CN209802613U - Simple pipeline pressing leakage test device - Google Patents
Simple pipeline pressing leakage test device Download PDFInfo
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- CN209802613U CN209802613U CN201920783772.5U CN201920783772U CN209802613U CN 209802613 U CN209802613 U CN 209802613U CN 201920783772 U CN201920783772 U CN 201920783772U CN 209802613 U CN209802613 U CN 209802613U
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Abstract
The utility model provides a simple pipeline pressurizing leakage test device, which belongs to the technical field of pipeline leakage test, a main cylinder body is arranged on a pressure chamber cover, the pressure chamber cover is arranged on a pressure chamber, the main cylinder body, the pressure chamber cover and the pressure chamber are communicated, an air inlet cylinder body is connected with the inner wall of the main cylinder body in a sliding way, the upper end surface of the air inlet cylinder body is provided with a first air inlet hole, the lower end of the air inlet cylinder body is connected with an air inlet piston through a flange, the air inlet piston is communicated with the main cylinder body, a ventilation piston is arranged inside the air inlet cylinder body and the air inlet piston, and the one-way valve core is positioned below the air inlet piston and arranged at a stepped hole in the main cylinder body, the one-way valve core is in sliding connection with the inner wall of the stepped hole, a first cylindrical groove is formed in the upper end of the one-way valve core, a second air inlet hole is formed in the side wall of the first cylindrical groove, the lower end of the one-way valve core is connected with a spring through a stop cover, and the spring is compressed between the stop cover and the pressure bin cover. The utility model discloses rational in infrastructure, with low costs, detection efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of the pipeline leakage test, a leakage test device is suppressed to brief formula pipeline is related to.
Background
Along with the requirement for product quality is higher and higher, more and more precision die castings are required to be subjected to leakage test detection after being processed, and because different products need different leakage test machines, the leakage test machines are more and more, and the occupied area is also larger and larger. The air pressure is unstable when a plurality of products are tested for leakage, so that the production efficiency is low, and the quality of the leakage test products is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a simple pipeline is suppressed and is tried on leaks device rational in infrastructure, with low costs, detection efficiency is high.
In order to solve the technical problem, the utility model discloses a technical scheme is:
A simple pipeline pressurizing leakage test device comprises a main cylinder body, and an air inlet cylinder body, a ventilation piston, a one-way valve core and a spring which are arranged in the main cylinder body, wherein the main cylinder body is arranged on a pressure bin cover, the pressure bin cover is arranged on a pressure bin, the main cylinder body, the pressure bin cover and the pressure bin are communicated, the air inlet cylinder body is connected with the inner wall of the main cylinder body in a sliding manner, a first air inlet hole is formed in the upper end surface of the air inlet cylinder body, the lower end of the air inlet cylinder body is connected with the air inlet piston through a flange, the air inlet piston is communicated with the main cylinder body, the ventilation piston is arranged in the air inlet cylinder body and the air inlet piston and is connected with the inner walls of the air inlet cylinder body and the air inlet piston in a sliding manner, the one-way valve core is arranged at a stepped hole in the main cylinder body and is connected with the inner wall of the stepped hole in a sliding manner, the lower end of the one-way valve core is connected with a spring through a stop cover, and the spring is compressed between the stop cover and the pressure chamber cover.
furthermore, a pressure rod is arranged at the upper end of the air inlet cylinder body and drives the air inlet cylinder body to move up and down, the upper end of the air inlet cylinder body is connected with the middle position of the pressure rod, the front end of the pressure rod is connected with the upper end of a connecting rod, the lower end of the connecting rod is rotatably connected with a support rod, and the support rod is arranged on the pressure bin.
Further, advance the cylinder block and admit air piston internal connection and form three shoulder hole, be one-level shoulder hole, second grade shoulder hole and tertiary shoulder hole respectively, the piston of taking a breath is located at tertiary shoulder hole, the piston diameter of taking a breath is greater than one-level shoulder hole diameter, also is greater than second grade shoulder hole diameter, the circular arc groove that has a plurality of vertical settings on the second grade shoulder hole.
Furthermore, the lower end face of the air exchange piston is a second cylindrical groove, a first sealing ring is arranged on the upper portion of the outer side wall of the air exchange piston, and a second sealing ring is arranged on the outer wall of the air inlet piston.
Furthermore, the distance between the lower end face of the air inlet piston and the upper end face of the one-way valve core is 1/3 of the height of the main cylinder body, a boss at the upper end of the one-way valve core is hung on the end face of a stepped hole in the main cylinder body, a third sealing ring is arranged on the outer wall of the one-way valve core, the lower end of the one-way valve core is connected with a stop cover through a screw, and the stop cover drives the one-way valve core to move up and.
