CN211651964U

CN211651964U - Pressure test tool

Info

Publication number: CN211651964U
Application number: CN202020584377.7U
Authority: CN
Inventors: 刘雪生; 梁邦壮
Original assignee: Shandong Yicheng Vacuum Technology Co ltd
Current assignee: Shandong Yicheng Vacuum Technology Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-10-09
Anticipated expiration: 2030-04-20

Abstract

The technical scheme of the utility model discloses a pressure test tool, which comprises a lower backing plate component, a sealing rubber bar, an upper backing plate, a backing ring, a rotating pad, a butterfly nut and a quick connector, wherein the lower backing plate component is a base body of the whole device and is formed by a bolt with a screw passing through the lower backing plate component, and a test medium channel is arranged at the center of the bolt; the sealing rubber rod, the upper backing plate, the backing ring and the rotating pad are sequentially sleeved on the screw rod, the butterfly nut is screwed on the screw rod, and the quick connector is installed at the internal thread at the tail part of the test medium channel through threads. The utility model discloses a lower bolster is constituteed, is sealed gluey excellent, backing ring and butterfly nut etc. and mutually supports, realizes sealing and the pressure test to the product pipeline that only has an external tapping.

Description

Pressure test tool

Technical Field

The utility model belongs to the pressure test equipment field, concretely relates to pressure test frock.

Background

At present, functional part products connected by various pipe fittings are widely applied, wherein sealing performance of some functional part products needs to be detected, but safe and convenient tools are lacked in many cases for use. In the existing plugging tool, the test mode of sealing and testing medium access to the same interface comprises the following 3 types: the sealing tool is connected by threads, the use scene is the sealing of a threaded pipe fitting, the sealing of a pipe fitting interface of a tested product without threads cannot be realized, and the use scene has great limitation; the clamping and pressing type sealing tool is complex to use, wastes time and labor, greatly influences the working efficiency, and cannot realize the sealing of the bent pipe and the longer pipe fitting; the test fixture of external hose clamp fastening connection, this sealed mode often use the test under vacuum or lower pressure, can't bear great malleation pressure, and has to collapse in the use and takes off the risk, has very big potential safety hazard. In addition, the sealing and testing interfaces are mostly arranged for testing during the test of the built-in expansion type plugging tool, and the existing built-in expansion sealing type plugging tool cannot be used for the test of a product with only one external interface. Therefore, a pressure testing tool with a built-in expansion seal type, which can realize pipeline plugging of a tested product and can realize conduction of a test medium (such as gas, liquid, vacuum and the like) and can be used as a test port, is needed.

Patent CN202256036U discloses a sealing device for pipeline pressure testing, be provided with the bolt of through-hole on the axis direction, the cover is equipped with left baffle and the right baffle of the internal diameter looks adaptation of external diameter and pressure testing pipeline on the bolt, be provided with expansion seal circle between left baffle and right baffle, lie in the right baffle outside on the bolt and be equipped with the nut with bolt threaded connection, the nut of screwing makes left baffle and right baffle move in opposite directions to extrusion expansion seal circle realizes sealedly, but it has following defect: 1. the periphery of the middle bolt is not sealed, so that leakage risk exists; 2. the action area of the sealing ring is small, a large gap does not exist between the sealing ring and a pipe fitting to be tested when the sealing ring is used, and otherwise, the sealing ring cannot bear large pressure; 3. the structure is relatively complicated, has high requirements on machining precision, has relatively high manufacturing cost, is easy to damage and influences the pressure testing effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior art problem, the utility model provides a pressure test frock comprises through the lower bolster, seals gluey stick, backing ring and butterfly nut etc. and mutually supports, realizes sealing and pressure test to the product pipeline that only has an external tapping.

The technical scheme of the utility model is that: the utility model provides a pressure test frock, includes that the lower bolster is constituteed, the sealing rubber stick, upper padding plate, backing ring, rotatory pad, butterfly nut and quick connector, the lower bolster is constituteed to be the base member of whole device, sealing rubber stick, upper padding plate, backing ring, rotatory pad and butterfly nut closely install in proper order on the lower bolster is constituteed, and quick connector installs and constitutes the afterbody at the lower bolster.

Furthermore, the lower backing plate comprises a lower backing plate and a bolt, and the lower backing plate is formed by combining a screw rod of the bolt penetrating through the lower backing plate, so that the risk of untight sealing of the screw rod and the lower backing plate is avoided.

Further, a test medium channel is arranged in the center of the bolt.

Further, the tail part of the test medium channel is provided with an internal thread.

