CN112923152A - Multi-port connector for vacuumizing - Google Patents
Multi-port connector for vacuumizing Download PDFInfo
- Publication number
- CN112923152A CN112923152A CN202110134554.0A CN202110134554A CN112923152A CN 112923152 A CN112923152 A CN 112923152A CN 202110134554 A CN202110134554 A CN 202110134554A CN 112923152 A CN112923152 A CN 112923152A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- valve
- hose
- pipe
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 229920000459 Nitrile rubber Polymers 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 240000009087 Crescentia cujete Species 0.000 abstract description 2
- 235000005983 Crescentia cujete Nutrition 0.000 abstract description 2
- 235000009797 Lagenaria vulgaris Nutrition 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/02—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
- F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a multi-port vacuumizing connector which comprises a shell, wherein the bottom of the shell is connected with a main air inlet pipe, the top of the shell is connected with at least one air outlet pipe, and the air outlet pipe is connected with a hose. The device can solve the problems of poor sealing performance, easy leakage and low efficiency in pipe sealing of the vacuumizing connector used in vacuumizing in the prior art, can increase the number of the connectors for vacuumizing, and can effectively improve the pipe sealing efficiency; the vacuum baffle valve is arranged on the air outlet pipe, so that the influence of other two interfaces can not be caused when a single interface seals the pipe; the sealing ring is arranged at the joint of the hose, so that the requirement on vacuum degree can be ensured; the hose can be held by hand, and the local unfused part of calabash waist is fused again when conveniently sealing the pipe.
Description
Technical Field
The invention belongs to the field of vacuum pipe sealing equipment, and particularly relates to a connector for multi-port vacuumizing.
Background
Generally, a specific space filled with a pressure lower than atmospheric pressure is referred to as vacuum, and if heating, heat retention, and other processes of general heat treatment are performed in a negative pressure atmosphere, vacuum heat treatment is performed. The vacuum heat treatment furnace has a series of outstanding advantages of no oxidation, no decarburization, capability of degassing and degreasing, good surface quality of samples, small deformation, excellent comprehensive mechanical property, no pollution, no public nuisance, high automation degree and the like. However, the vacuum heat treatment furnace is expensive and high in maintenance cost, and a common laboratory does not select the vacuum heat treatment furnace, but selects to perform vacuum tube sealing on a sample firstly and then places the sample into a box furnace for heat treatment. This has the advantage of saving space and financial resources.
At present, more and more heat treatment experiments need to be carried out in a vacuum environment, and the heat treatment vacuum experiments all have certain vacuum degree requirements, so that the method of firstly carrying out vacuum tube sealing on a sample and then carrying out heat treatment is a simple and efficient method.
When the vacuum tube sealing is carried out, the vacuumizing interface is required to be connected with the vacuum tube sealing for vacuumizing, and the subsequent tube sealing step can be carried out after the certain vacuum degree is reached. The existing problems are as follows: the sealing performance of the vacuumizing joint used during vacuumizing is poor; the inner silica gel is difficult to seal and surround the quartz tube without leakage; the quartz tube opening is easy to crack during vacuum pumping; the pipe is sealed after the vacuum is pumped to meet the requirement of vacuum degree, only one pipe can be sealed at one time, and the efficiency is low; when the pipe is sealed, the local part is easy to be not fused.
Disclosure of Invention
The invention aims to provide a multi-port vacuum connector, which solves the problem that a quartz pipe port is easy to crack due to a vacuum connector used in vacuum pumping in the prior art.
The invention adopts the technical scheme that the connector for vacuumizing with multiple openings is characterized by comprising a shell, wherein the shell is of a hollow structure, a main air inlet pipe communicated with the inner cavity of the shell is fixedly connected to one end of the shell, an air inlet valve is fixedly connected to the outer side of the shell, at least one air outlet pipe fixedly connected with the other end of the shell is arranged at the other end of the shell, the air outlet pipe is communicated with the inner cavity of the shell, and the air outlet pipe is connected with a hose.
