Smoke detector labyrinth structure

Abstract

The utility model discloses a smoke detector labyrinth structure, which comprises a base, a top cover and a side baffle, the side baffle is divided into a first baffle sheet and a second baffle sheet, a protruding area and a concave area are formed on the side edge where the first baffle sheet and the second baffle sheet are connected, and the protruding area is arranged towards the adjacent concave area. The blocking pieces can be conveniently arranged through the bent part structure, the protruding area and the inwards-concave area can block light, under the condition that the length of the second blocking piece is larger than that of the first blocking piece, the length of the first blocking piece is smaller than that of the second blocking piece, and an included angle is formed through the longer second blocking piece; the space occupation of the side baffle in the annular direction surrounding the base replaces the space occupation towards the center direction, the space occupation extending towards the center direction of the ventilation cavity is reduced, and the size miniaturization of the smoke detector shell is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke detector structures, and particularly relates to a maze structure of a smoke detector. Background Art

[0002] Photoelectric smoke detectors are vulnerable to external light sources. To ensure their normal operation, the photoelectric sensor needs to be installed inside the optical maze housing to provide a stable optical environment. This maze housing not only needs to effectively shield the interference of external light sources, but also must minimize the resistance of smoke entering the maze. For a reflective integrated transmitter-receiver photoelectric sensor, a relatively large reflection space is required to compensate for the influence of the direct reflection of its own emitted light source on the photoelectric receiving tube.

[0003] In the prior art, as shown in the technical solution 202090000789.X, a single plate is arranged to surround the periphery, and one end of the plate directly faces the center direction inside the housing. To ensure the light-shielding ability, the length of the plate is often large, resulting in a large space occupied by the plate and a large size of the overall smoke detector housing. Summary of the Utility Model

[0004] Therefore, it is necessary to provide a maze structure of a smoke detector to solve the problem in the prior art that in the setting method of a single plate surrounding the periphery, one end of the plate directly faces the center direction inside the housing. To ensure the light-shielding ability, the length of the plate is often large, resulting in a large space occupied by the plate and a large size of the overall smoke detector housing.

[0005] To achieve the above object, the inventor provides a maze structure of a smoke detector, including a base, a top cover and side baffles;

[0006] The base is of an annular structure;

[0007] The side baffles are arranged at intervals around a through hole, and include a first baffle and a second baffle. One side of the first baffle is connected to the base, and the other side of the first baffle faces the inner direction of the base. The second baffle is connected to the other side of the first baffle, and the second baffle forms an included angle with the first baffle. The length of the second baffle is greater than that of the first baffle, and a protrusion area and a concave area are formed at the side where the first baffle and the second baffle are connected. The protrusion area faces the adjacent concave area;

[0008] The top cover is connected to the tops of the first baffle and the second baffle, and an air cavity is formed in the inner area of the annular structure of the top cover, the side baffles and the base.

[0009] Different from the prior art, the above technical solution has the following advantages: By separating the side baffle into a first baffle and a second baffle, a protrusion area and a concave area are formed on the side where the first baffle and the second baffle are connected. The protrusion area is arranged towards the adjacent concave area, which is convenient for arranging the baffle by using the bent part structure. Both the protrusion area and the concave area can block light. And when the length of the second baffle is greater than that of the first baffle, the length of the first baffle is less than that of the second baffle. By relying on the longer second baffle to form an angle, the side baffle occupies space in the circumferential direction around the base instead of occupying space towards the center direction, reducing the space occupied by extending towards the center of the ventilation cavity and facilitating the miniaturization of the size of the smoke detector housing.

[0010] As a preferred embodiment of the present application, the distance between adjacent side baffles gradually increases from the top cover to the base direction. By setting the distance between adjacent side baffles to gradually increase from the top cover to the base direction, it is convenient to increase the area of air flow conduction.

