CN210920372U - Rubber runs through seal structure - Google Patents
Rubber runs through seal structure Download PDFInfo
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- CN210920372U CN210920372U CN201921788348.6U CN201921788348U CN210920372U CN 210920372 U CN210920372 U CN 210920372U CN 201921788348 U CN201921788348 U CN 201921788348U CN 210920372 U CN210920372 U CN 210920372U
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- tightening
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Abstract
The utility model discloses a rubber runs through seal structure, including last top member (1), sealing rubber (2), container lid (3), wire (4) and lower top member (5). The utility model discloses a rubber runs through seal structure and has a great deal of advantages such as withstand water pressure ability reinforce, the sealed difficult leakage of multilayer, seal strength increase and strengthen along with the water pressure.
Description
Technical Field
The utility model relates to a rubber runs through seal structure, especially a rubber runs through seal structure for water pressure detects belongs to sealed detection area.
Background
In the design and manufacture of industrial equipment, strain of the inner wall of a pressure vessel needs to be measured to verify the difference between an actual value and theoretical data, and particularly, in the design process of nuclear industrial equipment, the actual strain needs to be measured more frequently.
In actual measurement, because the strain gauge for measurement needs to be placed in a container, a hole needs to be formed in the container for leading out a lead of the strain gauge, and before high-pressure water is injected, the hole forming position of the container needs to be penetrated and sealed to complete the test.
When the strain of the inner wall of the pressure container is measured, the water pressure in the container is usually over 20Mpa, the maximum water pressure can reach 26Mpa, and the phenomena of poor sealing, popping of the sealing device and the like often occur due to the fact that a common sealing device cannot bear the large pressure, so that energy waste and potential safety hazards are caused.
Therefore, the prior art needs to research and design a simple and effective sealing structure capable of withstanding high pressure.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above problems, the present inventors have conducted intensive studies to design a rubber penetration sealing structure.
The rubber penetration sealing structure comprises an upper top piece 1, sealing rubber 2 and a container cover 3, wherein a through hole 31 is formed in the container cover 3, and the aperture of the through hole 31 is not more than 100mm so as to reduce the pressure borne by the upper top piece 1.
An upper ejector boss 11 is arranged below the upper ejector 1, the upper ejector boss 11 is cylindrical, and the diameter of the cross section of the upper ejector boss is the same as the aperture of the through hole 31.
Furthermore, the height of the upper top piece boss 11 is 1/10-1/3 of the depth of the through hole 31.
The upper head 1 is fixed to the container lid 3, and in a preferred embodiment, an external thread is provided on the edge of the upper head boss 11 and an internal thread is provided on the through hole 31.
In another preferred embodiment, screw holes are provided on the upper top 1 and the container lid 3 so that the upper top 1 can be fixed with the container lid 3 by bolts.
In a preferred embodiment, a sealing ring 6 is further disposed between the upper top member 1 and the container lid 3, the upper top member 1 is disc-shaped, an annular upper top member groove 12 is disposed on a lower surface of the upper top member 1, an annular container lid groove 32 is disposed at a corresponding position of the container lid 3, and the sealing ring 6 is disposed in a space formed by the upper top member groove 12 and the container lid groove 32.
Further, the height of the packing 6 is greater than the sum of the depths of the upper head groove 12 and the container lid groove 32.
More preferably, an annular groove 61 is opened on the upper and lower end surfaces of the sealing ring 6, and the cross-sectional shape of the annular groove 61 is a trapezoid with a narrower mouth and a wider bottom.
The sealing rubber 2 is arranged in the through hole 31, the sealing rubber 2 is columnar, the diameter of the cross section of the sealing rubber 2 is the same as the aperture of the through hole 31, and the axial thickness of the sealing rubber 2 is 4/5-9/10 of the depth of the through hole 31.
At the lower end of the container lid 3, a lower head 5 is further provided, and the structure of the lower head 5 is the same as that of the upper head 1.
In a preferred embodiment, a hydraulic self-tightening ring 52 is further arranged below the lower top part 5, the hydraulic self-tightening ring 52 is of a ring structure, a self-tightening rubber 53 is arranged on the inner side of the hydraulic self-tightening ring 52, the self-tightening rubber 53 is cylindrical, the cross-sectional diameter of the self-tightening rubber 53 is the same as the inner diameter of the hydraulic self-tightening ring 52, a gasket 54 is further arranged below the self-tightening rubber 53, the outer diameter of the gasket 54 is the same as the inner diameter of the self-tightening ring 52, a self-tightening stud 55 is further arranged below the lower top part 5, one end, far away from the lower surface of the lower top part 5, of the self-tightening stud 55 is provided with threads, the self-tightening stud 55 penetrates through the self-tightening rubber 53 and the gasket 54, and a nut is arranged.
