Pressure gauge sealing device
Technical Field
The utility model relates to the technical field of pressure gauge sealing devices, in particular to a pressure gauge sealing device.
Background
The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, is extremely common in application, almost extends to all industrial processes and scientific research fields, and is widely visible in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance factories, shops and the like.
The sealing device of the pressure gauge comprises a connecting pipe, a mounting pipe, a fastening sleeve and a sealing assembly, wherein a limiting baffle ring is arranged on the outer peripheral side of the connecting pipe, a first external thread structure is arranged on the outer peripheral side of the mounting pipe, the fastening sleeve is sleeved outside the connecting pipe and the limiting baffle ring, an internal thread structure matched with the first external thread structure of the mounting pipe is arranged on the inner side wall of the fastening sleeve, the fastening sleeve is connected with the mounting pipe through threads, a compression ring is arranged on the top of the fastening sleeve, the bottom of the compression ring is abutted against the limiting baffle ring, the sealing assembly is arranged between the mounting pipe and the limiting baffle ring, the sealing assembly comprises a sealing ring and an adjusting ring, the thickness of the adjusting ring is gradually reduced from one end to the other end, the pressure gauge sealing device can be installed on the inclined mounting pipe, the pressure gauge can be kept vertical, the tightness of an interface position is ensured, the accuracy of later use of the pressure gauge is ensured, and the reliability of the pressure gauge is improved.
In the above, when the pressure gauge is sealed, the interface sealing is adopted, the application is also to seal the interface, the sealing mode is assembled with the threaded connection and the limiting baffle ring, water leakage occurs on the surface, but the connection is limited by a complicated structure, and the butt joint with simplicity is finally selected to be used in the design and use.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides a pressure gauge sealing device.
In order to achieve the purpose, the pressure gauge sealing device comprises a first connecting pipe, wherein a three-way pipe is arranged at one end of the first connecting pipe, a valve body is fixedly communicated with one end of the three-way pipe, a second connecting pipe is fixedly communicated with one end of the valve body, a valve is arranged at the upper part of the valve body, a through pipe is fixedly communicated with a liquid outlet part of the three-way pipe, a second connecting part is arranged at the top end of the through pipe, a first connecting part is arranged at the upper part of the second connecting part, a first connecting cap is connected with a first connecting part through a thread, a dial plate is fixedly communicated with the top end of the first connecting cap, a meter body is fixedly communicated with the top of the dial plate, and a dial plate is arranged at the display part of the meter body.
As a further description of the above technical solution:
The second connecting part comprises a first connecting cap, the top end of a through pipe at one end of the first connecting cap is fixedly connected, and one end of the first connecting cap is fixedly connected with a first threaded water pipe.
As a further description of the above technical solution:
The outer wall thread of the first threaded water pipe is connected with a threaded pipe, a seat is fixedly connected to the upper portion of the outer wall of the threaded pipe, and a pipe guide hole is fixedly connected to the axial center portion of the threaded pipe.
As a further description of the above technical solution:
the lower part of the outer wall of the threaded pipe is fixedly connected with a side block, and the upper part of the side block is provided with a socket.
As a further description of the above technical solution:
The first connecting part comprises a second connecting cap, the bottom of the second connecting cap is in threaded connection with a second threaded water pipe, and the outer wall of the second threaded water pipe is in threaded connection with a spread disc.
As a further description of the above technical solution:
The outer wall left and right sides of the expansion disc are all fixedly connected with side blocks, and the bottom of the side blocks is welded with a bolt.
As a further description of the above technical solution:
The center part of the expansion disc is fixedly connected with a through cap, and the through cap is positioned between the two groups of side blocks.
The utility model has the following beneficial effects:
1. Compared with the prior art, the pressure gauge sealing device has the advantages that liquid is led into the valve body through the second connecting pipe, enters the three-way pipe through the valve body, is led into the through pipe connected with the three-way pipe, enters the second connecting cap again, is in threaded communication between the second connecting cap and the threaded water pipe, and is led into the through cap for guiding out the liquid.
2. Compared with the prior art, the pressure gauge sealing device has the advantages that the guide pipe holes at one end of the through cap and the front end of the connecting part II are also in threaded connection, the front end of the connecting mode is in plug connection, the rear end of the connecting mode is in threaded connection, so that liquid enters the threaded water pipe I through the guide pipe hole, is led into the connecting cap II through the connecting cap I connected with the threaded water pipe I, is led into the dial plate through the connecting cap II and enters the meter body, and is used for pressure measurement.
