CN215987044U

CN215987044U - High-precision pressure controller

Info

Publication number: CN215987044U
Application number: CN202122213731.2U
Authority: CN
Inventors: 汤海涛
Original assignee: Schutaco Compressor Co ltd
Current assignee: Schutaco Compressor Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-08
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a high-precision pressure controller which comprises a shell, wherein an upper end cover is arranged above the shell, a through groove is formed in the middle of the end cover, a limiting ring is arranged inside the through groove, a limiting bolt is arranged in the limiting ring and is in threaded connection with the limiting ring, an outer pipe is arranged in a first connecting ring, an inner rod is inserted at the lower end of the outer pipe, the upper part of the inner rod is fixedly connected with a movable block, the upper part of the movable block is fixedly connected with the top of the outer pipe through a spring, the lower part of the inner rod is fixedly connected with a fixing seat, reed pieces are arranged on two sides of the fixing seat, leads are arranged on two sides of the upper end cover of the shell, contacts are arranged at the lower ends of the leads, and a diaphragm is arranged below the fixing seat in the shell. The pressure controller is simple in structure, convenient to operate and maintain, high in control precision and capable of adjusting sensitivity of the pressure controller conveniently, and practicability of the pressure controller is effectively improved.

Description

High-precision pressure controller

Technical Field

The utility model relates to the technical field of pressure controllers, in particular to a high-precision pressure controller.

Background

The pressure controller is used for realizing detection, display, alarm and control signal output of medium pressure signals and ensuring normal operation of a system, and due to increasing domestic industries, the market of the pressure controller is gradually flooded, and the civil use and utilization conditions are mixed. In fact, it is not a simple matter to produce an excellent pressure controller; the quality precision is poor, the controller is generally expressed on the structural form, the pure contact is poor in precision, the existing pressure controller is stiff in structure, low in sensitivity and inconvenient to adjust and use a set value. To this end, we propose a high precision pressure controller.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high-precision pressure controller to solve the above-mentioned problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-precision pressure controller comprises a shell, an upper end cover is arranged above the shell, a first connecting ring is arranged below the upper end cover, the first connecting ring is in threaded connection with the shell, a through groove is formed in the middle of the end cover, a limiting ring is arranged inside the through groove, a limit bolt is arranged in the limit ring, the limit bolt is in threaded connection with the limit ring, an outer pipe is arranged in the first connecting ring, the outer pipe is movably connected with the first connecting ring, the lower end of the outer pipe is inserted with an inner rod, the inner rod is movably connected with the outer pipe, the upper part of the inner rod is fixedly connected with the movable block, the upper part of the movable block is fixedly connected with the top of the outer tube through a spring, the interior pole below and fixing base fixed connection, the fixing base both sides all are equipped with the reed, the casing is located the upper end cover both sides and all is equipped with the wire, the wire lower extreme is equipped with the contact, it is equipped with the diaphragm to be located the fixing base below in the casing.

Preferably, the upper end of the limiting bolt is provided with an inner hexagonal countersunk head.

Preferably, a lower end cover is arranged below the shell, a second connecting ring is arranged above the lower end cover, the second connecting ring is in threaded connection with the shell, and a liquid inlet pipe is arranged below the lower end cover.

Preferably, a support ring is arranged below the lead.

Preferably, a first sealing ring is arranged on the contact surface of the lower end cover and the shell.

Preferably, a second sealing ring is arranged on the contact surface of the upper end cover and the shell.

Compared with the prior art, the utility model has the beneficial effects that: this kind of high accuracy pressure controller, through the position of adjusting spacing bolt, can be to the regulation of the elasticity of spring, thereby reach the purpose of adjusting pressure controller sensitivity, pressure gets into the feed liquor pipe and makes the diaphragm produce deformation, the diaphragm promotes the fixing base, make the fixing base compress the spring through interior pole, at this moment, the reed breaks away from with the contact mutually, and realize the quick disconnection of system's power, the diaphragm produces deformation once more when system's pressure drops to the on-pressure value, the reed switches into the normal close state with the contact, thereby realize system's reliable operation, this kind of pressure controller simple structure, high operation, the maintenance of being convenient for, pressure controller sensitivity is convenient for adjust, control accuracy is high, pressure controller's practicality has effectively been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