Compared with the prior art, the utility model provides a pair of rubber runs through seal structure's beneficial effect lies in:
1. the rubber through sealing structure provided by the utility model can still effectively seal under higher water pressure;
2. the utility model provides a rubber through sealing structure, which has a multi-layer sealing structure and is not easy to leak;
3. the utility model provides a pair of rubber runs through seal structure, sealing strength strengthens along with hydraulic increase.
Drawings
FIG. 1 shows a schematic view of a rubber through seal structure according to a preferred embodiment of the present invention;
FIG. 2 shows a schematic view of a rubber through seal structure according to a preferred embodiment of the present invention;
fig. 3 shows a schematic view of a sealing ring according to a preferred embodiment of the present invention;
fig. 4 shows a schematic view of a sealing ring according to a preferred embodiment of the present invention;
fig. 5 shows a schematic view of a lower head according to a preferred embodiment of the present invention;
fig. 6 shows a cross-sectional view taken along line a-a of fig. 5.
The reference numbers illustrate:
1-upper top part;
11-upper top boss;
12-upper top piece recess;
2-sealing rubber;
3-container lid;
31-a through hole;
32-a container lid recess;
4-a wire;
5-lower top part;
52-hydraulic self-tightening ring;
53-self-tightening rubber;
54-a gasket;
55-self-tightening stud;
6-sealing ring;
61-annular groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. The features and advantages of the present invention will become more apparent from the description.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
According to the rubber through sealing structure provided by the utility model, as shown in figure 1, the rubber through sealing structure comprises an upper top piece 1, sealing rubber 2 and a container cover 3,
the container cover 3 is provided with a through hole 31 for leading out a lead wire 4 for detection, and further, the aperture of the through hole 31 is not more than 100mm so as to reduce the pressure applied on the upper top part 1.
An upper ejector boss 11 is arranged below the upper ejector 1, the upper ejector boss 11 is cylindrical, the diameter of the cross section of the upper ejector boss 11 is the same as the aperture of the through hole 31, the upper ejector boss 11 is inserted into the through hole 31,
furthermore, the height of the upper top piece boss 11 is 1/10-1/3 of the depth of the through hole 31.
The upper top 1 is fixed above the container lid 3.
In a preferred embodiment, an external thread is provided on the edge of the upper head boss 11 and an internal thread is provided on the through hole 31 so that the upper head boss 11 can be screwed on the container lid 3.
In another preferred embodiment, threaded holes are provided in the upper top 1 and the container lid 3 so that the upper top 1 can be fixed to the container lid 3 by bolts, which improve the mechanical strength between the upper top 1 and the container lid 3, thereby allowing the upper top 1 to bear a large pressure.
In a preferred embodiment, a sealing ring 6 is further disposed between the upper top member 1 and the container lid 3 to further ensure the sealing performance of the structure, as shown in fig. 2, the upper top member 1 is disc-shaped, an annular upper top member groove 12 is disposed on the lower surface of the upper top member 1, an annular container lid groove 32 is disposed at the corresponding position of the container lid 3, the sealing ring 6 is disposed in the space formed by the upper top member groove 12 and the container lid groove 32,
further, the height of the sealing ring 6 is greater than the sum of the depths of the upper ejector groove 12 and the container cover groove 32, preferably, the height of the sealing ring 6 is 1-2 mm longer than the sum of the depths of the upper ejector groove 12 and the container cover groove 32, so that the sealing ring 6 is extruded to a certain extent when being installed, and the sealing ring 6 is combined with the upper ejector 1 and the container cover 3 more tightly, and a better sealing effect is achieved.
More preferably, as shown in fig. 3, an annular groove 61 is opened on the upper and lower end surfaces of the sealing ring 6, the cross-sectional shape of the annular groove 61 is a trapezoid with a narrower mouth and a wider bottom,
as shown in fig. 4, the upper and lower end surfaces of the sealing ring 6 are respectively contacted with the upper top member 1 and the container cover 3, so that the annular groove 61 forms a sealing cavity, when high-pressure water permeates, the high-pressure water firstly enters the sealing cavity formed by the annular groove 61, due to the trapezoidal design of the annular groove 61, the pressure generated by the water pressure acts on the edge of the trapezoid, and the component force in the vertical direction generated by the pressure acts on the sealing ring 6 to make the contact between the sealing ring 6 and the upper top member 1 and the container cover 3 tighter, thereby improving the sealing effect.
