CN116877812B - Quick connector and water sample collector using same - Google Patents
Quick connector and water sample collector using same Download PDFInfo
- Publication number
- CN116877812B CN116877812B CN202311128848.8A CN202311128848A CN116877812B CN 116877812 B CN116877812 B CN 116877812B CN 202311128848 A CN202311128848 A CN 202311128848A CN 116877812 B CN116877812 B CN 116877812B
- Authority
- CN
- China
- Prior art keywords
- movable sleeve
- butt joint
- quick connector
- joint part
- ring
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 210000001503 joint Anatomy 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- 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
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
Abstract
The invention relates to the technical field of pipeline connection, and discloses a quick connector and a water sample collector using the same, wherein the quick connector comprises a movable sleeve, two connecting main bodies and two elastic rings, two ends of each connecting main body are respectively provided with a joint part and a butt joint part, the outer peripheral surface of each butt joint part is provided with a sealing ring, the tail end of each butt joint part is provided with an expansion structure, the outer surface of each expansion structure is provided with a sliding groove for the elastic ring to axially move, and the distance between the elastic ring and each sealing ring is inversely related to the expansion amplitude of the expansion structure; the movable sleeve is provided with a movable range which is completely sleeved into any one butt joint part, and the two butt joint parts are detachably connected through the movable sleeve and are sealed by respective sealing rings. The invention can realize the on-off of the pipeline by only moving the position of the sleeve member without pulling and inserting any connecting piece, so as to adapt to the compact internal structure of the water sample collector.
Description
Technical Field
The invention relates to the technical field of pipeline connection, in particular to a quick connector and a water sample collector using the same.
Background
In the water environment monitoring process, the water quality pollution condition needs to be reflected truly and objectively, although a considerable amount of water quality monitoring equipment is deployed and installed in various places, the fluctuation range of the components and the flow of discharged sewage is large in a short time due to other reasons such as production or manpower, and the data of online water quality analysis equipment such as COD, ammonia nitrogen, total phosphorus, total nitrogen and the like cannot truly reflect the actual condition, so that a correct acquisition method and acquisition equipment are urgently needed to cope with the complex water body pollution condition.
Therefore, the standard HJ353-2019 is "technical Specification for the installation of the on-line monitoring system of the water pollution source", relevant measures are taken for the conditions, the fact that the water pollution source on-line monitoring system comprises a water quality automatic sampling unit is clarified, and the water quality automatic monitoring station for unattended real-time monitoring is established to perform timing sampling detection on the monitoring points.
The automatic water quality sampling unit is a water sample collector, and takes water from a water taking point at regular time and quantitatively through a water pump, the water sample enters the inside of the collector through a pipeline to be stored in a concentrated mode, after the water sample is stored to a certain amount, the water sample is sent to an online water quality analyzer to be analyzed for water quality, and if the water sample does not meet the environmental protection requirement, the water sample is stored in a sample reserving bottle through a sample reserving module.
Because the water sample collector relates to the connection of different pipelines, so in order to conveniently maintain the pipelines, quick connectors are generally adopted at present to realize quick on-off between the pipelines. The existing quick connector, for example, the application number of the quick connector is CN202123263192.X, and because the quick connector needs to perform plugging action to realize on-off of a pipeline, certain space positions need to be reserved in the prior art during execution. However, as water sample collectors increasingly tend to be integrated and light, the internal structure is compact, and the space position for the quick connector to be plugged is difficult to reserve. For this reason, improvements to existing quick connectors are needed to meet the needs of water sample collectors.
Disclosure of Invention
The present invention is directed to a quick connector that overcomes one or more of the problems of the prior art, and at least provides a useful choice or creation.
The quick connector comprises a connecting main body, movable sleeves and elastic rings, wherein the number of the connecting main body and the number of the elastic rings are two, two ends of the connecting main body are respectively provided with a joint part and a butt joint part, the outer peripheral surface of the butt joint part is provided with a sealing groove, a sealing ring is arranged in the sealing groove, the tail end of the butt joint part is provided with an expansion structure, the expansion structure has a tendency of expanding outwards, the outer surface of the expansion structure is provided with a sliding groove for one elastic ring to axially move, and the distance between the elastic ring and the sealing ring is inversely related to the expansion amplitude of the expansion structure; the movable sleeve is movably sleeved outside any one of the butt joint parts, the movable sleeve is provided with a movable range which is completely sleeved in any one of the butt joint parts, the two butt joint parts are detachably connected through the movable sleeve, and the two butt joint parts are sealed with the movable sleeve through respective sealing rings.