[0011] As a preferred embodiment of the present application, the thickness of the end of the second baffle connected to the first baffle is greater than the thickness of the other end of the second baffle. By making the thickness of the end of the second baffle connected to the first baffle greater than the thickness of the other end of the second baffle, it is convenient to increase the distance between the second baffle and the adjacent first baffle and increase the air flow into the ventilation cavity.

[0012] As a preferred embodiment of the present application, the top cover is provided with an inner groove, and the bottom of the inner groove faces the base direction. By setting the groove of the top cover and making the bottom of the inner groove face the base direction, it is convenient to increase the structural strength of the top cover.

[0013] As a preferred embodiment of the present application, the base is provided with assembly holes. By setting assembly holes on the base, it is convenient for the overall assembly of the smoke detector housing.

[0014] As a preferred embodiment of the present application, the assembly holes are arranged around the base. By arranging the assembly holes around the base, it is convenient to improve the overall assembly stability of the smoke detector housing and facilitate the operator to select the assembly holes for adaptive assembly.

[0015] As a preferred embodiment of the present application, one side of the second baffle faces the center direction of the ventilation cavity. By making one side of the second baffle face the center direction of the ventilation cavity, it is convenient to reduce the space occupied by the second baffle in the length direction towards the center of the ventilation cavity.

[0016] As a preferred embodiment of the present application, the surfaces of the first baffle and the second baffle of the side baffle are polished surfaces. By setting the surfaces of the first baffle and the second baffle as polished surfaces, it is convenient to reduce the resistance of air flow in and out and improve the efficiency of air flow.

[0017] As a preferred embodiment of the present application, the number of the side baffles is 12.

[0018] As a preferred embodiment of the present application, the thickness of the first baffle is greater than that of the second baffle. By making the thickness of the first baffle greater than that of the second baffle, it is convenient to rely on the first baffle for stress bearing and reduce the space occupied by the thickness of the second baffle between adjacent first baffles, ensuring the efficiency of air flow. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the maze structure of the smoke detector in the embodiment of the present utility model;

[0020] Figure 2 It is a sectional structural schematic diagram of the maze structure of the smoke detector in the embodiment of the present utility model;

[0021] Figure 3 It is a top view structural schematic diagram of the maze structure of the smoke detector in the embodiment of the present utility model;

[0022] Figure 4 It is a bottom view structural schematic diagram of the maze structure of the smoke detector in the embodiment of the present utility model;

[0023] Figure 5 It is a detailed structural schematic diagram of the side baffle in the embodiment of the present utility model.

[0024] Description of the Reference Numerals:

[0025] 10. Base;

[0026] 11. Assembly Hole;

[0027] 20. Top Cover;

[0028] 21. Inner Groove;

[0029] 30. Side Baffle;

[0030] 31. First Baffle; 32. Second Baffle; 33. Protrusion Area; 34. Concave Area;

[0031] 40. Ventilation Chamber. Detailed Embodiments

[0032] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects, etc. of the present application, the following is detailed in conjunction with the listed specific embodiments and with reference to the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.

[0033] References to "embodiments" in this application mean that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0034] Unless otherwise defined, the meanings of the technical terms used in this application are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of the relevant terms in this application is only for describing specific embodiments and is not intended to limit this application.

[0035] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: the existence of A, the existence of B, and the simultaneous existence of A and B. In addition, the character " / " in this application generally represents an "or" logical relationship between the associated objects before and after.

[0036] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary, or sequential relationships between these entities or operations.

[0037] Without further limitation, in this application, the expressions such as "include", "comprise", "have", or other similar expressions used in a statement are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method, or product including the said elements, so that a process, method, or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to this process, method, or product.

[0038] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the number itself; expressions such as "above", "below", "within", etc. are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "multiple" is two or more (including two), and similar expressions related to "many", such as "multiple groups", "multiple times", etc., are also understood in this way, unless otherwise specifically defined.

