CN210123707U

CN210123707U - Pressure switch with adjustable it is simple and easy

Info

Publication number: CN210123707U
Application number: CN201920794530.6U
Authority: CN
Inventors: 谢文乔; 张家衡
Original assignee: Yamada Jun Precision Machinery (suzhou) Co Ltd
Current assignee: Yamada Jun Precision Machinery (suzhou) Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-03-03
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses a simple adjustable pressure switch, which comprises a switch body, an oil inlet valve, an actuating rod, a spring, an adjusting nut, a micro switch and a plug; one end of the switch body is provided with an oil inlet valve; a plunger cavity is arranged in the switch body; the oil inlet valve is connected with one end of the plunger cavity; the other end of the plunger cavity is provided with an actuating rod; the tail end of the actuating rod extends into the plunger cavity; the front end of the actuating rod is provided with a contact plate; the micro switch is arranged beside the contact piece of the actuating rod; an oil outlet is arranged on the switch body; the oil outlet is communicated with the plunger cavity; the other end of the switch body is provided with an adjusting nut; a spring is arranged between the adjusting nut and the contact piece of the actuating rod. The utility model discloses low in manufacturing cost realizes turning into hydraulic pressure through plunger chamber and spring and makes the displacement of pole to turn into the electric control through micro-gap switch with displacement information, the good reliability, can adjust the hydraulic pressure size of opening and close through the adjustment nut simultaneously, the adjustability is good.

Description

Pressure switch with adjustable it is simple and easy

Technical Field

The utility model relates to a hydraulic pressure pipe-line system field especially relates to a pressure switch with adjustable it is simple and easy.

Background

The pressure switch is a device combined with an electric switch, and when a predetermined fluid pressure is reached, a switch contact is operated. The alarm or control signal is mainly applied to industrial equipment in power plants, petrochemical industry, metallurgical industry and the like to output alarm or control signals, has important application in the industrial field, can prevent the damage of important devices in production engineering, and avoids major production accidents. In a hydraulic system, a pressure switch is often used to ensure the pressure stability of the hydraulic system, when the pressure is too small, the pressure switch starts the supercharging equipment, and when the pressure is stable, the supercharging equipment is closed, so that the energy consumption is reduced. The existing pressure switch has the disadvantages of complex structure, high manufacturing cost, easy damage, incapability of adjusting the opening or closing pressure of the pressure switch, poor adjustability and unsatisfactory use effect.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, the utility model provides a pressure switch with adjustable it is simple and easy, not enough to among the prior art, make the pole move through hydraulic drive, turn into the displacement size of making the pole with hydraulic pressure size to cooperation micro-gap switch realizes controlling, has solved and current pressure switch structure is complicated, and manufacturing cost is high, fragile, and the unable pressure size of opening or closing of adjusting pressure switch, the adjustability is poor, the unsatisfactory problem of result of use.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a simple adjustable pressure switch comprises a switch body, an oil inlet valve, an actuating rod, a spring, an adjusting nut, a microswitch and a plug; an oil inlet valve is installed at one end of the switch body; a plunger cavity is arranged in the switch body; the oil inlet valve is connected with one end of the plunger cavity; the other end of the plunger cavity is provided with the actuating rod; the tail end of the actuating rod extends into the plunger cavity; the front end of the actuating rod is provided with a contact piece; the micro switch is arranged beside the contact piece of the actuating rod and is matched with the contact piece of the actuating rod; an oil outlet is formed in the switch body; the oil outlet is communicated with the plunger cavity at the end of the oil inlet valve; the other end of the switch body is provided with the adjusting nut; the adjusting nut is in threaded connection with the switch body; the spring is arranged between the adjusting nut and the contact piece of the actuating rod.

As an optimized scheme of the utility model, micro-gap switch control the plug.

As a preferred scheme of the utility model, through rotating the adjustment nut is adjusted the adjustment nut with make the interval between the contact of moving the pole.

As an optimized scheme of the utility model the income fuel tap with between the switch body and the action valve with be provided with the sealing washer between the switch body.

Through the technical scheme, the utility model discloses technical scheme's beneficial effect is: the utility model has the advantages of simple and reasonable structure, low in manufacturing cost realizes turning into hydraulic pressure through plunger chamber and spring and acts the displacement of pole to turn into the electric control through micro-gap switch with displacement information, convenience simple to use, good reliability can adjust the hydraulic pressure size of opening and close through the adjustment nut simultaneously, and the adjustability is good, excellent in use effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional view of fig. 1.

Fig. 3 is a schematic cross-sectional structure diagram of the present invention.

Fig. 4 and 5 are circuit structure diagrams of the micro switch of the present invention.

