CN111223743B - Buckling lock type quick sealing device - Google Patents
Buckling lock type quick sealing device Download PDFInfo
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- CN111223743B CN111223743B CN201811411825.7A CN201811411825A CN111223743B CN 111223743 B CN111223743 B CN 111223743B CN 201811411825 A CN201811411825 A CN 201811411825A CN 111223743 B CN111223743 B CN 111223743B
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- sealing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0495—Vacuum locks; Valves
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- Analytical Chemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention relates to a mass spectrometry instrument, in particular to a buckling lock type rapid sealing device. The structure comprises a quick seal cavity, a buckling lock and a seal ring. A sealing ring groove, a sealing ring and an assembly body needing to be sealed are respectively arranged in the quick sealing cavity along the installation sequence direction of the mass spectrometer, and all the devices are of flat plate structures with middle through holes and are arranged in parallel, coaxially and in an insulating mode. The four sides of the outer wall of the quick sealing device are provided with the buckling locks, so that the four sides of the quick sealing device are uniformly and coaxially stressed, the sealing characteristic is ensured, and the manufacturing cost and the dismounting time are saved. This novel detain quick sealing device of lock formula technique has improved the dismouting efficiency of mass spectrometry instrument in daily work such as maintenance inspection and repair greatly, has saved manpower and materials and time greatly when guaranteeing sealing characteristic, has wide application prospect in the analytical instrument field that uses such as environmental monitoring, food safety, medical diagnosis.
Description
Technical Field
The invention relates to a mass spectrometry instrument, in particular to a buckling lock type rapid sealing device. This novel detain quick sealing device of lock formula technique has improved the dismouting efficiency of mass spectrometry instrument in daily work such as maintenance inspection and repair greatly, has saved manpower and materials and time greatly when guaranteeing sealing characteristic, has wide application prospect in the analytical instrument field that uses such as environmental monitoring, food safety, medical diagnosis.
Background
The mass spectrometer belongs to a precise instrument in analytical chemistry, and the mass spectrometer is required to have higher sensitivity and resolution ratio when analyzing sample substances in the analytical chemistry, but the sensitivity and the resolution ratio of the mass spectrometer are improved, so that high-precision assembling parts are used for reasonable collocation when the mass spectrometer is assembled, and good sealing property is required to be kept for the use condition of the mass spectrometer to ensure the required vacuum condition in the mass spectrometer and the normal work of the mass spectrometer. However, the traditional sealing device is complex in structural design and complex in assembly operation, and needs to be very careful to ensure whether the sealing performance in the installation process is reasonably and perfectly assembled, so that the design of the sealing device is very inconvenient for the maintenance and inspection and the maintenance and the disassembly and the assembly of instruments.
Therefore, the development of a snap lock type quick sealing device is of great significance.
Disclosure of Invention
The invention aims to provide a snap lock type quick sealing device. This novel detain quick sealing device of lock formula technique has improved the dismouting efficiency of mass spectrometry instrument in daily work such as maintenance inspection and repair greatly, has saved manpower and materials and time greatly when guaranteeing sealing characteristic, has wide application prospect in the analytical instrument field that uses such as environmental monitoring, food safety, medical diagnosis.
In order to achieve the purpose, the invention adopts the technical scheme that:
the device comprises a cylindrical cavity with an upper end opening and a lower end being closed, wherein a gland with a through hole in the middle is arranged at the upper opening end of the cavity, the gland is detachably connected with the cavity, a cylinder with an upper end and a lower end being open is coaxially arranged in the cavity, the bottom of the cavity where the lower opening end of the cylinder is arranged is provided with the through hole, and the lower opening end of the cylinder is hermetically connected with the bottom of the cavity;
the side wall surface of the outside of the cavity is provided with a buckling lock ring, the side wall surface of the gland is provided with a buckling lock tongue corresponding to the buckling lock ring, and the cavity is tightly connected with the gland through the quick buckling of the buckling lock ring and the buckling lock tongue;
an isolation device is arranged in the chamber and consists of 3-64 plate-shaped sealing sliding blocks with the same shape and size and two arc edges protruding clockwise or anticlockwise; a groove is arranged on one arc-shaped edge of the sealing slide block, a bulge corresponding to the groove is arranged on the other arc-shaped edge, 3-64 blocks are sequentially arranged at equal intervals along the clockwise or anticlockwise direction to form a circular isolating device, every two adjacent sealing slide blocks are inserted into the groove end of the other sealing slide block in a sliding manner from end bulges to carry out reciprocating sealed insertion or separation, a connecting rod is arranged at the edge of the lower surface of each sealing slide block, which is far away from the central axis of the circle, and the connecting rod moves the sealing slide blocks to realize the opening or closing function of the isolating device;
the lower surface of the isolating device is hermetically connected with the upper opening end of the cylinder through a sealing O ring, and the sealing O ring is arranged in a sealing ring groove arranged at the upper opening end of the cylinder; the connecting rod is positioned between the cylinder and the inner wall surface of the chamber; the upper surface of the isolating device is hermetically connected with the gland through a sealing O ring, and the sealing O ring is arranged in a sealing ring groove arranged on the lower surface of the gland; the through hole in the middle of the gland, the cylinder, the sealing O ring and the isolating device are coaxial.
