CN111508794A

CN111508794A - Circuit breaker with good flow-resisting performance

Info

Publication number: CN111508794A
Application number: CN202010369894.7A
Authority: CN
Inventors: 王中云
Original assignee: Daile Smart Grid Technology Nanjing Co ltd
Current assignee: Daile Smart Grid Technology Nanjing Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-08-07
Anticipated expiration: 2040-04-30
Also published as: CN111508794B

Abstract

The invention discloses a circuit breaker with good flow-resisting performance, which comprises a circuit breaker shell and a handle, wherein one end of the handle penetrates through the circuit breaker shell and extends into the circuit breaker shell, one side of the inner wall of the circuit breaker shell is fixedly connected with a connecting shaft, the outer surface of the connecting shaft is rotatably connected with a driving disc, one end of the handle is fixedly connected with the outer surface of the driving disc, and the front surface of the driving disc is rotatably connected with a driving mechanism through a short rod. This circuit breaker that choked flow performance is good sets up first conducting sleeve and first conducting strip through the surface at last guide pillar, recycles first conducting sleeve and the first conducting strip on last guide pillar surface, when the spliced pole is located last guide pillar and down between the guide pillar, can contact first conducting sleeve and second conducting sleeve with spliced pole and lower guide pillar respectively, when the spliced pole does not lie in last guide pillar and down between the guide pillar, play the choked flow effect, this structure is comparatively simple, easily promotes.

Description

Circuit breaker with good flow-resisting performance

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker with good flow-resisting performance.

Background

The circuit breaker is a switching device capable of closing, bearing and opening current under normal circuit conditions and closing, bearing and opening current under abnormal circuit conditions within a specified time, and can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, a motor and the like, automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the circuit breaker has the function equivalent to the combination of a fuse type switch, an over-under-heat relay and the like, and electricity generation, transmission and distribution are extremely important links in use. The distribution system comprises a transformer and various high-low voltage electrical equipment, and the low-voltage circuit breaker is an electrical appliance with a large using amount.

The existing circuit breaker basically realizes switching through contact or separation of a fixed contact and a movable contact, but when the movable contact is separated from the fixed contact, if external current is overlarge, air between the movable contact and the fixed contact can be punctured, so that partial current passes through the space between the movable contact and the fixed contact, and therefore the circuit breaker with good current-blocking performance is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the circuit breaker with good current-blocking performance, and solves the problem that air between a movable contact and a fixed contact is broken down to cause partial current to pass through the movable contact and the fixed contact.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the circuit breaker with good flow resistance comprises a breaker shell and a handle, wherein one end of the handle penetrates through the breaker shell and extends to the inside of the breaker shell, a connecting shaft is fixedly connected to one side of the inner wall of the breaker shell, a driving disc is rotatably connected to the outer surface of the connecting shaft, one end of the handle is fixedly connected with the outer surface of the driving disc, the front surface of the driving disc is rotatably connected with a driving mechanism through a short rod, limiting plates are fixedly connected to the upper side and the lower side of one side of the inner wall of the breaker shell, a connecting mechanism is slidably connected between the two opposite sides of the limiting plates, the right side of the connecting mechanism is slidably connected with a pushing block, a sliding groove is formed in the front surface of the pushing block, a sliding rod is slidably connected to the inner surface of the sliding groove, and the outer surface of the sliding.

Preferably, the top of the limiting plate located above is fixedly connected with an upper guide pillar, the bottom of the limiting plate located above is provided with an object placing groove, the bottom end of the upper guide pillar penetrates through the limiting plate and the object placing groove and extends to the inside of the object placing groove, the bottom of the limiting plate located below is fixedly connected with a lower guide pillar, the top of the limiting plate located below is provided with an arc-shaped groove, and the top end of the lower guide pillar penetrates through the limiting plate and the arc-shaped groove and extends to the inside of the arc-shaped groove.

Preferably, the connecting mechanism includes a sliding block, a fixed groove is formed inside the sliding block, a fixed sleeve is fixedly connected inside the fixed groove, a connecting column is fixedly connected to the inner surface of the fixed sleeve, a first conducting strip is fixedly connected to the bottom end of the connecting column, a first conducting sleeve is slidably connected to the lower portion of the surface of the connecting column, a second conducting strip is fixedly connected to the bottom end of the upper guide column, and a second conducting sleeve is slidably connected to the lower portion of the surface of the upper guide column.

