CN109611624B - Direct-insertion type quick-positioning metal pipe reducing connecting device - Google Patents
Direct-insertion type quick-positioning metal pipe reducing connecting device Download PDFInfo
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- CN109611624B CN109611624B CN201811432044.6A CN201811432044A CN109611624B CN 109611624 B CN109611624 B CN 109611624B CN 201811432044 A CN201811432044 A CN 201811432044A CN 109611624 B CN109611624 B CN 109611624B
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
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Abstract
The invention discloses a direct-insert type quick-positioning metal pipe reducing connecting device, which structurally comprises a fixed pressing block, a small end, an anti-skidding clamping block, a screwing nut, a male scale, a large end, a connecting sleeve main body and an anti-skidding lug, wherein one side of the fixed pressing block, which is close to the large end, and one side of the connecting sleeve main body, which is close to the small end, are integrated into a whole, compared with the prior art, the invention quickly positions a pipeline through a ring-shaped magnet, improves the efficiency and the accuracy of pipeline installation, saves time, nests a sealing ring with the outer edge of the pipeline, increases the fitting pressure through magnetic force, avoids unnecessary loss and damage caused by leakage of fluid or gas in the pipeline during use, clamps the clamp plate are clamped into a male scale groove which is opposite to the screwing of the screwing nut, fixes the screwing nut, prevents the screwing nut from loosening in the vibration continuously generated by the pipeline under the impact of a rapid current, and utilizes a, prevent the gas from returning to the discharge port or other outlets upwards in the counter-flow direction, and affecting life.
Description
Technical Field
Belong to the connecting device field, concretely relates to cut straightly quick location tubular metal resonator reducing connecting device.
Background
The reducing is a connecting device, and the popular name is big end and is opened relatively, and the tip is relative shrink form, is used for valve and pipeline, or is connected when the nominal diameter is inconsistent between pipeline and the pipeline, changes the pipe diameter through the takeover, extensively is used for fields such as sewage treatment, pharmacy, dairy products, food, beer, beverage, and the prior art considers the not enough:
1. the connecting device in the prior art generally uses threads to be connected with two other pipelines, is more troublesome when aligning and positioning, is easy to misplace, misplaces when the positioning, can lead to being difficult to get up connecting device and pipeline through threaded connection, needs repositioning calibration, is time-wasting, if the connecting device pipeline is screwed together, can also cause an angle to be formed between pipeline and the connecting device, the clearance appears, lead to when using, fluid or gas leakage in the pipeline, cause unnecessary loss and harm.
2. When the connecting device and the pipeline are screwed fixedly by utilizing the external nut, water flow quickly flows through the connecting device from the pipeline during use, the pipeline is impacted by a rush current, the pipeline vibrates, the nut for screwing and fixing on the connecting device is loosened by continuous vibration, the connection between the pipeline and the connecting device is unstable and tight, and therefore water leakage and air leakage are caused, the endurance is not strong, and frequent maintenance is needed.
3. The inside of a general connecting device is funnel-shaped or straight-through cylindrical, and domestic sewage and other gases with pungent odor can return to a discharge port or other outlets in a counter-flow manner through a pipeline and a channel inside the connecting device, so that the daily life is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a direct-insertion type quick-positioning metal pipe reducing connecting device, which solves the problems that the alignment and positioning are troublesome and easy to misplace, the repositioning and calibration are needed, the time is wasted, or an angle is formed between a pipeline and a connecting device, a gap is formed, when the device is used, fluid or gas in the pipeline leaks, unnecessary loss and harm are caused, a nut for screwing and fixing is easy to loosen, the connection between the pipeline and the connecting device is not stable and tight enough, water and gas leakage are caused, the endurance is not strong, the device needs to be maintained frequently, and gas with pungent smell, such as domestic sewage and the like, returns to a discharge port or other outlets in a reverse flow manner through the pipeline and a channel in the connecting device, and influences daily life.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a cut straightly quick location tubular metal resonator reducing connecting device which the structure includes fixed compact heap, tip, anti-skidding clamp block, the nut of screwing, the positive scale of carving, main aspects, adapter sleeve main part, skid proof block, its characterized in that: the utility model discloses a structure of adapter sleeve, including fixed compact heap, tip and little end, both ends are including fixed compact heap and fixed compact heap, one side that fixed compact heap is close to the main part of big end and one side that the adapter sleeve main part is close to the tip are the integral structure, the tip is located same axis with fixed compact heap and runs through the adapter sleeve main part, antiskid clamp block and tip are located same axis and the outside and the inboard welding of fixed compact heap, nut and fixed compact heap clearance fit of screwing and with fixed compact heap threaded connection, the positive scale bottom of carving just tip offsets with the nut of screwing with the adapter sleeve main part of integral structure, big end run through the adapter sleeve main part and link up with the tip, antiskid lug is placed between tip and big end perpendicularly.
