CN211530298U - Waterproof structure of leakage protection plug - Google Patents

Abstract

The utility model belongs to the technical field of the plug technique and specifically relates to a waterproof construction of earth leakage protection plug, press pulling including face-piece, drain pan and Reset, the face-piece passes through bolt lock dress with the drain pan, Reset installs on the face-piece according to pulling, be equipped with in the face-piece and follow the waterproof construction that Reset pressed the action of pulling. The utility model discloses, hide waterproof packing ring and place in outer hub and lose waterproof function because of waterproof silica gel pad is damaged, moreover more pleasing to the eye and promote the durability, also can not influence and use and feel. The double-layer silica gel sheet is buckled with the pit groove for sealing, in the process that the Reset presses the brake to move up and down, the double-layer silica gel sheet can be inclined up and down along with the Reset in the waterproof silica gel pad, so that the waterproof function is ensured by pressing the brake close to the Reset, other parts of the waterproof silica gel pad are not moved, and the durability of the waterproof silica gel pad is improved.

Description

Waterproof structure of leakage protection plug

Technical Field

The utility model relates to the technical field of plugs, specifically be a waterproof construction of earth-leakage protection plug.

Background

ALCI is short for application leak-Current Interrupters, namely a Leakage protection plug. The waterproof design of current earth leakage protection plug is usually restricted to on the outside casing, and whole water-proof effects can not obtain the assurance, and inside steam or water droplet got into the casing from the joint line department of plug easily, lead to the plug inefficacy.

Through the retrieval, the earth leakage protection plug that has waterproof construction of authorized bulletin number CN207977585U, including the casing, set up the core assembly in the casing, and with the casing is connected and is extended the outside ply-yarn drill of casing, through being equipped with the waterproof circle of casing between upper cover and bottom, be equipped with the waterproof circle of ply-yarn drill in the annular groove of ply-yarn drill, and earth leakage protection plug still includes that the cover locates the waterproof pad of inserted sheet on the inserted sheet and is equipped with the waterproof pad of button and solves above-mentioned problem. However, in the scheme, the button waterproof pad is only sleeved on the Reset button and the Test button, so that water drops are easy to enter the shell from the buttons.

Through retrieval, the sealed waterproof leakage protection plug with the authorization notice number CN210074276U comprises an upper cover, a lower cover, a leakage protection part and a wire part, wherein the leakage protection part is positioned between the upper cover and the lower cover, the wire part is fixedly clamped by the upper cover and the lower cover, the upper cover of the leakage protection plug is sealed by a reset sealing gasket and a test sealing gasket which are arranged between a reset key and the leakage protection part, the joint part of the upper cover, the lower cover and the wire part is sealed by a sealing strip and a wire sealing ring, and the lower cover is sealed by a pin sealing gasket. The technical problem of CN 207977585U's earth leakage protection plug that has waterproof construction above-mentioned existence is solved, but this scheme still exists not enoughly: because the sealed pad that resets is between reset key and earth leakage protection portion, can not be applicable to the switch part that the reset key runs through the PCB board on the one hand, on the other hand is, the sealed edge that resets adopts bellied design, can form the risk that the recess has a small amount of water to get into in the fixed position of reset key.

Through retrieval, the technical problems of CN210074276U are solved by a waterproof leakage protection plug with an authorized notice number CN208873976U and a waterproof leakage protection plug with an authorized notice number CN207165844U, and although the two technical schemes have the sealing ring for preventing the reset button from being water, the risk of water drop penetration still exists because the lubricating agent is coated on the inner side wall of the guide hole of CN208873976U and the sealing ring slides on the inner side wall of the guide hole, and the sealing flange of the reset rubber cap of CN210074276U is tightly attached to the inner side wall of the upper cover and cannot act along with the (reset) button, and the risk of water drop penetration still exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof construction of earth-leakage protection plug to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a waterproof structure of a leakage protection plug comprises a face shell, a bottom shell and a Reset press, wherein the face shell and the bottom shell are buckled through bolts, the Reset press is installed on the face shell, and a waterproof structure which acts along with the Reset press is installed in the face shell.

