CN110849531A - Method for observing pressure gauge by directionally locking pipeline system - Google Patents

Abstract

The invention discloses a method for observing a pressure gauge in a directional locking pipeline system, aiming to provide a fast and convenient method for observing a pressure gauge in a locking pipeline system with a flexible and adjustable viewing angle. The present invention is realized by the following technical solutions, including the following steps: preparing a pipeline support for connecting the pipeline system, connecting the pipeline support and a hexagonal nut for observing the pressure gauge, and preparing a threaded tire core with two symmetrical legs on the lower end surface ; When installing the pressure gauge, screw the riser of the pipeline support and the threaded tire core into the threaded countersunk hole of the hexagonal nut, and insert the two legs at the lower end of the threaded tire core into the T-shaped round head at the upper end of the pipeline support riser in the circumferential direction. , corresponding to the notch grooves of the above two feet; then connect the pipeline support between the pipeline ports of the pipeline system, after determining the direction of the pressure gauge, close the seal, float and lock the threaded tire core; when the fluid medium passes through the pipeline When the standpipe of the bracket is connected to the pressure gauge, the pressure gauge will display the pressure value flowing through the inflow point of the system piping.

Description

Method of Observing Pressure Gauge for Orientation Locking Piping System

technical field

The invention relates to a locking structure for installing and fixing various pressure gauges and quickly obtaining angular positioning. .

Background technique

A pressure gauge is an instrument that uses an elastic element as a sensitive element to measure and indicate a pressure higher than the ambient pressure. The pressure gauge transmits the pressure deformation to the pointer through the elastic deformation of the sensitive element in the watch, and then causes the pointer to rotate to display the pressure. The application of pressure gauges can be found in almost all industrial processes and scientific research fields, and can be seen everywhere in the fields of heat pipe network, oil and gas transmission, water supply and gas supply system, vehicle maintenance and repair shops, etc. Especially in the process of industrial process control and technical measurement, due to the high mechanical strength and convenient production of the elastic sensitive element of the mechanical pressure gauge, the mechanical pressure gauge is more and more widely used. Check the safety net of the circulation pipeline of the input interface of the pump, and usually check the pressure gauge of the pump at any time, find out whether there is any damage, and replace the pressure gauge in time. When installing the pressure gauge, the threaded installation head is usually screwed to the corresponding pipeline port, and the inner cavity of the pipeline is connected with the inner cavity of the pressure gauge. This connection method is inconvenient when reading the gauge, because the pressure gauge and the pipeline port must be screwed tightly, otherwise there will be leakage here. On one side, it causes trouble to read the meter. Sometimes the watch reader rotates the dial at a certain angle, which will cause loosening while making the watch easy to read, which may cause leakage. In various gas and liquid systems, pressure gauges that are not easy to disassemble on-site will also involve the observation and recording of system pressure values at many specific points to obtain corresponding data. With the connection of some pressure gauges on pipelines, how to quickly connect the pressure gauges to the pipeline, and obtain a stable and reliable seal, and obtain an easy-to-observe pressure surface angle, is a problem that cannot be ignored. A good observation surface and no good connection will bring unnecessary obstacles and troubles to the whole system. Usually the pressure gauge is sleeved on the pipeline bracket through the hexagonal nut, and the side that needs to be connected with the pressure gauge is convenient to screw the pressure gauge from the lower end, and the pipeline bracket is installed at the observable point with the connecting screw. However, how to apply the thread-locking directional pressure gauge and improve the observable surface angle of the pressure surface is a more difficult problem.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a practical, fast and convenient method for observing the pressure gauge by locking the pipeline system with flexible and adjustable viewing angle during use, aiming at the problems existing in the prior art.

The technical solution adopted by the present invention to solve the technical problem is, a method for directional locking the pipeline system to observe the pressure gauge, which is characterized in that it includes the following steps:

Prepare a pipeline bracket 4 for connecting the pipeline system, connect the pipeline bracket 4 and the hexagonal nut 2 for observing the pressure gauge, and prepare a threaded tire core 3 with two symmetrical legs on the lower end surface; when the pressure gauge 1 is installed , screw the riser of the pipeline support 4 and the threaded tire core 3 into the threaded countersunk hole of the hexagonal nut 2, so that the threaded tire core 3 falls into the bottom of the threaded countersunk hole of the hexagonal nut 2, and the lower end of the threaded tire core 3 The two legs are inserted into the T-shaped round head of the upper end of the riser of the pipeline bracket 4 in the circumferential direction, corresponding to the notch grooves of the above two legs to limit the rotational freedom of the threaded tire core 3; then the pipeline bracket 4 is connected to the pipeline Between the system pipeline ports, screw it into the threaded hole of the hexagonal nut 2 through the head thread of the pressure gauge 1. The screw of the gauge head of the pressure gauge 1 passes through the threaded hole of the hexagonal nut 2 and is fixed on the upper end face of the threaded tire core 3 to communicate with its diversion. After determining the direction of the pressure gauge 1, turn the hexagonal nut 2 with a wrench to make the lower end face of the threaded tire core 3 closely contact the T-shaped end face of the riser pipe of the pipeline bracket 4, and the screw end of the gauge head of the pressure gauge is in contact with the threaded tire core. 3. The upper end face is tightly sealed, and the threaded tire core 3 is floating and locked; when the gas or liquid medium of the system pipeline enters from the input interface P of the pipeline bracket 4, it flows out from the output interface O of the pipeline bracket 4, and the fluid medium passes through the pipeline. When the standpipe of bracket 4 is connected to the orifice at the lower end of the head screw of pressure gauge 1, the pressure of the system pipeline is consistent with the pressure flowing into pressure gauge 1, and pressure gauge 1 will display the pressure value flowing through the inflow point of the system pipeline.

