CN216597387U

CN216597387U - Double-core electromagnetic safety switch

Info

Publication number: CN216597387U
Application number: CN202122641309.7U
Authority: CN
Inventors: 郭蒙恩; 郭恩会; 李铨明
Original assignee: Zhongshan Severman Electronic Technology Co ltd
Current assignee: Zhongshan Severman Electronic Technology Co ltd
Priority date: 2021-10-30
Filing date: 2021-10-30
Publication date: 2022-05-24
Anticipated expiration: 2031-10-30

Abstract

The utility model discloses a double-movement electromagnetic safety switch, which comprises a shell, wherein a key assembly and an electromagnet assembly are arranged in the shell, the key assembly is provided with an operating rod, the electromagnet assembly is provided with a movable iron core, the key assembly and the electromagnet assembly are arranged in parallel, the operating rod is connected with a first movement switch, the movable iron core is connected with a second movement switch, a manual control linkage mechanism is arranged between the operating rod and the movable iron core, and the manual control linkage mechanism can manually unlock the linkage of the operating rod and the movable iron core; the first machine core switch and the second machine core switch are respectively electrically connected with an external load, the first machine core switch and the second machine core switch are respectively electrically connected with three groups of loads, and the key assembly and the electromagnet assembly respectively control the on-off of the first machine core switch and the second machine core switch, so that the whole double-machine-core electromagnetic safety switch can control six groups of loads, meets more diversified control requirements and is applied to more mechanical control fields.

Description

Double-core electromagnetic safety switch

Technical Field

The utility model relates to the technical field of safety switches, in particular to a double-movement electromagnetic safety switch with a simple structure.

Background

In electromagnetic safety switches, a control device is basically understood to be a device which, for a specific installation, always operates below a nominal value (or at the same value) or within its safe operating range. The electromagnetic safety switch is composed of two linked parts: the switch comprises a switch body and an operating part of the switch, wherein the switch body is generally an electromagnet assembly additionally connected with a power supply and a key assembly for controlling the mechanical action of the electromagnet assembly; the switch operating part is also a machine core, which is a part for directly controlling the load to be electrified or not, a movable contact and two static contacts are arranged in the machine core, the two static contacts are respectively connected with the load, the movable contact is linked with the mechanical part of the machine core, and a movable iron core of the electromagnet assembly is linked with the mechanical part of the machine core, so that the machine core is controlled to be electrified or not, and when the movable contact is lapped with the two static contacts, the load is electrified, so that the structure is simple and the use is wide.

The existing electromagnetic safety switch generally only has one machine core, can only control whether two groups of loads are electrified or not, cannot control more loads simultaneously, and has a small application range.

Therefore, those skilled in the art are dedicated to develop a dual-core electromagnetic safety switch capable of controlling six groups of loads.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention provides a dual-core electromagnetic safety switch capable of controlling six groups of loads.

In order to achieve the purpose, the utility model provides a double-movement electromagnetic safety switch which comprises a shell, wherein a key assembly and an electromagnet assembly are arranged in the shell, the key assembly is provided with an operating rod, the electromagnet assembly is provided with a movable iron core, the key assembly and the electromagnet assembly are arranged in parallel, the operating rod is connected with a first movement switch, the movable iron core is connected with a second movement switch, and a manual control linkage mechanism is arranged between the operating rod and the movable iron core; the first movement switch and the second movement switch are respectively electrically connected with the outside.

The first movement switch comprises a first movement switch shell, a first push rod, a first movable contact piece and two first static contacts are mounted on the first movement switch shell, the first movable contact piece is fixedly connected with the first push rod, two ends of the first movable contact piece are respectively opposite to the first static contacts, the first static contacts are electrically connected with the outside, and one end of the first push rod is connected with one end of the operating rod.

The first push rod is integrally provided with a forward first connecting column, a forward second connecting column and a reverse first connecting column from front to back, the number of the first movable contact pieces is three, the first movable contact pieces are respectively installed on the forward first connecting column, the forward second connecting column and the reverse first connecting column, and three groups of the two first stationary contacts and three groups of the first movable contact pieces are respectively arranged correspondingly.

The second movement switch comprises a second movement switch shell, a second push rod, a second movable contact piece and two second static contacts are mounted on the second movement switch shell, the second movable contact piece is fixedly connected with the second push rod, two ends of the second movable contact piece are respectively opposite to the second static contacts, the second static contacts are electrically connected with the outside, and one end of the first push rod is connected with one end of the operating rod.

