Smoke temperature and carbon monoxide composite alarm device

Abstract

The utility model relates to the technical field of detection alarm devices, in particular to a smoke temperature and carbon monoxide composite alarm device which comprises a lower shell, a connecting shell and an upper shell which are arranged in a matched mode, the surface of the lower shell is fixedly connected with a smoke inlet cage and a protection cage, and the interior of the connecting shell is fixedly connected with a battery panel arranged in a matched mode. A battery cavity is formed in the surface of the battery panel, a support is fixedly arranged at the bottom end of the connecting shell, a circuit board is fixedly connected to the interior of the upper shell, and a carbon monoxide detection air chamber, a smoke sensing detection labyrinth and a temperature sensor are fixedly connected to the surface of the circuit board. The effect of conveniently limiting and fixing the circuit board is achieved through the connecting shell, the annular positioning groove in the surface of the circuit board can be embedded with the support so that the fixing and supporting effects can be well achieved, and the effect of protecting the temperature sensor is achieved through the protection cage. And the effect of limiting and fixing the smoke sensing detection labyrinth and the carbon monoxide detection air chamber in the upper shell is achieved through the mounting opening and the outer protection ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of detection alarm device, concretely relates to a smoke temperature carbon monoxide composite alarm device. BACKGROUND

[0002] The technical principle of the smoke sensing fire alarm is generally photoelectric induction type, that is, in a clean air environment, the photosensitive receiver in the smoke sensing groove cannot receive the signal of the emitter; when smoke particles enter the smoke sensing groove, the light signal of the emitter can reach the photosensitive receiver through the refraction or reflection effect of the smoke particles, thereby generating a voltage signal. Since photoelectric induction type only has effect on light signals, the alarm of this type has good anti-interference performance and low false alarm rate. However, the actual fire scene is very complex, and in places where coal, carbon and other materials are used, carbon monoxide poisoning often occurs first, followed by a fire.

[0003] In order to solve the problem that the ordinary smoke detector cannot effectively detect CO in the early stage of fire, a composite fire alarm containing smoke sensing and CO detection functions is used, which detects indoor temperature, CO gas and smoke, etc. When the preset indicators in the environment reach the alarm limit, the buzzer alarm and indicator light are turned on, thereby improving the response performance of the smoke detector and reducing the false alarm rate. Some composite fire alarms directly set the smoke sensing labyrinth and temperature sensor in the smoke inlet cavity position of the upper shell, so that smoke particles, carbon monoxide gas and temperature in the detected environment can more easily enter the smoke sensing labyrinth and carbon monoxide detection chamber. However, it has the following problems:

[0004] When the smoke sensing labyrinth and temperature sensor are integrally arranged in the smoke inlet cavity position of the upper shell, there is no any limiting and fixing structure, and the installation stability of the smoke sensing labyrinth and temperature sensor needs to be improved. In addition, the conventional alarm device is directly installed on the ceiling position, and the upper shell is inverted and located at the bottom position. When it is intentionally damaged by human (such as water damage to the internal detection structure), the installation structure is easy to cause water to enter the interior and be damaged. Moreover, when the temperature sensor is arranged in the upper shell, it cannot detect the indoor temperature in the first time due to the obstruction of the shell.

[0005] Therefore, the utility model provides a smoke temperature carbon monoxide composite alarm device. UTILITY MODEL CONTENTS

[0006] In view of the defects in the prior art, the smoke temperature carbon monoxide composite alarm device provided by the utility model can solve the following problems:

[0007] When the smoke sensing labyrinth and temperature sensor are integrally arranged in the smoke inlet cavity position of the upper shell, the problem that there is no any limiting and fixing structure and the installation stability of the smoke sensing labyrinth and temperature sensor needs to be improved is solved;

[0008] When encountering human intentional damage (such as water damage to the internal detection structure), the installation structure is easy to cause water to enter the inside and then be damaged, and when the temperature sensor is arranged in the upper shell, the temperature sensor cannot detect the indoor temperature in the first time due to the obstruction of the shell.

[0009] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0010] A smoke temperature and carbon monoxide composite alarm device, including the lower shell, the connecting shell and the upper shell which are matched, the surface of the lower shell is fixedly connected with the smoke inlet cage and the protective cage, the inside of the connecting shell is fixedly connected with the matched battery plate, the surface of the battery plate is provided with the battery cavity, the bottom of the connecting shell is fixedly provided with the support, the inside of the upper shell is fixedly connected with the circuit board, the surface of the circuit board is fixedly connected with the carbon monoxide detection gas chamber, the smoke detection labyrinth and the temperature sensor, the inside of the upper shell is provided with the installation port, and the outside of the installation port is fixedly connected with the outer protective ring.

