CN217157999U

CN217157999U - Button switch with waterproof structure inside

Info

Publication number: CN217157999U
Application number: CN202123159192.5U
Authority: CN
Inventors: 芦苇; 王蕊; 晁杰; 史吉光; 褚贤勇; 郭丽娟; 段洁慧; 王启凡; 牛卫光; 李军利; 杨央
Original assignee: Wenxian Power Supply Co Of State Grid Henan Electric Power Co
Current assignee: Wenxian Power Supply Co Of State Grid Henan Electric Power Co
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-08-09
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to the technical field of button switches, and discloses a button switch with a waterproof structure inside, which comprises a cylindrical base and a rubber water-proof ring, wherein a button component is arranged in the cylindrical base in a sliding manner, a first water-proof ring groove is concentrically arranged on the outer side of the rubber water-proof ring, and a second water-proof ring groove is arranged on the inner side of the rubber water-proof ring; the outer side of the rubber water-proof ring is pressed on the upper end face of the cylindrical base through a pressing ring, a first ring platform matched with the first water-proof ring groove is arranged on the pressing ring, and a first abdicating ring groove matched with the first water-proof ring groove is arranged on the cylindrical base; the button subassembly top is located through pressing the cap pressure to the inboard of rubber water proof ring, the bottom surface of pressing the cap is equipped with and steps down the annular with second water proof annular matched with second, be equipped with on the button subassembly with second water proof annular matched with second ring platform. The device effectively improves the waterproof performance of the button switch by improving the sealing installation method of the rubber water-proof ring on the cylindrical base and the button assembly.

Description

Button type switch with waterproof structure inside

Technical Field

The utility model relates to a button switch technical field, in particular to inside has waterproof construction button type switch.

Background

The push-button switch is a switch that uses a push button to push a transmission mechanism to make or break a movable contact and a stationary contact to realize circuit switching, is generally used as a switch for making or breaking a small-current control circuit in a short time, and is used for sending a start or stop instruction in the control circuit, and breaking a main circuit through a contactor, a relay and the like, and can be divided into three types, namely a normally open type, a normally closed type and a composite type according to the use occasions.

In some severe application scenarios, conductive liquid such as water may enter the interior of the button switch through gaps between components of the button switch to cause short circuit, which affects reliability of the button switch, and in order to solve the above problems, sometimes a rubber cap or a rubber cover is provided to improve water resistance, for example, chinese patent application No. CN201620712100.1 discloses a dustproof and waterproof button switch, which includes a hollow base, a button component penetrating the base, an external thread provided on an outer wall of the base and a protective cover in threaded fit, the protective cover includes a connection ring connected with an outer wall of the base and a rubber cover penetrating an opening of the connection ring to form a seal, so as to prevent water from entering the interior of the base, but in practical applications, the button switch can only prevent a small amount of water from entering the interior of the button switch, if the button switch is in a working environment with a large amount of water, some water may climb upwards along a gap between the base and the connection ring to be extended, into the base.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a button switch with a waterproof structure, the waterproof structure of the button switch can effectively prevent conductive liquid such as water from entering the button switch, and the button switch is guaranteed to have better reliability in a larger working environment.

In order to achieve the above object, the present invention is realized by the following technical solutions:

a button switch with a waterproof structure inside comprises a cylindrical base, a button assembly and a rubber water-proof ring, wherein the button assembly is arranged in the cylindrical base in a sliding mode, a first water-proof ring groove protruding downwards is concentrically arranged on the outer side of the rubber water-proof ring, and a second water-proof ring groove protruding upwards is arranged on the inner side of the rubber water-proof ring; the outer side of the rubber water-proof ring is pressed on the upper end face of the cylindrical base through a pressure ring, the pressure ring is in threaded connection with the outer side wall of the cylindrical base, a first ring platform matched with the first water-proof ring groove is arranged on the pressure ring, and a first abdicating ring groove matched with the first water-proof ring groove is arranged on the upper end face of the cylindrical base; the inboard of rubber water proof ring is located the button subassembly top through pressing the cap pressure, press the cap to include the lid and locate the erection column of lid bottom surface perpendicularly, the erection column links to each other with the button subassembly, the bottom surface of lid is equipped with and steps down the annular with second water proof annular matched with second, button subassembly top end face is equipped with and separates annular matched with second ring platform with second.