Further, the lower backing plate and the upper backing plate are arranged on two sides of the sealing rubber rod.

Furthermore, the sealing rubber rod, the upper backing plate, the backing ring and the rotating pad are sequentially sleeved on the screw rod, the butterfly nut is screwed on the screw rod, and the quick connector is installed at the internal thread at the tail part of the test medium channel through threads. The distance of sealed glue stick and butterfly nut of backing ring multiplicable, so that the utility model discloses a pressure test frock deepens the product pipeline that awaits measuring more, solves the lower problem of partial plastic tubing edge intensity, enlarges application scope. The rotating pad protects the backing ring from being damaged by the butterfly nut, so that the later maintenance cost is reduced, and the friction resistance borne by the butterfly nut during fastening is reduced.

Furthermore, the contact surface of the lower backing plate assembly and the sealing rubber rod is a rough processing surface so as to increase friction force and prevent the lower backing plate assembly from idling when the butterfly nut is screwed down.

Furthermore, the center of the solid sealing rubber rod is provided with a screw hole.

Furthermore, the screw hole is adapted to the size of the screw, so that the sealing rubber rod can well extrude and seal the screw when sealing the pipeline. The screw rod hole is adapted to the size of the screw rod, and the lower cushion plate is formed by combining the screw rod of the bolt with the lower cushion plate, so that the double sealing effect is achieved at the screw rod part contacted with the sealing rubber rod, the leakage at the screw rod part contacted with the sealing rubber rod is prevented, and the sealing performance of the device is ensured.

The lower backing plate component, the upper backing plate and the butterfly nut are made of stainless steel materials, so that the lower backing plate component, the upper backing plate and the butterfly nut have enough strength and meet the requirement of high-pressure sealing. The sealing glue stick is a high-temperature-resistant and corrosion-resistant solid glue stick. The backing ring is made of nylon, so that the strength requirement is met, and meanwhile, the backing ring is light enough, the cost is reduced, and the convenience is improved. The rotating pad is made of nylon and is a loss piece. The butterfly nut can be screwed up manually, also can use the spanner fastening, and generally when using, hand tightening butterfly nut can, when necessary (if the size is great, when bare-handed can't screw up) can use the spanner fastening.

The utility model discloses a when pressure test frock uses, according to the product pipeline size that awaits measuring, choose for use suitable size the utility model discloses pressure test frock fills in pressure test frock inside the product pipeline that awaits measuring, twists and moves butterfly nut for upper padding plate and lower bolster extrude sealed gluey stick, thereby make sealed gluey stick inflation reach sealed pipeline's purpose. Treat that butterfly nut screws up after corresponding degree, can realize that the pipeline is sealed completely, simultaneously under the effect of the friction force of sealed stick and pipeline inner wall, the utility model discloses a pressure test frock firmly fixes in the pipeline. At the moment, the quick connector at the tail of the screw rod is connected, the test medium enters and exits the product to be tested through the quick connector and the test medium channel, and the product to be tested is subjected to pressure test.

Adopt above-mentioned technical scheme, the utility model discloses the beneficial effect who realizes as follows:

(1) the utility model discloses can realize the product pipeline that awaits measuring and seal, and can realize simultaneously that test medium (like gas, liquid, vacuum etc.) switches on (can be used as experimental test mouth) pressure test frock (do only use its sealed function), will seal frock and test medium and switch on the frock and integrate. The sealing device can seal or pressure test the product pipeline with only one external interface, also can seal or pressure test the product pipeline with a plurality of external interfaces, and solves the problem that the existing sealing element can not perform pressure test on the product pipeline with only one external interface.

(2) The pressure bearing device has the advantages of large pressure bearing capacity, high safety, convenience in use, cost reduction, improvement of working efficiency, convenience in pressure test operation, time saving and labor saving.

(3) The utility model discloses can seal or pressure test to multiple interface types such as pipe fitting interface, hickey, return bend and longer pipe fitting, application scope is wide, solves the limitation of current pressure test frock technique.

(4) The utility model discloses an all spare parts all adopt acidproof, alkali-proof, high temperature resistant, corrosion-resistant and antirust material, make the utility model discloses not only be applicable to the liquid or the gas of normal temperature, normal pH valve, more can be suitable for in a plurality of severe scenes such as acid, alkali, high temperature, application scope is wide.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a cross-sectional view of the present invention.

