Full display screen type carbon dioxide detector

Abstract

The utility model discloses a full display screen type carbon dioxide detector which comprises a shell, a circuit board, a carbon dioxide monitoring circuit, a display lamp and a light-transmitting cover, the shell is of a cover-shaped structure with an opening in the upper end, a circuit board is installed in the shell, an air inlet space is formed between the circuit board and the inner wall of the shell, a carbon dioxide monitoring circuit is installed on the circuit board, a carbon dioxide sensor is arranged in the carbon dioxide monitoring circuit, and the carbon dioxide sensor is located in the air inlet space; a display lamp is electrically connected with the carbon dioxide monitoring circuit and is exposed from the top surface of the circuit board, a light-transmitting cover located above the circuit board is buckled at the top of the shell, and the light-transmitting cover is made of a light-transmitting material; a vent hole is formed in the side face of the shell and communicates the outside with the air inlet space. The full-display-screen type carbon dioxide detector solves the problem that the area of the side face where the display screen is located is increased due to the fact that the display screen and the vent holes are arranged on the same side face in the prior art.

Description

Technical Field

[0001] The utility model relates to a carbon dioxide detector, in particular to a full-display screen type carbon dioxide detector. Background Art

[0002] The Chinese patent discloses a carbon dioxide gas concentration excessive alarm with application number CN202120406321.7, which includes: a shell, a carbon dioxide content display is arranged at the bottom of the inner surface of the shell, a first baffle is arranged at the bottom of the carbon dioxide content display, and the first baffle is fixedly connected to the shell, an alarm is arranged on the top of the first baffle, a mesh cover is arranged on one side of the shell, a display screen is arranged above the mesh cover, and a control button is arranged on one side of the display screen. Support rods are rotatably connected to both ends of the shell. Two rotating wheels are rotatably connected to the outer surface of the support rod.

[0003] Although the carbon dioxide gas concentration excessive alarm can realize carbon dioxide detection and alarm, the carbon dioxide gas concentration excessive alarm still has the following disadvantages: a vent hole is opened on the mesh cover, and although the vent hole can realize the entry of external gas and the display screen can also display the detection situation, the display screen and the vent hole are arranged on the same side, which increases the area of ​​the side where the display screen is located, resulting in an increase in the volume of the entire carbon dioxide gas concentration excessive alarm and an increase in the occupied space. Utility Model Content

[0004] The utility model provides a full-display screen type carbon dioxide detector, which solves the problem in the prior art that the display screen and the vent hole are arranged on the same side, resulting in an increase in the area of ​​the side where the display screen is located.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a full-display screen type carbon dioxide detector, comprising: a shell, a circuit board, a carbon dioxide monitoring circuit, a display light and a light-transmitting cover; the shell is a cover-shaped structure with an opening at the upper end, a circuit board is installed in the shell, an air intake space is formed between the circuit board and the inner wall of the shell, a carbon dioxide monitoring circuit is installed on the circuit board, a carbon dioxide monitoring circuit has a carbon dioxide sensor, and the carbon dioxide sensor is located in the air intake space; a display light is electrically connected to the carbon dioxide monitoring circuit, the display light leaks out from the top surface of the circuit board, a light-transmitting cover located above the circuit board is buckled on the top of the shell, and the light-transmitting cover is made of light-transmitting material; a vent hole is opened on the side of the shell, and the vent hole connects the outside with the air intake space.

[0007] Preferably, the side surface of the shell protrudes inward to form a boss, which is an arc-shaped structure. The bottom of the boss is tangent to the inner wall of the shell. A recessed groove is formed on the outer wall of the shell side surface, which corresponds to the boss. A rotating support frame is installed in the recessed groove. The rotating support frame can rotate relative to the shell, and the rotating support frame and the shell are positioned by friction.

[0008] Preferably, a hinge hole is provided at the boss, into which a hinge shaft extends, and the hinge shaft is fixed to the rotating support frame.

[0009] Preferably, a snap hole is opened at the boss, and the rotating support frame protrudes to form a snap convexity, and the snap convexity is snap-fitted with the inner wall of the snap hole.

