CN217403700U - Novel leakage test sealing device - Google Patents
Novel leakage test sealing device Download PDFInfo
- Publication number
- CN217403700U CN217403700U CN202220071640.1U CN202220071640U CN217403700U CN 217403700 U CN217403700 U CN 217403700U CN 202220071640 U CN202220071640 U CN 202220071640U CN 217403700 U CN217403700 U CN 217403700U
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- pressure head
- connecting column
- sealing sleeve
- sleeve
- leakage test
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model discloses a novel leakage test sealing device, which comprises a pressure head, a support plate and a bottom plate, wherein a workpiece is arranged between the pressure head and the support plate; the supporting plate is provided with a mounting hole coaxial with the pressure head; a seal sleeve is arranged on the mounting hole; when the workpiece is matched with the sealing sleeve, the sealing sleeve is arranged in an oil duct hole of the workpiece, and the outer wall of the sealing sleeve is tightly matched with the inner wall of the oil duct hole; and the upper end of the pressure head is provided with a connecting mechanism. The utility model discloses an adopt inflation formula seal structure, through setting up independent seal cover and the pressure head cooperation that is whole cover column structure, in operation, the outer wall of seal cover closely laminates with the inner wall in work piece oil duct hole, make the seal cover realize preliminary inflation through the pushing down of pressure head, the rethread is filled with gas in the trepanning of past seal cover, make whole seal cover further expand to the shutoff is and seals the oil duct hole of work piece, the process is reliable and stable, the shutoff stability has been ensured, it is sealed effectual, and long service life.
Description
Technical Field
The utility model relates to a leak test technical field especially relates to a novel leak test is sealed device.
Background
The engine is required to have high reliability as the heart of a power machine such as an automobile. The oil circuit is not allowed to leak compared with the blood vessel of the engine. In order to detect the defects of the engine parts, oil duct leakage test is required in the manufacturing stage of the engine parts.
In the leakage test of the engine cylinder head cover in the prior art, the oil channel hole of the engine cylinder head cover is sealed by arranging the sealing rubber ring on the pressure head, and by adopting the leakage test sealing structure, the sealing ring is easy to damage or fall off, and leaks gas easily during leakage test, so that the sealing effect is poor, the service life is short, and the requirements of the prior art cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a novel leak test sealing device, simple structure, reasonable in design, the leakproofness is effectual, long service life, and the working process is reliable and stable.
The utility model discloses the technical scheme who adopts as follows:
a novel leakage test sealing device comprises a pressure head, a supporting plate and a bottom plate, wherein the supporting plate is arranged on the bottom plate; the supporting plate is provided with a mounting hole coaxial with the pressure head; a seal sleeve is arranged on the mounting hole; the sealing sleeve and the pressure head are coaxially arranged;
when the workpiece is matched with the sealing sleeve, the sealing sleeve is arranged in an oil duct hole of the workpiece, and the outer wall of the sealing sleeve is tightly matched with the inner wall of the oil duct hole;
an air inlet hole is formed in the position, corresponding to the sleeve hole of the sealing sleeve, of the bottom plate;
one end of the pressure head, which is far away from the support plate, is provided with a connecting mechanism; and one end of the connecting mechanism, which is far away from the pressure head, is fixed on the press machine.
Preferably, a limiting boss protruding upwards from the surface of the supporting plate is arranged at the joint of the supporting plate and the sealing sleeve; the limiting boss is of a circular structure.
Preferably, the sealing sleeve is arranged in an integral sleeve-shaped structure.
Preferably, the sealing sleeve is made of butadiene-acrylonitrile rubber.
Preferably, the connecting mechanism comprises a lower connecting column, a buffer spring and an upper connecting column; one end of the upper connecting column is connected with the press machine, and the other end of the upper connecting column is provided with a telescopic rod; one end of the lower connecting column is connected with the pressure head, and a sliding groove is formed in the other end of the lower connecting column; the telescopic rod is connected with the sliding chute in a sliding manner; the buffer spring is positioned between the lower connecting column and the upper connecting column, and two ends of the buffer spring are respectively fixedly connected with the upper connecting column and the lower connecting column.
