Natural gas leakage prevention early warning device

Abstract

The utility model provides a natural gas leak-proof early warning device, and relates to the technical field of gas alarms, the natural gas leak-proof early warning device comprises a mounting shell fixed on a wall surface and an alarm detachably mounted on the mounting shell, a mounting groove is formed in the inner wall of the mounting shell, a mounting block is fixed on the alarm, the mounting block is in plug-in fit with the mounting groove, and the alarm is detachably mounted on the mounting groove. And a clamping mechanism for clamping and fixing the mounting block is arranged at the mounting groove on the mounting shell. The alarm device has the effect of being convenient to disassemble, overhaul and maintain.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gas alarmers, in particular to a natural gas leakage prevention early warning device. BACKGROUND

[0002] A gas leakage alarm is also called a gas leakage detection alarm instrument. When natural gas is widely used in industrial environments and daily life environments, when natural gas leaks, the gas leakage alarm detects that the concentration of natural gas reaches the alarm value set by the alarm, and the gas leakage alarm sends out a sound and light alarm signal to remind personnel to evacuate, forcibly ventilate, shut down equipment and take other safety measures. The gas leakage alarm is a natural gas leakage prevention early warning device.

[0003] In the use process of the existing gas leakage alarm, the common way to install the gas leakage prevention alarm on a wall is to use multiple screws for fixation. The process of installing the gas alarm using multiple screws is complicated, and when the gas leakage alarm needs to be repaired or replaced due to reaching the service life, the disassembly process is troublesome. CONTENT OF THE INVENTION

[0004] In order to overcome the technical problems of the prior art, the application provides a natural gas leakage prevention early warning device.

[0005] The natural gas leakage prevention early warning device provided by the application adopts the following technical scheme:

[0006] A natural gas leakage prevention early warning device comprises a mounting shell fixed on a wall surface and an alarm detachably mounted on the mounting shell. An installation groove is arranged on the inner wall of the mounting shell, and an installation block is fixed on the alarm. The installation block is inserted and matched with the installation groove. A clamping mechanism for clamping and fixing the installation block is arranged on the mounting shell at the installation groove.

[0007] Furthermore, the clamping mechanism comprises a mounting cylinder fixed on the mounting shell, a pressing rod slidingly arranged in the mounting cylinder and a pressing piece arranged between the mounting cylinder and the pressing rod. The mounting cylinder is arranged in communication with the installation groove, and the pressing piece drives the pressing rod to be inserted into the installation groove and abut against the installation block.

[0008] Furthermore, the pressing rod comprises a sliding part and a pressing part. The pressing part is fixed at one end of the sliding part close to the installation groove, and the sliding part is slidingly arranged in the mounting cylinder. The pressing piece is a spring arranged on the sliding part in a sleeved manner. One end of the spring is connected with the sliding part, and the other end is connected with the inner wall of the mounting cylinder. A insertion hole is arranged on the installation block. The pressing part is driven by the spring to pass through the sidewall of the installation groove and be inserted into the insertion hole.

[0009] Furthermore, an inclined guide surface is arranged on the pressing part for the installation block to slide and abut against and be smoothly inserted into the installation groove.

[0010] Further, a limiting groove is arranged on the inner wall of the mounting cylinder and distributed along the sliding direction of the abutting part, and a limiting block is arranged on the abutting part and slidably arranged in the limiting groove.

[0011] Further, a pull ring is arranged at the end of the sliding part away from the abutting part, and the pull ring is located outside the mounting cylinder.

[0012] Further, a scratch-proof coating is arranged on the inclined guide surface.

[0013] Further, the mounting shell comprises a top plate, a back plate and two side plates, the mounting groove is arranged in the middle of the top plate, the back plate is fixedly connected with the wall surface, the alarm is detachably mounted in the cavity formed by the top plate, the back plate and the two side plates, and a notch for taking the alarm is arranged at the lower end of each side plate away from the back plate.