The quick connector provided by the invention has at least the following beneficial effects: when the pipeline is required to be communicated, the joints of the two connecting main bodies are respectively connected with the corresponding pipelines, the two connecting main bodies are respectively arranged at the left side and the right side, then the movable sleeve is completely sleeved into the abutting joint part of the left connecting main body, then the two abutting joint parts are abutted, finally the movable sleeve is sleeved on the abutting joint part of the right connecting main body, in the process, the right movement of the movable sleeve drives the left elastic ring to move to the right side so as to lead the left expansion structure to be gradually folded, the right movement of the movable sleeve is facilitated, when the movable sleeve moves to the right to a designated position, the movable sleeve starts to drive the right elastic ring to move to the right side, so that the right expansion structure is gradually expanded until the right expansion structure is tightly abutted with the movable sleeve, at the moment, the right movement of the movable sleeve is blocked, an operator needs to overcome the resistance and move the movable sleeve to be respectively sealed with the sealing rings of the two abutting joint parts, and the pipeline is communicated; when the pipeline is required to be disconnected, only the movable sleeve is required to be moved left to the connecting main body away from the right so as to expose the butt joint position between the two connecting main bodies, in the process, the left movement of the movable sleeve drives the right elastic ring to move to the left side, so that the right expansion structure is gradually folded, the left movement of the movable sleeve is beneficial to the left movement of the movable sleeve, meanwhile, the left movement of the movable sleeve drives the left elastic ring to move to the left side, so that the left expansion structure is gradually expanded, when the left expansion structure is expanded to be tightly abutted with the movable sleeve, the left movement of the movable sleeve is blocked at the moment, and an operator needs to overcome the resistance and move the movable sleeve to the connecting main body away from the right, so that the pipeline is disconnected; the invention provides the expansion structure and the elastic ring, and aims to ensure that when the movable sleeve moves to seal with the sealing rings of the two butt joint parts respectively, the expansion structure of one connecting main body can be expanded to be tightly abutted with the movable sleeve, so that a large static friction force is generated on the movable sleeve to limit the autonomous movement of the movable sleeve, and leakage is avoided.
According to some embodiments of the invention, the expansion structure comprises a plurality of fork pieces, two adjacent fork pieces are arranged at intervals, each fork piece has an outward expansion trend, and the outer surfaces of all the fork pieces are jointly provided with the sliding groove. When the elastic ring moves gradually in the direction close to the butt joint part, all the fork pieces are gradually folded, and when the elastic ring moves gradually in the direction close to the joint part, all the fork pieces are gradually expanded.
According to some embodiments of the invention, the end faces of two of the expansion structures have projections that overlap in radial planes so as to prevent one of the expansion structures from protruding into the other expansion structure.
According to some embodiments of the invention, when the movable sleeve drives the elastic ring to move, if the elastic ring moves gradually in a direction close to the abutting portion, the expansion structure is gradually folded, and in this process, the distance between the elastic ring and the movable sleeve is also gradually increased. In order to keep the elastic ring in contact with the movable sleeve and avoid failure of the elastic ring, the depth of the sliding groove is gradually decreased from the joint part to the butt joint part.
According to some embodiments of the present invention, when the existing quick connector is installed with a female connector of another pipeline, a raw material tape is required to be wound around a thread of the quick connector or a sealant is required to be coated, so as to avoid leakage during use, but in order to save the use of the raw material tape or the sealant and omit corresponding operation steps, an elastic sealing ring can be arranged at the tail end of the connector part.
According to some embodiments of the invention, the outer diameter of the elastic sealing ring increases from the butt joint part to the joint part. When the connecting main body is installed with female connectors of other pipelines through the connector part, the elastic sealing ring is not contacted with the female connectors of the pipelines at the initial stage of installation, and gradually approaches to the female connectors of the pipelines along with the gradual extension of the connector part; when the elastic sealing ring approaches to the female joint abutting on the pipeline, if an operator continues to screw the joint part, the elastic sealing ring deforms towards the thread of the joint part under the action of pressure so as to fill the end gap between the joint part and the female joint, thereby realizing the sealing between the joint part and the female joint.
