Smoke detector main structure with inner and outer mazes and smoke detector

Abstract

The utility model discloses a smoke detector main structure with inner and outer mazes and a smoke detector. The smoke detector main structure with the inner labyrinth and the outer labyrinth comprises a top cover, an outer labyrinth piece and a mask which are sequentially arranged in the axial direction, the top cover comprises a top cover outer piece and a top cover inner piece, the top cover outer piece is provided with a protruding body, the top cover inner piece is provided with a contact structure, and the protruding body and the contact structure are matched in a clamped mode. The smoke detector main structure with the inner and outer mazes and the smoke detector have the beneficial effects that the top cover adopts a split type disassembly design scheme, and after the top cover outer piece and the top cover inner piece are screwed and matched, the contacts are just conducted to complete power-on, and an independent power-on mechanism is not needed any more.

Description

Technical Field

[0001] The utility model belongs to the field of smoke detection, and in particular relates to a smoke detector main structure with inner and outer mazes and a smoke detector. Background Art

[0002] The publication number is CN209728989U, the subject name is a utility model patent for a detachable smoke detector, and its IPC classification number is G08B17 / 103. Its technical solution discloses "including a cooperating and fixed positioning ring 9 and annular groove 14, a rotary hook A10 and a rotary hole A15, a column cavity 12 and a light guide column 19, a straight slot 16 and a straight hook 25, a hook foot 18 and a foot hole 20, a retaining ring 21 and a through hole 23, a positioning frame 24 and PCB5, a rotary hook B27 and a rotary hole B29, etc., so that the rotary cap 1, the upper cover 2, the labyrinth piece 3, the labyrinth seat 4, the PCB5, the middle seat 6 and the bottom cover 7 can be manually disassembled from each other, and the labyrinth piece 3, the labyrinth seat 4, the PCB5 itself and the electronic components on the PCB5 are limited and stable."

[0003] See the attachment of the above utility model patent Figure 1-2 This utility model patent is a typical "flying saucer-style" smoke detector. Although a labyrinth 14 is built in, the multiple smoke inlets 13 cause the labyrinth 14 to be fully exposed, making it easy for mosquitoes to easily enter the detector, resulting in a general insect prevention effect. The high frequency of mosquitoes entering the detector easily leads to repeated false alarms.

[0004] In addition, in order to avoid the wrong power-on during transportation, the existing smoke detectors usually use a power-on mechanism with an insulating pull tab as the main body. When the user starts to use the smoke detector, he needs to manually remove the insulating pull tab after opening the outer cover of the detector so that the power-on mechanism can work normally. In fact, the applicant believes that the power-on mechanism can be further simplified and improved to further enhance the user experience. Utility Model Content

[0005] The utility model aims at the prior art, overcomes the above defects and provides a smoke detector main structure with inner and outer mazes and a smoke detector.

[0006] The utility model adopts the following technical scheme, and has a main structure of a smoke detector with an inner and outer labyrinth, including a top cover, an outer labyrinth piece and a mask arranged in sequence along the axial direction, wherein:

[0007] The top cover comprises a top cover outer part and a top cover inner part, the top cover outer part is provided with a protrusion, the top cover inner part is provided with a contact structure, and the protrusion and the contact structure are tightly matched;

[0008] The outer labyrinth piece is internally provided with a positioning bracket and an inner labyrinth piece, a gap is provided between the outer labyrinth piece and the inner labyrinth piece, and the inner labyrinth piece is internally provided with the positioning bracket.

[0009] As a preferred technical solution of the above technical solution, the protrusion includes a main body and a contraction portion, the main body and the contraction portion are integrally formed, and the contraction portion has a contraction portion slope.

[0010] As a preferred technical solution of the above technical solution, the contact structure includes a contact body and an elastic part, one end of the elastic part is integrally formed with the main body of the top cover inner part, and the contact body is located at the other end of the elastic part.

[0011] As a preferred technical solution of the above technical solution, there is a contact gap between the contact body and the body of the top cover inner part, and there is a contact gap between the elastic part and the body of the top cover inner part. As a preferred technical solution of the above technical solution, the outer labyrinth part includes a first labyrinth structure and a second labyrinth structure, and the first labyrinth structure and the second labyrinth structure are interlocked and connected.

