Quick-break switch capable of automatically closing

Abstract

The invention discloses a quick-break switch capable of being automatically switched on, and relates to the technical field of quick-break switches, the quick-break switch comprises an outer shell, a reset limiting assembly and an automatic switching-on assembly, a fuse is installed on the left side in the outer shell, a static socket is connected to the lower portion of the fuse, and an insulating shaft is rotatably installed on the lower portion in the outer shell; the left side of the insulating shaft is fixedly provided with a knife switch, the right side of the insulating shaft is sequentially provided with a reset limiting assembly, an automatic closing assembly and a quick-acting plate from left to right, the automatic closing assembly comprises a driven gear ring, a driving gear, a motor shaft and a micro motor, and the driven gear ring is fixed on the outer side of the insulating shaft. According to the quick-break switch capable of automatically closing, the closing handle and the automatic closing assembly have two closing modes, the use is relatively flexible, the automatic closing assembly enables a knife switch of the insulating shaft to be automatically closed, manual closing and power transmission are not needed, the safety is relatively high, and the reset limiting assembly can prevent a user from forcefully pushing the opening and closing handle to reset the switch.

Description

Technical Field

[0001] The invention relates to the technical field of quick-break switches, in particular to a quick-break switch capable of automatically closing. Background Art

[0002] Quick-break protection is a protective device in the electrical system. It can cut off the circuit and stop the current flow in time when a short circuit or overload occurs in the circuit. Generally, when quick-break current is needed, it is often because of severe overcurrent, which is an overcurrent of accidental nature. Quick-break uses the spring mechanism or other energy storage mechanism set on the contact of the switch to force the switch to reduce rapidly during the disconnection process. This can avoid damage to electrical equipment and reduce the risk of personal injury and fire accidents.

[0003] For example, the invention with application number CN201620497429.0 discloses a quick-assembly switch circuit breaker. The circuit breaker structure similar to the above application currently still has the following shortcomings: during use, it is not convenient to quickly and automatically close the switch, it is more troublesome to use, and it is also easy to automatically close the switch when the current exceeds the specified unsafe condition, or to be used for forced closing, and the power supply reliability is insufficient.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a quick-break switch that can automatically close is proposed. Summary of the invention

[0005] The object of the present invention is to provide a quick-break switch capable of automatically closing the switch, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quick-break switch capable of automatically closing, comprising an outer shell, a reset limiting assembly and an automatic closing assembly, wherein a fuse is installed on the left side of the inner part of the outer shell, and a static socket is connected to the bottom of the fuse, an insulating shaft is rotatably installed on the lower part of the inner part of the outer shell, and a knife is fixed on the left side of the insulating shaft, and a reset limiting assembly, an automatic closing assembly and a quick-acting plate are installed on the right side of the insulating shaft from left to right in sequence, and the automatic closing assembly comprises a passive gear ring, a driving gear, a motor shaft and a micro motor, the passive gear ring is fixed to the outer side of the insulating shaft, and a driving gear is meshed below the passive gear ring, the motor shaft is connected to the left side of the driving gear, and a micro motor is installed on the left side of the motor shaft, a motor seat is arranged below the micro motor, and the motor seat is bolted to the inner bottom wall of the outer shell.

[0007] Furthermore, the right side of the insulating shaft rotates and passes through the side wall of the outer shell, and a closing handle is installed at the right end of the insulating shaft, and the closing handle is located outside the outer shell.

[0008] Furthermore, the reset limiting assembly includes a fixing seat, a micro telescopic rod and a limit block, the fixing seat is fixed to the outside of the insulating shaft, and the micro telescopic rod is installed above the fixing seat, and the limit block is fixed to the top of the micro telescopic rod.

[0009] Furthermore, the reset limiting assembly also includes a limit stop plate, the limit stop plate is arranged on the rear side of the limit block, and the limit stop plate is fixedly connected to the rear wall of the outer shell.

[0010] Furthermore, a quick-acting spring is connected to the upper right side of the inner portion of the outer shell, and the lower side of the quick-acting spring is connected to the quick-acting plate.

