CN219329211U

CN219329211U - Rotating shaft and rotary isolating switch

Info

Publication number: CN219329211U
Application number: CN202223371806.0U
Authority: CN
Inventors: 黄文平
Original assignee: Zhejiang Chint Electrical Electric Co ltd
Current assignee: Zhejiang Chint Electrical Electric Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-07-11
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a rotating shaft and a rotary isolating switch, wherein the rotating shaft comprises a body, a moving contact assembly and a fixing piece, a plurality of fixing cavities are formed in the body, radial openings are formed in the fixing cavities, the moving contact assembly is partially fixed in the fixing cavities, clamping grooves are formed in two ends of the moving contact and extend out of the body through the radial openings; the fixed piece is matched with the radial opening to fix the movable contact assembly; the rotating shaft is integrally designed, the rotating angles are consistent, and the precision is high.

Description

Rotating shaft and rotary isolating switch

Technical Field

The utility model relates to a rotating shaft and a rotary isolating switch.

Background

The rotary isolating switch is used for switching on and off operation of the circuit. For example, in the chinese patent, the patent number is 201720946169.5, and the patent name is "rotary isolating switch", and the rotary isolating switch is installed in a layered manner, so as to form a plurality of module housings, and the boss on the rotary frame module in the module housing is matched with the shaft core a, so as to realize the linkage effect between the upper and lower parts, and the upper and lower adjacent module housings are mutually matched through the two rotary frame modules, so as to realize the transmission effect.

The problem that this kind of structure exists lies in, is mutually independent setting between every swivel mount module, in actual rotation in-process, because the cooperation error between every swivel mount module leads to being located the moving contact of terminal and can take place to rotate not in place, so how to make holistic rotation reach unanimously, has become the urgent problem that need to solve of the person of skill in the art.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a rotating shaft and a rotary isolating switch.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the rotary shaft and the rotary isolating switch comprise a body, a moving contact assembly and a fixing piece, wherein a plurality of fixing cavities are formed in the body, radial openings are formed in the fixing cavities, the moving contact assembly is partially fixed in the fixing cavities, clamping grooves are formed in two ends of the moving contact and extend out of the body after penetrating through the radial openings; the fixed part is matched with the radial opening to fix the movable contact assembly.

By adopting the structure, the rotating shaft integrally forms an integral structure, thereby ensuring the uniform rotating angle of the whole rotating shaft and forming the consistent effect. The movable contact assembly is mounted by the fixing piece, in the mounting process, the rotating shaft penetrates through the module, then the movable contact assembly stretches into the fixing cavity from the radial opening, and the fixing is achieved through the fixing piece, so that the linkage effect between the rotating shaft and the movable contact assembly is achieved.

Wherein, be equipped with the constant head tank in the fixed chamber, be equipped with location portion on the mounting, location portion stretches into in the constant head tank.

The positioning groove and the positioning part are arranged, so that the fixing piece is more convenient to install in the fixing process. Meanwhile, the positioning grooves further ensure the symmetrical effect of the two ends of the movable contact assembly, and deviation is prevented from occurring in the installation process.

The fixed part is provided with an extending part, the extending part is positioned below the moving contact assembly, and the extending part extends out of the fixed cavity.

The setting of adopting the extension has formed certain supporting effect, prevents that moving contact subassembly from excessively taking place deformation in the use, influences holistic life-span.

The movable contact assembly comprises two movable contact pieces, the two movable contact pieces are fixed in an up-down fitting mode, and clamping grooves are formed in two ends of the two movable contact pieces.

The two movable contact pieces are adopted, so that the movable contact assembly is more convenient to fix.

Wherein, be equipped with the bending part on one of them movable contact piece, the bending part stretches into to laminating fixedly on another movable contact piece.

Through the setting of the portion of bending for it is more firm to fix between two movable contact, and the portion of bending here prefers to be C style of calligraphy.

The other movable contact piece is provided with a positioning bulge, and the bending part is propped against the positioning bulge.

