Search

CN-121979317-A - Pressure controller with buffer structure equipped with terminal

CN121979317ACN 121979317 ACN121979317 ACN 121979317ACN-121979317-A

Abstract

The invention relates to the technical field of pressure controllers, in particular to a pressure controller with a buffer structure equipped with a terminal, which comprises a main shell, a pressure guiding port, a pressure sensing regulating element, a wiring bin, a touch control module and a corrugated rod, wherein a neck tube for anchoring a lead wire extends from the wiring bin, an inner hole of the neck tube is provided with a variable-section zigzag duct, the peripheral surface of the neck tube is provided with self-locking threads, the touch control module comprises a signal terminal and an insulating base, the insulating base extends out of a flexible cantilever beam abutting against the inner wall of the wiring bin, the thickness of the flexible cantilever beam is gradually reduced along the extending direction, and the corrugated rod is connected between the pressure sensing regulating element and the touch control module. According to the invention, the external lead is blocked from being pulled by the wiring bin with the self-locking screw thread and the labyrinth channel, the flexible cantilever Liang Chu is used for controlling the module to absorb vibration, and the corrugated rod is combined for flexible transmission, so that the purposes of intercepting mechanical interference, maintaining the stability of the terminal and ensuring accurate output of signals of equipment under complex working conditions are realized.

Inventors

  • CHEN JIANI

Assignees

  • 中科环力股份有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (10)

  1. 1. The utility model provides a pressure controller that buffer structure was equipped with to terminal for seal the pressure variable of pipe network adjusts, including main casing, draw the pressure mouth, locate inside the main casing and with monitoring pressure variable change into mechanical displacement's pressure sensing regulation and control element, its characterized in that still includes: The wiring bin is used as an adjusting signal output barrier, a neck pipe of an anchoring lead wire extends from the wiring bin, an inner hole of the neck pipe is provided with a variable-section zigzag pore canal, and the peripheral surface of the neck pipe is provided with self-locking threads; the touch module is accommodated in the main shell and outputs a pressure regulation feedback instruction, the touch module comprises an insulation base and a signal terminal for outputting a displacement signal, the insulation base extends out of a flexible cantilever beam which is abutted against the inner wall of the wiring bin, and the thickness of the flexible cantilever beam is gradually reduced along the extending direction; the flexible transmission pressure variable corresponds to the corrugated rod of the mechanical displacement, and the corrugated rod is connected between the pressure sensing regulating element and the touch control module.
  2. 2. The pressure controller with the buffer structure for the terminal of claim 1, wherein the cross-section profile of the inner bore of the neck tube is asymmetrically serrated, and the inner bore of the neck tube comprises a gentle slope facing the outside of the wiring bin and a steep slope facing the back of the inside of the wiring bin.
  3. 3. The pressure controller with buffering structure of claim 2, wherein the inner hole of the neck tube is axially provided with a plurality of radially protruding wave crests, and the inner hole size of the wave crests is stepwise increased along the penetrating direction of the lead.
  4. 4. The pressure controller with the buffer structure of claim 1, wherein the flexible cantilever beam is of an S-shaped folding structure, the flexible cantilever beam comprises at least two arc transition areas which are bent reversely, and one end of the flexible cantilever beam, which is far away from the insulating base, is in sliding abutting connection with the inner side wall of the main shell.
  5. 5. The pressure controller with buffering structure of claim 4, wherein the insulating base is of polygonal structure, and the flexible cantilever beams are arranged in a plurality and are symmetrically connected to the bottom corner positions of the insulating base respectively.
  6. 6. The pressure controller with buffering structure of claim 1 or 4, wherein the free end of the flexible cantilever beam far away from the insulating base is provided with a hemispherical guide head protruding outwards, and the inner wall of the main shell is provided with a positioning chute in sliding fit with the guide head.
  7. 7. The pressure controller with buffering structure for terminal set forth in claim 6, wherein the roughness of the wall surface of the positioning chute is gradually changed along the sliding path, and the roughness below the positioning chute is greater than the roughness above the positioning chute.
  8. 8. The pressure controller with the buffer structure for the terminal of claim 1, wherein the corrugated rod is connected with the insulating base in a universal mode, a convex joint is arranged at one end, facing the insulating base, of the corrugated rod, and a shifting fork groove for accommodating the convex joint is correspondingly arranged on the insulating base.
  9. 9. The pressure controller with buffering structure for terminal set in claim 8, wherein the corrugated rod has corrugated unit with wide axial section and narrow sides and with central waist thickness greater than the thickness of the corrugated unit in the trough.
  10. 10. The pressure controller with buffering structure for terminal set of claim 1, wherein the roughness of the sides of the two threads of the self-locking thread is different and the roughness of the side of the self-locking thread facing the outside of the wiring compartment is larger than the roughness of the side of the self-locking thread facing the wiring compartment.