[0011] Furthermore, a transparent outer cover is rotatably mounted on the front outer side of the outer shell through a hinge, and a sealing ring is provided at the connection between the transparent outer cover and the outer shell.

[0012] Furthermore, a protective component is installed on the outside of the transparent outer cover and the outer shell, and the protective component includes an arc-shaped anti-collision plate, a buffer spring and a buffer rubber plate. The arc-shaped anti-collision plate is fixed on both sides of the outside of the transparent outer cover, and the upper side and left and right sides of the outer shell are connected to the buffer spring, and the outside of the buffer spring is fixed with a buffer rubber plate.

[0013] Furthermore, the operation method is as follows: the fuse inside the outer shell disconnects the circuit after the current exceeds the limit. When the circuit breaker needs to be closed, under the current safety condition, the micro-telescopic rod is used to drive the limit card block to rise and fall, so that the limit card block is lowered and will not be blocked by the limit block plate, and then the insulating shaft and the knife are manually driven to rotate by the closing handle to manually close the knife, or the automatic closing component is used for automatic closing. On the contrary, when the current exceeds the specified value, the limit card block at the top of the micro-telescopic rod will rise and be set in front of the limit block plate and be blocked by the limit block plate, thereby making the limit card block and the insulating shaft unable to rotate, so as to prevent the user from Push the opening and closing handle forcefully to reset the switch, and avoid the automatic closing of the automatic closing component under unsafe conditions; in the process of automatic closing, the micro motor and the motor shaft drive the rotation of the active gear, and the meshing connection between the active gear and the passive gear ring can drive the rotation of the passive gear ring and the insulating shaft, so that the knife of the insulating shaft can automatically close, and when in use, the transparent outer cover can be used to view the closing status of the inside of the outer shell, and the arc-shaped anti-collision plate is made of flexible material to protect the surface of the transparent outer cover from collision. When in use, the buffer rubber plates on the upper side and left and right sides of the outer shell can protect the outer shell under the elastic action of the buffer spring.

[0014] The present invention provides a quick-break switch capable of automatically closing the switch, which has the following beneficial effects:

[0015] The present invention is provided with a closing handle and an automatic closing component. The closing handle is convenient for manually driving the insulating shaft and the knife to rotate so that the knife can be manually closed. The closing handle is located outside the outer shell and can be manually closed without opening the cover. The micro motor and the motor shaft are convenient for driving the rotation of the driving gear. The meshing connection between the driving gear and the passive gear ring can drive the rotation of the passive gear ring and the insulating shaft, so that the knife of the insulating shaft can be automatically closed. There is no need for manual closing and power supply, and the safety is high. It can also correct the false tripping of the circuit breaker itself caused by poor mechanism or malfunction of relay protection. It is more flexible to use because it has two closing modes.

[0016] The present invention is provided with a reset limiting component, which can easily drive the lifting and lowering of the limit card block through the micro-telescopic rod, so that the limit card block is lowered when the switch is safely closed and will not be blocked by the limit block plate. On the contrary, the limit card block at the top of the micro-telescopic rod rises and is arranged in front of the limit block plate and can be blocked by the limit block plate, so that the limit card block and the insulating shaft cannot rotate, thereby preventing the user from forcefully pushing the opening and closing handle to reset the switch, so that the power supply is reliable, and the protective component is convenient for anti-collision protection of the outer surface of each outer shell of the transparent outer cover to avoid collision damage to the outer shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal left view of a quick-break switch capable of automatically closing the switch according to the present invention;

[0018] Figure 2 It is a schematic diagram of the internal right side structure of a quick-break switch capable of automatically closing according to the present invention;

[0019] Figure 3 It is a schematic diagram of the overall structure of an insulating shaft of a quick-break switch capable of automatic closing according to the present invention;

[0020] Figure 4 It is a structural schematic diagram of an automatic closing component of a quick-break switch capable of automatic closing according to the present invention;

[0021] Figure 5 The figure is a schematic diagram of the external structure of a quick-break switch capable of automatically closing according to the present invention.