Through the bellied setting of location, the effect of location has been formed, further improves the fixed effect of portion of bending.

Wherein, be equipped with the breach on the mounting, be equipped with the spacing groove on the breach, the location is protruding with bend the position in the breach, the other end and the spacing groove of bend are offset.

The arrangement of the notch forms a certain abdication effect, so that the fixing piece can achieve a better matching effect. The limiting grooves are formed together with the positioning protrusions to define bending portions, so that fixation is firmer and more stable.

Wherein, radial openings between two adjacent fixed cavities are oriented differently.

The arrangement of the vertical dislocation is adopted, so that the installation is more convenient, and the mode of the vertical dislocation installation of 180 degrees is preferred.

The rotary isolating switch comprises a plurality of modules and the rotating shafts, wherein the rotating shafts are provided with fixed contacts in the modules, the rotating shafts sequentially penetrate through the modules and extend into the modules at the tail ends, and the fixed contacts are located on the movement tracks of the clamping grooves.

By adopting the rotating shaft mode, in the installation process, the fixed contact in the module is firstly installed and fixed, then the rotating shaft and the moving contact assembly are installed, and the stability of the product is improved on the premise of ensuring the concentricity and the rotation consistency.

Wherein, be equipped with the clearance between extension and the inside bottom surface of module.

The arrangement of the gap is adopted, so that interference between the moving contact assembly and the module can not occur, and the stability of the whole movement is improved.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;

FIG. 2 is an exploded view of example 1 of the present utility model;

fig. 3 is a front view of the body in embodiment 1 of the present utility model;

FIG. 4 is a schematic view showing the structure of a fixing member in embodiment 1 of the present utility model;

fig. 5 is a schematic structural diagram of a moving contact assembly in embodiment 1 of the present utility model;

FIG. 6 is a schematic structural view of embodiment 2 of the present utility model;

fig. 7 is a schematic partial structure of embodiment 2 of the present utility model.

Detailed Description

Example 1:

referring to fig. 1 to 5, a rotary shaft includes a body 10, a moving contact assembly 20, and a fixing member 30.

The body 10 is cylindrical as a whole, and the top end of the body is used for being matched with a handle to realize a driving effect. The body 10 is provided with a plurality of fixing cavities 101, wherein the number of the fixing cavities 101 can be related to the number P of the isolating switch, namely, the isolating switch is 4P, and the number of the fixing cavities 101 is four. In the present embodiment, only four fixing chambers 101 are described as an example.

In this embodiment, each of the fixing chambers 101 has a uniform structure, so only one of the fixing chambers 101 will be described herein. The fixation chamber 101 is provided with radial openings 1011. The fixing cavity 101 is used for fixing the moving contact assembly 20 and is matched with the fixing piece 30. In this embodiment, the depth of the fixing cavity 101 may be selected according to practical requirements, but it is required to ensure that the fixing cavity 101 does not affect the practical strength of the body 10, i.e. the body 10 is not easy to break.

The fixed cavity 101 is internally provided with a fixed block 1012 and a positioning groove 1013, the fixed block 1012 and the fixed cavity 101 form a step arrangement, the movable contact assembly 20 is positioned between the fixed block 1012 and the top surface of the fixed cavity 101, and the fixed piece 30 extends into the fixed cavity 101 and abuts against the fixed block 1012 to form a step-type fixed effect.

The positioning slot 1013 is communicated with the radial opening 1011, and the positioning slot 1013 is preferably located at a central position, that is, has a central positioning effect, and the section of the fixing cavity 101 is in a fan shape, so that the center line of the fan shape and the center line of the positioning slot 1013 are arranged in a collinear manner, or the center lines of the two are located on the same plane. The positioning grooves 1013 also ensure the symmetrical effect of the two ends of the movable contact assembly 20, preventing deviation during installation.

