CN220439479U

CN220439479U - Three-phase isolating switch

Info

Publication number: CN220439479U
Application number: CN202322017632.6U
Authority: CN
Inventors: 余平阳; 李兆粉
Original assignee: Jiangsu Yunt Electrical Co ltd
Current assignee: Jiangsu Yunt Electrical Co ltd
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-02-02
Anticipated expiration: 2033-07-28

Abstract

The utility model relates to a three-phase isolating switch, which comprises a knob, a cover plate and a box body, wherein the cover plate seals the box body, the knob penetrates through the cover plate and is arranged in the box body, the knob also comprises a knob rod and a screw rod, the knob rod is a square cylinder, the knob rod is inserted into a square hole of the screw rod, a wire holder and a contact are also arranged in the box body, the screw rod is arranged in the middle of the wire holder, screw threads are arranged on the outer surface of the screw rod, and the screw rod controls the on-off of the contact in the wire holder through rotation.

Description

Three-phase isolating switch

Technical Field

The utility model relates to the field of switches, in particular to a three-phase isolating switch.

Background

An Isolating switch (Isolating switch) is a switching device mainly used for Isolating a power supply, switching operation and switching on and off a small current circuit, and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have an insulation distance and an obvious disconnection mark which meet the specified requirements; in the closed position, the switching device is capable of carrying both current under normal loop conditions and current under abnormal conditions (e.g., short circuit) for a prescribed period of time.

Most isolating switches at present adopt a poking rod type knob, so that the isolating switch is easy to bear excessive force and generate sparks when in use, the structure is easy to damage, and the service life of the isolating switch is also difficult to guarantee.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a three-phase isolating switch.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a three-phase isolator, includes knob, apron and box body, the apron will the box body is sealed, the knob passes the apron sets up in the box body, the knob is still including knob pole and hob, the knob pole is square cylinder, and the knob pole inserts and establishes in the square hole of hob, still be provided with connection terminal and contact in the box body, the hob sets up in the middle of the connection terminal, the hob surface is provided with the helix, and the hob passes through the rotation control the break-make of contact in the connection terminal.

Furthermore, the upper part of the screw rod is also provided with a first limit spring in a matching way, the first limit springs are arranged on two sides of the screw rod in pairs, and the first limit springs are clamped in the cover plate.

Further, a second transmission block and a top block are arranged between the first limit spring and the screw rod, the top block is in a quadrangle star shape, and the top block is fixedly sleeved on the outer surface of the screw rod;

the transmission block II is arranged between the jacking block and the limiting spring I, one end of the transmission block II is fixedly connected with the limiting spring I, and the other end of the transmission block II is in close contact with the jacking block.

Further, a wire holder and a wire hole are further formed in the box body, and the wire holder and the wire hole are arranged around the screw rod.

Further, a first transmission block is further arranged between the wire holder and the screw rod, the first transmission block is a concave block, the screw rod is clamped at the concave position of the first transmission block, convex angles are further arranged in pairs on the first transmission block, and the convex angles are clamped in the screw lines of the screw rod.

Further, a first contact is further arranged in the wire holder, the first contacts are distributed in an upper row and a lower row, a shell of the first contact is connected with the first transmission block, and the first contact moves up and down along with the first transmission block.

Further, the first contact is also provided with a first wiring part in a matched mode, and the first contact moves up and down to control the first contact and the beginning end of the first wiring part; the bottom of the first contact is also provided with a first reset spring.

Further, a second contact is further arranged on the first transmission block, a second reset spring is also arranged at the bottom of the second contact, and the second contact moves along with the movement of the first transmission block.

Further, a second wiring portion is further arranged at the wiring hole, and the second wiring portion is in contact with the second contact.

Further, a limiting block is further arranged at the bottom of the first transmission block concave part, and the limiting block is located right below the screw rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. compared with the traditional deflector rod, the control device has the advantages that the start of the contact is controlled in the mode that the screw rod rotates up and down, the stress is more uniform, the control device is milder when the contact is controlled to be opened and closed, the spark generated in the interior due to excessive stress is avoided, and the potential safety hazard caused by the traditional deflector rod is solved.