[0012] As a preferred technical scheme of the above technical scheme, the first maze structure includes a first annular maze covering plate and a plurality of first maze vertical bars arranged along the axial direction, each first maze vertical bar is located on the inner side of the first maze covering plate and is respectively fixedly connected to the first maze covering plate, each first maze annular bar is located on the outer side of the first maze vertical bar and is respectively fixedly connected to each first maze vertical bar, there is a gap between adjacent first maze vertical bars, there is a gap between adjacent first maze annular bars, and there is a first maze gap between adjacent first maze vertical bars and the first maze annular bars.

[0013] As a preferred technical scheme of the above technical scheme, the second maze structure includes a ring-shaped second maze covering plate and a plurality of second maze vertical bars arranged along the axial direction, each second maze vertical bar is located on the inner side of the second maze covering plate and is respectively fixedly connected to the second maze covering plate, each second maze annular bar is located on the outer side of the second maze vertical bar and is respectively fixedly connected to each second maze vertical bar, there is a gap between adjacent second maze vertical bars, there is a gap between adjacent second maze annular bars, and there is a second maze gap between adjacent second maze vertical bars and second maze annular bars.

[0014] As a preferred technical solution of the above technical solution, the first labyrinth gap and the second labyrinth gap are staggered.

[0015] As a preferred technical scheme of the above technical scheme, the inner labyrinth piece includes an annular inner labyrinth positioning bar and a plurality of inner labyrinth vertical bars arranged along the axial direction, each inner labyrinth vertical bar is located on the inner side of the inner labyrinth positioning bar and is respectively fixedly connected to the inner labyrinth positioning bar, each inner labyrinth annular bar is located on the outer side of the inner labyrinth vertical bar and is respectively fixedly connected to each inner labyrinth vertical bar, there is a gap between adjacent inner labyrinth vertical bars, there is a gap between adjacent inner labyrinth annular bars, and there is an inner labyrinth gap between adjacent inner labyrinth vertical bars and the inner labyrinth annular bar.

[0016] The present application also discloses a smoke detector, comprising a smoke detector main structure with an inner and outer maze according to any one of the above technical solutions, the smoke detector also comprising a smoke probe and a PCB board, and the smoke probe is electrically connected to the PCB board.

[0017] The smoke detector main structure with inner and outer mazes and the smoke detector disclosed in the utility model have the following beneficial effects:

[0018] Firstly, a double inner and outer maze structure is provided, and at the same time, the outer maze piece is further strengthened with the first and second maze structures interlocking with each other, which effectively reduces the possibility of mosquitoes mistakenly entering the detector.

[0019] Secondly, the top cover adopts a split opening and disassembly design. After the top cover outer part and the top cover inner part are screwed together, the contacts are just connected to complete the power-on (power-on), and an independent power-on mechanism is no longer needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of this application from one viewing angle.

[0021] Figure 2 It is a three-dimensional structural schematic diagram from another viewing angle of the present application.

[0022] Figure 3 It is the main schematic diagram of this application.

[0023] Figure 4 is along Figure 3 Schematic diagram of the cross-sectional structure in the AA direction.

[0024] Figure 5 It is a schematic diagram of the exploded structure from one perspective of the present application.

[0025] Figure 6 It is a schematic diagram of the explosion structure from another perspective of the present application.

[0026] Figure 7 It is a schematic diagram of the structure of the outer labyrinth component of the present application.

[0027] Figure 8It is a structural schematic diagram of the first maze structure of the present application.

[0028] Fig. 9 It is a structural schematic diagram of the second maze structure of the present application.

[0029] Fig.10 It is a schematic diagram of the structure of the inner labyrinth component of the present application.

[0030] Fig.11 It is a schematic diagram of the structure of the top cover outer part of the present application.

[0031] Fig.12 It is a schematic diagram of the structure of the top cover inner part of the present application.