[0022] In the figure: 1. outer shell; 2. fuse; 3. static socket; 4. insulating shaft; 5. knife switch; 6. closing handle; 7. reset limit assembly; 701. fixed seat; 702. micro telescopic rod; 703. limit block; 704. limit block; 8. automatic closing assembly; 801. passive gear ring; 802. driving gear; 803. motor shaft; 804. micro motor; 9. quick-acting spring; 10. quick-acting plate; 11. transparent outer cover; 12. protection assembly; 1201. arc-shaped anti-collision plate; 1202. buffer spring; 1203. buffer rubber plate. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] like Figure 1-Figure 2 As shown, a quick-break switch capable of automatically closing includes an outer shell 1, a reset limiting assembly 7 and an automatic closing assembly 8, a fuse 2 is installed on the left side of the inner part of the outer shell 1, and a static socket 3 is connected below the fuse 2, an insulating shaft 4 is rotatably installed on the lower part of the inner part of the outer shell 1, and a knife 5 is fixed on the left side of the insulating shaft 4, the right side of the insulating shaft 4 rotates through the side wall of the outer shell 1, and a closing handle 6 is installed at the right end of the insulating shaft 4, and the closing handle 6 is located outside the outer shell 1, and the right side of the insulating shaft 4 is sequentially installed with a reset limiting assembly 7, an automatic closing assembly 8 and a quick-acting plate 10 from left to right, a quick-acting spring 9 is connected to the upper right side of the inner part of the outer shell 1, and the lower side of the quick-acting spring 9 is connected to the quick-acting plate 10; the fuse 2 inside the outer shell 1 can disconnect the circuit after the current exceeds the specified value, and the closing handle 6 is convenient to manually drive the rotation of the insulating shaft 4 and the knife 5 so that the knife 5 can be manually closed, and the closing handle 6 is located outside the outer shell 1 and can be manually closed without opening the cover.

[0025] like Figure 1 and Figure 3 As shown, the reset limiting assembly 7 includes a fixing seat 701, a micro telescopic rod 702 and a limit block 703, the fixing seat 701 is fixed to the outside of the insulating shaft 4, and the micro telescopic rod 702 is installed above the fixing seat 701, and the limit block 703 is fixed to the top of the micro telescopic rod 702, the reset limiting assembly 7 also includes a limit block 704, the limit block 704 is arranged on the rear side of the limit block 703, and the limit block 704 is fixedly connected to the rear wall of the outer shell 1; The micro telescopic rod 702 is used to drive the limit block 703 to rise and fall, so that when the switch is safely closed, the limit block 703 is lowered and will not be blocked by the limit block plate 704. On the contrary, the limit block 703 at the top of the micro telescopic rod 702 rises in front of the limit block plate 704 and can be blocked by the limit block plate 704, so that the limit block 703 and the insulating shaft 4 cannot rotate, thereby preventing the user from forcefully pushing the opening and closing handle 6 to reset the switch, thereby ensuring reliable power supply.

[0026] like Figure 1-Figure 4As shown, the automatic closing assembly 8 includes a passive gear ring 801, a driving gear 802, a motor shaft 803 and a micro motor 804. The passive gear ring 801 is fixed to the outside of the insulating shaft 4, and the driving gear 802 is meshed below the passive gear ring 801. The left side of the driving gear 802 is connected to the motor shaft 803, and the micro motor 804 is installed on the left side of the motor shaft 803. A motor seat is arranged below the micro motor 804, and the motor seat is bolted to the inner bottom wall of the outer shell 1; the micro motor 804 and the motor shaft 803 are used to drive the rotation of the driving gear 802. The meshing connection between the driving gear 802 and the passive gear ring 801 can drive the rotation of the passive gear ring 801 and the insulating shaft 4, so that the knife 5 of the insulating shaft 4 can be automatically closed, and there is no need for manual closing and power supply, which has high safety.