Preferably, the nut of screwing comprises nut shell, abaculus, mounting groove, rotation connecting block, fixed column, cardboard, the nut shell outside is laminated mutually with the fixed column inboard, the abaculus is inlayed and is installed inside the nut shell and mounting groove clearance fit, the mounting groove is as an organic whole structure with the nut shell and is parallel to each other with the cardboard, rotation connecting block fixed mounting just with mounting groove clearance fit between abaculus and fixed column, the fixed column is located same axis with the abaculus, one side fixed mounting that the cardboard is close to the rotation connecting block is in the fixed column outside.
Preferably, the connecting sleeve main body comprises a main body shell, a sealing ring, a ring-shaped magnet, a flow guide hopper, a deodorization partition plate and an internal thread, the inner side of the main body shell close to the small end and the fixed pressing block are of an integrated structure, the sealing ring and the flow guide hopper are positioned on the same axis and are embedded and fixed on the main body shell, the ring-shaped magnet is arranged inside the main body shell and positioned on the same axis with the sealing ring above the flow guide hopper, the flow guide hopper and the main body shell are of an integrated structure and communicated with each other, the deodorization partition plate is fixedly installed between the ring-shaped magnet and the internal thread and is in clearance fit with the flow guide hopper, and the internal thread and the deodorization partition plate.
Preferably, the sealing ring is composed of an inner embedded wall, an outer anti-overflow wall and a sealing groove, the bottom end of the inner embedded wall, which is parallel to the bottom end of the outer anti-overflow wall, and the sealing groove are of an integrated structure, and the bottom end of the outer anti-overflow wall and the sealing groove are of an integrated structure.
Preferably, the deodorization partition plate is composed of a water accumulating tank, water outlet holes and a flow dividing bump, the water accumulating tank is located between the water outlet holes and the flow dividing bump, the water outlet holes are evenly distributed around the water outlet holes by using the circle center of the flow dividing bump, and the flow dividing bump and the water accumulating tank are of an integrated structure.
Preferably, the fixed pressing block is provided with three blocks which are uniformly distributed at the small end, the anti-skid lugs are provided with eight blocks which are distributed at the outer side of the connecting sleeve main body, and the water outlet holes are provided with eight blocks which are uniformly distributed around the outer side of the water accumulating groove.
Preferably, the seal ring is preferably a rubber product.
Preferably, the shunt lug is in an inverted U shape, and the diameter of the fixed column plus the length of the clamping plate is equal to the farthest distance between the screwed nut and the male scale.
The working principle is as follows: holding the connecting sleeve main body, screwing a larger metal pipeline into the large end of the reducing connecting device, directly inserting a smaller metal pipeline into the small end, quickly positioning the pipeline by a ring-shaped magnet and attracting the pipeline to enable the pipeline to be embedded with a sealing ring, embedding the outer edge of the pipeline into a sealing groove, tightly attaching the magnetic pipeline and the sealing ring, rotating a screwing nut upwards, fixing and pressing a pipeline by a fixed pressing block through an anti-skid clamping block to prevent the pipeline from falling off or gas and liquid leakage during use, turning a clamping plate downwards to clamp the opening direction of an installation groove to a concave position with scales on the positive scale opposite to the screwing direction of the screwing nut and resist the screwing nut to prevent water flow from flowing through the connecting device from the pipeline quickly in the using process, impacting the pipeline by torrent to generate vibration, and continuously vibrating to loosen the screwing nut on the connecting device for fixing, the connection between pipeline and the connecting device becomes unstable inadequately, it is inseparable, prevent leakage, improve connecting device's duration, when connecting device is used for discharging sewage, sewage is by less pipeline via great pipeline, flow toward the main aspects by the tip, the water conservancy diversion fill makes rivers flow to on the reposition of redundant personnel lug, the reposition of redundant personnel lug is shunted it, the ponding groove of flowing through, flow from the apopore again, some rivers are held back by the ponding groove, some gas that the separation has pungent smell, prevent that gas from returning discharge port or other exports through pipeline and the inside passageway of its connecting device from the upstream, cause the influence to daily life.
Advantageous effects
1. Compared with the prior art, the invention attracts the metal pipeline through the annular magnet, quickly positions the metal pipeline, ensures that the installation is more convenient and quicker, and is more stable and accurate, the pipeline cannot fall off in the later use in a mode of fixing the pressing block by screwing the nut, the sealing ring is nested with the outer edge of the pipeline, and the joint pressure is increased through magnetic force to avoid gas or liquid leakage.
2. Compared with the prior art, the clamping plate is clamped into the positive scale groove which is opposite to the screwing direction of the screwing nut, and the screwing nut is fixed, so that the screwing nut is prevented from loosening in vibration which is continuously generated by a rapid flow impact pipeline.
