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CN221037860U - Small-size reducing oil pipe leakage test fixture - Google Patents

Small-size reducing oil pipe leakage test fixture Download PDF

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Publication number
CN221037860U
CN221037860U CN202322802274.XU CN202322802274U CN221037860U CN 221037860 U CN221037860 U CN 221037860U CN 202322802274 U CN202322802274 U CN 202322802274U CN 221037860 U CN221037860 U CN 221037860U
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CN
China
Prior art keywords
oil pipe
groove
reducing oil
sealing
small
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CN202322802274.XU
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Chinese (zh)
Inventor
曾金波
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Shanghai Baiyun Automobile Oil Tube Co ltd
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Shanghai Baiyun Automobile Oil Tube Co ltd
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Abstract

The utility model discloses a small-sized reducing oil pipe leakage testing tool, which relates to the technical field of pipeline leakage testing and comprises an outer screw, an inner screw and a quick connector, wherein one end of the inner screw is in threaded connection with the outer screw, the other end of the inner screw is in threaded connection with the quick connector, and the outer screw can be spirally pushed along the length direction of the inner screw; the inner screw middle section is cut open and is equipped with the inner chamber recess that is used for clamping reducing oil pipe, and reducing oil pipe after the clamping is located same center axis with quick connector, outer screw rod, and its both ends periphery side sealing connection respectively, and reducing oil pipe one end after the clamping is blocked by outer screw rod, and the other end is linked together with quick connector to form the detection passageway in reducing oil pipe and quick connector inside. The utility model has the effects of rapidly realizing the leakage test of the small-sized reducing oil pipe, improving the production efficiency and greatly reducing the cost.