[0014] Further, the alarm comprises an instrument body and a power supply connecting line, the bottom of the instrument body is provided with a fixing cylinder, the power supply connecting line is connected with the instrument body through the fixing cylinder, and a fixing member for preventing the power supply connecting line from loosening is arranged on the fixing cylinder.

[0015] Further, an inclined rod for enhancing the connection stability between the fixing cylinder and the instrument body is arranged on the instrument body on both sides of the fixing cylinder.

[0016] In summary, the present application has at least one of the following beneficial technical effects:

[0017] 1. By arranging the clamping mechanism, the alarm can be conveniently and quickly installed, compared with the installation mode of multiple screws, the installation efficiency can be improved, the alarm can be used as soon as possible to provide a leakage prevention and early warning function, and subsequent disassembly, maintenance and repair are facilitated.

[0018] 2. By arranging the fixing cylinder and the fixing member, accidental loosening of the power supply connecting line can be avoided, continuous and stable operation of the alarm is ensured, and reliable protection for gas safety protection is provided. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0021] Figure 2is a front view of the embodiment of the present application.

[0022] Figure 3 is a structural schematic view of the mounting cylinder, the sliding part, the abutting part and the spring in the embodiment of the present application.

[0023] Figure 4 is a structural schematic view of the inclined rod, the fixing cylinder and the fixing part in the embodiment of the present application.

[0024] Reference signs: 1, mounting groove; 2, mounting block; 3, mounting cylinder; 4, sliding part; 5, abutting part; 6, spring; 7, insertion hole; 8, inclined guide surface; 9, limiting groove; 10, limiting block; 11, pull ring; 12, top plate; 13, inclined rod; 14, side plate; 15, notch; 16, instrument body; 17, power connection line; 18, fixing cylinder; 19, fixing part. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0026] The embodiment of the present application discloses a natural gas leakage prevention early warning device. With reference to Figure 1 and Figure 2 , the natural gas leakage prevention early warning device comprises a mounting shell fixed on a wall surface and an alarm device detachably mounted on the mounting shell. The alarm device comprises an instrument body 16 and a power connection line 17. The mounting shell comprises a top plate 12, a back plate and two side plates 14. The instrument body 16 is detachably mounted in a cavity formed by the top plate 12, the back plate and the two side plates 14. In order to facilitate the taking of the instrument body 16, the lower end of each of the two side plates 14 away from the side of the back plate is provided with a notch 15 for taking the instrument body 16.

[0027] In order to realize the convenient dismounting of the alarm device, with reference to Figure 2 and Figure 3 , the back plate is fixedly connected with the wall surface. The middle part of the top plate 12 is upwardly protruding and provided with a mounting groove 1 with an opening downward. The top center of the instrument body 16 is fixedly provided with a mounting block 2 which is adaptively inserted into the mounting groove 1. The mounting shell is provided with a clamping mechanism for clamping and fixing the mounting block 2 at the mounting groove 1.

[0028] For the setting of the clamping mechanism, with reference to Figure 2 and Figure 3The clamping mechanism comprises a mounting cylinder 3 fixed on the top plate 12, an abutting rod slidingly arranged in the mounting cylinder 3, and an abutting piece arranged between the mounting cylinder 3 and the abutting rod; the mounting cylinder 3 is arranged in communication with the mounting groove 1 and horizontally arranged at one side of the mounting groove 1; the abutting rod comprises a sliding part 4 and an abutting part 5, one end of the sliding part 4 is slidingly arranged in the mounting cylinder 3 and the other end is located outside the mounting cylinder 3, and the abutting part 5 is fixed on one end of the sliding part 4 close to the mounting groove 1; the abutting part 5 can be slidingly inserted into the mounting groove 1 under the driving of the sliding part 4.