[0039] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or the drawings. It is only for the convenience of describing the specific embodiments of the present application or facilitating the understanding of the readers, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0040] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, the terms such as "installed", "connected", "connected to", "fixed", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] Please refer to Figures 1 to 5 , a maze structure of a smoke detector, including a base 10, a top cover 20, and a side baffle 30;

[0042] The base 10 is an annular structure;

[0043] The side baffle 30 is arranged around the through hole at intervals, including a first baffle 31 and a second baffle 32. One side of the first baffle 31 is connected to the base 10, and the other side of the first baffle 31 is arranged towards the inner side of the base 10. The second baffle 32 is connected to the other side of the first baffle 31. The second baffle 32 and the first baffle 31 are arranged at an angle. The length of the second baffle 32 is greater than the length of the first baffle 31, and a protrusion area and a concave area 34 are formed at the side where the first baffle 31 and the second baffle 32 are connected. The protrusion area is arranged towards the adjacent concave area 34;

[0044] The top cover 20 is connected to the tops of the first baffle 31 and the second baffle 32, and an air cavity 40 is formed in the inner area of the annular structure of the top cover 20, the side baffle 30, and the base 10.

[0045] According to the above structure, during the use of the maze structure of the smoke detector, the maze structure of the smoke detector is assembled at a predetermined assembly position through the base 10, and the detection end of the detector faces the direction of the ventilation cavity 40. External light is blocked by the outer sides of the first baffle 31 and the second baffle 32 of the side baffle 30, preventing the light from entering. During the inflow of the air current, it flows in or out through the gap between the side baffles 30. During the inflow or outflow process, it flows between the protruding area 33 and the concave area 34 formed by the included angle between the first baffle 31 and the second baffle 32 of the side baffle 30, so as to achieve the effect that the air reaches the area where the ventilation cavity 40 is located and is detected by the detection end of the detector. By separating the side baffle 30 into the first baffle 31 and the second baffle 32, a protruding area and a concave area 34 are formed on the side where the first baffle 31 and the second baffle 32 are connected. The protruding area is arranged towards the adjacent concave area 34, which is convenient for arranging the baffle by using the bent part structure. Both the protruding area 33 and the concave area 34 can block light. And when the length of the second baffle 32 is greater than the length of the first baffle 31, the length of the first baffle 31 is less than that of the second baffle 32. Relying on the longer second baffle 32 to form an included angle, the side baffle 30 occupies space in the circumferential direction around the base 10 instead of occupying space towards the center direction, reducing the space occupied by extending towards the center direction of the ventilation cavity 40 and facilitating the miniaturization of the size of the smoke detector housing.

[0046] Please refer to Figures 1 to 5 simultaneously. As a preferred embodiment of the present application, the distance between adjacent side baffles 30 gradually increases from the top cover 20 to the base 10. By setting the distance between adjacent side baffles 30 to gradually increase from the top cover 20 to the base 10, it is convenient to increase the area of air current conduction. During the actual working process, the air current can flow into the ventilation cavity 40 more through the gradually increasing distance between the side baffles 30.

[0047] Please refer to Figures 1 to 5 simultaneously. As a preferred embodiment of the present application, the thickness of one end of the second baffle 32 connected to the first baffle 31 is greater than the thickness of the other end of the second baffle 32. By making the thickness of one end of the second baffle 32 connected to the first baffle 31 greater than the thickness of the other end of the second baffle 32, it is convenient to increase the distance between the second baffle 32 and the adjacent first baffle 31 and increase the flow rate of the air current flowing into the ventilation cavity 40. During the actual working process, the gradually decreasing thickness of the other end of the second baffle 32 enables more air to be less blocked by the second baffle 32 when reaching the side area of the first baffle 31 facing the ventilation cavity 40.

[0048] Please refer to Figures 1 to 5, as a preferred embodiment of the present application, the top cover 20 is provided with an inner groove 21, and the bottom of the inner groove 21 faces the base 10. By providing the groove of the top cover 20 with the bottom of the inner groove 21 facing the base 10, it is convenient to increase the structural strength of the top cover 20.

