CN214012877U - Quick automatic closing mechanism of molded case circuit breaker and molded case circuit breaker with same - Google Patents
Quick automatic closing mechanism of molded case circuit breaker and molded case circuit breaker with same Download PDFInfo
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- CN214012877U CN214012877U CN202120130041.8U CN202120130041U CN214012877U CN 214012877 U CN214012877 U CN 214012877U CN 202120130041 U CN202120130041 U CN 202120130041U CN 214012877 U CN214012877 U CN 214012877U
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Abstract
The utility model relates to the technical field of power electronics, and discloses a quick and automatic closing mechanism of a molded case circuit breaker and a molded case circuit breaker provided with the same, which comprises a direct current motor, wherein the direct current motor is fixed on the circuit breaker, a fixed plate is arranged above the direct current motor, and the output end of the direct current motor is connected with a reduction gearbox; the gear is fixed at the output end of the reduction gearbox; one end of the single rack is rotatably connected to a lever bracket of a main mechanism of the circuit breaker along the radial direction of the gear, and a tooth opening of the single rack is meshed with the gear; and the hand-pulling mechanism is fixed on the single rack, and the single rack can be separated from the gear by pulling the single rack to one side. Compared with the prior art, the utility model discloses a setting up the single rack that rotates the connection and the meshing of gear rotates, realizes the circuit breaker from the separation and reunion, reliably realizes detaining again-the quick combined floodgate of combined floodgate operation, can have electronic, manual two kinds of operations concurrently, need not stop direct current motor when manual operation, raises the efficiency.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to quick automatic combined floodgate mechanism of moulded case circuit breaker and install moulded case circuit breaker of this mechanism.
Background
The traditional opening and closing actions of the molded case circuit breaker need manual operation, and due to the development of a smart power grid, various assembled molded case circuit breakers appear in the market, and most of the assembled molded case circuit breakers are in linkage fit with a handle.
If chinese patent CN207149496U discloses an energy storage electric operating device for moulded case circuit breaker, it installs drive mechanism in the top of moulded case circuit breaker, cover whole moulded case circuit breaker's handle, thereby utilize drive mechanism to drive the handle operation, realize automatic switch-over, however this kind of mounting means leads to whole moulded case circuit breaker highly to increase, and it does not possess the possibility of manual operation, when needs carry out manual operation, need special instrument to dismantle drive mechanism or can not realize manual operation completely, reclosing mechanism will connect on the handle promptly, including reclosing mechanism need cover the handle, and make the circuit breaker can not directly pass through handle control, influence the convenience of manual control circuit breaker.
In consideration of manual and automatic switching, chinese patent CN 201811631779.1 discloses an intelligent molded case circuit breaker, which discloses that a handle is exposed to the outside, and manual and automatic switching is realized through a manual rotating piece.
A transmission mechanism on the traditional circuit breaker realizes reclosing-closing operation by using an alternating current motor, and the rotating speed of the alternating current motor is not high, so that rapid closing cannot be realized. And the self-clutch of the circuit breaker cannot be realized. Patent document CN110047713A discloses a reclosing transmission mechanism and a molded case circuit breaker, which have a complex structure and complex installation, and the reclosing-closing operation is realized by forward transmission and reverse rotation of a motor.
Chinese patent CN111105963A discloses a fast closing mechanism, which utilizes an internal double rack and an incomplete gear to realize the self-clutching of a circuit breaker, and reliably realizes the re-latching-closing operation, and the mechanism can be operated both electrically and manually, and uses a dc motor to increase the rotation speed, so as to realize the fast closing of the circuit breaker. However, the internal double-tooth rack is immovable, when the reclosing-closing operation is realized through manual operation, an external tool is needed to rotate an incomplete gear to realize self-clutching, and the manual operation is inconvenient and laborious; and when manual operation is used for realizing self-clutch, the direct current motor needs to be stopped for operation, and the operation is very inconvenient.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to the problem that exists among the prior art, the utility model provides a quick automatic combined floodgate mechanism of moulded case circuit breaker and install moulded case circuit breaker of this mechanism rotates through the meshing that sets up the single rack that rotates the connection and the gear, realizes the circuit breaker self-separation and reunion, reliably realizes detaining again-the quick combined floodgate of combined floodgate operation, can have electronic, manual two kinds of operations concurrently, need not stop direct current motor when manual operation, raises the efficiency.
The technical scheme is as follows: the utility model provides a quick automatic combined floodgate mechanism of moulded case circuit breaker uses based on moulded case circuit breaker, a serial communication port, include:
the direct current motor is fixed on the circuit breaker, a fixing plate is arranged above the direct current motor, and the output end of the direct current motor is connected with the reduction gearbox;
the gear is fixed at the output end of the reduction gearbox;
one end of the single rack is rotatably connected to a lever bracket of a main mechanism of the circuit breaker along the radial direction of the gear, and a tooth opening of the single rack is meshed with the gear;
and the hand-pulling mechanism is fixed on the single rack, and the single rack can be separated from the gear by pulling the single rack to one side.