The invention is also characterized in that:
the air outlet pipe is provided with a vacuum baffle valve, the vacuum baffle valve consists of a valve and a baffle, and the baffle is inserted in the valve;
a straight-through pipe joint (4) is used at the interface of the air outlet pipe (5) and the hose (6), and a sealing ring (3) is arranged inside the straight-through pipe joint (4);
the sealing ring is made of NBR nitrile rubber;
the shell is made of 304 stainless steel;
the hose is a double-layer stainless steel metal hose;
the vacuum flapper valve 2 is embodied as a GI-50 high vacuum butterfly valve.
The invention has the beneficial effects that:
(1) the multi-port vacuumizing connector has multiple ports, and the pipe sealing efficiency can be effectively improved.
(2) Due to the arrangement of the vacuum baffle valve, the single interface is not influenced by other two interfaces when being sealed.
(3) The NBR nitrile rubber sealing ring is arranged at the joint of the hose, so that the requirement on vacuum degree can be met.
(4) The hose can be held by hand, and the local unfused part of calabash waist is fused again when conveniently sealing the pipe.
(5) The protective gas can be argon, nitrogen or helium, and the requirements of different experiments are met.
(6) The invention has simple structure, saves space and is convenient to install and use.
Drawings
FIG. 1 is a detail exploded view of a multi-port vacuum fitting of the present invention;
FIG. 2 is a block diagram of a multi-port vacuum adapter of the present invention;
FIG. 3 is a schematic view of a vacuum flapper valve arrangement of a multiple port vacuum fitting of the present invention.
In the figure, 1, a shell, 2, a vacuum baffle valve, 3, a sealing ring, 4, a straight-through pipe joint, 5, an air outlet pipe, 6, a hose, 7, a main air inlet pipe, 8, an air inlet valve, 9, a valve and 10, baffles.
Detailed Description
The present invention will be described in detail with reference to fig. 1, 2, 3 and the following detailed description.
The invention relates to a multi-port vacuum-pumping connector, which comprises a shell 1 as shown in figures 1 and 2, wherein the shell 1 is of a hollow structure, one end of the shell 1 is fixedly connected with a main air inlet pipe 7 communicated with an inner cavity of the shell 1, a thread is arranged inside the main air inlet pipe 7 and is connected with equipment, an air inlet valve 8 fixedly connected with the outer side of the shell 1 is used for introducing argon, at least one air outlet pipe 5 is arranged at the other end of the shell 1, the air outlet pipe 5 is connected with the inner cavity of the shell 1, a vacuum baffle valve 2 is arranged on the air outlet pipe 5, the vacuum baffle valve 2 is shown in figure 3, the tail end of the air outlet pipe 5 is connected with a hose 6, in order to prevent a gap between the air outlet pipe 5 and the hose 6, a straight-through pipe connector.
The material of the sealing ring 3 is NBR nitrile rubber.
The material of the shell 1 is 304 stainless steel.
The hose 5 selects a double-layer stainless steel metal hose, a special multilayer insulation composite material is added in an interlayer of the double-layer stainless steel metal hose, a high vacuum state is kept, the radius is small, the hose is easy to bend, and the outer surface of the hose is not frozen or frosted when the hose is used.
In order to meet the requirement of the experiment on the vacuum degree, a mechanical pump is selected for pumping and matching, and the vacuum degree can reach 1 multiplied by 10-6Pa。
The air inlet valve 8 on the side surface of the shell 1 can be protected by filling argon, and can also be filled with nitrogen or helium, so that various experimental requirements can be met.
The vacuum baffle valve 2 is arranged on the air outlet pipe 5, the vacuum baffle valve 2 is composed of a valve 9 and a baffle 10, the baffle 10 is inserted into the valve 9, the vacuum baffle valve 2 can ensure that when a plurality of air outlet pipes 5 are used, the interfaces are not affected when the pipes are sealed, the independence of each interface is ensured, when the vacuum baffle valve 2 is used, the sliding baffle 10 is used for controlling a switch, and the sliding vacuum baffle valve 2 is particularly a GI-50 high-vacuum butterfly valve.
The using method comprises the following steps: when the multi-port vacuumizing joint is needed, vacuumizing equipment is connected with a main air inlet, a raw rubber belt or other sealing articles can be used for sealing an interface outside the interface, a hose of an air bottle is connected to an air inlet valve for protecting air, a vacuum baffle valve of an air outlet needed to be used is opened, and a quartz tube needed to be packaged is connected to a vacuum hose corresponding to the air outlet.
