CN114400476A

CN114400476A - Wall opening device

Info

Publication number: CN114400476A
Application number: CN202210014516.6A
Authority: CN
Inventors: 彭美南; 吴礼红; 江艳蕊
Original assignee: Ningbo Gongniu Electric Appliances Co Ltd
Current assignee: Ningbo Gongniu Electric Appliances Co Ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-04-26

Abstract

The invention relates to the technical field of electric devices, in particular to a wall opening device; the wall opening device comprises a wall opening device body and a projection assembly; the projection assembly is arranged on the wall opening device body and is electrically connected with the wall opening device body; the projection assembly comprises a light source and a light transmitting sheet with patterns, the light transmitting sheet is provided with a light inlet surface and a light outlet surface, and light rays emitted by the light source can enter from the light inlet surface and exit from the light outlet surface so as to project the patterns. The wall opening device has the functions of prompting and indicating, can reduce the complexity of decoration and configuration of a place using the wall opening device, saves space, and is time-saving and labor-saving.

Description

Wall opening device

Technical Field

The invention relates to the technical field of electric devices, in particular to a wall opening device.

Background

The wall opening device comprises a wall opening socket or a wall opening switch and the like; the wall opening device has wide application in work and life. The wall opening device provided by the related technology can be also provided with a foot lamp, and the foot lamp has the function of illumination, cannot indicate and has a single function; since the wall opening device with the foot lamp has no indication function, when the wall opening device with the foot lamp is used in places such as libraries, cinemas and the like, in order to guide people to move to places such as emergency exits, corridors and the like, an indication strip or a guide indication device with the functions of position indication and guidance is usually required to be additionally arranged and adhered at a relevant position.

The wall opening device provided by the related technology has no indication function, so that decoration and configuration of related places are complex, space cannot be saved, and more labor and time are required to be invested.

Disclosure of Invention

The invention aims to provide a wall opening device which has the functions of prompting and indicating, can reduce the complexity of decoration and configuration of a place using the wall opening device, saves space and saves time and labor.

The embodiment of the invention is realized by the following steps:

the invention provides a wall opening device, comprising:

a wall opening device body;

the projection assembly is arranged on the wall opening device body and is electrically connected with the wall opening device body; the projection assembly comprises a light source and a light transmitting sheet with patterns, the light transmitting sheet is provided with a light inlet surface and a light outlet surface, and light rays emitted by the light source can enter from the light inlet surface and exit from the light outlet surface so as to project the patterns.

In an optional embodiment, the projection assembly further includes a convex lens, and the convex lens is disposed opposite to the light exit surface, so that the pattern projected by the light-transmitting sheet can be magnified by the convex lens.

In an alternative embodiment, the convex lens has an entrance face and an exit face, the entrance face being a plane and the exit face being a convex face.

In an optional embodiment, the projection assembly further includes a lens barrel, and the light source, the light transmissive sheet and the convex lens are sequentially disposed at intervals along a length extending direction of the lens barrel.

In an alternative embodiment, at least one of the light source, the light-transmitting sheet and the convex lens is inserted into the lens barrel.

In an optional embodiment, the wall opening device body is provided with a mounting part, a lens barrel is connected with the mounting part, and the light source, the light transmitting sheet and the convex lens are arranged between the mounting part and the lens barrel; and/or the presence of a gas in the gas,

the wall opening device body comprises a base and a wall opening component, the base is provided with an assembling portion and an installing portion, the assembling portion is distributed in the middle of the base, the installing portion is distributed in the position, close to the periphery of the base, of the assembling portion, and the wall opening component is assembled in the assembling portion.

In an alternative embodiment, the lens barrel is inserted into the mount portion.

In an optional embodiment, one of the lens barrel and the mounting portion is connected with a plug-in post, and the other of the lens barrel and the mounting portion is provided with a plug-in hole, and the plug-in post is in plug-in fit with the plug-in hole.

