CN213745345U - Sealing joint for sampling of closed container - Google Patents
Sealing joint for sampling of closed container Download PDFInfo
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- CN213745345U CN213745345U CN202022890220.XU CN202022890220U CN213745345U CN 213745345 U CN213745345 U CN 213745345U CN 202022890220 U CN202022890220 U CN 202022890220U CN 213745345 U CN213745345 U CN 213745345U
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Abstract
The utility model provides a sealing joint is used in closed container sampling belongs to check out test set technical field. The technical scheme is as follows: the sealing joint for sampling the closed container is characterized by comprising a joint, wherein an elastic sealing piece is arranged at any end of the joint and is compressed through a connecting piece, and a connecting thread is arranged at the other end of the joint; test tube jacks are concentrically formed in the joint, the elastic sealing element and the connecting piece; the connecting piece compresses tightly elastic sealing element, the test tube jack on the elastic sealing element contracts to the axle center. The utility model has the advantages that: the sealing joint can be normally used when the outer diameter of the sampling test tube has certain difference and error.
Description
Technical Field
The utility model relates to a check out test set technical field especially relates to a sealing joint is used in closed container sampling.
Background
Hydrogen sulfide is a toxic, flammable, colorless gas and readily soluble in water, alcohols, carbon disulfide, white spirit and crude oil, and therefore, it is necessary to periodically sample the location containing hydrogen sulfide in order to detect the concentration of hydrogen sulfide.
In the process of collecting and detecting gas components of petroleum associated gas containing toxic gases such as hydrogen sulfide and the like, in order to ensure the accuracy of collected and detected data and the safety of an operation process, the gas components need to be collected from a closed container, and a detection test tube needs to be inserted into the closed container for sampling. At present, various sampling test tubes are different in model and manufacturer, the outer diameter of the sampling test tube has certain difference and error, but the actually used sealing joint can only be suitable for corresponding size, if the difference or the error is large, the sealing joint cannot be normally used, and only the sampling test tube can be replaced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a diameter size when the sampling test tube has certain difference and error also can normal use's sealing joint.
The utility model discloses a realize through following technical scheme: the sealing joint for sampling the closed container is characterized by comprising a joint, wherein an elastic sealing piece is arranged at any end of the joint and is compressed through a connecting piece, and a connecting thread is arranged at the other end of the joint;
test tube jacks are concentrically formed in the joint, the elastic sealing element and the connecting piece;
the connecting piece compresses tightly elastic sealing element, the test tube jack on the elastic sealing element contracts to the axle center.
A circular groove is concentrically arranged at any end of the joint, the elastic sealing element is arranged in the circular groove, the outer end of the elastic sealing element extends out of the joint, and the connecting piece is a nut connected through threads;
the test tube jack on the nut comprises round hole and the bell mouth that sets up with one heart, the round hole is close to elastic sealing element just elastic sealing element with the inner wall of round hole contacts, the path end of bell mouth is kept away from elastic sealing element just is less than the internal diameter of round hole.
The elastic sealing element comprises an annular sealing element and a cylinder type sealing element, the annular sealing element is arranged in the circular groove, and the cylinder type sealing element is in contact with the inner wall of the circular hole.
The annular sealing piece is lower than the outer end face of the circular groove, an elastic pressing ring is arranged in the circular groove and located on the outer side of the annular sealing piece, and the elastic pressing ring is clamped between the outer wall of the barrel-shaped sealing piece and the inner wall of the circular groove.
The annular sealing piece is lower than the outer end face of the circular groove, the outer end of the circular groove is provided with a spot facing, the spot facing is internally provided with an elastic pressing ring located on the outer side of the annular sealing piece, and the elastic pressing ring is clamped between the outer wall of the barrel-shaped sealing piece and the inner wall of the spot facing.
The nut is provided with an annular groove, an annular top plate is arranged in the annular groove through a plurality of springs, and the annular top plate can be jacked on the elastic compression ring.
