CN211042619U

CN211042619U - Pipe sealing test tool

Info

Publication number: CN211042619U
Application number: CN201921210483.2U
Authority: CN
Inventors: 刘海勇; 完颜宝领
Original assignee: Nanjing Automobile Group Corp; SAIC Maxus Vehicle Co Ltd Nanjing Branch
Current assignee: Nanjing Automobile Group Corp; SAIC Maxus Vehicle Co Ltd Nanjing Branch
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-07-17
Anticipated expiration: 2029-07-30

Abstract

The utility model relates to a sealed experimental frock of tube, the movable interface that is connected including the closed tube body of three-way type and each port of closed tube body, the port of the same kind of closed tube body disposes the manometer movable interface of being connected with the manometer, and two tunnel ports dispose respectively along the inside fluid direction of pipeline in addition with the entrance point movable interface and the exit end movable interface of being connected with the equipment that awaits measuring, and each movable interface all cup joints the frock of each port of closed tube body and serves, movable interface is along the axial rotation of frock end. The utility model discloses the pipe part capability test before the realization dress, the influence of elimination equipment system to the test result makes the experimental data more accurate. The structure is simple, the working reliability is high, and the cost is low. Utilize the utility model discloses the device can be verified pipe type performance test equipment, effectively provides reliable foundation for car pipe type performance test detects.

Description

Pipe sealing test tool

Technical Field

The utility model relates to an experimental frock, specific experimental frock of leakproofness for testing car pipe part that says so belongs to the experimental technical field of automobile parts.

Background

The pipe parts are important components of modern automobiles, and the performance of the pipe parts affects the driving safety; the effective safety performance index detection of the pipe parts is the basis for ensuring the safety of the automobile; the metrological verification period of the pipe detection equipment is usually one year, the current domestic pipe test system usually adopts a test environment built by a proportional valve, a sensor and a controller, and the precision of the test system is influenced by the manufacturing process of the test system, the stability of control software and the like, so that the stability, consistency and fluctuation of a test result are large; the pipe detection equipment needs to be equipped with such tools to ensure the test result.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide a rational in infrastructure, simple to operate, the test data precision is high, safe and reliable's sealed experimental frock of pipe type.

In order to solve the technical problem, the utility model provides a sealed experimental frock of pipe type, the movable interface that is connected including the closed tube body of three-way type and each port of closed tube body, the port of the same kind of closed tube body disposes the manometer movable interface of being connected with the manometer, and two tunnel ports dispose respectively along the inside fluid direction of pipeline with the entrance point movable interface and the exit end movable interface that are connected of the equipment that awaits measuring in addition, and each movable interface all cup joints and serves in the frock of each port of closed tube body, movable interface is along the axial rotation of frock end.

The utility model discloses the technical scheme who further injects is: the movable interface comprises an outer nut capable of axially rotating along the tool end, the outer nut is combined with the tool end into a whole and is connected with the equipment end through an internal thread on the inner wall of the outer nut, and a sealing ring is further placed between the tool end and the equipment end.

Further, the frock end is including the terminal arch that is the frustum formula of frock end body and frock end body that is the cylinder type, the bellied reason of going up is laminated mutually with the inner wall of cap nut, is clearance fit, bellied lower edge is equipped with the semicircular groove that is used for placing the sealing washer along the inside circumference symmetry of frustum.

Furthermore, the diameter of the upper edge of the protrusion is larger than that of the tool end body by 1.2 times, and the extension line of the diameter of the semicircular groove coincides with the outer side edge of the upper edge of the protrusion.

Furthermore, a gap which is convenient for the outer sleeve nut to move axially and rotate radially in the protrusion is formed between the outer edge of the protrusion and the outer sleeve nut.

Furthermore, the grooves are distributed in steps at equal intervals and are at least 1.

Further, inside the equipment end was fixed in the outer-sleeve nut, was the columniform second part with frock end matched with first part and first part rear and constitutes, the tip of first part have with the recess assorted fluting of frock end, the recess constitutes a circular trompil jointly with the fluting and is used for placing the sealing washer, have on its outer wall with outer-sleeve nut matched with external screw thread, two threaded connection.

Furthermore, an end cap is designed according to the actual installation size of the precision pressure gauge to replace the precision pressure gauge, so that the disassembly tool can be reduced, and the service life of the precision pressure gauge can be prolonged.

The utility model has the advantages that: the utility model provides a sealed experimental frock of pipe class realizes the loading front tube class part capability test, eliminates the influence of equipment system to the test result, makes experimental data more accurate. The structure is simple, the working reliability is high, and the cost is low. Utilize the utility model discloses the device can be verified pipe type performance test equipment (pipe type tests such as airtight performance, negative pressure performance, coefficient of expansion, bursting test), effectively provides reliable foundation for the experimental detection of car pipe type performance. On the basis of fully considering the development cost of parts, the requirement of firm part installation is met, the method is particularly suitable for the processing requirements of small-batch and multiple varieties, and the market requirement of the work needing to be developed can be met.

Drawings

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

Fig. 2 is a schematic structural diagram of the movable interface of the present invention.

Fig. 3 is a cross-sectional view of fig. 3.

Fig. 4 is the installation schematic diagram of the tool end and the outer nut of the present invention.

Fig. 5 is a cross-sectional view of fig. 4.

Detailed Description

Examples

The pipe sealing test tool provided by the embodiment can ensure that the test result of the pipe part is effective, and the test result is true and effective by adding a standard device in the test system environment for comparison; the product defects are found at an early stage, and the personnel injury and the vehicle loss are avoided.