Preferably, the top and the bottom of sliding block respectively with two limiting plate relative one side sliding connection, the internal surface of first conducting sleeve and the both sides sliding connection of first conducting strip, the internal surface of second conducting sleeve and the both sides sliding connection of second conducting strip.

Preferably, actuating mechanism includes the dwang, the front of dwang is rotated and is connected with the axis of rotation, the one end of axis of rotation runs through the dwang and extends to the outside of dwang, one side fixed connection of the one end of axis of rotation and cutout shell inner wall, the thing chamber is put to the inside of dwang has been seted up, the right-hand member swing joint of dwang has the connecting rod, the left end of connecting rod runs through the dwang and extends to the inside of dwang, the left end fixedly connected with sliding plate of dwang, the surface cover of connecting rod is equipped with the spring.

Preferably, both sides of the sliding plate are slidably connected with both sides of the inner wall of the storage chamber, and one end of the spring is fixedly connected with one side of the sliding plate.

Preferably, the left end fixedly connected with catch bar of dwang, the rotation groove has been seted up on the right side of catch block, the internal surface of catch bar rotates with the surface of slide bar to be connected.

Preferably, the right end of the connecting rod is fixedly connected with a lantern ring, and the inner surface of the lantern ring is rotatably connected with the outer surface of the short rod.

(III) advantageous effects

The invention provides a circuit breaker with good current-blocking performance. Compared with the prior art, the method has the following beneficial effects:

(1) the circuit breaker with good flow resistance is characterized in that a connecting shaft is fixedly connected to one side of the inner wall of a shell of the circuit breaker, the outer surface of the connecting shaft is rotatably connected with a driving disc, one end of a handle is fixedly connected with the outer surface of the driving disc, the front surface of the driving disc is rotatably connected with a driving mechanism through a short rod, limiting plates are fixedly connected to the upper part and the lower part of one side of the inner wall of the shell of the circuit breaker, a connecting mechanism is slidably connected between the opposite sides of the two limiting plates, the right side of the connecting mechanism is slidably connected with a pushing block, the front surface of the pushing block is provided with a sliding groove, the inner surface of the sliding groove is slidably connected with a sliding rod, the outer surface of the sliding rod is rotated with the left end of the driving mechanism, the top of the upper limiting plate is fixedly connected with an, the connecting mechanism between the two limiting plates is reused, and because the distance between the upper guide pillar and the lower guide pillar is far away, and the connecting mechanism is arranged between the upper guide pillar and the lower guide pillar, the air can be prevented from being punctured by the current to a great extent, so that a good flow blocking effect is achieved, the structure is simple, and the popularization is easy.

(2) The circuit breaker with good flow resistance is characterized in that an upper guide pillar is fixedly connected to the top of an upper limiting plate, an object containing groove is formed in the bottom of the upper limiting plate, the bottom end of the upper guide pillar penetrates through the limiting plate and the object containing groove and extends to the inside of the object containing groove, a lower guide pillar is fixedly connected to the bottom of a lower limiting plate, an arc-shaped groove is formed in the top of the lower limiting plate, the top end of the lower guide pillar penetrates through the limiting plate and the arc-shaped groove and extends to the inside of the arc-shaped groove, a fixing groove is formed in the inside of the sliding block, a fixing sleeve is fixedly connected to the inside of the fixing groove, a connecting column is fixedly connected to the inner surface of the fixing sleeve, a first conducting sheet is fixedly connected to the bottom end of the connecting column, a first conducting sleeve is slidably connected to the lower part of, through setting up first conductive sleeve and first conducting strip on the surface of last guide pillar, recycle first conductive sleeve and the first conducting strip on last guide pillar surface, when the spliced pole is located last guide pillar and down between the guide pillar, can contact first conductive sleeve and second conductive sleeve with spliced pole and lower guide pillar respectively, when the spliced pole does not lie in between last guide pillar and the lower guide pillar, play the choked flow effect, this structure is comparatively simple, easily promotes.