The second push rod is integrally provided with a forward third connecting column, a forward fourth connecting column and a reverse second connecting column from front to back, the number of the second movable contact pieces is three, the second movable contact pieces are respectively arranged on the forward third connecting column, the forward fourth connecting column and the reverse second connecting column, and three groups of the two second stationary contacts and three groups of the second movable contact pieces are respectively arranged corresponding to each other.

The manual control linkage mechanism comprises an L-shaped connecting rod, a clutch transverse plate and a knob, the middle of the long edge of the L-shaped connecting rod is hinged with the shell, a first linkage hole is formed in the bottom of the second push rod, and a first linkage column inserted into the first linkage hole is arranged on the short edge of the L-shaped connecting rod; a second linkage hole is formed in one end of the long side of the L-shaped connecting rod, a second linkage column inserted into the second linkage hole is arranged at one end of the clutch transverse plate, and a clutch bayonet capable of abutting against the operating rod is arranged at the other end of the clutch transverse plate; the knob is hinged to the shell, and a stop plate which stretches into the shell and is located on one side of the other end of the long edge of the L-shaped connecting rod is arranged at the rear end of the knob.

The middle part of the operating rod is provided with a limiting table which is radially and outwards protruded, and when the clutch bayonet is clamped on the operating rod, the end surface of the limiting table is abutted against the side surface of the clutch transverse plate.

The utility model has the beneficial effects that: the utility model discloses a double-movement electromagnetic safety switch, which comprises a shell, wherein a key assembly and an electromagnet assembly are arranged in the shell, the key assembly is provided with a control rod, the electromagnet assembly is provided with a movable iron core, the key assembly and the electromagnet assembly are arranged in parallel, the control rod is connected with a first movement switch, the movable iron core is connected with a second movement switch, a manual control linkage mechanism is arranged between the control rod and the movable iron core, and the manual control linkage mechanism can manually unlock the linkage of the control rod and the movable iron core; the first machine core switch and the second machine core switch are respectively electrically connected with an external load, the first machine core switch and the second machine core switch are respectively electrically connected with three groups of loads, and the key assembly and the electromagnet assembly respectively control the on-off of the first machine core switch and the second machine core switch, so that the whole double-machine-core electromagnetic safety switch can control six groups of loads, meets more diversified control requirements and is applied to more mechanical control fields.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a schematic structural view of an L-shaped link of the present invention;

FIG. 4 is a schematic view of a partial structure of the present invention;

FIG. 5 is a schematic diagram of a first movement switch of the present invention;

FIG. 6 is an exploded view of a first switch of the present invention;

fig. 7 is a schematic structural view of a second movement switch of the present invention;

fig. 8 is an exploded view of a second deck switch of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 8, a dual-core electromagnetic safety switch includes a housing 1, a key assembly 2 and an electromagnet assembly 3 are installed in the housing 1, the key assembly 2 is provided with a manipulating rod 21, the electromagnet assembly is provided with a movable iron core 31, the key assembly 2 and the electromagnet assembly 3 are arranged in parallel, the manipulating rod 21 is connected with a first core switch 4, the movable iron core 31 is connected with a second core switch 5, and a manual control linkage mechanism 6 is arranged between the manipulating rod 21 and the movable iron core 31; the first machine core switch 4 and the second machine core switch 5 are respectively electrically connected with the outside, and the manual control linkage mechanism can manually unlock the linkage of the operating rod and the movable iron core; the first machine core switch and the second machine core switch are respectively electrically connected with an external load, the first machine core switch and the second machine core switch are respectively electrically connected with three groups of loads, and the key assembly and the electromagnet assembly respectively control the on-off of the first machine core switch and the second machine core switch, so that the whole double-machine-core electromagnetic safety switch can control six groups of loads, meets more diversified control requirements and is applied to more mechanical control fields.

In this embodiment, the first movement switch 4 includes a first movement switch shell 41, a first push rod 42, a first movable contact 43 and two first stationary contacts 44 are installed on the first movement switch shell 41, the first movable contact 43 is fixedly connected with the first push rod 42, two ends of the first movable contact 43 respectively face one of the first stationary contacts 44, the first stationary contacts 44 are electrically connected with the outside, and one end of the first push rod 42 is connected with one end of the operation rod 21; the first push rod 42 is integrally provided with a forward first connecting column 421, a forward second connecting column 422 and a reverse first connecting column 423 from front to back, the first movable contact 43 is provided with three first movable contacts and is respectively installed on the forward first connecting column 421, the forward second connecting column 422 and the reverse first connecting column 423, three groups of two first fixed contacts 44 are respectively arranged corresponding to the first movable contact 43, and the first push rod 42, the first movable contact 43 and the first fixed contacts 44 are all installed on the first insulating base 45.

