Combustible gas detector convenient to disassemble and assemble

Abstract

The combustible gas detector comprises a positioning ring, limiting holes are formed in the front sides and the rear sides of the left wall and the right wall of the positioning ring, fixing rods penetrate through the inner sides of the limiting holes and are slidably connected with the limiting holes, pulling plates are fixedly connected to the ends, away from the positioning ring, of the front fixing rod and the rear fixing rod, and through holes are formed in the middles of the pulling plates. Connecting rods penetrate through and are slidably connected to the middles of the through holes and are fixedly connected to the middles of the left wall and the right wall of the positioning ring correspondingly, and springs are fixedly connected to the peripheries of the connecting rods in the middles of the left wall and the right wall of the positioning ring. According to the combustible gas detector convenient to disassemble and assemble, when the detector body needs to be installed, a pull plate is pulled outwards to enable fixing rods on the two sides to move outwards, then a positioning block is aligned with a positioning groove, then the detector body is pressed downwards to enable the positioning block to be inserted into the positioning groove, and at the moment, a limiting hole coincides with a clamping hole; and the limitation on the pulling plate is relieved to insert the fixing rod into the clamping hole to complete the installation operation of the detector main body.

Description

Technical Field

[0001] The utility model relates to the technical field of combustible gas detection, in particular to a combustible gas detector which is easy to assemble and disassemble. Background Art

[0002] Combustible gas detectors respond to the concentration of one or more combustible gases. They come in two types: catalytic and infrared optical. Catalytic combustible gas detectors measure combustible gas concentrations by measuring the resistance change of a heated platinum wire. When combustible gas enters the detector, it causes an oxidation reaction on the surface of the platinum wire, resulting in flameless combustion. The heat generated raises the temperature of the platinum wire, causing a change in its resistivity. Infrared optical sensors use the absorption principle of infrared light sources to detect hydrocarbon combustible gases in the field.

[0003] In the prior art, general combustible gas detectors are fixed on the roof by screws. However, when the combustible gas detector needs to be disassembled and maintained later, the staff also needs to remove the screws, which is very inconvenient. Therefore, a combustible gas detector that is easy to disassemble and assemble is needed. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The utility model discloses a combustible gas detector which is easy to disassemble and assemble, comprising a mounting base plate, wherein a quick disassembly mechanism is provided on the top of the mounting base plate;

[0006] The quick disassembly and assembly mechanism includes a positioning ring, and limiting holes are provided on the front and rear sides of the left and right walls of the positioning ring. The inner sides of the limiting holes are penetrated by and slidably connected with fixing rods, and the front and rear groups of the fixing rods are fixedly connected to the pull plate at one end away from the positioning ring, and the middle part of the pull plate is provided with a through hole, and the middle part of the through hole is penetrated by and slidably connected with a connecting rod, and the connecting rods are respectively fixedly connected to the middle of the left and right walls of the positioning ring, and the outer periphery of the connecting rods in the middle of the left and right walls of the positioning ring is fixedly connected with a spring, and the other end of the spring is fixedly connected to the middle of the pull plate, and the ends of the two groups of connecting rods away from each other are fixedly connected with a baffle.

[0007] As a preferred technical solution of the present invention, the inner side wall of the positioning ring is provided with a plurality of groups of annularly distributed positioning grooves, and the positioning ring is fixedly connected to the middle part of the bottom wall of the mounting base plate.

[0008] As a preferred technical solution of the present invention, bolts are provided at the four corners of the mounting base plate, and a detector body is provided on the inner side of the positioning ring.

[0009] As a preferred technical solution of the present invention, a plurality of groups of annularly distributed positioning blocks are fixedly connected to the bottom of the outer periphery of the detector body, and the positioning blocks are all gap-matched with the positioning grooves.

[0010] As a preferred technical solution of the present invention, the bottom ends of the front and rear sides of the left and right walls of the detector body are both provided with clamping holes, and the clamping holes are clearance-matched with the fixing rods.

[0011] As a preferred technical solution of the present invention, the fixing rods are respectively located at the front and rear sides of the connecting rod, and the limiting holes are respectively located at the front and rear sides of the left and right groups of positioning grooves.

