Dust-interference-resistant smoke detector vertical labyrinth cover

Abstract

The invention discloses a dust interference resistant smoke detector vertical labyrinth cover, which comprises a top cover, the bottom end of the top cover extends downwards to form an inner ring, rack-shaped inner ring retaining walls are arranged on the outer wall of the inner ring in a surrounding manner, and the rack-shaped inner ring retaining walls are vertically arranged at equal intervals. After the dust filtered by the outer ring of the labyrinth top cover encounters the retaining wall of the inner ring, a part of the dust falls to the bottom of the labyrinth top cover and a part of the dust is adsorbed on the outer surface of the retaining wall of the inner ring under the action of gravity, and the outer surface of the inner ring is shaped, so that the dust adsorption area can be increased, and the quantity of the dust entering the inner ring is reduced. According to the scheme, the quantity of dust directly entering the labyrinth detection area can be effectively reduced, so that the dust interference resistance is realized. The top cover of the maze and the base of the maze are matched without buckles and directions, and can be installed at all degrees, so that the assembly efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of smoke detectors, and in particular to a vertical maze cover for a smoke detector that resists dust interference. Background Art

[0002] The mainstream smoke detectors on the market currently have weak dust resistance and often give false alarms due to dust contamination. Once a false alarm occurs, the maze needs to be cleaned or the smoke detector replaced, which brings a certain degree of inconvenience to the user. At the same time, the main maze structures of smoke detectors on the market are fixed by buckles, which increases production costs. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems of the background technology and to provide a vertical labyrinth cover for smoke detectors that is resistant to dust interference.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A dust-interference-resistant vertical labyrinth cover for a smoke detector comprises a top cover, the bottom end of which extends downward to form an inner ring, the outer wall of which is surrounded by a rack-shaped inner ring retaining wall, and the rack-shaped inner ring retaining walls are arranged vertically and equidistantly.

[0006] As a further solution of the present invention: an outer ring is formed around the inner ring at the bottom end of the top cover, a gap is formed between the outer ring and the inner ring, and the outer ring is a ventilation grille formed by a staggered arrangement in horizontal and vertical directions.

[0007] As a further solution of the present invention: the labyrinth cover also includes a base, and the top of the base and the bottom of the top cover are assembled with each other.

[0008] As a further solution of the present invention: a first docking portion is fixed to the bottom of the ventilation grille, and a second docking portion that cooperates and engages with the first docking portion is formed on the top of the base.

[0009] As a further solution of the present invention: a groove is formed on the top of the base, and a plurality of first limiting columns and a plurality of second limiting columns are fixed on the top of the base around and attached to the inner wall of the groove, and the second limiting columns are located between the two first limiting columns.

[0010] As a further solution of the present invention: a hole is formed through the top of the top cover, and the top of the second limiting column protrudes upward to form a protrusion matching the hole, and the protrusion can be stuck in the hole.

[0011] As a further solution of the present invention: a third limiting column is fixed to the bottom of the base, and the end of the third limiting column protrudes outward to form a buckle.

[0012] The beneficial effects of the present invention are as follows: after the dust is filtered through the outer ring of the labyrinth top cover, upon encountering the inner ring retaining wall, part of it falls to the bottom of the labyrinth top cover due to gravity, and part of it is adsorbed on the outer surface of the inner ring retaining wall. The outer surface of the inner ring is shaped to increase the dust adsorption area and reduce the amount of dust entering the inner ring.

[0013] This solution can effectively reduce the amount of dust that directly enters the maze detection area, thereby achieving anti-dust interference capabilities. The top cover of the maze and the base of the maze are compatible without buckles and directions, and can be installed at any angle, greatly improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 , 2 It is a schematic diagram of the structure of the top cover of the present invention;

[0016] Figure 3 , 4 It is a structural schematic diagram of the base of the present invention;

[0017] Figure 5 , 6 It is a cross-sectional view of the top cover and the base after being assembled.

[0018] In the figure: 1. top cover; 101. inner ring; 102. outer ring; 103. interval gap; 104. hole; 105. inner ring retaining wall; 106. first docking part; 107. grille; 2. base; 201. first limiting column; 202. second limiting column; 203. protrusion; 204. second docking part; 205. third limiting column; 206. buckle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] For example, see Figure 1-2 As shown, the present invention is a vertical labyrinth cover for a dust-interference-resistant smoke detector, comprising a top cover 1, wherein the bottom end of the top cover 1 extends downward to form an inner ring 101, and a rack-shaped inner ring retaining wall 105 is arranged around the outer wall of the inner ring 101, and the rack-shaped inner ring retaining walls 105 are arranged vertically equidistantly.

[0021] For example 2, please refer to Figure 1-2As shown, the present invention is a vertical labyrinth cover for a dust-interference-resistant smoke detector, comprising a top cover 1, wherein the bottom end of the top cover 1 extends downward to form an inner ring 101, and a rack-shaped inner ring retaining wall 105 is arranged around the outer wall of the inner ring 101, and the rack-shaped inner ring retaining walls 105 are arranged vertically equidistantly.

[0022] An outer ring 102 is formed at the bottom end of the top cover 1 around the inner ring 101 , a gap 103 is formed between the outer ring 102 and the inner ring 101 , and the outer ring 102 is a ventilation grille 107 formed by staggered arrangement in horizontal and vertical directions.