The isolation device consists of n sealing sliding blocks with the same shape and size, wherein n is an integer of 3-64, each sealing sliding block comprises a first flat plate surface and a second flat plate surface, the surfaces of the first flat plate surfaces are sequentially connected by three arc line segment end points, and the n first flat plate surfaces are sequentially placed clockwise or anticlockwise at equal intervals to form a hollow circular ring; the first of the three arcs of the first flat plate-shaped plate surface is an arc line on the excircle of the 1/n radian ring; the second arc line and the third arc line are arc lines which respectively protrude clockwise or anticlockwise from one point A of the inner circle of the circular ring and two end points of the first arc line; the n points A are uniformly distributed on the inner circle of the circular ring; a connecting rod is arranged on the lower surface of the edge of the plate surface close to the first arc line;
a V-shaped protrusion is arranged on the side edge of the flat plate where the second arc line is located, and the second flat plate-shaped plate surface is arranged; the V-shaped protrusion is formed by extending the lower surfaces of the side edges to the side far away from the first flat plate-shaped plate surface and gradually shrinking inwards to the middle part along the extending direction; a triangular notch penetrating through the plate surface is arranged on the second flat plate-shaped plate surface close to the point A, one side edge of the triangular notch is positioned on the flat plate side edge where the second arc line is positioned, the second side edge is positioned on the second flat plate-shaped plate surface, and the third side edge is an opening of the notch;
a V-shaped groove which is correspondingly matched with the V-shaped protrusion is arranged on the side edge of the flat plate where the third arc line is located, and the V-shaped groove is formed by extending the lower surface of the side edge inwards the plate surface and gradually shrinking inwards to the middle part along the extension;
the sealing slide block can rotate around the shaft by taking a point which is vertical to the second flat plate-shaped plate surface and passes through the opening close to the notch on the plate surface as the shaft.
3-64 connecting rods are sequentially hinged through flexible hinges.
The chamber and the gland are made of metal such as stainless steel or non-metal material with metal plated on the surface.
The chamber, the gland and the isolating device are arranged in an insulated mode.
The diameter of the cavity and the diameter of the gland through hole are 80mm, the cavity and the gland through hole are fixedly connected through four corner screws arranged in the four corner screw through holes, and the diameter of the four corner screw through holes is 6.6 mm.
The inner diameter of the seal ring groove is 82-87.8 mm, the depth is 1.8mm, and the vacuum degree in the chamber is maintained at 1 Torr-10 Torr.
The through hole in the middle of the gland is connected with an ion outlet of a mass spectrum ionization source, the cavity is connected with an inlet of a through hole mass analyzer, and the mass analyzer is a flight time mass analyzer, a quadrupole mass analyzer or an ion trap mass analyzer.
The invention provides a snap lock type quick sealing device. In the assembling process, firstly, sealing rings are placed in sealing ring grooves in two identical quick sealing cavities, then a flat plate type device to be sealed is placed in the two identical quick sealing cavities, buckling locks on four sides of the quick sealing cavities are fastened, then the front end of the assembled quick sealing device is connected into an ionization region of a mass spectrometer, and the rear end of the assembled quick sealing device is connected into a mass analyzer of the mass spectrometer. The design finally can improve the disassembly and assembly efficiency of the mass spectrometer during daily work such as maintenance, inspection and repair, and the like, and the purposes of greatly saving manpower, material resources and time while ensuring the sealing characteristic are achieved.