[0011] Further, the connecting shell is provided in a cylindrical shape, the support is provided in an annular shape, and the bottom of the connecting shell is provided in an inward inclination.

[0012] Further, the connecting shell is provided in a cylindrical shape, the support is provided in an annular shape, and the bottom of the connecting shell is provided in an inward inclination.

[0013] Further, the top of the circuit board is provided with an annular positioning groove on both sides corresponding to the support.

[0014] Further, the protective cage is vertically arranged on both sides of the smoke inlet cage, the surface of the upper shell is provided with a through hole corresponding to the position of the protective cage, and a rubber sealing sleeve is arranged in the through hole.

[0015] Further, the installation port is arranged at the central position of the surface of the upper shell and above the smoke inlet cage, the outer protective ring is fixedly connected to the inner surface of the upper shell and is located outside the smoke detection labyrinth and the carbon monoxide detection gas chamber, and the inner wall of the outer protective ring is provided with two sealing washers.

[0016] Further, the carbon monoxide detection gas chamber is arranged in an L shape outside the smoke detection labyrinth, the vertical section is provided as an air inlet end, and the vertical section of the carbon monoxide detection gas chamber is located inside the installation port and the outer protective ring.

[0017] Further, the temperature sensor is vertically embedded in the protective cage through the through hole on the surface of the upper shell.

[0018] From the above technical scheme, the utility model has the beneficial effects:

[0019] 1. The utility model discloses a connecting shell reaches the effect that it is convenient to limit and fix circuit board, and the annular positioning groove on the surface of circuit board can form the inlay with the support, so that the fixed and support effect is realized well.

[0020] 2. The utility model discloses a protective cage reaches the effect that it is protected to temperature sensor, through the installation mouth and the outer protective ring reach the effect that it is limited and fixed to the smoke detection labyrinth and carbon monoxide detection gas chamber in the upper casing, can also avoid the external water source into the upper casing.

[0021] 3. The utility model discloses a temperature sensor passes through the through -hole on the surface of upper casing and vertically inserts the protective cage,

[0022] 4. The utility model discloses a protruding temperature sensor and an extended carbon monoxide detection gas chamber reach the effect that the detection sensitivity is improved. DRAWINGS

[0023] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will be briefly introduced the drawings needed to be used in the specific embodiment or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0024] Figure 1 It is the overall structure front view of the utility model,

[0025] Figure 2 It is the structure enlarged view of the utility model in Figure 1 A place in the middle,

[0026] Figure 3 It is the structure connection front view of the utility model lower casing.

[0027] Reference signs:

[0028] 1, lower casing, 2, connecting shell, 3, upper casing, 4, smoke cage, 5, battery plate, 6, circuit board, 7, carbon monoxide detection gas chamber, 8, smoke detection labyrinth, 9, battery cavity, 10, temperature sensor, 11, support, 12, protective cage, 13, installation mouth, 14, outer protective ring. Specific embodiments

[0029] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, therefore only as an example, and cannot limit the protection scope of the utility model.

[0030] Reference Figures 1-3As shown, a smoke temperature carbon monoxide composite alarm device, including a matching set of lower shell 1, connecting shell 2 and upper shell 3, the surface of the lower shell 1 is fixedly connected with the smoke cage 4 and the protective cage 12, the inside of the connecting shell 2 is fixedly connected with the battery plate 5, the surface of the battery plate 5 is provided with the battery cavity 9, the bottom end of the connecting shell 2 is fixedly provided with the support 11, the inside of the upper shell 3 is fixedly connected with the circuit board 6, the surface of the circuit board 6 is fixedly connected with the carbon monoxide detection gas chamber 7, the smoke detection labyrinth 8 and the temperature sensor 10, the inside of the upper shell 3 is provided with the mounting port 13, and the outside of the mounting port 13 is fixedly connected with the outer protective ring 14.

[0031] In the embodiment of the utility model, the connecting shell 2 is integrally provided in a cylindrical shape, the support 11 is provided in an annular shape, and the bottom of the connecting shell 2 is provided inwardly inclined, the top of the connecting shell 2 and the lower shell 1 are provided in a threaded connection, the bottom and the upper shell 3 are provided in a clamping connection, the top of the circuit board 6 is provided with an annular positioning groove corresponding to the support 11, the connecting shell 2 can conveniently limit and fix the circuit board 6, and the annular positioning groove on the surface of the circuit board 6 can be embedded with the support 11, so that the fixing and supporting effects are achieved.