[0023] For example 3, please refer to Figure 1-6 As shown, the present invention is a vertical labyrinth cover for a dust-interference-resistant smoke detector, comprising a top cover 1, wherein the bottom end of the top cover 1 extends downward to form an inner ring 101, and a rack-shaped inner ring retaining wall 105 is arranged around the outer wall of the inner ring 101, and the rack-shaped inner ring retaining walls 105 are arranged vertically equidistantly.

[0024] An outer ring 102 is formed at the bottom end of the top cover 1 around the inner ring 101 , a gap 103 is formed between the outer ring 102 and the inner ring 101 , and the outer ring 102 is a ventilation grille 107 formed by staggered arrangement in horizontal and vertical directions.

[0025] The labyrinth cover further comprises a base 2 , the top of the base 2 and the bottom of the top cover 1 are assembled with each other.

[0026] A first docking portion 106 is fixed to the bottom of the ventilation grille 107 , and a second docking portion 204 that cooperates and engages with the first docking portion 106 is formed on the top of the base 2 .

[0027] Example 4, please refer to Figure 1-6 As shown, the present invention is a vertical labyrinth cover for a dust-interference-resistant smoke detector, comprising a top cover 1, wherein the bottom end of the top cover 1 extends downward to form an inner ring 101, and a rack-shaped inner ring retaining wall 105 is arranged around the outer wall of the inner ring 101, and the rack-shaped inner ring retaining walls 105 are arranged vertically equidistantly.

[0028] An outer ring 102 is formed at the bottom end of the top cover 1 around the inner ring 101 , a gap 103 is formed between the outer ring 102 and the inner ring 101 , and the outer ring 102 is a ventilation grille 107 formed by staggered arrangement in horizontal and vertical directions.

[0029] The labyrinth cover further comprises a base 2 , the top of the base 2 and the bottom of the top cover 1 are assembled with each other.

[0030] A first docking portion 106 is fixed to the bottom of the ventilation grille 107 , and a second docking portion 204 that cooperates and engages with the first docking portion 106 is formed on the top of the base 2 .

[0031] A groove is formed on the top of the base 2, and a plurality of first limiting columns 201 and a plurality of second limiting columns 202 are fixed around the inner wall of the groove on the top of the base 2, and the second limiting columns 202 are located between the two first limiting columns 201. A hole 104 is formed through the top of the top cover 1, and a protrusion 203 matching the hole 104 is formed on the top of the second limiting column 202, and the protrusion 203 can be stuck in the hole 104.

[0032] In another embodiment, a third limiting column 205 is fixed to the bottom of the base 2 , and an end of the third limiting column 205 protrudes outward to form a buckle 206 .

[0033] After the dust is filtered by the outer ring 102 of the labyrinth top cover, it encounters the inner ring retaining wall 105. Due to the effect of gravity, part of it falls to the bottom of the labyrinth top cover, and part of it is adsorbed on the outer surface of the inner ring retaining wall 105. The outer surface of the inner ring 101 is shaped to increase the dust adsorption area and reduce the amount of dust entering the inner ring 101.

[0034] This solution can effectively reduce the amount of dust that directly enters the maze detection area, thereby achieving dust resistance. The top cover 1 of the maze and the base 2 of the maze are compatible without buckles or directions, and can be installed at 360 degrees, greatly improving assembly efficiency.

[0035] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A dust-resistant smoke detector vertical labyrinth cover, comprising a top cover (1), characterized in that: The bottom end of the top cover (1) extends downward to form an inner ring (101), and a rack-shaped inner ring retaining wall (105) is arranged around the outer wall of the inner ring (101), and the rack-shaped inner ring retaining walls (105) are arranged vertically and equidistantly.

2. The dust-interference-resistant smoke detector vertical labyrinth cover according to claim 1 is characterized in that: An outer ring (102) is formed at the bottom end of the top cover (1) around the inner ring (101), a gap (103) is formed between the outer ring (102) and the inner ring (101), and the outer ring (102) is a ventilation grille (107) formed by staggered arrangement in horizontal and vertical directions.

3. The dust-interference-resistant smoke detector vertical labyrinth cover according to claim 1 is characterized in that: The labyrinth cover also includes a base (2), and the top of the base (2) and the bottom of the top cover (1) are assembled with each other.

4. The dust-interference-resistant smoke detector vertical labyrinth cover according to claim 3 is characterized in that: A first docking portion (106) is fixed to the bottom of the ventilation grille (107), and a second docking portion (204) is formed on the top of the base (2) and is engaged with the first docking portion (106).

5. A dust-interference-resistant smoke detector vertical labyrinth cover according to claim 3 or 4, characterized in that: A groove is formed on the top of the base (2), and a plurality of first limiting columns (201) and a plurality of second limiting columns (202) are fixed around the top of the base (2) and attached to the inner wall of the groove, wherein the second limiting columns (202) are located between the two first limiting columns (201).

6. The dust-interference-resistant smoke detector vertical labyrinth cover according to claim 5 is characterized in that: The top of the top cover (1) is provided with a hole (104) extending therethrough, and the top of the second limiting column (202) protrudes upward to form a protrusion (203) matching the hole (104), and the protrusion (203) can be stuck in the hole (104).

7. The vertical labyrinth cover for smoke detectors resistant to dust interference according to claim 3 is characterized in that: A third limiting column (205) is fixed to the bottom of the base (2), and an end of the third limiting column (205) protrudes outwards to form a buckle (206).

Images