Drawings
FIG. 1 is a view of an assembly of a snap lock type quick seal of the present invention;
FIG. 2 is a schematic view of a quick seal cavity with a snap lock of the snap lock type quick seal device of the present invention;
FIG. 3 is a schematic view of a quick seal housing with a snap bolt for a snap lock quick seal according to the present invention;
FIG. 4 is a schematic structural view of a quick seal cavity with a snap lock of the snap lock type quick seal device of the present invention;
the device comprises a buckling lock 1 and a cylindrical chamber with an upper opening and a lower closing end, wherein four corners of the front surface of the cylindrical chamber with the upper opening and the lower closing end are provided with 3 screw through holes, and a 4 sealing ring groove is arranged at a position close to the central point in the cylindrical chamber with the upper opening and the lower closing end;
FIG. 5 is a schematic structural view of a quick seal cavity with a snap bolt of the snap lock type quick seal device of the present invention;
the bolt fastening device comprises 5 fastening bolts and a cylindrical chamber with an upper opening and a lower end being closed, wherein four corners of the front surface of the cylindrical chamber with the upper opening and the lower end being closed are provided with 3 screw through holes, and a 4 sealing ring groove is arranged at a position close to the central point in the cylindrical chamber with the upper opening and the lower end being closed;
Detailed Description
Please refer to fig. 4 and 5, which are schematic structural diagrams according to the present invention.
The device comprises a cylindrical cavity with an upper end opening and a lower end being closed, wherein a gland with a through hole in the middle is arranged at the upper opening end of the cavity, the gland is detachably connected with the cavity, a cylinder with an upper end and a lower end being open is coaxially arranged in the cavity, the bottom of the cavity where the lower opening end of the cylinder is arranged is provided with the through hole, and the lower opening end of the cylinder is hermetically connected with the bottom of the cavity;
the side wall surface of the outer part of the cavity is provided with a buckling lock ring 1, the side wall surface of the gland is provided with a buckling lock tongue 5 corresponding to the buckling lock ring 1, and the cavity is tightly connected with the gland through the quick buckling of the buckling lock ring 1 and the buckling lock tongue 5;
an isolation device is arranged in the chamber and consists of 3-64 plate-shaped sealing sliding blocks with the same shape and size and two arc edges protruding clockwise or anticlockwise; a groove is arranged on one arc-shaped edge of the sealing slide block, a bulge corresponding to the groove is arranged on the other arc-shaped edge, 3-64 blocks are sequentially arranged at equal intervals along the clockwise or anticlockwise direction to form a circular isolating device, every two adjacent sealing slide blocks are inserted into the groove end of the other sealing slide block in a sliding manner from end bulges to carry out reciprocating sealed insertion or separation, a connecting rod is arranged at the edge of the lower surface of each sealing slide block, which is far away from the central axis of the circle, and the connecting rod moves the sealing slide blocks to realize the opening or closing function of the isolating device;
the lower surface of the isolating device is hermetically connected with the upper opening end of the cylinder through a sealing O ring, and the sealing O ring is arranged in a sealing ring groove 4 arranged at the upper opening end of the cylinder; the connecting rod is positioned between the cylinder and the inner wall surface of the chamber; the upper surface of the isolating device is hermetically connected with the gland through a sealing O ring, and the sealing O ring is arranged in a sealing ring groove 4 arranged on the lower surface of the gland; the through hole in the middle of the gland, the cylinder, the sealing O ring and the isolating device are coaxial.
