Gas concentration detection device of combustible gas alarm

Abstract

The utility model relates to the technical field of combustible gas detection, and provides a combustible gas alarm gas concentration detection device which comprises a combustible gas detector, an inner cavity is arranged in a protective shell, and a window is arranged at the upper end of the protective shell; one end of the first protection plate is hinged to one side of the window; one end of the second protection plate is hinged to the other end of the first protection plate, and the first protection plate and the second protection plate are used for covering the window; a clamping groove is formed in the upper end of the side wall of the protection shell, after the first protection plate rotates, the first protection plate and the second protection plate are in an inclined state, the end of the second protection plate is used for abutting against the interior of the clamping groove, and after the end of the second protection plate abuts against the clamping groove, the combustible gas detector is obliquely arranged beside the second protection plate. According to the technical scheme, the problems that an existing handheld combustible gas detector cannot be obliquely placed, and data display on a screen is inconvenient to observe when the handheld combustible gas detector is horizontally placed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of combustible gas detection, in particular to a gas concentration detection device for a combustible gas alarm. Background Art

[0002] In gas environment monitoring, in order to detect and judge gas leakage and reduce the explosion risk, it is necessary to detect the concentration of combustible gas. Generally, a combustible gas detector is used to detect combustible gas.

[0003] Existing combustible gas detectors have various styles. Among them, portable detectors are more convenient to use and can detect the concentration of various combustible gases in the environment to be detected. Generally, hold the combustible gas detector by hand and extend or approach the detection head to the area to be detected. The gas concentration can be displayed on the detector. Although the handheld detector is convenient to carry and take, the whole device lacks a protective shell for protection, so it is easy to damage the device. Moreover, when the device is preheated and detected, holding it for a long time will cause fatigue to the user. When placed on a platform, the screen of the detector is also in a horizontal state, which is not convenient for people to observe the data display on the screen, resulting in inconvenient use. The existing handheld combustible gas detector cannot be placed obliquely.

[0004] Therefore, it is necessary to solve the problem that the existing handheld combustible gas detector cannot be placed obliquely and it is not convenient to observe the data display on the screen when placed horizontally. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a gas concentration detection device for a combustible gas alarm to solve the problem that the existing handheld combustible gas detector cannot be placed obliquely and it is not convenient to observe the data display on the screen when placed horizontally in view of the above-mentioned technical deficiencies.

[0006] The technical solution adopted by the utility model is: to provide a gas concentration detection device for a combustible gas alarm, including a combustible gas detector, characterized in that it further includes:

[0007] A protective shell, the inside of the protective shell has an inner cavity, the upper end of the protective shell has a window, the window is communicated with the inner cavity, the upper end of the protective shell also has a fixing plate, the fixing plate is located beside the window, and the inner cavity is used to place the combustible gas detector. When the combustible gas detector is located in the inner cavity, the fixing plate is located above the combustible gas detector;

[0008] A first protection plate, one end of which is hinged to one side of the window;

[0009] A second protection plate, one end of which is hinged to the other end of the first protection plate, and the first protection plate and the second protection plate are used to cover the window;

[0010] The upper end of the side wall of the protective case has a clamping groove. After the first protection plate rotates, the first protection plate and the second protection plate are in an inclined state, and the end of the second protection plate is used to abut against the clamping groove. After the end of the second protection plate abuts against the clamping groove, the combustible gas detector is inclined and arranged beside the second protection plate.

[0011] To further optimize this technical solution, the end of the second protection plate has a plug-in plate, and one end of the fixing plate close to the second protection plate has a plug-in groove that is plugged and matched with the plug-in plate. After the second protection plate covers the window, the plug-in plate is plugged into the plug-in groove.

[0012] To further optimize this technical solution, it further includes:

[0013] A plug-in post is arranged on the second protection plate. After the plug-in plate is plugged into the plug-in groove, the plug-in post is plugged into the clamping groove.

[0014] To further optimize this technical solution, it further includes:

[0015] An outer convex block is arranged at the end of the plug-in post and is located outside the clamping groove.

[0016] To further optimize this technical solution, it further includes:

[0017] An outer convex plate is arranged on the second protection plate on the side close to the plug-in plate.

