CN217280610U

CN217280610U - Contactor capable of being started in emergency

Info

Publication number: CN217280610U
Application number: CN202221038402.7U
Authority: CN
Inventors: 金定坚
Original assignee: Zhejiang Libu Electric Technology Co ltd
Current assignee: Zhejiang Libu Electric Technology Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-08-23
Anticipated expiration: 2032-04-28

Abstract

The utility model provides a contactor capable of being started in emergency, which belongs to the technical field of contact angles and comprises a bottom plate, wherein an emergency starting part is arranged on the bottom plate, contactors are arranged on two sides of the emergency starting part, the contactor comprises a moving contact and a static contact, and the emergency starting part comprises a transmission component and a driving component which are arranged on two sides of the contactor and linked with the moving contact; meanwhile, the structure that a turntable arranged in the emergency starting component is matched with a rotating arm and two groups of elastic pieces with energy storage function are added, so that the speed and the stability of opening and closing are greatly improved; in addition, still be provided with dual spacing and prevent that the pivot transition is rotatory to lead to the device to damage.

Description

Contactor capable of being started in emergency

Technical Field

The utility model relates to a contactor technical field, in particular to contactor that can emergent start.

Background

The contactor is an electric control device, is an electric appliance which enables controlled quantity to generate predetermined step change in an electric output circuit when the change of input quantity (excitation quantity) meets the specified requirement, has an interaction relation between a control system (also called an input loop) and the controlled system (also called an output loop), is usually applied to an automatic control circuit, is an 'automatic switch' which uses small current to control the operation of large current, and therefore plays the roles of automatic regulation, safety protection, circuit conversion and the like in the circuit.

When the existing contactor type emergency starting device is used, the contactor contacts are closed by magnetic force generated when the electromagnetic coil is electrified under the condition that the contactor contacts normally work, and the contacts are disconnected by spring force after the coil is electrified. However, the control circuit is prone to malfunction due to the fact that the control circuit is prone to being wetted and dust in the air is prone to polluting after being placed for a long time, the electromagnetic coil cannot work normally, the contactor cannot be started and closed in an emergency state, and safety accidents are prone to being caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide a contactor that can emergent start.

The utility model discloses the technical scheme who takes as follows: the contactor comprises a moving contact and a fixed contact, the emergency starting component comprises a transmission component and a driving component, the transmission component and the driving component are arranged on two sides of the contactor and are linked with the moving contact, and the driving component is provided with a closing state and a breaking state, wherein the moving contact is electrically connected with the fixed contact, and the moving contact is separated from the fixed contact.

Drive assembly is including setting up casing and pivot in the middle of two contactors, the middle part is equipped with the support that slides in the casing, pivot one end is passed the support that slides just is equipped with first gear, the casing bottom is equipped with first carousel, first carousel both sides all be equipped with the transmission shaft with the drive assembly linkage, the meshing of first gear both sides has the second gear, the second gear sets up on the first carousel, first carousel both sides with be connected with first carousel between the support that slides, it is rotatory that gear engagement makes first carousel rotatory is passed through to the pivot, first carousel rotates and makes first carousel drive displacement about the support that slides.

An elastic piece is arranged on the sliding support along the displacement direction of the sliding support, and two ends of the elastic piece respectively abut against the sliding support and the shell.

The elastic pieces are two and are symmetrically arranged by taking the rotating shaft as a center.

The casing is including controlling first casing and the second casing that sets up, first casing still is equipped with the third casing with second casing upper portion, the third casing with all be equipped with the mounting groove that is used for installing the elastic component on the support that slides.

First casing and second shells inner wall all are equipped with and are used for right first carousel carries out the first spacing groove of rotation spacing.

The rotating shaft is provided with a rotating limiting component near the first gear, the rotating limiting component is used for limiting the rotatable interval of the rotating shaft, the rotating limiting component comprises a first rotating limiting part and a second rotating limiting part, two sides of the first rotating limiting part are fixed on the inner wall of the shell, the rotating shaft can rotate relative to the first rotating limiting part, the second rotating limiting part and the rotating shaft rotate synchronously, and the first rotating limiting part can limit the rotating range of the second rotating limiting part.

The rotating shaft is provided with a first connecting portion connected with a first rotating limiting part and a second connecting portion connected with a second rotating limiting part, the first connecting portion is a cylinder, the second connecting portion is a cuboid, the first rotating limiting part is close to the end face of the first gear and is provided with a second limiting groove, the second rotating limiting part is located in the second limiting groove, and the second rotating limiting part is in the shape of an oval arc end with two smaller sides cut off.