Further, in this embodiment, the radial openings 1011 of the fixing chambers 101 may be uniformly oriented or non-uniformly oriented. In this embodiment, it is preferable to use radial openings 1011 between adjacent two of the fixing chambers 101 facing differently. The arrangement of the vertical dislocation is adopted, so that the installation is more convenient, and the mode of the vertical dislocation installation of 180 degrees is preferable, namely the upper fixed cavity 101 is a left radial opening 1011, and the lower fixed cavity 101 is a right radial opening 1011.

In this embodiment, the body 10 is integrally injection molded, so as to ensure the concentricity of the whole body 10.

The movable contact assembly 20 is fixed in the fixed cavity 101, specifically, between the fixed block 1012 and the top surface of the fixed cavity 101.

The movable contact assembly 20 is a unitary structure, and includes two movable contacts, which are divided into a first movable contact 201 and a second movable contact 202 for better description in this embodiment.

The structures at the two ends of the first movable contact piece 201 and the second movable contact piece 202 are consistent, after the first movable contact piece 201 and the second movable contact piece 202 are attached and fixed, the two ends of the first movable contact piece 201 and the second movable contact piece 202 form clamping grooves 203, the clamping grooves 203 are of elastic structures, and the clamping grooves 203 are particularly used for being matched with static contacts, namely the static contacts can extend into the clamping grooves 203, so that the electric conduction effect is achieved.

The second movable contact 202 is located below the first movable contact 201, the center of the second movable contact 202 is a flat plate, and the second movable contact 202 is provided with a positioning protrusion 2021, where the positioning protrusion 2021 protrudes horizontally and laterally outwards in this embodiment. The number of the positioning protrusions 2021 may be selected according to practical needs, and in this embodiment, the number of the positioning protrusions 2021 is two, two by two, and one by two, and is respectively disposed on two sides of the second movable contact 202.

The first movable contact 201 is located above the second movable contact 202, the first movable contact 201 is provided with a bending portion 2011, the bending portion 2011 in the embodiment is C-shaped, the bending portion 2011 is attached to the sidewall of the second movable contact 202 and extends until the bending portion abuts against the bottom surface of the second movable contact 202, so as to achieve a fixing effect, and the side surface of the bending portion 2011 abuts against the side surface of the positioning protrusion 2021. By the arrangement of the positioning boss 2021, the positioning effect is formed, and the fixing effect of the bent portion 2011 is further improved. In this embodiment, the number of the bending portions 2011 is also four.

The movable contact assembly 20 forms a fixed assembly through two movable contact pieces, and can realize the installation effect integrally.

The fixing member 30 is used for closing the radial opening 1011 and fixing the moving contact assembly 20, so as to prevent the moving contact assembly 20 from shaking. The fixing member 30 is provided with a positioning portion 301, an extension portion 302, and a notch 303. The positioning groove 1013 is configured to cooperate with the positioning portion 301, and the positioning portion 301 extends into the positioning groove 1013. The positioning groove 1013 and the positioning portion 301 are adopted, so that the fixing member 30 is more convenient to install in the fixing process.

The number of the protruding parts 302 is two, the protruding parts 302 are located below the moving contact assembly 20, and the protruding parts 302 protrude out of the fixed cavity 101. By adopting the arrangement of the extension part 302, a certain supporting effect is formed, and the moving contact assembly 20 is prevented from being excessively deformed in the use process, so that the whole service life is influenced.

The fixing member 30 is provided with a notch 303, the notch 303 is provided with a limiting groove 3031, the positioning boss 2021 and the bending portion 2011 are located in the notch 303, and the other end of the bending portion 2011 abuts against the limiting groove 3031. The notch 303 forms a certain abdication effect, so that the fixing piece 30 can achieve a matching effect better. The limiting groove 3031 and the positioning boss 2021 together form a limitation of the bending part 2011, so that the fixation is firmer and more stable.

By adopting the structure, the rotating shaft integrally forms an integral structure, thereby ensuring the uniform rotating angle of the whole rotating shaft and forming the consistent effect. The moving contact assembly 20 is installed by adopting the fixing piece 30, in the installation process, the rotating shaft firstly passes through the module, then the moving contact assembly 20 extends into the fixing cavity 101 from the radial opening 1011, and the fixing is realized by the fixing piece 30, so that the linkage effect between the rotating shaft and the moving contact assembly 20 is realized.