Description

Pressure controller with buffer structure equipped with terminal Technical Field The invention relates to the technical field of pressure controllers, in particular to a pressure controller with a terminal provided with a buffer structure. Background The pressure controller is used as a typical process control element and is mainly used for detecting pressure parameters in a closed fluid system in real time and outputting control signals when the pressure reaches a set threshold value so as to realize automatic adjustment or safety interlocking control of executing mechanisms such as pumps, valves and the like. In the prior art, such pressure controllers generally adopt mechanical pressure sensing elements such as diaphragms, bellows or pistons to convert fluid pressure into mechanical displacement, and realize conversion from pressure signals to electrical control signals through cooperation of a spring setting mechanism and a switch triggering assembly, so that a typical mechanical pressure control closed-loop or open-loop regulation system is formed. However, in practical industrial applications, pressure controllers are often installed in equipment or piping environments where there is continuous vibration, such as in the vicinity of construction machinery, marine power systems, and large rotating equipment. Under such working conditions, the controller not only needs to complete the pressure detection function, but also needs to ensure the stability and accuracy of the output control signal. In order to reduce the influence of vibration on the control performance, the prior art is generally improved by arranging a damping structure at the installation end of the device, improving the rigidity of the whole structure or performing encapsulation treatment on the controller. For example, by providing resilient shims in the mounting base to reduce vibration transmission, or by increasing the degree of structural tightness to enhance overall vibration resistance. However, the above measures are mainly optimized for the whole or external structure of the device, and lack of a targeted regulation and control means for the local sensitive link in the process of generating the control signal, so that the control precision is still difficult to ensure in a complex vibration environment. Particularly, when the pressure controller is applied to a medium-high frequency vibration environment, vibration load is transmitted to relevant parts of internal signal output through a structure path, so that a local structure participating in signal formation generates tiny displacement or contact state change, and further a trigger threshold value is caused to fluctuate, thereby causing instability of an output control signal and further affecting control accuracy and stability of a pressure regulation process. For this purpose, a pressure controller is proposed in which the terminals are equipped with a buffer structure. Disclosure of Invention The invention aims to provide a pressure controller with a buffer structure equipped with a terminal, which solves the problem of unstable signals caused by structural micro-motion of the pressure controller in a vibration environment, blocks external lead pulling through a wiring bin with self-locking threads and a labyrinth channel, absorbs vibration by using a flexible cantilever Liang Chu control module and combines a corrugated rod to carry out flexible transmission, thereby achieving the purposes of intercepting mechanical interference, maintaining the stability of the terminal and ensuring accurate output of signals of equipment under complex working conditions. In order to achieve the above purpose, the present invention provides the following technical solutions: A pressure controller with a buffer structure for a terminal is used for pressure variable adjustment of a closed pipe network, and comprises a main shell, a pressure guiding port, a pressure sensing regulating element, a wiring bin and a neck pipe, wherein the pressure sensing regulating element is arranged in the main shell and converts a monitoring pressure variable into mechanical displacement, the wiring bin is used as a regulating signal output barrier, the neck pipe is extended to an anchoring lead, an inner hole of the neck pipe is provided with a variable-section zigzag duct, the outer peripheral surface of the neck pipe is provided with self-locking threads, a junction box joint in the prior art is mainly in extrusion fit with a rubber ring by adopting equal-diameter straight threads, and easy to release under continuous vibration. The touch module is accommodated in the main shell and outputs a pressure regulation feedback instruction, the touch module comprises an insulation base and a signal terminal for outputting a displacement signal, the insulation base extends out of a flexible cantilever beam which is abutted against the inner wall of the wiring bin, the thickness of the flexible cantilever beam is