[0029] When the mounting block 2 is located in the mounting groove 1, the abutting part 5 can stably abut the mounting block 2 in the mounting groove 1 under the driving of the abutting piece; in other embodiments, the abutting piece is arranged as an electric push rod, a pneumatic cylinder, an abutting screw, etc.; in the embodiment of the present application, the abutting piece is arranged as a spring 6 sleeved on the sliding part 4, one end of the spring 6 is connected with the sliding part 4 and the other end is connected with the inner wall of the mounting cylinder 3; a plug hole 7 is arranged on the mounting block 2, the plug hole 7 is aligned and communicated with the mounting cylinder 3 when the mounting block 2 is inserted into the mounting groove 1, at this time the abutting part 5 is driven by the spring 6 to pass through the side wall of the mounting groove 1 and is inserted into the plug hole 7, so that the mounting block 2 is stably locked in the mounting groove 1. Figure 2 and Figure 3

[0030] In order to further improve the convenience of installing the alarm, referring to Figure 2 and Figure 3 , the lower surface of the abutting part 5 is arranged as an inclined guide surface 8, the inclined guide surface 8 is provided with an anti-scratch coating, and the anti-scratch coating is specifically a Teflon coating. During the process of inserting the mounting block 2 into the mounting groove 1, the top of the mounting block 2 is in contact with the inclined guide surface 8 and pushes the abutting part 5 to slide out of the mounting groove 1, until the plug hole 7 on the mounting block 2 is aligned with the mounting cylinder 3, the abutting part 5 is automatically inserted into the plug hole 7 of the mounting block 2 under the driving of the spring 6, and the quick installation of the alarm is realized.

[0031] In order to ensure that the inclined guide surface 8 is always directed towards and smoothly in contact with the top of the mounting block 2 during the installation of the alarm, referring to Figure 3 , a limiting groove 9 is arranged on the inner wall of the mounting cylinder 3 and distributed along the sliding direction of the abutting part 5, a limiting block 10 is arranged on the abutting part 5 and slidingly arranged in the limiting groove 9, so as to limit the rotation of the abutting part 5 in the mounting cylinder 3, and ensure that the top of the mounting block 2 can smoothly slide on the inclined guide surface 8 during the installation of the alarm, so as to push the abutting part 5 to move away from the mounting groove 1.

[0032] When the alarm needs to be removed, the sliding part 4 only needs to be pulled away from the mounting groove 1, in order to facilitate pulling the sliding part 4, referring to Figure 2 and Figure 3 ​A pull ring 11 is provided at the end of the sliding part 4 away from the pressing part 5. The pull ring 11 is located outside the mounting cylinder 3. The pressing part 5 can be quickly moved out of the mounting groove 1 by the pull ring 11, thereby achieving the purpose of quickly disassembling the alarm.

[0033] To avoid accidentally pulling the power cable 17 off the instrument body 16 during installation and removal of the alarm, refer to... Figure 1 , Figure 2 and Figure 4 A fixing cylinder 18 is provided at the center of the bottom of the instrument body 16. Diagonal rods 13 are provided on both sides of the fixing cylinder 18. One end of the diagonal rod 13 is fixedly connected to the instrument body 16, and the other end is connected to the fixing cylinder 18, so that the fixing cylinder 18 is stably installed at the bottom of the instrument body 16. A power connection cable 17 passes through the fixing cylinder 18 and connects to the instrument body 16. A fixing member 19 is provided on the fixing cylinder 18 to prevent the power connection cable 17 from loosening. In this embodiment, the fixing member 19 is a locking bolt threaded through the side wall of the fixing cylinder 18. By rotating the locking bolt, the end of the locking bolt presses the power connection cable 17 against the inner wall of the fixing cylinder 18, thereby effectively preventing the power connection cable 17 from falling off.

