Safety valve for air compressor tank

Abstract

An air compressor tank safety valve, including valve body, pressure relief pipe, alarm device, the bottom end of the valve body is fixed with first connecting flange, the valve body is fixed with a positioning ring, the positioning ring is inserted with a movable plug, and the top of the movable plug is fixed with a cover plate covering the positioning ring, the top of the cover plate is fixed with a vertical upward guide rod, the top of the valve body is fixed with a mounting seat, and a positioning plate is fixed below the mounting seat, the top end of the guide rod slides through the middle part of the positioning plate, and a spring is sleeved between the cover plate and the positioning plate of the guide rod, the pressure relief pipe is two L-shaped and symmetrically connected in the valve body, above the positioning ring, the top of the valve body is provided with second connecting flange, the alarm device is installed in the mounting seat, and the switch of the alarm device penetrates the mounting seat and is located at the bottom of the mounting seat. The utility model has the advantages of convenient use, improved dustproof effect and the like.

Description

Technical Field

[0001] This utility model relates to the field of safety valve technology, and in particular to a safety valve for an air compressor storage tank. Background Technology

[0002] A safety valve is a special valve whose opening and closing element is normally closed under the action of external force. When the pressure of the medium in the equipment or pipeline rises above the specified value, it prevents the pressure of the medium in the pipeline or equipment from exceeding the specified value by discharging the medium to the outside of the system. Safety valves belong to the category of automatic valves and are mainly used on boilers, pressure vessels and pipelines to control the pressure to not exceed the specified value, playing an important protective role for personal safety and equipment operation.

[0003] In the existing technology, the safety valve of the air compressor's air tank is directly fixed on the pipeline, which makes disassembly relatively troublesome. In addition, the safety valve is installed externally, and dust can easily enter the safety valve from the pressure relief port, affecting the normal use of the safety valve. Therefore, there is room for improvement. Utility Model Content

[0004] This invention provides a safety valve for an air compressor's air tank to solve the problems mentioned in the background art.

[0005] To address the aforementioned problems, this utility model provides a safety valve for an air compressor's air tank, comprising a valve body, a pressure relief pipe, and an alarm device. A first connecting flange is fixed to the bottom of the valve body. A positioning ring is fixed inside the valve body, and a movable plug is inserted into the positioning ring. A cover plate covering the positioning ring is fixed to the top surface of the movable plug. A vertically upward guide rod is fixed to the top of the cover plate. A mounting base is fixed to the top of the valve body, and a positioning plate is fixed below the mounting base. The top end of the guide rod slides through the middle of the positioning plate, and a spring is sleeved in the guide rod between the cover plate and the positioning plate. The pressure relief pipe consists of two L-shaped sections symmetrically connected within the valve body and located above the positioning ring. A second connecting flange is provided at the top of the valve body. The alarm device is installed in the mounting base, and the switch of the alarm device passes through the mounting base and is located at the bottom of the mounting base.

[0006] Preferably, the top of the guide rod is in contact with the switch of the alarm device.

[0007] Preferably, the alarm device is an alarm light, and a transparent cover covering the alarm device is installed on the top of the valve body via a second connecting flange.

[0008] Preferably, the bottom end of the pressure relief pipe is threaded with a dustproof box, and the dustproof box is equipped with a filter screen.

[0009] The beneficial effects of adopting the above technical solutions are:

[0010] 1. The safety valve operates normally under normal pressure by using a movable plug in conjunction with a spring and a positioning plate. When the pressure is too high, the movable plug will be pushed out of the positioning ring and then the pressure will be released through the pressure relief pipe. When the pressure returns to normal, the spring will squeeze the movable plug back into the positioning ring to ensure normal operation.

[0011] 2. When the pressure is too high, the upward movement of the movable plug will cause the guide rod to move upward. The top of the guide rod will touch the switch of the alarm device, thereby causing the alarm light to flash and prompting the staff to handle the situation.

[0012] 3. The L-shaped design of the pressure relief pipe, combined with the dustproof box with a threaded connection at the bottom, prevents dust from entering the pressure relief valve, avoiding dust affecting the normal operation of the pressure relief valve. It also facilitates the installation and removal of the dustproof box, thus making it easier to clean the filter screen. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the internal three-dimensional structure of this utility model.

[0015] Figure 3 This is a bottom view of the structure of this utility model.