The utility model discloses in, first ring platform cooperatees with first ring groove of stepping down, makes first water proof annular compressed tightly in the up end of cylindric base by the clamping ring, and second ring platform and second ring groove of stepping down cooperate, make second water proof annular compressed tightly on the button subassembly by the pressure cap, and above-mentioned setting makes the water proof rubber ring keep apart the inside and the outside seal of cylindric base, promotes button switch's water-proof effects.

Further, the first water-proof ring groove and the second water-proof ring groove are respectively one of a trapezoid ring groove, a V-shaped ring groove or a rectangular ring groove. Obviously, first ring platform and second ring platform are trapezoidal ring platform, V-arrangement ring platform or the rectangle ring platform of matched with respectively, first annular of stepping down and second annular of stepping down are trapezoidal annular, V-arrangement ring groove or the rectangle ring groove that matches respectively to the inboard and the outside that make rubber water proof ring can be pressed tightly respectively and locate on cylindric base and the button subassembly, reach good waterproof sealing effect.

Further, still be equipped with the rectangle occupy-place annular that is used for filling the clamping ring and presses the clearance between the cap on the rubber water proof ring for prevent laying dust between the clamping ring and the gap of pressing the cap. Because rubber water proof ring is the rubber material, has certain deformability, when button assembly atress reciprocated, rectangle occupy-place annular also can warp the cooperation button assembly and remove in fact to avoid rubber water proof ring directly by the tractive and the extension deformation cooperates button assembly to remove, make rubber water proof ring lose elasticity or fracture and shorten life under the used repeatedly.

Further, the coaxial snap ring that is equipped with on the inner wall of cylindric base, the button subassembly includes push rod and spring, the push rod slides and sets up in the cylindric base, and on the push rod wore to locate the snap ring, the lower extreme that the top of push rod was equipped with mount table, push rod was equipped with the spacing ring with snap ring matched with, the external diameter of spacing ring is greater than the internal diameter of snap ring, the spring housing is located between the lateral wall of cylindric base inner wall and push rod, the top of spring and mount table bottom butt, the bottom and the snap ring butt of spring, the mount table top surface sets up with one heart and is equipped with second ring platform and mounting hole, presses the erection column threaded connection of cap in the mounting hole. The push rod can slide downwards from an initial position under the pressing of external force, and when the external force is removed, the push rod returns to the initial position under the action of the spring. Preferably, the push rod may be hollow cylindrical in order to save raw materials.

Further, the mount table includes the circular base plate with push rod fixed connection, and the diameter of circular base plate matches with the internal diameter of cylindric base, and the circular base plate top surface is equipped with the spliced pole with erection column threaded connection, the spliced pole top surface be equipped with the second ring platform with one heart and with the mounting hole, and the diameter of spliced pole is less than the internal diameter of cylindric base, be equipped with in the clearance of spliced pole and erection base and meet water inflation rubber ring, and meet the thickness of water inflation rubber ring and be less than half of the spliced pole height. The diameter of the circular base plate is matched with the inner diameter of the cylindrical base, and the button assembly is prevented from shaking in the cylindrical base. The clearance between water-swelling rubber ring and the water contact back expandable filling spliced pole and the cylindric base prevents that water from flowing to the below of cylindric base to prevent that the button switch that rubber water proof ring seal became invalid and lead to from intaking, further improve button switch's waterproof performance.