According to some embodiments of the invention, the joint part is provided with a torsion table, and the length of the connecting body is divided into a joint length and a butt-joint length by the torsion table, and the butt-joint length is not less than the length of the movable sleeve. By the arrangement, when the movable sleeve is completely sleeved into any one connecting body, the other connecting body can be completely exposed without being limited by the movable sleeve.
According to some embodiments of the invention, the movable sleeve is provided with a finger position for facilitating movement of the movable sleeve.
According to some embodiments of the invention, the joint is at least a single channel, so that the passage of the connecting body can be provided as a straight, three-way or multi-way.
The water sample collector according to the second aspect of the embodiment of the invention comprises a pipeline network and the quick connector, wherein the quick connector is arranged in the pipeline network.
The water sample collector provided by the invention has at least the following beneficial effects: because the quick connector can also realize the on-off of the pipeline without executing the pulling-inserting action, the internal structure of the water sample collector can be designed to be more compact.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a top view of a quick connector according to a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of the quick connector shown in FIG. 1 taken along section line A-A;
FIG. 3 is an exploded view of the quick connector shown in FIG. 1;
FIG. 4 is a top view of a quick connector according to a second embodiment of the present invention;
FIG. 5 is a cross-sectional view of the quick connector shown in FIG. 4 taken along section line B-B;
FIG. 6 is a top view of the quick connector of FIG. 4 after concealing the holster;
FIG. 7 is a schematic perspective view of a water sample collector according to the present invention.
In the accompanying drawings: 100-sleeve, 200-connector, 210-connector segment, 220-docking segment, 211-twist mount, 212-runner, 213-spring seal, 221-O-slot, 222-O-slot, 230-snap slot, 231-snap ring, 110-detent, 300-movable sleeve, 400-connector body, 500-spring ring, 410-connector segment, 420-docking segment, 411-torsion mount, 412-channel, 413-spring seal, 421-seal slot, 422-seal ring, 430-switch tab, 431-groove, 432-slide slot, 310-finger position.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
As shown in fig. 1 to 3, the quick connector according to the present invention includes a sleeve 100 and two connectors 200, wherein the two connectors 200 are identical in structure, shape and material, and the two connectors 200 are detachably connected by the sleeve 100. Specifically, two ends of the connector 200 are respectively provided with a joint section 210 and a butt joint section 220, the joint section 210 includes a torsion table 211 and a runner 212 with external threads, the number of the joint sections 210 can be selected from one, two, three, etc., and correspondingly, the passages of the connector 200 are straight-through, three-way, four-way, etc. The outer profile of the torsion table 211 may be rectangular, hexagonal, octagonal, etc. for engagement by a wrench to threadably couple the connector segment 210 to a female connector of another pipeline.
It should be further noted that if the connector 200 is a straight connector, the connector segments 210 may be fixedly connected to the connector 200, but if the connector 200 is a three-way connector or a four-way connector, all the connector segments 210 need to be movably connected to the connector 200 so as not to interfere with each other.
Further, an elastic sealing ring 213 is disposed at the end of the joint section 210, and the outer diameter of the elastic sealing ring 213 increases from the butt section 220 to the joint section 210 to form a flare. When the connector 200 is installed with the female connectors of other pipelines through the connector section 210, the elastic sealing ring 213 is not in contact with the female connectors of the pipelines at the initial stage of installation, and the elastic sealing ring 213 gradually approaches to the female connectors of the pipelines along with the gradual extension of the connector section 210; when the elastic sealing ring 213 approaches to the female joint abutting against the pipeline, if the operator continues to screw the joint section 210, the elastic sealing ring 213 deforms toward the thread of the joint section 210 under the action of pressure to fill the end gap between the joint section 210 and the female joint, thereby realizing the sealing therebetween, and saving the use of raw material tape or sealant. When the connector 200 is removed from the female connector of the pipeline, the elastomeric sealing ring 213 is no longer under pressure and is then elastically restored.
