopting the above technical solution, the fixed spring drives the moving block to move upward, so that the hook member can maintain a fixed state.

[0018] The present utility model is further configured as follows: the lock core is arranged to slide vertically in the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of the whole of the present utility model;

[0020] Figure 2 is an exploded view of the whole of the present utility model;

[0021] Figure 3 is a schematic structural view of the whole of the present utility model with the housing and the lock core omitted.

[0022] In the figure: 1, housing; 11, limiting block; 12, housing base; 13, tapered track; 2, lock core; 21, protruding block; 3, rotating block; 31, rotating part; 32, limiting part; 33, engaging opening; 34, notch; 4, moving block; 41, rotating platform; 42, limiting notch; 43, rotating shaft; 44, engaging part; 45, U-shaped groove; 5, hook member; 51, fixed end; 6, fixed spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0025] As Figures 1-3 shown, the present utility model discloses a micro circuit breaker lock with a built-in lock, which includes a housing 1 and a lock core 2, a rotating block 3, a moving block 4 and a hook member 5 arranged in the housing 1. The moving block 4 is vertically slidably arranged in the housing 1. The rotating block 3 and the hook member 5 are arranged on the moving block 4 and move vertically with the moving block 4. The hook member 5 has a fixed end 51 located outside the housing 1, and the fixed end 51 has a fixed state of locking the circuit breaker and a separated state of separating from the circuit breaker. A limiting block 11 is arranged in the housing 1. The lock core 2 drives the rotating block 3 to rotate. The rotating block 3 has a locked state located on the relative sliding track of the limiting block 11 and an unlocked state not located on the relative sliding track of the limiting block 11. The lock core 2 can not only drive the rotating block 3 to rotate, but also drive the rotating block 3 to move vertically upward by pressing the lock core 2, thereby driving the moving block 4 to move vertically upward. In the unlocked state, the user first manually presses the moving block 4 to move the hook member 5 downward, converting the hook member 5 into a fixed state, thereby locking the circuit breaker switch. Then, the user rotates the key to drive the lock core 2 to convert the rotating block into a locked state. At this time, the moving block 4 cannot move, and the hook member 5 cannot move, realizing mechanical interlocking and completing the fixation of the circuit breaker switch. By integrating the lock core 2 and the circuit breaker lock in the same housing 1, the need for an external hanging lock is eliminated, the number of components is reduced. At the same time, the lock core 2, the rotating block 3, the moving block 4 and the hook member 5 all move vertically, reducing the required use volume of the entire circuit breaker lock.

[0026] The moving block 4 has a rotating platform 41, and a limiting notch 42 for the limiting block 11 to pass through is arranged on the rotating platform 41. The rotating part 31 has a matching groove and is rotationally arranged on the moving block 4. The rotating block 3 has a rotating part 31 and a limiting part 32. The rotating part 31 is rotationally arranged on the rotating shaft 43. When the rotating block 3 is in the locked state, the limiting part 32 is opposite to the limiting notch 42. When the rotating block 3 is in the unlocked state, the limiting part 32 is opposite to the rotating platform 41. The user presses the lock core 2, and then pushes the moving block 4 downward through the rotating block 3. The matching of the limiting notch 42 and the limiting block 11 ensures that the moving block 4 can only freely slide in the unlocked state, and mechanical interference prevents movement in the locked state.

[0027] A clamping part 44 is further arranged at the top of the moving block 4, and a clamping port 33 opposite to the clamping part 44 is arranged on the rotating part 31. When the rotating block 3 is in the locked state, the clamping part 44 is matched with the clamping port 33 to form a vertical linkage between the moving block 4 and the rotating block 3. The clamping structure rigidly connects the rotating block 3 and the moving block 4 vertically, avoiding the separation of components caused by vibration, being more stable in the locked state, and preventing the moving block 4 from moving alone.

[0028] A notch 34 is provided at the top of the rotating part 31, and a protruding block 21 opposite to the notch 34 is provided at the bottom of the lock core 2. The protruding block 21 and the notch 34 form a linkage between the lock core 2 and the rotating block 3. The direct fitting design of the protruding block 21 and the notch 34 reduces transmission loss.

[0029] The hook member 5 is in a "J" shape and has a closed state with the openings converging. The moving block 4 has a U-shaped groove 45 for placing the hook member 5 and forming synchronous movement. On both sides of the bottom of the housing 1, there are provided tapered tracks 13 through which the hook member 5 passes, and the tapered tracks 13 gradually converge towards the center in the vertically downward direction. When the hook member 5 is in a fixed state, the opening of the hook member 5 is opened, and the tapered tracks 13 guide the hook member 5 to automatically converge when moving downward, and the clamping force increases linearly with displacement.

