CN219200706U

CN219200706U - Output switching mechanism for pressure gauge verification

Info

Publication number: CN219200706U
Application number: CN202223166064.8U
Authority: CN
Inventors: 张磊; 曹伟
Original assignee: Tianjin Hebei Metrological Verification Institute
Current assignee: Tianjin Hebei Metrological Verification Institute
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-06-16
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses an output switching mechanism for pressure gauge verification, which comprises an output head, an output pipeline, an M20 output end, an M10 output end, a diaphragm output end, an M14 output end, a blocking head and a hexagonal sealing sleeve, wherein the output head is connected with the output pipeline; wherein a plurality of output ends are arranged on the output pipeline, and the hexagonal sealing sleeve is connected with the output ends for sealing; the blocking head is used for blocking the output end of the output pipeline port which is not used for detection. According to the utility model, the single-point output of the output pipeline from the original structure is changed into the multi-point output, so that the verification efficiency is improved; the output ends with a plurality of specifications are arranged, so that the verification range is expanded; the hexagonal sealing sleeve is used as a sealing structure, so that the sealing capability is improved, and the vulnerable part is easy to replace.

Description

Output switching mechanism for pressure gauge verification

Technical Field

The utility model relates to the technical field of metering verification equipment, in particular to an output switching mechanism which is used for pressure gauge verification and is arranged on a pressure gauge verification device.

Background

The pressure gauge calibrating device is used for calibrating the accuracy, the precision and the precision of various general pressure gauges and oxygen pressure gauges, is used for first calibration in the use process of the pressure gauges and calibration in the use process, and an output mechanism of the pressure gauge calibrating device is used for being installed with a pressure gauge to be detected, and is required to ensure sealing, stability and certain mechanical strength after being installed and is used for resisting the detection pressure.

The output switching mechanism of the existing pressure gauge calibrating device is generally connected with an output pipeline of the pressure gauge calibrating device through a connector, one end of the connector is connected with the pressure gauge, the other end of the connector is connected with the pipeline, a water material belt is required to be wound at a connecting thread of the pressure gauge for sealing during installation, the operation is difficult, the water material belt is easy to break, and broken fine scraps can return along with pressure oil or water for calibration, so that the pipeline is easy to be blocked; in addition, the existing adapter can only detect the pressure gauge with one connection specification at a time, the detection efficiency is low, if the pressure gauge with various specifications is detected, the adapter needs to be replaced frequently, the operation is complex, the original pipeline threads are easy to wear, and the replacement of accessories is expensive.

Disclosure of Invention

The utility model aims to provide an output switching mechanism for pressure gauge verification, which is used for solving the problems that the existing pressure gauge verification is difficult to install and operate, has pipeline blockage risks, has low verification efficiency and needs frequent replacement of an adapter.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an output switching mechanism for manometer verification, output switching mechanism include output head and with the output pipeline that the output head is connected, the output pipeline includes two non-detection ends and a plurality of end output, the shutoff head is installed respectively to two non-detection ends of output pipeline, M20 output, M10 output, diaphragm output or M14 output are installed to the end output, M20 output, M10 output, diaphragm output and M14 output with carry out screw tightening through hexagonal seal sleeve after the end output is installed and seal, hexagonal seal sleeve's outer lane sets up to hexagonal structure, internally mounted has sealing rubber pad.

As the preferable scheme, output head bottom carries out mechanical seal with manometer calibrating installation and is connected, set up the internal thread in the upper end round hole of output head with the output pipeline carries out sealed threaded connection through winding water material area.

Preferably, the output ends of the end heads are all provided with external threads.

As the preferable scheme, the plugging head is provided with internal threads, one end of the outer side is of a hexagonal structure, and the plugging head is in sealing connection with external threads of two non-detection ends of the output pipeline.

As a preferable scheme, the M20 output end, the M10 output end, the diaphragm output end and the M14 output end are respectively provided with internal threads and external threads at the cylinder end, and are in threaded fit with the end output end.

As a preferable scheme, the installation positions of the M20 output end, the M10 output end, the diaphragm output end and the M14 output end can be adjusted according to actual needs.

Preferably, the output pipeline is provided with an M14 output end at a 90-degree corner.

As a preferable scheme, the output pipeline is provided with an M14 output end at a 90-degree corner, and can be replaced by an M20 output end or an M10 output end according to actual verification requirements.

The M20 output end, the M10 output end, the diaphragm output end and the M14 output end are all provided with hexagonal structures, and can be screwed and installed through a spanner.

As the preferable scheme, hexagonal seal sleeve, outer lane design hexagonal structure, internally mounted have sealed cushion.