The isolation device consists of n sealing sliding blocks with the same shape and size, wherein n is an integer of 3-64, each sealing sliding block comprises a first flat plate surface and a second flat plate surface, the surfaces of the first flat plate surfaces are sequentially connected by three arc line segment end points, and the n first flat plate surfaces are sequentially placed clockwise or anticlockwise at equal intervals to form a hollow circular ring; the first of the three arcs of the first flat plate-shaped plate surface is an arc line on the excircle of the 1/n radian ring; the second arc line and the third arc line are arc lines which respectively protrude clockwise or anticlockwise from one point A of the inner circle of the circular ring and two end points of the first arc line; the n points A are uniformly distributed on the inner circle of the circular ring; a connecting rod is arranged on the lower surface of the edge of the plate surface close to the first arc line;
a V-shaped protrusion is arranged on the side edge of the flat plate where the second arc line is located, and the second flat plate-shaped plate surface is arranged; the V-shaped protrusion is formed by extending the lower surfaces of the side edges to the side far away from the first flat plate-shaped plate surface and gradually shrinking inwards to the middle part along the extending direction; a triangular notch penetrating through the plate surface is arranged on the second flat plate-shaped plate surface close to the point A, one side edge of the triangular notch is positioned on the flat plate side edge where the second arc line is positioned, the second side edge is positioned on the second flat plate-shaped plate surface, and the third side edge is an opening of the notch;
a V-shaped groove which is correspondingly matched with the V-shaped protrusion is arranged on the side edge of the flat plate where the third arc line is located, and the V-shaped groove is formed by extending the lower surface of the side edge inwards the plate surface and gradually shrinking inwards to the middle part along the extension;
the sealing slide block can rotate around the shaft by taking a point which is vertical to the second flat plate-shaped plate surface and passes through the opening close to the notch on the plate surface as the shaft.
3-64 connecting rods are sequentially hinged through flexible hinges.
The chamber and the gland are made of metal such as stainless steel or non-metal material with metal plated on the surface.
The chamber, the gland and the isolating device are arranged in an insulated mode.
The diameters of the cavity and the gland through hole are 80mm, the cavity and the gland through hole are fixedly connected through four corner screws arranged in the four corner screw through holes, and the diameter of the four corner screw through hole 3 is 6.6 mm.
The inner diameter of the seal ring groove 4 is 82 to 87.8mm, the depth is 1.8mm, and the degree of vacuum in the chamber is maintained at 1Torr to 10 Torr.
The through hole in the middle of the gland is connected with an ion outlet of a mass spectrum ionization source, the cavity is connected with an inlet of a through hole mass analyzer, and the mass analyzer is a flight time mass analyzer, a quadrupole mass analyzer or an ion trap mass analyzer.
Claims (7)
1. The utility model provides a quick sealing device of buckle lock-type which characterized in that:
the device comprises a cylindrical cavity with an upper end opening and a lower end being closed, wherein a gland with a through hole in the middle is arranged at the upper opening end of the cavity, the gland is detachably connected with the cavity, a cylinder with an upper end and a lower end being open is coaxially arranged in the cavity, the bottom of the cavity where the lower opening end of the cylinder is arranged is provided with the through hole, and the lower opening end of the cylinder is hermetically connected with the bottom of the cavity;
a buckling lock ring (1) is arranged on the side wall surface outside the chamber, a buckling lock tongue (5) corresponding to the buckling lock ring (1) is arranged on the side wall surface of the gland, and the chamber is tightly connected with the gland through the quick buckling of the buckling lock ring (1) and the buckling lock tongue (5);
an isolation device is arranged in the cavity and consists of 3-64 plate-shaped sealing sliders with the same shape and size and two arc edges protruding clockwise or anticlockwise, a groove is formed in one arc edge of each sealing slider, a protrusion corresponding to the groove is formed in the other arc edge of each sealing slider, 3-64 blocks are sequentially arranged at equal intervals along the clockwise or anticlockwise direction to form a circular isolation device, every two adjacent sealing sliders are inserted into the groove end of the other sealing slider in a sliding mode from end protrusions to carry out reciprocating sealed insertion or separation, a connecting rod is arranged at the edge of the lower surface of each sealing slider, which is far away from the circular central axis, and the sealing sliders are moved by the connecting rods to realize the opening or closing function of the isolation device;