The transmission assembly comprises second rotating discs arranged on two sides of each contactor, second rotating arms connected with the second rotating discs, transmission parts connected with the second rotating arms and limiting parts arranged on two sides of the transmission parts, the second rotating discs are installed on the transmission shaft and rotate synchronously with the transmission shaft, the transmission parts are enabled to move up and down by rotating the second rotating discs through the second rotating arms, and the transmission parts are linked with the movable contacts.

First abutting slopes are symmetrically arranged on two sides of the transmission part, and second abutting slopes are arranged on the limiting parts on two sides in the moving path of the transmission part.

The utility model has the advantages as follows: the utility model discloses set up emergent starting element and make both sides contactor synchronous combined floodgate, solved the problem that the contactor can't be combined floodgate because of magnetism mode failure brings, be applicable to the emergent occasion of fire control, the practicality is strong; meanwhile, the structure that a turntable arranged in the emergency starting component is matched with a rotating arm and two groups of elastic parts with energy storage function are added, so that the speed and the stability of opening and closing are greatly improved; in addition, still be provided with dual spacing and prevent that the pivot transition is rotatory to lead to the device to damage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a first schematic view of a part of the structure of the present invention;

FIG. 3 is a second schematic view of the partial structure of the present invention;

fig. 4 is a schematic view of a drive assembly according to the present invention;

fig. 5 is a schematic view of the present invention;

in the figure, 1-base plate, 2-emergency starting part, 3-contactor, 4-transmission component, 41-second rotary plate, 42-second rotary arm, 43-transmission component, 431-second pressing slope, 44-limiting component, 441-second pressing slope, 5-driving component, 501-shell, 5011-first shell, 5012-second shell, 5013-third shell, 5014-mounting groove, 5015-first limiting groove, 502-rotary shaft, 5021-first connecting part, 5022-second connecting part, 503-sliding bracket, 504-first gear, 505-first rotary plate, 506-transmission shaft, 507-second gear, 508-first rotary arm, 509-elastic component, 510-rotation limiting component, 5101-first rotation limiting component, 5102-a second rotation limiting member, 5103-a second limiting groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.

The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the directional and positional terms used are intended to illustrate and understand the present invention and are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, for the present invention provides an embodiment:

the contactor capable of being started in an emergency mode comprises a base plate 1, an emergency starting component 2 is arranged on the base plate, contactors 3 are assembled on two sides of the emergency starting component 2, each contactor 3 comprises a moving contact and a fixed contact, the emergency starting component 2 comprises a transmission component 4 and a driving component 5, the transmission component 4 and the driving component 5 are arranged on two sides of each contactor 3 and are linked with the moving contacts, and the driving component 5 has a switching-on state and a switching-off state, wherein the moving contacts are electrically connected with the fixed contacts, and the switching-off state enables the moving contacts to be separated from the fixed contacts. Make both sides contactor 3 synchronous combined floodgate through setting up emergent starting part 2, solved the problem that the contactor can't be combined floodgate because of magnetism mode inefficacy brings, be applicable to the emergent occasion of fire control, the practicality is strong.

In this embodiment, the driving assembly 5 includes a housing 501 and a rotating shaft 502 disposed between two contactors, a sliding bracket 503 is disposed in the middle of the housing 501, one end of the rotating shaft 502 passes through the sliding bracket 503 and is provided with a first gear 504, a first rotating disc 505 is disposed at the bottom of the housing 501, a transmission shaft 506 is disposed on both sides of the first rotating disc 505 to be linked with the transmission assembly 4, a second gear 507 is engaged on both sides of the first gear 504, wherein the first gear 504 and the second gear 507 are bevel gears, the second gear 507 is disposed on the first rotating disc 505 and rotates synchronously, a first rotating arm 508 is connected between both sides of the first rotating disc 505 and the sliding bracket 503, during use, the rotating shaft 502 is rotated to rotate the first rotating disc 505 through gear engagement, the first rotating arm 508 is connected to a flange of the first rotating disc 505, and the first rotating arm 508 pushes the sliding bracket 503 to move up and down along with the rotation of the first rotating disc 505, by adopting the structure, the first rotating arm 508 pushes the sliding support 503 to move upwards and pass through the highest point, and the sliding support falls back quickly after passing through the highest point every time, so that the rapid opening and closing is realized. In order to facilitate assembly and machining, in this embodiment, as shown in fig. 4, the first rotating disk 505 is divided into two parts and then connected by a screw.