Compared with the prior art, the present invention has the following beneficial effects.

Practical, fast and convenient. The present invention adopts the pipeline bracket 4 for connecting the pipeline system, the hexagonal nut 2 for connecting the pipeline bracket 4 and the observation pressure gauge, and the threaded tire core 3 with two symmetrical legs on the lower end surface. Nut 2 is installed and fastened to fast-lock the pressure gauge, which is very fast, convenient and practical. Under the combined action of the threaded tire core 3 and the hexagonal nut 2, the upper end surface of the thread of the pressure gauge 1 is in close contact with the upper end surface of the threaded tire core 3, and the lower end surface of the threaded tire core 3 is in close contact with the pipeline bracket 4. The seal obtains a stable and reliable connection and tight sealing, avoiding the defect that the meter will be loosened and leaked.

Flexible and convenient. The present invention adopts two legs at the lower end of the threaded tire core 3, which are inserted into the outer circle of the T-shaped disc at the upper end of the riser of the pipeline support 4, corresponding to the gaps of the above two legs, to limit the rotational freedom of the threaded tire core 3, which can be arbitrarily determined The direction of the pressure gauge; when the gas or liquid medium enters from the P port and flows through the lower port of the pressure gauge 1 and flows out of the O port, the pressure gauge 1 will display the pressure value flowing into the pipeline support 4, and the pressure gauge 1 can pass through the hexagonal The flexible adjustment thread of the nut 2 outer screw locks the directional pressure gauge, and the obtained pressure value and reading can be easily observed from the angle of the observation surface in the corresponding direction. It solves the problem that the orientation of the dial after the pressure gauge is tightened is uncertain, making it difficult to observe and read the gauge.

Description of drawings

FIG. 1 is a schematic view of the assembled state of the observation pressure gauge of the directional locking pipeline system of the present invention.

FIG. 2 is a plan view of FIG. 1 .

FIG. 3 is a state diagram of the pipe support 4 of the pipe system when the pressure gauge 1 and the threaded core 3 are not mounted.

FIG. 4 is a plan view taken along the line A of FIG. 3 .

In the picture: 1 pressure gauge, 2 hexagonal nut, 3 threaded tire core, 4 pipeline bracket, 5 support plate threaded hole.

Detailed ways

Referring to Figures 1 to 4, according to the present invention, a pipeline bracket 4 for connecting the pipeline system is prepared, the pipeline bracket 4 is connected with the hexagonal nut 2 for observing the pressure gauge, and a lower end surface is prepared with two symmetrical legs The threaded tire core 3; when installing the pressure gauge 1, screw the riser of the pipeline support 4 and the threaded tire core 3 into the threaded countersunk hole of the hexagonal nut 2, so that the threaded tire core 3 falls into the threaded countersunk hole of the hexagonal nut 2 and insert the two legs of the lower end of the threaded tire core 3 into the outer circle of the T-shaped disc on the upper end of the riser of the pipeline bracket 4, corresponding to the notched grooves of the two legs above, to limit the rotational freedom of the threaded tire core 3 ; Then connect the pipeline bracket 4 between the pipeline ports of the pipeline system, and then screw it into the threaded hole of the hexagonal nut 2 through the gauge head thread of the pressure gauge 1, and the screw of the gauge head of the pressure gauge 1 is fixed through the threaded hole of the hexagonal nut 2. The upper end face of the threaded tire core 3 is connected to its diversion hole; after determining the direction of the pressure gauge 1, use a wrench to turn the hexagonal nut 2 to make the lower end face of the threaded tire core 3 closely contact the T-shaped end face of the riser pipe of the pipeline bracket 4 , the screw end of the gauge head of the pressure gauge is tightly sealed with the upper end surface of the threaded tire core 3, and the threaded tire core 3 is floating and locked; when the system pipeline gas or liquid medium enters from the input port P of the pipeline support When the output port O of 4 flows out, and the fluid medium passes through the standpipe of the pipeline bracket 4 and communicates with the orifice at the lower end of the screw head of the pressure gauge 1, the pressure of the system pipeline is consistent with the pressure flowing into the pressure gauge 1, and the pressure gauge 1 will display the flow rate. The pressure value at the point of inflow through the system piping.