Furthermore, the part of the waterproof structure which acts along with the Reset pressing brake comprises a waterproof silica gel pad, a waterproof gasket is arranged on the waterproof silica gel pad, and the waterproof gasket is sleeved on the Reset pressing brake and buckled with the Reset pressing brake.

Furthermore, the waterproof gasket is a double-layer silica gel sheet, the Reset is provided with a flange on the press brake, and the double-layer silica gel sheet is buckled with the Reset press brake.

Furthermore, the double-layer silica gel sheet is U-shaped, the Reset pressing parts positioned on the upper side and the lower side of the Reset pressing part are provided with chamfer-designed pit grooves, and the U-shaped double-layer silica gel sheet is hermetically buckled with the pit grooves.

Furthermore, the tail end of the U-shaped double-layer silica gel sheet is provided with a semicircular design which is matched with a Reset chamfer design.

Furthermore, a gap is formed between the double-layer silica gel sheet and the waterproof silica gel pad, and the gap is a U-shaped open slot.

Furthermore, the face shell is also provided with a silica gel pressing plate for fixing the waterproof silica gel pad.

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

the utility model discloses in, the Reset has the flange according to the well upper portion of pulling, and the Reset that is located both sides about the flange all has the hole groove according to pulling, and this hole groove position has certain degree of depth for waterproof silica gel pad's waterproof gasket: the double-layer silica gel piece is sleeved on the Reset button and is sealed and buckled with the Reset button, the possibility of loosening of the double-layer silica gel piece is prevented, and the chamfer design is arranged at the front end of the pit groove, so that the position of the waterproof silica gel pad cannot be shifted due to the guiding function.

The utility model discloses in, the double-deck silica gel piece is U type suit on the flange, and tip and hole groove spiral-lock seal, and the flange has certain length and width to ensure also can paste closely and increase the distance and the degree of difficulty that moisture needs the infiltration with waterproof silica gel pad during from top to bottom activity.

The utility model discloses in, double-deck silica gel piece can paste tightly and entangle the Reset and press the pulling and ensure waterproof function. The tail end of the double-layer silica gel sheet is provided with a semicircular design which can be matched with a Reset chamfer angle design according to a trigger, so that a further waterproof function and a tightening effect are provided.

The utility model discloses in, hide waterproof packing ring and place in outer hub and lose waterproof function because of waterproof silica gel pad is damaged, more pleasing to the eye moreover and promote the durability, can not influence yet and use and feel.

In the utility model, the U-shaped open slot not only can provide the up-and-down moving space when the Reset is pressed down, but also can assist the Reset to be pressed down by the middle thrust because of the circular design.

The utility model discloses in, seal with hole groove spiral-lock through having set up double-deck silica gel piece, according to the in-process of the action about pulling at the Reset, except that double-deck silica gel piece can follow the Reset and according to the slope from top to bottom of pulling at waterproof silica gel pad to with hugging closely the Reset and according to pulling and ensure waterproof function, and other parts of waterproof silica gel pad are motionless, have promoted waterproof silica gel pad's durability.

Drawings

Fig. 1 is the assembly structure diagram of the present invention.

Fig. 2 is a schematic view of the inside of the face shell of the present invention.

Fig. 3 is an exploded view of the present invention with a portion of the components removed from the front shell.

Fig. 4 is a schematic sectional view taken along line a-a of fig. 1 according to the present invention.

Fig. 5 is an exploded view of a portion of fig. 4 according to the present invention.

Fig. 6 is a schematic diagram of the Reset structure of the present invention.

Fig. 7 is an enlarged schematic view of a portion a in fig. 4 according to the present invention.

Fig. 8 is a more detailed schematic diagram of fig. 7 according to the present invention.

Fig. 9 is a schematic diagram of Reset pressing of fig. 7 or 8 according to the present invention.

Fig. 10 is a schematic diagram of Reset after the Reset is pressed.

Fig. 11 is a schematic cross-sectional view taken along line B-B of fig. 1 according to the present invention.

Fig. 12 is an exploded view of a portion of fig. 11 according to the present invention.

Fig. 13 is a schematic diagram of a portion of fig. 3 according to the present invention.

Fig. 14 is a schematic view of another perspective view of fig. 13 according to the present invention.

Fig. 15 is a schematic view of another perspective view of fig. 14 according to the present invention.

