Natural gas leakage detector

Abstract

The utility model relates to the technical field of natural gas leakage detection, and discloses a natural gas leakage detector which comprises a shell, an air outlet is formed in the shell, a fan is fixedly connected in the shell, and a dustproof assembly is arranged in the shell. The dustproof assembly comprises a protective cover, the protective cover is slidably connected into the shell, a connecting assembly is arranged on the outer wall of the protective cover, a limiting sleeve is fixedly connected into the protective cover, and a reset assembly is arranged in the limiting sleeve. According to the utility model, during detection, the fan sucks external air into the housing after the external air is filtered by the dustproof net, and when the dustproof net is cleaned, the protective cover is pressed and then rotated by a certain angle, so that the protective cover is separated from the locking groove through the connecting rod, and the effects of assisting in air suction detection and preventing dust are achieved; the natural gas leakage detector solves the problem that a traditional natural gas leakage detector drifts away only after natural gas leakage and is not sensitive in detection, and the practicability of the natural gas leakage detector is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas leakage detection technical field especially relates to a natural gas leakage detector. BACKGROUND

[0002] Leakage detector is a kind of equipment for detecting gas or liquid leakage, widely used in various industries, such as petroleum, natural gas, chemical industry, electric power, building etc., natural gas is a kind of combustible gas, if leakage and mix with oxygen in air, reach certain concentration range (explosion limit), will explode or cause fire, in order to be able to monitor gas concentration in real time, once finding leakage, timely send alarm, help to avoid the occurrence of disastrous consequences, thus need to use natural gas leakage detector.

[0003] Natural gas leakage detector can be divided into various types, respectively semiconductor type, electrochemical type and catalytic combustion type etc., according to different use scene, gas type, precision demand and cost consideration, it is very important to select suitable type of natural gas leakage detector, wherein semiconductor type is identified gas leakage by detecting the resistance change caused by the reaction of gas and semiconductor surface.

[0004] However, the natural gas leakage detector in the prior art has a common problem: the conventional detection method relies on gas diffusion after natural gas leakage, causing low sensitivity of the device response, and unable to effectively capture the leakage gas in the early stage. This results in the detection effect of the detector being not sensitive enough, especially in high-risk areas, missing the opportunity for early warning. In addition, the conventional device often needs to disassemble multiple components during maintenance and cleaning, which is cumbersome and time-consuming to operate, reducing the convenience of using the device. These problems not only affect the performance of the detector, but also affect the long-term stability and user experience of the device. UTILITY MODEL CONTENTS

[0005] To make up for the above shortcomings, the utility model provides a natural gas leakage detector, aiming at improving the problem that the conventional natural gas leakage detector is less sensitive in detecting the natural gas leakage after it drifts.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a natural gas leakage detector, comprising a shell, an air outlet is formed in the inside of the shell, a fan is fixedly connected in the inside of the shell, a dustproof assembly is arranged in the inside of the shell.

[0007] The dustproof assembly comprises a protective cover, the protective cover is slidingly connected in the inside of the shell, a connecting assembly is arranged on the outer wall of the protective cover, a limiting sleeve is fixedly connected in the inside of the protective cover, a reset assembly is arranged in the inside of the limiting sleeve, a dust screen is slidingly connected to the outer wall of the limiting sleeve, and a support is fixedly connected in the inside of the shell.

[0008] As a further description of the above technical solutions:

[0009] The connecting assembly comprises a connecting rod, one end of the connecting rod is fixedly connected to the outer wall of the protective cover, a locking groove is formed in the inside of the shell, and the connecting rod is slidingly connected in the locking groove.

[0010] As a further description of the above technical solutions:

[0011] The reset assembly comprises a spring, the spring is arranged in the limiting sleeve, one end of the spring is fixedly connected to the inside of the limiting sleeve, and the other end of the spring is fixedly connected to the top of the support.

[0012] As a further description of the above technical solutions:

[0013] The bottom of the shell is provided with a base, the top of the base is fixedly connected with a limiting block, and the limiting block is embedded with the shell.

[0014] As a further description of the above technical solutions:

[0015] The inside of the base is provided with a clamping groove, and the inside of the base is provided with a reinforcing groove.

[0016] As a further description of the above technical solutions:

[0017] The outer wall of the shell is fixedly connected with a connecting block, and the inside of the connecting block is provided with a deformation groove.

[0018] As a further description of the above technical solutions:

[0019] One side of the connecting block is fixedly connected with a clamping block, and the clamping block is embedded with the clamping groove.

[0020] As a further description of the above technical solutions:

[0021] One side of the clamping block is fixedly connected with a convex strip, and the convex strip is embedded with the reinforcing groove.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1、 the utility model discloses a fan first detects the outside air and sucks into the shell after filtering through the dust screen, and then discharges from the air outlet, when the dust screen needs to be replaced or cleaned, press the protective cover and then rotate a certain angle, make the protective cover separate with the locking groove through the connecting rod, reach the effect of auxiliary suction detection and dust prevention, solve the problem that the traditional natural gas leakage detector is only scattered after natural gas leakage, and the detection is not sensitive, improve the practicality of the natural gas leakage detector.