Annular sealing member and cartridge type sealing member integrated into one piece, the material is silica gel.
The outside equipartition of nut has anti-skidding structure, the internal diameter of test tube socket is 3.5mm-4.5 mm.
The middle of the joint is high, the two ends of the joint are low, and the two ends of the joint are provided with external threads.
The contact surface of the elastic sealing element and the joint is a curved surface with a high middle part and a low periphery; or/and the contact surface of the elastic sealing element and the connecting piece is a curved surface with a high middle part and a low periphery.
The test tube and air pump connecting structure comprises a connecting block, wherein an external thread connected with an air pump is arranged on the outer wall of one end of the connecting block, a stepped hole is concentrically arranged at the other end of the connecting block, the stepped hole is a small-diameter hole, a middle-diameter hole and a large-diameter hole in sequence from one end of the external thread, a hollow elastic column is concentrically arranged in the small-diameter hole, an elastic ring is arranged in the middle-diameter hole and positioned on the outer side of the elastic column, the inner wall of the elastic ring is in contact with the outer wall of the elastic column, an extrusion block is arranged in the large-diameter hole in a threaded connection mode, the extrusion block is concentrically provided with an extrusion hole, the extrusion hole comprises a straight hole section and a conical hole section, the straight hole section is close to the elastic ring, and when the inner wall of the conical hole section is in contact with the outer wall of the elastic ring, the elastic ring deforms towards the center;
and a test tube outlet is reserved on the extrusion block.
The elastic column is close to one end of the small-diameter hole is externally connected with an annular table, and the elastic ring is close to the end face of the extrusion hole and is locally provided with a plurality of elastic strips in the circumferential direction. The elastic ring, the elastic column and the elastic strip can be made of rubber or plastic.
The connecting block and the extrusion block can be made into a stepped shaft shape.
The utility model has the advantages that: the sealing joint can be normally used when the outer diameter of the sampling test tube has certain difference and error; the cylinder-shaped sealing element is extruded through the conical hole so as to adapt to errors, and the test tube is extruded and fixed through the deformation of the cylinder-shaped sealing element.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a reference diagram of a usage status in the first embodiment.
FIG. 3 is a schematic structural diagram of an elastomeric seal according to one embodiment.
Fig. 4 is a schematic structural diagram of the second embodiment or the third embodiment.
Fig. 5 is a schematic structural view of the second embodiment or the third embodiment in a disassembled state.
Fig. 6 is a schematic view of the internal structure of the nut according to the second or third embodiment.
Fig. 7 is a schematic view of the internal structure of the second embodiment or the third embodiment.
Fig. 8 is a reference diagram of the second or third embodiment in a use state.
Fig. 9 is a structural view of the connection member.
Wherein the reference numerals are: 1. a joint; 2. a nut; 4. an elastomeric seal; 5. an elastic compression ring; 6. an annular top plate; 7. a test tube; 8. connecting blocks; 9. extruding the block; 10. an elastic column; 11. an elastic strip; 12. an elastic ring; 101. a test tube socket; 102. a boss; 103. a circular groove; 201. a circular hole; 202. a tapered hole; 203. an annular groove; 401. a cartridge type seal member; 402. an annular seal; 601. a spring.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
The first embodiment is as follows:
referring to fig. 1-3, the utility model relates to a sealing joint for sampling of a closed container, which comprises a joint 1, wherein an elastic sealing element 4 is arranged at any end of the joint 1, the elastic sealing element 4 is compressed through a connecting piece, and a connecting thread is arranged at the other end of the joint 1;
test tube jacks are concentrically formed in the joint 1, the elastic sealing element 4 and the connecting piece;
the connecting piece compresses tightly elastic sealing element 4, and the test tube jack on elastic sealing element 4 contracts to axle center department.