[0030] A housing base 12 is snap-fitted at the bottom of the housing 1. The tapered tracks 13 are provided on the housing base 12. A fixing spring 6 for driving the vertical sliding of the moving block 4 is provided between the housing base 12 and the moving block 4. The fixing spring 6 drives the moving block 4 to move upward, so that the hook member 5 can maintain a fixed state.

[0031] Working process: In the unlocked state, the user first manually presses the moving block 4 to compress the fixing spring 6, forcing the hook member 5 to move downward along the tapered track 13 at the bottom of the housing 1. At this time, the opening of the "J"-shaped hook member 5 converges, facilitating the alignment of the hook member 5 with the breaker switch terminal. After placing the terminal, release the pressing, and the fixing spring 6 pushes the moving block 4 to move upward and reset. The hook member 5 moves upward accordingly and the opening gradually expands along the sliding track, finally clamping the breaker terminal and the terminal to form an interference fit. Finally, the user rotates the key to drive the lock core 2, and the rotating block 3 rotates to the locked state through the cooperation of the protruding block 21 and the notch 34. At this time, the limiting portion 32 of the rotating block 3 is misaligned with the limiting notch 42 of the moving block 4, and the limiting block 11 blocks the downward movement of the moving block 4, realizing mechanical interlocking and completing the fixation of the breaker switch.

Claims

1. A miniature circuit breaker lock with a built-in lock, characterized in that: The invention comprises a housing (1) and a lock core (2), a rotating block (3), a moving block (4) and a hook (5) arranged in the housing (1); the moving block (4) is arranged in the housing (1) to slide vertically; the rotating block (3) and the hook (5) are arranged on the moving block (4) and move vertically with the moving block (4); the hook (5) has a fixed end (51) located outside the housing (1); and the fixed end (51) has a fixed state for locking the circuit breaker and a separated state for separating from the circuit breaker; a limit block (11) is arranged in the housing (1); the lock core (2) and the rotating block (3) are linked; the rotating block (3) has a locked state located on the relative sliding track of the limit block (11) and an unlocked state located not on the relative sliding track of the limit block (11).

2. A micro circuit breaker lock with a built-in lock according to claim 1, characterized in that: The movable block (4) has a limiting notch (42) for the limiting block (11) to pass through, and when the rotating block (3) is in a locked state, the rotating block (3) is opposite to the limiting notch (42).

3. A miniature circuit breaker lock with a built-in lock, as described in claim 2, characterized in that: The moving block (4) has a rotating platform (41), and a limiting notch is provided on the rotating platform (41). When the rotating block (3) is in an unlocked state, the rotating block (3) is opposite to the rotating platform (41).

4. A micro circuit breaker lock with a built-in lock according to claim 2, characterized in that: The rotating block (3) comprises a rotating portion (31) and a limiting portion (32), wherein the limiting portion (32) is arranged below the rotating portion (31). When the rotating block (3) is in a locked state, the limiting portion (32) is opposite to the limiting notch (42).

5. A micro circuit breaker lock with a built-in lock according to claim 4, characterized in that: The top of the moving block (4) is provided with a rotating shaft (43), and the rotating portion (31) has a matching groove and constitutes the rotating portion (31) to be rotatably provided on the moving block (4).

6. A micro circuit breaker lock with a built-in lock according to claim 1, characterized in that: The top of the movable block (4) is further provided with a snap-fit portion (44), and the inner side of the rotating block (3) is provided with a snap-fit opening (33) opposite to the snap-fit portion (44). When the rotating block (3) is in a locked state, the snap-fit portion (44) cooperates with the snap-fit opening (33) to form a vertical linkage between the movable block (4) and the rotating block (3).

7. A micro circuit breaker lock with a built-in lock according to claim 4, characterized in that: The top of the rotating portion (31) is provided with a notch (34), and the bottom of the lock core (2) is provided with a protruding block (21) opposite to the notch (34). The protruding block (21) and the notch (34) form a linkage between the lock core (2) and the rotating block (3).

8. A micro circuit breaker lock with a built-in lock according to claim 1, characterized in that: The hook (5) is in a "J" shape and has a closed state in which the openings are closed. The moving block (4) has a U-shaped groove (45) for the hook (5) to be placed and to form a synchronous movement. Both sides of the bottom of the shell (1) are provided with a tapered track (13) for the hook (5) to pass through, and the tapered track (13) gradually moves toward the center in a vertical downward direction. When the hook (5) is in a fixed state, the opening of the hook (5) is open.

9. A micro circuit breaker lock with a built-in lock according to claim 8, characterized in that: The bottom of the shell (1) is engaged with a shell seat (12), a gradually shrinking track (13) is arranged on the shell seat (12), and a fixed spring (6) for driving the moving block (4) to slide vertically is arranged between the shell seat (12) and the moving block (4).

10. A micro circuit breaker lock with a built-in lock according to claim 1, characterized in that: The lock core is arranged on the housing in a vertically sliding manner.

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