CN216412903U

CN216412903U - Change-over switch with dustproof function

Info

Publication number: CN216412903U
Application number: CN202123171099.6U
Authority: CN
Inventors: 刘军
Original assignee: Brad Electric Jiangyin Co ltd
Current assignee: Brad Electric Jiangyin Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-04-29
Anticipated expiration: 2031-12-14

Abstract

The utility model relates to the field of switches, in particular to a change-over switch with a dustproof function, which comprises an installation cover plate and a rotating shaft which penetrates through the installation cover plate in a rotating mode, wherein a sealing assembly used for sealing an assembly gap between the rotating shaft and the installation cover plate is arranged on the rotating shaft. This application is through setting up seal assembly, is favorable to reducing in external dust gets into change over switch through the assembly gap and influences its normal use's possibility.

Description

Change-over switch with dustproof function

Technical Field

The utility model relates to the field of switches, in particular to a change-over switch with a dustproof function.

Background

The change-over switch is a low-voltage switch for switching multiple loops, a plurality of moving contacts are welded on a shaft in an overlapping mode, the moving contacts are sequentially connected with or disconnected from fixed contacts when the shaft rotates, and a circuit is switched to change the circuit from one group of connected electrical appliances to another group of connected electrical appliances.

The transfer switch in the related art, referring to fig. 1, includes a mounting cover plate 2 and a rotating shaft 1, wherein the rotating shaft 1 passes through the mounting cover plate 2, and the rotating shaft 1 is connected to a handle.

An assembly gap is unavoidably formed between the mounting cover plate and the rotating shaft, and external dust possibly passes through the assembly gap and then reaches the inside of the change-over switch, so that the normal use of the change-over switch is influenced, and the change-over switch is obviously insufficient.

SUMMERY OF THE UTILITY MODEL

In order to improve the dustproof performance of change over switch, this application provides a change over switch with dustproof function.

The application provides a change over switch with dustproof function adopts following technical scheme:

the utility model provides a change over switch with dustproof function, passes including installation apron and rotation the pivot of installation apron, be equipped with in the pivot be used for right the pivot with assembly gap between the installation apron realizes sealed seal assembly.

Through adopting above-mentioned technical scheme, seal assembly realizes sealed to the assembly gap between countershaft and the installation apron to this has reduced outside dust and has got into change over switch through the assembly gap and inside and influence its normal use's possibility, is favorable to improving change over switch's dustproof performance.

Optionally, the sealing assembly includes a sealing gasket rotatably sleeved on the rotating shaft, and the sealing gasket is tightly attached to the rotating shaft and the sealing gasket is tightly attached to the mounting cover plate.

Through adopting above-mentioned technical scheme, sealed the pad and keep hugging closely with pivot and installation apron to this has reduced the dust and has got into the inside possibility of change over switch through the assembly gap.

Optionally, an extending edge is circumferentially arranged at the edge of the sealing gasket, and the extending edge is slidably sleeved on the circumferential side wall of the mounting cover plate and clings to the side wall of the mounting cover plate.

By adopting the technical scheme, the arrangement of the extending edge is favorable for improving the sealing performance between the sealing gasket and the mounting cover plate and reducing the possibility that dust enters between the sealing gasket and the mounting cover plate.

Optionally, the mounting cover plate comprises a base and a sealing cover, a containing cavity is formed in one side, opposite to the sealing cover, of the base, the rotating shaft rotates to penetrate through the containing cavity, and the sealing assembly comprises a cleaning soft glue used for filling the containing cavity.

Through adopting above-mentioned technical scheme, because clean flexible glue has mobility, after a period of stewing, it can wrap up the position that the chamber was held relatively to the pivot lateral wall under the effect of gravity, and when the pivot was static and rotated, clean flexible glue homoenergetic kept hugging closely with the pivot to this has filled the assembly gap between pivot and the installation apron from installation apron inside, has improved change over switch's dustproof performance.

Optionally, the sealing assembly further comprises a limiting ring fixedly sleeved on the rotating shaft, and the limiting ring is tightly attached to the sealing cover.

