CN217633879U

CN217633879U - Automatic pressure regulating device for controlling electromagnetic valve by using pressure sensor

Info

Publication number: CN217633879U
Application number: CN202221526094.2U
Authority: CN
Inventors: 丁健
Original assignee: Yibin Sanjiang Machinery Co Ltd
Current assignee: Yibin Sanjiang Machinery Co Ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-21
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses an automatic pressure regulating device with pressure sensor control solenoid valve relates to solenoid valve control technical field, and mainly used solves traditional automatic pressure regulating device and reacts insensitive, and the pressure regulating precision is low, the problem that the leak source is many. The utility model discloses the structure includes sleeve, first connection seat, tail connection seat, piston rod, pressure sensing spring, a serial communication port, the sleeve is the tubbiness, and the open end is connected with the tail connection seat, and the bottom is connected with first connection seat, and the sleeve bottom is equipped with the through-hole, and the spring setting is between sleeve bottom and piston rod, and the sleeve is the insulator, and piston rod, first connection seat, tail connection seat are the conductor. The utility model provides a pair of a pressure sensor for intercommunication circuit and an automatic voltage regulation device with pressure sensor control solenoid valve, the response is sensitive, and the reaction is quick, and the pressure regulating precision is high.

Description

Automatic pressure regulating device for controlling electromagnetic valve by using pressure sensor

Technical Field

The utility model relates to a solenoid valve control technical field particularly, relates to a be used for connecting circuit's pressure sensor and an automatic voltage regulator with pressure sensor control solenoid valve in the air pressure system.

Background

An automatic pressure regulating device is generally adopted in the air pressure system to regulate the pressure of the air pressure system. When the pressure of the gas system exceeds the specified use pressure, the automatic pressure regulating device can discharge the pressure in the system outwards so as to protect system elements from being damaged; the automatic pressure regulating device can also be arranged in the inflation system and is used for regulating the conveying relationship between the gas storage unit and the gas source, so that the pressure of the gas storage unit is kept in a constant range, and the long-term overload work of the gas source is prevented. The functions can be applied to the industrial fields of airplanes, trains, ships, automobiles, engineering machinery, factory assembly lines and the like, which relate to the pneumatic system.

The traditional automatic pressure regulating device is mainly mechanical and electric control, the mechanical pressure regulating device has a complex structure, low pressure regulating precision and a plurality of leakage points, and the pressure sensing module and the pressure regulating module are required to be installed together in a close distance, so that the pressure sensing module cannot accurately sense the change of the terminal pressure, has slow response and cannot be applied to a precise air pressure control system; the electric control type pressure regulating device senses pressure by using the sensor and feeds the pressure signal back to the control unit, the control unit outputs an electric signal to control the action of the electromagnetic valve, and the electric control type pressure regulating device is simple in structure and high in control precision, but a control system is complex, the application range is narrow, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure sensor for intercommunication circuit and an automatic pressure regulating device with pressure sensor control solenoid to it is insensitive to solve traditional mechanical type automatic pressure regulating device reaction, and the pressure regulating precision is low, and the leak source is many complicated with automatically controlled formula automatic pressure regulating device control system, and the range of application is narrow, problem with high costs.

For realizing the purpose of the utility model, the technical proposal adopted is that: the pressure sensing device for communicating the circuit comprises a sleeve, a head joint seat, a tail joint seat, a piston rod and a pressure sensing spring, and is characterized in that an insulating gasket is arranged between the pressure sensing spring and the tail joint seat, the sleeve is an insulator, and the piston rod, the head joint seat and the tail joint seat are conductors.

Under the natural state, under the action of the elastic force of the pressure-sensitive spring, the piston rod is contacted with the tail connecting seat and is not contacted with the head connecting seat; the pressure sensing port is communicated with an air pressure system, the air pressure system applies pressure to the piston rod towards the direction of the first connecting seat, the direction of the pressure is opposite to the elastic force direction of the spring, when the pressure of the air pressure system is larger than the elastic force of the pressure sensing spring, the piston rod is pushed to move towards the direction of the first connecting seat, two ends of the piston rod are respectively contacted with the first connecting seat and the tail connecting seat, and the interior of the pressure sensing device is communicated; when the pressure of the air pressure system is smaller than the elastic force of the pressure sensing spring, the elastic force of the spring pushes the piston rod to move towards the tail connecting seat, the piston rod is separated from the head connecting seat, and the interior of the pressure sensing device is not communicated.