The utility model discloses in still including other subassemblies that can make this button type switch normal use, for example static contact and moving contact that are used for accomplishing button switch's electrical property break-make function all belong to the conventional selection in this field. Additionally, the utility model discloses in not adding the device or the subassembly of injecing and all adopting conventional means in this field, for example, cylindric base, first water proof annular, second water proof annular, clamping ring, first ring platform, first groove of stepping down, lid, erection column, second ring platform, trapezoidal annular, V-arrangement annular, rectangle occupy-place annular, snap ring, push rod, spring, spacing ring, circular base plate, spliced pole, meet water inflation rubber ring etc. and all adopt conventional setting.

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

this device is through improving the sealed installation method of rubber water proof ring at cylindric base and button subassembly, has effectively improved button switch's waterproof performance to through set up water-swelling rubber ring between cylindric base and spliced pole, prevent that the button switch that rubber water proof ring seal failure leads to from intaking, further improve button switch's waterproof performance, have higher reliability.

Drawings

Fig. 1 is a schematic structural view of a push button switch having a waterproof structure inside according to an embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or limit that the indicated device or element must be constructed and operated in a specific orientation.

Examples

As shown in fig. 1, a button switch with a waterproof structure inside comprises a cylindrical base 1, wherein a button assembly and a rubber water-proof ring 2 are arranged in the cylindrical base 1 in a sliding manner, a first downward-protruding water-proof ring groove 21 is concentrically arranged on the outer side of the rubber water-proof ring 2, and a second upward-protruding water-proof ring groove 22 is arranged on the inner side of the rubber water-proof ring 2.

The inner wall of the cylindrical base 1 is coaxially provided with a clamping ring 11, the button assembly comprises a push rod 3 and a spring 4, the push rod 3 is arranged in the cylindrical base 1 in a sliding mode, the push rod 3 penetrates through the clamping ring 11, the top end of the push rod 3 is provided with an installation platform, the lower end of the push rod 3 is provided with a limiting ring 31 matched with the clamping ring 11, and the outer diameter of the limiting ring 31 is larger than the inner diameter of the clamping ring 11; the mount table includes circular base plate 5 with 3 top fixed connection of push rod, and the diameter of circular base plate 5 matches with the internal diameter of cylindric base 1, and the top surface of circular base plate 5 is equipped with spliced pole 6 perpendicularly, and the top surface of spliced pole 6 is equipped with the mounting hole, 4 covers of spring are located between the lateral wall of 1 inner wall of cylindric base and push rod 3, the top of

spring

4 and 5 bottom surface butts of circular base plate, the bottom and the 11 butts of snap ring of spring 4.

The outer side of the rubber water-proof ring 2 is pressed on the upper end face of the cylindrical base 1 through a pressing ring 7, the pressing ring 7 is in threaded connection with the outer side wall of the cylindrical base 1, a first ring platform 71 matched with the first water-proof ring groove 21 is arranged on the pressing ring 7, and a first abdicating ring groove matched with the first water-proof ring groove 21 is arranged on the upper end face of the cylindrical base 1; the top surface of spliced pole 6 is located through pressing cap 8 pressure to the inboard of rubber water proof ring 2, press cap 8 to include lid 81 and locate the erection column 82 of lid 81 bottom surface perpendicularly, erection column 82 threaded connection is in the mounting hole of spliced pole 6, the bottom surface of lid 81 is equipped with and steps down the annular with second water proof annular 22 matched with second, the top surface of spliced pole 6 is equipped with and separates annular 22 matched with second ring platform 61 with the second.

The diameter of spliced pole 6 is less than the internal diameter of cylindric base 1, is equipped with in the clearance of spliced pole 6 and cylindric base 1 and meets water inflation rubber ring 9, and meets water inflation rubber ring 9's thickness for the third of spliced pole 6 height.

The first water-stop ring groove 21 and the second water-stop ring groove 22 are both trapezoidal ring grooves.

And a rectangular occupying ring groove 23 used for filling a gap between the pressure ring 7 and the pressure cap 8 is also arranged on the rubber water-proof ring 2.