Furthermore, an O-ring groove 221 is provided on the outer circumferential surface of the abutting section 220, and an O-ring 222 is provided in the O-ring groove 221. The sleeve 100 can be sleeved on the butt joint section 220 of the connector 200, and can also axially move along the butt joint section 220, and the sleeve 100 has a movable range of completely sleeving the butt joint section 220 so as to realize sleeving or sleeving of the butt joint section 220. The torsion table 211 has a size larger than that of the bundle 100, the moving path of the bundle 100 ends with the torsion table 211, and the length of the connection member 200 is divided into a joint length and a butt length by the torsion table 211, wherein the butt length is not smaller than that of the bundle 100, so that the bundle 100 can be completely sleeved into the connection member 200. The O-ring 222 has an outer diameter that is greater than an inner diameter of the sleeve 100 such that the docking section 220 can be sealed with the sleeve 100 by the O-ring 222.
The sleeve 100 may be sleeved on the abutting sections 220 of the two connectors 200, at this time, the two connectors 200 are connected by the sleeve 100, and if the sleeve 100 is positioned to cover the O-rings 222 of the two abutting sections 220 at the same time, the abutting position between the two connectors 200 is effectively sealed to meet the communication of the quick connector.
It will be appreciated that while the outer diameter of the O-ring 222 is greater than the inner diameter of the sleeve 100, such that the O-ring 222 provides some resistance to movement of the sleeve 100, the O-ring 222 is capable of being retracted during movement of the sleeve 100 due to the elasticity of the O-ring 222 to effect movement of the sleeve 100.
Through the above structure, when the connection of the pipelines is required, the joint sections 210 of the two connectors 200 are connected to the female joints of the corresponding pipelines, the sleeve 100 is completely sleeved into the butt joint section 220 of any one connector 200, the two butt joint sections 220 are then butted, and finally the sleeve 100 is sleeved on the butt joint section 220 of the other connector 200 until the sleeve 100 is sealed with the O-rings 222 of the two butt joint sections 220, respectively, so that the connection of the pipelines is completed. When the disconnection of the pipeline is required, the sleeve 100 is moved away from any one of the connectors 200 to expose the butt joint between the two connectors 200, and at this time, the two connectors 200 are not connected with each other, so as to complete the disconnection of the pipeline. In summary, the present invention can realize the on-off of the pipeline by moving the position of the sleeve 100, without plugging any one of the connectors 200, so as to adapt to the compact internal structure of the water sample collector.
In some embodiments of the present invention, when two connectors 200 are connected by the sleeve 100, since the sleeve 100 can move in the direction of any one connector 200, in order to limit the autonomous movement of the sleeve 100 and avoid leakage, the connector 200 is provided with a clamping groove 230 between the O-shaped groove 221 and the joint section 210, and a clamping ring 231 is detachably connected in the clamping groove 230, and the size of the clamping ring 231 is larger than that of the sleeve 100. When the snap ring 231 is connected to the clamping groove 230, both ends of the sleeve 100 are respectively limited by the snap ring 231, so that the sleeve 100 cannot move in the axial direction.
In some embodiments of the present invention, for facilitating the movement of the sleeve 100, the sleeve 100 is provided with a clamping position 110, and the clamping position 110 may be a boss encircling the sleeve 100 or may be a recess encircling the sleeve 100.
In the first embodiment, in order to limit the autonomous movement of the sleeve 100, the connector 200 needs to be provided with a detachable snap ring 231 on the moving path of the sleeve 100, the operator needs to insert the snap ring 231 into the clamping groove 230 when connecting the pipeline, and need to detach the snap ring 231 from the clamping groove 230 when disconnecting the pipeline, and thus, one of the snap rings 231 is very easy to be lost because it cannot be assembled into the corresponding clamping groove 230 any more when disconnecting the pipeline. In the second embodiment, it is desirable to omit the provision of the snap ring 231 by structural improvement.
As shown in fig. 4 to 6, the quick connector according to the present invention, which is the second embodiment, includes a movable sleeve 300, two connection bodies 400 and two elastic rings 500, the two connection bodies 400 are identical in structure, shape and material, and the two connection bodies 400 are detachably connected through the movable sleeve 300. Specifically, two ends of the connection body 400 are respectively provided with a joint portion 410 and a butt joint portion 420, the joint portion 410 includes a torsion table 411 and a channel 412 with external threads, the number of the joint portions 410 can be selected from one, two, three, etc., and correspondingly, the passages of the connection body 400 are straight-through, three-way, four-way, etc. The outer profile of the torque table 411 may be rectangular, hexagonal, octagonal, etc. for engagement by a wrench to screw the fitting portion 410 to a female fitting of another pipe.