In an optional embodiment, the lens barrel is further connected with an assembly part, the light-transmitting sheet is inserted into the assembly part, and the assembly part is inserted into the mounting part; and/or the presence of a gas in the gas,

the assembly part is provided with a guide surface which can be in sliding fit with the mounting part so as to guide the assembly part to be inserted into the mounting part; and/or the presence of a gas in the gas,

the assembly part comprises a first extension plate, an arc plate and a second extension plate which are sequentially connected, the arc plate is connected with the lens barrel, the first extension plate and the second extension plate are opposite and distributed at intervals, the first extension plate and the second extension plate are both protruded relative to the lens barrel, and the light-transmitting sheet is simultaneously in inserting fit with the first extension plate, the arc plate and the second extension plate; one side that first extension board deviates from the second and extends the board to and the second extends the board and deviates from one side of first extension board and all is provided with the spigot surface.

In an optional embodiment, the wall opening device further comprises a transformation assembly, and the light source is electrically connected with the wall opening device body through the transformation assembly.

The wall opening device of the embodiment of the invention has the beneficial effects that:

the wall opening device provided by the embodiment of the invention comprises a wall opening device body and a projection assembly, wherein the projection assembly is arranged on the wall opening device body and is electrically connected with the wall opening device body; the projection assembly comprises a light source and a light transmitting sheet with patterns, the light transmitting sheet is provided with a light inlet surface and a light outlet surface, and light rays emitted by the light source can enter from the light inlet surface and exit from the light outlet surface so as to project the patterns. Because the light-transmitting sheet has patterns, the projection assembly can project various indication patterns, such as: the wall opening device has the advantages that the indicating arrow and the safety exit are indicated, so that the wall opening device has the functions of prompting and indicating, the decoration and configuration complexity of the site using the wall opening device can be reduced, the space is saved, and the time and the labor are saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is an exploded view of a wall opening device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a projection module according to an embodiment of the invention;

FIG. 3 is a schematic view of a convex lens refraction;

fig. 4 is a schematic structural diagram of a lens barrel according to an embodiment of the present invention;

fig. 5 is an enlarged view of v in fig. 1.

Icon: 010-a wall opening device; 100-opening the device body; 110-a base; 111-a mounting portion; 112-a first assembly groove; 113-a second mounting groove; 114-a third mounting groove; 115-a fitting; 120-wall opening assembly; 130-a panel; 131-a through hole; 132-a panel body; 133-frame; 200-a projection assembly; 201-a light source; 202-a light transmissive sheet; 203-convex lens; 210-a lens barrel; 211-a plug-in column; 212-a plug hole; 213-first slot; 214-a second slot; 215-a third slot; 220-a fitting; 221-a guide surface; 222-a first extension panel; 223-arc-shaped plates; 224-second extension plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements that are 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," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides a wall opening device 010, which may be a wall opening socket; of course, in other embodiments, the wall opening device 010 may also refer to a wall opening switch, and the like, and is not limited herein.

The wall opening device 010 includes a wall opening device body 100, the wall opening device body 100 includes a base 110, a panel 130 and a wall opening component 120, the wall opening component 120 is disposed on the base 110, and the panel 130 is fastened and connected with the base 110; the wall opening assembly 120 may be a socket assembly that can be used to plug in electrical devices so that the electrical devices can access electricity through the wall opening assembly 120. Optionally, the base 110 is removably coupled to the faceplate 130. It should be noted that the wall opening assembly 120 includes, but is not limited to, a three-hole wall opening assembly, a two-hole wall opening assembly, and a USB wall opening assembly.

Referring to fig. 1 and 2, the wall opening device 010 of the present embodiment further includes a projection assembly 200, and the projection assembly 200 is disposed on the wall opening device body 100; and the projection assembly 200 is electrically connected with the wall opening device body 100; the projection assembly 200 includes a light source 201 and a light transmissive sheet 202 having a pattern, the light transmissive sheet 202 has a light incident surface and a light emitting surface, and light emitted from the light source 201 can be incident from the light incident surface and emitted from the light emitting surface to project the pattern. Because the light-transmitting sheet 202 has a pattern, the projection assembly 200 can project various indication patterns, such as: instruct arrow point or export security to instruct etc, so the wall is opened device 010 is from being equipped with the suggestion, indicative function, be equipped with the place that the wall opened device 010, do not need extra setting, paste and have the instruction, the instruction strip or the indicating device of guide effect, only need the assembly wall to open device 010 can obtain simultaneously and instruct, the suggestion, the effect of guide, thereby can reduce the fitment that uses this wall to open the place of device 010, the configuration complexity, save space, time saving and labor saving, in order to satisfy user demand and experience.

