High-stability automatic reclosing lock

Abstract

The utility model belongs to the technical field of circuit breakers, in particular to a high-stability automatic reclosing lock, which comprises an upper cover, a middle cover and a base, the middle cover is provided with a motor; the side, close to the upper cover, of the motor is rotationally connected with a column body; a cam is clamped on the column body; a connecting rod pin is arranged at the edge of the cam; the connecting rod pin is connected with one side of the connecting rod; a groove is formed in one side, far away from the connecting rod pin, of the connecting rod; the middle cover is provided with a limiting groove below the connecting rod; a handle is rotatably connected in the limiting groove; a state indicating piece is inserted into the handle; a microswitch is arranged on one side of the state indicating piece; the motor, the cam, the handle and the connecting rod adopt a coaxial rotating structure to start opening, closing and tripping states, so that the problems that the output stroke of a transmission mechanism is too large, so that the transmission mechanism cannot be well linked and tripped, and the linkage device does not return to a specified position after tripping, so that the situation that the linkage device cannot be closed is avoided, the structure is simple, and the stability of a product is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of circuit breaker technology, specifically belongs to a kind of high stability automatic reclosing. BACKGROUND

[0002] With the development of intelligent power grid in China, under the premise of requiring power grid safe operation, the realization control appliance intelligentization is more and more urgent, and small circuit breaker with automatic reclosing is developed greatly, and various transmission mechanisms and linkage devices emerge;Therefore, when the product development of reclosing device of small circuit breaker is carried out, one of the key technical points is to ensure that the transmission mechanism and operating mechanism cooperate, because the output stroke of transmission mechanism is too large, so that small circuit breaker cannot be well linked and tripped, and after tripping, due to the fact that linkage device does not return to specified position, there is the situation that it cannot be closed, so that small circuit breaker cannot be normally turned on and off, and the existing automatic reclosing generally uses gear linkage mechanism shaft to start opening and closing, and the stability is poor, and the phenomenon of jamming and unsmooth is prone to occur after long use. SUMMARY

[0003] The utility model aims at providing a kind of high stability automatic reclosing to solve the problems mentioned in the above background art.

[0004] The technical scheme of the utility model: a kind of high stability automatic reclosing, including upper cover, middle cover and base;The middle cover is equipped with motor;The motor is rotatably connected with column near upper cover side;Cam is clamped on the column;The edge of the cam is equipped with connecting rod pin;The connecting rod pin connects one side of connecting rod;The side of connecting rod away from the connecting rod pin is equipped with recess;The middle cover is located below the connecting rod and is equipped with limit slot;Handle is rotatably connected in the limit slot;State indicating piece is inserted on the handle;The side of state indicating piece is equipped with microswitch.

[0005] Preferably, the motor includes two positioning grooves, the upper cover is provided with clamping column corresponding to the two positioning grooves, and the positioning groove is clamped in the clamping column.

[0006] Preferably, the middle cover is provided with sliding groove on both sides of the handle;The state indicating piece is slidably connected in the sliding groove.

[0007] Preferably, the column is provided with cutout groove on both sides of the cam.

[0008] Preferably, the handle is connected with transmission assembly on one side of the middle cover.

[0009] Preferably, the transmission assembly is connected with copper piece on one side, and the transmission assembly is connected with the copper piece by elasticity.

[0010] Preferably, one side of the upper cover is provided with a display hole for observing the reclosing state; and the upper cover is provided with a stepped hole at the cam.

[0011] Preferably, the upper cover is provided with a storage groove away from one side of the middle cover; and a surface cover is clamped above the storage groove.

[0012] Preferably, the base is provided with a plurality of heat dissipation plates on two sides.

[0013] Preferably, the base is provided with beveled grooves on two sides in the length direction.

[0014] Compared with the prior art, the utility model provides a high stability automatic reclosing device, which has the beneficial effects that: the motor, the cam, the handle and the connecting rod adopt the coaxial rotating structure to start the opening and closing and the tripping state, avoids that the output stroke of the transmission mechanism is too large, so that the tripping cannot be well linked, and simultaneously avoids that the linkage device cannot return to the specified position after tripping, so that the device cannot be closed, the structure is simple, and the stability of the product is improved; the state indicating piece is additionally arranged to identify the state of the automatic reclosing device, and the practicability of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0016] Fig. 1 It is a perspective view of the utility model embodiment.

[0017] Fig. 2 It is a perspective view of the utility model embodiment without the upper cover.

[0018] Fig. 3 It is a sectional view of the utility model embodiment.

[0019] Fig. 4 It is a perspective view of the upper cover of the utility model embodiment.