[0024] 2. In the utility model, the base is embedded into the shell through the limiting block, then the connecting block of the outer wall of the shell drives the clamping block to be embedded into the clamping groove, and the protrusions on the side of the clamping block are embedded into the reinforcing grooves to improve the connecting strength between the clamping block and the clamping groove, so that the effect of facilitating installation is achieved, the problem that the traditional natural gas leakage detector needs an operator to combine the shell through bolts is solved, and the convenience of the natural gas leakage detector is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A perspective view of a natural gas leakage detector is provided for the utility model;

[0026] Figure 2 A dust screen explosion structure schematic view of a natural gas leakage detector is provided for the utility model;

[0027] Figure 3 A clamping block structure schematic view of a natural gas leakage detector is provided for the utility model.

[0028] LEGEND:

[0029] 1, shell; 2, fan; 3, support; 4, locking groove; 5, protective cover; 6, connecting rod; 7, limiting sleeve; 8, spring; 9, dust screen; 10, air outlet; 11, base; 12, limiting block; 13, connecting block; 14, deformation groove; 15, clamping block; 16, protrusion; 17, clamping groove; 18, reinforcing groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] REFERENCE Figure 1 and Figure 2 An embodiment provided by the utility model: a natural gas leakage detector, comprising a shell 1, the shell 1 is internally provided with an air outlet 10 for air discharge. The shell 1 is internally fixedly connected with a fan 2, the fan 2 is used to suck external air and filter through a dustproof assembly to prevent impurities in the air from entering the shell 1 inside;

[0032] The dustproof assembly comprises a protective cover 5 which is slidingly connected inside the shell 1 for protecting the dust screen 9 and providing a convenient maintenance mode. The outer wall of the protective cover 5 is provided with a connecting assembly for connecting the protective cover 5 and the shell 1, facilitating the disassembly and replacement of the protective cover 5. The protective cover 5 is fixedly connected with a limiting sleeve 7 inside, which is used to provide support and keep the position of the protective cover 5. The limiting sleeve 7 is provided with a reset assembly inside, which is used to automatically restore the original position of the protective cover 5 after it is disassembled, ensuring the stability of the device when not in use. The limiting sleeve 7 is slidingly connected with a dust screen 9 outside, which filters impurities and dust in the air to prevent them from entering the sensitive components inside the shell 1. The shell 1 is fixedly connected with a support 3 inside, which is used to support the fixed position of the dust screen 9 and the limiting sleeve 7. The connecting assembly comprises a connecting rod 6 which is fixedly connected at one end to the outer wall of the protective cover 5 and slidingly connected at the other end to the locking groove 4 inside the shell 1. The connecting rod 6 is slidingly connected in the locking groove 4, ensuring that the protective cover 5 can be conveniently disassembled and installed when needed. The reset assembly comprises a spring 8 which is arranged inside the limiting sleeve 7 for providing a spring restoring effect. One end of the spring 8 is fixedly connected inside the limiting sleeve 7, and the other end is fixedly connected to the top of the support 3, ensuring that when the protective cover 5 is disassembled, the protective cover 5 can be returned to the appropriate position under the action of the spring 8, maintaining the stability and dustproof function of the system.

[0033] Specifically, the fan 2 sucks the external air into the shell 1 after effectively filtering it through the dust screen 9, thereby preventing fine dust particles in the air from entering the shell 1 and avoiding clogging or damage to the internal precision components. The filtered air is then smoothly discharged through the air outlet 10, ensuring stable and clean airflow. When it is necessary to replace or clean the dust screen 9, the protective cover 5 only needs to be pressed gently and then rotated by a certain angle, so that the protective cover 5 is separated from the locking groove 4 through the connecting rod 6. At this time, the protective cover 5 is stably supported and driven by the tension of the spring 8, and is separated from the shell 1, facilitating the user to maintain and clean.

[0034] Referring to Figure 3The bottom of the shell 1 is provided with a base 11 for supporting the entire device and providing a stable mounting base to ensure that the probe does not tilt or become unstable during use. The top of the base 11 is fixedly connected to a limiting block 12 for precise fitting with the shell 1 to ensure that the shell 1 can be stably fitted on the base 11 during installation, thereby improving the overall structural stability of the device. The limiting block 12 is fitted with the shell 1 to prevent loosening or misalignment of the connection between the shell 1 and the base 11. The base 11 is internally provided with a clamping groove 17 for use in cooperation with the clamping block 15 to ensure firm and reliable connection between the shell 1 and the base 11. The base 11 is internally provided with a reinforcing groove 18 to provide additional support structure to enhance the fixing effect between the base 11 and the shell 1, preventing damage or loosening of the connection part during use due to external forces. The outer wall of the shell 1 is fixedly connected with a connecting block 13 for cooperation with the clamping block 15 to tightly connect the shell 1 and the base 11 by sliding or fixed mode. The connecting block 13 is internally provided with a deformation groove 14, which enables the connecting block 13 to deform when necessary to facilitate disassembly and reassembly, simplifying the maintenance and repair process of the device. The clamping block 15 is fixedly connected to one side of the connecting block 13 and cooperates with the base 11 through the clamping groove 17 to achieve stable connection. The clamping block 15 and the clamping groove 17 are fitted to ensure the tightness of the connection to prevent loosening or falling during use. The clamping block 15 is fixedly connected with a protrusion 16 on one side, which is fitted with the reinforcing groove 18 to further enhance the connection strength between the clamping block 15 and the base 11, ensuring the stability and durability of the entire device during long-term use.