The projection assembly 200 further includes a convex lens 203, and the convex lens 203 is disposed opposite to the light exit surface, so that the pattern projected by the light transmissive sheet 202 can be magnified by the convex lens 203. So set up, after light that light source 201 sent passes through printing opacity piece 202, the pattern on the printing opacity piece 202 is thrown to convex lens 203, enlargies and throws out the pattern through refracting effect, can ensure that the pattern that projection subassembly 200 throws out is enlarged, and then ensures that the suggestion of projection subassembly 200, the warning effect is outstanding, satisfies the user demand.

Further, the convex lens 203 of the present embodiment has an incident surface and an exit surface, the incident surface is a plane, and the exit surface is a convex surface. Of course, in other embodiments, both the entrance surface and the exit surface of the convex lens 203 are convex.

Please refer to fig. 3, in the present embodiment, the incident surface of the convex lens 203 is a plane, and the exit surface is a convex surface, that is, the convex lens 203 is a plano-convex lens 203, and the method for calculating the focal length thereof includes:

the straight line AA' is parallel to the incident light of the optical axis, and the spherical surface of the convex lens 203 is on the point A;

the straight line AA 'is vertical to the optical axis, the intersection point of the straight line AA' and the optical axis is A ', and the length of the straight line AA' is h;

o is the spherical center (spherical radius r) of the spherical surface of the planoconvex lens 203 and is connected with a straight line OA, and the straight line OA is the normal of the incident light ray AA';

making a tangent line AB of the spherical surface of the convex lens 203 through the point A, and intersecting the optical axis at the point B to obtain an OA vertical AB;

the intersection point of the emergent ray and the optical axis F is a focus;

the calculation process comprises the following steps:

(1) calculating the sine value of the incident angle:

because AA' is parallel to the optical axis OF,

therefore, the incident angle & lt a' AO & lt AOB,

then: sin (AO) ═ Sin (aob) ═ h/r

The following can be obtained: symbol AOB ═ Arc Sin (h/r)

(2) Calculating the sine value of the emergence angle:

setting: the refractive index of the material used for the convex lens 203 is n

The sine of the exit angle Sin (, O 'AF) ═ n × Sin (, a' AO) ═ n × (h/r) ═ h × n/r,

namely: sin (, O' AF) ═ h × n)/r,

the following can be obtained: angle O' AF ═ Arc Sin [ (h x n)/r ]

(3) Calculating the length OF:

because < O' AF ═ AOB + < AFO

Namely: the angle AFO is equal to angle O' AF-AOB is equal to Arc Sin [ (h multiplied by n)/r ] -Arc Sin (h/r),

and because the sine theorem can obtain:

OF＝r×Sin(∠OAF)/Sin(∠AFO)＝r×Sin(∠O'AF)/Sin(∠AFO)

＝r×[(h×n)/r]/Sin{Arc Sin[(h×n)/r]-Arc Sin(h/r)}

＝n×(n×√(r²-h²)+√(r²-h²×n²)/(n²-1)

let h → 0, available OF ═ nr/(n-1)

(4) Calculating the focal length f:

one surface is a plane convex lens 203, the thickness is approximately zero, the optical center can be approximately regarded as the center of a circle of the plane,

then: and the focal length f is OF-r is r/(n-1).

It should be noted that, in order to ensure that the image projected by the projection assembly 200 is enlarged, the object distance is u, the image distance is v, and the focal length is f, the three may be configured to satisfy: f < u < 2f and v > 2f, or u < f and v > f. When u > 2f and f < v < 2f, the projected image is reduced; when u is 2f and v is 2f, the projected image is equal to the original image size of the light-transmitting sheet 202; when u ═ f, no image is formed.