Through adopting above-mentioned technical scheme, the setting of spacing ring realizes spacingly to clean flexible glue, has reduced clean flexible glue and has flowed into change over switch through the assembly gap of closing cap one side in, and then influences change over switch normal use's possibility.

Optionally, the spacing ring has elasticity and along the base extremely the direction of closing cap is the setting of loudspeaker form, the great one end of spacing ring diameter is contradicted the closing cap, the pivot is located it is equipped with the step just to hold on the shaft body of intracavity the step is contradicted hold the diapire in chamber.

Through adopting above-mentioned technical scheme, when the closing cap is connected with the base, the step is contradicted and is held the diapire in chamber, and the spacing ring pressurized produces expansion deformation simultaneously, and then has improved the sealing performance between spacing ring and the closing cap, has further reduced the inside possibility of clean flexible glue flow in change over switch through the assembly gap.

Optionally, the base and the cover are detachably connected.

Through adopting above-mentioned technical scheme, use for a long time and the package attaches a large amount of dusts when clean flexible glue, the workman can realize the split to base and closing cap to this realizes changing clean flexible glue, and then improves dustproof effect.

Optionally, it still is equipped with a plurality of stirring wheels to hold the intracavity, and is a plurality of the stirring wheel winds the axis circumference of pivot sets up, the radius of stirring wheel equals the stirring wheel axis extremely distance between the pivot axis, the stirring wheel rotates and wears out the base.

Through adopting above-mentioned technical scheme, the workman rotates the stirring wheel from the outside with the help of the instrument, and the stirring wheel can realize the stirring to the clean flexible glue around the pivot to this makes the clean flexible glue that holds other positions departments of intracavity can flow to the package that is close to the pivot and realizes the dust and attaches.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sealing assembly seals an assembly gap between the rotating shaft and the mounting cover plate, so that the possibility that external dust enters the interior of the change-over switch through the assembly gap to influence the normal use of the change-over switch is reduced, and the dustproof performance of the change-over switch is improved;

2. because the clean flexible glue has mobility, after a period of time of stewing, it can wrap up the position that the chamber was held relatively to the pivot lateral wall under the effect of gravity, and when the pivot was static and rotated, clean flexible glue homoenergetic kept hugging closely with the pivot to this has filled the assembly gap between pivot and the installation apron from the installation apron is inside, has improved change over switch's dustproof performance.

Drawings

Fig. 1 is an exploded view of the related art.

FIG. 2 is an exploded view showing the connection relationship between the mounting cover, the gasket, and the rotary shaft in example 1 of the present application.

Fig. 3 is an exploded view of the connection relationship between the latch and the spring seat in embodiment 1 of the present application.

Fig. 4 is an exploded view of the connection relationship between the soft cleaning glue, the base and the stop collar in embodiment 2 of the present application.

FIG. 5 is a sectional view showing the connection among the base, the retainer ring, and the agitating wheel in embodiment 2 of the present application.

Description of reference numerals: 1. a rotating shaft; 2. installing a cover plate; 21. sealing the cover; 22. a base; 221. an accommodating chamber; 3. sealing gaskets; 4. edge extension; 5. cleaning the soft rubber; 6. a limiting ring; 7. a step; 8. a stirring wheel; 9. a card slot; 10. a spring seat; 11. and (7) clamping blocks.

Detailed Description

The present application is described in further detail below with reference to figures 2-5.

The embodiment of the application discloses change over switch with dustproof function.

Example 1

Referring to fig. 2, the change-over switch with the dustproof function comprises an installation cover plate 2 and a rotating shaft 1 which penetrates through the installation cover plate 2 in a rotating mode, wherein a sealing assembly is arranged on the rotating shaft 1 and used for sealing an assembly gap between the rotating shaft 1 and the installation cover plate 2.

Referring to fig. 2, the sealing assembly includes a sealing gasket 3 rotatably sleeved on the rotating shaft 1, and the sealing gasket 3 is tightly attached to the rotating shaft 1 and the sealing gasket 3 is tightly attached to the mounting cover plate 2.

Through the setting of above-mentioned seal gasket 3, it is sealed to the commentaries on classics between installation apron 2 and the pivot 1 clearance of joining in marriage, and then reduced in external dust gets into change over switch through the assembly gap and to its normal use production influence's possibility.