Furthermore, a guide hole matched with the plug rod of the piston rod is formed in the insulating gasket. Providing guidance for the piston rod.

Furthermore, the piston of the piston rod is matched with the pressure sensing port in size and is arranged in the pressure sensing port.

Further, the sleeve and the insulating gasket are designed in an integrated mode.

The automatic pressure regulating device adopting the pressure sensor to control the electromagnetic valve is characterized by comprising the electromagnetic valve and a pressure sensor used for communicating a circuit, wherein the electromagnetic valve is electrically connected with the pressure sensor.

The pressure sensor and the electromagnetic valve of the automatic pressure regulating device can be respectively arranged at different positions of equipment, if the equipment can conduct electricity, a single electric path is arranged between the electromagnetic valve and the pressure sensor, and the loop is provided by the conduction of the equipment; the device itself is non-conductive and a complete conductive loop needs to be set between the solenoid valve and the pressure sensor.

Further, the electromagnetic valve is a two-position two-way normally closed electromagnetic valve.

Furthermore, the electromagnetic valve comprises a stop seat, an electromagnetic coil, a valve core, a spacer bush, a valve spring and a valve seat, wherein the stop seat and the valve core are coaxially arranged, the shell is barrel-shaped, the opening of the shell faces the valve core, and the stop seat and the outer ring of the valve core are provided with the electromagnetic coil; a spacer bush is axially arranged between the electromagnetic coil and the valve core, and a valve spring is arranged between the spacer bush and the valve core; the valve seat is provided with a pressure relief opening, and the valve core is arranged at the pressure relief opening.

Furthermore, a status indicator is arranged on an electric connection path of the electromagnetic valve and the pressure sensor.

Furthermore, the solenoid valve is arranged on a shell, and the shell is a conductor. Connected with the equipment through the shell.

Furthermore, the pressure sensor is arranged on the shell, and the electromagnetic valve is communicated with the sensor through an inner cavity of the shell.

The utility model has the advantages that:

1. the utility model adopts the communication of the control circuit of the pressure sensor, the pressure sensor adopts the piston type, the structure is simple, the maintenance is convenient, the debugging is simple, and the induction is sensitive;

2. the utility model adopts the pressure sensor linkage electromagnetic valve to control the valve to open and close, the sensing is sensitive, the reaction is rapid, the pressure regulating precision is high, and the leakage point is few;

3. the utility model discloses a modular design, each module adopts the cartridge formula, does not confine to the installation distance of module, and dispersedly installs each position at the system, and the suitability is good.

Drawings

FIG. 1: the structure of the pressure sensor of the utility model is shown schematically;

FIG. 2: the pressure-sensing type automatic pressure regulating device of the utility model is a split type structural schematic diagram;

FIG. 3: the pressure-sensing type automatic pressure regulating device of the utility model is an integrated structural schematic diagram;

FIG. 4: the utility model discloses be applied to the principle sketch map of the atmospheric system of commercial vehicle;

FIG. 5: the utility model discloses be applied to the principle sketch of assembly line system.

Reference numbers and corresponding part names in the drawings:

1-first connection seat, 2-sleeve, 3-pressure sensing spring, 4-piston rod, 5-tail connection seat, 6-shell, 7-valve seat, 8-valve spring, 9-spacer, 10-valve core, 11-electromagnetic coil, 12-stop seat, 13-electromagnetic valve, 14-pressure sensor, 15-state indicator, 16-air compressor, 17-air bottle, 18-accumulator, 19-air source and 20-pneumatic element.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

the utility model provides a pressure sensor for connecting circuit, which is shown in fig. 1 and is characterized in that the pressure sensor comprises a sleeve 2, the sleeve 2 is barrel-shaped, the opening end is connected with a tail joint seat 5, the bottom end is connected with the head joint seat 1, a pressure sensing port is arranged on the head joint seat 1, the tail joint seat 5 is provided with an opening communicated with the atmosphere, a piston rod 4 is arranged in the sleeve 3, the piston of the piston rod 4 is matched with the pressure sensing port in size and is arranged in the pressure sensing port, and a plug rod extends to the tail joint seat 5; a pressure sensing spring 3 is arranged between the piston rod 4 and the bottom of the sleeve 2, the bottom of the sleeve 2 is provided with a through hole matched with a plug rod of the piston rod 4 to provide guidance for the piston rod 4, and the size of the through hole is the same as that of an opening arranged on the tail connecting seat 5; the sleeve 2 is an insulator, and the piston rod 4, the first connecting seat 1 and the tail connecting seat 5 are conductors.