the lower surface of the isolating device is hermetically connected with the upper opening end of the cylinder through a sealing O ring, and the sealing O ring is arranged in a sealing ring groove (4) arranged at the upper opening end of the cylinder; the connecting rod is positioned between the cylinder and the inner wall surface of the chamber; the upper surface of the isolating device is hermetically connected with the gland through a sealing O ring, and the sealing O ring is arranged in a sealing ring groove (4) arranged on the lower surface of the gland; the through hole in the middle of the gland, the cylinder, the sealing O ring and the isolating device are coaxial;
the isolation device consists of n sealing sliding blocks with the same shape and size, wherein n is an integer of 3-64, each sealing sliding block comprises a first flat plate surface and a second flat plate surface, the surfaces of the first flat plate surfaces are sequentially connected by three arc line segment end points, and the n first flat plate surfaces are sequentially placed clockwise or anticlockwise at equal intervals to form a hollow circular ring; the first of the three arcs of the first flat plate-shaped plate surface is an arc line on the excircle of the 1/n radian ring; the second arc line and the third arc line are arc lines which respectively protrude clockwise or anticlockwise from one point A of the inner circle of the circular ring and two end points of the first arc line; the n points A are uniformly distributed on the inner circle of the circular ring; a connecting rod is arranged on the lower surface of the edge of the plate surface close to the first arc line;
a V-shaped protrusion is arranged on the side edge of the flat plate where the second arc line is located, and the second flat plate-shaped plate surface is arranged; the V-shaped protrusion is formed by extending the lower surfaces of the side edges to the side far away from the first flat plate-shaped plate surface and gradually shrinking inwards to the middle part along the extending direction; a triangular notch penetrating through the plate surface is arranged on the second flat plate-shaped plate surface close to the point A, one side edge of the triangular notch is positioned on the flat plate side edge where the second arc line is positioned, the second side edge is positioned on the second flat plate-shaped plate surface, and the third side edge is an opening of the notch;
a V-shaped groove which is correspondingly matched with the V-shaped protrusion is arranged on the side edge of the flat plate where the third arc line is located, and the V-shaped groove is formed by extending the lower surface of the side edge inwards the plate surface and gradually shrinking inwards to the middle part along the extension;
the sealing slide block can rotate around the shaft by taking a point which is vertical to the second flat plate-shaped plate surface and passes through the opening close to the notch on the plate surface as the shaft.
2. The snap-lock quick seal according to claim 1, wherein:
3-64 connecting rods are sequentially hinged through flexible hinges.
3. The snap-lock quick seal according to claim 1, wherein:
the chamber and gland materials are stainless steel metal or non-metallic materials with metal plated surfaces.
4. The snap-lock quick seal according to claim 1, wherein:
the chamber, the gland and the isolating device are arranged in an insulated mode.
5. The snap-lock quick seal according to claim 1, wherein:
the diameters of the cavity and the gland through hole are 80mm, the cavity and the gland through hole are fixedly connected through four corner screws arranged in the four corner screw through holes, and the diameter of the four corner screw through hole (3) is 6.6 mm.
6. The snap-lock quick seal according to claim 1, wherein:
the inner diameter of the seal ring groove (4) is 82-87.8 mm, the depth is 1.8mm, and the vacuum degree in the chamber is maintained at 1 Torr-10 Torr.
7. The snap-lock quick seal according to claim 1, wherein:
the through hole in the middle of the gland is connected with an ion outlet of a mass spectrum ionization source, the cavity is connected with an inlet of a through hole mass analyzer, and the mass analyzer is a flight time mass analyzer, a quadrupole mass analyzer or an ion trap mass analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811411825.7A CN111223743B (en) | 2018-11-25 | 2018-11-25 | Buckling lock type quick sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811411825.7A CN111223743B (en) | 2018-11-25 | 2018-11-25 | Buckling lock type quick sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111223743A CN111223743A (en) | 2020-06-02 |
| CN111223743B true CN111223743B (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811411825.7A Active CN111223743B (en) | 2018-11-25 | 2018-11-25 | Buckling lock type quick sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111223743B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8598488B2 (en) * | 2011-12-23 | 2013-12-03 | Electro Scientific Industries, Inc. | Method and apparatus for adjusting radiation spot size |
| CN204424203U (en) * | 2015-02-16 | 2015-06-24 | 江苏天瑞仪器股份有限公司 | A kind of mass spectrometer assembly and mass spectrometric syndeton |
| CN205716164U (en) * | 2016-06-24 | 2016-11-23 | 西安长庆科技工程有限责任公司 | A kind of easy-to-dismount oil field ground pipe connector |
| CN206904430U (en) * | 2017-06-14 | 2018-01-19 | 天津欧陆宝新材料科技有限公司 | A kind of easy-to-mount assembling pipe joint |
| CN208138663U (en) * | 2018-04-28 | 2018-11-23 | 广东电网有限责任公司 | A kind of sulfur hexafluoride gas equipment and its test fast connector |
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- 2018-11-25 CN CN201811411825.7A patent/CN111223743B/en active Active
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