A certain number of bolts are needed to be used when each part of the change-over switch is installed, the bolts on the installation cover plate 2 are installed in a built-in mode, and the positions connected by the bolts can be sealed through the sealing gasket 3.

Referring to fig. 2 and 3, the edge of the sealing gasket 3 is circumferentially and integrally formed with a ring-shaped extending edge 4, the extending edge 4 is slidably sleeved on the circumferential side wall of the mounting cover plate 2 and is tightly attached to the circumferential side wall, the arrangement of the extending edge 4 improves the sealing performance between the sealing gasket 3 and the mounting cover plate 2, and further reduces the possibility that dust enters between the sealing gasket 3 and the mounting cover plate 2.

Be provided with a plurality of springs in the change over switch, can age gradually after the spring uses for a long time, probably need change it for this reason, and need dismantle the change over switch is whole when present spring is changed, and change process operation is troublesome.

Therefore, the spring mounting position is set to be open, the two opposite outer side walls are provided with clamping grooves 9, the change-over switch is externally provided with a spring seat 10 with a concave-shaped section, and the two opposite inner walls of the spring seat 10 are integrally formed with clamping blocks 11 used for being clamped into the corresponding clamping grooves 9.

Referring to fig. 2 and 3, since the latch 11 and the spring seat 10 are made of plastic, they can deform, and after the worker puts the spring into the mounting position, the worker manually presses the spring seat 10 at the opening of the change-over switch opposite to the spring, and the spring seat 10 deforms, so that the latch 11 is clamped into the latch groove 9.

Through foretell mode, not only be favorable to conveniently realizing the dismouting of spring, the leakproofness is better moreover, and external dust is difficult to get into in the change over switch.

The implementation principle of the embodiment 1 is as follows: the sealing gasket is arranged and is simultaneously tightly attached to the mounting cover plate 2 and the rotating shaft 1, so that the possibility that external dust enters the change-over switch through an assembly gap to influence the normal use of the change-over switch is reduced, and the dustproof performance of the change-over switch is favorably improved.

Example 2

Referring to fig. 3 and 4, the present embodiment is different from embodiment 1 in that: the mounting cover plate 2 comprises a base 22 and a cover 21 which are bolted with each other, one side of the base 22 opposite to the cover 21 is provided with an accommodating cavity 221, the rotating shaft 1 rotates to penetrate through the accommodating cavity 221, and the sealing assembly comprises cleaning soft glue 5 for filling the accommodating cavity 221.

Referring to fig. 3 and 4, a worker firstly sleeves the base 22 and the cover 21 on the rotating shaft 1, then puts the soft cleaning glue 5 into the accommodating cavity 221, and finally bolts the base 22 and the cover 21.

Because clean flexible glue 5 has mobility, consequently with foretell installation apron 2 back of stewing a period, clean flexible glue 5 can wrap up the lateral wall of pivot 1 relative installation apron 2 position department under the effect of gravity to this has realized sealedly to the assembly gap from installation apron 2 is inside, and external dust is difficult to pass in the assembly gap gets into the change over switch.

Meanwhile, the cleaning soft glue 5 has certain integrity, so that when the assembly gap between the mounting cover plate 2 and the rotating shaft 1 is small, the cleaning soft glue 5 cannot easily penetrate through the assembly gap.

Referring to fig. 3 and 4, the seal assembly further comprises a limit ring 6 fixedly sleeved on the rotating shaft 1, the limit ring 6 is tightly attached to the seal cover 21, the limit ring 6 shields the assembly gap, and the possibility that the cleaning soft glue 5 enters the interior of the change-over switch through the assembly gap on one side of the seal cover 21 is reduced.

Referring to fig. 3 and 4, the limiting ring 6 is elastic and is disposed in a trumpet shape along a direction from the base 22 to the sealing cover 21, a larger end of the limiting ring 6 abuts against the sealing cover 21, a step 7 is disposed on a shaft body of the rotating shaft 1 in the accommodating cavity 221, and the step 7 abuts against a bottom wall of the accommodating cavity 221.