Since the two legs of the threaded tire core 3 are limited to the notch on the T-shaped round head at the upper end of the riser of the pipeline bracket 4, they will move relative to the axis of the hexagonal nut 2 to fit the contact surface of the connection, thereby locking the pressure gauge 1.

See Figure 3. The input interface P and the output interface O of the pipeline support 4 and the system pipeline can be sealed and connected by means of flange threads. The hexagonal nut 2 is pre-installed on the riser of the pipeline support 4, and the input interface P and the output interface O of the pipeline support 4 can be screwed or welded to the pipeline of the pipeline system. The support plate G welded on the pipeline support 4 pipeline fixes the required position of the entire pressure gauge, and the support plate G is fixed to the pipeline system through the support plate threaded hole 5 on the pipe system. piping system.

Due to the different specifications of the pressure gauges involved in the pipeline system, hexagonal nuts 2, threaded tire cores 3, and pipeline brackets 4 of different lengths and specifications can be made according to their different pressure gauge connection thread sizes to adapt to the installation of different pressure gauges. need;

To make the seal more reliable. The threaded tire core 3 can be made of annealed red copper or sprayed on the upper and lower end surfaces of the threaded tire core 3, so that the sealing will be more secure and reliable after the connection is locked.

The above content is a further detailed description of the present invention in conjunction with the specific preferred embodiments, and it cannot be considered that the specific embodiments of the present invention are limited to this. Several simple deductions or substitutions made below should be regarded as belonging to the scope of patent protection of the present invention determined by the submitted claims.

Claims (7)

1. a method for directional locking pipeline system observation pressure gauge, is characterized in that, comprises the steps: Prepare a pipeline bracket (4) for connecting the pipeline system, connect the pipeline bracket (4) and the hexagonal nut (2) for observing the pressure gauge, and prepare a threaded tire core ( 3); When installing the pressure gauge (1), screw the riser of the pipeline bracket (4) and the threaded core (3) into the threaded countersunk hole of the hexagonal nut (2), so that the threaded core (3) falls off. into the bottom of the threaded countersunk hole of the hexagonal nut (2), and insert the two legs at the lower end of the threaded tire core (3) into the pipe bracket (4) in the circumferential direction of the T-shaped round head at the upper end of the riser, corresponding to the notched grooves of the above two legs In order to limit the rotational freedom of the threaded tire core (3); then connect the pipeline bracket (4) between the pipeline ports of the pipeline system, and then screw the hexagonal nut ( 2) In the threaded hole, the head screw of the pressure gauge (1) passes through the threaded hole of the hexagonal nut (2), and is fixed on the upper end face of the threaded tire core (3) to communicate with its diversion hole; after determining the direction of the pressure gauge (1), Rotate the hexagonal nut (2) with a wrench so that the lower end face of the threaded tire core (3) is in close contact with the T-shaped end face of the riser pipe of the pipeline bracket (4), and the screw end of the gauge head of the pressure gauge is on the threaded tire core (3). The end face is tightly sealed, and the threaded tire core (3) is floating and locked; when the gas or liquid medium of the system pipeline enters from the input interface P of the pipeline bracket (4), and flows out from the output interface O of the pipeline bracket (4), the fluid When the medium passes through the standpipe of the pipeline bracket (4) and is connected to the orifice at the lower end of the screw head of the pressure gauge (1), the pressure of the system pipeline is consistent with the pressure flowing into the pressure gauge (1), and the pressure gauge (1) will display the flow rate. The pressure value at the point of inflow through the system piping. 2. The method for observing the pressure gauge of the directional locking pipeline system as claimed in claim 1, wherein the two legs of the threaded tire core (3) are limited to the T-shaped round head on the upper end of the riser of the pipeline bracket (4). The upper notch will move relative to the axis of the hexagonal nut (2) to fit the contact surface of the connection, thereby locking the pressure gauge (1). 3. The method for directional locking pipeline system observation pressure gauge as claimed in claim 1, it is characterized in that, the input interface P of pipeline support (4), output interface O and system pipeline are sealed by flange thread mode link. 4. The method for observing the pressure gauge of the directional locking pipeline system according to claim 1, wherein the hexagonal nut (2) is pre-installed on the riser of the pipeline support (4), and the pipeline support (4) The input port P and the output port O are fixed on the pipeline of the pipeline system by screw connection or welding. 5. The method for observing a pressure gauge in a directional locking pipeline system according to claim 1, wherein the support plate G welded on the pipeline of the pipeline bracket (4) fixes the required position of the entire pressure gauge. 6. The method for observing the pressure gauge of the directional locking pipeline system as claimed in claim 5, it is characterized in that the support plate G is fixed on the pipeline system through the support plate threaded hole (5) on it and needs to observe the pressure gauge (1) position to ensure that it is incorporated into the piping system as a unit. 7 . The method for observing a pressure gauge in a directional locking pipeline system as claimed in claim 1 , wherein the threaded tire core ( 3 ) adopts annealed red copper or the upper and lower ends of the threaded tire core ( 3 ) are sprayed with plastic. 8 .

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