An upper top guide wire hole is further formed in the upper top 1, and a wire 4 penetrates through the upper top 1 through the upper top guide wire hole.
The sealing rubber 2 is arranged in the through hole 31, the sealing rubber 2 is columnar, the diameter of the section of the sealing rubber 2 is the same as the aperture of the through hole 31,
the inventor discovers that the thickness of sealing rubber 2 is too thin, can lead to the deformation volume of sealing rubber 2 not enough, and overall structure sealing performance worsens, and sealing rubber 2's thickness is too thick, leads to the installation difficulty again, the utility model discloses in, sealing rubber 2's axial thickness is 4/5 ~ 9/10 of through-hole 31 hole depth, both makes installing in through-hole 31 that sealing rubber 2 can be convenient, makes sealing rubber 2 have sufficient deformation degree again, and then produces good sealed effect.
Further, a rubber wire hole is provided in the sealing rubber 2 so that the wire 4 can pass through the sealing rubber.
The lower end of the container cover 3 is also provided with a lower top piece 5, the structure of the lower top piece 5 is the same as that of the upper top piece 1, and the sealing rubber 2 is extruded by the upper top piece 1 and the lower top piece 5 to deform, so that the sealing effect is achieved.
In a preferred embodiment, a hydraulic self-tightening ring 52 is further disposed below the lower top 5, as shown in fig. 5 and 6, the hydraulic self-tightening ring 52 is of a ring structure, preferably made of rubber material, a self-tightening rubber 53 is disposed inside the hydraulic self-tightening ring 52, the self-tightening rubber 53 is of a cylindrical shape, the cross-sectional diameter of the rubber is the same as the inner diameter of the hydraulic self-tightening ring 52, a rubber wire guide hole is disposed thereon for the wire 4 to pass through,
under the self-tightening rubber 53, a gasket 54 is further provided, the outer diameter of the gasket 54 is the same as the inner diameter of the self-tightening ring 52, the gasket acts to press the self-tightening rubber 53, a self-tightening rubber wire guide hole is provided thereon for the wire 4 to pass through,
and a self-tightening stud 55 is further arranged below the lower top piece 5, a thread is arranged at one end of the self-tightening stud 55 far away from the lower surface of the lower top piece 5, the self-tightening stud 55 penetrates through the self-tightening rubber 53 and the gasket 54, and a nut is arranged at the thread end of the self-tightening stud 55.
Rubber seal structure, assemble according to following order:
1. sequentially enabling the lead 4 to pass through the lower top piece 5, the sealing rubber 2, the through hole 31 and the upper top piece 1;
2. the sealing rubber 2 is placed in the through hole 31;
3. the upper top 1 is fixed to the container lid 3,
preferably, a sealing ring 6 is arranged between the upper top piece 1 and the container cover 3, and the upper top piece 1 is fixed on the container cover 3 through a bolt;
4. the lower head 5 is fixed below the container lid 3, and the upper head 1 and the lower head 5 press the sealing rubber 2, so that the sealing rubber 2 is radially deformed,
preferably, a packing 6 is interposed between the lower head 5 and the container lid 3, and the lower head 5 is fixed below the container lid 3 by bolts.
Through top 1 and lower top 5 in the bolt fastening for sealing rubber 2 can receive great extrusion force, and rubber has bigger deformation degree, and then makes the rubber wire guide hole aperture on sealing rubber 2 reduce, sealing rubber 2 radial expansion, thereby makes to have good sealed effect between sealing rubber 2 and the wire 4 and between sealing rubber 2 and the container lid 3.
Further, the upper top member 1 and the container cover 3 are fixed by bolts, so that the upper top member 1 can bear a large pressure, thereby providing a sufficient supporting force for the sealing rubber 2.
In a preferred embodiment, during the process that the lead 4 passes through the lower top part 5, the lead passes through the gasket 54, the self-tightening rubber 53 and the lower top part 5 in sequence, the nut on the self-tightening stud 55 is rotated to press the gasket 54 and further press the self-tightening rubber 53, so that the self-tightening rubber 53 is preliminarily deformed, the sealing effect between the self-tightening rubber 53 and the lead 4 and between the lower top part 5 and the hydraulic self-tightening ring 52 is achieved,
after water is injected into a container to be measured, because water cannot enter a sealing space formed by the gasket 54, the self-tightening rubber 53 and the water pressure self-tightening ring 52, along with the gradual increase of the water pressure, the water pressure presses the water pressure self-tightening ring 52, so that the water pressure self-tightening ring 52 shrinks towards the inside of the ring, meanwhile, the gasket 54 is pressed by the water pressure, the gasket 54 continuously presses the self-tightening rubber 53, the sealing strength between the self-tightening rubber 53 and the lead 4 and the water pressure self-tightening ring 52 is enhanced, and the beneficial effect that the sealing strength of the lower top piece 5 is enhanced along with the increase of the water pressure is realized.