When a worker bolts the seal cover 21 and the base 22, the step 7 props against the bottom wall of the accommodating cavity 221, and the larger diameter end of the limit ring 6 props against the seal cover 21 and is expanded and deformed, so that the sealing formation between the limit ring 6 and the seal cover 21 is improved, and the possibility that the cleaning soft glue 5 in the accommodating cavity 221 flows into the interior of the change-over switch through an assembly gap is further reduced.

Referring to fig. 3 and 4, a plurality of stirring wheels 8 are further arranged in the accommodating cavity 221, the stirring wheels 8 are circumferentially and uniformly arranged around the axis of the rotating shaft 1, the radius of each stirring wheel 8 is equal to the distance between the axis of each stirring wheel 8 and the axis of the rotating shaft 1, and each stirring wheel 8 rotates to penetrate through the base 22.

After the sealing assembly is used for a certain time, a worker rotates the stirring wheel 8 from the outside by means of a tool, the stirring wheel 8 can stir the cleaning soft rubber 5 around the rotating shaft 1, and therefore the clean cleaning soft rubber 5 at other positions in the accommodating cavity 221 can flow to be close to the rotating shaft 1 to wrap dust.

Referring to fig. 3 and 4, after the soft cleaning glue 5 is used for a long time, a worker can detach the base 22 and the cover 21 and replace the soft cleaning glue 5.

The implementation principle of the embodiment 2 is as follows: place clean flexible glue 5 in holding chamber 221, clean flexible glue 5 has mobility, consequently under the effect of gravity, can wrap up pivot 1 and be located the lateral wall that holds in the chamber 221, filled the assembly gap between pivot 1 and the installation apron 2 with this, when pivot 1 is static and rotate, clean flexible glue 5 homoenergetic package attaches the lateral wall of pivot 1, with this reduced the inside possibility of external dust through assembly gap entering change over switch, be favorable to improving change over switch's dustproof effect.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a change over switch with dustproof function, includes installation apron (2) and rotates and passes pivot (1) of installation apron (2), its characterized in that: and a sealing assembly used for sealing an assembly gap between the rotating shaft (1) and the mounting cover plate (2) is arranged on the rotating shaft (1).

2. The changeover switch with a dust-proof function according to claim 1, characterized in that: the sealing assembly comprises a sealing gasket (3) which is rotatably sleeved on the rotating shaft (1), and the sealing gasket (3) is tightly attached to the rotating shaft (1), the sealing gasket (3) and the mounting cover plate (2).

3. The changeover switch with a dust-proof function according to claim 2, wherein: the edge of the sealing gasket (3) is circumferentially provided with an extending edge (4), and the extending edge (4) is sleeved on the circumferential side wall of the mounting cover plate (2) in a sliding manner and is tightly attached to the side wall of the mounting cover plate.

4. The changeover switch with a dust-proof function according to claim 1, characterized in that: installation apron (2) include base (22) and closing cap (21), base (22) are relative one side of closing cap (21) is opened and is held chamber (221), pivot (1) rotate and pass hold chamber (221), seal assembly including be used for with hold clean flexible glue (5) that chamber (221) was filled up.

5. The changeover switch with a dust-proof function according to claim 4, characterized in that: the sealing assembly further comprises a limiting ring (6) fixedly sleeved on the rotating shaft (1), and the limiting ring (6) is tightly attached to the sealing cover (21).

6. The changeover switch with a dust-proof function according to claim 5, wherein: spacing ring (6) have elasticity and along base (22) extremely the direction of closing cap (21) is the setting of loudspeaker form, the great one end of spacing ring (6) diameter is contradicted closing cap (21), pivot (1) are located it is equipped with step (7) just to hold on the axle body in chamber (221) step (7) are contradicted hold the diapire of chamber (221).

7. The changeover switch with a dust-proof function according to claim 4, characterized in that: the base (22) and the cover (21) are detachably connected.

8. The changeover switch with a dust-proof function according to claim 6, characterized in that: hold still to be equipped with a plurality of stirring wheels (8) in the chamber (221), it is a plurality of stirring wheel (8) wind the axis circumference of pivot (1) sets up, the radius of stirring wheel (8) equals stirring wheel (8) axis extremely distance between pivot (1) axis, stirring wheel (8) rotate wear out base (22).