CN212055996U - Pressure automatic regulation controller - Google Patents

Abstract

The utility model discloses a pressure intensity automatic adjustment control instrument, include the pressure pipe that meets with the pipeline pressure taking port that awaits measuring, still include the main part that is "n" type, the main part includes the tubulose control part that is the arc bending and the connecting portion that are used for connecting the pressure pipe, installs the slider that separates the tube hole into two parts in the tube hole of control part, and the both ends of slider are installed with sliding respectively on the inner wall of tube hole to when the pressure of slider both sides is inequality, the slider can move along the crooked trend of tube hole in the tube hole; the two ends of the floating block are respectively provided with a sliding block, the sliding blocks extend into the sliding grooves formed in the inner walls of the pipe holes and are in sliding fit with the sliding grooves, the sliding block at one end is used as a valve plate and is of an arc tile-shaped structure, the valve plate is slidably mounted in an inner expanding cavity formed in the bottom of the sliding groove, and the cavity bottom of the inner expanding cavity is provided with two pressure relief holes communicated with the outside. The adjusting and controlling instrument is simple and easy to operate and good in economical efficiency.

Description

Pressure automatic regulation controller

Technical Field

The utility model belongs to the technical field of the pressure differential detector, especially, relate to an automatic pressure regulation control appearance.

Background

In an oil pressure or air pressure pipeline, pressure in two sections of pipelines or two containers needs to be kept constant differential pressure, if the pressure in the two pipelines or two containers is equal, the differential pressure is 0, most of the existing control modes are that a pressure sensor is matched with a control system and corresponding execution parts, such as pumps and the like, to implement differential pressure control, and when the pressure sensor detects that the differential pressure exceeds a range, the control system selects to start the corresponding execution parts such as the pumps and the like to pump media to release pressure. Although the method is highly automatic, the requirement on the matched components is high, the purchase cost is high, the sensitivity of the electric elements is greatly influenced by the environment, such as humidity and temperature, and the normal operation is difficult in extremely cold places, such as most liquid crystal electronic display devices can have operation faults. Therefore, it is highly desirable to design a purely mechanical control device with less environmental impact to achieve control and improve weather resistance and economy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned technical problem, provide a pressure automatic adjustment control appearance, this pressure automatic adjustment control appearance has solved that current pressure differential regulation control equipment receives environmental factor to influence greatly, and supporting instrument equipment is with high costs and the difficult problem of maintaining.

The technical scheme of the utility model as follows: an automatic pressure regulation controller comprises a pressure sampling pipe connected with a pressure sampling port of a pipeline to be measured and an n-shaped main body, wherein the main body comprises a tubular control part which is bent in an arc shape and a connecting part used for connecting the pressure sampling pipe; the central authorities of slider are the sphere form sunken, and slider respectively has a slider at slider's both ends, the slider stretches into in the spout that the tube hole inner wall was seted up and with spout sliding fit, wherein the slider of one end is as being the valve plate and being curved tile sheet structure, the valve plate is installed with sliding in the interior expanding cavity that the spout tank bottom was seted up, the valve plate respectively is connected with the spacing circle spring of installing at interior expanding cavity both ends in its circumferencial direction at both ends of its circumferencial direction, should expand the route crooked orientation unanimity of cavity and spout in should, and the chamber bottom department in expanding the cavity has two pressure release holes with external intercommunication, when the pressure difference between two pressure ports that await measuring is for predetermineeing the within range, spacing circle spring prescribes the valve plate position and covers two pressure release holes completely and sealed department.

The utility model has the advantages that: the utility model provides an adjustment control appearance is pure mechanical type control structure, utilize the slider because of the law that removes for the change of pressure differential in the control unit, two special pressure release holes have been designed, when the pressure differential scope changes (perhaps become inequality by isobaric) and lead to the slider to remove to the position that exposes one of them pressure release hole, then high pressure one side begins the pressure release, when pressure recovers the pressure differential of the two for predetermineeing within range (or both sides pressure equals), the pressure release hole is covered the shutoff again, the regulation of pressure has been realized automatically, the scope of pressure differential has been controlled effectively, unmanned monitoring, and is simple and reliable, easy manufacturing, low cost.

Drawings

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

Fig. 2 is a schematic view of the locking device in the embodiment when locking the steel ball.