[0032] The reference numerals include: 100-top cover; 101-top cover outer member; 102-top cover inner member; 110-positioning bracket; 111-positioning fin; 120-protrusion; 121-main body; 122-contraction part; 123-contraction part inclined surface; 130-contact structure; 131-contact body; 132-elastic part; 133-contact gap; 200-outer labyrinth member; 201-gap; 210-first labyrinth structure; 211-first labyrinth sealing plate; 212-first Labyrinth annular strip; 213-first labyrinth vertical strip; 214-first labyrinth gap; 220-second labyrinth structure; 221-second labyrinth sealing plate; 222-second labyrinth annular strip; 223-second labyrinth vertical strip; 224-second labyrinth gap; 300-mask; 400-inner labyrinth piece; 401-inner labyrinth positioning strip; 402-inner labyrinth annular strip; 403-inner labyrinth vertical strip; 404-inner labyrinth gap; 501-smoke detector; 502-PCB board. DETAILED DESCRIPTION

[0033] The utility model discloses a smoke detector main structure with inner and outer mazes and a smoke detector. The following is combined with a preferred embodiment (embodiment 1) and the accompanying drawings. Figure 1-12 , the specific implementation methods of the utility model are further described.

[0034] Example 1.

[0035] Preferably, this embodiment discloses a main structure of a smoke detector having an inner and outer labyrinth (main structure, the same below), comprising a top cover 100, an outer labyrinth 200 and a mask 300 sequentially arranged along the axial direction, wherein:

[0036] The top cover 100 includes a top cover outer member 101 and a top cover inner member 102. The top cover outer member 101 (the side facing the top cover inner member 102) is provided with a protrusion 120, and the top cover inner member 102 (the side facing the top cover outer member 101) is provided with a contact structure 130. The protrusion 120 and the contact structure 130 are tightly matched. When the protrusion 120 and the contact structure 130 are tightly matched, not only the top cover outer member 101 and the top cover inner member 102 are screwed together, but more importantly, the protrusion 120 and the contact structure 130 are fully in contact at this time, and the contact structure 130 is deformed by the pressure of the protrusion 120, so that the smoke detector can be powered on (energized) at the same time.

[0037] The outer labyrinth 200 has a positioning bracket 110 and an inner labyrinth 400 built therein. There is a gap 201 between the outer labyrinth 200 and the inner labyrinth 400 . The inner labyrinth 400 is built in the positioning bracket 110 .

[0038] As a supplementary explanation, the top cover outer part 101 is independently configured separately from the top cover inner part 102 during transportation. At this time, the protrusion 120 and the contact structure 130 are not in contact, so as to avoid power-on caused by accidental touch. When the user starts to use the smoke detector, he only needs to screw the independently configured top cover outer part 101 into the top cover inner part 102. When the top cover outer part 101 and the top cover inner part 102 are tightened, the contact body 131 of the contact structure 130 is compressed by the contraction part 122 of the protrusion 120 and deforms, and the power-on work can be completed at the same time. It can be seen that an independent power-on mechanism is no longer needed, which simplifies the mechanical structure and operation process, and helps to improve the user experience.

[0039] Furthermore, the protrusion 120 includes a main body 121 and a contraction portion 122 , the main body 121 and the contraction portion 122 are integrally formed (made), and the contraction portion 122 has a contraction portion slope 123 .

[0040] Furthermore, the contact structure 130 includes a contact body 131 and an elastic portion 132 , one end of the elastic portion 132 is integrally formed (made) with the main body of the top cover inner member 102 , and the contact body 131 is located at the other end of the elastic portion 132 .

[0041] Furthermore, there is a contact gap 133 between the contact body 131 and the body of the top cover inner part 102, and there is also a contact gap 133 between the elastic part 132 and the body of the top cover inner part 102, so that the contact body 131 and the elastic part 132 can avoid interference with other structural parts such as the body of the top cover inner part 102 during deformation.

[0042] As a supplementary explanation, when the top cover outer part 101 is gradually screwed into the top cover inner part 102, the shrinkage part 122 gradually presses the contact body 131 toward the main body 121 until the top cover outer part 101 and the top cover inner part 102 are completely tightened. At this time, the deformation of the contact body 131 reaches the maximum value, which just turns on the built-in power supply circuit of the main structure of the smoke detector with internal and external mazes.