The contact surface of the elastic sealing element 4 and the joint 1 is a curved surface with a high middle part and a low periphery; or/and the contact surface of the elastic sealing element 4 and the connecting piece is a curved surface with a high middle part and a low periphery, and the connecting piece is a screw cap 2 connected through threads.
The curved surface deforms through the extrusion of the screw cap 2 to achieve the purpose of shrinking to the axis, so that the test tube 3 is tightened.
Example two;
referring to fig. 4-8, a sealing joint for sampling a closed container comprises a joint 1, wherein an elastic sealing element 4 is arranged at any end of the joint 1, the elastic sealing element 4 is compressed through a connecting piece, and a connecting thread is arranged at the other end of the joint 1;
test tube jacks 101 are concentrically formed in the joint 1, the elastic sealing element 4 and the connecting piece;
the connecting piece compresses tightly elastic sealing element 4, and the test tube jack on elastic sealing element 4 contracts to axle center department.
Any end of the joint 1 is concentrically provided with a circular groove 103, the elastic sealing element 4 is arranged in the circular groove 103, the outer end of the elastic sealing element 4 extends out of the joint 1, and the connecting element is a screw cap 2 connected through threads;
the test tube jack on the nut 2 comprises a round hole 201 and a taper hole 202 which are concentrically arranged, the round hole 201 is close to the elastic sealing element 4, the elastic sealing element 4 is in contact with the inner wall of the round hole 201, and the small-diameter end of the taper hole 202 is far away from the elastic sealing element 4 and is smaller than the inner diameter of the round hole 201.
The elastic seal member 4 includes an annular seal member 402 and a cartridge type seal member 401, the annular seal member 402 being disposed in the circular groove 103, and the cartridge type seal member 401 being in contact with the inner wall of the circular hole 301.
The annular sealing piece 402 is lower than the outer end face of the circular groove 103, an elastic pressing ring 5 is arranged in the circular groove 103 and located on the outer side of the annular sealing piece 402, and the elastic pressing ring 5 is clamped between the outer wall of the cylinder-shaped sealing piece 401 and the inner wall of the circular groove 103.
Example three:
referring to fig. 4-8, a sealing joint for sampling a closed container comprises a joint 1, wherein an elastic sealing element 4 is arranged at any end of the joint 1, the elastic sealing element 4 is compressed through a connecting piece, and a connecting thread is arranged at the other end of the joint 1;
test tube jacks 101 are concentrically formed in the joint 1, the elastic sealing element 4 and the connecting piece;
the connecting piece compresses tightly elastic sealing element 4, and the test tube jack on elastic sealing element 4 contracts to axle center department.
Any end of the joint 1 is concentrically provided with a circular groove 103, the elastic sealing element 4 is arranged in the circular groove 103, the outer end of the elastic sealing element 4 extends out of the joint 1, and the connecting element is a screw cap 2 connected through threads;
the test tube jack on the nut 2 comprises a round hole 201 and a taper hole 202 which are concentrically arranged, the round hole 201 is close to the elastic sealing element 4, the elastic sealing element 4 is in contact with the inner wall of the round hole 201, and the small-diameter end of the taper hole 202 is far away from the elastic sealing element 4 and is smaller than the inner diameter of the round hole 201.
The elastic seal member 4 includes an annular seal member 402 and a cartridge type seal member 401, the annular seal member 402 being disposed in the circular groove 103, and the cartridge type seal member 401 being in contact with the inner wall of the circular hole 301.
The annular sealing piece 402 is lower than the outer end face of the circular groove 103, the outer end of the circular groove 103 is provided with a spot facing, an elastic pressing ring 5 is arranged in the spot facing and on the outer side of the annular sealing piece 402, and the elastic pressing ring 5 is clamped between the outer wall of the cylindrical sealing piece 401 and the inner wall of the spot facing.
Be provided with annular groove 303 on the nut 2, be provided with annular roof 6 through a plurality of spring 601 in the annular groove 303, annular roof 6 can push up on elastic compression ring 5.