Furthermore, an elastic member 509 is arranged on the sliding support 503 along the displacement direction thereof, two ends of the elastic member 509 respectively abut against the sliding support 503 and the housing 501, the elastic member 509 is a cylindrical spring, when the first rotating arm 508 pushes the sliding support 503 to move upwards, the cylindrical spring stores energy through compression, after passing through the highest point, the energy storage state of the cylindrical spring is broken, the energy stored by the cylindrical spring is released instantaneously, so that the first rotating arm 508 pulls the sliding support 503 to move downwards quickly, the switching-on and switching-off speed is further increased, two contactors can be switched on simultaneously, and the switching-on time difference and instability caused by manual operation are avoided.

Further, elastic component 509 is two and uses pivot 502 sets up as central symmetry, sets up two sets of elastic component 509 simultaneously and can realize that the branch soon closes, and divide closing speed is faster, and the column spring does not require greatly to installation space, can install in the space of various sizes, and stable in structure is reliable and the suitability is stronger.

Further, the housing 501 comprises a first housing 5011 and a second housing 5012 which are arranged on the left and right, and a third housing 5013 is further arranged on the upper portions of the first housing 5011 and the second housing 5012 to wrap the driving mechanism 5 in the housing, so that sundries are prevented from entering and affecting the action of the mechanism; the third housing 5013 and the sliding support 503 are both provided with mounting grooves 5014 for mounting the elastic member 509, so that the elasticity 509 is prevented from being disordered at will, and the stability of the device is improved; the inner walls of the first housing 5011 and the second housing 5012 are further provided with a limiting groove for fixing the rotating shaft 502.

Further, the inner walls of the first housing 5011 and the second housing 5012 are both provided with a first limit groove 5015 for limiting the rotation of the first rotating disc 505, so as to prevent the device from being damaged due to the excessive rotation of the first rotating disc 505.

Furthermore, a rotation limiting component 510 is disposed on the rotating shaft 502 near the first gear 504, the rotation limiting assembly 510 is used for limiting a rotatable range of the rotating shaft 502, the rotation limiting assembly 510 includes a first rotation limiting member 5101 and a second rotation limiting member 5102, both sides of the first rotation limiting member 5101 are fixed on the inner wall of the housing 501, the rotating shaft 502 can rotate relative to the first rotation limiting member 5101, the second rotation limiting member 5102 and the rotating shaft 502 rotate synchronously, the first rotation limiting member 5101 can limit the rotation range of the second rotation limiting member 5102, the first rotation limiting member 5101 and the second rotation limiting member 5102 are made of metal materials, and are limited only by the first limiting groove 5015 on the plastic shell, the device is damaged when the rotation force is too large, and the rotation limiting assembly 510 is arranged to further protect the device, and the rotation range is generally set to be 0-90 degrees.

In this embodiment, the specific structure of the rotation limiting assembly 510 is as follows: the rotating shaft 502 is provided with a first connecting portion 5021 connected with the first rotation limiting member 5101 and a second connecting portion 5022 connected with the second rotation limiting member 5102, the first connecting portion 5021 is a cylinder, the second connecting portion 5022 is a cuboid, a circular connecting hole is correspondingly formed in the middle of the first rotation limiting member 5101, and a square connecting hole is correspondingly formed in the middle of the second rotation limiting member 5102.

The end surface of the first rotation limiting part 5101, which is close to the first gear 504, is provided with a second limiting groove 5103, the second rotation limiting part 5102 is located in the second limiting groove 5103, and the second rotation limiting part 5102 is in the shape of an oval arc end with two smaller cut-off sides, so that the second rotation limiting part 5102 is blocked by the side wall of the second limiting groove 5103 after the second limiting groove 5103 rotates for a certain angle, and transitional rotation is avoided.

In this embodiment, the transmission assembly 4 includes a second rotating disc 41 disposed on both sides of each contactor 3, a second rotating arm 42 connected to the second rotating disc 41, a transmission member 43 connected to the second rotating arm 42, and limiting members 44 disposed on both sides of the transmission member 43, the second rotating discs 41 are both mounted on the transmission shaft 506 and rotate synchronously with the transmission shaft 506, the transmission member 43 is moved up and down by rotating the second rotating disc 41 through the second rotating arm 42, the transmission member 43 is linked with the movable contact, first abutting slopes 431 are symmetrically disposed on both sides of the transmission member 43, and second abutting slopes 441 are disposed on the limiting members 44 on both sides in a moving path of the transmission member 43. Wherein, a triangular or arc-shaped protrusion is symmetrically arranged on both sides of the transmission member 43, the first abutting slope 431 is arranged on the protrusion, a triangular or arc-shaped protrusion is also arranged on one side of the limiting member 44 facing the transmission member 43, the second abutting slope 441 is arranged on the protrusion, and when the transmission member 43 moves up and down and passes through the limiting member 44, a certain resistance is applied, so as to improve the operability of the device.