in the figure: the device comprises a shell 1, an end cover 2, a first connecting ring 3, a through groove 4, a limiting ring 5, a limiting bolt 6, a hexagon socket countersunk head 7, an outer tube 8, an inner rod 9, a movable block 10, a spring 11, a contact 12, a lead 13, a fixed seat 14, a reed 15, a diaphragm 16, a lower end cover 17, a second connecting ring 18, a first sealing ring 19, a liquid inlet pipe 20, a second sealing ring 21 and a support ring 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a high-precision pressure controller comprises a shell 1, wherein an upper end cover 2 is arranged above the shell 1, a first connecting ring 3 is arranged below the upper end cover 2, the first connecting ring 3 is in threaded connection with the shell 1, the upper end cover 2 is fixedly connected with the shell 1 through the first connecting ring 3, so that the upper end cover is convenient to disassemble and convenient to maintain the pressure controller, a through groove 4 is formed in the middle of the end cover 2, a limiting ring 5 is arranged inside the through groove 4, a limiting bolt 6 is arranged in the limiting ring 5, the limiting bolt 6 is in threaded connection with the limiting ring 5, an outer pipe 8 is arranged in the first connecting ring 3, the outer pipe 8 is movably connected with the first connecting ring 3, an inner rod 9 is inserted at the lower end of the outer pipe 8, the inner rod 9 is movably connected with the outer pipe 8, a movable block 10 is fixedly connected above the inner rod 9, a movable block 10 is fixedly connected with the top of the outer pipe 8 through a spring 11, interior pole 9 below and fixing base 14 fixed connection, 14 both sides of fixing base all are equipped with reed 15, casing 1 is located 2 both sides of upper end cover and all is equipped with wire 13, wire 13 lower extreme is equipped with contact 12, it is equipped with diaphragm 16 to be located fixing base 14 below in the casing 1, and spacing ring 5 is spacing to spacing bolt 6, and when spacing bolt 6 rotated, spacing bolt 6 promoted outer tube 8 and moves down, and spring 11 atress compression simultaneously for interior pole 9 promotes fixing base 14 and moves down, makes reed 15 and contact 12 contact, through the position of adjusting spacing bolt 6, can adjust spring 11's elasticity, thereby reaches the purpose of adjusting pressure controller sensitivity.

Further, an inner hexagonal countersunk head 7 is arranged at the upper end of the limiting bolt 6, and the limiting bolt 6 is convenient to adjust due to the arrangement of the inner hexagonal countersunk head 7.

Further, a lower end cover 17 is arranged below the casing 1, a second connecting ring 18 is arranged above the lower end cover 17, the second connecting ring 18 is in threaded connection with the casing 1, a liquid inlet pipe 20 is arranged below the lower end cover 17, and the lower end cover 17 can be fixedly connected with the casing 1 through the second connecting ring 18, so that the lower end cover 17 is convenient to detach, and the pressure controller is convenient to inspect and maintain.

Further, a support ring 22 is disposed below the lead 13, and the support ring 22 can support the contact 12.

Furthermore, a first sealing ring 19 is arranged on the contact surface of the lower end cover 17 and the shell 1, and the first sealing ring 19 increases the sealing performance between the lower end cover 17 and the shell 1.

Furthermore, a second sealing ring 21 is arranged on the contact surface of the upper end cover 2 and the shell 1, and the second sealing ring 21 increases the sealing performance between the upper end cover 2 and the shell 1.

Specifically, in the utility model, when the limit bolt 6 rotates, the limit bolt 6 pushes the outer pipe 8 to move downwards, meanwhile, the spring 11 is compressed under stress, under the action of the elastic force of the spring 11, the inner rod 9 pushes the fixing seat 14 to move downwards, the reed 15 is in contact with the contact 12, the elastic force of the spring 11 can be adjusted by adjusting the position of the limit bolt 6, and therefore, the purpose of adjusting the sensitivity of the pressure controller is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high accuracy pressure controller, includes casing (1), its characterized in that: an upper end cover (2) is arranged above the shell (1), a first connecting ring (3) is arranged below the upper end cover (2), the first connecting ring (3) is in threaded connection with the shell (1), a through groove (4) is formed in the middle of the end cover (2), a limiting ring (5) is arranged inside the through groove (4), a limiting bolt (6) is arranged in the limiting ring (5), the limiting bolt (6) is in threaded connection with the limiting ring (5), an outer tube (8) is arranged in the first connecting ring (3), the outer tube (8) is movably connected with the first connecting ring (3), an inner rod (9) is inserted into the lower end of the outer tube (8), the inner rod (9) is movably connected with the outer tube (8), the upper portion of the inner rod (9) is fixedly connected with a movable block (10), the upper portion of the movable block (10) is fixedly connected with the top of the outer tube (8) through a spring (11), interior pole (9) below and fixing base (14) fixed connection, fixing base (14) both sides all are equipped with reed (15), casing (1) is located upper end cover (2) both sides and all is equipped with wire (13), wire (13) lower extreme is equipped with contact (12), it is equipped with diaphragm (16) to be located fixing base (14) below in casing (1).

2. A high precision pressure controller according to claim 1, wherein: and the upper end of the limiting bolt (6) is provided with an inner hexagonal countersunk head (7).

3. A high precision pressure controller according to claim 1, wherein: the improved shell is characterized in that a lower end cover (17) is arranged below the shell (1), a second connecting ring (18) is arranged above the lower end cover (17), the second connecting ring (18) is in threaded connection with the shell (1), and a liquid inlet pipe (20) is arranged below the lower end cover (17).

4. A high precision pressure controller according to claim 1, wherein: a support ring (22) is arranged below the lead (13).

5. A high precision pressure controller according to claim 3, wherein: and a first sealing ring (19) is arranged on the contact surface of the lower end cover (17) and the shell (1).

6. A high precision pressure controller according to claim 1, wherein: and a second sealing ring (21) is arranged on the contact surface of the upper end cover (2) and the shell (1).