CN112032441A - Quick connection device for micro-differential pressure ventilation flow sensor - Google Patents
Quick connection device for micro-differential pressure ventilation flow sensor Download PDFInfo
- Publication number
- CN112032441A CN112032441A CN202010961121.8A CN202010961121A CN112032441A CN 112032441 A CN112032441 A CN 112032441A CN 202010961121 A CN202010961121 A CN 202010961121A CN 112032441 A CN112032441 A CN 112032441A
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- China
- Prior art keywords
- quick
- joint
- spring
- flow sensor
- differential pressure
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- 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.)
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
- F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
- F16L37/248—Bayonet-type couplings
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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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/009—Combination of a quick-acting type coupling and a conventional one
Abstract
A quick connection device for a micro-differential pressure ventilation flow sensor relates to a quick connection device. The invention solves the problems of long disassembly and assembly time and high cost of the existing gas volume flow sensor joint. According to the invention, an annular groove is formed in one side of a quick connector, a flange step is formed in the outer side wall of the other side of the quick connector, a sealing ring is sleeved on the groove of the quick connector, a spring is sleeved on the quick connector, one end part of the spring is clamped on the flange step, the quick connector is installed in a pressing cap, the quick connector extends out of a step hole end of the pressing cap and keeps extending out after the spring is compressed, a pipeline connector is screwed into the quick connector and is installed in the end part of the quick connector positioned on one side of the spring, a protection connector is installed on the quick connector, the protection connector is positioned on one side of the annular groove, and the protection connector is clamped in the pressing cap. The invention is used for the micro differential pressure ventilation flow sensor.
Description
Technical Field
The invention relates to a quick connection device, in particular to a quick connection device for a micro-differential pressure ventilation flow sensor, and belongs to the field of gas volume flow sensors.
Background
The fluid flow is a parameter which must be measured in industrial control and scientific experiments, and the flow process can be mastered by measuring the fluid flow, so that the production process can be automatically controlled, and efficient energy management is implemented, thereby ensuring the product quality, improving the production efficiency and reducing the energy consumption. The measurement of the physical quantity has important significance in the watershed of automobiles, power generation, oil and gas transmission, metallurgy, aerospace, microelectronic manufacturing, medical treatment and the like. For example, in the field of aerospace, flow measurement of duct gas (harmful gas, oxygen, etc.) inside a space station is a key parameter affecting the survival of astronauts. In the critical gas flow measurement situation, it is a very important task to quickly replace the flow sensor. The joint of the existing gas volume flow sensor is connected in a welding mode, when a gas volume flow converter is damaged or fails, the converter cannot be replaced in time, the whole sensor can only be replaced, and the problems of long disassembly and assembly time and high cost exist.
In conclusion, the conventional gas volume flow sensor connector has the problems of long disassembly and assembly time and high cost.
Disclosure of Invention
The invention aims to solve the problems of long disassembly and assembly time and high cost of the existing gas volume flow sensor joint. Further provided is a quick-connect device for use on a micro differential pressure ventilation flow sensor.
The technical scheme of the invention is that a quick connection device used on a micro-pressure difference ventilation flow sensor comprises a protection joint 1, a quick connection joint 2, a pressure cap 3, a pipeline joint 4, a spring 5 and a sealing ring 6, wherein one side of the quick connection joint 2 is provided with an annular groove 2-1, the outer side wall of the other side of the quick connection joint 2 is provided with a flange step, the sealing ring 6 is sleeved on the groove 2-1 of the quick connection joint 2, the spring 5 is sleeved on the quick connection joint 2, one end part of the spring 5 is clamped on the flange step, the quick connection joint 2 is arranged in the pressure cap 3, the quick connection joint 2 extends out from the step hole end of the pressure cap 3 and keeps extending out after the spring 5 is compressed, the pipeline joint 4 is screwed into the quick connection joint 2, the pipeline joint 4 is arranged in the end part of the quick connection joint 2 positioned on one side of the spring 5, the protection joint 1 is arranged on the quick connection joint 2, and the protection joint 1 is positioned, the protective joint 1 is clamped in the pressing cap 3.
Furthermore, the quick connector 2 is a hollow cylinder, and the other side end face of the quick connector 2 is internally provided with female threads 2-3.
Furthermore, the pressing cap 3 is in a circular tube shape, one end of the pressing cap 3 is provided with two clamping grooves 3-1 which are 180 degrees, and the other end of the pressing cap 3 is provided with a step hole 3-2.
Further, the spring 5 is made of a constant-elasticity alloy.
