Air inlet electromagnetic valve

Abstract

The utility model relates to an air inlet electromagnetic valve applied to the technical field of electromagnetic valves, which realizes that after a pipeline is in threaded connection with an air inlet and an air outlet, a capsule filled with expansion foam and an activated carbon plate are sequentially sleeved on the surface of the pipeline, and at the moment, two semicircular rings are clamped at the joint of the pipeline and the air inlet and are fixed through bolts. At the moment, the outer side wall of the capsule is adhered to the inner wall of the gas collecting hood through glue, when the electromagnetic valve body leaks, gas flows out of a gap and is sprayed on the capsule to cause the capsule to be broken, internal expansion foam expands after being in contact with the air, and therefore the leakage position of the electromagnetic valve body is blocked for secondary transient sealing; at the moment of gas leakage, the pressure sensor detects that the air pressure value in the gas collecting hood is changed, the alarm is automatically started to remind personnel to come to overhaul, the electromagnetic valve body is automatically closed while the alarm sounds, the leaked gas is collected in the gas collecting hood, and the gas can be purified through the activated carbon plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of inlet electromagnetic valve, in particular to a kind of inlet electromagnetic valve applied to electromagnetic valve technical field. BACKGROUND

[0002] Inlet electromagnetic valve is widely used in many fields, such as automobile engine inlet system, industrial automation gas control, etc. It is mainly used to accurately control the amount of gas entering and the time of entering to meet the needs of different working conditions.

[0003] Chinese patent CN218669734U specification discloses an inlet valve with electromagnetic valve gas guide, the upper valve body and the lower valve body are detachably sealed, the electromagnetic valve and the switch valve are arranged on the side of the upper valve body, the first gas port is arranged on the bottom of the upper valve body, the second gas port is arranged on the side, and the first gas port and the second gas port are in communication. The utility model has the advantages of electromagnetic valve gas guide, multi-stage pressure regulation, large caliber and large flow.

[0004] During long-term use of the electromagnetic valve for kitchen gas, the sealing performance of the electromagnetic valve is prone to decline, leading to gas leakage and affecting the normal operation and efficiency of the system. Utility model content

[0005] In view of the above prior art, the technical problem to be solved by the utility model is that during long-term use of the electromagnetic valve for kitchen gas, the sealing performance of the electromagnetic valve is prone to decline, leading to gas leakage and affecting the normal operation and efficiency of the system.

[0006] To solve the above problems, the utility model provides an inlet electromagnetic valve, which comprises an electromagnetic valve body with an air inlet and an air outlet, a gas collecting cover is detachably connected between the air inlet and the pipeline, the gas collecting cover is composed of two symmetrical half-rings, mounting blocks are symmetrically and fixedly connected to the side walls of the two half-rings, the two mounting blocks are coincident and connected by bolts, a partition is fixedly connected to the inner wall of the gas collecting cover near the air inlet, a capsule is attached to one end of the partition near the air inlet, the capsule is filled with expanded foam, an activated carbon plate is detachably connected to the inner wall of the gas collecting cover away from the partition, a micro pressure sensor is fixedly connected to the inner wall of the gas collecting cover, and an alarm is fixedly connected to the outer wall of the gas collecting cover and electrically connected to the micro pressure sensor.

[0007] In the above inlet electromagnetic valve, a gas collecting cover is arranged on the surface of the electromagnetic valve body and the pipeline connection, so that when the electromagnetic valve body leaks, the gas can be collected, and the leakage can be timely blocked by the expanded foam, and the alarm is triggered to remind personnel, and during the personnel's rush to repair, the leaked gas can be purified by the activated carbon plate, avoiding harm to the human body caused by harmful gas when the gas collecting cover is opened.

[0008] As a further improvement of the present application, two gas outlet holes are formed on the end of the gas collecting cover away from the gas inlet, and sealing plugs are threadedly connected in the gas outlet holes.

[0009] As a further improvement of the present application, a fixing plate is arranged outside the activated carbon plate, and a detachable cover is detachably connected to the side end of the fixing plate.

[0010] As a further improvement of the present application, a magnetic sheet is fixedly connected to the side wall of the detachable cover, the contact surface between the inner wall of the fixing plate and the outer wall of the detachable cover is made of magnetic material, and the detachable cover is attracted to the inner wall of the fixing plate by the magnetic sheet.

[0011] As a further improvement of the present application, two groups of clamping blocks are symmetrically embedded in the outer wall of the fixing plate, and the clamping blocks are connected to the outer wall of the fixing plate by compression springs, and the inner wall of the gas collecting cover is provided with clamping grooves corresponding to the clamping blocks, and the clamping blocks are clamped in the clamping grooves.

[0012] As a further improvement of the present application, sealing rings are fixedly connected to the inner wall of the gas collecting cover at both ends.

[0013] As a further improvement of the present application, a controller is fixedly connected to the gas collecting cover, which controls the solenoid valve body, the micro pressure sensor and the alarm.

