Anti-misoperation protection device of vacuum circuit breaker

Abstract

The utility model discloses an anti-misoperation protection device of a vacuum circuit breaker, which comprises a mounting plate and a rotating plate, a first arc-shaped plate and a second arc-shaped plate are welded at the top of the mounting plate, and a gap is reserved between the first arc-shaped plate and the second arc-shaped plate. A plurality of grooves are formed in the side, close to the second arc-shaped plate, of the first arc-shaped plate, the rotating plate is rotationally fixed to the interior of the mounting plate through a rotating shaft, and a connecting base is welded to the top of the rotating plate; a connecting seat is mounted at the end of a mounting plate, a moving plate is slidably connected with the connecting seat through a guide block, a plurality of clamping grooves are formed in the outer side wall of a first arc-shaped plate, when rotating to the corresponding clamping groove, the moving plate can be clamped in the clamping groove, and a rotating plate rotates to be communicated with a corresponding conductive column, so that communication of different vacuum circuit breakers is realized, and the working efficiency of the vacuum circuit breakers is improved. And the movable column can be prevented from being separated from the conductive column, so that the possibility of misoperation caused by looseness is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment technical field, concretely is a kind of anti-misoperation protection device of vacuum circuit breaker. BACKGROUND

[0002] Vacuum circuit breaker refers to the switch device that can close, carry and break the current under normal circuit condition and can close, carry and break the current under abnormal circuit condition within specified time.The closing and opening action of vacuum circuit breaker is realized by operating mechanism, and the closing and opening operation of vacuum circuit breaker is realized by operating mechanism and main shaft on vacuum circuit breaker.With the development of high-voltage electrical apparatus and high-voltage alternating current vacuum circuit breaker, people's safety requirements for power distribution products are higher and higher, and high-voltage alternating current vacuum circuit breaker cannot be shaken into chassis car due to human error, which may cause casualties.

[0003] Such as patent publication No. 202421048967.2, a kind of anti-misoperation locking device of vacuum circuit breaker, including: locking piece, including rotationally installed on the shaft of support, and vertically fixed on the lock rod of shaft, lock rod has with the handle of circuit breaker body, to prevent its rotation the locking state of resistance, the intermediate state of moving along the shaft axial direction, and the unlocking state of rotating relative to the intermediate state, and handle is separated;Support, fixed on the body of circuit breaker, support is formed with the first trajectory groove of the lock rod along the shaft axial direction, and the second trajectory groove of the first trajectory groove bending communication, for lock rod rotation.The lock rod is in the unlocking state when it is in the second trajectory groove;When need to lock, lock rod rotates a certain angle along the second trajectory groove, then moves along the first trajectory groove, to switch to the locking state of cooperation with the handle resistance, to prevent handle misoperation, improve safety and reliability.

[0004] In the prior art described above, when the control operating rod is used, due to the lack of structure for limiting the operating rod, looseness may occur during use, which affects the safety of circuit use. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art, and provides an anti-misoperation protection device for vacuum circuit breaker.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A false operation protection device of vacuum circuit breaker, including mounting panel and rotating plate, the top of mounting panel is welded with first arc plate and second arc plate, there is gap between first arc plate with second arc plate, and first arc plate is close to the side of second arc plate and is provided with a plurality of recesses, rotating plate is rotatably fixed with the inside of mounting panel through rotating shaft, the top of rotating plate is welded with connecting seat, the top of connecting seat is installed with moving plate, the bottom of mounting panel is welded with connecting plate, the outer side wall of connecting plate is fixed with a plurality of electrically-conductive columns of equiangular distribution through bolt, the bottom end of rotating plate is penetrated with moving column, the side of moving column close to connecting plate is inlaid with rolling ball.

[0007] Further description of the above technical scheme:

[0008] The outside of moving plate is sleeved with moving sleeve, the moving sleeve is slidably connected with moving plate, the outer side wall of moving sleeve is welded with snap ring, and the moving sleeve can be located in the recess.

[0009] Further description of the above technical scheme:

[0010] The side of connecting plate close to moving column is provided with a plurality of clamping grooves of equiangular distribution, the position of clamping groove is opposite to that of electrically-conductive column, the surface of connecting plate is provided with arc-shaped groove, and the arc-shaped groove penetrates a plurality of clamping grooves.

[0011] Further description of the above technical scheme:

[0012] A plurality of reinforcing rods are distributed between first arc plate and mounting panel, and the two ends of reinforcing rod are welded with first arc plate and mounting panel respectively.

[0013] Further description of the above technical scheme:

[0014] The outside of moving column is sleeved with spring, the two ends of spring are in contact with rotating plate and moving column respectively, the outer side wall of rotating plate is fixed with limiting rod through bolt, and the end of limiting rod can be in contact with moving column.