(3) The circuit breaker with good flow resistance comprises a rotating rod on a driving mechanism, a rotating shaft is connected to the front side of the rotating rod in a rotating mode, one end of the rotating shaft penetrates through the rotating rod and extends to the outside of the rotating rod, one end of the rotating shaft is fixedly connected with one side of the inner wall of a shell of the circuit breaker, a storage cavity is formed in the rotating rod, a connecting rod is movably connected to the right end of the rotating rod, the left end of the connecting rod penetrates through the rotating rod and extends to the inside of the rotating rod, a sliding plate is fixedly connected to the left end of the rotating rod, a spring is sleeved on the outer surface of the connecting rod, the connecting rod is arranged in the rotating rod and is matched with the spring and the sliding plate in the storage cavity, the handle can automatically move upwards or downwards by pushing the handle to the middle position, the, the practicability of the device is improved.

Drawings

Fig. 1 is a partial structural sectional view of a circuit breaker according to the present invention;

FIG. 2 is a front view of the internal structure of the coupling mechanism of the present invention;

FIG. 3 is a front view of the internal structure of the driving mechanism of the present invention;

FIG. 4 is a side view of the internal structure of the pusher block of the present invention;

fig. 5 is a side view of the outer structure of the drive plate of the present invention.

In the figure, 1-cutout shell, 2-handle, 3-connecting shaft, 4-driving disk, 5-short rod, 6-driving mechanism, 61-rotating rod, 62-rotating shaft, 63-object placing cavity, 64-connecting rod, 65-sliding plate, 66-spring, 7-limiting plate, 8-connecting mechanism, 81-sliding block, 82-fixing groove, 83-fixing sleeve, 84-connecting column, 85-first conducting strip, 86-first conducting sleeve, 87-second conducting strip, 88-second conducting sleeve, 9-pushing block, 10-sliding groove, 11-sliding rod, 12-upper guiding column, 13-object placing groove, 14-lower guiding column, 15-arc groove, 16-pushing rod, 17-rotating groove, 18-collar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a circuit breaker with good flow-resisting performance comprises a breaker shell 1 and a handle 2, wherein the right side of the breaker shell 1 is provided with a rotating port, the prior art is not introduced, one end of the handle 2 penetrates through the breaker shell 1 and extends into the breaker shell 1, one side of the inner wall of the breaker shell 1 is fixedly connected with a connecting shaft 3, the outer surface of the connecting shaft 3 is rotatably connected with a driving disc 4, the driving disc 4 on the connecting shaft 3 can be driven to rotate through the rotation of the handle 2, one end of the handle 2 is fixedly connected with the outer surface of the driving disc 4, the front surface of the driving disc 4 is rotatably connected with a driving mechanism 6 through a short rod 5, limiting plates 7 are fixedly connected above and below one side of the inner wall of the breaker shell 1, a connecting mechanism 8 is slidably connected between the opposite sides of the two limiting plates 7, and a pushing block 9 is slidably connected on the right, the front surface of the pushing block 9 is provided with a sliding groove 10, the upper part of the sliding groove 10 is arc-shaped, so that the second conductive sleeve 88 can conveniently slide out or slide in, the lower part of the sliding groove 10 is cylindrical and is the same as the object placing groove 13, the inner surface of the sliding groove 10 is connected with a sliding rod 11 in a sliding way, the outer surface of the sliding rod 11 is rotatably connected with the left end of the driving mechanism 6, the top part of the upper limiting plate 7 is fixedly connected with an upper guide post 12, the bottom part of the upper limiting plate 7 is provided with an object placing groove 13, when the connecting post 84 is not positioned in the middle of the two guide posts, the second conductive sleeve 88 slides to the inside of the object placing groove 13, the bottom end of the upper guide post 12 penetrates through the limiting plate 7 and the object placing groove 13 and extends to the inside of the object placing groove 13, the bottom part of the lower limiting plate 7 is fixedly connected with a lower guide post 14, the upper guide, the arc-shaped groove 15 can facilitate the first conductive sleeve 86 to slide out of the arc-shaped groove 15, the top end of the lower guide post 14 penetrates through the limiting plates 7 and the arc-shaped groove 15 and extends to the inside of the arc-shaped groove 15, the connecting mechanism 8 comprises a sliding block 81, a fixing groove 82 is formed in the sliding block 81, a fixing sleeve 83 is fixedly connected to the inside of the fixing groove 82, a connecting post 84 is fixedly connected to the inner surface of the fixing sleeve 83, a first conductive sheet 85 is fixedly connected to the bottom end of the connecting post 84, a first conductive sleeve 86 is slidably connected to the lower portion of the surface of the connecting post 84, a second conductive sheet 87 is fixedly connected to the bottom end of the upper guide post 12, a second conductive sleeve 88 is slidably connected to the lower portion of the surface of the upper guide post 12, the top and the bottom of the sliding block 81 are respectively slidably connected to the opposite sides of the two limiting plates 7, the inner surface of, the driving mechanism 6 includes a rotating rod 61, a rotating shaft 62 is rotatably connected to the front surface of the rotating rod 61, when the rotating rod 61 is in a horizontal state, the spring 66 is in a longest stretching state, when the handle 2 drives the rotating rod 61 to pass through the state, the spring 66 begins to shorten, and then the connecting rod 64 can be driven to rotate, so as to move the handle 2 upwards or downwards, one end of the rotating shaft 62 penetrates through the rotating rod 61 and extends to the outside of the rotating rod 61, one end of the rotating shaft 62 is fixedly connected with one side of the inner wall of the interrupter housing 1, an object placing cavity 63 is formed inside the rotating rod 61, the right end of the rotating rod 61 is movably connected with the connecting rod 64, the left end of the connecting rod 64 penetrates through the rotating rod 61 and extends to the inside of the rotating rod 61, a sliding plate 65 is fixedly connected with the left end of the rotating rod 61, a spring, one end of the spring 66 is fixedly connected with one side of the sliding plate 65, the left end of the rotating rod 61 is fixedly connected with the pushing rod 16, the right side of the pushing block 9 is provided with a rotating groove 17, the inner surface of the pushing rod 16 is rotatably connected with the outer surface of the sliding rod 11, the right end of the connecting rod 64 is fixedly connected with the lantern ring 18, the inner surface of the lantern ring 18 is rotatably connected with the outer surface of the short rod 5, and the content which is not described in detail in the specification belongs to the prior art which is well known by the technicians in the field.