Element number description: 1. a pressure sampling pipe; 2. a control component; 3. a connecting portion; 4. steel balls; 5. a seal ring; 6. a slider; 7. a limiting round spring; 8. a knob; 9. a threaded ferrule; 10. a slide bar; 11. a conical surface; 12. a valve plate; 13. a pressure relief vent.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

The invention will be further explained with reference to the following figures and examples:

referring to fig. 1, the present embodiment provides an automatic pressure adjustment controller, which includes a pressure tapping pipe 1 connected to a pressure tapping port of a pipeline to be tested, where the structure of the pressure tapping pipe 1 is the same as that of a connecting pipe of an existing pressure detecting instrument. This regulation control appearance still includes the main part that is "n" type, specifically is: the main body comprises a control component 2 in an arc-shaped bent pipe shape and a connecting part 3 for connecting the pressure sampling pipe 1, wherein the control component 2 can be made transparent so as to observe the internal dynamic state and check the control state. Meanwhile, as shown in fig. 1, a floating block 6 which divides the pipe hole into two parts (two sections) is installed in the pipe hole of the control component 2 of the present embodiment, and two ends of the floating block 6 are respectively installed on the inner wall of the pipe hole in a sliding manner, so that when the pressures on two sides of the floating block 6 are different, the floating block 6 can move in the pipe hole along the bending direction of the pipe hole, that is, one side or two sides of the center of the floating block 6 are both spherically concave, two ends of the floating block 6 are respectively provided with a sliding block, and the sliding blocks extend into sliding grooves formed on the inner wall of the pipe hole and are in sliding fit with the sliding grooves; meanwhile, a slide block at one end of the floating block 6 is used as a valve plate 12 and is in an arc tile-shaped structure, the valve plate 12 is slidably arranged in an inner expanding cavity arranged at the bottom of the sliding chute, the two ends of the valve plate 12 in the circumferential direction are respectively connected with a limiting round spring 7 arranged at the two ends of the inner expanding cavity, the limiting round spring 7 is also in a corresponding arc shape, the inner expanding cavity and the chute have the same path bending direction and are also arc-shaped strip-shaped grooves, two pressure relief holes 13 communicated with the outside are arranged at the cavity bottom of the inner expanding cavity, the pressure relief holes 13 can be connected with an external pressure relief shunt pipeline (not shown in the figure), when the pressure difference between the two pressure taking ports to be measured is within a preset range, the position of the valve plate 12 is limited at the position where the two pressure relief holes 13 are completely covered and sealed by the limiting round spring 7, when the pressure difference changes, the position of the valve plate 12 is changed by overcoming the elastic force of the limiting round spring 7, so that the corresponding pressure relief hole 13 is exposed.

When the regulating controller is used, the rule that the floating block 6 moves in the control part 2 due to the change of the pressure difference is skillfully utilized, when the range of the pressure difference is changed and the floating block 6 moves to expose one of the pressure relief holes 13, the pressure relief is started on the high-pressure side, and the pressure relief holes 13 are covered and blocked again until the pressure returns to the preset range of the pressure difference between the pressure relief holes and the pressure relief hole, so that the regulation of the pressure intensity is automatically realized, the range of the pressure difference is effectively controlled, and the regulating controller is unmanned, simple, reliable and easy to manufacture. In addition, the adjusting and controlling instrument is of a pure mechanical control structure, is less influenced by the environment and has good weather resistance.

More specifically, the connecting portion 3 in this embodiment includes a connecting body, and a vent hole communicated with the pipe hole of the control component 2 is formed in the connecting body, a sealing ring 5 is embedded in an inner wall of a port of the vent hole facing away from the control component 2, and the sealing ring 5 is in a drum-shaped circumferential sidewall structure, that is, a sidewall of the sealing ring 5 is expanded and raised towards the outside. When the sealing ring is installed, the sealing ring 5 is sleeved on the surface of one steel ball 4, the steel ball 4 can rotate in the sealing ring 5 and can realize dynamic sealing with the inner wall of the sealing ring 5 so as to prevent leakage during rotation, and in order to ensure that the steel ball 4 does not fall off, the steel ball 4 is exposed out of the vent hole port, and the exposed part does not exceed half of the volume of the steel ball 4, preferably only approximately half of the volume is exposed, so that the rotation range is expanded as much as possible. The outlet end of the pressure sampling pipe 1 is fixedly embedded into a through hole of the steel ball 4, and the through hole is always communicated with the vent hole so as to measure the pressure of a medium conveyed into the connecting body; the steel ball 4 and the pressure tapping pipe 1 can be welded and fixed. The concrete structural design of above-mentioned connecting portion 3 for at the during operation, adjust earlier and press the position of pipe 1, with two pressure pipes 1 joint on the pressure port of getting of the system that awaits measuring, because get and press and be multidimension degree hinge structure between pipe 1 and the connecting portion 3, the rotation direction of very being convenient for is applicable to multiple pressure port of getting, is particularly useful for the detection of the complicated pipeline that interlocks each other. The steel ball 4 is connected with the dynamic seal articulated type of the connecting part 3 of the main body, the direction of the pressure tapping pipe 1 can be flexibly and changeably changed, so as to adapt to pressure tapping ports of pipelines to be detected at different positions, the work machine is flexible and has a simple and reliable structure, the floating block 6 in the control part 2 moves by utilizing the pressure difference of two sides (two pressure tapping pipes 1) to visually indicate the pressure difference value, and the pressure difference value detection device is particularly suitable for the condition that the pressure difference value detection precision requirement is not high, or only aims to detect whether the pressure intensity at two positions in a pipeline is balanced, the effect is more prominent, the detection can be accelerated, and the equipment and labor cost during the.