Description

Small-size reducing oil pipe leakage test fixture
Technical Field
The utility model relates to the technical field of pipeline leakage testing, in particular to a small-sized reducing oil pipe leakage testing tool.
Background
The oil pipe is an important component of an engine lubricating system, and in the lubricating system, connection of rubber pipelines with different pipe diameters is often faced, so that a reducing oil pipe joint is needed, and the connection of the rubber pipelines with different pipe diameters is realized by adopting the reducing oil pipe joint. The reducing oil pipe joint is usually formed by welding steel pipes with different pipe diameters, and the pipe ends are provided with ball sealing structures, so that leakage test is needed to ensure the sealing reliability of the reducing oil pipe joint after welding.
In the leakage test of the reducing oil pipe, the reducing oil pipe is usually placed in water, gas is introduced into the reducing oil pipe, and whether the reducing oil pipe has leakage is judged by whether bubbles are generated in the water. In the detection process, the reducing oil pipe is required to be fixed and sealed by adopting a leakage test tool so as to meet the test requirement. In addition, the leakage test of the reducing oil pipe can be carried out by adopting special detection equipment, and similarly, when the special detection equipment is adopted for testing, the leakage test tool is required to be adopted for fixing and sealing the reducing oil pipe. In the prior art, a leakage test tool specially aiming at a small-sized variable-diameter oil pipe is not solved yet.
Disclosure of utility model
Aiming at the problem in practical application, the utility model aims to provide a small-sized reducing oil pipe leakage test tool, which comprises the following specific scheme:
The utility model provides a small-size reducing oil pipe leakage test fixture, includes outer screw rod, interior screw rod, quick connector, interior screw rod one end threaded connection outer screw rod, the other end threaded connection and fixed quick connector, wherein, outer screw rod can be along the length direction screw propulsion of interior screw rod;
The inner screw middle section is cut open and is equipped with and is used for the clamping reducing oil pipe's inner chamber recess, the reducing oil pipe after the clamping with quick connector the outer screw rod is located same central axis, and its both ends periphery side sealing connection respectively, and reducing oil pipe one end after the clamping is blocked by outer screw rod, and the other end is linked together with quick connector, and reducing oil pipe with inside the formation detection channel of quick connector.
Further, a first internal threaded hole and a second internal threaded hole are respectively formed in the front end and the rear end of the internal screw rod, the inner cavity groove is arranged between the first internal threaded hole and the second internal threaded hole and is communicated with the first internal threaded hole and the second internal threaded hole, and the internal screw rod is respectively connected with the external screw rod and the quick connector through the threads of the first internal threaded hole and the second internal threaded hole;
Wherein, the two ends of the outer screw rod penetrate through the first inner threaded hole; one end of the quick connector is an air pipe connector, and the other end of the quick connector is connected to the second internal threaded hole.
Further, a first sealing groove is formed in the end portion, facing the inner cavity groove, of the outer screw rod, and a first sealing ring is installed in the first sealing groove along the circumferential direction of the first sealing groove.
Further, the sealing base is arranged in the second internal threaded hole;
a second sealing groove is formed in the end part, facing the inner cavity groove, of the sealing base, and a second sealing ring is arranged in the second sealing groove along the circumferential direction of the second sealing groove;
And the sealing base is internally provided with a vent hole which is respectively communicated with the quick connector and the clamped reducing oil pipe.
Further, the sizes of the first sealing ring and the second sealing ring are respectively matched with the sizes of the two ends of the reducing oil pipe.
Furthermore, the first sealing ring and the second sealing ring are made of fluororubber materials.
Further, the outer screw rod comprises a head and a threaded part, the diameter of the head is larger than that of the threaded part, and a hexagonal groove is formed in one end of the head.
Further, the inner cavity groove comprises an inner thread groove, the inner thread groove is connected with the first inner thread hole, the inner thread size of the inner thread groove is the same as that of the first inner thread hole, and the inner thread groove is matched with the thread part.
Furthermore, the inner cavity groove is provided with an avoidance groove in addition to the inner thread groove part, and the avoidance groove is matched with the size of the reducing oil pipe;
The central axis of the diameter-variable oil pipe is positioned on the same line with the central axis of the sealing base, the quick connector and the outer screw after being fixed by the avoidance groove.
Furthermore, the inner bottom surface of the avoidance groove is higher than the inner bottom surface of the second inner threaded hole so as to form a limiting end on the inner screw rod, and the limiting end is used for limiting the sealing base.
Compared with the prior art, the utility model has the following beneficial effects:
According to the small-size reducing oil pipe leakage test tool, the small-size reducing oil pipe is respectively and hermetically connected to the sealing base in the inner screw rod and the outer screw rod, and the small-size reducing oil pipe is hermetically fixed in a spiral pushing mode of the outer screw rod, so that the small-size reducing oil pipe can be quickly installed, and the small-size reducing oil pipe leakage test can be quickly realized. In the process, the small-sized variable-diameter oil pipe is convenient to install, the detection is convenient, and the production efficiency is improved; and the whole structure of the tool is simple, and the cost is greatly reduced.
Drawings
FIG. 1 is an overall schematic of an embodiment of the present utility model;
FIG. 2 is a front view of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view A-A of FIG. 2 in accordance with the present utility model;
FIG. 4 is a perspective view of an inner screw in an embodiment of the utility model;
Fig. 5 is a schematic view showing the internal structure of the inner screw in the embodiment of the present utility model.
