Automatic gas cut-off device

Abstract

The utility model discloses an automatic air cut-off device which comprises a relay, a PLC control device is arranged on one side of the relay, an electromagnetic valve is arranged on one side of the PLC control device, the relay and the electromagnetic valve are both in telecommunication connection with the PLC control device, and the two ends of the electromagnetic valve are both connected with an air compressor air pipe. Preferably, the two sides of the lower end face of the PLC control device are each fixedly provided with a support shaft. According to the utility model, when leakage occurs at a certain place on an air pipe of the air compressor or the air blowing equipment, the air blowing equipment cannot operate normally, and an operation signal of the air blowing equipment is interrupted for minutes, the relay arranged on the air blowing equipment can send a signal to the PLC control device, and when the PLC control device receives the signal transmitted by the relay, the PLC control device can control the air blowing equipment to operate normally. According to the technical scheme, the variable frequency of the air compressor can be increased, so that the effects of saving energy and reducing cost are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas cutting technology field, concretely is an automatic gas cutting device. BACKGROUND

[0002] Air compressor is a kind of equipment that air in atmosphere is compressed into higher pressure gas, is widely used in industrial production, construction, mine, medical treatment and other fields;

[0003] Air compressor is mainly by compressor: core component, for compressing air, there is piston type, screw rod type and centrifugal type, driving device: provide power, commonly seen is motor, by electric energy conversion into mechanical energy to drive compressor operation, cooling device: reduce compressor temperature, usually adopt water cooling or air cooling mode, gas tank: store compressed air, balance gas supply and gas difference, smooth supply gas, avoid pressure fluctuation and control system: monitor and control air compressor operating state, including pressure switch, temperature sensor and automatic control valve etc.

[0004] But when using this air compressor, if the pipeline connected therewith or the gas blowing equipment connected therewith has leakage, the gas source inside the air compressor will be continuously consumed, thereby leading to energy waste;Therefore, it does not meet the existing demand, and we propose an automatic gas cutting device. UTILITY MODEL CONTENT

[0005] The utility model aims at providing an automatic gas cutting device to solve the problem of energy waste caused by continuous consumption of gas source inside the air compressor when using the air compressor.

[0006] To achieve the above object, the utility model provides the following technical scheme: an automatic gas cutting device, including relay, the side of relay is equipped with PLC control device, the side of PLC control device is equipped with electromagnetic valve, and the relay and electromagnetic valve are electrically connected between PLC control device, and both ends of electromagnetic valve are connected with air compressor air pipe.

[0007] Preferably, the both sides of the lower end surface of the PLC control device are fixedly installed with a support, the inside of the first support from left to right is fixedly installed with an adjusting motor, the output shaft of the adjusting motor is connected with adjusting shaft through coupling, the outer surface of the adjusting shaft is fixedly sleeved with metal shell, the upper end surface of the metal shell is fixedly installed with strip fan, and the strip fan is located directly below the PLC control device.

[0008] Preferably, the lower side of the strip fan is equipped with the air vent in the metal shell, and the air vent extends to the outer surface of the metal shell.

[0009] Preferably, the middle position of the lower end surface of the metal shell is fixedly provided with a heating plate, a heating cotton fixed to the lower end surface of the metal shell is arranged below the heating plate, and the lower end surface of the heating cotton is a plane.

[0010] Preferably, the rear end surface of the second support from left to right is fixedly provided with an environmental temperature sensor, and the environmental temperature sensor is electrically connected with the adjusting motor.

[0011] Preferably, the outer surface of the rear end of the adjusting rotating shaft is provided with a positioning groove on each side, the inner part of each positioning groove is provided with a positioning block, one side of the outer surface of the positioning block is connected with a positioning spring, and the two ends of the positioning block are inclined surfaces.

[0012] Preferably, the front of the adjusting motor is provided with a protective cover plate located on the outer surface of the support, and the support and the protective cover plate are fixed through screws.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、the utility model discloses a kind of air compressor machine, including air compressor machine, electromagnetic valve, relay, PLC control device, air compressor machine air pipe, blowing equipment, environmental temperature sensor, adjusting motor and strip fan, the electromagnetic valve is installed on the air compressor machine air pipe connected between air compressor machine, the relay is installed on the blowing equipment connected between air compressor machine air pipe, the environmental temperature sensor is installed on the support, the adjusting motor is installed on the support, and the strip fan is connected to the adjusting motor.