Drawings
FIG. 1 is a schematic diagram of a pressure gauge sealing device according to the present utility model;
FIG. 2 is an enlarged schematic view of the sealing device of the pressure gauge of FIG. 1;
FIG. 3 is a schematic structural view of a first connecting portion of a sealing device of a pressure gauge according to the present utility model;
fig. 4 is a schematic structural diagram of a second connection portion of the sealing device of the pressure gauge according to the present utility model.
Legend description:
The valve comprises a first connecting pipe 1, a tee pipe 2, a valve 3, a valve body 4, a second connecting pipe 5, a meter 6, a dial 7, a first connecting cap 8, a first connecting part 9, a second connecting part 10, a through pipe 11, a threaded pipe 12, a connecting seat 13, a pipe hole 14, a side block 15, a socket 16, a first threaded water pipe 17, a second connecting cap 18, a side block 19, a plug pin 20, a expansion disc 21, a second threaded water pipe 22 and a through cap 23.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a pressure gauge sealing device: comprises a connecting pipe I1, a three-way pipe 2 is arranged at one end of the connecting pipe I1, a valve body 4 is fixedly communicated with one end of the three-way pipe 2, a connecting pipe II 5 is fixedly communicated with one end of the valve body 4, a valve 3 is arranged at the upper part of the valve body 4, a through pipe 11 is fixedly communicated with the liquid outlet part of the three-way pipe 2, a connecting part II 10 is arranged at the top end of the through pipe 11, a connecting part I9 is arranged at the upper part of the connecting part II 10, a connecting cap I8 is connected with the top end thread of the connecting part I9, a dial 7 is fixedly communicated with the top end of the connecting cap I8, a meter body 6 is fixedly communicated with the top of the dial 7, a dial 7 is arranged at the display part of the meter body 6, the connecting part II 10 comprises a connecting cap I8, the top end of the through pipe 11 at one end of the connecting cap I8 is fixedly connected with a threaded water pipe I17, the outer wall of the threaded water pipe I17 is in threaded connection with the threaded pipe 12, the upper part of the outer wall of the threaded pipe 12 is fixedly connected with the connecting seat 13, the axial center part of the threaded pipe 12 is fixedly connected with the conduit hole 14, liquid is led into the valve body 4 through the connecting pipe II 5, enters the three-way pipe 2 through the valve body 4 and is led into the through pipe 11 connected with the three-way pipe 2, the liquid entering the through pipe 11 enters the connecting cap II 18 again, the connecting cap II 18 is in threaded communication with the threaded water pipe II 22, and thus the liquid enters the through cap 23, one end of the through cap 23 and the conduit hole 14 at the front end of the connecting part II 10 are in threaded connection, the front end of the connecting mode is in plug connection, and the rear end of the connecting mode is in threaded connection for stable butt joint of the pipe and the pipe.
Referring to fig. 3-4, a side block 15 is fixedly connected to the lower portion of the outer wall of the threaded pipe 12, a socket 16 is formed in the upper portion of the side block 15, the first connecting portion 9 comprises a second connecting cap 18, a threaded water pipe 22 is connected to the bottom of the second connecting cap 18 in a threaded mode, a spreading disc 21 is connected to the outer wall of the threaded water pipe 22 in a threaded mode, side blocks 19 are fixedly connected to the left side and the right side of the outer wall of the spreading disc 21, a plug pin 20 is welded to the bottom end of the side block 19, a through cap 23 is fixedly connected to the center portion of the spreading disc 21, the through cap 23 is located between the two groups of side blocks 19, liquid enters the first threaded water pipe 17 through a pipe hole 14, is guided into the second connecting cap 18 through the first connecting cap 8 connected with the threaded water pipe 17, is guided into the dial 7 through the second connecting cap 18 and enters the meter body 6 for pressure measurement.
When the pressure measuring device is used, liquid is led into the valve body 4 through the connecting pipe II 5, enters the three-way pipe 2 through the valve body 4, is led into the through pipe 11 connected with the three-way pipe 2, enters the connecting cap II 18 again through the through pipe 11, is in threaded communication between the connecting cap II 18 and the threaded water pipe II 22, and accordingly enters the through cap 23, one end of the through cap 23 is in threaded connection with the pipe hole 14 at the front end of the connecting part II 10, the front end of the connecting mode is in plugging connection, the rear end of the connecting mode is in threaded connection, and accordingly the liquid enters the threaded water pipe I17 through the pipe hole 14, is led into the connecting cap II 18 through the connecting cap II 18 connected with the threaded water pipe I17, is led into the dial 7 through the connecting cap II 18 and enters the meter body 6, and is used for pressure measurement.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.