[0015] Further description of the above technical scheme:

[0016] The bottom of moving plate is fixed with guide block through bolt, the top of connecting seat is provided with guide groove, and guide block is located in guide groove and slides.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the setting of the anti-misoperation protection device for vacuum circuit breakers has a reasonable structural design. By installing a connecting seat at the end of the mounting plate, the moving plate is slidably connected to the connecting seat through a guide block. Multiple slots are opened on the outer side wall of the first arc plate. When the moving plate rotates to the corresponding slot, it can be locked in the slot, and the rotating plate rotates to connect with the corresponding conductive post, realizing the connection of different vacuum circuit breakers. It can also prevent the moving post from separating from the conductive post, so as to prevent the possibility of misoperation due to loosening.

[0018] By installing a connecting plate at the bottom of the mounting plate, when the moving plate and the rotating plate rotate, the moving column can be controlled to engage with the corresponding slot in the connecting plate, and separation of the moving column from the slot can be avoided, thereby effectively improving the stability of the contact between the moving column and the slot, and thus improving the stability of the circuit. Attached Figure Description

[0019] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall main structure of the anti-misoperation protection device for a vacuum circuit breaker proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the moving column connection structure of the anti-misoperation protection device for a vacuum circuit breaker proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the moving plate connection structure of the anti-misoperation protection device for a vacuum circuit breaker proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the unfolded structure of a protection device for preventing misoperation of a vacuum circuit breaker proposed in this utility model;

[0024] In the diagram: 1. Mounting plate; 11. First arc-shaped plate; 111. Reinforcing rod; 12. Second arc-shaped plate; 2. Rotating plate; 21. Limiting rod; 3. Connecting seat; 4. Moving plate; 41. Moving sleeve; 411. Snap ring; 42. Guide block; 5. Connecting plate; 51. Conductive post; 52. Snap groove; 53. Arc groove; 6. Moving post; 61. Rolling ball; 62. Spring. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-4 A protective device for preventing misoperation of a vacuum circuit breaker includes a mounting plate 1 and a rotating plate 2. A first arc-shaped plate 11 and a second arc-shaped plate 12 are welded to the top of the mounting plate 1, with a gap between the first arc-shaped plate 11 and the second arc-shaped plate 12. The first arc-shaped plate 11 has multiple grooves on the side near the second arc-shaped plate 12. The rotating plate 2 is rotated and fixed to the interior of the mounting plate 1 by a rotating shaft. A connecting seat 3 is welded to the top of the rotating plate 2, and a movable plate 4 is installed on the top of the connecting seat 3. A connecting plate 5 is welded to the bottom of the mounting plate 1. Multiple conductive posts 51 distributed at equal angles are fixed to the outer wall of the connecting plate 5 by bolts. A movable post 6 passes through the bottom end of the rotating plate 2, and a ball bearing 61 is embedded on the side of the movable post 6 near the connecting plate 5.

[0027] Mounting plate 1 provides mounting points for multiple parts. The cooperation of the first arc plate 11 and the second arc plate 12 restricts the rotation direction of the moving plate 4, allowing it to rotate only at the midpoint between the first arc plate 11 and the second arc plate 12. The moving plate 4 is fixed in position by cooperating with the groove. Connecting seat 3 connects the moving plate 4 to the rotating plate 2, enabling the moving plate 4 to rotate synchronously with the rotating plate 2 when rotating. This allows the moving post 6 at the end of the rotating plate 2 to communicate with the corresponding conductive post 51. When the rotating plate 2 rotates, the ball 61 contacts the connecting plate 5, stretching the spring 62. When the ball 61 moves to the next slot 52, it automatically locks into the slot 52.

[0028] The movable plate 4 is covered with a movable sleeve 41, which is slidably connected to the movable plate 4. A retaining ring 411 is welded to the outer wall of the movable sleeve 41, and the movable sleeve 41 can be located in the groove. The cooperation between the movable sleeve 41 and the retaining ring 411 allows the movable sleeve 41 to move into the groove when the movable plate 4 is stuck in the groove. At this time, the retaining ring 411 is located between the first arc plate 11 and the second arc plate 12, which can prevent the movable plate 4 from moving out of the groove.

[0029] The connecting plate 5 has multiple equally angled slots 52 on the side near the moving post 6. The slots 52 are positioned relative to the conductive post 51. The surface of the connecting plate 5 has an arc-shaped groove 53 that runs through multiple slots 52. The use of the arc-shaped groove 53 allows the ball 61 to slide stably along the surface of the connecting plate 5 and move to the next slot 52.