It should be further noted that if the connecting body 400 is a straight-through connector, the connector portion 410 may be fixedly connected to the connecting body 400, but if the connecting body 400 is a three-way connector or a four-way connector, all the connector portions 410 need to be movably connected to the connecting body 400 so as not to interfere with each other.
Further, an elastic sealing ring 413 is disposed at the end of the joint portion 410, and the outer diameter of the elastic sealing ring 413 increases from the abutting portion 420 toward the joint portion 410, so as to form a flare. When the connection body 400 is mounted to the female joint of another pipeline through the joint portion 410, the elastic sealing ring 413 is not in contact with the female joint of the pipeline at the initial stage of the mounting, and the elastic sealing ring 413 gradually approaches the female joint of the pipeline as the joint portion 410 gradually extends in; when the elastic sealing ring 413 approaches to the female joint abutting against the pipeline, if the operator continues to screw the joint portion 410, the elastic sealing ring 413 deforms toward the thread of the joint portion 410 under the action of pressure to fill the end gap between the joint portion 410 and the female joint, thereby realizing the sealing therebetween, and saving the use of raw material tape or sealant. When the connection body 400 is detached from the female connector of the pipe, the elastic sealing ring 413 is not pressurized any more and is then restored by elasticity.
The outer circumferential surface of the abutting portion 420 is provided with a seal groove 421, and a seal ring 422 is provided in the seal groove 421. The end of the butt joint part 420 has an expansion structure, the expansion structure includes a plurality of prongs 430, each two adjacent prongs 430 are spaced apart, each prong 430 has an outward expansion trend, that is, the size enclosed by all prongs 430 is larger than the size of the butt joint part 420 and is also larger than the inner diameter of the movable sleeve 300 under the action of no external force.
And, a groove 431 is formed on the outer surface of each of the fork pieces 430, the groove 431 penetrates through two long sides of the fork piece 430, and the length of the groove 431 is several times the thickness of the elastic ring 500. All the grooves 431 are disposed in a one-to-one correspondence, so as to form together a chute 432 for the elastic ring 500 to axially move. The spring ring 500 is used to adjust the size enclosed by all prongs 430, and the initial diameter of the spring ring 500 is smaller than the diameter of the runner 432 to maintain tension on the spring ring 500. The distance between the elastic ring 500 and the seal ring 422 is inversely related to the expansion amplitude of all the prongs 430, that is, when the elastic ring 500 is closer to the seal ring 422, the influence of the elastic ring 500 on all the prongs 430 is weaker, so that the expansion amplitude of all the prongs 430 is larger; the further the elastic ring 500 is away from the seal ring 422, the stronger the elastic ring 500 affects all the prongs 430, resulting in a smaller expansion amplitude of all the prongs 430.
On the other hand, the movable sleeve 300 is movably sleeved outside any one of the abutting portions 420, the movable sleeve 300 has a movable range completely sleeved in any one of the abutting portions 420, the two abutting portions 420 are detachably connected through the movable sleeve 300, and the two abutting portions 420 are sealed with the movable sleeve 300 through respective sealing rings 422. The movable sleeve 300 may be sleeved on the abutting portion 420 of the connecting body 400, and may also axially move along the abutting portion 420 to sleeve or out the abutting portion 420. The size of the torsion table 411 is larger than that of the movable case 300, the moving path of the movable case 300 takes the torsion table 411 as an end point, and the length of the connection body 400 is divided into a joint length and a butt length by the torsion table 411, wherein the butt length is not smaller than that of the movable case 300, so that the movable case 300 can be completely sleeved into the connection body 400. The outer diameter of the sealing ring 422 is larger than the inner diameter of the movable sleeve 300, so that the abutting portion 420 can be sealed with the movable sleeve 300 through the sealing ring 422.
The movable sleeve 300 may be respectively sleeved on the abutting portions 420 of the two connecting bodies 400, at this time, the two connecting bodies 400 are connected by the movable sleeve 300, and if the position of the movable sleeve 300 can cover the sealing rings 422 of the two abutting portions 420 at the same time, the abutting positions between the two connecting bodies 400 are effectively sealed to meet the communication of the quick connector.