2. The utility model has compact structure and even contact distribution, can effectively avoid the phenomena of local excessive stress and local part damage caused by too concentrated contact distribution, simultaneously improves the rated current level of the isolating switch and expands the application range thereof.

3. The shell of the utility model adopts a waterproof and dustproof sealing mode, achieves IP65 level waterproof, effectively avoids the situation of water and dust entering the inside of the shell, and greatly improves the reliability and service life of the product.

Drawings

FIG. 1 is an overall assembly effect diagram of the present utility model;

FIG. 2 is a partial block diagram of the present utility model;

FIG. 3 is a partial block diagram of the present utility model;

FIG. 4 is a partial block diagram of the present utility model;

FIG. 5 is a partial block diagram of the present utility model;

fig. 6 is a partial structural view of the present utility model.

In the figure: 1. knob, 11, knob rod, 2, cover plate, 3, box body, 4, wire holder, 41, wire hole, 42, transmission block number one, 43, first reset spring, 44, first contact, 45, wire connection part number one, 46, a second contact, 47, a second return spring, 48, a limiting block, 49, a second wiring part, 5, a screw rod, 51, a first limiting spring, 52, a second transmission block, 53 and a top block.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As shown in fig. 1-6.

The utility model provides a three-phase isolator, includes knob 1, apron 2 and box body 3, apron 2 will box body 3 is sealed, knob 1 passes apron 2 sets up in the box body 3, knob 1 is still including knob pole 11 and hob 5, knob pole 11 is square cylinder, and knob pole 11 inserts and establishes in hob 5's square hole, still be provided with connector 4 and contact in the box body 3, hob 5 sets up in the middle of the connector 4, hob 5 surface is provided with the helix, and hob 5 is through the rotation control the break-make of contact in the connector 4.

Further, a first limit spring 51 is also arranged on the upper portion of the screw rod 5 in a matching way, the first limit springs 51 are arranged on two sides of the screw rod 5 in pairs, the first limit springs 51 are clamped in the cover plate 2, a second transmission block 52 and a top block 53 are also arranged between the first limit springs 51 and the screw rod 5, the top block 53 is in a quadrangle star shape, and the top block 53 is fixedly sleeved on the outer surface of the screw rod 5; a second transmission block 52 is arranged between the top block 53 and the first limit spring 51, one end of the second transmission block 52 is fixedly connected with the first limit spring 51, and the other end of the second transmission block 52 is in close contact with the top block 53.

Further, the position of the screw rod 5 can be effectively fixed by the aid of the limiting springs and the ejector blocks 53, the stability of the screw rod 5 is improved, and meanwhile, the limiting springs have deformation capacity and can bring a certain shock resistance to the screw rod 5.

Further, a wire holder 4 and a wire hole 41 are further provided in the box body 3, and the wire holder 4 and the wire hole 41 are disposed around the screw rod 5.

Further, a first transmission block 42 is further arranged between the wire holder 4 and the screw rod 5, the first transmission block 42 is a concave block, the screw rod 5 is clamped in a concave position of the first transmission block 42, the first transmission block 42 is further provided with convex angles in pairs, the convex angles are clamped in spiral lines of the screw rod 5, a first contact 44 is further arranged in the wire holder 4, the first contact 44 is distributed in two rows up and down, a shell of the first contact 44 is connected with the first transmission block 42, the first contact 44 moves up and down along with the first transmission block 42, the first contact 44 is further provided with a first wire connection part 45 in a matched mode, and the first contact 44 moves up and down to control the first contact 44 and the beginning of the first wire connection part 45; the bottom of the first contact 44 is further provided with a first return spring 43.

Further, a second contact 46 is further provided on the first transmission block 42, a second return spring 47 is also provided at the bottom of the second contact 46, the second contact 46 moves along with the movement of the first transmission block 42, a second wire connection portion 49 is further provided at the wire connection hole 41, and the second wire connection portion 49 is in contact with the second contact 46.