[0012] As a preferred technical solution of the present invention, the positioning ring is clearance-matched with the detector body, and the positioning ring is located in the middle between the four groups of bolts.

[0013] The beneficial effects of the utility model are:

[0014] 1. This combustible gas detector is easy to disassemble and assemble. When the detector body needs to be installed, the pull plate is pulled outward to move the fixing rods on both sides outward. Then, the positioning block is aligned with the positioning slot and the detector body is pressed down to insert the positioning block into the positioning slot. At this time, the limit hole and the clamping hole coincide with each other, and the restriction of the pull plate is released to allow the fixing rods to be inserted into the clamping hole to complete the installation of the detector body.

[0015] 2. This type of combustible gas detector that is easy to disassemble and assemble can be removed from the positioning ring by pulling the pull plates on both sides outward when the detector needs to be inspected. The pull plates move outward while moving the fixing rods, so that the fixing rods are pulled out of the card holes. This reduces the difficulty of disassembling the detector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic top view of the overall structure of a combustible gas detector that is easy to disassemble and assemble in the utility model;

[0018] Figure 2 This is a side view of the overall structure of a combustible gas detector that is easy to disassemble and assemble;

[0019] Figure 3 This is a schematic diagram of the internal structure of a combustible gas detector that is easy to disassemble and assemble;

[0020] Figure 4The utility model is a schematic diagram of the installation structure of a combustible gas detector which is easy to disassemble and assemble.

[0021] In the figure: 1. Mounting base; 2. Quick disassembly and assembly mechanism; 3. Positioning ring; 4. Positioning groove; 5. Detector body; 6. Positioning block; 7. Clamping hole; 8. Fixing rod; 9. Connecting rod; 10. Spring; 11. Pull plate; 12. Baffle; 13. Limiting hole; 14. Bolt; 15. Through hole. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0023] Example: Figure 1-4 As shown, the utility model is a combustible gas detector that is easy to disassemble and assemble, comprising a mounting base plate 1, and a quick disassembly mechanism 2 is provided on the top of the mounting base plate 1;

[0024] The quick disassembly and assembly mechanism 2 includes a positioning ring 3, and limiting holes 13 are provided on the front and back sides of the left and right walls of the positioning ring 3. The inner sides of the limiting holes 13 are penetrated and slidably connected with fixing rods 8. By inserting the fixing rods 8 into the card hole 7, the detector body 5 can be fixed to the inner side of the positioning ring 3. The front and rear groups of fixing rods 8 are fixedly connected to the pull plate 11 at one end away from the positioning ring 3. A through hole 15 is provided in the middle of the pull plate 11. A connecting rod 9 is penetrated and slidably connected in the middle of the through hole 15. Pulling the pull plate 11 can make the fixing rods 8 on both sides move synchronously. The connecting rods 9 are respectively fixedly connected to the middle of the left and right walls of the positioning ring 3. A spring 10 is fixedly connected to the outer periphery of the connecting rod 9 in the middle of the left and right walls of the positioning ring 3. The other end of the spring 10 is fixedly connected to the middle of the pull plate 11. The spring 10 can push the fixing rod 8 to reset after the pull plate 11 is released. The two groups of connecting rods 9 are fixedly connected to a baffle 12 at one end away from each other.

[0025] The inner wall of the positioning ring 3 is provided with multiple groups of annularly distributed positioning grooves 4 . The positioning ring 3 is fixedly connected to the middle of the bottom wall of the installation base plate 1 . The positioning ring 3 is used to determine the installation position of the detector body 5 .

[0026] Among them, bolts 14 are provided at the four corners of the mounting base plate 1 , and the detector body 5 is provided inside the positioning ring 3 . The mounting base plate 1 is fixed to the position where the detector body 5 needs to be installed by the bolts 14 .

[0027] The bottom of the outer periphery of the detector body 5 is fixedly connected with a plurality of groups of annularly distributed positioning blocks 6 , and the positioning blocks 6 are all loosely matched with the positioning grooves 4 .