Referring to fig. 1, a through hole 131 is formed at the bottom of the panel 130, and the projection assembly 200 is opposite to the through hole 131, so that the light passing through the convex lens 203 can be projected from the through hole 131. When the wall opening device 010 is mounted to a wall surface, a pattern projected from the through hole 131 may be projected to the ground. In other embodiments, the through hole 131 may be opened on a side of the panel 130 away from the base 110, and when the wall opening device 010 is mounted on a wall surface, the pattern projected from the through hole 131 may be projected on the opposite wall surface.

Referring to fig. 2 and 4, the projection assembly 200 further includes a lens barrel 210, and the light source 201, the light transmissive sheet 202 and the convex lens 203 are sequentially disposed at intervals on the lens barrel 210 along a length extending direction of the lens barrel 210. With the arrangement, on one hand, light emitted by the light source 201 can be reliably transmitted through the light-transmitting sheet 202 with the pattern and then refracted through the convex lens 203; on the other hand, the light source 201, the light-transmitting sheet 202 and the convex lens 203 can be assembled to the lens barrel 210 and then integrally assembled to the wall-mounted device body 100, so that the easy assembly of the projection assembly 200 is ensured.

At least one of the light source 201, the light-transmitting sheet 202 and the convex lens 203 is inserted into the lens barrel 210. By the plug-in fitting, easy assembly of the projection assembly 200 can be ensured.

In this embodiment, the light source 201, the light-transmitting sheet 202 and the convex lens 203 are all inserted into the lens barrel 210; with such an arrangement, after the light source 201, the light-transmitting sheet 202 and the convex lens 203 are assembled on the lens barrel 210, the assembled projection assembly 200 is integrally assembled on the wall opening device body 100, so that the easy assembly of the projection assembly 200 is ensured.

It should be understood that, in other embodiments, the projection assembly 200 may also be assembled by first assembling the light source 201, the light transmissive sheet 202 and the convex lens 203 on the wall opening device body 100, and then fastening the lens barrel 210 to the wall opening device body 100, and disposing the light source 201, the light transmissive sheet 202 and the convex lens 203 between the lens barrel 210 and the wall opening device body 100, so as to ensure the reliability of the light source 201, the light transmissive sheet 202 and the convex lens 203 assembled on the wall opening device body 100.

Further, referring to fig. 2 and 4, the lens barrel 210 is provided with a first slot 213, a second slot 214 and a third slot 215, the first slot 213, the second slot 214 and the third slot 215 are respectively matched with the light source 201, the light-transmitting sheet 202 and the convex lens 203, and the first slot 213, the second slot 214 and the third slot 215 are respectively used for inserting the light source 201, the light-transmitting sheet 202 and the convex lens 203.

Optionally, the first slot 213 is adapted to the light source 201, the light source 201 is substantially cylindrical, the first slot 213 is an arc-shaped groove, the light source 201 is inserted into the first slot 213, and an outer side wall of the light source 201 is tightly attached to a side wall of the first slot 213, so as to ensure the reliability of the insertion of the light source 201 and the first slot. Further, the convex lens 203 is substantially circular, the third slot 215 is matched with the convex lens 203, the third slot 215 is an arc-shaped groove, the convex lens 203 is tightly inserted into the third slot 215, and the outer periphery of the convex lens 203 is tightly attached to the bottom of the third slot 215, so as to ensure the reliability of inserting the convex lens 203 into the third slot 215.

Of course, in other embodiments, the connection manner of at least one of the light source 201, the light-transmitting sheet 202 and the convex lens 203 and the lens barrel 210 may also be bonding, clamping, and the like, and is not limited in particular herein.

Referring to fig. 1, 2 and 5, the wall-opening device body 100 of the present embodiment is provided with a mounting portion 111, a lens barrel 210 connected to the mounting portion 111, and a light source 201, a light-transmitting sheet 202 and a convex lens 203 all disposed between the mounting portion 111 and the lens barrel 210. With this arrangement, the reliability of the assembly of the light source 201, the light transmissive sheet 202, and the convex lens 203 to the wall opening device body 100 can be ensured, and adverse effects of the assembly of the light source 201, the light transmissive sheet 202, and the convex lens 203 on the wall opening assembly 120 of the wall opening device body 100 can be avoided.