[0018] To further optimize this technical solution, it further includes:

[0019] A protective cotton is arranged in the inner cavity and is used to support the combustible gas detector.

[0020] To further optimize this technical solution, the back of the combustible gas detector has an anti-vibration strip. After the combustible gas detector is inclined and arranged beside the second protection plate, the combustible gas detector abuts against the second protection plate, and the anti-vibration strip is used to abut against the second protection plate or the upper end of the first protection plate.

[0021] To further optimize this technical solution, the back of the protective case has an anti-slip strip.

[0022] The beneficial effects of the present utility model are as follows:

[0023] 1. Place the combustible gas detector in the protective case. When the first protection plate and the second protection plate are in a horizontal state, they cooperate with the fixing plate to close the upper end of the protective case, which can play a protective role for the combustible gas detector, reduce damage such as bumps during carrying and transportation. The volume of the protective case is slightly larger than that of the combustible gas detector, and the overall occupied space is still small, which is convenient for carrying.

[0024] 2. The protective case is horizontally placed on a platform. After the first protective plate rotates, the end of the second protective plate is lifted, and the lower end of the second protective plate abuts against the clamping groove. Then, a triangular support is formed among the first protective plate, the second protective plate, and the side wall of the protective case, providing a supporting effect on the combustible gas detector. When taking out the combustible gas detector from the inner cavity, the combustible gas detector can be tilted and leaned beside the second protective plate, and it is placed stably, facilitating the user to observe the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present utility model;

[0026] Figure 2 is Figure 1 a schematic structural diagram of the back of the protective case in a state;

[0027] Figure 3 is Figure 1 a schematic top view structural diagram in a state;

[0028] Figure 4 is Figure 3 a sectional structural diagram at the A - A position in ;

[0029] Figure 5 is Figure 3 a sectional structural diagram at the B - B position in ;

[0030] Figure 6 is Figure 5 a partially enlarged structural diagram at A in ;

[0031] Figure 7 is a schematic structural diagram of the present utility model in a use state;

[0032] Figure 8 is a schematic structural diagram of the present utility model in a state where the window is opened;

[0033] Figure 9 is Figure 7 a schematic side view structural diagram in a state;

[0034] Description of reference numerals in the drawings: 1. Combustible gas detector; 101. Anti - sway strip; 2. Protective case; 201. Inner cavity; 202. Window; 203. Fixed plate; 2031. Insertion slot; 204. Clamping groove; 205. Anti - slip strip; 3. First protective plate; 4. Second protective plate; 401. Insertion plate; 402. Insertion post; 403. Outer convex block; 404. Outer convex plate; 5. Protective cotton. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0036] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, for components with the same structure or function in some drawings, only one of them is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0037] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0039] As Figures 1-9 shown, a gas concentration detection device for a combustible gas alarm includes a combustible gas detector 1, and further includes: a protective shell 2, which has an inner cavity 201 inside, a window 202 at the upper end of the protective shell 2, the window 202 is communicated with the inner cavity 201, and a fixing plate 203 is also provided at the upper end of the protective shell 2, the fixing plate 203 is located beside the window 202, and the inner cavity 201 is used to place the combustible gas detector 1. When the combustible gas detector 1 is located in the inner cavity 201, the fixing plate 203 is located above the combustible gas detector 1; a first protection plate 3, one end of which is hinged to one side of the window 202; a second protection plate 4, one end of which is hinged to the other end of the first protection plate 3, and the first protection plate 3 and the second protection plate 4 are used to cover the window 202; a clamping groove 204 is provided at the upper end of the side wall of the protective shell 2. When the first protection plate 3 rotates, the first protection plate 3 and the second protection plate 4 are in an inclined state, and the end of the second protection plate 4 is used to abut against the clamping groove 204. When the end of the second protection plate 4 abuts against the clamping groove 204, the combustible gas detector 1 is inclined and arranged beside the second protection plate 4.