Preferably, the bottom of the chute is provided with a pressure sensor.
Preferably, the press is one of an oil cylinder, an air cylinder or a punch press.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses an adopt inflation formula seal structure, through setting up independent seal cover and the pressure head cooperation that is whole cover column structure, in operation, the outer wall of seal cover closely laminates with the inner wall in work piece oil duct hole, make the seal cover realize preliminary inflation through the pushing down of pressure head, the rethread is filled with gas in the trepanning of past seal cover, make whole seal cover further expand to the shutoff is and seals the oil duct hole of work piece, the process is reliable and stable, the shutoff stability has been ensured, it is sealed effectual, and long service life.
2. Set up pressure sensor on the coupling mechanism who has buffer structure, the too big damage that causes the work piece of impulsive force when not only preventing the pressure head from pushing down, the stroke that pushes down of the downforce of control pressure head and pressure head that moreover can be accurate further ensures shutoff stability.
Drawings
Fig. 1 is a schematic view of the structure of the utility model in use;
fig. 2 is a schematic perspective view of the present invention;
wherein: the device comprises a pressure head 1, a support plate 2, a bottom plate 3, a sealing sleeve 4, a connecting mechanism 5, a press machine 6, a pressure sensor 7, a mounting hole 21, a limiting boss 22, an air inlet 31, a lower connecting column 51, a buffer spring 52, an upper connecting column 53, an expansion link 54, a workpiece 100, an oil passage hole 101 and a sliding groove 511.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1-2, a novel leakage test sealing device comprises a pressure head 1, a support plate 2 and a bottom plate 3, wherein the support plate 2 is arranged on the bottom plate 3, and is characterized in that a workpiece 100 is arranged between the pressure head 1 and the support plate 2; the supporting plate 2 is provided with a mounting hole 21 coaxial with the pressure head 1; the mounting hole 21 is provided with a sealing sleeve 4; the sealing sleeve 4 and the pressure head 1 are coaxially arranged;
when the workpiece 100 is matched with the sealing sleeve 4, the sealing sleeve 4 is arranged in an oil passage hole 101 of the workpiece 100, and the outer wall of the sealing sleeve 4 is tightly matched with the inner wall of the oil passage hole 101;
an air inlet hole 31 is formed in the position, corresponding to the sleeve hole of the sealing sleeve 4, on the bottom plate 3;
one end of the pressure head 1, which is far away from the support plate 2, is provided with a connecting mechanism 5; and one end of the connecting mechanism 5, which is far away from the pressure head 1, is fixed on the press machine 6.
In the embodiment, in operation, the sealing sleeve 4 is arranged in the oil passage hole 101 of the workpiece 100, and then the pressing head 1 is pressed downwards into the sleeve hole of the sealing sleeve 4; at the moment, the sealing sleeve 4 generates radial deformation under the action of the axial force of the pressure head 1 to realize preliminary expansion, and then the whole sealing sleeve 4 is inflated from the air inlet hole 31 of the bottom plate 3 to further expand until the oil passage hole 101 of the workpiece 100 is plugged and sealed; by adopting the leakage test sealing structure, the sealing stability is ensured, the sealing effect is good, the service life is long, and the process is stable and reliable.
Further, as shown in fig. 1-2, a position where the support plate 2 is connected with the sealing sleeve 4 is provided with a limit boss 22 protruding upwards from the surface of the support plate 2; the limiting boss 22 is of a circular ring structure.
In this embodiment, by providing the limiting boss 22, not only the connection stability and strength between the sealing sleeve 4 and the supporting plate 2 can be improved, but also the positioning during the feeding of the workpiece 100 is facilitated, and the rapid feeding is realized.
Further, as shown in fig. 1-2, the sealing sleeve 4 is arranged in an integral sleeve-shaped structure.
In this embodiment, the seal sleeve 4 adopts the setting of whole cover column structure, can satisfy the leakage test condition: less than or equal to 0.3Mpa and 30S; and the service life is more than 30000 times.
Further, the material of the sealing sleeve 4 is butadiene acrylonitrile rubber.