Reference numerals: 1. an inner screw; 11. a first internally threaded bore; 12. a second internally threaded bore; 13. an inner cavity groove; 14. an internal thread groove; 15. an avoidance groove;
2. An outer screw; 21. a first seal groove; 22. a first seal ring; 23. a head; 24. a threaded portion; 25. hexagonal grooves;
3. a quick connector; 4. reducing oil pipe; 5. a detection channel;
6. Sealing the base; 61. a second seal groove; 62. a second seal ring; 63. and a vent hole.
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.
As shown in figures 1-3, the small-sized reducing oil pipe leakage testing tool comprises an outer screw rod 2, an inner screw rod 1, a quick connector 3 and a sealing base 6. The front end and the rear end of the inner screw 1 are respectively provided with a first inner threaded hole 11 and a second inner threaded hole 12, the inner screw 1 is respectively in threaded connection with the outer screw 2 and the quick connector 3 through the first inner threaded hole 11 and the second inner threaded hole 12, an inner cavity groove 13 for clamping the reducing oil pipe 4 is cut in the middle section of the inner screw 1, the inner cavity groove 13 is arranged between the first inner threaded hole 11 and the second inner threaded hole 12 and is communicated with the first inner threaded hole 11 and the second inner threaded hole 12, and the two ends of the outer screw 2 penetrate through the first inner threaded hole 11 (see fig. 1 and 3) so that the outer screw 2 can be spirally pushed along the length direction of the inner screw 1; one end of the quick connector 3 is an air pipe connector, the other end of the quick connector is connected into the second internal threaded hole 12 (see fig. 3), the sealing base 6 is installed in the second internal threaded hole 12, and the sealing base 6 is also provided with an air vent 63.
Meanwhile, as shown in fig. 3, the quick connector 3, the sealing base 6 and the external screw 2 are located on the same central axis, and the quick connector 3 is communicated with the vent hole 63 on the sealing base 6.
The end part of one end of the outer screw rod 2, which faces the inner cavity groove 13, is provided with a first sealing groove 21, a first sealing ring 22 matched with the first sealing groove in size is installed in the first sealing groove 21, and the first sealing ring 22 is circumferentially arranged along the first sealing groove 21. The end part of the sealing base 6, which faces the inner cavity groove 13, is provided with a second sealing groove 61, a second sealing ring 62 matched with the second sealing groove in size is arranged in the second sealing groove 61, and the second sealing ring 62 is circumferentially arranged along the second sealing groove 61. The dimensions of the first sealing ring 22 and the second sealing ring 62 are respectively matched with the dimensions of the two ends of the reducing oil pipe 4, namely, the diameters of the first sealing ring 22 and the second sealing ring 62 are different. Preferably, the first sealing ring 22 and the second sealing ring 62 are O-shaped rings made of fluororubber, so that the service life of the leakage testing tool is prolonged, the O-shaped rings are convenient to replace after being worn, and the maintenance cost is low.
When the fixture is integrally assembled, the outer screw rod 2 is firstly assembled on the inner screw rod 1 through the first internal threaded hole 11, then the sealing base 6 is installed in the second internal threaded hole 12, and finally the quick connector 3 is assembled through the second internal threaded hole 12.
When the small-sized reducing oil pipe 4 is clamped, firstly, the reducing oil pipe 4 is placed in an inner cavity groove 13, one end of the reducing oil pipe 4 is inserted into a second sealing groove 61 formed in one end of a sealing base 6, the peripheral side of the end is sealed by a second sealing ring 62, then the outer screw rod 2 is rotated, the outer screw rod 2 is pushed towards the direction of the reducing oil pipe 4 under the spiral acting force until the other end of the reducing oil pipe 4 is inserted into a first sealing groove 21 at the end part of the outer screw rod 2, and the peripheral side of the end of the reducing oil pipe 4 is sealed by a first sealing ring 22, so that the clamping of the reducing oil pipe 4 is completed. At this time, the inner channel of the small-sized reducing oil pipe 4 after clamping, the inner channel of the quick connector 3 and the vent hole 63 on the sealing base 6 form a detection channel 5 (see fig. 3).
During leakage detection, the quick connector end of the quick connector 3 is quickly connected and sealed with air pressure equipment, and air is introduced into the formed detection channel 5 by the air pressure equipment so as to perform quick leakage detection of the small-size reducing oil pipe 4. It should be noted that, as the prior art, the air pressure device is not described herein.
In addition, in order to clamp the tooling for the oil pipe 4 with the proper diameter, the diameter of the first sealing groove 21 is smaller than that of the second sealing groove 61, and correspondingly, the diameter of the first sealing ring 22 is smaller than that of the second sealing ring 62. Thus, the large diameter end of the diameter-variable oil pipe 4 is fitted into the second seal groove 61, and the small diameter end is fitted into the first seal groove 21.
In order to facilitate the screw-pushing of the outer screw 2, see fig. 1 and 3, the outer screw 2 is composed of a head portion 23 and a threaded portion 24, the diameter of the head portion 23 is larger than that of the threaded portion 24, and a hexagonal groove 25 is formed at one end of the head portion 23, wherein the hexagonal groove 25 is matched with a hexagonal wrench. In order to maintain the stability of the external screw 2 in the screw pushing process, see fig. 4-5, the inner cavity groove 13 comprises an inner thread groove 14, the inner thread groove 14 is connected with the first inner thread hole 11, and the inner thread sizes of the inner thread groove 14 and the first inner thread hole 11 are the same, and the inner thread groove 14 is matched with the thread part 24 (see fig. 3), so that even if the front end part of the thread part 24 is separated from the first inner thread hole 11 in the advancing process, the external screw can still be pushed on the inner thread groove 14 in a threaded manner, the situation that the external screw deviates in the advancing process is avoided, and the accurate butt joint of the external screw and the reducing oil pipe 4 is ensured.