Since the inner diameter of the spot facing is larger than that of the circular groove 103, the elastic pressing ring 5 covers the gap between the annular sealing member 402 and the circular groove 103, and the sealing effect is better than that of the first embodiment.
The annular seal member 402 and the cylindrical seal member 401 are integrally formed, and are made of silicone.
The outer side of the screw cap 2 is evenly provided with an anti-slip structure, and the inner diameter of the test tube socket 101 is 3.5mm-4.5 mm.
The middle of the joint 1 is high, the two ends are low, the two ends are provided with external threads, and the middle is provided with a boss 102.
The use method comprises the following steps: insert test tube socket 101 with test tube 7's one end in, when test tube 7 exposes joint 1, rotation nut 2, when test tube 7's size is little to one side, bell mouth 302 can be to cartridge type sealing member extrusion and then realize the fixed to test tube 7, the flexible deformation of spring 601 can push up annular roof 6 on elastic compression ring 5, the sealing joint of this one end of test tube 7 can be connected with sealed container, the other end also can set up sealing joint and be used for being connected with sampling equipment, like the sampling inflator etc. In addition, the sampling of hydrogen sulfide is only used for illustration in the application, and the sampling of other gases or liquids can be applied in practical use.
Example four:
referring to fig. 9, on the basis of the first embodiment or the second embodiment or the third embodiment, the test tube/air pump further includes a connecting member of the test tube/air pump, the connecting member includes a connecting block 8, an external thread connected to the air pump is provided on an outer wall of one end of the connecting block 8, a stepped hole is concentrically provided at the other end of the connecting block, the stepped hole is a small-diameter hole, a medium-diameter hole and a large-diameter hole in sequence from one end of the external thread, a hollow elastic column 10 is concentrically provided in the small-diameter hole, an elastic ring 12 is provided in the medium-diameter hole and outside the elastic column 10, an inner wall of the elastic ring 12 contacts with an outer wall of the elastic column 10, an extrusion block 9 is provided in the large-diameter hole through a threaded connection, the extrusion block 9 is concentrically provided with an extrusion hole, the extrusion hole includes a straight hole section and a tapered hole section, the straight hole section is close to the elastic ring 12, and when an inner wall of the tapered hole section contacts with an outer wall of the elastic ring 12, the elastic ring 12 deforms toward the center;
and a test tube outlet is reserved on the extrusion block 9.
The end of the elastic column 10 close to the small-diameter hole is externally connected with an annular table, and a plurality of elastic strips 11 are arranged on the end face of the elastic ring 12 close to the extrusion hole in the circumferential direction.
The use method comprises the following steps: install elasticity post 10, elastic ring 12 on connecting 8 in proper order, then set up connecting block 8 on current aspirator through threaded connection, insert the test tube in elasticity post 10, install extrusion block 9 on connecting block 8 through threaded connection at last to extrude elasticity strip 11 and elastic ring 12, make elasticity strip 11 and elastic ring 12 compress tightly the test tube.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus 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 invention, unless otherwise specified, "a plurality" means two or more.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical features that the utility model has not been described can be realized through or adopt prior art, and no longer give unnecessary details here, and of course, the above-mentioned explanation is not right the utility model discloses a restriction, the utility model discloses also not only be limited to the above-mentioned example, ordinary skilled person in this technical field is in the utility model discloses a change, modification, interpolation or replacement made in the essential scope also should belong to the utility model discloses a protection scope.
Claims (10)
1. The sealing joint for sampling the closed container is characterized by comprising a joint, wherein an elastic sealing piece is arranged at any end of the joint and is compressed through a connecting piece, and a connecting thread is arranged at the other end of the joint;
test tube jacks are concentrically formed in the joint, the elastic sealing element and the connecting piece;
the connecting piece compresses tightly elastic sealing element, the test tube jack on the elastic sealing element contracts to the axle center.