When the electric shock absorber is used, the current of the upper guide post 12 is transmitted to the connecting post 84 on the sliding block 81 through the second conductive sheet 87 and the second conductive sleeve 88, and then transmitted to the lower guide post 14 through the first conductive sleeve 86 and the second conductive sheet 87, after the handle 2 is pushed downwards, the driving disc 4 on the connecting shaft 3 is driven to rotate, so that the connecting rod 64 on the short rod 5 is driven to move, so that the right end of the rotating rod 61 moves upwards, meanwhile, the connecting rod 64 moves rightwards, the sliding plate 65 slides inside the storage cavity 63, at the moment, the spring 66 is in a compressed state, when the rotating rod 61 is in a horizontal state, the spring 66 is in a longest stretching state, when the right end of the connecting rod 64 continuously moves downwards, the spring 66 can retract, so that the right end of the connecting rod 64 is driven to move upwards, so that the driving disc 4 is driven to rotate, one end of the push rod 16 moves downwards, so that the sliding rod 11 slides inside the sliding groove 10, so that the push block 9 pushes the sliding block 81 to move leftwards, so that the first conductive sleeve 86 moves upwards, and the first conductive sheet 85 is in contact with the inner wall of the first conductive sleeve 86, the first conductive sleeve 86 slides out from the inner surface of the arc-shaped groove 15, and the second conductive sleeve 88 moves upwards, and the first conductive sheet 85 is in contact with the inner wall of the second conductive sleeve 88, so that the connecting column 84 is no longer in contact with the upper guide pillar 12 and the guide pillar, the second conductive sleeve 88 slides out from the inside of the fixing groove 82, and the top of the sliding block 81 is in contact with the bottom of the second conductive sleeve 88, and the bottom of the first conductive sleeve 86 is in contact with the limiting plate 7 located below.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A circuit breaker having a good current blocking performance, comprising a breaker case (1) and a handle (2), wherein one end of the handle (2) penetrates the breaker case (1) and extends into the breaker case (1), and the circuit breaker is characterized in that: one side of the inner wall of the breaker shell (1) is fixedly connected with a connecting shaft (3), the outer surface of the connecting shaft (3) is rotationally connected with a driving disc (4), one end of the handle (2) is fixedly connected with the outer surface of the driving disc (4), the front surface of the driving disk (4) is rotationally connected with a driving mechanism (6) through a short rod (5), limiting plates (7) are fixedly connected above and below one side of the inner wall of the current breaker shell (1), a connecting mechanism (8) is connected between the opposite sides of the two limiting plates (7) in a sliding manner, the right side of the connecting mechanism (8) is connected with a pushing block (9) in a sliding way, the front side of the pushing block (9) is provided with a sliding groove (10), the inner surface of the sliding groove (10) is connected with a sliding rod (11) in a sliding mode, and the outer surface of the sliding rod (11) is rotatably connected with the left end of the driving mechanism (6).