Further, a limiting block 48 is further arranged at the bottom of the recess of the first transmission block 42, and the limiting block 48 is located right below the screw rod 5.

Furthermore, compared with the traditional deflector rod, the control device has the advantages that the start of the contact is controlled in the mode that the screw rod 5 rotates up and down, the stress is more uniform, the control device is milder when the contact is controlled to be opened, the spark generated in the interior due to excessive stress is avoided, and the potential safety hazard caused by the traditional deflector rod is solved.

Furthermore, the utility model has compact structure and even contact distribution, can effectively avoid the phenomena of local excessive stress and local part damage caused by too concentrated contact distribution, simultaneously improves the rated current level of the isolating switch and expands the application range of the isolating switch.

Furthermore, the waterproof and dustproof sealing mode is adopted for the shell, so that IP65 level waterproof is achieved, the situation that water and dust enter the shell is effectively avoided, and the reliability and the service life of the product are greatly improved.

Further, when the rotary knob 1 is rotated clockwise, the second transmission block 52 moves upwards along the screw rod 5, contacts are contacted with each other, a passage is formed, the second transmission block 52 moves downwards along the screw rod 5 when the rotary knob 1 is rotated anticlockwise, contacts are disconnected with each other, and a circuit is disconnected.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present utility model has been described in terms of the preferred embodiments, the preferred embodiments are not limited to the above embodiments, and various modifications and changes can be made by one skilled in the art without departing from the spirit and scope of the utility model, and the scope of the utility model is defined by the appended claims.

Claims

1. A three-phase isolating switch, characterized in that: including knob, apron and box body, the apron will the box body is sealed, the knob passes the apron sets up in the box body, the knob is still including knob pole and hob, the knob pole is square cylinder, and the knob pole inserts and establishes in the square hole of hob, still be provided with connection terminal and contact in the box body, the hob sets up in the middle of the connection terminal, the hob surface is provided with the spiral line, and the hob passes through rotation control the break-make of contact in the connection terminal.

2. The three-phase isolation switch of claim 1, wherein: the upper portion of hob still supporting is provided with spacing spring No. one, no. one spacing spring sets up in pairs the both sides of hob, and No. one spacing spring card is established in the apron.

3. The three-phase isolation switch of claim 2, wherein: a second transmission block and a top block are further arranged between the first limit spring and the screw rod, the top block is in a quadrangle star shape, and the top block is fixedly sleeved on the outer surface of the screw rod;

4. The three-phase isolation switch of claim 1, wherein: the box body is also provided with a wire holder and a wire hole, and the wire holder and the wire hole are arranged around the screw rod.

5. The three-phase isolation switch of claim 4, wherein: the wire holder with still be provided with a drive block between the hob, a drive block is the spill piece, the hob card is established a drive block's pit, a drive block still is provided with the salient angle in pairs, the salient angle card is in the spiral line of hob.

6. The three-phase isolation switch of claim 5, wherein: the wire holder is internally provided with first contacts which are distributed in an upper row and a lower row, the shell of the first contacts is connected with the first transmission block, and the first contacts move up and down along with the first transmission block.

7. The three-phase isolation switch of claim 6, wherein: the first contact is also provided with a first wiring part in a matched mode, and the first contact moves up and down to control the first contact and the open end of the first wiring part; the bottom of the first contact is also provided with a first reset spring.

8. The three-phase isolation switch of claim 5, wherein: the first transmission block is also provided with a second contact, the bottom of the second contact is also provided with a second reset spring, and the second contact moves along with the movement of the first transmission block.

9. The three-phase isolation switch of claim 8, wherein: and a second wiring part is further arranged at the wiring hole and is contacted with the second contact.

10. The three-phase isolation switch of claim 5, wherein: the bottom of transmission piece depressed part still is provided with the stopper, the stopper is located under the hob.