Further, the hand-pulling mechanism comprises a rocker arm, one end of the rocker arm is rotationally connected to the fixed plate, protruding cylinders are fixed to the upper side face and the lower side face of the other end of the rocker arm, and the protruding cylinders on the lower side are slidably connected to the inner side of a first groove formed in the length direction of the single rack.
Further, the hand-pushing mechanism further comprises a hand-pushing plate, a second groove is formed in the lower surface of the hand-pushing plate, the protruding cylinder on the upper side of the rocker arm is connected in the second groove in a sliding mode, and a handle is arranged on the upper surface of the hand-pushing plate.
Further, the second groove is arranged on the lower surface of the hand push plate in an inclined mode.
Furthermore, the hand push plate is of a square structure, and the second groove is arranged along the diagonal edge of the hand push plate.
Furthermore, a limiting column is further arranged on the fixing plate, and the limiting column is arranged back to one side of the single-rack tooth opening.
The utility model also discloses a moulded case circuit breaker, be provided with the quick automatic combined floodgate mechanism of foretell moulded case circuit breaker on the circuit breaker.
Has the advantages that:
1. the utility model discloses a setting up the single rack that rotates the connection and rotate with gear engagement, realize the circuit breaker self-clutching, reliably realize detaining again-the quick combined floodgate of combined floodgate operation, can have electronic, manual two kinds of operations concurrently, need not stop direct current motor when manual operation, improve combined floodgate efficiency.
2. The utility model discloses direct current motor is used to the power supply of quick combined floodgate mechanism, and its rotational speed is higher, can reach 25r/min, compares in alternating current motor's rotational speed 2.5r/min, and its rotational speed improves greatly, can realize quick combined floodgate.
3. The utility model discloses the mechanism is dialled to hand utilizes the rocking arm to slide in the recess of single rack, can fluctuate single rack through protruding cylinder and remove to not mesh with the gear, realizes the circuit breaker from separation and reunion and need not close DC motor.
4. The utility model discloses set up the hand push pedal above the rocking arm, the hand push board can cover the single rack, directly stirs through the handle, need not be with the help of other appurtenance, the manual divide-shut brake of being convenient for.
5. The utility model discloses set up the recess of slope at the hand push board lower surface, the level is stirred when can guaranteeing that the hand push board is stirred, but the level is stirred and can realize that the single rack uses its one end to rotate as the initial point.
Drawings
Fig. 1 is a schematic view of the connection structure of the quick automatic closing mechanism and the circuit breaker of the plastic case circuit breaker of the present invention;
fig. 2 is a schematic structural view of the fast automatic closing mechanism of the molded case circuit breaker of the present invention;
fig. 3 is the utility model discloses moulded case circuit breaker automatic switching-on mechanism hand push board structure schematic diagram fast.
The circuit breaker comprises a direct current motor 1, a gear 2, a single rack 3, a fixing plate 4, a reduction gearbox 5, a circuit breaker main mechanism lever support 6, a rocker arm 7, a support column 8, a raised cylinder 9, a first groove 10, a hand push plate 11, a second groove 12, a handle 13 and a limiting column 14.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model relates to a circuit breaker technical field for the mechanism that can supply quick combined floodgate on the circuit breaker, use based on moulded case circuit breaker, disclose a quick automatic combined floodgate mechanism of moulded case circuit breaker mainly including being used for power supply direct current motor 1, gear 2, single rack 3 and hand when electronic combined floodgate and dial the mechanism, direct current motor 1 is fixed in on the circuit breaker, fixed surface 4 on the direct current motor 1, fixed plate 4 passes through the screw-fastening, direct current motor 1's output and reducing gear box 5 are connected. The gear 2 is fixed at the output end of the reduction box 5, and the direct current motor 1 rotates to drive the gear 2 to rotate. 3 sides of single rack set up the tooth mouth, and its one end rotates along 2 radial directions of gear to be connected in circuit breaker main engine lever support 6, and 3 tooth mouths of single rack are engaged with gear 2, and the other end of single rack 3 is located fixed plate 4 upper surface. The hand-pulling mechanism is fixed on the single rack 3, and the single rack 3 can be separated from the gear 2 by pulling the single rack 3 to one side.
In this embodiment, the hand-pulling mechanism comprises a rocker arm 7, one end of the rocker arm 7 is rotatably connected to the fixing plate 4 through a support column 8, the upper side surface and the lower side surface of the other end of the rocker arm are respectively provided with a convex cylinder 9, the convex cylinders 9 on the lower side are slidably connected into a first groove 10 arranged along the length direction of the single rack 3, the single rack 3 can be pulled to one side by pulling the convex cylinders 9 on the upper side, so that the gear 2 is not meshed with the single rack 3, and the self-clutch is realized.
When the molded case circuit breaker is in the opening state, the tooth mouth of the single rack 3 is not meshed with the gear 2, and the direct current motor 1 is in the starting state at all. When manual switching-on is needed, the manual toggle rocker arm 7 drives the single rack 3 to rotate towards the gear 2 until the two are meshed, and then the reclosing process is completed. The direct current motor 1 continues to rotate, and the single rack 3 is meshed with the gear 2 until the closing process is completed.