Further, the mounting portion 111 is disposed on the base 110, that is, the projection assembly 200 is mounted on the base 110 of the wall opening device body 100; with such an arrangement, the arrangement of the projection module 200 can be effectively prevented from interfering with the assembly and use of the wall opening module 120.

Still further, referring to fig. 1, the base 110 is provided with an assembling portion 115, the assembling portion 115 is approximately distributed in the middle of the base 110, and the mounting portion 111 is distributed at a position close to the periphery of the base 110 relative to the assembling portion 115; the wall opening component 120 is assembled on the assembling portion 115, that is, the wall opening component 120 is assembled approximately in the middle of the base 110, and the mounting portion 111 is disposed at a position close to the outer periphery of the base 110 relative to the wall opening component 120, so as to ensure that the assembly of the wall opening component 120 is not interfered by the mounting portion 111 and the projection component 200 assembled on the mounting portion 111, on one hand, the production convenience of the wall opening device 010 is ensured, on the other hand, the wall opening component 120 does not need to be additionally designed and produced, and the cost is prevented from increasing.

Optionally, the panel 130 includes a panel body 132 and a frame 133 connected to the panel body 132, the frame 133 surrounds the periphery of the panel body 132, the frame 133 is provided with a through hole 131, and the panel body 132 is provided with an insertion hole for an insertion plug; thus, the installation of the through hole 131 does not interfere with the opening of the insertion hole in the panel body 132, and the structural strength of the panel 130 can be ensured without resetting the panel 130.

In order to ensure easy assembly of the projection unit 200, the lens barrel 210 is inserted into the mounting portion 111.

Further, with continued reference to fig. 2 and 5, the lens barrel 210 is provided with a plug-in post 211, the mounting portion 111 is provided with a plug-in hole 212, and the plug-in post 211 is in plug-in fit with the plug-in hole 212. Of course, in other embodiments, the lens barrel 210 is provided with the insertion hole 212, the mounting portion 111 is provided with the insertion column 211, and the insertion column 211 is inserted into and matched with the insertion hole 212.

It should be noted that the insertion column 211 is configured to be tightly inserted into the insertion hole 212, so as to form an interference fit therebetween, thereby ensuring the reliability of inserting the lens barrel 210 into the mounting portion 111, and ensuring the reliability of assembling the projection assembly 200 to the wall opening device body 100.

The number of the inserting columns 211 and the number of the inserting holes 212 can be selected as required, the lens barrel 210 of the embodiment is connected with four inserting columns 211, the four inserting columns 211 are distributed in a rectangular array, the mounting portion 111 is provided with four inserting holes 212, and the four inserting columns 211 are in one-to-one inserting matching. Of course, in other embodiments, the number of the plug posts 211 and the plug holes 212 may be one, two, three, etc.

It should be understood that in other embodiments, the lens barrel 210 and the mounting portion 111 may be connected by bonding or fastening with a fastener such as a screw, and the like, and is not limited in particular.

Referring to fig. 5, the mounting portion 111 of the present embodiment is provided with a first mounting groove 112, a second mounting groove 113 and a third mounting groove 114, when the projection assembly 200 is disposed on the wall-opening apparatus body 100, the light source 201 is inserted into the first mounting groove 112, the light-transmitting plate 202 is inserted into the second mounting groove 113, and the convex lens 203 is inserted into the third mounting groove 114, so as to ensure the reliability of the light source 201, the light-transmitting plate 202 and the convex lens 203 mounted on the wall-opening apparatus body 100.

It should be noted that, the lens barrel 210 is inserted into the mounting portion 111, and the light transmissive sheet 202 is inserted into the lens barrel 210, so that the panel 130 and the base 110 can be detached conveniently, and when the lens barrel 210 is detached from the mounting portion 111, the light transmissive sheet 202 can be detached, so as to replace the light transmissive sheet 202 with different patterns and different colors, thereby ensuring the application flexibility of the prompt function of the wall opening device 010.