[0015] 2、the utility model discloses a kind of air compressor machine, including air compressor machine, electromagnetic valve, relay, PLC control device, air compressor machine air pipe, blowing equipment, environmental temperature sensor, adjusting motor and strip fan, the electromagnetic valve is installed on the air compressor machine air pipe connected between air compressor machine, the relay is installed on the blowing equipment connected between air compressor machine air pipe, the environmental temperature sensor is installed on the support, the adjusting motor is installed on the support, and the strip fan is connected to the adjusting motor. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The utility model discloses a whole structure schematic view;

[0017] Figure 2 It is the internal structure front view of PLC control device in the utility model;

[0018] Figure 3 It is the internal structure side view of PLC control device in the utility model;

[0019] Figure 4 It is the utility model Figure 2 The internal structure side view of A place in the utility model.

[0020] In the drawing: 1, relay; 2, PLC control device; 3, electromagnetic valve; 4, air compressor wind pipe; 5, metal shell; 6, adjusting motor; 7, adjusting pivot; 8, strip fan; 9, air vent; 10, support; 11, positioning groove; 12, positioning block; 13, positioning spring; 14, inclined plane; 15, heating plate; 16, heating cotton; 17, ambient temperature sensor. Specific implementation

[0021] The technical scheme 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, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] The relay 1 (model number MY2NJ), PLC control device 2 (model number ZS-D) and electromagnetic valve 3 (model number 4V210) mentioned in the utility model can be obtained from market purchase or private customization.

[0023] Please refer to Figures 1 to 4 The utility model provides an embodiment: an automatic gas cutting device, including relay 1, one side of relay 1 is equipped with PLC control device 2, one side of PLC control device 2 is equipped with electromagnetic valve 3, and relay 1 and electromagnetic valve 3 are electrically connected between PLC control device 2, and both ends of electromagnetic valve 3 are connected with air compressor wind pipe 4, when using air compressor, install electromagnetic valve 3 on the air compressor wind pipe 4 connected between air compressor, then install relay 1 on the blowing equipment needing air compressor wind pipe 4 to supply gas source between air compressor wind pipe 4, when the leakage occurs somewhere on air compressor wind pipe 4 or blowing equipment, thereby leading to blowing equipment unable to normally run, the operating signal of itself has been interrupted for 5 minutes, and the relay 1 installed on blowing equipment will signal to PLC control device 2, when PLC control device 2 receives the signal transmitted by relay 1, will close electromagnetic valve 3, to this to block the transmission of air compressor gas, through the above technical scheme, the frequency of air compressor can be increased to reach the effect of energy saving and cost reduction.

[0024] The lower end surface of the PLC control device 2 is fixedly provided with a support 10 on both sides, and the first support 10 from left to right is fixedly provided with an adjusting motor 6 inside, the output shaft of the adjusting motor 6 is connected with an adjusting shaft 7 through a shaft coupling, the outer surface of the adjusting shaft 7 is fixedly provided with a metal shell 5, the upper end surface of the metal shell 5 is fixedly provided with a strip-shaped fan 8, and the strip-shaped fan 8 is located directly below the PLC control device 2; a ventilation opening 9 located inside the metal shell 5 is arranged below the strip-shaped fan 8, and the ventilation opening 9 extends to the outer surface of the metal shell 5; the rear end surface of the second support 10 from left to right is fixedly provided with an ambient temperature sensor 17, and the ambient temperature sensor 17 is electrically connected with the adjusting motor 6; the ambient temperature sensor 17 can monitor the temperature around the PLC control device 2 in real time, when the temperature around the PLC control device 2 is too high, the strip-shaped fan 8 will be started, and when the strip-shaped fan 8 is started, the outside air will be sucked through the ventilation opening 9 to generate cooling air, and the cooling air can cool the PLC control device 2 to prevent it from being damaged by high temperature.

[0025] The middle position of the lower end surface of the metal shell 5 is fixedly provided with a heating plate 15, and the lower end surface of the heating plate 15 is fixedly provided with a heating cotton 16 below the lower end surface of the metal shell 5, and the lower end surface of the heating cotton 16 is a plane; when the temperature around the PLC control device 2 is too low, the adjusting motor 6 will be started, the adjusting motor 6 can drive the adjusting shaft 7 connected thereto to rotate, when the adjusting shaft 7 rotates, the metal shell 5 fixedly provided on the outer surface of the adjusting shaft 7 will rotate together, when the metal shell 5 rotates one hundred and eighty degrees, the upper and lower surfaces of the metal shell 5 will change, and in the process of rotating the metal shell 5, the heating cotton 16 fixedly provided on the lower end surface of the metal shell 5 will contact the lower end surface of the PLC control device 2, and the elasticity of the heating cotton 16 itself can ensure that the metal shell 5 will not be stuck due to the contact between the two, when the metal shell 5 rotates one hundred and eighty degrees, the heating cotton 16 originally fixedly provided on the lower end surface of the metal shell 5 will be attached to the lower end surface of the PLC control device 2, and then the heating plate 15 can heat the heating cotton 16 and the PLC control device 2 in contact with the heating cotton 16 at this time, and the above technical scheme can prevent the PLC control device 2 from being damaged by low temperature outside, and the above technical scheme can cool or heat the PLC control device 2 according to the temperature around the PLC control device 2, so as to ensure that the PLC control device 2 has a suitable operating temperature, thereby reducing the possibility of failure of the PLC control device 2 due to temperature.