Claims (7)
1. The utility model provides a many mouthfuls are joint for evacuation which characterized in that, includes casing (1), casing (1) is hollow structure, and casing (1) one end rigid coupling has total intake pipe (7) of intercommunication casing (1) inner chamber, and casing (1) outside rigid coupling has admission valve (8), and the casing (1) other end has at least one outlet duct (5) of rigid coupling with it, and outlet duct (5) intercommunication casing (1) inner chamber, and outlet duct (5) are connected with hose (6).
2. A multi-port vacuum connector according to claim 1, wherein the outlet pipe (5) is provided with a vacuum baffle valve (2), the vacuum baffle valve (2) is composed of a valve (9) and a baffle (10), and the baffle (10) is inserted in the valve (9).
3. The connector for multi-port vacuum pumping according to claim 1, characterized in that a straight pipe joint (4) is used at the interface of the air outlet pipe (5) and the hose (6), and a sealing ring (3) is arranged inside the straight pipe joint (4).
4. A multi-port vacuum connector as claimed in claim 3, wherein the sealing ring (3) is NBR nitrile rubber.
5. A multi-port vacuum connector as claimed in claim 1, wherein the material of the housing (1) is 304 stainless steel.
6. A multi-port vacuum connector as claimed in claim 1, wherein the hose (6) is a double-layer stainless steel metal hose.
7. A multi-port vacuum fitting according to claim 1, wherein said vacuum flapper valve 2 is embodied as a GI-50 high vacuum butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110134554.0A CN112923152A (en) | 2021-01-29 | 2021-01-29 | Multi-port connector for vacuumizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110134554.0A CN112923152A (en) | 2021-01-29 | 2021-01-29 | Multi-port connector for vacuumizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112923152A true CN112923152A (en) | 2021-06-08 |
Family
ID=76169117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110134554.0A Pending CN112923152A (en) | 2021-01-29 | 2021-01-29 | Multi-port connector for vacuumizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112923152A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314448A (en) * | 1963-02-28 | 1967-04-18 | Siemens Ag | Sequentially operated plural valve for vacuum installation |
| CN201344287Y (en) * | 2008-10-20 | 2009-11-11 | 温晋轩 | Vacuum valve of continuous evacuation device |
| CN104456068A (en) * | 2014-11-07 | 2015-03-25 | 广西大学 | Vacuumizing and protective gas charging device and application method thereof |
| CN107091345A (en) * | 2017-04-25 | 2017-08-25 | 浙江飞越机电有限公司 | Charging machine passage control valve and the path control method vacuumized using the control valve |
| CN208399975U (en) * | 2018-07-23 | 2019-01-18 | 独山中科晶元信息材料有限公司 | A kind of parallel vacuum system |
| CN211474949U (en) * | 2019-08-15 | 2020-09-11 | 上海汇海真空机械设备有限公司 | Special vacuum pumping valve for vacuum nitrogen-filled insect killing and sterilizing equipment |
-
2021
- 2021-01-29 CN CN202110134554.0A patent/CN112923152A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314448A (en) * | 1963-02-28 | 1967-04-18 | Siemens Ag | Sequentially operated plural valve for vacuum installation |
| CN201344287Y (en) * | 2008-10-20 | 2009-11-11 | 温晋轩 | Vacuum valve of continuous evacuation device |
| CN104456068A (en) * | 2014-11-07 | 2015-03-25 | 广西大学 | Vacuumizing and protective gas charging device and application method thereof |
| CN107091345A (en) * | 2017-04-25 | 2017-08-25 | 浙江飞越机电有限公司 | Charging machine passage control valve and the path control method vacuumized using the control valve |
| CN208399975U (en) * | 2018-07-23 | 2019-01-18 | 独山中科晶元信息材料有限公司 | A kind of parallel vacuum system |
| CN211474949U (en) * | 2019-08-15 | 2020-09-11 | 上海汇海真空机械设备有限公司 | Special vacuum pumping valve for vacuum nitrogen-filled insect killing and sterilizing equipment |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210608 |