[0020] REFERENCE NUMERALS

[0021] 1-upper cover;11-clamping column;111-cutout groove;12-display hole;13-stepped hole;14-storage groove;2-middle cover;21-motor;211-positioning groove;22-column;23-cam;231-connecting rod pin;24-connecting rod;241-groove;25-limiting groove;26-handle;27-state indicating piece;28-micro switch;29-sliding groove;3-base;31-heat dissipation plate;32-beveled groove;4-transmission assembly;41-copper piece;5-surface cover; DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments.

[0023] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application.

[0024] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] It should be noted that the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0027] As Figs. 1 to 4As shown, including the upper cover 1, middle cover 2 and base 3;The middle cover 2 is equipped with motor 21;The motor 21 is rotatably connected with the column body 22 near the upper cover 1 side;The cam 23 is clamped on the column body 22;The edge of the cam 23 is provided with a connecting rod pin 231;The connecting rod pin 231 connects one side of the connecting rod 24;The connecting rod 24 is provided with a recess 241 away from the connecting rod pin 231 side;The middle cover 2 is located below the connecting rod 24 and is provided with a limiting groove 25;The handle 26 is rotatably connected in the limiting groove 25;The state indicating element 27 is inserted into the handle 26;The side of the state indicating element 27 is provided with a micro switch 28;The motor 21 includes two positioning grooves 211, the upper cover 1 is provided with a clamping column 11 corresponding to the two positioning grooves 211, and the positioning groove 211 is clamped in the clamping column 11;The middle cover 2 is provided with a sliding groove 29 on both sides of the handle 26;The state indicating element 27 is slidably connected in the sliding groove 29, the motor 21, the cam 23, the handle 26 and the connecting rod 24 adopt coaxial rotating structure to start the closing and opening and the tripping state, avoid the output stroke of the transmission mechanism too large, so that it cannot be well linked to trip, and after tripping, the linkage device does not return to the specified position, the structure is simple, the stability of the product is improved;The state indicating element 27 is added to identify the state of the automatic reclosing, and the practicability of the product is improved;The column body 22 is provided with a cutout groove 111 on both sides of the cam 23, to prevent the column body 22 from slipping in the cam 23;The handle 26 is connected with a transmission assembly 4 on one side of the middle cover 2;The transmission assembly 4 is connected with a copper piece 41 on one side, and the transmission assembly 4 is elastically connected with the copper piece 41;The upper cover 1 is provided with a display hole 12 on one side, for observing the reclosing state;The upper cover 1 is provided with a stepped hole 13 at the cam 23;The upper cover 1 is provided with a storage groove 14 away from the middle cover 2;The storage groove 14 is clamped with a cover 5 above;The base 3 is provided with a plurality of heat dissipation plates 31 on both sides, to prevent the internal temperature from being too high;The base 3 is provided with an inclined slot 32 on both sides in the length direction, to prevent the base 3 from being installed reversely with the middle cover 2, and to play a foolproof role.

[0028] In the description of the present application, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside.For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A high stability automatic reclosing circuit breaker characterized by: Including upper cover, middle cover and base; The middle cover is equipped with motor; The motor is rotatably connected with the column near the upper cover side; The column is clamped with cam; The cam edge is equipped with connecting rod pin; The connecting rod pin connects the connecting rod side; The connecting rod is equipped with recess far from the connecting rod pin side; The middle cover is located below the connecting rod and is equipped with limit slot; The handle is rotatably connected in the limit slot; The handle is inserted with state indicating part; The state indicating part side is equipped with micro switch.

2. A high stability automatic reclosing circuit breaker as claimed in claim 1, wherein: The motor includes two positioning slots, the upper cover is equipped with clamping column corresponding to the two positioning slots, and the positioning slot clamps the clamping column.

3. The high-stability automatic reclosing circuit breaker as described in claim 1, characterized in that: The middle cover is located on both sides of the handle and is equipped with sliding slot; The state indicating part is slidably connected in the sliding slot.

4. The high-stability automatic reclosing circuit as described in claim 1, characterized in that: The column is located on both sides of the cam and is equipped with cutout slot.

5. The high-stability automatic reclosing circuit as described in claim 1, characterized in that: The handle is connected with transmission assembly on the side of the middle cover.

6. A high stability automatic reclosing circuit breaker as claimed in claim 5, wherein: The transmission assembly side is connected with copper piece, and the transmission assembly is elastically connected with the copper piece.

7. The high-stability automatic reclosing circuit as described in claim 1, characterized in that: The upper cover side is equipped with display hole for observing the coincidence brake state; The upper cover is located at the cam and is equipped with step hole.

8. The high-stability automatic reclosing circuit as described in claim 1, characterized in that: The upper cover side away from the middle cover is equipped with storage slot; The storage slot top is clamped with face cover.

9. The high-stability automatic reclosing circuit as described in claim 1, characterized in that: The base is equipped with multiple heat dissipation plates on both sides.

10. A high-stability automatic reclosing circuit as described in claim 1, characterized in that: The base is located on both sides of the length direction and is equipped with bevel slot.

Images