[0049] Please refer to Figures 1 to 5 , as a preferred embodiment of the present application, the base 10 is provided with an assembly hole 11. By providing the assembly hole 11 on the base 10, it is convenient for the overall assembly of the smoke detector housing.

[0050] Please refer to Figures 1 to 5 , as a preferred embodiment of the present application, the assembly hole 11 is arranged around the base 10. By arranging the assembly hole 11 around the base 10, it is convenient to improve the overall assembly stability of the smoke detector housing and facilitate the operator to select the assembly hole 11 for adaptive assembly. During the actual assembly process, the operator can fix all the circumferentially arranged assembly holes to ensure the structural strength and tightness of the connection structure, or select any assembly hole for fixing when the assembly position is limited.

[0051] Please refer to Figures 1 to 5 , as a preferred embodiment of the present application, one side of the second baffle 32 faces the center direction of the ventilation cavity 40. By making one side of the second baffle 32 face the center direction of the ventilation cavity 40, it is convenient to reduce the space occupied by the second baffle 32 in the length direction in the center direction of the ventilation cavity 40.

[0052] Please refer to Figures 1 to 5 , as a preferred embodiment of the present application, the surfaces of the first baffle 31 and the second baffle 32 of the side baffle 30 are polished surfaces. By setting the surfaces of the first baffle 31 and the second baffle 32 as polished surfaces, it is convenient to reduce the resistance of air flow in and out and improve the efficiency of air flow.

[0053] Please refer to Figures 1 to 5 , as a preferred embodiment of the present application, the number of the side baffles 30 is 12.

[0054] Please refer to Figures 1 to 5 , as a preferred embodiment of the present application, the thickness of the first baffle 31 is greater than the thickness of the second baffle 32. By making the thickness of the first baffle 31 greater than the thickness of the second baffle 32, it is convenient to rely on the first baffle 31 for stress bearing and reduce the space occupied by the thickness of the second baffle 32 between the adjacent first baffles 31 to ensure the efficiency of air flow.

[0055] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of this application, the patent protection scope of this application cannot be limited thereby. Any technical solutions obtained by equivalent structure or equivalent process substitution or modification based on the essential concept of this application and using the content recorded in the text and drawings of the specification of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of this application.

Claims

1. A smoke detector maze structure, characterized in that: Including base, top cover and side guard; The base is an annular structure; The side baffle is arranged around the through hole, including a first baffle and a second baffle, one side of the first baffle is connected to the base, the other side of the first baffle is arranged toward the inner side of the base, the second baffle is connected to the other side of the first baffle, the second baffle and the first baffle are arranged at an angle, the length of the second baffle is greater than the length of the first baffle, and a protruding area and a concave area are formed on the side where the first baffle and the second baffle are connected, and the protruding area is arranged toward the adjacent concave area; The top cover is connected to the tops of the first baffle and the second baffle, and a ventilation cavity is formed in the inner area of ​​the annular structure of the top cover, the side baffle and the base.

2. The smoke detector maze structure according to claim 1, characterized in that: The distance between adjacent side guards gradually increases from the top cover to the base.

3. The smoke detector maze structure according to claim 1, characterized in that: The thickness of one end of the second baffle connected to the first baffle is greater than the thickness of the other end of the second baffle.

4. The smoke detector maze structure according to claim 1, characterized in that: The top cover is provided with an inner groove, and the bottom of the inner groove faces the base.

5. The smoke detector maze structure according to claim 1, characterized in that: The base is provided with an assembly hole.

6. The smoke detector maze structure according to claim 5, characterized in that: The assembly hole is arranged around the base.

7. The smoke detector maze structure according to claim 1, characterized in that: One side of the second baffle faces the center direction of the ventilation cavity.

8. The smoke detector maze structure according to claim 1, characterized in that: The surfaces of the first baffle and the second baffle of the side baffle are polished surfaces.

9. The smoke detector maze structure according to claim 1, characterized in that: The number of the side guards is 12.

10. The smoke detector maze structure according to claim 1, characterized in that: The thickness of the first baffle is greater than the thickness of the second baffle.

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