[0040] When in use and during transportation and carrying, the combustible gas detector 1 is placed in the inner cavity 201. The first protection plate 3 and the second protection plate 4 are horizontally placed to cover the window 202, forming a covered box structure, which plays a protective role for the combustible gas detector 1 in the inner cavity 201. When used in a detection environment, the protective shell 2 is horizontally placed on a platform in the environment. The first protection plate 3 and the second protection plate 4 are opened. The rear end of the first protection plate 3 is the rotation axis position, and the rear end of the second protection plate 4 is rotatably connected to the front end of the first protection plate 3. As Figure 7 shown, after rotation, the window 202 is opened, and the combustible gas detector 1 is taken out. The first protection plate 3 and the second protection plate 4 form a triangular support structure, and the front end of the second protection plate 4 is located at the lower side and can be inserted into the clamping groove 204 to form a stable support. The combustible gas detector 1 is placed obliquely, with the lower part located in the inner cavity 201 and the upper part leaning against one side of the second protection plate 4. One side of the lower part of the combustible gas detector 1 can abut against one end of the fixing plate 203 to form a limiting function, making the placement more stable.

[0041] On the inner wall of the inner cavity 201, a rubber pad can be set to contact the combustible gas detector 1, which can play a role in increasing friction and protection.

[0042] At the rotation connection of the second protection plate 4 and the first protection plate 3, it can be through a hinge structure, a hinge structure, or integrally formed. The wall thickness at the rotation connection is relatively thin and can be bent.

[0043] Furthermore, the second protection plate 4 has a plug-in plate 401 at its end. One end of the fixing plate 203 close to the second protection plate 4 has a plug-in groove 2031 that is inserted and matched with the plug-in plate 401. After the second protection plate 4 covers the window 202, the plug-in plate 401 is inserted into the plug-in groove 2031.

[0044] When in use, when the second protection plate 4 and the first protection plate 3 are parallel to the fixing plate 203 and cover the window 202, the detachable connection of the second protection plate 4 and the first protection plate 3 to the protective shell 2 respectively or simultaneously can be realized through a snap structure in the prior art. As Figure 6 shown, the plug-in plate 401 at the end of the second protection plate 4 can be inserted into the plug-in groove 2031 to achieve plug-in connection. Both the fixing plate 203 and the second protection plate 4 can be made of plastic or other materials with a certain deformation ability, which can provide elastic deformation to make the plug-in plate 401 and the plug-in groove 2031 hard to disengage. It requires a certain amount of external force to achieve, so it has a protective function and will not easily open the second protection plate 4 automatically.

[0045] Furthermore, it also includes: a plug-in column 402, which is arranged on the second protection plate 4. After the plug-in plate 401 is inserted into the plug-in groove 2031, the plug-in column 402 is inserted into the clamping groove 204.

[0046] In use, when the second protection plate 4 covers the window 202 in parallel with the fixing plate 203, the plug-in plate 401 is plugged into the plug-in slot 2031. At this time, the plug-in post 402 is plugged into the positioning slot 204, which can improve the positioning ability of the second protection plate 4 and prevent accidental opening. Similarly, when the force is relatively large, the second protection plate 4 and the fixing plate 203 are deformed, and the second protection plate 4 can be opened.

[0047] Furthermore, it further includes: an outer convex block 403, which is arranged at the end of the plug-in post 402 and is located outside the positioning slot 204. It further includes: an outer convex plate 404, which is arranged on one side of the second protection plate 4 close to the plug-in plate 401.

[0048] In use, the arrangement of the outer convex block 403 facilitates the user to apply force with the finger to push the outer convex block 403 upward, so that the second protection plate 4 can be opened more smoothly, and the plug-in plate 401 is disengaged from the plug-in slot 2031.

[0049] The outer convex plate 404 facilitates applying force with the finger to push the end of the second protection plate 4 to move, so that the plug-in plate 401 is disengaged from the plug-in slot 2031.

[0050] Furthermore, it further includes: a protective cotton 5, which is arranged in the inner cavity 201 and is used to support the combustible gas detector 1.

[0051] In use, the protective cotton 5 in the inner cavity 201 can protect the combustible gas detector 1, and the protective cotton 5 may have a groove adapted to the combustible gas detector 1. The mating relationship (with a gap or abutting and limiting, etc.) between the outer surface of the combustible gas detector 1 and the inner wall of the inner cavity 201 is prior art, and those skilled in the art know how to adapt.