[0028] Among them, the bottom ends of the front and back sides of the left and right walls of the detector body 5 are both provided with clamping holes 7, and the clamping holes 7 are clearance-matched with the fixing rod 8. The fixing rod 8 is inserted into the inner side of the clamping holes 7 to fix the detector body 5.

[0029] The fixing rods 8 are respectively located at the front and rear sides of the connecting rod 9 , and the limiting holes 13 are respectively located at the front and rear sides of the left and right groups of positioning slots 4 .

[0030] The positioning ring 3 is clearance-matched with the detector body 5 , and the positioning ring 3 is located in the middle between the four groups of bolts 14 .

[0031] Working principle: When the detector body 5 needs to be installed, pull the pull plate 11 outward to move the fixed rods 8 on both sides outward, then align the positioning block 6 with the positioning slot 4 and press the detector body 5 downward to insert the positioning block 6 into the positioning slot 4. At this time, the limit hole 13 coincides with the card hole 7, and the restriction on the pull plate 11 is released to allow the fixed rod 8 to be inserted into the card hole 7, completing the installation operation of the detector body 5. When the detector needs to be inspected, pull the pull plates 11 on both sides outward. During the movement of the pull plate 11 outward, the fixed rod 8 is driven to move outward, so that the fixed rod 8 is pulled out of the card hole 7, so that the detector body 5 can be taken out from the positioning ring 3 for inspection.

[0032] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0033] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A combustible gas detector that is easy to assemble and disassemble, comprising a mounting base (1), characterized in that: A quick disassembly mechanism (2) is provided on the top of the installation base plate (1); The quick disassembly and assembly mechanism (2) comprises a positioning ring (3), and both the front and rear sides of the left and right walls of the positioning ring (3) are provided with limiting holes (13), and the inner sides of the limiting holes (13) are penetrated and slidably connected with fixed rods (8), and the ends of the front and rear groups of the fixing rods (8) away from the positioning ring (3) are fixedly connected with a pull plate (11), and the middle part of the pull plate (11) is provided with a through hole (15), and the middle part of the through hole (15) is penetrated and slidably connected with a connecting rod (9), and the connecting rod (9) is respectively fixedly connected to the middle parts of the left and right walls of the positioning ring (3), and the outer periphery of the connecting rod (9) in the middle parts of the left and right walls of the positioning ring (3) is fixedly connected with a spring (10), and the other end of the spring (10) is fixedly connected to the middle part of the pull plate (11), and the ends of the two groups of connecting rods (9) away from each other are fixedly connected with a baffle (12).

2. The combustible gas detector that is easy to assemble and disassemble according to claim 1, characterized in that: The inner side wall of the positioning ring (3) is provided with a plurality of groups of annularly distributed positioning grooves (4), and the positioning ring (3) is fixedly connected to the middle portion of the bottom wall of the mounting base plate (1).

3. The combustible gas detector that is easy to assemble and disassemble according to claim 1, characterized in that: Bolts (14) are provided at the four corners of the mounting base plate (1), and a detector body (5) is provided inside the positioning ring (3).

4. The combustible gas detector that is easy to assemble and disassemble according to claim 3, characterized in that: The outer bottom of the detector body (5) is fixedly connected to a plurality of groups of annularly distributed positioning blocks (6), and the positioning blocks (6) are all clearance-matched with the positioning grooves (4).

5. The combustible gas detector that is easy to assemble and disassemble according to claim 3, characterized in that: The detector body (5) is provided with a clamping hole (7) at the bottom ends of the front and rear sides of the left and right walls, and the clamping holes (7) are clearance-matched with the fixing rod (8).

6. The combustible gas detector that is easy to assemble and disassemble according to claim 1, characterized in that: The fixing rods (8) are respectively located at the front and rear sides of the connecting rod (9), and the limiting holes (13) are respectively located at the front and rear sides of the left and right groups of positioning slots (4).

7. The combustible gas detector that is easy to assemble and disassemble according to claim 1, characterized in that: The positioning ring (3) is clearance-matched with the detector body (5), and the positioning ring (3) is located in the middle between the four groups of bolts (14).

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