In the figure: 1-face shell, 2-bottom shell, 3-power line, 4-silica gel pressing plate, 5-waterproof silica gel pad, 6-Reset pressing, 7-Test pressing, 8-pin, 9-PCB, 10-Reset spring, 11-actuator, 12-buckle sheet, 13-bolt, 14-bridging silver nail, 15-buckle sheet spring, 16-solenoid, 17-metal hammer core, 18-open slot, 19-waterproof gasket, 20-flange, 21-pit slot and 22-double-layer silica gel sheet.

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 of the present invention, 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 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 end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed/sleeved," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-15, the present invention provides a technical solution:

a waterproof structure of a leakage protection plug comprises a face shell 1, a bottom shell 2 and a Reset pressing brake 6, wherein the face shell 1 and the bottom shell 2 are buckled through a bolt 13, the Reset pressing brake 6 is installed on the face shell 1, and a part of waterproof structure which moves along with the Reset pressing brake 6 is installed in the face shell 1.

Specifically, as shown in fig. 3 and 7, the waterproof structure partially following the Reset button 6 includes a waterproof silicone pad 5, the waterproof silicone pad 5 has a waterproof gasket 19, and the waterproof gasket 19 is sleeved on the Reset button 6 and is engaged with the Reset button 6.

Specifically, as shown in fig. 6, the waterproof gasket 19 is a double-layer silicone sheet 22, the Reset button 6 is provided with a flange 20, and the double-layer silicone sheet 22 is fastened with the Reset button 6.

Specifically, as shown in fig. 7 and 9-10, the double-layer silicone sheet 22 is U-shaped, the Reset pressing hook 6 located on the upper and lower sides of the Reset pressing hook 6 is provided with a chamfer-designed pit 21, and the U-shaped double-layer silicone sheet 22 is hermetically fastened with the pit 21.

Specifically, as shown in fig. 8, the end of the U-shaped double-layer silicone sheet 22 has a semicircular design to match with the chamfer design of the Reset button 6.

Specifically, as shown in fig. 7, a gap is formed between the double-layer silicone sheet 22 and the waterproof silicone pad 5, and the gap is a U-shaped open slot 18.

Specifically, as shown in fig. 3, the face shell 1 further has a silica gel pressing plate 4 for fixing a waterproof silica gel pad 5.

In the present invention, as shown in fig. 6-7, the Reset has a flange 20 at the middle upper part of the brake 6, the Reset located at the upper and lower sides of the flange 20 has a pit 21 on the brake 6, the pit 21 has a certain depth for the waterproof gasket 19 of the waterproof silicone rubber pad 5: the double-layer silica gel sheet 22 is sleeved on the Reset button 6 and is sealed and buckled with the Reset button 6, the possibility of loosening the double-layer silica gel sheet 22 is prevented, and the front end of the pit 21 is provided with a chamfer design which has a guiding function to ensure that the position of the waterproof silica gel pad 5 cannot be shifted.

In the utility model discloses in, as shown in fig. 8, double-deck silica gel piece 22 is the U type suit on flange 20, and the tip seals with pot hole 21 spiral-lock, and flange 20 has certain length and width and ensures also can paste closely and increase the distance and the degree of difficulty that moisture needs the infiltration with waterproof silica gel pad 5 during from top to bottom activity.

In the present invention, as shown in fig. 3 and 8, the double-layer silicone sheet 22 can tightly adhere to and cover the Reset button 6 to ensure the waterproof function. The end of the double-layer silica gel sheet 22 is provided with a semicircular b design which can be matched with a chamfer design of the Reset button 6, thereby providing a further waterproof function and a tightening effect.

The utility model discloses in, as shown in fig. 7, hide waterproof packing ring 19 and place in outer hub and lose waterproof function because of waterproof silica gel pad 5 is damaged, more pleasing to the eye moreover and promote the durability, also can not influence and use and feel.

In the present invention, as shown in fig. 7, the U-shaped opening slot 18 is designed to provide a space for the Reset button 6 to move up and down when it is pressed down, and also to assist the Reset button 6 to be centered by the middle thrust due to the circular design.