Furthermore, the second air inlet holes are formed in the bottom of the first cylindrical groove, the number of the second air inlet holes is 4, and the distance between the air inlet holes and the stop cover is smaller than the one-way movement stroke of the one-way valve core.
Furthermore, the side end of the pressure chamber is a test connecting pipe orifice, the pressure chamber is communicated with a pipeline to be tested through the test connecting pipe orifice, and the pressure chamber is provided with a pressure gauge.
Compared with the prior art, the utility model has the advantages and positive effect as follows.
1. The utility model discloses a press the depression bar and make into the cylinder block and admit air the piston downstream, the air is compressed and forces the piston of taking a breath in the master cylinder body and for advancing the cylinder block and the final close cylinder block that pastes of the piston upward movement that admits air, and the spring force messenger check valve core downstream is overcome to a certain extent to the internal gas pressure of master cylinder body, in the air admission pressure storehouse.
2. The utility model discloses the locking lid is connected to the check valve core lower extreme, and the spring makes the check valve core get back to initial position when the master cylinder body internal gas pressure reduces, and the locking lid plays limiting displacement to the check valve core return stroke.
3. The utility model discloses, lift depression bar control air inlet cylinder up-and-down motion through the pressure, automatic press device, the person of facilitating the use operation also can be connected to air inlet cylinder upper end.
4. The utility model has the advantages of simple and reasonable structure, convenient operation guarantees the leakage test product quality.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic view of a simplified pipeline pressure leak test device according to the present invention;
FIG. 2 is a front view of the simplified pipeline pressing leakage testing device of the present invention;
FIG. 3 is a schematic view of the intake cylinder, the scavenging piston, the intake piston, the check valve core, the spring and the pressure chamber cover;
Fig. 4 is a schematic view of the main cylinder body of the present invention.
Description of reference numerals:
1. A first air intake hole; 2. a pressure lever; 3. an air inlet block; 4. a first seal ring; 5. a scavenging piston; 6. a second seal ring; 7. a main cylinder body; 8. a one-way valve core; 9. a second air intake hole; 10. a third seal ring; 11. a stopper cover; 12. a spring; 13. a pressure chamber cover; 14. a pressure bin; 15. a flange; 16. A connecting rod; 17. an intake piston; 18. a first cylindrical groove; 19. a support bar; 20. testing the connecting pipe orifice; 21. a stepped hole; 22. a first-stage stepped hole; 23. a second-stage stepped hole; 24. an arc groove; 25. a third-stage stepped hole; 26. a second cylindrical groove; 27. and a pressure gauge.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
the present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 4, a simple pipeline pressurizing leakage test device comprises a main cylinder 7, an air inlet cylinder 3, a ventilation piston 5, a one-way valve core 8 and a spring 12, wherein the air inlet cylinder 3, the ventilation piston 5, the one-way valve core 8 and the spring 12 are arranged in the main cylinder 7, the main cylinder 7 is arranged on a pressure chamber cover 13, the pressure chamber cover 13 is arranged on a pressure chamber 14, the main cylinder 7, the pressure chamber cover 13 and the pressure chamber 14 are communicated, the air inlet cylinder 3 is slidably connected with the inner wall of the main cylinder 7, the upper end surface of the air inlet cylinder 3 is provided with a first air inlet 1, the lower end of the air inlet cylinder 3 is connected with an air inlet piston 17 through a flange 15, the air inlet piston 17 is communicated with the main cylinder 7, the ventilation piston 5 is arranged in the air inlet cylinder 3 and the air inlet piston 17 and is slidably connected with the inner wall of the two, the one-way valve core 8 is positioned below the air inlet piston 17 and arranged at a, the upper end of the one-way valve core 8 is provided with a first cylindrical groove 18, the side wall of the first cylindrical groove 18 is provided with a second air inlet hole 9, the lower end of the one-way valve core 8 is connected with a spring 12 through a stop cover 11, the spring 12 is compressed between the stop cover 11 and a pressure chamber cover 13, a press rod 2 is pressed to enable the air inlet cylinder body 3 and the air inlet piston 17 to move downwards, air is compressed in the main cylinder body 7 to force the air exchange piston 5 to move upwards relative to the air inlet cylinder body 3 and the air inlet piston 17 and finally cling to the air cylinder body 3, the air pressure in the main cylinder body 7 is increased to a certain degree and overcomes the elasticity of the spring 12 to enable the one-way valve core 8 to move downwards, so that air enters the pressure chamber through the first cylindrical groove 18 and the second air inlet hole 9, at the moment, the air pressure between the air inlet piston 17 and.