In order to facilitate manual operation of an operator, when the operating personnel stir the rocker through the convex cylinders 9, the stirring track is arc-shaped, the rocker arm 7 is further provided with a hand pushing plate 11 in the embodiment, the lower surface of the hand pushing plate 11 is provided with a second groove 12, the convex cylinders 9 on the upper side of the rocker arm 7 are connected in the second groove 12 in a sliding manner, and the upper surface of the hand pushing plate 11 is provided with a handle 13. The second groove 12 is formed in an inclined shape at the lower surface of the hand push plate 11. In this embodiment, the hand pushing plate 11 has a square structure, and the second groove 12 is disposed along the diagonal edge of the hand pushing plate 11. When stirring through handle 13 like this, only need extend A direction level in fig. 1 and stir, the level stir handle 13 back, rocking arm 7 anticlockwise rotates certain angle, and at this moment, the protruding cylinder 9 of rocking arm 7 lower surface slides in first recess 10, and the protruding cylinder 9 of rocking arm 7 upper surface slides in the second recess 12 of hand push board 11 lower surface, realizes that the radian of a rocking arm 7 is rotatory, pulls away gear 2 with single rack 3.
A limiting column 14 is further arranged on the fixing plate 4, and the limiting column 14 is arranged on one side, back to the tooth mouth of the single rack 3. The single rack 3 is arranged between the limiting column 14 and the gear 2.
The utility model also discloses a moulded case circuit breaker is provided with the quick automatic combined floodgate mechanism of foretell moulded case circuit breaker on the circuit breaker, refers to figure 1.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. The utility model provides a quick automatic combined floodgate mechanism of moulded case circuit breaker, uses based on moulded case circuit breaker, its characterized in that includes:
the direct current motor (1) is fixed on the circuit breaker, a fixing plate (4) is arranged above the direct current motor, and the output end of the direct current motor is connected with the reduction gearbox (5);
the gear (2) is fixed at the output end of the reduction gearbox (5);
one end of the single rack (3) is rotatably connected to a lever bracket (6) of a main mechanism of the circuit breaker along the radial direction of the gear (2), and a tooth opening of the single rack (3) is meshed with the gear (2);
the hand-pulling mechanism is fixed on the single rack (3), and the single rack (3) can be separated from the gear (2) by pulling the single rack (3) to one side.
2. The molded case circuit breaker rapid automatic closing mechanism according to claim 1, wherein the hand-operated mechanism comprises a rocker arm (7), one end of the rocker arm (7) is rotatably connected to the fixing plate (4), the upper and lower side surfaces of the other end of the rocker arm are both fixed with protruding cylinders (9), and the protruding cylinders (9) on the lower side are slidably connected in first grooves (10) arranged along the length direction of the single rack (3).
3. The molded case circuit breaker rapid automatic closing mechanism according to claim 2, wherein the hand-pulling mechanism further comprises a hand-pushing plate (11), a second groove (12) is formed in a lower surface of the hand-pushing plate (11), the protruding cylinder (9) on the upper side of the rocker arm (7) is slidably connected in the second groove (12), and a handle (13) is arranged on an upper surface of the hand-pushing plate (11).
4. The quick automatic closing mechanism for the molded case circuit breaker according to claim 3, wherein the second groove (12) is formed in an inclined shape on a lower surface of the hand push plate (11).
5. The mechanism for rapidly and automatically closing the molded case circuit breaker according to claim 4, wherein the hand push plate (11) has a square structure, and the second groove (12) is disposed along a diagonal side of the hand push plate (11).
6. The molded case circuit breaker rapid automatic closing mechanism according to claim 1, wherein the fixing plate (4) is further provided with a limiting post (14), and the limiting post (14) is arranged on a side of the single rack (3) facing away from a tooth opening.
7. A molded case circuit breaker, characterized in that the circuit breaker is provided with the molded case circuit breaker rapid automatic closing mechanism of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120130041.8U CN214012877U (en) | 2021-01-19 | 2021-01-19 | Quick automatic closing mechanism of molded case circuit breaker and molded case circuit breaker with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120130041.8U CN214012877U (en) | 2021-01-19 | 2021-01-19 | Quick automatic closing mechanism of molded case circuit breaker and molded case circuit breaker with same |
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| Publication Number | Publication Date |
|---|---|
| CN214012877U true CN214012877U (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120130041.8U Active CN214012877U (en) | 2021-01-19 | 2021-01-19 | Quick automatic closing mechanism of molded case circuit breaker and molded case circuit breaker with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334488A (en) * | 2022-03-10 | 2022-04-12 | 江西省农业科学院农产品加工研究所 | Electric switch device for automatically feeding grains |
-
2021
- 2021-01-19 CN CN202120130041.8U patent/CN214012877U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334488A (en) * | 2022-03-10 | 2022-04-12 | 江西省农业科学院农产品加工研究所 | Electric switch device for automatically feeding grains |
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