[0014] As a further improvement of the present application, two gas outlet holes are formed on the end of the gas collecting cover away from the gas inlet, and sealing plugs are threadedly connected in the gas outlet holes. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The solenoid valve shaft view of the first embodiment of the present application;

[0016] Figure 2The schematic diagram of the electromagnetic valve and the pipeline connection of the first embodiment of the application;

[0017] Figure 3 The schematic diagram of the gas collecting cover structure of the first embodiment of the application;

[0018] Figure 4 The schematic diagram of the internal structure of the gas collecting cover of the second embodiment of the application;

[0019] Figure 5 The second embodiment of the application Figure 4 The enlarged view of A in the second embodiment of the application;

[0020] Figure 6 The schematic diagram of the installation of the activated carbon plate of the second embodiment of the application;

[0021] Figure 7 The schematic diagram of the installation of the activated carbon plate and the gas collecting cover of the second embodiment of the application.

[0022] Explanation of the reference numerals in the drawing:

[0023] 1, electromagnetic valve body, 2, air inlet; 3, air outlet; 4, gas collecting cover; 5, mounting block; 6, alarm; 7, air outlet hole; 8, capsule; 9, expanded foam; 10, partition; 11, activated carbon plate; 12, sealing plug; 13, fixing plate; 14, clamping groove; 15, dismounting cover; 16, clamping block; 17, magnetic sheet; 18, bolt; 19, pipeline. DETAILED DESCRIPTION

[0024] The two embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0025] The first embodiment:

[0026] Figures 1-3 An air inlet electromagnetic valve is shown, which comprises an electromagnetic valve body 1 with an air inlet 2 and an air outlet 3, a gas collecting cover 4 which is detachably connected between the air inlet 2 and a pipeline 19, and is composed of two semicircular rings which are symmetrically spliced, and each of the two semicircular rings is symmetrically and fixedly connected with a mounting block 5 on the side wall close to each other, and the two mounting blocks 5 which coincide with each other are connected by a bolt 18, a partition 10 is fixedly connected to the inner wall of the gas collecting cover 4 close to the air inlet 2, a capsule 8 is adhered to the end of the partition 10 close to the air inlet 2, the capsule 8 is filled with expanded foam 9, an activated carbon plate 11 is detachably connected to the inner wall of the gas collecting cover 4 away from the partition 10, a micro pressure sensor is fixedly connected to the inner wall of the gas collecting cover 4, an alarm 6 is fixedly connected to the outer wall of the gas collecting cover 4 and is electrically connected with the micro pressure sensor, and a controller for controlling the electromagnetic valve body 1, the micro pressure sensor and the alarm 6 is fixedly connected to the gas collecting cover 4.

[0027] Working principle: after the pipeline 19 is threadedly connected with the gas inlet 2 and the gas outlet 3, the capsule 8 filled with the expanded foam 9 and the activated carbon plate 11 are sequentially sleeved on the surface of the pipeline 19, at this time, the two semicircular rings are clamped at the joint of the pipeline 19 and the gas inlet 2, and are fixed through the bolts 18, at this time, the outer side wall of the capsule 8 is adhered to the inner wall of the gas collecting cover 4 through the glue, which is located between the baffle 10 and the gas collecting cover 4 close to the gas inlet 2, at this time, the gas collecting cover 4 covers the surface of the pipeline 19 and the gas inlet 2, and the joint is sealed through the sealing ring, when the electromagnetic valve body 1 leaks, the gas flows out from the gap and sprays on the capsule 8, when some capsules 8 made of poly anhydride high molecular materials contact with alkaline gas, chemical reaction or physical action occurs, so that the material performance changes, the capsule 8 is easy to break, and after the capsule 8 breaks, the expanded foam 9 in the closed pore structure contacts the air and expands, so as to block the leakage of the electromagnetic valve body 1 and perform secondary temporary sealing, at the same time, in the moment of gas leakage, the pressure sensor detects that the air pressure value in the gas collecting cover 4 changes, transmits the signal to the controller, automatically opens the alarm 6 to remind personnel to come for repair, and at the same time when the alarm 6 rings, the electromagnetic valve body 1 is automatically closed through the controller, after the gas leaks out, the gas is collected in the gas collecting cover 4, and the gas can be purified through the activated carbon plate 11;

[0028] By providing the gas collecting cover 4 on the surface of the joint of the electromagnetic valve body 1 and the pipeline 19, when the electromagnetic valve body 1 leaks, the gas can be collected, the leakage can be timely blocked through the expanded foam 9, the alarm 6 is triggered to remind personnel, and during the process of personnel coming for repair, the leaked gas can be purified through the activated carbon plate 11, so that when the gas collecting cover 4 is opened, the harmful gas does not cause harm to the human body.