The head connecting seat 1 and the tail connecting seat 5 of the pressure sensor are respectively connected with two ends of a circuit, a pressure sensing port on the tail connecting seat 5 is communicated with an air pressure system, when the pressure in the air pressure system is smaller than the elastic force of the pressure sensing spring 3, the interior of the pressure sensor is not communicated, and the circuit is disconnected; when the pressure in the air pressure system is larger than the elastic force of the pressure sensing spring 3, the pressure sensing device is communicated with the inside and the circuit is communicated.

Example two:

as shown in fig. 2, the automatic pressure regulating device of the pressure sensor controlled solenoid valve according to the first embodiment of the present invention includes a solenoid valve 13 and a pressure sensor 14 for communicating a circuit, wherein the pressure sensor 14 is electrically connected to the solenoid valve 13. The electromagnetic valve 13 is a two-position two-way normally closed electromagnetic valve and comprises a stop seat 12, an electromagnetic coil 11, a valve core 10, a spacer 9, a valve spring 8 and a valve seat 8, wherein the stop seat 12 and the valve core 10 are coaxially arranged, and the electromagnetic coil 11 is arranged on the outer rings of the stop seat 12 and the valve core 10; a spacer bush 9 is axially arranged between the electromagnetic coil 11 and the valve core 10, and a valve spring 8 is arranged between the spacer bush 9 and the valve core 10; the valve seat 8 is provided with a pressure relief opening, and the valve core 10 is arranged at the pressure relief opening. A status indicator 15 is provided on an electrical connection path between the solenoid valve 13 and the pressure sensor 14.

When the electromagnetic coil 11 is electrified, the valve core 10 overcomes the spring force of the valve spring 8 under the action of electromagnetic force, the valve core 10 is pushed to move towards the direction of the stop seat 12 to separate the valve core 10 from the valve seat 8, and the pressure of the air pressure system flows to the outside of the system through an internal flow passage of the electromagnetic valve 13; when the electromagnetic coil 11 is not energized, the valve core 10 is tightly pressed on the valve seat 8 under the spring force of the valve spring 8, the pressure relief opening on the valve seat 8 is blocked, and the pressure of the air pressure system cannot flow to the outside of the system through the internal flow passage of the electromagnetic valve 13. The negative wire of the state indicator 15 is connected with a power supply, the positive wire is connected with the first connection seat 1, the working state indicator 15 is installed on an operation maintenance panel of the air pressure system and is in a red indicator lamp shape, when a circuit is switched on, the red indicator lamp is electrified to emit red light, and the working state indicator 15 indicates that the automatic pressure regulating device is in a working state, so that overpressure protection is achieved.

Example three:

as shown in fig. 3, the automatic pressure regulating device using the pressure sensor control solenoid valve according to the first embodiment of the present invention includes a solenoid valve 13 and a pressure sensor for connecting a circuit, the pressure sensor 14 is electrically connected to the solenoid valve 13, the solenoid valve 13 is a two-position two-way normally closed solenoid valve, the solenoid valve 13 and the pressure sensor 14 are disposed on the housing 6, the solenoid valve 13 and the sensor 15 are connected through an inner cavity of the housing 6, and the housing 6 is a conductor; a status indicator 15 is provided on an electrical connection path between the solenoid valve 13 and the pressure sensor 14.

The shell 6 is communicated with an air pressure system, and the state indicator 15 is connected through a power cord and is arranged on a maintenance panel of the air pressure system. The overpressure protection effect is achieved in the pneumatic system.

Example four:

as shown in fig. 4, the second embodiment of the present invention provides an automatic pressure regulating device for an air pressure system of a commercial vehicle, which needs to regulate the inlet flow of an air compressor according to the pressure of an air bottle.

The solenoid valve 13 is installed in an outlet pipeline of the air compressor 16; the pressure sensor 14 is inserted into a vehicle gas cylinder 17, and the status indicator 15 is installed in a vehicle cab.

The negative pole line of the electromagnetic valve 13 is connected with the vehicle storage battery 18, the positive pole line of the electromagnetic valve 13 is connected to the tail connecting seat 5 of the pressure sensor 14, and the head connecting seat 1 of the pressure sensor 14 is connected with the positive pole line of the vehicle storage battery 18; the state indicator 15 has a negative electrode connected to the negative electrode of the battery 18 and a positive electrode connected to the tail socket 5 of the pressure sensor 14.