Further, a spring having a buffering function is provided between the stoppers 44 provided on both sides of the transmission member 43 and the housing of the side wall of the contactor 5.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. The contactor capable of being started in emergency comprises a base plate (1), wherein an emergency starting component (2) is arranged on the base plate, contactors (3) are assembled on two sides of the emergency starting component (2), the contactors (3) comprise moving contacts and static contacts, and the emergency starting component (2) is characterized by comprising transmission components (4) and driving components (5) which are arranged on two sides of the contactors (3) and linked with the moving contacts, and the driving components (5) are provided with a switching-on state and a switching-off state, wherein the moving contacts are electrically connected with the static contacts, and the switching-off state is separated from the static contacts.

2. The emergency starting contactor according to claim 1, wherein the driving assembly (5) comprises a housing (501) and a rotating shaft (502) arranged between the two contactors, a sliding support (503) is arranged in the middle of the housing (501), one end of the rotating shaft (502) passes through the sliding support (503) and is provided with a first gear (504), a first rotating disc (505) is arranged at the bottom of the housing (501), a transmission shaft (506) is arranged on each of two sides of the first rotating disc (505) and is linked with the transmission assembly (4), a second gear (507) is meshed with each of two sides of the first gear (504), the second gear (507) is arranged on the first rotating disc (505), a first rotating arm (508) is connected between each of two sides of the first rotating disc (505) and the sliding support (503), and the rotating shaft (502) is rotated by meshing of the gears to rotate the first rotating disc (505), the first rotating disc (505) rotates to enable the first rotating arm (508) to drive the sliding support (503) to move up and down.

3. An emergency starting contactor according to claim 2, wherein said sliding support (503) is provided with an elastic member (509) along the displacement direction thereof, and two ends of said elastic member (509) respectively abut against said sliding support (503) and said housing (501).

4. An emergency actuatable contactor as claimed in claim 3, wherein said resilient members (509) are two and are arranged symmetrically about said shaft (502).

5. The contactor according to claim 4, wherein the housing (501) comprises a first housing (5011) and a second housing (5012) which are arranged left and right, a third housing (5013) is further arranged on the upper portion of the first housing (5011) and the upper portion of the second housing (5012), and a mounting groove (5014) for mounting the elastic member (509) is arranged on each of the third housing (5013) and the sliding support (503).

6. An emergency actuatable contactor as claimed in claim 5, wherein said first housing (5011) and said second housing (5012) are provided with first limiting grooves (5015) on their inner walls for limiting the rotation of said first rotatable disk (505).

7. The contactor according to claim 2, wherein a rotation limiting component (510) is disposed on the rotating shaft (502) near the first gear (504), the rotation limiting component (510) is used for limiting a rotatable interval of the rotating shaft (502), the rotation limiting component (510) includes a first rotation limiting component (5101) and a second rotation limiting component (5102), both sides of the first rotation limiting component (5101) are fixed on an inner wall of the housing (501), the rotating shaft (502) can rotate relative to the first rotation limiting component (5101), the second rotation limiting component (5102) rotates synchronously with the rotating shaft (502), and the first rotation limiting component (5101) can limit a rotation range of the second rotation limiting component (5102).

8. The emergency starting contactor according to claim 7, wherein a first connecting portion (5021) connected to a first rotation limiting member (5101) and a second connecting portion (5022) connected to a second rotation limiting member (5102) are disposed on the rotating shaft (502), the first connecting portion (5021) is a cylinder, the second connecting portion (5022) is a cuboid, a second limiting groove (5103) is disposed on an end surface of the first rotation limiting member (5101) close to the first gear (504), the second rotation limiting member (5102) is located in the second limiting groove (5103), and the second rotation limiting member (5102) is in the shape of an elliptical arc with two smaller cut sides.

9. An emergency actuating contactor according to claim 2, wherein the transmission assembly (4) comprises a second rotary table (41) disposed on both sides of each contactor (3), a second rotary arm (42) connected to the second rotary table (41), a transmission member (43) connected to the second rotary arm (42), and a limiting member (44) disposed on both sides of the transmission member (43), the second rotary tables (41) are mounted on the transmission shaft (506) and rotate synchronously with the transmission shaft (506), the transmission member (43) is displaced up and down by rotating the second rotary table (41) through the second rotary arm (42), and the transmission member (43) is linked with the movable contact.

10. An emergency actuating contactor according to claim 9, wherein the driving member (43) is symmetrically provided with first pressing slopes (431) on both sides, and the limiting members (44) on both sides are provided with second pressing slopes (441) on the moving path of the driving member (43).