Further, the diameter of the spring wire of the spring 5 is 0.7mm, the effective number of turns of the spring 5 is 11, and both ends of the spring 5 are ground flat.
Further, a spring 5 is installed in a gap between the quick connector 2 and the press cap 3.
Furthermore, one end of the protection joint 1 is a pagoda head 1-2, and the outer side of the other end of the protection joint 1 is provided with a cylindrical bayonet lock 1-1 which is matched with a clamping groove 3-1 of the pressing cap 3 for installation.
Furthermore, the inner side wall of the other end of the protective joint 1 is provided with a mounting hole 1-3, and the opening end of the mounting hole 1-3 is provided with a 40-degree cone angle 1-4.
Furthermore, the bottom end of the pipe diameter of the pagoda head 1-2 of the protective joint 1 is provided with an embossing step.
Compared with the prior art, the invention has the following improvement effects:
when the quick-connection device is assembled, the spring is sleeved into the flange of the quick-connection joint from the female thread end of the quick-connection joint, the quick-connection joint provided with the spring is assembled into the pressing cap, the spring is compressed, the quick-connection joint extends out of the step hole end of the pressing cap and is kept, and the pipeline joint is screwed into the quick-connection joint; keeping the compression state of the spring, sleeving the sealing ring into the groove of the quick-connection joint, then installing the protective joint in a matched manner from the sealing end of the quick-connection joint, rotating the protective joint, and screwing the cylindrical clamping pin into the clamping groove of the pressing cap to realize the assembly of the quick-connection device. When the micro differential pressure ventilation flow sensor is replaced and installed, the protection joint is taken down, and the protection joint with another requirement is replaced, so that the micro differential pressure ventilation flow sensor can be rapidly installed and replaced. The whole converter does not need to be completely replaced, and the cost is saved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention. Fig. 2 is a schematic structural view of a quick coupling. Fig. 3 is a front cross-sectional view of the saver sub. Fig. 4 is an external structural view of the protection joint. Fig. 5 is a schematic structural view of the press cap. Fig. 6 is a schematic view of the structure of the pipe joint. Fig. 7 is a schematic view of the structure of the spring. Fig. 8 is a schematic diagram of the present invention mounted on a flow sensor (where a represents the location where the quick connect device of the present invention is mounted for use on a micro-differential pressure vent flow sensor).
Detailed Description
The first embodiment is as follows: the embodiment is described by combining fig. 1 to 8, and the quick connection device for the micro-differential pressure ventilation flow sensor of the embodiment comprises a protection joint 1, a quick connection joint 2, a pressure cap 3, a pipeline joint 4, a spring 5 and a sealing ring 6, wherein one side of the quick connection joint 2 is provided with an annular groove 2-1, the outer side wall of the other side of the quick connection joint 2 is provided with a flange step, the sealing ring 6 is sleeved on the groove 2-1 of the quick connection joint 2, the spring 5 is sleeved on the quick connection joint 2, one end part of the spring 5 is clamped on the flange step, the quick connection joint 2 is arranged in the pressure cap 3, the quick connection joint 2 extends out of the step hole end of the pressure cap 3 and keeps extending out after the spring 5 is compressed, the pipeline joint 4 is screwed into the quick connection joint 2, the pipeline joint 4 is arranged in the end part of the quick connection joint 2 positioned on one side of the spring 5, the protection joint 1 is arranged on the quick, and the protective joint 1 is positioned at one side of the annular groove 2-1, and the protective joint 1 is clamped in the pressing cap 3.
Except for the spring, the rest of the embodiment is made of aluminum.
The pipeline joint 4 of the present embodiment is in the form of a flange, and is shown in detail in fig. 6, the middle hollow of the pipeline joint 4 is a pipeline, male threads are arranged on the pipeline to a flange plate, and the pipeline joint is welded to a converter of a micro differential pressure ventilation flow sensor;
the quick connector 2 of the embodiment is a cylinder, the middle of the quick connector is hollow and is a pipeline, and one end part of the pipeline is provided with female threads 2-3 and is matched with the pipeline connector 4; the other end is provided with an annular groove 2-1, a sealing ring 6 is arranged, and a flange step 2-2 is arranged between the annular groove 2-1 and the female thread.