When the pressure of the air bottle 17 exceeds the specified pressure, the pressure sensor 14 senses the pressure and then is communicated with the circuit, the electromagnetic valve 13 is opened, the air compressor 16 is unloaded in flow, the electromagnetic valve 13, the pressure sensor 14 and the state indicator 15 are installed in a split mode, the installation position is not limited by the length and arrangement of vehicle pipelines, and the function of automatically adjusting the flow of an air pressure system can be achieved only through power line connection.

Example five:

as shown in fig. 5, will the utility model provides a two automatic voltage regulator is applied to pipeline system, and this system's air inlet manifold flow is great, and each admits air divides union coupling pneumatic element flow less, needs to gather inlet pressure and sets up a plurality of pressure release points at the system end and use the gas part in order to protect the rear end.

The electromagnetic valves 13 are arranged in the air inlet branch pipes at the front ends of the pneumatic elements 20, and the number of the electromagnetic valves can be 1 or more; the pressure sensor 14 is inserted into an air inlet manifold of a pneumatic system connected with an air source 19.

When the pressure of the air inlet main pipe exceeds the specified pressure, the pressure sensor 14 senses the pressure and then communicates with the circuit, the electromagnetic valves 13 arranged in the air inlet branch pipes are electrified and opened, the pressure of the air inlet branch pipes is reduced to protect the tail end pneumatic element 20, an operator reports the fault according to the air release phenomenon of the electromagnetic valves 13, and a maintainer handles the overpressure fault of the air inlet main pipe.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pressure sensor for intercommunication circuit, includes sleeve (2), first seat (1), tail seat (5), piston rod (4), pressure sensing spring (3), its characterized in that, sleeve (2) are the tubbiness, and the open end is connected with tail seat (5), and the bottom is connected with first seat (1), is equipped with the through-hole at the bottom of sleeve (2), and the spring setting is between sleeve (2) bottom and piston rod, and sleeve (2) are the insulator, and piston rod (4), first seat (1), tail seat (5) are the conductor.

2. The pressure sensor for connecting an electric circuit according to claim 1, wherein the bottom of the sleeve (2) is provided with a through hole sized to fit the stem of the piston rod (4).

3. The pressure sensor for connecting an electric circuit according to claim 1, wherein the piston of the piston rod (4) is sized to fit the pressure sensing port and is disposed in the pressure sensing port.

4. An automatic pressure regulating device of a pressure-sensitive controlled solenoid valve according to any of claims 1 to 3, characterized by comprising a solenoid valve (13) and a pressure sensor (14) for communication of a control circuit, the solenoid valve (13) and the pressure sensor (14) being electrically connected.

5. The automatic pressure regulating apparatus for a pressure-sensitive controlled solenoid valve as claimed in claim 4, wherein the solenoid valve (13) is a two-position normally closed solenoid valve.

6. The automatic pressure regulating device of the pressure sensor controlled electromagnetic valve according to claim 5, characterized in that the electromagnetic valve comprises a stop seat (12), an electromagnetic coil (11), a valve core (10), a spacer (9), a valve spring (8) and a valve seat (7), the stop seat (12) and the valve core (10) are coaxially arranged, and the electromagnetic coil (11) is arranged on the outer ring of the stop seat (12) and the valve core (10); a spacer bush is arranged between the electromagnetic coil (11) and the valve core (10), and a valve spring (8) is arranged between the spacer bush and the valve core (10); a pressure relief opening is formed in the valve seat (7), and the valve core (10) is arranged at the pressure relief opening.

7. The automatic pressure regulating device of a pressure-sensitive controlled solenoid valve as claimed in claim 6, wherein the solenoid valve (13) is provided on the housing (6), and the housing (6) is a conductor.

8. The automatic pressure regulating apparatus for a pressure-sensitive controlled solenoid valve as claimed in claim 7, wherein the pressure sensor (14) is provided on the housing, and the solenoid valve (13) and the pressure sensor (14) are communicated through an inner cavity of the housing.

9. The automatic pressure regulating apparatus for a pressure-sensitive controlled solenoid valve according to any one of claims 4 to 8, wherein a status indicator (15) is provided on an electrical connection path between the solenoid valve and the pressure sensor.