The corresponding part names indicated by the numbers and letters in the drawings:

1. switch body 2, plug 3, adjusting nut

4. Oil inlet valve 5, actuating rod 6 and spring

7. A microswitch 8, an oil outlet.

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 efforts belong to the protection scope of the present invention.

With reference to fig. 1 to 5, the utility model provides a pressure switch with adjustable it is simple and easy for realize the function of opening and shutting of circuit according to hydraulic pressure, including switch body 1, income fuel tap 4, make actuating rod 5, spring 6, adjusting nut 3, micro-gap switch 7 and plug 2. An oil inlet valve 4 is installed at one end of the switch body 1. A plunger chamber is provided in the switch body 1. The oil inlet valve 4 is connected with one end of the plunger cavity. An actuating rod 5 is arranged at the other end of the plunger cavity. The tail end of the actuating rod 5 extends into the plunger cavity; the front end of the actuating rod 5 is provided with a contact piece. The micro switch 7 is arranged beside the contact piece of the actuating rod 5 and is matched with the contact piece of the actuating rod 5. An oil outlet 8 is arranged on the switch body 1. The oil outlet 8 is communicated with the plunger cavity at the end of the oil inlet valve 4. An adjusting nut 3 is arranged at the other end of the switch body 1. The adjusting nut 3 is connected with the switch body 1 through threads. Specifically, the axial direction of the screw thread on the switch body 1 is arranged along the length direction of the plunger cavity. By rotating the adjusting nut 3, the distance between the adjusting nut 3 and the contact piece of the actuating rod 5 is adjusted, and the elasticity of the spring 6 to the actuating rod 5 is further adjusted. A spring 6 is provided between the adjusting nut 3 and the contact piece of the actuating rod 5.

In order to improve the utility model discloses a sealing performance is provided with the sealing washer between income fuel tap 4 and switch body 1 and between action valve and switch body 1.

The utility model discloses well plug 2 carries out the electricity with micro-gap switch 7 and is connected, through micro-gap switch 7 control plug 2's connection status. Specifically, the microswitch 7 may have a circuit configuration shown in fig. 4 and 5.

The utility model discloses a working process: the hydraulic system is connected with the utility model in series, and hydraulic oil flows in from the oil inlet valve 4 and flows out from the oil outlet 8; because the pressure of the hydraulic oil is different, the pressure generated by the plunger cavity to the actuating rod 5 is also different; when the pressure of the plunger cavity on the actuating rod 5 is larger than the elastic force of the spring 6 on the actuating rod 5, the actuating rod 5 moves towards the end where the spring 6 is located; when the pressure of the plunger cavity on the actuating rod 5 is smaller than the elastic force of the spring 6 on the actuating rod 5, the actuating rod 5 is far away from the end where the spring 6 is located; the position information of the actuating rod 5 is read through the microswitch 7 and is connected with the plug 2 through the microswitch 7, so that the position information is converted into electric control.

Through the above-mentioned specific embodiment, the beneficial effects of the utility model are that: the utility model has the advantages of simple and reasonable structure, low in manufacturing cost realizes turning into hydraulic pressure through plunger chamber and spring 6 and acts as the displacement of pole 5 to turn into the electric control through micro-gap switch 7 with displacement information, convenience simple to use, the good reliability can adjust the hydraulic pressure size of opening and close through adjusting nut 3 simultaneously, and the adjustability is good, excellent in use effect.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A simple adjustable pressure switch is characterized by comprising a switch body, an oil inlet valve, an actuating rod, a spring, an adjusting nut, a microswitch and a plug; an oil inlet valve is installed at one end of the switch body; a plunger cavity is arranged in the switch body; the oil inlet valve is connected with one end of the plunger cavity; the other end of the plunger cavity is provided with the actuating rod; the tail end of the actuating rod extends into the plunger cavity; the front end of the actuating rod is provided with a contact piece; the micro switch is arranged beside the contact piece of the actuating rod and is matched with the contact piece of the actuating rod; an oil outlet is formed in the switch body; the oil outlet is communicated with the plunger cavity at the end of the oil inlet valve; the other end of the switch body is provided with the adjusting nut; the adjusting nut is in threaded connection with the switch body; the spring is arranged between the adjusting nut and the contact piece of the actuating rod.

2. The simple adjustable pressure switch as defined in claim 1, wherein said micro switch controls said plug.

3. The simple adjustable pressure switch as claimed in claim 2, wherein the distance between the adjusting nut and the contact of the actuating rod is adjusted by rotating the adjusting nut.

4. The simple adjustable pressure switch of claim 3 wherein a sealing ring is disposed between the inlet valve and the switch body and between the actuator valve and the switch body.