Further, as shown in fig. 3, the bottom diameter of the second internal threaded hole 12 is slightly larger than the external diameter of the sealing base 6, so that the sealing base 6 is convenient to install in the second internal threaded hole 12, and meanwhile, convenient to detach and replace. In addition, the sealing base 6 is detachably arranged on the inner screw 1, so that the second sealing ring 62 can be conveniently detached and replaced. It should be noted that in another possible embodiment, the sealing base 6 may also be provided as an integral structure with the internally threaded rod.
Referring to fig. 3-5, an avoidance groove 15 is formed in the inner cavity groove 13 except for the inner thread groove 14, the avoidance groove 15 is matched with the size of the reducing oil pipe 4, and the reducing oil pipe 4 is fixed in the avoidance groove 15, so that the reducing oil pipe 4, the sealing base 6 and the outer screw 2 are arranged with the central axis, and the precise butt joint of the reducing oil pipe 4, a second sealing groove 61 on the sealing base 6 and a first sealing groove 21 on the outer screw 2 is ensured. Meanwhile, the inner bottom surface of the avoidance groove 15 is higher than the inner bottom surface of the second internal threaded hole 12, so that a limiting end is formed between the avoidance groove 15 and the second internal threaded hole 12 by the internal screw 1, the effect of limiting the sealing base 6 can be achieved, one side of the sealing base 6 is abutted against the limiting end during installation, the other side is abutted against by the quick connector 3, the sealing base 6 can be prevented from being separated from the second internal threaded hole 12, and the integrity of the tool is ensured.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. The small-sized reducing oil pipe leakage testing tool is characterized by comprising an inner screw, an outer screw and a quick connector, wherein one end of the inner screw is in threaded connection with the outer screw, the other end of the inner screw is in threaded connection with and fixes the quick connector, and the outer screw can be spirally pushed along the length direction of the inner screw;
The inner screw middle section is cut open and is equipped with and is used for the clamping reducing oil pipe's inner chamber recess, the reducing oil pipe after the clamping with quick connector the outer screw rod is located same central axis, and its both ends periphery side sealing connection respectively, and reducing oil pipe one end after the clamping is blocked by outer screw rod, and the other end is linked together with quick connector, and reducing oil pipe with inside the formation detection channel of quick connector.
2. The small-sized reducing oil pipe leakage testing tool according to claim 1, wherein a first internal threaded hole and a second internal threaded hole are respectively formed in the front end and the rear end of the internal screw rod, an inner cavity groove is arranged between the first internal threaded hole and the second internal threaded hole and is communicated with the first internal threaded hole and the second internal threaded hole, and the internal screw rod is respectively connected with the external screw rod and the quick connector through the first internal threaded hole and the second internal threaded hole in a threaded mode.
3. The small-sized diameter-variable oil pipe leakage test tool according to claim 1 or 2, wherein a first sealing groove is formed in the end portion, facing the inner cavity groove, of the outer screw rod, and a first sealing ring is installed in the first sealing groove along the circumferential direction of the first sealing groove.
4. The small-size reducing oil pipe leakage test fixture according to claim 3, further comprising a sealing base, wherein the sealing base is installed in the second internal threaded hole;
a second sealing groove is formed in the end part, facing the inner cavity groove, of the sealing base, and a second sealing ring is arranged in the second sealing groove along the circumferential direction of the second sealing groove;
And the sealing base is internally provided with a vent hole which is respectively communicated with the quick connector and the clamped reducing oil pipe.
5. The small-sized diameter-variable oil pipe leakage testing tool according to claim 4, wherein the first sealing ring and the second sealing ring are respectively matched with the two ends of the diameter-variable oil pipe in size, and the diameters of the first sealing ring and the second sealing ring are different.
6. The small-sized diameter-variable oil pipe leakage test tool according to claim 4, wherein the first sealing ring and the second sealing ring are made of fluororubber materials.
7. The small-sized diameter-variable oil pipe leakage test tool according to claim 2, wherein the outer screw rod comprises a head portion and a threaded portion, the diameter of the head portion is larger than that of the threaded portion, and a hexagonal groove is formed in one end of the head portion.
8. The small-size reducing oil pipe leakage test fixture according to claim 7, wherein the inner cavity groove comprises an inner thread groove, the inner thread groove is connected with the first inner thread hole, the inner thread groove and the first inner thread hole are identical in size, and the inner thread groove is matched with the thread part.
9. The small-sized reducing oil pipe leakage test tool according to claim 8, wherein the inner cavity groove is further provided with an avoidance groove in addition to the inner thread groove part, and the avoidance groove is matched with the reducing oil pipe in size;
The central axis of the diameter-variable oil pipe is positioned on the same line with the central axis of the sealing base, the quick connector and the outer screw after being fixed by the avoidance groove.
10. The small-sized diameter-variable oil pipe leakage test tool according to claim 9, wherein the inner bottom surface of the avoidance groove is higher than the inner bottom surface of the second inner threaded hole so as to form a limiting end on the inner screw, and the limiting end is used for limiting the sealing base.
CN202322802274.XU 2023-10-19 2023-10-19 Small-size reducing oil pipe leakage test fixture Active CN221037860U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322802274.XU CN221037860U (en) 2023-10-19 2023-10-19 Small-size reducing oil pipe leakage test fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322802274.XU CN221037860U (en) 2023-10-19 2023-10-19 Small-size reducing oil pipe leakage test fixture

Publications (1)

Publication Number Publication Date
CN221037860U true CN221037860U (en) 2024-05-28

Family

ID=91134301

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322802274.XU Active CN221037860U (en) 2023-10-19 2023-10-19 Small-size reducing oil pipe leakage test fixture

Country Status (1)

Country Link
CN (1) CN221037860U (en)

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