[0010] Preferably, the top surface of the boss is recessed in the vertical direction to form a strip-shaped snap hole.

[0011] Preferably, the rotating support frame is an arc structure.

[0012] Preferably, the locking protrusion is formed with an inclined sliding surface, and the sliding surface is used to jump over the shell to reach the locking hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the present application, firstly, a housing is designed to mount a circuit board on the housing, and a supporting step is arranged on the inner wall of the housing, and the supporting step is used to support the circuit board, so as to realize the function of overhead circuit board on the top of the housing, so that an air intake space is formed between the inner wall of the housing and the circuit board. Only after the air intake space is formed, can the outside gas enter, and can the outside gas entering the air intake space be detected to judge whether there is carbon dioxide in the outside gas. Then, the display light is designed to emerge from the top surface of the circuit board, so that the content displayed by the digital tube composed of the display light can be leaked from the light-transmitting cover, thereby issuing an alarm prompt. Finally, since the vent hole is opened on the side of the housing, and the circuit board is overhead on the top of the housing, the display screen composed of the light-transmitting cover and the display light can be on the top surface of the housing, and the vent hole and the display screen are not on the same plane, so that the area of ​​the top surface or the top surface of the housing can be saved, and the top surface of the housing can be displayed in a full display screen style outside, which is beautiful in appearance, and at the same time, the volume of the entire full display screen type carbon dioxide detector is reduced, and the occupied space is reduced, which is more in line with the user's use requirements.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a full-display screen carbon dioxide detector.

[0017] Figure 2A cross-sectional view of a full-display carbon dioxide detector.

[0018] Figure 3 This is a schematic diagram of the structure of a full-display screen carbon dioxide detector after being cut open.

[0019] Figure 4 It is a schematic diagram of the structure at the rotating support frame.

[0020] Figure 5 It is a schematic diagram of the structure of the shell.

[0021] Figure numerals: housing 1, boss 10, vent hole 11, recessed groove 13, snap hole 14, circuit board 2, light-transmitting cover 3, rotating support frame 4, hinge shaft 40, snap projection 41, sliding surface 410. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0023] like Figures 1 to 5 As shown, the utility model discloses a full-display screen type carbon dioxide detector, comprising: a shell 1, a circuit board 2, a carbon dioxide monitoring circuit (not shown in the figure), a display light (not shown in the figure) and a light-transmitting cover 3; the shell 1 is a cover-shaped structure with an opening at the upper end, the circuit board 2 is installed in the shell 1, an air intake space is formed between the circuit board 2 and the inner wall of the shell 1, a carbon dioxide monitoring circuit is installed on the circuit board 2, a carbon dioxide monitoring circuit has a carbon dioxide sensor, and the carbon dioxide sensor is located in the air intake space; a display light is electrically connected to the carbon dioxide monitoring circuit, the display light leaks out of the top surface of the circuit board 2, a light-transmitting cover 3 located above the circuit board 2 is buckled on the top of the shell 1, and the light-transmitting cover 3 is made of light-transmitting material; a vent 11 is opened on the side of the shell 1, and the vent 11 connects the outside with the air intake space.

[0024] The side of the shell 1 protrudes inward to form a boss 10, which is an arc-shaped structure. The bottom of the boss 10 is tangent to the inner wall of the shell 1. A recessed groove 13 is formed on the outer wall of the side of the shell 1. The recessed groove 13 corresponds to the boss 10. The rotating support frame 4 is installed in the recessed groove 13. The rotating support frame 4 can rotate relative to the shell 1. The rotating support frame 4 and the shell 1 are positioned by friction. The cooperation between the boss 10 and the recessed groove 13 realizes the provision of installation space for the rotating support frame 4, and when the rotating support frame 4 is folded, the rotating support frame 4 can be made not to protrude from the shell 1, thereby maintaining the beautiful appearance of the rotating support frame 4 after folding. The boss 10 is formed because of the formation of the recessed groove 13. When the rotating support frame 4 rotates to a certain distance from the recessed groove 13, the rotating support frame 4 is in an open state, so that the light-transmitting cover 3 can be tilted and kept on the working plane, and the sight angle is suitable for viewing.