[0026] The outer surface of the rear end of the adjusting shaft 7 is provided with positioning grooves 11 on both sides, the inner part of each positioning groove 11 is provided with a positioning block 12, one side of the outer surface of the positioning block 12 is connected with a positioning spring 13, and the two ends of the positioning block 12 are inclined surfaces 14; when the adjusting shaft 7 rotates, the positioning block 12 clamped in the positioning groove 11 on the outer surface of the adjusting shaft 7 will be pushed out of the inner part of the positioning groove 11 due to the inclined surface 14 on its outer surface, and the positioning groove 11 will squeeze the positioning spring 13 connected thereto when it is pushed outward, after the adjusting shaft 7 rotates 180 degrees, the two positioning blocks 12 can be clamped into the inner part of the two positioning grooves 11 again through the reaction force of the squeezed positioning spring 13, so as to position the adjusting shaft 7 and the metal shell 5 fixedly sleeved on the outer surface of the adjusting shaft 7, and the accuracy of the position adjustment of the strip-shaped fan 8 and the heating plate 15 is ensured through the above technical scheme.

[0027] The front of the adjusting motor 6 is provided with a protective cover plate on the outer surface of the support 10, and the support 10 and the protective cover plate are fixed through screws; the protective cover plate can protect the adjusting motor 6, and when the adjusting motor 6 fails, the protective cover plate can be removed to maintain the adjusting motor 6.

[0028] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An automatic gas shut-off device comprising a relay (1), characterized in that: One side of the relay (1) is equipped with PLC control device (2), one side of the PLC control device (2) is equipped with electromagnetic valve (3), the relay (1) and electromagnetic valve (3) are connected with PLC control device (2) between electric signal, and both ends of the electromagnetic valve (3) are connected with air compressor pipe (4).

2. An automatic gas shutoff device according to claim 1, wherein: Both sides of the lower end surface of the PLC control device (2) are fixedly installed with a support (10), the first support (10) from left to right is fixedly installed with an adjusting motor (6) in the inside, the output shaft of the adjusting motor (6) is connected with an adjusting shaft (7) through a shaft coupling, the outer surface of the adjusting shaft (7) is fixedly sleeved with a metal shell (5), the upper end surface of the metal shell (5) is fixedly installed with a strip fan (8), and the strip fan (8) is located directly below the PLC control device (2).

3. An automatic gas shut-off device according to claim 2, wherein: The lower side of the strip fan (8) is provided with a ventilation opening (9) inside the metal shell (5), and the ventilation opening (9) extends to the outer surface of the metal shell (5).

4. An automatic gas shut-off device according to claim 2, wherein: The lower end surface of the metal shell (5) is fixedly installed with a heating plate (15) at the middle position, the lower side of the heating plate (15) is provided with a heating cotton (16) fixed to the lower end surface of the metal shell (5), and the lower end surface of the heating cotton (16) is a plane.

5. An automatic gas shutoff device according to claim 2, wherein: The rear end surface of the second support (10) from left to right is fixedly installed with an environmental temperature sensor (17), and the environmental temperature sensor (17) and the adjusting motor (6) are electrically connected.

6. An automatic gas shutoff device according to claim 2, wherein: Both sides of the outer surface of the rear end of the adjusting shaft (7) are provided with a positioning groove (11), and each positioning groove (11) is provided with a positioning block (12) in the inside, one side of the outer surface of the positioning block (12) is connected with a positioning spring (13), and both ends of the positioning block (12) are inclined surfaces (14).

7. An automatic gas shutoff device according to claim 2, wherein: The front of the adjusting motor (6) is provided with a protective cover plate located on the outer surface of the support (10), and the support (10) and the protective cover plate are fixed by screws. Both sides of the outer surface of the rear end of the adjusting shaft (7) are provided with a positioning groove (11), and each positioning groove (11) is provided with a positioning block (12) in the inside, one side of the outer surface of the positioning block (12) is connected with a positioning spring (13), and both ends of the positioning block (12) are inclined surfaces (14).

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