[0034] The implementation principle of a natural gas leak prevention and early warning device according to an embodiment of this application is as follows: When installing the alarm, first rotate the locking bolt to ensure that the power connection cable 17 is stably fixed on the instrument body 16. Then, align the mounting block 2 with the mounting groove 1 and move it into the mounting groove 1. The top of the mounting block 2 contacts the inclined guide surface 8. At this time, the mounting block 2 pushes the pressing part 5 to slide out of the mounting groove 1 until the insertion hole 7 on the mounting block 2 is aligned with the mounting cylinder 3. Then, the pressing part 5 is automatically inserted into the insertion hole 7 of the mounting block 2 under the drive of the spring 6, realizing the rapid installation of the alarm.

[0035] When removing the alarm, the clamping part 5 can be quickly removed from the mounting groove 1 by pulling the ring 11, and then the mounting block 2 can be removed from the mounting groove 1, thus quickly removing the alarm.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A natural gas leakage prevention early warning device, characterized in that, The alarm device comprises a mounting shell fixed on a wall surface and an alarm device detachably mounted on the mounting shell, an installation groove is arranged on the inner wall of the mounting shell, an installation block is fixed on the alarm device, the installation block is inserted and matched with the installation groove, and a clamping mechanism for clamping and fixing the installation block is arranged on the mounting shell at the installation groove.

2. The natural gas leakage-preventing early warning device according to claim 1, characterized in that, The clamping mechanism comprises a mounting cylinder fixed on the mounting shell, a pressing rod slidingly arranged in the mounting cylinder, and a pressing piece arranged between the mounting cylinder and the pressing rod, the mounting cylinder is arranged in communication with the installation groove, and the pressing piece drives the pressing rod to be inserted into the installation groove and abut against the installation block.

3. The natural gas leakage-preventing early warning device according to claim 2, characterized in that, The pressing rod comprises a sliding part and a pressing part, the pressing part is fixed on one end of the sliding part close to the installation groove, the sliding part is slidingly arranged in the mounting cylinder, the pressing piece is a spring arranged on the sliding part, one end of the spring is connected with the sliding part, the other end of the spring is connected with the inner wall of the mounting cylinder, a insertion hole is arranged on the installation block, and the pressing part is driven by the spring to pass through the sidewall of the installation groove and be inserted into the insertion hole.

4. The natural gas leakage-preventing early warning device according to claim 3, characterized in that, An inclined guide surface is arranged on the pressing part, and the installation block slides and abuts against the inclined guide surface and is smoothly inserted into the installation groove.

5. The natural gas leakage-preventing early warning device according to claim 4, characterized in that, A limiting groove is arranged on the inner wall of the mounting cylinder in the sliding direction of the pressing part, a limiting block is arranged on the pressing part and slidingly arranged in the limiting groove.

6. The natural gas leakage-preventing early warning device according to claim 3, characterized in that, A pull ring is arranged on one end of the sliding part away from the pressing part, and the pull ring is located outside the mounting cylinder.

7. The natural gas leakage-preventing early warning device according to claim 4, characterized in that, A scratch-proof coating is arranged on the inclined guide surface.

8. The natural gas leakage pre-warning device according to claim 1, characterized in that, The mounting shell comprises a top plate, a back plate and two side plates, the installation groove is arranged in the middle of the top plate, the back plate is fixedly connected with the wall surface, the alarm device is detachably mounted in the cavity formed by the top plate, the back plate and the two side plates, and a notch for taking the alarm device is arranged on the lower end of each side plate away from the back plate.

9. The natural gas leakage-preventing early warning device according to claim 1, characterized in that, The alarm device comprises an instrument body and a power supply connecting line, a fixing cylinder is arranged on the bottom of the instrument body, the power supply connecting line is connected with the instrument body by penetrating the fixing cylinder, and a fixing piece for preventing the power supply connecting line from loosening is arranged on the fixing cylinder.

10. The natural gas leakage-preventing early warning device according to claim 9, characterized in that, Inclined rods are arranged on both sides of the fixing cylinder of the instrument body for enhancing the connection stability between the fixing cylinder and the instrument body.

Images