As shown in fig. 1 and 2, preferably, a pressure rod 2 is arranged at the upper end of the intake cylinder 3, the pressure rod 2 drives the intake cylinder 3 to move up and down, the upper end of the intake cylinder 3 is connected with the middle position of the pressure rod 2, the front end of the pressure rod 2 is connected with the upper end of a connecting rod 16, the lower end of the connecting rod 16 is rotatably connected with a support rod 19, the support rod 19 is arranged on a pressure bin 14, the intake cylinder 3 is controlled to move up and down by pressing the pressure rod 2, and the upper end of the intake cylinder 3 can also be connected with an automatic pressing device, so.
As shown in fig. 3, preferably, the intake cylinder 3 and the intake piston 17 are connected to form three stepped holes, which are a first-stage stepped hole 22, a second-stage stepped hole 23 and a third-stage stepped hole 25, the ventilation piston 5 is located in the third-stage stepped hole 25, the diameter of the ventilation piston 5 is larger than that of the first-stage stepped hole 22 and that of the second-stage stepped hole 23, the second-stage stepped hole 23 is provided with a plurality of vertically arranged arc grooves 24, the arc grooves 24 are used for air circulation, and the ventilation piston 5 moves up and down in the third-stage stepped hole 25 according to the pressure in the main cylinder.
As shown in fig. 1 and 3, the lower end surface of the scavenging piston 5 is preferably a second cylindrical groove 26, the upper part of the outer side wall of the scavenging piston 5 is provided with a first sealing ring 4, and the outer wall of the intake piston is provided with a second sealing ring 6, so that the sealing performance is improved.
As shown in fig. 1 and 3, preferably, the distance between the lower end surface of the air intake piston 17 and the upper end surface of the check valve core 8 is 1/3 of the height of the main cylinder 7, the boss at the upper end of the check valve core 8 is hung on the end surface of the stepped hole 21 in the main cylinder 7, the outer wall of the check valve core 8 is provided with a third sealing ring 10, the lower end of the check valve core 8 is connected with a stop cover 11 through a screw, the stop cover 11 drives the check valve core 8 to move up and down through the elastic force of a spring 12, the air pressure in the main cylinder is increased to a certain degree, the check valve core 8 moves down by overcoming the elastic force of the spring 12, the spring 12 makes the check valve core 8 return to the initial position when the air pressure in.
As shown in fig. 1 and 3, preferably, the second air inlet holes 9 are arranged at the bottom of the first cylindrical groove 18, the number of the second air inlet holes 9 is 4, the distance between the air inlet holes and the stop cover 11 is smaller than the one-way movement stroke of the check valve core 8, the check valve core 8 moves downwards under the stress, so that the second air inlet holes 9 are communicated with the pressure chamber 14, air enters the to-be-tested nozzle through the first cylindrical groove 18, the second air inlet holes 9, the pressure chamber cover 13 and the pressure chamber 14, and the test pipeline is full of air pressure for leakage test.
As shown in fig. 1 and fig. 3, preferably, a test connection pipe orifice 20 is arranged at a side end of the pressure chamber 14, the pressure chamber 14 is communicated with a pipeline to be tested through the test connection pipe orifice 20, a pressure gauge 27 is installed on the pressure chamber 14, leakage test is started after the pressure in the pressure chamber 14 and the pipeline to be tested is full, the pressure chamber 14 is communicated with the upper pressure gauge 27, and whether the needle of the pressure gauge 27 changes or the change amplitude is too large is checked within a certain time, so that whether the pipeline leaks.