The second movement switch 5 comprises a second movement switch shell 51, a second push rod 52, a second movable contact piece 53 and two second fixed contacts 54 are mounted on the second movement switch shell 51, the second movable contact piece 53 is fixedly connected with the second push rod 52, two ends of the second movable contact piece 53 are respectively opposite to the second fixed contacts 54, the second fixed contacts 54 are electrically connected with the outside, and one end of the first push rod 42 is connected with one end of the operating rod 21; the second push rod 52 is integrally provided with a forward third connecting column 521, a forward fourth connecting column 522 and a reverse second connecting column 523 from front to back, the second movable contact piece 53 is provided with three second movable contact pieces and is respectively installed on the forward third connecting column 521, the forward fourth connecting column 522 and the reverse second connecting column 523, three groups of two second fixed contact pieces 54 are respectively arranged corresponding to the second movable contact piece 53, and the second push rod 52, the second movable contact piece 53 and the two second fixed contact pieces 54 are all installed on the second insulating base 55.

In the present embodiment, the first stationary contact 44 and the second stationary contact 54 are connected to the electric wire of the load by bolt pressing, which is a common technique in the field of electric connection.

The manual control linkage mechanism 6 comprises an L-shaped connecting rod 61, a clutch transverse plate 62 and a knob 63, the middle part of the long side of the L-shaped connecting rod 61 is hinged with the shell 1, the bottom of the second push rod 52 is provided with a first linkage hole 524, and the short side of the L-shaped connecting rod 61 is provided with a first linkage column 611 inserted into the first linkage hole 524; a second linkage hole 612 is formed in one end of a long side of the L-shaped connecting rod 61, a second linkage column 621 inserted into the second linkage hole 612 is formed in one end of the clutch transverse plate 62, a clutch bayonet 622 capable of abutting against the side edge of the operating rod 21 is formed in the other end of the clutch transverse plate 62, a limiting table 211 protruding outwards in the radial direction is preferably arranged in the middle of the operating rod 21, and when the clutch bayonet 622 is clamped on the operating rod 21, the end face of the limiting table 211 abuts against the side face of the clutch transverse plate 62; the knob 63 is hinged on the housing 1, and a stop plate 631 extending into the housing 1 and located at one side of the other end of the long side of the L-shaped link 61 is disposed at the rear end of the knob 63.

The working principle of the utility model is as follows:

the key assembly 2 is essentially a lock, a matched key 23 is inserted into the lock, in the original non-electrified state, the knob 63 points to the locking state, at this time, the stop plate 631 is parallel to the long side of the L-shaped connecting rod 61, the clutch bayonet 622 of the clutch transverse plate 62 is separated from the operating rod 21, so that the operating rod 21 can freely move, the key 23 can be pulled out, and at this time, the movable iron core 31 is still due to power failure.

When the dual-core electromagnetic safety switch is powered on, the movable iron core 31 moves towards the movable iron core 31 under the magnetic force of the electromagnet assembly, so as to drive the long edge of the L-shaped connecting rod 61 to rotate around the hinge shaft positioned in the middle, the clutch bayonet 622 of the clutch transverse plate 62 clamps the operating rod 21, the end surface of the limiting table 211 abuts against the side surface of the clutch transverse plate 62, the operating rod 21 cannot move back and forth, the first movable contact 43 positioned on the forward first connecting column 421 and the forward second connecting column 422 is in contact with the respective corresponding first fixed contact 44 for conducting, the first movable contact 43 positioned on the reverse first connecting column 423 is separated from the corresponding first fixed contact 44 for power failure, meanwhile, the second movable contact 53 positioned on the forward third connecting column 521 and the forward fourth connecting column 522 is in contact with the respective corresponding second fixed contact 54 for conducting, and the second movable contact 53 positioned on the reverse second connecting column 523 is separated from the corresponding second fixed contact 54 for power failure, the key 23 cannot be removed at this time.