[0025] The boss 10 is provided with a hinge hole, into which a hinge shaft 40 is inserted, and the hinge shaft 40 is fixed to the rotating support frame 4. The cooperation between the hinge shaft 40 and the hinge hole realizes the rotating installation of the rotating support frame 4.

[0026] A buckle hole 14 is provided at the boss 10, and the rotating support frame 4 protrudes to form a buckle 41, and the buckle 41 is buckled with the inner wall of the buckle hole 14. The buckle hole 14 cooperates with the buckle 41, so that when the rotating support frame 4 is located in the concave groove 13, the buckle 41 cooperates with the buckle hole 14 to position the rotating support frame 4 stably in the concave groove 13, ensuring a beautiful appearance.

[0027] The top surface of the boss 10 is sunken in the vertical direction to form a strip-shaped snap hole 14. After the housing 1 is formed in the mold, the direction of demoulding the housing 1 is vertical, so the snap hole 14 is designed to be sunken in the vertical direction, so that the snap hole 14 can be formed when the housing 1 is demoulded, avoiding the need for subsequent opening, which leads to a reduction in the strength of the boss 10, and improving production efficiency.

[0028] The rotating support frame 4 is an arc structure. The shape and structure of the rotating support frame 4 match the housing 1 to ensure that the overall appearance is beautiful when the rotating support frame 4 is folded in the recessed groove 13.

[0029] The locking protrusion 41 is formed with an inclined sliding surface 410, and the sliding surface 410 is used to jump over the housing 1 to reach the locking hole 14. The design of the sliding surface 410 makes it easier for the locking protrusion 41 to reach the locking hole 14 through the housing 1.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Full display screen carbon dioxide detector, characterized by: include: A housing (1), a circuit board (2), a carbon dioxide monitoring circuit, a display light and a light-transmitting cover (3); The housing (1) is a cover-shaped structure with an opening at the upper end. A circuit board (2) is installed in the housing (1). An air intake space is formed between the circuit board (2) and the inner wall of the housing (1). A carbon dioxide monitoring circuit is installed on the circuit board (2). A carbon dioxide monitoring circuit includes a carbon dioxide sensor. The carbon dioxide sensor is located in the air intake space. A display light is electrically connected to the carbon dioxide monitoring circuit, and the display light is exposed from the top surface of the circuit board (2). A light-transmitting cover (3) located above the circuit board (2) is buckled on the top of the housing (1), and the light-transmitting cover (3) is made of a light-transmitting material; A vent hole (11) is provided on the side of the shell (1), and the vent hole (11) connects the outside with the air intake space.

2. The full display screen type carbon dioxide detector according to claim 1, characterized in that: The side surface of the shell (1) protrudes inward to form a boss (10), the boss (10) is an arc-shaped structure, the bottom of the boss (10) is tangent to the inner wall of the shell (1), and a recessed groove (13) is formed on the outer wall of the side surface of the shell (1), the recessed groove (13) corresponds to the boss (10), and a rotating support frame (4) is installed in the recessed groove (13). The rotating support frame (4) can rotate relative to the shell (1), and the rotating support frame (4) and the shell (1) are positioned by friction.

3. The full display screen type carbon dioxide detector according to claim 2, characterized in that: A hinge hole is provided at the boss (10), into which a hinge shaft (40) is inserted, and the hinge shaft (40) is fixed to the rotating support frame (4).

4. The full display screen type carbon dioxide detector according to claim 3, characterized in that: A snap hole (14) is provided at the boss (10), and the rotating support frame (4) protrudes to form a snap projection (41), and the snap projection (41) is snap-fitted with the inner wall of the snap hole (14).

5. The full display screen type carbon dioxide detector according to claim 4, characterized in that: The top surface of the boss (10) is recessed in the vertical direction to form a strip-shaped buckle hole (14).

6. The full display screen type carbon dioxide detector according to claim 5, characterized in that: The rotating support frame (4) is an arc structure.

7. The full display screen type carbon dioxide detector according to claim 6, characterized in that: The locking protrusion (41) is formed with an inclined sliding surface (410), and the sliding surface (410) is used to jump over the housing (1) to reach the locking hole (14).

Images