The utility model has the beneficial effects that after the structure is adopted: the specification model of the output head can be designed according to the output interface specifications of different pressure gauge calibrating devices, so as to cover various pressure gauge calibrating devices, solve the problem of frequent replacement of the adapter, and install various pressure gauges or multiple pressure gauges with the same specification at one time, thereby improving the calibrating efficiency; the hexagonal sealing sleeve is internally provided with the sealing rubber cushion, so that a sealing ring or a winding water material belt is not required to be manually arranged when the adapter is installed, and the installation efficiency is improved; the sealing rubber pad is used for solving the problems that residues in the water material fall into the pipeline and the pipeline is blocked, the output pipeline can be integrally formed by using aluminum alloy or PA66 material, and the joint is made of aluminum alloy or stainless steel, so that the weight of the whole pipeline is reduced, and the portability and the carrying capacity are improved;

1. the sealing plug is arranged, is made of aluminum alloy, and is used for being in threaded fastening connection with the detection port, so that the sealing strength is ensured, and the disassembly times are reduced;

2. the M20 output end, the M10 output end, the diaphragm output end and the M14 output end are arranged, so that the pressure gauge installation of various specifications can be covered at one time, the working efficiency is improved, and the verification range is expanded;

3. the hexagonal sealing sleeve is arranged, the threaded sealing is changed into sealing rubber gasket sealing by the hexagonal sealing sleeve, the sealing strength is improved, the sealing rubber gasket can be produced in batches through die sinking, and the cost is reduced.

Drawings

Fig. 1 is a schematic diagram of a general assembly structure of an output switching mechanism provided by the utility model;

FIG. 2 is a cross-sectional view of a hex seal sleeve according to the present utility model;

FIG. 3 is a schematic view of the appearance of a hexagonal sealing sleeve according to the present utility model;

fig. 4 is a schematic structural diagram of an output switching mechanism mounting blocking head according to the present utility model;

fig. 5 is a schematic structural diagram of an output end of an output switching mechanism installed M14 according to the present utility model;

fig. 6 is an exploded schematic view of the output switching mechanism provided by the present utility model.

In the figure: 1. an output head; 2. an output line; 3. an end output; 4. a blocking head; 5. an M20 output terminal; 6. a hexagonal sealing sleeve; 7. an M10 output terminal; 8. a diaphragm output; 9. an M14 output terminal; 10. and (5) sealing the rubber cushion.

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.

Unless the directions indicated by the individual definitions are defined, the directions of up, down, left, right, front, rear, etc. referred to herein are all directions of up, down, left, right, front, rear, etc. in the drawings shown in the present utility model, and are described herein together.

As shown in fig. 1, 2 and 5, the present embodiment provides an output switching mechanism for calibrating a pressure gauge, where the output switching mechanism includes an output head 1 and an output pipeline 2 screwed with the output head 1, the output pipeline 2 includes four end output ends 3, the output pipeline 2 has two non-detection ends, the two non-detection ends are both provided with plugs 4, the four end output ends 3 are respectively installed with an M20 output end 5, an M10 output end 7, a diaphragm output end 8 and an M14 output end 9, and after the M20 output end 5, the M10 output end 7, the diaphragm output end 8 and the M14 output end 9 are installed, screwed tight and sealed by a hexagonal sealing sleeve 6. The specification model of the output head can be designed according to the output interface specifications of different pressure gauge calibrating devices, and the pressure gauge calibrating devices of various types are covered, so that the problem of frequent replacement of the adapter is solved, and the pressure gauges of various specifications or the pressure gauges of the same specification are installed at one time, so that the calibrating efficiency is improved.

In the scheme, the output pipeline 2 is a pipeline which is made of PA66 material and is integrally formed or made of aluminum alloy and has corresponding mechanical strength. A threaded connection structure can be rotated at the joint part of the output pipeline 2 and the output head 1; the joint part of the pipeline joint 2 and the output head 1 can also adopt a plug joint form commonly used by a thermal management system in the automobile industry; the two pipeline connection modes are all in the prior art, and can realize the work under severe environments such as good sealing, vibration and the like.

As a preferred scheme, the bottom end of the output head 1 is mechanically connected with the pressure gauge calibrating device in a sealing way, the connection form and the specification are designed according to the output ends of different pressure gauge calibrating devices, the output head 1 is made of aluminum alloy 5052, and the output head 1 can be designed into a general M14 thread installation specification preferentially; the internal thread is arranged in the round hole at the upper end and is in sealing threaded connection with the output pipeline 2 through threaded connection, and steel wire threaded sleeves with corresponding specifications can be placed inside the round hole, so that abrasion of related matching parts is reduced.

As shown in fig. 1, the two non-detection ends and the four end output ends 3 of the output pipeline 2 are provided with external threads, and the specifications of the external threads are unified to be m12×1.

As a preferred scheme, the plugging head 4 is provided with internal threads, one end of the outer side is of a hexagonal structure, and the plugging head is installed at two non-detection end heads of the output pipeline 2 and is screwed down through a hexagonal wrench matched with the hexagonal structure during installation.