It will be appreciated that, although the outer diameter of the seal ring 422 is larger than the inner diameter of the movable sleeve 300, so that the seal ring 422 has a certain resistance to the movement of the movable sleeve 300, the seal ring 422 can avoid when the movable sleeve 300 moves due to the certain elasticity of the seal ring 422, so as to realize the movement of the movable sleeve 300.
With the above structure, when it is necessary to realize the communication of the pipes, the joint portions 410 of the two connecting bodies 400 are connected to the female joints of the corresponding pipes, and it is assumed that the two connecting bodies 400 are located on the left and right sides, respectively, then the movable sleeve 300 is completely sleeved in the abutting portion 420 of the left connecting body 400, then the two abutting portions 420 are abutted, and finally the movable sleeve 300 is sleeved in the abutting portion 420 of the right connecting body 400. In this process, the right movement of the movable sleeve 300 drives the left elastic ring 500 to move to the right side, so that the left branch piece 430 is gradually folded, which is beneficial to the right movement of the movable sleeve 300, when the movable sleeve 300 moves to the right side to the designated position, the movable sleeve 300 starts to drive the right elastic ring 500 to move to the right side, so that the right branch piece 430 is gradually expanded until the right branch piece 430 expands to tightly abut against the movable sleeve 300, at this time, the right movement of the movable sleeve 300 is blocked, and an operator needs to overcome the resistance and move the movable sleeve 300 to seal the sealing rings 422 of the two abutting parts 420 respectively, so as to complete the communication of the pipeline.
When the pipe needs to be disconnected, the movable sleeve 300 is only required to be moved left to the connecting body 400 away from the right so as to expose the butt joint position between the two connecting bodies 400, and at this time, the two connecting bodies 400 are not connected with each other. In this process, the left movement of the movable sleeve 300 drives the right elastic ring 500 to move to the left side, so that the right branch piece 430 is gradually folded, which is beneficial to the left movement of the movable sleeve 300, and at the same time, the left movement of the movable sleeve 300 drives the left elastic ring 500 to move to the left side, so that the left branch piece 430 is gradually expanded, when the left branch piece 430 expands to tightly abut against the movable sleeve 300, the left movement of the movable sleeve 300 is blocked at this time, and an operator needs to overcome the resistance and move the movable sleeve 300 to leave the right connecting body 400, so as to finish the disconnection of the pipeline.
The purpose of the present invention is to provide the fork 430 and the elastic ring 500, when the movable sleeve 300 moves to seal with the sealing rings 422 of the two abutting portions 420, at this time, one of the fork 430 of the connecting body 400 can expand to tightly abut against the movable sleeve 300, so as to generate a larger static friction force on the movable sleeve 300, so as to limit the autonomous movement of the movable sleeve 300 and avoid leakage. In summary, the present invention can realize the on-off of the pipeline by moving the position of the movable sleeve 300 without plugging any one of the connecting bodies 400, so as to adapt to the compact internal structure of the water sample collector.
It should be noted that, the specific structure of the expansion structure is not limited to the present invention, and the expansion structure may be expanded and contracted by using different structures under the action of the elastic ring 500, which is not limited to the above embodiment.
In some embodiments of the present invention, when the movable sleeve 300 drives the elastic ring 500 to move, if the elastic ring 500 moves gradually in a direction approaching the abutting portion 420, all the prongs 430 are gradually folded, and in this process, the distance between the elastic ring 500 and the movable sleeve 300 is gradually increased. In order to maintain the contact between the elastic ring 500 and the movable sleeve 300, to avoid the failure of the elastic ring 500, the depth of the sliding groove 432 decreases from the joint 410 to the butt joint 420 in sequence, so that when the elastic ring 500 is located at the shallowest position of the sliding groove 432, all the prongs 430 are folded to the maximum, and when the elastic ring 500 is located at the deepest position of the sliding groove 432, all the prongs 430 are expanded to the maximum.