[0032] The protective cage 12 is vertically arranged at both sides of the smoke cage 4, the surface of the upper shell 3 is provided with a through hole corresponding to the position of the protective cage 12, a rubber sealing sleeve is arranged in the through hole, the mounting port 13 is arranged at the central position of the surface of the upper shell 3 and is located above the smoke cage 4, the outer protective ring 14 is fixedly connected to the inner surface of the upper shell 3 and is located outside the smoke detection labyrinth 8 and the carbon monoxide detection gas chamber 7, and the inner wall of the outer protective ring 14 is provided with two sealing washers, the protective cage 12 can protect the temperature sensor 10, the mounting port 13 and the outer protective ring 14 can limit and fix the smoke detection labyrinth 8 and the carbon monoxide detection gas chamber 7 in the upper shell 3, and external water can be prevented from entering the upper shell 3.

[0033] The carbon monoxide detection gas chamber 7 is arranged outside the smoke detection labyrinth 8 in an "L" shape, the vertical section is arranged as an air inlet end, the vertical section of the carbon monoxide detection gas chamber 7 is located inside the mounting port 13 and the outer protective ring 14, the temperature sensor 10 is vertically embedded in the protective cage 12 through the through hole in the surface of the upper shell 3, and the protruding temperature sensor 10 and the extended carbon monoxide detection gas chamber 7 can improve the detection sensitivity.

[0034] When the device is in use, the outer protective ring 14 installs and limits the carbon monoxide detection gas chamber 7 and the smoke detection labyrinth 8, can effectively form waterproof seal from the position of the smoke cage 4, avoid artificial damage by pouring water, and the temperature sensor 10 is set outside the upper shell 3, cooperates with the protective cage 12 to improve the detection sensitivity and has good protection, and the air inlet end of the vertical section of the carbon monoxide detection gas chamber 7 is arranged in the upper shell 3, and has good detection sensitivity.

[0035] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A combined alarm device for smoke temperature and carbon monoxide, characterized in that: The device includes a lower housing (1), a connecting housing (2), and an upper housing (3). The surface of the lower housing (1) is fixedly connected to a smoke inlet cage (4) and a protective cage (12). The interior of the connecting housing (2) is fixedly connected to a battery panel (5). The surface of the battery panel (5) is provided with a battery cavity (9). The bottom end of the connecting housing (2) is fixedly provided with a support (11). The interior of the upper housing (3) is fixedly connected to a circuit board (6). The surface of the circuit board (6) is fixedly connected to a carbon monoxide detection chamber (7), a smoke detection labyrinth (8), and a temperature sensor (10). The interior of the upper housing (3) is provided with an installation port (13). An outer protective ring (14) is fixedly connected to the outside of the installation port (13).

2. The combined alarm device for smoke temperature and carbon monoxide according to claim 1, characterized in that: The connecting shell (2) is cylindrical in shape, the support (11) is an annular support, and the bottom of the connecting shell (2) is inclined inward.

3. The combined alarm device for smoke temperature and carbon monoxide according to claim 2, characterized in that: The top of the connecting shell (2) and the lower shell (1) are connected by a thread, and the bottom of the connecting shell (2) and the upper shell (3) are connected by a snap-fit.

4. The combined alarm device for smoke temperature and carbon monoxide according to claim 1, characterized in that: The top two sides of the circuit board (6) are provided with annular positioning grooves corresponding to the supports (11).

5. The combined alarm device for smoke temperature and carbon monoxide according to claim 1, characterized in that: The protective cage (12) is vertically positioned on both sides of the smoke inlet cage (4). A through hole is provided on the surface of the upper shell (3) corresponding to the position of the protective cage (12), and a rubber sealing sleeve is provided in the through hole.

6. The combined alarm device for smoke temperature and carbon monoxide according to claim 1, characterized in that: The mounting port (13) is located in the center of the surface of the upper housing (3) and above the smoke inlet cage (4). The outer protective ring (14) is fixedly connected to the inner surface of the upper housing (3) and is located outside the smoke detection labyrinth (8) and the carbon monoxide detection chamber (7). The inner wall of the outer protective ring (14) is provided with two sets of sealing gaskets.

7. The combined alarm device for smoke temperature and carbon monoxide according to claim 1, characterized in that: The carbon monoxide detection chamber (7) is L-shaped and located outside the smoke detection maze (8). Its vertical section is set as the air inlet, and the vertical section of the carbon monoxide detection chamber (7) is located inside the mounting port (13) and the outer protective ring (14).

8. The combined alarm device for smoke temperature and carbon monoxide according to claim 1, characterized in that: The temperature sensor (10) is vertically embedded in the protective cage (12) through a through hole on the surface of the upper housing (3).

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