[0043] Furthermore, the outer labyrinth member 200 includes a first labyrinth structure 210 and a second labyrinth structure 220, and the first labyrinth structure 210 and the second labyrinth structure 220 are interlocked and connected with each other, thereby greatly reducing the possibility of mosquitoes mistakenly entering the detector.

[0044] Furthermore, the first maze structure 210 includes a first annular maze closing plate 211 and a plurality of first maze vertical bars 213 arranged along the axial direction, each of the first maze vertical bars 213 is located on the inner side of the first maze closing plate 211 and is respectively fixedly connected to the first maze closing plate 211, each of the first maze annular bars 212 is located on the outer side of the first maze vertical bars 213 and is respectively fixedly connected to each of the first maze vertical bars 213, there are gaps between adjacent first maze vertical bars 213, there are gaps between adjacent first maze annular bars 212, and finally there are first maze gaps 214 between adjacent first maze vertical bars 213 and first maze annular bars 212 (forming an interlaced maze-like structure).

[0045] Furthermore, the second maze structure 220 includes a ring-shaped second maze closing plate 221 and a plurality of second maze vertical bars 223 arranged along the axial direction, each second maze vertical bar 223 is located on the inner side of the second maze closing plate 221 and is respectively fixedly connected to the second maze closing plate 221, each second maze annular bar 222 is located on the outer side of the second maze vertical bar 223 and is respectively fixedly connected to each second maze vertical bar 223, there are gaps between adjacent second maze vertical bars 223, there are gaps between adjacent second maze annular bars 222, and finally there are second maze gaps 224 between adjacent second maze vertical bars 223 and second maze annular bars 222 (forming an interlaced maze-like structure).

[0046] It is worth mentioning that the first maze gap 214 and the second maze gap 224 are staggered, thereby further reducing the possibility of mosquitoes accidentally entering the detector (avoiding the first maze gap 214 and the second maze gap 224 from being aligned, thereby facilitating mosquitoes to enter the first maze gap 214 and then "go straight through" to the second maze gap 224).

[0047] Furthermore, the inner labyrinth piece 400 includes an annular inner labyrinth positioning strip 401 and a plurality of inner labyrinth vertical strips 403 arranged along the axial direction, each inner labyrinth vertical strip 223 is located on the inner side of the inner labyrinth positioning strip 401 and is respectively fixedly connected to the inner labyrinth positioning strip 401, each inner labyrinth annular strip 402 is located on the outer side of the inner labyrinth vertical strip 403 and is respectively fixedly connected to each inner labyrinth vertical strip 403, there is a gap between adjacent inner labyrinth vertical strips 403, there is a gap between adjacent inner labyrinth annular strips 402, and finally there is an inner labyrinth gap 404 between adjacent inner labyrinth vertical strips 403 and inner labyrinth annular strips 402 (forming an interlaced labyrinth-like structure).

[0048] It is worth mentioning that the inner labyrinth gap 404 is staggered with the first labyrinth gap 214 and the second labyrinth gap 224, thereby further reducing the possibility of mosquitoes mistakenly entering the detector.

[0049] The positioning bracket 110 is provided with a plurality of positioning fins 111 .

[0050] The positioning fins 111 can be arranged on the same side of the positioning bracket 110 (see FIG. Figure 5-6 ), each positioning fin 111 can also be arranged on both sides of the positioning bracket 110 at the same time (not shown in the figure).

[0051] Among them, the number of the positioning fins 111 is preferably 3.

[0052] Example 2.

[0053] Embodiment 2, based on embodiment 1, also includes the following technical solutions.

[0054] Preferably, this embodiment also discloses a smoke detector, which includes a smoke detector main structure with an internal and external maze of any one of the technical solutions in Example 1, and the smoke detector also includes a smoke probe 501 and a PCB board 502, and the smoke probe 501 is electrically connected to the PCB board 502.