[0029] Second embodiment:

[0030] Figures 4-7 It is shown that two gas outlet holes 7 are arranged at the end of the gas collecting cover 4 away from the gas inlet 2, the sealing plugs 12 are threadedly connected in the gas outlet holes 7, the fixed plate 13 is sleeved on the activated carbon plate 11, the dismounting cover 15 is detachably connected to the side end of the fixed plate 13, the magnetic sheet 17 is fixedly connected to the side wall of the dismounting cover 15, the contact surface between the inner wall of the fixed plate 13 and the outer wall of the dismounting cover 15 is of magnetic material, the dismounting cover 15 is attracted to the inner wall of the fixed plate 13 through the magnetic sheet 17, two groups of clamping blocks 16 are symmetrically embedded in the outer wall of the fixed plate 13 and are connected through compression springs between the clamping blocks 16 and the outer wall of the fixed plate, the clamping blocks 16 correspondingly have the clamping grooves 14 in the inner wall of the gas collecting cover 4, the clamping blocks 16 are clamped with the clamping grooves 14, and the sealing rings are fixedly connected to the inner wall of the gas collecting cover 4 at both ends and are attached to the surface of the pipeline 19.

[0031] Working principle: when the electromagnetic valve body 1 leaks, even if the gas is adsorbed and purified by the activated carbon plate 11, harmful gas still remains, at this time, the sealing plug 12 can be opened before the gas collecting cover 4 is opened, the gas remaining in the gas collecting cover 4 is discharged, after the discharge, the gas collecting cover 4 is opened, the inside of the electromagnetic valve body 1 is maintained and treated, at the same time, the fixed plate 13 with the activated carbon plate 11 can be disassembled from the gas collecting cover 4 for replacement, the dismounting cover 15 is taken out from the inner wall of the fixed plate 13, the inside of the activated carbon plate 11 is replaced, then the activated carbon plate 11 is clamped, the magnetic sheet 17 and the inner wall of the gas collecting cover 4 are attracted and fixed, when the gas collecting cover 4 is installed again, the clamping groove 14 and the corresponding clamping block 16 are clamped, the fixed plate 13 is limited.

[0032] Through the detachable design of the activated carbon plate 11, the activated carbon plate 11 can be quickly replaced when the electromagnetic valve body 1 is maintained.

[0033] In combination with the actual demand, the above-mentioned embodiments of the present application are not limited to the scope, various changes made within the knowledge of the person skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. An air intake solenoid valve comprising a solenoid valve body (1) with an air intake port (2) and an air outlet port (3), characterized in that: The detachable connection between the air inlet (2) and the pipeline (19) has a gas collecting cover (4), and the gas collecting cover (4) is composed of two half circular rings which are symmetrically spliced, and the two half circular rings are symmetrically and fixedly connected with mounting blocks (5) on the side walls close to each other, and the two mounting blocks (5) coinciding with each other are connected by bolts (18), the inner wall of the gas collecting cover (4) is fixedly connected with a partition plate (10) close to the air inlet (2), the partition plate (10) is adhesively connected with a capsule (8) close to the air inlet (2), the capsule (8) is filled with an expanded foam (9), the inner wall of the gas collecting cover (4) is detachably connected with an activated carbon plate (11) away from the partition plate (10), the inner wall of the gas collecting cover (4) is fixedly connected with a micro pressure sensor, the outer wall of the gas collecting cover (4) is fixedly connected with an alarm (6), and the alarm (6) is electrically connected with the micro pressure sensor.

2. The air intake solenoid valve according to claim 1, wherein: The gas collecting cover (4) is provided with two air outlet holes (7) away from the air inlet (2), and the air outlet holes (7) are threadedly connected with sealing plugs (12).

3. The inlet electromagnetic valve according to claim 2, characterized in that: The activated carbon plate (11) is provided with a fixed plate (13), and the side end of the fixed plate (13) is detachably connected with a dismounting cover (15).

4. The inlet electromagnetic valve according to claim 3, characterized in that: The side wall of the dismounting cover (15) is fixedly connected with a magnetic sheet (17), the inner wall of the fixed plate (13) and the outer wall of the dismounting cover (15) are made of magnetic material, and the dismounting cover (15) is attracted to the inner wall of the fixed plate (13) by the magnetic sheet (17).

5. The inlet electromagnetic valve according to claim 4, characterized in that: The outer wall of the fixed plate (13) is symmetrically embedded with two groups of clamping blocks (16), and the clamping blocks (16) and the outer wall of the fixed plate are connected by compression springs, the inner wall of the gas collecting cover (4) is provided with clamping grooves (14) corresponding to the clamping blocks (16), and the clamping blocks (16) and the clamping grooves (14) are clamped.

6. The inlet electromagnetic valve according to claim 1, characterized in that: The inner wall of the gas collecting cover (4) is fixedly connected with a sealing ring which is attached to the surface of the pipeline (19).

7. The inlet electromagnetic valve according to claim 1, characterized in that: The controller of the control electromagnetic valve body (1), the micro pressure sensor and the alarm (6) is fixedly connected on the gas collecting cover (4).

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