[0035] Specifically, when the shell 1 needs to be combined with the base 11, the base 11 is stably embedded in the shell 1 through the limiting block 12 to ensure tight connection between the two. Then, the connecting block 13 on the outer wall of the shell 1 drives the clamping block 15 to be precisely embedded in the clamping groove 17, forming a firm connection between the clamping block 15 and the clamping groove 17 to ensure the stability of the entire structure. In particular, the protrusion 16 on one side of the clamping block 15 is embedded in the reinforcing groove 18 to effectively enhance the connection strength between the clamping block 15 and the clamping groove 17, further improving the overall structural firmness. If disassembly is required, the clamping block 15 can be gently shaken to produce the necessary deformation through the deformation groove 14 in the connecting block 13, thereby smoothly separating the clamping block 15 from the clamping groove 17.

[0036] Working principle: when using the natural gas leakage detector, first, the detection fan 2 inhales the external air into the shell 1 after filtering through the dust screen 9, preventing dust in the air from being sucked into the shell 1 and causing internal element blockage, and then discharging from the air outlet 10, when it is necessary to replace or clean the dust screen 9, only need to press the protective cover 5 and then rotate a certain angle, make the protective cover 5 separate from the locking slot 4 through the connecting rod 6, and then the protective cover 5 is supported by the tension of the spring 8, drive the protective cover 5 and the shell 1 separate, achieve the effect of auxiliary air suction detection and dust prevention;

[0037] When it is necessary to combine the shell 1 and the base 11, the base 11 is embedded into the shell 1 through the limiting block 12, and then the connecting block 13 of the outer wall of the shell 1 drives the clamping block 15 to be embedded into the clamping groove 17, and the convex strip 16 on one side of the clamping block 15 is embedded into the reinforcing groove 18 to improve the connection strength between the clamping block 15 and the clamping groove 17, when disassembling, only need to swing the clamping block 15, make the clamping block 15 deform through the deformation slot 14 inside the connecting block 13, make the clamping block 15 and the clamping groove 17 separate, achieve the effect of convenient installation.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A natural gas leak detector, comprising a housing (1), characterized in that: An air outlet (10) is provided inside the outer shell (1), a fan (2) is fixedly connected inside the outer shell (1), and a dustproof component is provided inside the outer shell (1). The dustproof component includes a protective cover (5), which is slidably connected inside the outer shell (1). A connecting component is provided on the outer wall of the protective cover (5). A limiting sleeve (7) is fixedly connected inside the protective cover (5). A reset component is provided inside the limiting sleeve (7). A dustproof net (9) is slidably connected on the outer wall of the limiting sleeve (7). A bracket (3) is fixedly connected inside the outer shell (1).

2. A natural gas leak detector according to claim 1, characterized in that: The connecting assembly includes a connecting rod (6), one end of which is fixedly connected to the outer wall of the protective cover (5). A locking groove (4) is provided inside the outer shell (1), and the connecting rod (6) is slidably connected inside the locking groove (4).

3. A natural gas leak detector according to claim 1, characterized in that: The reset assembly includes a spring (8), which is disposed inside the limiting sleeve (7). One end of the spring (8) is fixedly connected inside the limiting sleeve (7), and the other end of the spring (8) is fixedly connected to the top of the bracket (3).

4. A natural gas leak detector according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with a base (11), and a limiting block (12) is fixedly connected to the top of the base (11). The limiting block (12) is fitted into the outer shell (1).

5. A natural gas leak detector according to claim 4, characterized in that: The base (11) has a slot (17) inside and a reinforcing groove (18) inside.

6. A natural gas leak detector according to claim 1, characterized in that: A connecting block (13) is fixedly connected to the outer wall of the outer shell (1), and a deformation groove (14) is provided inside the connecting block (13).

7. A natural gas leak detector according to claim 6, characterized in that: A locking block (15) is fixedly connected to one side of the connecting block (13), and the locking block (15) is engaged with the locking slot (17).

8. A natural gas leak detector according to claim 7, characterized in that: A protrusion (16) is fixedly connected to one side of the card block (15), and the protrusion (16) is engaged with the reinforcing groove (18).

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