[0030] Multiple reinforcing rods 111 are distributed between the first arc-shaped plate 11 and the mounting plate 1. The two ends of the reinforcing rods 111 are welded to the first arc-shaped plate 11 and the mounting plate 1, respectively. The use of reinforcing rods 111 can improve the strength of the first arc-shaped plate 11, so that the first arc-shaped plate 11 can stably control the rotation state of the moving plate 4.

[0031] A spring 62 is fitted around the outside of the movable column 6. The two ends of the spring 62 are in contact with the rotating plate 2 and the movable column 6, respectively. A limit rod 21 is fixed to the outer wall of the rotating plate 2 by bolts. The limit rod 21 can contact the end of the movable column 6. When the ball 61 rolls along the arc groove 53, the spring 62 is in a stretched state, and the end of the movable column 6 is in contact with the limit rod 21. The limit rod 21 can control the movement trajectory of the connecting plate 5 and prevent the movable column 6 from separating from the rotating plate 2.

[0032] The bottom of the movable plate 4 is fixed with a guide block 42 by bolts, and the top of the connecting seat 3 has a guide groove. The guide block 42 is located in the guide groove and slides. By using the guide block 42 to slide on the top of the connecting seat 3, the rotating plate 2, the connecting seat 3 and the movable plate 4 can be connected as one unit, and the movable plate 4 can slide with the connecting seat 3 to facilitate the control of the movable plate 4 to enter the groove or be placed in the gap between the first arc plate 11 and the second arc plate 12.

[0033] Working principle: When it is necessary to adjust the circuit of the vacuum circuit breaker, manually rotate the end of the moving plate 4 so that the moving plate 4 rotates at the gap between the first arc plate 11 and the second arc plate 12. At this time, the connecting seat 3 can drive the rotating plate 2 to rotate synchronously, so that the ball 61 rolls in the arc groove 53. When it rotates to the desired target position, the spring 62 returns to its original length and pushes the moving column 6 to move inside the rotating plate 2, so that the ball 61 is locked into the slot 52 to complete the connection of the circuit. Manually move the moving plate 4 so that the moving plate 4 enters the groove, and then move the moving sleeve 41 down along the outer wall of the moving plate 4 and place it in the groove. The retaining ring 411 is located in the middle of the first arc plate 11 and the second arc plate 12, thus completing the fixation of the moving plate 4 and preventing loosening and misoperation.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A protection device for preventing misoperation of a vacuum circuit breaker, characterized in that: The assembly includes a mounting plate (1) and a rotating plate (2). The top of the mounting plate (1) is welded with a first arc plate (11) and a second arc plate (12). There is a gap between the first arc plate (11) and the second arc plate (12). The first arc plate (11) has multiple grooves on the side near the second arc plate (12). The rotating plate (2) is fixed to the interior of the mounting plate (1) by rotating shaft. The top of the rotating plate (2) is welded with a connecting seat (3). The top of the connecting seat (3) is equipped with a movable plate (4). The bottom of the mounting plate (1) is welded with a connecting plate (5). The outer wall of the connecting plate (5) is fixed with multiple conductive posts (51) distributed at equal angles by bolts. The bottom end of the rotating plate (2) is penetrated by a movable post (6). The side of the movable post (6) near the connecting plate (5) is inlaid with a ball (61).

2. The anti-misoperation protection device for a vacuum circuit breaker according to claim 1, characterized in that: The movable plate (4) is covered with a movable sleeve (41), which is slidably connected to the movable plate (4). A retaining ring (411) is welded to the outer wall of the movable sleeve (41), and the movable sleeve (41) can be located in the groove.

3. The anti-misoperation protection device for a vacuum circuit breaker according to claim 1, characterized in that: The connecting plate (5) has multiple slots (52) distributed at equal angles on the side near the moving column (6). The slots (52) are positioned relative to the conductive column (51). The surface of the connecting plate (5) has an arc-shaped groove (53) that passes through multiple slots (52).

4. The anti-misoperation protection device for a vacuum circuit breaker according to claim 1, characterized in that: Multiple reinforcing rods (111) are distributed between the first arc-shaped plate (11) and the mounting plate (1), and the two ends of the reinforcing rods (111) are welded to the first arc-shaped plate (11) and the mounting plate (1) respectively.

5. The anti-misoperation protection device for a vacuum circuit breaker according to claim 1, characterized in that: The movable column (6) is fitted with a spring (62), and the two ends of the spring (62) are in contact with the rotating plate (2) and the movable column (6) respectively. The outer side wall of the rotating plate (2) is fixed with a limit rod (21) by bolts, and the limit rod (21) can contact the end of the movable column (6).

6. The anti-misoperation protection device for a vacuum circuit breaker according to claim 1, characterized in that: The bottom of the movable plate (4) is fixed with a guide block (42) by bolts, and the top of the connecting seat (3) has a guide groove. The guide block (42) is located in the guide groove and slides.

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