The practical working process is that the pressing press rod 2 is pressed to make the air inlet cylinder body 3 and the air inlet piston 17 move downwards, the air is compressed in the main cylinder body 7 to force the air exchange piston 5 to move upwards relative to the air inlet cylinder body 3 and the air inlet piston 17 and finally cling to the air inlet cylinder body 3, the air pressure in the main cylinder body 7 is increased to a certain degree to overcome the elasticity of the spring 12 to make the one-way valve core 8 move downwards, so that the air enters into the pressure chamber through the first cylindrical groove 18 and the second air inlet hole 9, the air pressure between the air inlet piston 17 and the one-way valve 8 is reduced at the moment, the air exchange piston 5 is forced to move downwards, the lower end of the air exchange piston 5 clings to the air inlet piston 17, the pressing press rod is continuously lifted to fully inflate the pressure in the pipeline to be, the pressure gauge 27 is checked for a certain time to see whether the needle changes or the change amplitude is too large, so that whether the pipeline leaks air or not.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. the utility model provides a leakage test device is suppressed to brief formula pipeline which characterized in that: the air intake device comprises a main cylinder body (7), an air intake cylinder body (3), an air exchange piston (5), a one-way valve core (8) and a spring (12), wherein the air intake cylinder body (3), the air exchange piston (5), the one-way valve core (8) and the spring (12) are arranged in the main cylinder body (7), the main cylinder body (7) is arranged on a pressure chamber cover (13), the pressure chamber cover (13) is arranged on a pressure chamber (14), the main cylinder body (7), the pressure chamber cover (13) and the pressure chamber (14) are communicated, the air intake cylinder body (3) is in sliding connection with the inner wall of the main cylinder body (7), the upper end surface of the air intake cylinder body (3) is provided with a first air inlet hole (1), the lower end of the air intake cylinder body (3) is connected with an air intake piston (17) through a flange (15), the air intake piston (17) is communicated with the main cylinder body (7), the air exchange piston (5) is arranged in the air intake cylinder body, the pressure chamber is arranged at a stepped hole (21) in a main cylinder body (7), the one-way valve core (8) is in sliding connection with the inner wall of the stepped hole (21), a first cylindrical groove (18) is formed in the upper end of the one-way valve core (8), a second air inlet hole (9) is formed in the side wall of the first cylindrical groove (18), the lower end of the one-way valve core (8) is connected with a spring (12) through a stop cover (11), and the spring (12) is compressed between the stop cover (11) and a pressure chamber cover (13).
2. The simple pipeline pressurizing leakage test device as claimed in claim 1, wherein: advance cylinder block (3) upper end and be equipped with depression bar (2), depression bar (2) drive advances cylinder block (3) and reciprocates, advance cylinder block (3) upper end and be connected with depression bar (2) intermediate position, depression bar (2) front end is connected with connecting rod (16) upper end, connecting rod (16) lower extreme rotates with bracing piece (19) to be connected, bracing piece (19) set up on pressure storehouse (14).
3. the simple pipeline pressurizing leakage test device as claimed in claim 1, wherein: advance cylinder block (3) and admit air piston (17) internal connection and form three shoulder hole, be one-level shoulder hole (22), second grade shoulder hole (23) and tertiary shoulder hole (25) respectively, piston (5) of taking a breath is located at tertiary shoulder hole (25), piston (5) diameter of taking a breath is greater than one-level shoulder hole (22) diameter, also is greater than second grade shoulder hole (23) diameter, there are circular arc groove (24) of a plurality of vertical settings on second grade shoulder hole (23).
4. the simple pipeline pressurizing leakage test device as claimed in claim 1, wherein: the lower end face of the ventilation piston (5) is a second cylindrical groove (26), the upper portion of the outer side wall of the ventilation piston (5) is provided with a first sealing ring (4), and the outer wall of the air inlet piston is provided with a second sealing ring (6).
5. The simple pipeline pressurizing leakage test device as claimed in claim 1, wherein: the distance between the lower end face of the air inlet piston (17) and the upper end face of the one-way valve core (8) is 1/3 of the height of the main cylinder body (7), a boss at the upper end of the one-way valve core (8) is hung on the end face of a stepped hole (21) in the main cylinder body (7), a third sealing ring (10) is installed on the outer wall of the one-way valve core (8), the lower end of the one-way valve core (8) is connected with a stop cover (11) through a screw, and the stop cover (11) drives the one-way valve core (8) to move up and down through the.
6. The simple pipeline pressurizing leakage test device as claimed in claim 1, wherein: the second air inlet holes (9) are formed in the bottom of the first cylindrical groove (18), the number of the second air inlet holes (9) is 4, and the distance between each air inlet hole and the corresponding stop cover (11) is smaller than the one-way movement stroke of the one-way valve core (8).
7. The simple pipeline pressurizing leakage test device as claimed in claim 1, wherein: the pressure chamber (14) side is a test connection pipe orifice (20), the pressure chamber (14) is communicated with a pipeline to be tested through the test connection pipe orifice (20), and a pressure gauge (27) is arranged on the pressure chamber (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783772.5U CN209802613U (en) | 2019-05-28 | 2019-05-28 | Simple pipeline pressing leakage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783772.5U CN209802613U (en) | 2019-05-28 | 2019-05-28 | Simple pipeline pressing leakage test device |
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| Publication Number | Publication Date |
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| CN209802613U true CN209802613U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920783772.5U Active CN209802613U (en) | 2019-05-28 | 2019-05-28 | Simple pipeline pressing leakage test device |
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| CN (1) | CN209802613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254882A (en) * | 2020-10-25 | 2021-01-22 | 刘巨光 | Rubber hose water tightness test equipment |
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2019
- 2019-05-28 CN CN201920783772.5U patent/CN209802613U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254882A (en) * | 2020-10-25 | 2021-01-22 | 刘巨光 | Rubber hose water tightness test equipment |
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