Probe protection mechanism for combustible gas alarm

Abstract

The utility model belongs to the field of combustible gas alarm, concretely relates to a probe protection mechanism for combustible gas alarm, including alarm and its front installation display screen, the bottom of alarm is installed with detection end seat, the bottom of detection end seat is installed with the air inlet end seat of opening air hole, the separation mechanism includes the suspension plate of setting in the detection end seat outer periphery, install the air ring seat of setting in the air inlet end seat outer periphery on the suspension plate, when ring seat explores into the air ring seat inner chamber, the separation of air inlet end seat and air ring seat is carried out, and detection channel closed detection function is suspended, and air inlet end seat and suction end seat combination is exhaust passage, and the gas and impurity remaining around air inlet end seat are exhausted by the suction of suction end seat, complete cleaning once in every time of air inlet end seat separation protection, effectively solve the problem that air inlet end seat appears the blockage of long -time exposure in air, promote its detection service life.

Description

Technical Field

[0001] This utility model relates to the field of combustible gas alarms, specifically to a probe protection mechanism for combustible gas alarms. Background Technology

[0002] A combustible gas detector is a device used to detect the concentration of combustible gases in the air. It is primarily used to prevent fires and explosions caused by combustible gas leaks. It utilizes the principle that electrical conductivity changes with the surrounding gas composition under certain temperature conditions. For example, when encountering combustible gases such as methane and ethane, the conductivity of the semiconductor material changes, thus detecting the gas concentration.

[0003] When a combustible gas alarm is in use, the gas it draws in mixes with dust and accumulates inside and outside the air inlet seat. Over time, this accumulation can cause blockage of the air inlet seat, thus affecting the normal operation of the alarm. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a probe protection mechanism for a combustible gas alarm, which features separation and protection of the air inlet end seat and air extraction and cleaning of the air inlet end seat.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, this utility model provides a probe protection mechanism for a combustible gas alarm, including an alarm and a display screen installed in front of it. A detection end seat is installed at the bottom of the alarm, and an air inlet end seat with an opening for air holes is installed at the bottom of the detection end seat.

[0008] The separation mechanism includes a suspension plate disposed on the outer periphery of the detection end seat, and a vent ring seat fitted on the suspension plate and sleeved on the outer periphery of the air inlet end seat, and the vent ring seat having several through holes.

[0009] The distance adjustment mechanism includes a cylinder installed behind the alarm, a piston rod installed at the output end of the cylinder, and the other end of the piston rod connected to the bracket via a push plate;

[0010] The protective mechanism includes a support plate mounted on the bracket, a ring seat mounted on the support plate, one end of the ring seat extending into the area clamped by the air inlet seat and the ventilated ring seat, and a through-hole suction seat built into it, the suction seat being connected to the air inlet of the suction device, and an exhaust pipe being installed at the exhaust end of the suction device.

[0011] Preferably, the density of air holes on the air inlet end seat is higher than the density of through holes on the vent ring seat, and the diameter of the air holes is smaller than that of the through holes.

[0012] Preferably, a raised convex ring is provided between the vent ring seat and the air inlet end seat, and the convex ring is adapted to the specifications of the concave ring provided on the ring seat.

[0013] Preferably, after the ring seat is inserted into the inner cavity of the ventilated ring seat, the detection channel of the air inlet end seat and the ventilated ring seat is closed.

[0014] Preferably, after the ring seat is inserted into the inner cavity of the ventilated ring seat, the air inlet end seat and the air extraction end seat are combined to form an exhaust channel.

[0015] Preferably, the cylinder is mounted behind the alarm via a bracket.

[0016] The above-mentioned technical solution of this utility model has the following beneficial technical effects: A movable protective mechanism is provided. When the ring seat is inserted into the inner cavity of the ventilated ring seat, the air inlet seat and the ventilated ring seat are separated, the detection channel is closed, and the detection function is suspended. The air inlet seat and the air extraction seat are combined to form an exhaust channel. The air extraction device uses the air extraction seat to exhaust the residual gas and impurities around the air inlet seat. A cleaning is completed once during each time the air inlet seat is separated and protected, effectively solving the problem of blockage caused by prolonged exposure of the air inlet seat to air, and improving its detection service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the separation structure of the protective mechanism of this utility model.

[0020] Figure label:

[0021] 11. Alarm; 12. Display screen; 13. Detector end seat; 14. Inlet end seat; 21. Suspension plate; 22. Vent ring seat; 23. Convex ring; 31. Cylinder; 32. Piston rod; 33. Push plate; 34. Bracket; 41. Support plate; 42. Ring seat; 43. Concave ring; 44. Extraction end seat; 45. Extraction device; 46. Exhaust pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] like Figure 1-3 As shown, the present invention proposes a probe protection mechanism for a combustible gas alarm, including an alarm 11 and a display screen 12 installed in front of it. A detection end seat 13 is installed at the bottom of the alarm 11, and an air inlet end seat 14 with an air hole is installed at the bottom of the detection end seat 13.