[0016] Wherein: 1-valve body; 11-first connecting flange; 12-positioning ring; 13-moving plug; 14-cover plate; 15-guide rod; 16-mounting seat; 17-positioning plate; 18-spring; 19-second connecting flange; 2-pressure relief pipe; 21-dustproof box; 22-filter screen; 3-alarm device; 31-switch; 32-alarm light; 33-alarm; 34-transparent cover. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-3 In this embodiment, a safety valve for an air compressor storage tank includes a valve body 1, a pressure relief pipe 2, and an alarm device 3. A first connecting flange 11 is fixed to the bottom end of the valve body 1. A positioning ring 12 is fixed inside the valve body 1. A movable plug 13 is inserted into the positioning ring 12, and a cover plate 14 covering the positioning ring 12 is fixed to the top surface of the movable plug 13. A vertically upward guide rod 15 is fixed to the top of the cover plate 14. A mounting base 16 is fixed to the top of the valve body 1, and the valve body 1 is located at the mounting base. A positioning plate 17 is fixedly installed below the 16. The top end of the guide rod 15 slides through the middle of the positioning plate 17. A spring 18 is sleeved in the guide rod 15 between the cover plate 14 and the positioning plate 17. The pressure relief pipe 2 is two L-shaped pipes that are symmetrically connected in the valve body 1 and are located above the positioning ring 12. A second connecting flange 19 is provided on the top of the valve body 1. The alarm device 3 is installed in the mounting base 16, and the switch 31 of the alarm device 3 passes through the mounting base 16 and is located at the bottom of the mounting base 16.

[0021] With the above technical solution, the valve body 1 is installed in the pipeline through the first connecting flange 11. When the pressure in the storage tank is too high, the movable plug 13 will be pushed up from the positioning ring 12, thereby connecting the storage tank with the pressure relief pipe 2 to relieve pressure in the storage tank. When the pressure returns to normal, the movable plug 13 is pushed down by the spring 18 and inserted into the positioning ring 12 to form a seal, ensuring normal use. When the pressure continues to increase, the pressure relief pipe 2 ensures normal pressure relief of the equipment. At the same time, the top of the guide rod 15 abuts against the switch 31 of the alarm device 3, thereby triggering the alarm device 3 to notify the staff to check the equipment and ensure normal use of the equipment. The L-shaped design of the pressure relief pipe 2 can prevent dust from directly entering the valve body 1, improving the dustproof effect.

[0022] Preferably, the top end of the guide rod 15 is in contact with the switch 31 of the alarm device 3.

[0023] The above technical solution ensures that the guide rod 15 can stably contact the switch 31, thereby ensuring stable control of the alarm device 3 during overvoltage.

[0024] Preferably, the alarm device 3 is an alarm light 32 and an alarm 33, and a transparent cover 34 covering the alarm device 3 is installed on the top of the valve body 1 through the second connecting flange 19.

[0025] Through the above technical solution, the alarm light 32, together with the alarm 33, emits flashing light and sound alarms to remind staff. The transparent cover 34 facilitates observation of the alarm light 32 in the alarm device 3 and also provides dust protection.

[0026] Preferably, the bottom end of the pressure relief pipe 2 is threadedly connected to a dustproof box 21, and a filter screen 22 is provided inside the dustproof box 21.

[0027] Through the above technical solution, the dust box 21 is threadedly connected to the bottom end of the pressure relief pipe 2, which facilitates installation and removal, thereby facilitating the cleaning of the dust filter 22.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit the technical solutions described in this utility model. Therefore, although this specification has described this utility model in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model, and all technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model; technologies not described in detail in this utility model are implemented using existing technologies.

Claims

1. A safety valve for an air compressor's air tank, comprising a valve body, a pressure relief pipe, and an alarm device, characterized in that: The bottom end of the valve body is fixed with a first connecting flange. A positioning ring is fixed inside the valve body. A movable plug is inserted into the positioning ring. A cover plate covering the positioning ring is fixed on the top surface of the movable plug. A vertically upward guide rod is fixed on the top of the cover plate. A mounting seat is fixed on the top of the valve body. A positioning plate is fixed below the mounting seat. The top end of the guide rod slides through the middle of the positioning plate. A spring is sleeved in the guide rod between the cover plate and the positioning plate. The pressure relief pipe is two L-shaped pipes that are symmetrically connected in the valve body and located above the positioning ring. The top of the valve body is provided with a second connecting flange. The alarm device is installed in the mounting seat. The switch of the alarm device passes through the mounting seat and is located at the bottom of the mounting seat.

2. The air compressor storage tank safety valve according to claim 1, characterized in that: The top of the guide rod comes into contact with the switch of the alarm device.

3. The air compressor storage tank safety valve according to claim 1, characterized in that: The alarm device is an alarm light, and a transparent cover covering the alarm device is installed on the top of the valve body via a second connecting flange.

4. The air compressor receiver tank safety valve according to claim 1, characterized in that: The bottom end of the pressure relief pipe is threaded with a dustproof box, and the dustproof box is equipped with a filter screen.

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