Example 2:

referring to fig. 6-7, a rotary isolating switch comprises a plurality of modules 1, a rotating shaft 2, a middle cover 3 and an upper cover 4.

The specific structure of the rotary shaft 2 has been described in detail in embodiment 1, and thus will not be described here.

The number of modules 1 in this embodiment may be selected according to actual requirements, and in this embodiment, the number of modules 1 is four. The two adjacent modules 1 are spliced and fixed, and the fixing mode can be buckle type fixing, bolt fixing, laser welding, ultrasonic welding and the like.

The inside of each module 1 is provided with a fixed contact 11, the outside of the module 1 is also provided with a wiring terminal, and an external wire is electrically connected with the fixed contact 11 through the wiring terminal. The rotating shaft 2 sequentially penetrates through the modules 1 and stretches into the module 1 at the tail end, and the fixed contact 11 is located on the movement track of the clamping groove 203. A gap is provided between the extension 302 and the inner bottom surface of the module 1. The arrangement of the gap is adopted, so that interference between the moving contact assembly and the module 1 can not occur, and the stability of the whole movement is improved. By adopting the mode of the rotating shaft 2, in the installation process, the fixed contact 11 in the module 1 is firstly installed and fixed, then the rotating shaft 2 and the moving contact assembly are installed, and the stability of a product is improved on the premise of ensuring concentricity and rotation consistency.

The middle cover 3 and the upper cover 4 are positioned at the uppermost part of the whole, one end of the middle cover 3 is connected with the module 1 positioned at the uppermost part, and the other end is connected with the upper cover 4. The handle 5 stretches into the middle cover 3 and is fixedly connected with the rotating shaft 2, so that a linkage effect is realized. Further, a reset member is further provided in the middle cap 3, so that a quick reset effect is formed during operation. The reset piece can be a torsion spring or a spring, and a designer can adjust according to actual requirements, and the reset piece is not described in the embodiment.

Claims

1. A rotary shaft, characterized in that: the movable contact assembly is partially fixed in the fixed cavity, clamping grooves are formed in two ends of the movable contact and extend out of the body through the radial openings; the fixed part is matched with the radial opening to fix the movable contact assembly.

2. A spindle as set forth in claim 1, wherein: the fixing cavity is internally provided with a positioning groove, the fixing piece is provided with a positioning part, and the positioning part stretches into the positioning groove.

3. A spindle as set forth in claim 1, wherein: the fixed part is provided with an extending part, the extending part is positioned below the moving contact assembly, and the extending part extends out of the fixed cavity.

4. A spindle as set forth in claim 1, wherein: the movable contact assembly comprises two movable contact pieces, the two movable contact pieces are fixed in an up-and-down fit mode, and clamping grooves are formed in the two ends of the two movable contact pieces.

5. A spindle as set forth in claim 4, wherein: one of the movable contact pieces is provided with a bending part, and the bending part extends into the other movable contact piece to be attached and fixed.

6. A spindle as set forth in claim 5, wherein: the other movable contact piece is provided with a positioning bulge, and the bending part is propped against the positioning bulge.

7. A spindle as set forth in claim 6, wherein: the fixing piece is provided with a notch, the notch is provided with a limiting groove, the positioning bulge and the bending part are positioned in the notch, and the other end of the bending part is propped against the limiting groove.

8. A spindle as set forth in claim 1, wherein: the radial openings between two adjacent fixing cavities are oriented differently.

9. A rotary isolating switch, characterized in that: the rotating shaft assembly comprises a plurality of modules and the rotating shaft according to any one of claims 1-8, wherein static contacts are arranged in the modules, the rotating shaft sequentially penetrates through the modules and stretches into the module at the tail end, and the static contacts are positioned on the movement track of the clamping groove.

10. A rotary isolating switch as in claim 9, wherein: a gap is arranged between the extension part and the inner bottom surface of the module.