The present invention has been described above in connection with preferred embodiments, which are merely exemplary and illustrative. On this basis, can be right the utility model discloses carry out multiple replacement and improvement, these all fall into the utility model discloses a protection scope.
Claims (10)
1. A rubber penetration sealing structure is characterized by comprising an upper top piece (1), sealing rubber (2), a container cover (3), a lead (4) and a lower top piece (5),
the container cover (3) is provided with a through hole (31),
an upper ejector boss (11) is arranged below the upper ejector (1), an upper ejector wire guide hole is arranged on the upper ejector boss (11), a wire (4) passes through the upper ejector (1) through the upper ejector wire guide hole,
the sealing rubber (2) is columnar and is arranged in the through hole (31), a rubber wire guide hole is arranged on the sealing rubber (2), a wire (4) penetrates through the sealing rubber (2) through the rubber wire guide hole,
the structure of the lower top piece (5) is the same as that of the upper top piece (1),
go up the top member (1) and fix the upper end at container lid (3), lower top member (5) are fixed at the lower extreme of container lid (3), thereby extrude sealing rubber (2) through last top member (1) and lower top member (5) and make its deformation play sealed effect.
2. A rubber through-sealing structure according to claim 1,
the aperture of the through hole (31) is not more than 100 mm.
3. A rubber through-sealing structure according to claim 1,
the diameter of the section of the upper top boss (11) is the same as the aperture of the through hole (31).
4. A rubber through-sealing structure according to claim 1,
the height of the upper top piece boss (11) is 1/10-1/3 of the depth of the through hole (31).
5. A rubber through-sealing structure according to claim 1,
the sealing device is characterized in that a sealing ring (6) is further arranged between the upper ejecting piece (1) and the container cover (3), an annular upper ejecting piece groove (12) is formed in the lower surface of the upper ejecting piece (1), and an annular container cover groove (32) is formed in the corresponding position of the container cover (3), so that the sealing ring (6) can be installed in a space formed by the upper ejecting piece groove (12) and the container cover groove (32).
6. A rubber through-sealing structure according to claim 5,
the height of the sealing ring (6) is greater than the sum of the depths of the upper top piece groove (12) and the container cover groove (32).
7. A rubber through-sealing structure according to claim 5,
and the upper end surface and the lower end surface of the sealing ring (6) are provided with annular grooves (61), and the cross sections of the annular grooves (61) are trapezoidal, wherein the mouth parts of the trapezoidal grooves are narrow, and the bottoms of the trapezoidal grooves are wide.
8. A rubber through-sealing structure according to claim 1,
the section diameter of the sealing rubber (2) is the same as the aperture of the through hole (31).
9. A rubber through-sealing structure according to claim 1,
the axial thickness of the sealing rubber (2) is 4/5-9/10 of the depth of the through hole (31).
10. A rubber through-sealing structure according to claim 1,
a water pressure self-tightening ring (52) is arranged below the lower top piece (5), the water pressure self-tightening ring (52) is of an annular structure, self-tightening rubber (53) is arranged on the inner side of the water pressure self-tightening ring (52), the self-tightening rubber (53) is cylindrical, the cross section diameter of the self-tightening rubber (53) is the same as the inner diameter of the water pressure self-tightening ring (52), a gasket (54) is arranged below the self-tightening rubber (53),
the outer diameter of the gasket (54) is the same as the inner diameter of the self-tightening ring (52), a self-tightening stud (55) is further arranged below the lower jacking piece (5), one end, far away from the lower surface of the lower jacking piece (5), of the self-tightening stud (55) is provided with a thread, the self-tightening stud (55) penetrates through the self-tightening rubber (53) and the gasket (54), and a nut is arranged at the thread end of the self-tightening stud (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921788348.6U CN210920372U (en) | 2019-10-23 | 2019-10-23 | Rubber runs through seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921788348.6U CN210920372U (en) | 2019-10-23 | 2019-10-23 | Rubber runs through seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210920372U true CN210920372U (en) | 2020-07-03 |
Family
ID=71345982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921788348.6U Active CN210920372U (en) | 2019-10-23 | 2019-10-23 | Rubber runs through seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210920372U (en) |
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2019
- 2019-10-23 CN CN201921788348.6U patent/CN210920372U/en active Active
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