[0052] Furthermore, the back of the combustible gas detector 1 has an anti-vibration strip 101. When the combustible gas detector is inclined and arranged beside the second protection plate 4, the combustible gas detector 1 abuts against the second protection plate 4, and the anti-vibration strip 101 is used to abut against the end of the second protection plate 4 or above the first protection plate 3.

[0053] In use, the combustible gas detector 1 can still be taken out and held by hand. The back is the side opposite to the display screen. The anti-vibration strip 101 facilitates more stable holding. At the same time, when the combustible gas detector 1 is placed obliquely, the anti-vibration strip 101 can abut against or hang on the rotation connection of the second protection plate 4 or the first protection plate 3. At this time, the second protection plate 4 and the first protection plate 3 form a triangular support, and the rotation connection between the two is located above.

[0054] Furthermore, the back of the protective shell 2 has an anti-slip strip 205.

[0055] In use, the anti-slip strip 205 is arranged on the back of the protective shell 2, which is convenient for stable placement on a platform.

[0056] It can be understood that the present utility model is described through some embodiments. Those skilled in the art will know that without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A combustible gas alarm gas concentration detection device, comprising a combustible gas detector (1), characterized in that: Also includes: A protective shell (2), wherein the protective shell (2) has an inner cavity (201) inside, and the upper end of the protective shell (2) has a window (202), wherein the window (202) is communicated with the inner cavity (201), and the upper end of the protective shell (2) also has a fixing plate (203), wherein the fixing plate (203) is located beside the window (202), and the inner cavity (201) is used to place the combustible gas detector (1), and when the combustible gas detector (1) is located in the inner cavity (201), the fixing plate (203) is located above the combustible gas detector (1); A first protective plate (3), one end of which is hinged to one side of the window (202); a second protective plate (4), one end of which is hinged to the other end of the first protective plate (3), the first protective plate (3) and the second protective plate (4) being used to cover the window (202); The upper end of the side wall of the protective shell (2) is provided with a locking groove (204); when the first protective plate (3) is rotated, the first protective plate (3) and the second protective plate (4) are in an inclined state, and the end of the second protective plate (4) is used to abut against the locking groove (204); when the end of the second protective plate (4) abuts against the locking groove (204), the combustible gas detector (1) is tilted and arranged beside the second protective plate (4).

2. A combustible gas alarm gas concentration detection device according to claim 1, characterized in that: The second protective plate (4) has a plug-in plate (401) at its end, and the fixed plate (203) has a plug-in slot (2031) at one end close to the second protective plate (4) for plugging with the plug-in plate (401). When the second protective plate (4) covers the window (202), the plug-in plate (401) is plugged into the plug-in slot (2031).

3. A combustible gas alarm gas concentration detection device according to claim 2, characterized in that: Also includes: The plug-in column (402) is arranged on the second protection plate (4); when the plug-in plate (401) is plugged into the plug-in slot (2031), the plug-in column (402) is plugged into the locking slot (204).

4. A combustible gas alarm gas concentration detection device according to claim 3, characterized in that: Also includes: The external protrusion (403) is arranged at the end of the plug-in column (402) and is located outside the locking groove (204).

5. A combustible gas alarm gas concentration detection device according to claim 3 or 4, characterized in that: Also includes: An outer convex plate (404) is arranged on a side of the second protection plate (4) close to the plug-in plate (401).

6. A combustible gas alarm gas concentration detection device according to claim 1, characterized in that: Also includes: The protective cotton (5) is arranged in the inner cavity (201) and is used to support the combustible gas detector (1).

7. A combustible gas alarm gas concentration detection device according to claim 1, characterized in that: The back of the combustible gas detector (1) is provided with an anti-sway strip (101). When the combustible gas detector (1) is tilted and arranged beside the second protective plate (4), the combustible gas detector (1) abuts against the second protective plate (4), and the anti-sway strip (101) is used to abut against the end above the second protective plate (4) or the first protective plate (3).

8. A combustible gas alarm gas concentration detection device according to claim 1, characterized in that: The back side of the protective shell (2) is provided with an anti-slip strip (205).

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