In some embodiments of the present invention, since the two expansion structures are alternately in an expanded state and a collapsed state when in use, respectively, in order to avoid that one expansion structure stretches into the other expansion structure, and thus the two expansion structures cannot move independently, the end faces of the two expansion structures have projections overlapping on a radial plane, that is, when one expansion structure expands to the limit, the end face of the expansion structure can also abut against the end face of the other expansion structure collapsed to the limit. In order to achieve the above technical effect, the maximum projection height of each of the prongs 430 on the radial plane is not less than the maximum projection height of the moving path thereof on the radial plane. It will be appreciated that since the prongs 430 are arcuate, their maximum projected height in a radial plane is not equal to their thickness, but rather the distance from the upper top end of the prongs 430 to their lower bottom end.
In some embodiments of the present invention, in order to facilitate moving the movable sleeve 300, the movable sleeve 300 is provided with a finger 310, and the finger 310 may be a boss that is looped around the movable sleeve 300, or may be a recess that is provided on the movable sleeve 300.
As shown in fig. 7, the water sample collector according to the present invention comprises a pipeline network and the quick connector, wherein the pipeline network comprises a plurality of pipelines, and the quick connector is arranged in the pipeline network. Because the quick connector can also realize the on-off of the pipeline without executing the pulling-inserting action, the internal structure of the water sample collector can be designed to be more compact.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (10)
1. Quick-operation joint, its characterized in that: the connecting body is provided with two joint parts and two butt joint parts at two ends, a sealing groove is arranged on the outer peripheral surface of each butt joint part, a sealing ring is arranged in each sealing groove, an expansion structure is arranged at the tail end of each butt joint part and has an outward expansion trend, a sliding groove for one elastic ring to axially move is arranged on the outer surface of each expansion structure, and the distance between each elastic ring and each sealing ring is inversely related to the expansion amplitude of each expansion structure; the movable sleeve is movably sleeved outside any one of the butt joint parts, the movable sleeve is provided with a movable range which is completely sleeved in any one of the butt joint parts, the two butt joint parts are detachably connected through the movable sleeve, and the two butt joint parts are sealed with the movable sleeve through respective sealing rings.
2. The quick connector of claim 1, wherein: the expansion structure comprises a plurality of fork pieces, two adjacent fork pieces are arranged at intervals, each fork piece has an outward expansion trend, and the outer surfaces of all the fork pieces are jointly provided with the sliding groove.
3. The quick connector according to claim 1 or 2, characterized in that: the end faces of the two expansion structures have projections that overlap in a radial plane.
4. The quick connector according to claim 1 or 2, characterized in that: the depth of the sliding groove is gradually decreased from the joint part to the butt joint part.
5. The quick connector of claim 1, wherein: and the tail end of the joint part is provided with an elastic sealing ring.
6. The quick connector of claim 5, wherein: the outer diameter of the elastic sealing ring increases gradually from the butt joint part to the joint part.
7. The quick connector of claim 1, wherein: the connector part is provided with a torsion table, the length of the connecting main body is divided into a connector length and a butt joint length by the torsion table, and the butt joint length is not less than the length of the movable sleeve.
8. The quick connector of claim 1, wherein: the movable sleeve is provided with a finger position.
9. The quick connector of claim 1, wherein: the joint part is at least a single channel.
10. A water sample collector comprising a quick connector according to any one of claims 1 to 9, further comprising: and the quick connector is arranged in the pipeline network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311128848.8A CN116877812B (en) | 2023-09-04 | 2023-09-04 | Quick connector and water sample collector using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311128848.8A CN116877812B (en) | 2023-09-04 | 2023-09-04 | Quick connector and water sample collector using same |
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| Publication Number | Publication Date |
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| CN116877812A CN116877812A (en) | 2023-10-13 |
| CN116877812B true CN116877812B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311128848.8A Active CN116877812B (en) | 2023-09-04 | 2023-09-04 | Quick connector and water sample collector using same |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117469478A (en) * | 2023-12-27 | 2024-01-30 | 北京北控悦慧环境科技有限公司 | Water sampling mechanism of automatic water quality sampling machine |
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| CN203477710U (en) * | 2013-09-16 | 2014-03-12 | 胡启宇 | Leakage-proof pipe connector |
| CN204241271U (en) * | 2014-10-30 | 2015-04-01 | 杜鹏 | Water quality automatic on-line analyser multidraw flow path system |
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Also Published As
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| CN116877812A (en) | 2023-10-13 |
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