In one embodiment, as shown in fig. 1, the M20 output end 5, the M10 output end 7, the diaphragm output end 8 and the M14 output end 9 are provided with internal threads and external threads at the cylinder end, and are mounted with the end output end 3 in a threaded fit manner, and the mounting positions are shown in fig. 1.

In one embodiment, as shown in fig. 4, when the manometer verification device is deactivated or in a sealed state for a long time, a sealing head may be installed at the output ends 3 of the plurality of detecting ends, so as to avoid impurities entering the device when the manometer verification device is externally arranged for a long time.

In one embodiment, as shown in fig. 5, when the manometer calibrating device is used to calibrate a large number of manometers with the same specification in cooperation with the output switching mechanism, when the standard of the calibrating joint of the manometer is M14, as shown in fig. 4, all the detecting end output ends 3 can be installed as M14 output ends 9, which can be used to calibrate a plurality of manometers with the same specification at one time, thereby improving the calibrating efficiency.

The output end 9 of M14 in the above embodiment may be replaced by the output end 5 of M20, the output end 7 of M10 or the output end 8 of the diaphragm.

As a preferable scheme, as shown in fig. 6, the output pipeline 2 is provided with a port output end which is bent by 90 degrees and has the output direction of other port output ends not in a plane, and the port output end can be used for verifying a pressure gauge with the joint axial direction perpendicular to the dial of the pressure gauge; here, the M20 output 5, the M10 output 7, the diaphragm output 8 or the M14 output 9 can be installed corresponding to the gauge specification.

Preferably, the M20 output end 5, the M10 output end 7, the diaphragm output end 8 and the M14 output end 9 all have hexagonal structures for screwing installation.

As a preferable scheme, as shown in fig. 2 and 3, the hexagonal sealing sleeve 6 is designed with a hexagonal structure on the outer ring, a sealing rubber pad 10 is arranged in the hexagonal sealing sleeve, an internal thread is arranged at one end of the hexagonal sealing sleeve, one end of the hexagonal sealing sleeve is a smooth cylinder, and the inner diameter of the cylinder is between the inner ring and the outer ring of the sealing rubber pad 10, so that the sealing rubber pad can be embedded in the cylinder of the hexagonal sealing sleeve 6 and cannot slide out; the internal thread part of hexagonal seal sleeve 6 is used for with corresponding M20 output 5, M10 output 7, diaphragm output 8 and the lower extreme external screw thread cooperation of M14 output 9 during the installation, makes sealed cushion 10 produce the deformation through the extrusion during the installation, reaches sealed effect, and sealed cushion can be changed according to the frequency of use, has reduced the use of water material area, avoids water material area residue to block up the pipeline risk.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides an output changeover mechanism for manometer verification, its characterized in that, output changeover mechanism include output head (1) and with output pipeline (2) that output head (1) are connected, output pipeline (2) include two non-detection ends and a plurality of end output (3), shutoff head (4) are installed respectively to two non-detection ends of output pipeline (2), M20 output (5), M10 output (7), diaphragm output (8) or M14 output (9) are installed to end output (3), M20 output (5), M10 output (7), diaphragm output (8) and M14 output (9) with screw thread tightening seals through hexagonal seal sleeve (6) after the installation of end output (3), the outer lane of hexagonal seal sleeve (6) sets up to hexagonal structure, internally mounted has sealed cushion (10).

2. The output switching mechanism for pressure gauge verification according to claim 1, wherein the bottom end of the output head (1) is in mechanical seal connection with the pressure gauge verification device, and an internal thread is arranged in a round hole at the upper end of the output head (1) and is in seal thread connection with the output pipeline (2) through winding a water material belt.

3. An output-switching mechanism for manometer verification according to claim 1, characterized in that the tip outputs (3) are all externally threaded.

4. The output switching mechanism for pressure gauge verification according to claim 1, wherein the plugging head (4) is provided with internal threads, one end of the outer side is of a hexagonal structure, and the plugging head (4) is in sealing connection with external threads of two non-detection ends of the output pipeline (2).

5. An output switching mechanism for pressure gauge verification according to claim 1, wherein the M20 output end (5), the M10 output end (7), the diaphragm output end (8) and the M14 output end (9) are provided with internal threads and external threads at the cylinder end, and are mounted in threaded fit with the end output end (3).

6. An output-switching mechanism for manometer verification according to claim 1, characterized in that the output line (2) is fitted with an M14 output (9) at a 90 degree corner.

7. An output switching mechanism for pressure gauge verification according to claim 1, wherein the M20 output (5), the M10 output (7), the diaphragm output (8) and the M14 output (9) are each provided with a hexagonal structure, which can be screwed down by means of a wrench.