[0055] Among them, the number of smoke detectors 501 is preferably 2.

[0056] It is worth mentioning that the technical features such as the specific selection of smoke detectors involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional selection in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0057] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A main structure of a smoke detector with an inner and outer maze, characterized in that: It includes a top cover, an outer labyrinth and a mask which are sequentially arranged along the axial direction, wherein: The top cover comprises a top cover outer part and a top cover inner part, the top cover outer part is provided with a protrusion, the top cover inner part is provided with a contact structure, and the protrusion and the contact structure are tightly matched; The outer labyrinth piece is internally provided with a positioning bracket and an inner labyrinth piece, a gap is provided between the outer labyrinth piece and the inner labyrinth piece, and the inner labyrinth piece is internally provided with the positioning bracket.

2. The main structure of the smoke detector with inner and outer maze according to claim 1, characterized in that: The protrusion comprises a main body and a contraction portion, the main body and the contraction portion are integrally formed, and the contraction portion has a contraction portion slope.

3. The main structure of the smoke detector with inner and outer mazes according to claim 2, characterized in that: The contact structure comprises a contact body and an elastic part, one end of the elastic part is integrally formed with the main body of the top cover inner part, and the contact body is located at the other end of the elastic part.

4. The main structure of the smoke detector with inner and outer mazes according to claim 3, characterized in that: A contact gap is provided between the contact body and the main body of the top cover inner component, and a contact gap is provided between the elastic part and the main body of the top cover inner component.

5. The main structure of the smoke detector with inner and outer mazes according to claim 1, characterized in that: The outer labyrinth element comprises a first labyrinth structure and a second labyrinth structure, and the first labyrinth structure and the second labyrinth structure are interlocked and connected with each other.

6. The main structure of the smoke detector with inner and outer mazes according to claim 5, characterized in that: The first maze structure includes a first annular maze closing plate and a plurality of first maze vertical bars arranged along the axial direction, each first maze vertical bar is located on the inner side of the first maze closing plate and is fixedly connected to the first maze closing plate, each first maze annular bar is located on the outer side of the first maze vertical bar and is fixedly connected to each first maze vertical bar, there are gaps between adjacent first maze vertical bars, there are gaps between adjacent first maze annular bars, and there are first maze gaps between adjacent first maze vertical bars and first maze annular bars.

7. The main structure of the smoke detector with inner and outer mazes according to claim 6, characterized in that: The second maze structure includes a ring-shaped second maze covering plate and a plurality of second maze vertical bars arranged along the axial direction, each second maze vertical bar is located on the inner side of the second maze covering plate and is respectively fixedly connected to the second maze covering plate, each second maze annular bar is located on the outer side of the second maze vertical bar and is respectively fixedly connected to each second maze vertical bar, there are gaps between adjacent second maze vertical bars, there are gaps between adjacent second maze annular bars, and there are second maze gaps between adjacent second maze vertical bars and second maze annular bars.

8. The main structure of the smoke detector with inner and outer mazes according to claim 7, characterized in that: The first labyrinth gap and the second labyrinth gap are arranged in a staggered manner.

9. The main structure of the smoke detector with inner and outer mazes according to claim 1, characterized in that: The inner labyrinth piece includes an annular inner labyrinth positioning bar and a plurality of inner labyrinth vertical bars arranged along the axial direction, each inner labyrinth vertical bar is located on the inner side of the inner labyrinth positioning bar and is fixedly connected to the inner labyrinth positioning bar respectively, each inner labyrinth annular bar is located on the outer side of the inner labyrinth vertical bar and is fixedly connected to each inner labyrinth vertical bar respectively, there is a gap between adjacent inner labyrinth vertical bars, there is a gap between adjacent inner labyrinth annular bars, and there is an inner labyrinth gap between adjacent inner labyrinth vertical bars and the inner labyrinth annular bar.

10. A smoke detector, characterized in that: The invention comprises a main structure of a smoke detector having an inner and outer maze according to any one of claims 1 to 9, wherein the smoke detector further comprises a smoke probe and a PCB board, and the smoke probe is electrically connected to the PCB board.

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