In addition, the double-movement electromagnetic safety switch is provided with emergency manual unlocking in a power-on locking state, the knob 63 points to the unlocking state, the stop plate 631 abuts against the other end of the long edge of the L-shaped connecting rod 61 at the moment, the long edge of the L-shaped connecting rod 61 is pushed to rotate around the hinge shaft positioned in the middle, the clutch bayonet 622 of the clutch transverse plate 62 is disengaged from the operating rod 21, and the key 23 can be pulled out at the moment.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a duplex movement electromagnetism safety switch, includes casing (1), install key subassembly (2) and electromagnet assembly (3) in casing (1), key subassembly (2) are provided with control pole (21), electromagnet assembly is provided with movable iron core (31), characterized by: the key assembly (2) and the electromagnet assembly (3) are arranged in parallel, the operating rod (21) is connected with a first movement switch (4), the movable iron core (31) is connected with a second movement switch (5), and a manual control linkage mechanism (6) is arranged between the operating rod (21) and the movable iron core (31); the first movement switch (4) and the second movement switch (5) are respectively electrically connected with the outside.

2. The dual-core electromagnetic safety switch of claim 1, wherein: the first movement switch (4) comprises a first movement switch shell (41), a first push rod (42), a first movable contact piece (43) and two first fixed contacts (44) are mounted on the first movement switch shell (41), the first movable contact piece (43) is fixedly connected with the first push rod (42), two ends of the first movable contact piece are respectively opposite to the first fixed contacts (44), the first fixed contacts (44) are electrically connected with the outside, and one end of the first push rod (42) is connected with one end of the operating rod (21).

3. The dual-core electromagnetic safety switch of claim 2, characterized in that: the first push rod (42) is integrally provided with a forward first connecting column (421), a forward second connecting column (422) and a reverse first connecting column (423) from front to back, the number of the first movable contact pieces (43) is three, the three first movable contact pieces are respectively installed on the forward first connecting column (421), the forward second connecting column (422) and the reverse first connecting column (423), and three groups of the two first fixed contacts (44) are respectively arranged corresponding to the first movable contact pieces (43).

4. The dual-core electromagnetic safety switch of claim 3, wherein: the second movement switch (5) comprises a second movement switch shell (51), a second push rod (52), a second movable contact piece (53) and two second fixed contacts (54) are mounted on the second movement switch shell (51), the second movable contact piece (53) is fixedly connected with the second push rod (52), two ends of the second movable contact piece are respectively opposite to the second fixed contacts (54), the second fixed contacts (54) are electrically connected with the outside, and one end of the first push rod (42) is connected with one end of the operation rod (21).

5. The dual-core electromagnetic safety switch of claim 4, wherein: the second push rod (52) is integrally provided with a forward third connecting column (521), a forward fourth connecting column (522) and a reverse second connecting column (523) from front to back, the second movable contact piece (53) is provided with three second fixed contacts (54) and three second movable contact pieces (53) which are respectively arranged on the forward third connecting column (521), the forward fourth connecting column (522) and the reverse second connecting column (523), and three groups of the second fixed contacts and three groups of the second movable contact pieces (53) are respectively arranged correspondingly.

6. The dual-core electromagnetic safety switch of claim 5, characterized in that: the manual control linkage mechanism (6) comprises an L-shaped connecting rod (61), a clutch transverse plate (62) and a knob (63), the middle of the long side of the L-shaped connecting rod (61) is hinged with the shell (1), a first linkage hole (524) is formed in the bottom of the second push rod (52), and a first linkage column (611) inserted into the first linkage hole (524) is formed in the short side of the L-shaped connecting rod (61); a second linkage hole (612) is formed in one end of the long side of the L-shaped connecting rod (61), a second linkage column (621) inserted into the second linkage hole (612) is formed in one end of the clutch transverse plate (62), and a clutch bayonet (622) capable of abutting against the operating rod (21) is formed in the other end of the clutch transverse plate; the knob (63) is hinged to the shell (1), and a stop plate (631) which extends into the shell (1) and is located on one side of the other end of the long edge of the L-shaped connecting rod (61) is arranged at the rear end of the knob (63).

7. The dual-core electromagnetic safety switch of claim 6, characterized in that: the middle part of the operating rod (21) is provided with a limiting table (211) protruding outwards in the radial direction, and when the clutch bayonet (622) is clamped on the operating rod (21), the end face of the limiting table (211) abuts against the side face of the clutch transverse plate (62).