In the embodiment, the nitrile rubber has good air tightness and wear resistance, the stability and the reliability of the sealing performance during leakage test are improved, and the rapid damage can be prevented.
Further, as shown in fig. 1-2, the connecting mechanism 5 includes a lower connecting column 51, a buffer spring 52 and an upper connecting column 53; one end of the upper connecting column 53 is connected with the press machine 6, and the other end is provided with an expansion rod 54; one end of the lower connecting column 51 is connected with the pressure head 1, and a sliding groove 511 is formed in the other end of the lower connecting column; the telescopic rod 54 is connected with the sliding groove 511 in a sliding manner; the buffer spring 52 is located between the lower connecting column 51 and the upper connecting column 53, and both ends of the buffer spring are respectively fixedly connected with the upper connecting column 53 and the lower connecting column 51.
In this real-time example, through setting up coupling mechanism 5 that has buffer structure, can prevent that the impulsive force is too big when pressure head 1 pushes down and cause the damage of work piece 100, can guarantee again simultaneously that pressure head 1 pushes down the oil duct hole 101 of target block work piece 100.
Further, as shown in fig. 1-2, a pressure sensor 7 is disposed at the bottom of the chute 511.
In this embodiment, by the arrangement of the pressure sensor 7, the downward pressure of the ram 1 and the downward stroke of the ram 1 can be accurately controlled, and the plugging stability is further ensured.
Further, the press machine 6 is one of an oil cylinder, an air cylinder or a punch press.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the present invention.
Claims (7)
1. A novel leakage test sealing device comprises a pressure head, a supporting plate and a bottom plate, wherein the supporting plate is arranged on the bottom plate; the supporting plate is provided with a mounting hole coaxial with the pressure head; a seal sleeve is arranged on the mounting hole; the sealing sleeve and the pressure head are coaxially arranged;
when the workpiece is matched with the sealing sleeve, the sealing sleeve is arranged in an oil duct hole of the workpiece, and the outer wall of the sealing sleeve is tightly matched with the inner wall of the oil duct hole;
an air inlet hole is formed in the position, corresponding to the sleeve hole of the sealing sleeve, of the bottom plate;
one end of the pressure head, which is far away from the support plate, is provided with a connecting mechanism; and one end of the connecting mechanism, which is far away from the pressure head, is fixed on the press machine.
2. The novel leakage test sealing device as claimed in claim 1, wherein a limiting boss protruding upwards from the surface of the support plate is arranged at the joint of the support plate and the sealing sleeve; the limiting boss is of a circular structure.
3. The novel leakage test sealing device as claimed in claim 1, wherein the sealing sleeve is of an integral sleeve-like structure.
4. The novel leakage test sealing device as claimed in claim 1, wherein the sealing sleeve is made of nitrile rubber.
5. The novel leak test sealing device according to claim 1, wherein the connecting mechanism comprises a lower connecting column, a buffer spring and an upper connecting column; one end of the upper connecting column is connected with the press machine, and the other end of the upper connecting column is provided with a telescopic rod; one end of the lower connecting column is connected with the pressure head, and a sliding groove is formed in the other end of the lower connecting column; the telescopic rod is connected with the sliding chute in a sliding manner; the buffer spring is positioned between the lower connecting column and the upper connecting column, and two ends of the buffer spring are respectively fixedly connected with the upper connecting column and the lower connecting column.
6. The novel leakage test sealing device as claimed in claim 5, wherein a pressure sensor is arranged at the bottom of the sliding groove.
7. The novel leakage test sealing device as claimed in claim 1, wherein the press is one of a cylinder or a punch press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220071640.1U CN217403700U (en) | 2022-01-12 | 2022-01-12 | Novel leakage test sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220071640.1U CN217403700U (en) | 2022-01-12 | 2022-01-12 | Novel leakage test sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217403700U true CN217403700U (en) | 2022-09-09 |
Family
ID=83134200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220071640.1U Active CN217403700U (en) | 2022-01-12 | 2022-01-12 | Novel leakage test sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217403700U (en) |
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2022
- 2022-01-12 CN CN202220071640.1U patent/CN217403700U/en active Active
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