The utility model discloses in, seal with pot hole 21 spiral-lock through having set up double-deck silica gel piece 22, according to the in-process of 6 upper and lower actions of pulling at the Reset, except that double-deck silica gel piece 22 can follow the Reset and press 6 tilt from top to bottom pulling at waterproof silica gel pad 5 to with hug closely the Reset and ensure waterproof function according to 6 of pulling, and waterproof silica gel pad 5 other parts are motionless, have promoted waterproof silica gel pad 5's durability.

As shown in fig. 7-10, the waterproof structure of the present invention has the following conditions in the using process:

stage (position) 1-Standby state (fig. 7)

The Reset spring 10 provides an upward pushing force to push the Reset button 6 upward, so that the Reset button 6 is at the highest (standby) position on the stroke, and the waterproof silicone pad 5 (i.e., the double-layer silicone sheet 22) is naturally attached to the Reset button 6.

Stage 2-Reset pressed 6 to the bottommost state (FIG. 9)

The Reset button 6 is pressed to the bottom, so the Reset button 6 is at the lowest position on the stroke, the waterproof silicone pad 5 extends downwards corresponding to the U-shaped position of the height of the Reset button 6, the lower layer silicone sheet can expand outwards and be pulled away from the original pit slot 21 position due to the outward pulling force driven by the U-shaped position, the upper layer silicone sheet can be opposite, the Reset button 6 is at the lowest position on the stroke and inclines downwards, so the waterproof silicone pad has inward pushing force, compared with the standby state, the upper layer silicone sheet can better sleeve the Reset button 6, and the chamfer design of the Reset button 6 can be matched with the inclination angle of the upper layer silicone sheet to ensure the waterproof function.

Stage 3-Reset/line close (FIG. 10)

The Reset spring 10 provides an upward pushing force to push the Reset button 6 upward, the Reset button 6 catches (by pulling the catch 12 to catch) the trigger assembly and is in the mid-stroke (line closed) position, between the stage 1-natural state and the stage 2-Reset state, the lower silicone sheet will expand outward due to the pulling force driven by the U-shape position, but the pulling force is less so the displacement distance is less than the distance of the Reset button 6 to the bottom, the sheet will be guided into the pit 21 from the position completely separated from the pit 21, the chamfer design of the Reset button 6 can also help to guide into the pit 21 at this stage, and the upper silicone sheet will also have downward inclination and inward pushing force as the Reset button 6 is pressed to the bottom, but the inclination angle will be relatively reduced (small), but the waterproof function can be maintained.

In the present invention, as shown in fig. 3 and fig. 13-15, other component structures and operating principles are all the prior art or may be slightly different from the prior art in terms of naming, which is not the technical point to be improved by the present solution, but for the convenience of understanding the present invention, the following brief descriptions are made on the functions, mutual positions and operating principles of the remaining components of the present solution in the (this type of) switch protection plug:

the components and their functions:

the Reset button 6-is arranged on the face shell 1, the bottom part of the Reset button penetrates through the PCB 9 and is provided with a hook part a, and the open-circuit system is closed through the actions of rising and falling;

the waterproof silica gel pad 5-is positioned in the face shell 1 above the PCB 9 and is arranged on the silica gel pressing plate 4 to prevent water from entering a gap between a Reset button 6 and the face shell;

the silica gel pressing plate 4 is used for fixing the position of the waterproof silica gel pad 5 and ensuring that no gap exists between the face shell 1 and the waterproof silica gel pad 5;

the Reset spring 10-is sleeved on the reverse E-shaped Reset button 6, the bottom of the Reset spring is positioned on the PCB 9, and elasticity is provided to Reset the Reset button 6;

the trigger 11-is located at the lower part of the PCB 9, for the Reset button 6 and the hook a to pass through, and the bottom is located on the buckle slice 12, the contact point of the bridge connection silver nail 14 and the pin 8 is closed by pulling up the bridge through the ascending and descending actions in response to the Reset button 6;

the buckle sheet 12 is L-shaped and is positioned at the bottom of the trigger 11, and the horizontal part of the bottom penetrates through the trigger 11, so that the Reset can buckle and release the trigger component (namely the trigger 11) according to the trigger 6;