Further, referring to fig. 2 and 4, the lens barrel 210 is further connected with an assembly member 220, the light-transmitting sheet 202 is inserted into the assembly member 220, and the assembly member 220 is inserted into the mounting portion 111; specifically, the assembly member 220 is provided with a second slot 214, and the light-transmitting sheet 202 is inserted into the assembly member 220; when the lens barrel 210 is inserted into the mounting portion 111, the assembly member 220 can be inserted into the second assembly groove 113, so that the light-transmitting sheet 202 is inserted into the second assembly groove 113, and the light-transmitting sheet 202 can be reliably disposed on the wall opening device body 100; moreover, by inserting the fitting 220 into the second fitting groove 113 provided in the mount portion 111, it is also possible to ensure stability of the assembly of the lens barrel 210 with the mount portion 111, and to facilitate the assembly positioning of the lens barrel 210 when the lens barrel 210 is assembled to the mount portion 111, ensuring accuracy of the assembly of the lens barrel 210.

Optionally, the assembly member 220 includes a first extension plate 222, an arc-shaped plate 223 and a second extension plate 224, which are connected in sequence, so that the assembly member 220 is a substantially U-shaped assembly plate, and the light-transmitting sheet 202 is simultaneously in insertion fit with the first extension plate 222, the arc-shaped plate 223 and the second extension plate 224, that is, a groove formed in the first extension plate 222, a groove formed in the arc-shaped plate 223 and a groove formed in the second extension plate 224 are sequentially communicated, and form the second slot 214; the arc-shaped plate 223 is connected with the lens barrel 210, the first extension plate 222 and the second extension plate 224 are opposite and distributed at intervals, and both the first extension plate 222 and the second extension plate 224 are protruded relative to the lens barrel 210; when the lens barrel 210 is assembled on the mounting portion 111, the first extending plate 222 and the second extending plate 224 can be inserted into the second assembling groove 113, so that the reliability of assembling the lens barrel 210 on the mounting portion 111 can be ensured, and by the insertion fit of the first extending plate 222 and the second extending plate 224 with the second assembling groove 113, the accurate positioning of assembling the lens barrel 210 on the mounting portion 111 can be ensured, so that the assembling accuracy is ensured.

Referring to fig. 4, the assembly member 220 is provided with a guide surface 221, and the guide surface 221 of the light-transmitting sheet 202 can be slidably fitted with the mounting portion 111 of the light-transmitting sheet 202 to guide the assembly member 220 of the light-transmitting sheet 202 to be inserted into the mounting portion 111 of the light-transmitting sheet 202; optionally, a side of the first extending plate 222 facing away from the second extending plate 224 is provided with a guiding surface 221, a side of the second extending plate 224 facing away from the first extending plate 222 is also provided with a guiding surface 221, and when the lens barrel 210 is assembled on the mounting portion 111, the guiding surface 221 provided by at least one of the first extending plate 222 and the second extending plate 224 can be in sliding fit with a groove wall of the second assembling groove 113, so as to ensure reliability of inserting and matching the lens barrel 210 with the mounting portion 111 and accuracy of positioning.

Further, the distance between the guide surface 221 provided by the first extension plate 222 and the guide surface 221 provided by the second extension plate 224 gradually decreases from the end close to the arc plate 223 to the end far from the arc plate 223; with this arrangement, it is possible to ensure reliability in guiding the movement of the lens barrel 210 by the guide surface 221 when the guide surface 221 is fitted to the mount portion 111 with respect to the lens barrel 210.

The wall opening device 010 of this embodiment further includes a transformer assembly (not shown), the light source 201 is electrically connected to the wall opening device body 100 through the transformer assembly, specifically, the transformer assembly is disposed on the base 110 and electrically connected to the wall opening assembly 120, so that the light source 201 can get electricity from the wall opening assembly 120 through the transformer assembly; so set up, can protect light source 201 through the vary voltage subassembly, avoid high voltage to cause the damage to light source 201.

It should be noted that the light source 201 includes, but is not limited to, an LED lamp, and the transformer component includes, but is not limited to, a transformer resistor.