The second embodiment is as follows: referring to fig. 1 and 2, the quick-connect coupling 2 of the present embodiment is a hollow cylinder, and the other side end surface of the quick-connect coupling 2 is provided with female threads 2-3. So set up, be convenient for with the pipeline joint 4 cooperation installation. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: the embodiment is described with reference to fig. 1 and 5, the pressing cap 3 of the embodiment is in a circular tube shape, one end of the pressing cap 3 is provided with two clamping grooves 3-1 which are 180 degrees, and the other end of the pressing cap 3 is provided with a stepped hole 3-2. According to the arrangement, the pressing cap is in a circular tube shape, two clamping grooves which are 180 degrees are formed in one end of the pressing cap, the other end of the pressing cap is a stepped hole, the stepped hole is matched with the quick-connection joint, and the quick-connection joint can penetrate through the stepped hole. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 1 and 7, and the spring 5 of the present embodiment is made of a constant spring alloy. So set up, be convenient for satisfy the user demand. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 1 and 7, the spring 5 of the present embodiment has a wire diameter of 0.7mm, an effective number of turns of the spring 5 is 11, and both ends of the spring 5 are ground. Through the arrangement, two ends of the spring 5 are ground flat, so that the spring is fully contacted with the stepped hole of the pressing cap and the quick-connection joint flange; other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1, and the spring 5 of the present embodiment is attached to the gap between the quick connector 2 and the pressure cap 3. So set up, the spring is arranged in and is pressed the clearance between cap and the quick-connect coupling, and initial condition is in by the compression state. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: the embodiment is described with reference to fig. 1, fig. 3 and fig. 4, one end of the protection joint 1 of the embodiment is a pagoda head 1-2, and a cylindrical bayonet pin 1-1 is arranged outside the other end of the protection joint 1 and is installed in cooperation with a bayonet slot 3-1 of a pressing cap 3. Other components and connection relations are the same as those of any one of the first to sixth embodiments.
The specific implementation mode is eight: referring to fig. 1, 7 and 8, the protection joint 1 of the present embodiment is provided with mounting holes 1-3 on the inner side wall of the other end thereof, and the opening ends of the mounting holes 1-3 are provided with 40 ° taper angles 1-4. According to the arrangement, one end of the protection joint is a pagoda head, the diameter of the protection joint is customized according to actual requirements, and a cylindrical clamping pin is arranged on the outer side of the other end of the protection joint and is matched with a clamping groove of the pressing cap; the aperture of the end is thick, and the opening end is provided with a 40-degree taper angle and is matched with the sealing end of the quick connector for installation; other constitutions and connection relations are the same as those of any one of the first to seventh embodiments.
The specific implementation method nine: the present embodiment is described with reference to fig. 1, fig. 7, and fig. 8, and the bottom end of the pipe diameter of the pagoda head 1-2 of the protection joint 1 of the present embodiment is provided with an embossing step. So set up, be convenient for protection joint's installation. Other compositions and connection relations are the same as those of any one of the first to eighth embodiments.
The working principle of the invention is explained in conjunction with fig. 1 to 8:
assembling a sealing ring 6 into a groove of a quick connector 2, sleeving a spring 5 into a flange of the quick connector 2 from a female thread end of the quick connector 2, assembling the quick connector 2 provided with the spring 5 into a pressure cap 3 from a clamping groove end, compressing the spring 5 to enable the quick connector 2 to extend out of and keep a step hole end of the pressure cap 3, and screwing a pipeline connector 4 into the quick connector 2; keeping the compression state of the spring 5, then installing the protective joint from the sealing end of the quick-connection joint 2 in a matching way, rotating the protective joint 1, and screwing the cylindrical clamping pin on the protective joint 1 into the clamping groove of the pressing cap 3 to realize the assembly of the quick-connection device. When the micro differential pressure ventilation flow sensor is replaced and installed, the protection joint 1 is taken down, and the protection joint 1 with another requirement is replaced, so that the micro differential pressure ventilation flow sensor can be rapidly installed and replaced.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or alterations may be made to the present invention,
the essence of the corresponding technical solutions does not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A connect device soon for on little pressure differential ventilation flow sensor which characterized in that: it comprises a protective joint (1), a quick joint (2), a pressure cap (3), a pipeline joint (4), a spring (5) and a sealing ring (6),
one side of the quick joint (2) is provided with an annular groove (2-1), the outer side wall of the other side of the quick joint (2) is provided with a flange step, a sealing ring (6) is sleeved on the groove (2-1) of the quick joint (2), a spring (5) is sleeved on the quick joint (2), and one end part of the spring (5) is clamped on the flange step, the quick connector (2) is arranged in the pressure cap (3), after the spring (5) is compressed, the quick connector (2) extends out from the step hole end of the pressure cap (3) and keeps extending out, the pipeline connector (4) is screwed into the quick connector (2), the pipeline joint (4) is arranged in the end part of the quick joint (2) positioned at one side of the spring (5), the protection joint (1) is arranged on the quick joint (2), and the protective joint (1) is positioned at one side of the annular groove (2-1), and the protective joint (1) is clamped in the pressing cap (3).