In addition, in the above embodiment, for the pressure tapping to be measured with a large pressure intensity, in order to sufficiently ensure the stability of the whole device after the pressure tapping is connected and resist the vibration caused by the flow of high-pressure fluid, the adjusting and controlling instrument further comprises a locking device for locking the steel ball 4, as shown in fig. 2, the locking device comprises a circular knob 8, the knob 8 integrally has a threaded ferrule 9 towards one side of the end of the connecting body, the threaded ferrule 9 can be screwed into the end of the connecting body where the steel ball 4 is located and encloses the steel ball 4, the threaded ferrule 9 has a section of inner wall which is a conical surface 11, and the large end of the conical surface 11 of the section of inner wall is arranged towards the screwing direction of the threaded ferrule 9. A plurality of sliding strips 10 are obliquely arranged in the connecting body, all the sliding strips 10 surround the steel balls 4, the sliding strips 10 can slide in the connecting body towards the direction close to the steel balls 4 and can slide to be in extrusion contact with the steel balls 4, and one ends of the sliding strips 10 departing from the steel balls 4 are smoothly connected with the conical surface 11 of the inner wall of the threaded ferrule 9. After the pressure taking port is connected and the installation position of the regulating controller is determined, the knob 8 is screwed, the conical surface 11 of the knob 8 is in contact with the sliding strip 10, and the large end of the conical surface 11 faces the screwing direction, so that the sliding strip 10 gradually approaches the steel ball 4 along with the deepening of the screwing direction and finally contacts, extrudes and butts against the steel ball 4, the steel ball 4 is hooped, the pressure taking pipe 1 is fixed, and the whole regulating controller is stably arranged above the pressure taking port so as to stably take pressure and detect pressure difference and accurately realize the automatic regulation of the pressure difference.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (3)

1. The utility model provides a pressure automatically regulated control appearance, includes and gets the pressure pipe that the pressure mouth meets with the pipeline that awaits measuring, its characterized in that: the pressure tapping pipe also comprises an n-shaped main body, wherein the main body comprises a tubular control part which is bent in an arc shape and a connecting part which is used for connecting the pressure tapping pipe;

the pipe hole of the control component is internally provided with a floating block which divides the pipe hole into two parts, and two ends of the floating block are respectively arranged on the inner wall of the pipe hole in a sliding manner, so that the floating block can move in the pipe hole along the bending direction of the pipe hole when the pressures on two sides of the floating block are different; the two ends of the floating block are respectively provided with a sliding block, the sliding blocks extend into sliding grooves formed in the inner walls of the pipe holes and are in sliding fit with the sliding grooves, the sliding block at one end serves as a valve plate and is of an arc tile-shaped structure, the valve plate is slidably mounted in an inner expanding cavity formed in the bottom of the sliding groove, two ends of the valve plate in the circumferential direction are respectively connected with limiting round springs mounted at two ends of the inner expanding cavity, the path bending direction of the inner expanding cavity is consistent with that of the sliding grooves, two pressure relief holes communicated with the outside are formed in the bottom of the inner expanding cavity, and when the pressure difference between two pressure taking ports to be measured is within a preset range, the limiting round springs limit the positions of the valve plate at positions where the two pressure relief holes are completely covered and sealed.

2. An automatic pressure regulation controller as recited in claim 1, wherein: the connecting portion include the connecting body, have in the connecting body with the air vent that the tube hole of control unit is linked together, and the air vent deviates from the one end port inner wall of control unit and has inlayed a sealing washer, the sealing washer is the circumference lateral wall column structure of drum, and the sealing washer cover can be realized the movive seal at a steel ball surface and steel ball rotation and between the inner wall of sealing washer, the steel ball exposes just exposed part is no longer than half of steel ball volume outside the air vent port, in the pressure pipe fixedly imbeds a perforation of steel ball, should perforate all the time with the air vent intercommunication.

3. The automatic pressure regulation controller of claim 2, wherein: the locking device comprises a round knob, the knob is integrally provided with a threaded ferrule towards one side of the end part of the connecting body, the threaded ferrule can be screwed into the end part of the connecting body where the steel balls are located and encloses the steel balls, the threaded ferrule is provided with a section of inner wall which is a conical surface, and the large end of the conical surface of the section of inner wall is arranged towards the screwing direction of the threaded ferrule; the connecting body is internally provided with a plurality of sliding strips in an inclined manner, all the sliding strips surround the steel balls, the sliding strips can slide in the connecting body towards the direction close to the steel balls and can slide to be in extrusion contact with the steel balls, and one end of each sliding strip, which is far away from the steel balls, is smoothly connected with the conical surface of the inner wall of the threaded ferrule.

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