The wall opening device 010 provided by this embodiment not only can enable an electric device to be plugged with the wall opening component 120 so as to get electricity through the wall opening component 120; the projection assembly 200 can be used to project arrows, exit indication patterns and the like to play roles of prompting and indicating.

In conclusion, the wall opening device 010 of the present invention has the functions of prompting and indicating, so that the complexity of decoration and configuration of a place where the wall opening device 010 is used can be reduced, the space can be saved, and the time and the labor can be saved.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wall opening device, comprising:

a wall opening device body (100);

the projection assembly (200) is arranged on the wall opening device body (100), and the projection assembly (200) is electrically connected with the wall opening device body (100); the projection assembly (200) comprises a light source (201) and a light transmitting sheet (202) with patterns, wherein the light transmitting sheet (202) is provided with a light inlet surface and a light outlet surface, and light rays emitted by the light source (201) can be incident from the light inlet surface and emitted from the light outlet surface to project the patterns.

2. The wall opening device according to claim 1, wherein the projection assembly (200) further comprises a convex lens (203), and the convex lens (203) is disposed opposite to the light emitting surface so that the pattern projected by the light transmissive sheet (202) can be magnified by the convex lens (203).

3. A wall opening device according to claim 2, wherein the convex lens (203) has an entrance face and an exit face, the entrance face being planar and the exit face being convex.

4. The wall opening device according to claim 2, wherein the projection assembly (200) further comprises a lens barrel (210), and the light source (201), the light-transmitting sheet (202) and the convex lens (203) are sequentially arranged at intervals on the lens barrel (210) along a length extension direction of the lens barrel (210).

5. A wall opening device according to claim 4, wherein at least one of the light source (201), the light-transmitting sheet (202) and the convex lens (203) is inserted into the lens barrel (210).

6. The wall opening device according to claim 4, wherein the wall opening device body (100) is provided with a mounting part (111), the lens barrel (210) is connected with the mounting part (111), and the light source (201), the light transmitting sheet (202) and the convex lens (203) are all arranged between the mounting part (111) and the lens barrel (210); and/or the presence of a gas in the gas,

device body (100) is opened to wall includes base (110) and wall and opens subassembly (120), base (110) be provided with assembly portion (115) with installation department (111), assembly portion (115) distribute in the middle part of base (110), installation department (111) for assembly portion (115) distribute in being close to the position of the periphery of base (110), the wall open subassembly (120) assemble in assembly portion (115).

7. A wall opening device according to claim 6, wherein the barrel (210) is plugged into the mounting portion (111).

8. A wall opening device according to claim 7, wherein one of the lens barrel (210) and the mounting portion (111) is connected with a plug-in post (211), the other one of the lens barrel (210) and the mounting portion (111) is provided with a plug-in hole (212), and the plug-in post (211) is in plug-in fit with the plug-in hole (212).

9. A wall opening device according to claim 7, wherein a fitting part (220) is further connected to the lens barrel (210), the light-transmitting sheet (202) is inserted into the fitting part (220), and the fitting part (220) is inserted into the mounting part (111); and/or the presence of a gas in the gas,

the assembly part (220) is provided with a guide surface (221), and the guide surface (221) can be in sliding fit with the mounting part (111) to guide the assembly part (220) to be plugged with the mounting part (111); and/or the presence of a gas in the gas,

the assembly part (220) comprises a first extension plate (222), an arc plate (223) and a second extension plate (224) which are connected in sequence, the arc plate (223) is connected with the lens barrel (210), the first extension plate (222) and the second extension plate (224) are distributed oppositely and at intervals, the first extension plate (222) and the second extension plate (224) both protrude relative to the lens barrel (210), and the light-transmitting sheet (202) is simultaneously in plug-in fit with the first extension plate (222), the arc plate (223) and the second extension plate (224); the side of the first extension plate (222) facing away from the second extension plate (224) and the side of the second extension plate (224) facing away from the first extension plate (222) are both provided with the guide surface (221).

10. A wall opening device according to claim 1, further comprising a voltage transformation assembly, through which the light source (201) is electrically connected to the wall opening device body (100).