[0027] like Figure 5 As shown, a transparent outer cover 11 is installed on the front outer side of the outer shell 1 through a hinge, and a sealing ring is provided at the connection between the transparent outer cover 11 and the outer side of the outer shell 1, and a protective component 12 is installed on the transparent outer cover 11 and the outer side of the outer shell 1, and the protective component 12 includes an arc-shaped anti-collision plate 1201, a buffer spring 1202 and a buffer rubber plate 1203, the arc-shaped anti-collision plate 1201 is fixed on both sides of the outside of the transparent outer cover 11, the upper side and the left and right sides of the outer shell 1 are connected with buffer springs 1202, and the outer side of the buffer spring 1202 is fixed with a buffer rubber plate 1203; the transparent outer cover 11 is convenient for viewing the closing status of the inner part of the outer shell 1, the arc-shaped anti-collision plate 1201 is made of flexible material, which is convenient for anti-collision protection of the appearance of the transparent outer cover 11, and the buffer rubber plates 1203 on the upper side and the left and right sides of the outer shell 1 can protect the outer shell 1 under the elastic action of the buffer spring 1202 to avoid collision damage to the outer shell 1.

[0028] In summary, if Figure 1-Figure 5 As shown, the quick-break switch capable of automatic closing, when in use, the fuse 2 inside the outer shell 1 can disconnect the circuit after the current exceeds the specified value. When closing is required, under the current safety condition, the miniature telescopic rod 702 can drive the limit card block 703 to rise and fall, so that the limit card block 703 is lowered at this time and will not be blocked by the limit block plate 704, and then the insulating shaft 4 and the knife 5 can be manually driven to rotate by the closing handle 6 to make the knife 5 manually closed, or the automatic closing component 8 can be used for automatic closing. On the contrary, when the current exceeds the specified value, the limit card block 703 at the top of the miniature telescopic rod 702 will rise and be set in front of the limit block plate 704 and be blocked by the limit block plate 704, so that the limit card block 703 and the insulating shaft 4 cannot rotate, so as to prevent the user from forcefully pushing the opening and closing handle 6 to reset the switch, and at the same time avoid the automatic closing component 8 from automatically closing under unsafe conditions, thereby ensuring reliable power supply;

[0029] During the automatic closing process of the assembly 8, the micro motor 804 and the motor shaft 803 drive the active gear 802 to rotate, and the active gear 802 is meshed with the passive gear ring 801 to drive the passive gear ring 801 and the insulating shaft 4 to rotate, so that the knife 5 of the insulating shaft 4 can be automatically closed, without the need for manual closing and power supply, and has high safety. When in use, the transparent outer cover 11 can be used to view the closing status inside the outer shell 1, and the arc-shaped anti-collision plate 1201 is made of flexible material to protect the surface of the transparent outer cover 11 from collision. When in use, the buffer rubber plates 1203 on the upper side and left and right sides of the outer shell 1 can protect the outer shell 1 under the elastic action of the buffer spring 1202 to avoid collision damage to the outer shell 1, thus completing the use of the quick-break switch that can automatically close.

[0030] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A quick-break switch capable of automatically closing, comprising an outer shell (1), a reset limiting component (7) and an automatic closing component (8), characterized in that: A fuse (2) is installed on the left side of the interior of the outer shell (1), and a static socket (3) is connected below the fuse (2). An insulating shaft (4) is rotatably installed below the interior of the outer shell (1), and a switch blade (5) is fixed on the left side of the insulating shaft (4). A reset limiting component (7), an automatic closing component (8) and a quick-acting plate (10) are installed on the right side of the insulating shaft (4) in sequence from left to right. The automatic closing component (8) includes a passive gear ring (801), a driving gear (80 2), a motor shaft (803) and a micro motor (804), the passive gear ring (801) is fixed to the outside of the insulating shaft (4), and a driving gear (802) is meshed below the passive gear ring (801), the motor shaft (803) is connected to the left side of the driving gear (802), and the micro motor (804) is installed on the left side of the motor shaft (803), a motor seat is arranged below the micro motor (804), and the motor seat is bolted to the inner bottom wall of the outer shell (1).