2. A quick-connect device for use on a micro differential pressure ventilation flow sensor, according to claim 1, wherein: the quick connector (2) is a hollow cylinder, and the other side end face of the quick connector (2) is internally provided with female threads (2-3).
3. A quick-connect device for use on a micro differential pressure ventilation flow sensor, according to claim 2, wherein: the pressing cap (3) is in a circular tube shape, one end of the pressing cap (3) is provided with two clamping grooves (3-1) which are 180 degrees, and the other end of the pressing cap (3) is provided with a step hole (3-2).
4. A quick-connect device for use on a micro differential pressure ventilation flow sensor, according to claim 3, wherein: the spring (5) is made of constant-elasticity alloy.
5. The quick connect device for a micro differential pressure ventilation flow sensor of claim 4, wherein: the diameter of the spring wire of the spring (5) is 0.7mm, the effective number of turns of the spring (5) is 11 turns, and two ends of the spring (5) are ground flat.
6. The quick connect device for a micro differential pressure ventilation flow sensor of claim 5, wherein: the spring (5) is arranged in a gap between the quick connector (2) and the pressing cap (3).
7. The quick connect device for a micro differential pressure ventilation flow sensor of claim 6, wherein: one end of the protective joint (1) is a pagoda head (1-2), and the outer side of the other end of the protective joint (1) is provided with a cylindrical bayonet lock (1-1) which is matched and installed with a clamping groove (3-1) of the pressing cap (3).
8. A quick-connect device for use on a micro differential pressure ventilation flow sensor, according to claim 7, wherein: the inner side wall of the other end of the protective joint (1) is provided with a mounting hole (1-3), and the opening end of the mounting hole (1-3) is provided with a 40-degree cone angle (1-4).
9. A quick-connect device for use on a micro differential pressure ventilation flow sensor, according to claim 8, wherein: the bottom end of the pipe diameter of the pagoda head (1-2) of the protective joint (1) is provided with an embossing step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010961121.8A CN112032441A (en) | 2020-09-14 | 2020-09-14 | Quick connection device for micro-differential pressure ventilation flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010961121.8A CN112032441A (en) | 2020-09-14 | 2020-09-14 | Quick connection device for micro-differential pressure ventilation flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112032441A true CN112032441A (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010961121.8A Pending CN112032441A (en) | 2020-09-14 | 2020-09-14 | Quick connection device for micro-differential pressure ventilation flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112032441A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4745950A (en) * | 1985-04-12 | 1988-05-24 | Fresenius Ag | Connector for peritoneal dialysis |
| CN2073524U (en) * | 1990-08-18 | 1991-03-20 | 顾长春 | Connecting device for use in the connection of fluid pipes |
| CN201293170Y (en) * | 2008-11-04 | 2009-08-19 | 金光玉 | Connector |
| CN203115359U (en) * | 2012-12-27 | 2013-08-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Direct insertion hydraulic tube joint |
| US20130341905A1 (en) * | 2012-06-21 | 2013-12-26 | Robert Bosch Gmbh | Quick Connect and Quick Disconnect System Male Component |
| CN207122686U (en) * | 2017-08-30 | 2018-03-20 | 福建福安闽东亚南电机有限公司 | A kind of attachment means |
-
2020
- 2020-09-14 CN CN202010961121.8A patent/CN112032441A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4745950A (en) * | 1985-04-12 | 1988-05-24 | Fresenius Ag | Connector for peritoneal dialysis |
| CN2073524U (en) * | 1990-08-18 | 1991-03-20 | 顾长春 | Connecting device for use in the connection of fluid pipes |
| CN201293170Y (en) * | 2008-11-04 | 2009-08-19 | 金光玉 | Connector |
| US20130341905A1 (en) * | 2012-06-21 | 2013-12-26 | Robert Bosch Gmbh | Quick Connect and Quick Disconnect System Male Component |
| CN203115359U (en) * | 2012-12-27 | 2013-08-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Direct insertion hydraulic tube joint |
| CN207122686U (en) * | 2017-08-30 | 2018-03-20 | 福建福安闽东亚南电机有限公司 | A kind of attachment means |
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Application publication date: 20201204 |
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