2. The sealed container sampling joint of claim 1, wherein a circular groove is concentrically formed at any end of the joint, the elastic sealing member is arranged in the circular groove, the outer end of the elastic sealing member extends out of the joint, and the connecting member is a screw cap connected through threads;
the test tube jack on the nut comprises round hole and the bell mouth that sets up with one heart, the round hole is close to elastic sealing element just elastic sealing element with the inner wall of round hole contacts, the path end of bell mouth is kept away from elastic sealing element just is less than the internal diameter of round hole.
3. The sealed container sampling adapter of claim 2, wherein said elastic sealing member comprises an annular sealing member and a cartridge type sealing member, said annular sealing member is disposed in said circular groove, and said cartridge type sealing member is in contact with an inner wall of said circular hole.
4. The sealing joint for sampling of the closed container according to claim 3, wherein the annular sealing member is lower than the outer end face of the circular groove, an elastic pressing ring is arranged in the circular groove and on the outer side of the annular sealing member, and the elastic pressing ring is clamped between the outer wall of the cylinder-shaped sealing member and the inner wall of the circular groove.
5. The sealing joint for sampling of the closed container according to claim 3, wherein the annular sealing member is lower than the outer end face of the circular groove, a spot facing is arranged at the outer end of the circular groove, an elastic pressing ring is arranged on the outer side of the annular sealing member in the spot facing, and the elastic pressing ring is clamped between the outer wall of the cylinder-shaped sealing member and the inner wall of the spot facing.
6. The sealing joint for sampling of the closed container according to claim 4, wherein an annular groove is formed in the screw cap, an annular top plate is arranged in the annular groove through a plurality of springs, and the annular top plate can abut against the elastic pressing ring.
7. The sealing joint for sampling of the closed container as claimed in claim 3, wherein the annular sealing member and the cylindrical sealing member are integrally formed and made of silicone.
8. The sealing joint for sampling the closed container as claimed in claim 1, wherein the contact surface between the elastic sealing member and the joint is a curved surface with a high middle part and a low periphery; or/and the contact surface of the elastic sealing element and the connecting piece is a curved surface with a high middle part and a low periphery.
9. The sealed joint for closed container sampling according to any one of claims 1-8, further comprising a connecting member of a test tube and an air pump, wherein the connecting member comprises a connecting block, the outer wall of one end of the connecting block is provided with an external thread connected with the air pump, the other end of the connecting block is concentrically provided with a stepped hole, the stepped hole is sequentially provided with a small-diameter hole, a middle-diameter hole and a large-diameter hole from one end of the external thread, the small-diameter hole is concentrically provided with a hollow elastic column, the middle-diameter hole is internally provided with an elastic ring at the outer side of the elastic column, the inner wall of the elastic ring is in contact with the outer wall of the elastic column, the large-diameter hole is internally provided with an extrusion block through threaded connection, the extrusion block is concentrically provided with an extrusion hole, the extrusion hole comprises a straight hole section and a tapered hole section, and the straight hole section is close to the elastic ring, when the inner wall of the conical hole section is contacted with the outer wall of the elastic ring, the elastic ring deforms towards the center;
and a test tube outlet is reserved on the extrusion block.
10. The sealing joint for sampling of a closed container as claimed in claim 9, wherein an annular table is externally connected to one end of the elastic column close to the small-diameter hole, and a plurality of elastic strips are locally arranged on the end surface of the elastic ring close to the extrusion hole in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022890220.XU CN213745345U (en) | 2020-12-03 | 2020-12-03 | Sealing joint for sampling of closed container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022890220.XU CN213745345U (en) | 2020-12-03 | 2020-12-03 | Sealing joint for sampling of closed container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213745345U true CN213745345U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022890220.XU Active CN213745345U (en) | 2020-12-03 | 2020-12-03 | Sealing joint for sampling of closed container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213745345U (en) |
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2020
- 2020-12-03 CN CN202022890220.XU patent/CN213745345U/en active Active
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