the buckle piece spring 15 is positioned in the buckle piece 12 (the horizontal part at the bottom), and one end of the buckle piece spring is elastically contacted with the trigger 11 to provide elastic force to reset the buckle piece 12;

a metal hammer core 17-is positioned in the solenoid 16, and the magnetic conductor pulls the buckle sheet 12 to unhook the hook part a, so that the contact point of the connecting bridge silver nail 14 and the pin 8 is disconnected;

solenoid 16-set in the panel shell 1, locate below PCB board, utilize the electric current to pass the wire, produce the apparatus of the magnetic field for the metal hammer core 17;

the pins 8 are arranged on the bottom shell 2 and penetrate into the face shell 1 to connect a power supply to the system;

the middle part of the connecting bridge silver nail 14 is arranged at the end part of the inverted V-shaped trigger, the front end part is provided with a contact point which corresponds to the contact point of the pin 8 in the upper and lower positions, and the circuit is connected and disconnected through the up-and-down swinging;

the Test button 7-is arranged on the face shell 1, and the solenoid 16 generates a magnetic field through a circuit to break the circuit so as to release the hook part a.

The working principle of the switch is as follows: when the Reset/circuit is closed, the Reset spring 10 provides an upward thrust to push the Reset button 6 upwards, so that the Reset button 6 is at the highest position (standby state) on the stroke, the waterproof silicone pad 5 (namely the double-layer silicone piece 22) is tightly attached to the Reset button 6 in a natural state, the Reset button 6 is pushed to the bottom, so that the Reset button 6 is at the lowest position on the stroke, the inclination angles of the double-layer silicone piece 22 are matched with each other and tightly attached to the Reset button 6 to ensure the waterproof function, when the Reset/circuit is closed, the Reset spring 10 provides an upward thrust to push the Reset button 6 upwards, the Reset button 6 further buckles the trigger 11 through the hook part a and the buckle piece 12, then the bridge is pulled upwards to close the contact point of the bridge connecting silver nail 14 and the pin 8, the circuit is switched on, and when the Test button 7 is pressed, the solenoid 16 generates a magnetic field through the circuit to open the circuit to enable the hook part a to be unhooked so that the Reset button 6 is released.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a waterproof construction of earth leakage protection plug, includes that face-piece (1), drain pan (2) and Reset press brake (6), face-piece (1) and drain pan (2) are through bolt (13) spiral-lock, the Reset is installed on face-piece (1) according to brake (6), its characterized in that: the face shell (1) is internally provided with a waterproof structure which partially follows the Reset pressing (6) to act.

2. A water-proof structure of a leakage protection plug according to claim 1, wherein: the part of the waterproof structure which acts along with the Reset pressing brake (6) comprises a waterproof silica gel pad (5), a waterproof gasket (19) is arranged on the waterproof silica gel pad (5), and the waterproof gasket (19) is sleeved on the Reset pressing brake (6) and is buckled with the Reset pressing brake (6).

3. A water-proof structure of a leakage protection plug according to claim 2, wherein: the waterproof gasket (19) is a double-layer silica gel sheet (22), the Reset is provided with a flange (20) on the press brake (6), and the double-layer silica gel sheet (22) is buckled with the Reset press brake (6).

4. A water-proof structure of a leakage protection plug according to claim 3, wherein: the double-layer silica gel sheet (22) is U-shaped, the Reset pressing catches (6) positioned on the upper and lower sides of the Reset pressing catches (6) are respectively provided with a pit groove (21) with a chamfer angle, and the U-shaped double-layer silica gel sheet (22) is hermetically buckled with the pit groove (21).

5. The waterproof structure of a leakage protection plug according to claim 4, wherein: the tail end of the U-shaped double-layer silica gel sheet (22) is provided with a semicircular design which is matched with a chamfer design of the Reset pressing brake (6).

6. A water-proof structure of a leakage protection plug according to any one of claims 3 to 5, wherein: a gap is arranged between the double-layer silica gel sheet (22) and the waterproof silica gel pad (5), and the gap is a U-shaped open slot (18).

7. A water-proof structure of a leakage protection plug according to claim 2, wherein: the face shell (1) is also provided with a silica gel pressing plate (4) used for fixing a waterproof silica gel pad (5).

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