It should be noted that, in this embodiment, the fixed contact and the movable contact for completing the electrical on-off function of the button switch are conventionally arranged in the field, taking a normally open button switch as an example, a wiring chamber 100 is arranged at the bottom end of the cylindrical base 1, two wiring terminals 110 are arranged in the wiring chamber 100, a fixed contact 111 is arranged on each wiring terminal 110, the bottom end of the push rod 3 extends into the wiring chamber 100, and a bridge-type movable contact 120 is arranged on the bottom end of the push rod 3, when no external force is applied, the bridge-type movable contact 120 is not in contact with the fixed contact 111, and the button switch keeps an off state; when an external force presses the pressing cap 8, the push rod 3 slides downwards from the initial position to drive the two ends of the bridge-type moving contact 120 to be respectively contacted with the static contacts 111 of the two binding posts 110, and the button switch is switched on; after the external force is removed, the push rod 3 returns to the initial position under the action of the spring 4, the bridge-type moving contact 120 is driven to be separated from the static contact 111, and the button switch returns to the off state.

The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.

Claims

1. A button switch with a waterproof structure inside comprises a cylindrical base, wherein a button assembly is arranged in the cylindrical base in a sliding mode, and the button switch is characterized by further comprising a rubber water-proof ring, wherein a first water-proof ring groove protruding downwards is concentrically arranged on the outer side of the rubber water-proof ring, and a second water-proof ring groove protruding upwards is arranged on the inner side of the rubber water-proof ring; the outer side of the rubber water-proof ring is pressed on the upper end face of the cylindrical base through a pressure ring, the pressure ring is in threaded connection with the outer side wall of the cylindrical base, a first ring platform matched with the first water-proof ring groove is arranged on the pressure ring, and a first abdicating ring groove matched with the first water-proof ring groove is arranged on the upper end face of the cylindrical base; the inboard of rubber water proof ring is located the button subassembly top through pressing the cap pressure, press the cap to include the lid and locate the erection column of lid bottom surface perpendicularly, the erection column links to each other with the button subassembly, the bottom surface of lid is equipped with and steps down the annular with second water proof annular matched with second, button subassembly top end face is equipped with and separates annular matched with second ring platform with second.

2. The button switch of claim 1, wherein the first and second water-proof ring grooves are one of a trapezoid ring groove, a V-shaped ring groove, or a rectangular ring groove.

3. The push-button switch with waterproof structure according to claim 1, wherein said rubber water-proof ring further comprises a rectangular space occupying ring groove for filling a gap between said pressing ring and said pressing cap.

4. The push button switch with the waterproof structure according to any one of claims 1 to 3, wherein a snap ring is coaxially disposed on the inner wall of the cylindrical base, the push button assembly comprises a push rod and a spring, the push rod is slidably disposed in the cylindrical base, the push rod penetrates through the snap ring, a mounting platform is disposed at the top end of the push rod, a limiting ring matched with the snap ring is disposed at the lower end of the push rod, the outer diameter of the limiting ring is larger than the inner diameter of the snap ring, the spring is sleeved between the inner wall of the cylindrical base and the side wall of the push rod, the top end of the spring abuts against the bottom surface of the mounting platform, the bottom end of the spring abuts against the snap ring, a second annular platform and a mounting hole are concentrically disposed on the top surface of the mounting platform, and a mounting post of the pressing cap is in threaded connection with the mounting hole.

5. The push-button switch with the waterproof structure according to claim 4, wherein the mounting platform comprises a circular base plate fixedly connected with the push rod, the diameter of the circular base plate matches with the inner diameter of the cylindrical base, the top surface of the circular base plate is provided with a connecting post in threaded connection with the mounting post, the top surface of the connecting post is concentrically provided with a second annular platform and a mounting hole, the diameter of the connecting post is smaller than the inner diameter of the cylindrical base, a water-swelling rubber ring is arranged in the gap between the connecting post and the mounting base, and the thickness of the water-swelling rubber ring is smaller than half of the height of the connecting post.