2. The circuit breaker of claim 1, wherein: the top of the limiting plate (7) is fixedly connected with an upper guide pillar (12), the bottom of the limiting plate (7) is provided with an object placing groove (13), the bottom end of the upper guide pillar (12) penetrates through the limiting plate (7), the object placing groove (13) and extends to the inside of the object placing groove (13), the bottom of the upper guide pillar (12) is located below the lower guide pillar (14) fixedly connected with the bottom of the limiting plate (7), the top of the limiting plate (7) is located below the arc-shaped groove (15), and the top end of the lower guide pillar (14) penetrates through the limiting plate (7) and the arc-shaped groove (15) and extends to the inside of the arc-shaped groove (15).

3. The circuit breaker of claim 1, wherein: the connecting mechanism (8) comprises a sliding block (81), a fixing groove (82) is formed in the sliding block (81), a fixing sleeve (83) is fixedly connected to the inside of the fixing groove (82), a connecting column (84) is fixedly connected to the inner surface of the fixing sleeve (83), a first conducting strip (85) is fixedly connected to the bottom end of the connecting column (84), a first conducting sleeve (86) is slidably connected to the lower portion of the surface of the connecting column (84), a second conducting strip (87) is fixedly connected to the bottom end of the upper guide column (12), and a second conducting sleeve (88) is slidably connected to the lower portion of the surface of the upper guide column (12).

4. The circuit breaker of claim 3, wherein: the top and the bottom of sliding block (81) respectively with two limiting plate (7) relative one side sliding connection, the internal surface of first conductive sleeve (86) and the both sides sliding connection of first conducting strip (85), the internal surface of second conductive sleeve (88) and the both sides sliding connection of second conducting strip (87).

5. The circuit breaker of claim 1, wherein: actuating mechanism (6) are including dwang (61), the front of dwang (61) is rotated and is connected with axis of rotation (62), the one end of axis of rotation (62) runs through dwang (61) and extends to the outside of dwang (61), one end of axis of rotation (62) and one side fixed connection of cutout shell (1) inner wall, the inside of dwang (61) has been seted up and has been put thing chamber (63), the right-hand member swing joint of dwang (61) has connecting rod (64), the left end of connecting rod (64) runs through dwang (61) and extends to the inside of dwang (61), the left end fixedly connected with sliding plate (65) of dwang (61), the surface cover of connecting rod (64) is equipped with spring (66).

6. The circuit breaker of claim 5, wherein: two sides of the sliding plate (65) are in sliding connection with two sides of the inner wall of the article placing cavity (63), and one end of the spring (66) is fixedly connected with one side of the sliding plate (65).

7. The circuit breaker of claim 5, wherein: the left end fixedly connected with catch bar (16) of dwang (61), rotation groove (17) have been seted up on the right side of catch block (9), the internal surface of catch bar (16) is rotated with the surface of slide bar (11) and is connected.

8. The circuit breaker of claim 5, wherein: the right end of the connecting rod (64) is fixedly connected with a lantern ring (18), and the inner surface of the lantern ring (18) is rotatably connected with the outer surface of the short rod (5).