In the figure, a lower backing plate 1, a bolt 2, a screw 3, a sealing rubber rod 4, an upper backing plate 5, a backing ring 6, a rotating pad 7, a butterfly nut 8, a quick connector 9, a test medium channel 10 and a screw hole 11.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1

Referring to fig. 1-3, a pressure test tool comprises a lower cushion plate assembly, a sealing rubber rod 4, an upper cushion plate 5, a backing ring 6, a rotating pad 7, a butterfly nut 8 and a quick connector 9, wherein the lower cushion plate assembly is a base body of the whole device, the sealing rubber rod 4, the upper cushion plate 5, the backing ring 6, the rotating pad 7 and the butterfly nut 8 are sequentially and tightly installed on the lower cushion plate assembly, and the quick connector 9 is installed at the tail of the lower cushion plate assembly.

The lower cushion plate comprises a lower cushion plate 1 and a bolt 2, and is formed by combining a screw rod 3 of the bolt 2 penetrating through the lower cushion plate 1.

The bolt 2 is centrally provided with a test medium channel 10.

The tail part of the test medium channel 10 is provided with an internal thread.

The lower cushion plate 1 and the upper cushion plate 5 are arranged on two sides of the sealing rubber rod 4.

The sealing rubber rod 4, the upper backing plate 5, the backing ring 6 and the rotating pad 7 are sequentially sleeved on the screw rod 3, the butterfly nut 8 is screwed on the screw rod 3, and the quick connector 9 is installed at the internal thread at the tail part of the test medium channel 10 through threads.

The contact surface of the lower backing plate component and the sealing rubber rod 4 is a rough processing surface.

The sealing rubber rod 4 is characterized in that a screw hole 11 is formed in the center of the solid sealing rubber rod 4.

The screw hole 11 is adapted to the size of the screw 3, so that the sealing rubber rod 4 can well extrude and seal the screw 3 when sealing the pipeline.

The utility model discloses a when pressure test frock uses, according to the product pipeline size that awaits measuring, choose for use suitable size the utility model discloses pressure test frock fills in pressure test frock inside the product pipeline that awaits measuring, twists and moves butterfly nut 8 for upper padding plate 5 extrudees sealing glue stick 4 with lower bolster 1, thereby makes the purpose that sealing glue stick 4 inflation reaches sealed pipeline. Treat that butterfly nut 8 screws up after corresponding degree, can realize that the pipeline is sealed completely, simultaneously under the effect of the frictional force of sealed glue stick 4 and pipeline inner wall, the utility model discloses a pressure test frock firmly fixes in the pipeline. At the moment, the quick connector 9 at the tail part of the screw rod 3 is connected, the test medium enters and exits the product to be tested through the quick connector 9 and the test medium channel 10, and the product to be tested is subjected to pressure test.

Claims

1. The utility model provides a pressure test frock which characterized in that: the device comprises a lower backing plate component, a sealing rubber rod (4), an upper backing plate (5), a backing ring (6), a rotating pad (7), a butterfly nut (8) and a quick connector (9), wherein the lower backing plate component is a base body of the whole device, the sealing rubber rod (4), the upper backing plate (5), the backing ring (6), the rotating pad (7) and the butterfly nut (8) are sequentially and tightly installed on the lower backing plate component, and the quick connector (9) is installed at the tail part of the lower backing plate component.

2. The pressure test tool of claim 1, wherein: the lower backing plate comprises a lower backing plate (1) and a bolt (2), and a screw (3) of the bolt (2) penetrates through the lower backing plate (1) to be combined.

3. The pressure testing tool of claim 2, wherein: and a test medium channel (10) is arranged at the center of the bolt (2).

4. The pressure testing tool of claim 3, wherein: the tail part of the test medium channel (10) is provided with an internal thread.

5. The pressure test tool of claim 1, wherein: the lower backing plate (1) and the upper backing plate (5) are arranged on two sides of the sealing rubber rod (4).

6. The pressure test tool of claim 1, wherein: the sealing rubber rod (4), the upper backing plate (5), the backing ring (6) and the rotating pad (7) are sequentially sleeved on the screw rod (3), the butterfly nut (8) is screwed on the screw rod (3), and the quick connector (9) is installed at the internal thread at the tail of the test medium channel (10) through threads.

7. The pressure test tool of claim 1, wherein: the contact surface of the lower backing plate component and the sealing rubber rod (4) is a rough processing surface.

8. The pressure testing tool of claim 6, wherein: the sealing rubber rod (4) is characterized in that a screw hole (11) is formed in the center of the solid sealing rubber rod (4).

9. The pressure testing tool of claim 8, wherein: the screw hole (11) is matched with the screw (3) in size, so that the sealing rubber rod (4) can well extrude and seal the screw (3) when sealing the pipeline.