The structure is as shown in the figure: the utility model provides a sealed experimental frock of pipe, includes the closed tube body of three-way type and the movable interface that is connected with each port of closed tube body, closed tube body's a kind of port disposes the manometer movable interface A who is connected with the manometer, and two other ways of ports dispose respectively along the inside fluid direction of pipeline with the entrance point movable interface B and the exit end movable interface C of being connected with the equipment that awaits measuring, and each movable interface all cup joints on the frock of closed tube body each port is served, movable interface rotates along frock end axial.

Wherein, activity interface frock end 1, outer nut 2 and equipment end 3, outer nut can follow frock end axial rotation to combine as an organic wholely with the frock end, frock end and outer nut pass through threaded connection with the equipment end, and the sealing washer 4 is put and is closely sealed in the recess pressure of frock end, prevents to leak during the measurement. The utility model discloses can make according to the difference of equipment to enlarge practical scene.

The tool end comprises a cylindrical tool end body and a frustum-shaped bulge at the tail end of the tool end body, and the upper edge of the bulge is attached to the inner wall of the outer sleeve nut and is in clearance fit with the inner wall of the outer sleeve nut. And semicircular grooves 5 for placing sealing rings are symmetrically arranged on the lower edge of the bulge along the circumferential direction of the inner part of the frustum. A gap which is convenient for the outer sleeve nut to move axially and rotate radially in the bulge is arranged between the outer edge of the bulge and the outer sleeve nut.

Meanwhile, the diameter of the upper edge of the protrusion is larger than that of the tool end body by 1.2 times, and the extension line of the diameter of the semicircular groove coincides with the outer side of the upper edge of the protrusion. The grooves are distributed in steps at equal intervals and are at least 1.

And inside the equipment end was fixed in the outer-sleeve nut, be columniform second part with frock end matched with first part and first part rear and constitute, the tip of first part have with the recess assorted fluting of frock end, the recess constitutes a circular trompil jointly with the fluting and is used for placing the sealing washer, have on its outer wall with outer-sleeve nut matched with external screw thread 6, two threaded connection.

When the device is used, a pipe type test environment is accessed through the movable joint of the communicating pipe, measuring equipment with corresponding measuring ranges is installed, and rubber sealing rings are installed at all connecting parts to avoid leakage; the pressure value displayed by the precision pressure gauge is the actually measured pressure of the system, and the actually measured pressure is compared with the software display pressure, and if the actually measured pressure is consistent with the software display pressure, the test is effective; if the system fault is inconsistent, the system fault needs to be checked; a direction precision pressure gauge, a proportional valve and control software are checked; and testing can be carried out if the pressure values displayed by the software to be controlled and the pressure gauge are consistent.

As most of test equipment has limited space in the test bin, the communicating pipe joint needs to be made into a movable internal thread interface, so that the disassembly and the assembly are convenient; the size of the internal thread of the joint can be determined according to the actual size of the thread of the measuring equipment and the size of the joint of the testing system, and the sealing performance is ensured by the sealing ring; because precision measurement equipment damages more easily under extreme condition, so can be before the test at every turn system pressure under the calibration, the back dismouting end cap can improve precision pressure gauge's life, improves work efficiency. The device is convenient to install, the reliability of the test result is guaranteed to the greatest extent in the test process, the working efficiency is improved, the validity of the test result is guaranteed, and the device is high in universality.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a sealed experimental frock of pipe type, includes the closed tube body of three-way type and the activity interface that is connected with each port of closed tube body, its characterized in that: the utility model discloses a test device, including closed tube body, tool end, movable interface, the tool end that the port of one kind of closed tube body disposes the manometer activity interface of being connected with the manometer, and two other ways of ports dispose respectively along the inside fluid direction of pipeline with the entrance point activity interface and the exit end activity interface of being connected with the equipment that awaits measuring, each activity interface all cup joints on the tool end of each port of closed tube body, the activity interface is along the axial rotation of.

2. The pipe sealing test tool according to claim 1, characterized in that: the movable interface comprises an outer nut capable of axially rotating along the tool end, the outer nut is combined with the tool end into a whole and is connected with the equipment end through an internal thread on the inner wall of the outer nut, and a sealing ring is further placed between the tool end and the equipment end.

3. The pipe sealing test tool according to claim 2, characterized in that: the frock end is including the terminal arch that is the frustum formula of frock end body and frock end body that is the cylinder type, the bellied reason of going up is laminated mutually with outer nut's inner wall, is clearance fit, bellied lower edge is equipped with the semicircular groove that is used for placing the sealing washer along the inside circumference symmetry of frustum.

4. The pipe sealing test tool according to claim 3, wherein: the diameter of the upper protruding edge is larger than that of the tool end body by 1.2 times, and the extension line of the diameter of the semicircular groove coincides with the outer side edge of the upper protruding edge.

5. The pipe sealing test tool according to claim 3, wherein: a gap which is convenient for the outer sleeve nut to move axially and rotate radially in the bulge is arranged between the outer edge of the bulge and the outer sleeve nut.

6. The pipe sealing test tool according to claim 3, wherein: the grooves are distributed in steps at equal intervals and are at least 1.

7. The pipe sealing test tool according to claim 3, wherein: inside the equipment end was by being fixed in the overcoat nut, was the columniform second part with frock end matched with first part and first part rear and constitutes, the tip of first part have with the recess assorted fluting of frock end, the recess constitutes a circular trompil jointly with the fluting and is used for placing the sealing washer, have on its outer wall with overcoat nut matched with external screw thread, two threaded connection.

8. The pipe sealing test tool according to claim 1, characterized in that: an end cap is designed according to the actual installation size of the precision pressure gauge and used for replacing the precision pressure gauge, so that the disassembly tool is reduced, and the service life of the precision pressure gauge is prolonged.