[0024] The separation mechanism includes a suspension plate 21 disposed on the outer periphery of the detection end seat 13, and a vent ring seat 22 sleeved on the outer periphery of the air inlet end seat 14, and a number of through holes are provided on the vent ring seat 22.

[0025] The distance adjustment mechanism includes a cylinder 31 installed behind the alarm 11. A piston rod 32 is installed at the output end of the cylinder 31, and the other end of the piston rod 32 is connected to the bracket 34 through a push plate 33.

[0026] The protective mechanism includes a support plate 41 mounted on a bracket 34, a ring seat 42 mounted on the support plate 41, one end of the ring seat 42 extending into the area between the air inlet end seat 14 and the vent ring seat 22, and a through-hole suction end seat 44 built in, the suction end seat 44 being connected to the air inlet end of the suction device 45, and an exhaust pipe 46 being installed at the exhaust end of the suction device 45.

[0027] It should be noted that the density of air holes on the air inlet seat 14 is higher than the density of through holes on the air permeable ring seat 22, and the diameter of the air holes is smaller than that of the through holes. When detecting combustible gases, the gas inhaled must first pass through the through holes at the air permeable ring seat 22 for preliminary dust filtration, and then pass through the air holes on the air inlet seat 14 for secondary filtration, which effectively reduces the dust content of the inhaled gas and reduces the impact of the environment on the air inlet seat 14.

[0028] In this embodiment, a movable protective mechanism is provided. The piston rod 32 connected to the cylinder 31 drives the push plate 33 to move up and down, which in turn moves the support plate 41 connected to the bracket 34. When the ring seat 42 enters the inner cavity of the vent ring seat 22, the air inlet end seat 14 and the vent ring seat 22 are separated, and the detection channel of the air inlet end seat 14 and the vent ring seat 22 is closed. At this time, the detection function is suspended. The air inlet end seat 14 and the air extraction end seat 44 are combined to form an exhaust channel. The air extraction device 45 exhausts the residual gas and impurities around the air inlet end seat 14 through the suction of the air extraction end seat 44. The cleaning is completed once during each separation and protection of the air inlet end seat 14, which effectively solves the problem of blockage caused by the air inlet end seat 14 being exposed to the air for a long time and improves its detection service life.

[0029] It is understandable that a raised convex ring 23 is provided between the vent ring seat 22 and the air inlet end seat 14. The convex ring 23 is compatible with the specifications of the concave ring 43 opened on the ring seat 42. The two are inserted to act as a sealing element, which helps to separate the air inlet end seat 14 and the vent ring seat 22.

[0030] To facilitate the installation of cylinder 31, cylinder 31 is further mounted behind alarm 11 via a bracket.

[0031] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A probe protection mechanism for a combustible gas alarm, characterized in that, Includes an alarm (11) and a display screen (12) mounted in front of it. The bottom of the alarm (11) is equipped with a detection end plate (13), and the bottom of the detection end plate (13) is equipped with an air inlet end plate (14) with an air hole. The separation mechanism includes a suspension plate (21) disposed on the outer periphery of the detection end seat (13), and a venting ring seat (22) sleeved on the outer periphery of the air inlet end seat (14) is installed on the suspension plate (21), and a plurality of through holes are opened on the venting ring seat (22). The distance adjustment mechanism includes a cylinder (31) installed behind the alarm (11), and a piston rod (32) is installed at the output end of the cylinder (31). The other end of the piston rod (32) is connected to the bracket (34) through a push plate (33). The protective mechanism includes a support plate (41) mounted on the bracket (34), a ring seat (42) mounted on the support plate (41), one end of the ring seat (42) extending into the area between the air inlet end seat (14) and the ventilated ring seat (22), and a through-hole suction end seat (44) built in. The suction end seat (44) is connected to the air inlet end of the suction device (45), and an exhaust pipe (46) is installed at the exhaust end of the suction device (45).

2. The probe protection mechanism for a combustible gas alarm according to claim 1, characterized in that, The density of air holes on the air inlet end seat (14) is higher than the density of through holes on the air permeable ring seat (22), and the diameter of the air holes is smaller than that of the through holes.

3. The probe protection mechanism for a combustible gas alarm according to claim 1, characterized in that, A raised convex ring (23) is provided between the vent ring seat (22) and the air inlet end seat (14), and the convex ring (23) is compatible with the specifications of the concave ring (43) opened on the ring seat (42).

4. The probe protection mechanism for a combustible gas alarm according to claim 1, characterized in that, After the ring seat (42) is inserted into the inner cavity of the ventilated ring seat (22), the detection channels of the air inlet end seat (14) and the ventilated ring seat (22) are closed.

5. The probe protection mechanism for a combustible gas alarm according to claim 1, characterized in that, After the ring seat (42) is inserted into the inner cavity of the ventilated ring seat (22), the air inlet end seat (14) and the air extraction end seat (44) are combined to form an exhaust channel.

6. The probe protection mechanism for a combustible gas alarm according to claim 1, characterized in that, The cylinder (31) is mounted behind the alarm (11) via a bracket.

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