2. The quick-break switch capable of automatic closing according to claim 1, characterized in that: The right side of the insulating shaft (4) rotates and penetrates the side wall of the outer shell (1), and a closing handle (6) is installed at the right end of the insulating shaft (4), and the closing handle (6) is located outside the outer shell (1).

3. The quick-break switch capable of automatic closing according to claim 2, characterized in that: The reset limiting assembly (7) comprises a fixing seat (701), a micro telescopic rod (702) and a limit block (703); the fixing seat (701) is fixed to the outside of the insulating shaft (4); the micro telescopic rod (702) is installed above the fixing seat (701); and the limit block (703) is fixed at the top of the micro telescopic rod (702).

4. The quick-break switch capable of automatic closing according to claim 3, characterized in that: The reset limiting assembly (7) further comprises a limit stop plate (704), the limit stop plate (704) being arranged on the rear side of the limit block (703), and the limit stop plate (704) is fixedly connected to the rear wall of the outer shell (1).

5. The quick-break switch capable of automatic closing according to claim 4, characterized in that: A quick-acting spring (9) is connected to the upper right side of the inner portion of the outer shell (1), and the lower side of the quick-acting spring (9) is connected to a quick-acting plate (10).

6. The quick-break switch capable of automatic closing according to claim 5, characterized in that: A transparent outer cover (11) is rotatably mounted on the front outer side of the outer shell (1) via a hinge, and a sealing ring is provided at the connection between the transparent outer cover (11) and the outer shell (1).

7. The quick-break switch capable of automatic closing according to claim 6, characterized in that: A protective component (12) is installed on the outer sides of the transparent outer cover (11) and the outer shell (1), and the protective component (12) comprises an arc-shaped anti-collision plate (1201), a buffer spring (1202) and a buffer rubber plate (1203).

8. The quick-break switch capable of automatic closing according to claim 7, characterized in that: The arc-shaped anti-collision plate (1201) is fixed to the two outer sides of the transparent outer cover (11), and the upper side and the left and right sides of the outer shell (1) are connected to buffer springs (1202).

9. The quick-break switch capable of automatic closing according to claim 8, characterized in that: A buffer rubber plate (1203) is fixed to the outer side of the buffer spring (1202).

10. The quick-break switch capable of automatic closing according to claim 9, characterized in that: The operation method is as follows: the fuse (2) inside the outer shell (1) disconnects the circuit after the current exceeds the limit value. When the switch needs to be closed, under the current safety condition, the micro telescopic rod (702) drives the limit card block (703) to rise and fall, so that the limit card block (703) is lowered and will not be blocked by the limit block plate (704). Then, the insulating shaft (4) and the switch knife (5) are manually driven to rotate through the closing handle (6) so that the switch knife (5) is manually closed, or the automatic closing component (8) is used to automatically close the switch. On the contrary, when the current exceeds the specified value, the limit card block (703) at the top of the micro telescopic rod (702) will rise and be set in front of the limit block plate (704) and be blocked by the limit block plate (704), thereby making the limit card block (703) and the insulating shaft (4) unable to rotate, so as to prevent the user from forcefully pushing the opening and closing handle. (6) to reset the switch, and at the same time to avoid the automatic closing component (8) from automatically closing in an unsafe state; during the automatic closing component (8), the micro motor (804) and the motor shaft (803) drive the active gear (802) to rotate, and the active gear (802) is meshed with the passive gear ring (801) to drive the passive gear ring (801) and the insulating shaft (4) to rotate, thereby enabling the switch blade (5) of the insulating shaft (4) to automatically close, and when in use, the transparent outer cover (11) is used to view the closing status inside the outer shell (1), and the arc-shaped anti-collision plate (1201) is made of a flexible material to provide anti-collision protection for the surface of the transparent outer cover (11), and the buffer rubber plates (1203) on the upper side and left and right sides of the outer shell (1) can protect the outer shell (1) under the elastic action of the buffer spring (1202).

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