3. Compared with the prior art, the invention utilizes the water accumulation groove to separate some gases with pungent odor, and prevents the gases from returning to the discharge port or other outlets from the upstream to influence life.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a direct-insert type quick positioning metal pipe reducing connecting device of the invention;
FIG. 2 is a schematic view of a nut for tightening according to the present invention;
fig. 3 is a schematic structural view of the connecting sleeve main body of the invention;
FIG. 4 is a schematic view of a seal ring according to the present invention;
FIG. 5 is a schematic view of another embodiment of the sealing ring of the present invention;
FIG. 6 is a schematic view of a structure of the deodorizing partition board of the present invention;
FIG. 7 is a schematic view of another embodiment of the odor barrier of the present invention;
in the figure: the anti-skidding clamping block comprises a fixed pressing block 1, a small end 2, an anti-skidding clamping block 3, a screwing nut 4 and a screwing nut 4, wherein the screwing nut 4 consists of a nut shell 41, an embedded block 42, a mounting groove 43, a rotating connecting block 44, a fixed column 45, a clamping plate 46, an exposed scale 5, a large end 6, a connecting sleeve main body 7, a main body shell 71, a sealing ring 72, an inner embedding wall 721, an outer anti-overflowing wall 722, a sealing groove 723, a ring-shaped magnet 73, a diversion bucket 74, a deodorization partition plate 75, a water accumulating groove 751, a water outlet 752, a diversion bump 753, an internal.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the fixed compression block 1, the small end 2, the anti-slip clamping block 3, the screwing nut 4, the male scale 5, the large end 6, the connecting sleeve body 7, and the anti-slip bump 8 are characterized in that: one side that fixed compact heap 1 is close to main aspects 6 is integrated structure with one side that adapter sleeve main part 7 is close to tip 2, tip 2 is located same axis with fixed compact heap 1 and runs through adapter sleeve main part 7, antiskid clamp heap 3 is located same axis and outside and fixed compact heap 1 inboard looks welding with tip 2, nut 4 of screwing just with fixed compact heap 1 clearance fit and with fixed compact heap 1 threaded connection, the scale 5 bottom of carving the sun offsets with adapter sleeve main part 7 is integrated structure and tip and nut 4 of screwing for integrated structure, main aspects 6 runs through adapter sleeve main part 7 and tip 2 and link up mutually, antiskid lug 8 is placed perpendicularly between tip 2 and main aspects 6 inboard and adapter sleeve main part 7 integrated structure as an organic whole, antiskid clamp heap 3 chucking pipeline prevents it and drops.
Referring to fig. 2, the screwing nut 4 is composed of a nut shell 41, an insert 42, an installation groove 43, a rotating connecting block 44, a fixing column 45 and a clamping plate 46, the outer side of the nut shell 41 is attached to the inner side of the fixing column 45, the insert 42 is embedded in the nut shell 41 and is in clearance fit with the installation groove 43, the installation groove 43 and the nut shell 41 are in an integrated structure and are parallel to the clamping plate 46, the rotating connecting block 44 is fixedly installed between the insert 42 and the fixing column 45 and is in clearance fit with the installation groove 43, the fixing column 45 and the insert 42 are located on the same axis, one side of the clamping plate 46 close to the rotating connecting block 44 is fixedly installed on the outer side of the fixing column 45, the opening of the installation groove 43 is upward, so that the clamping plate 46 can be detached and replaced, the clamping plate 46 is clamped in a groove of a scale, preventing it from loosening in the vibration generated continuously by the rush current impacting the pipeline.
Referring to fig. 3, the connecting sleeve main body 7 is composed of a main body casing 71, a sealing ring 72, a ring-shaped magnet 73, a diversion bucket 74, a deodorization partition plate 75 and internal threads 76, the inner side of the main body shell 71 close to the small end 2 and the fixed pressing block 1 are of an integrated structure, the sealing ring 72 and the flow guide hopper 74 are positioned on the same axis and are embedded and fixed on the main body shell 71, the ring-shaped magnet 73 is arranged in the main body shell 71 and is positioned above the guide hopper 74 along the same axis with the sealing ring 72, the diversion hopper 74 and the main body shell 71 are of an integrated structure and are communicated with each other, the deodorization partition plate 75 is fixedly arranged between the annular magnet 73 and the internal thread 76 and is in clearance fit with the diversion hopper 74, the internal thread 76 and the deodorization partition plate 75 are positioned on the same axis and are integrated with the main body shell 71, the ring-shaped magnet 73 positions the pipeline quickly, and the efficiency and accuracy of pipeline installation are improved.
Referring to fig. 4-5, the sealing ring 72 is composed of an inner embedded wall 721, an outer anti-overflow wall 722 and a sealing groove 723, the bottom ends of the inner embedded wall 721 and the outer anti-overflow wall 722 parallel to each other are integrated with the sealing groove 723, the bottom end of the outer anti-overflow wall 722 is integrated with the sealing groove 723, and the outer anti-overflow wall 722 and the sealing groove 723 prevent the pipeline from leaking.
Referring to fig. 6-7, the deodorization partition plate 75 is composed of a water collecting groove 751, water outlet holes 752 and diversion bumps 753, the water collecting groove 751 is located between the water outlet holes 752 and the diversion bumps 753, the water outlet holes 752 are evenly distributed around the circumference of the circle center of the diversion bumps 753, the diversion bumps 753 and the water collecting groove 751 are integrated, the diversion bumps 753 divert water flow and enable the water flow to flow through the water collecting groove 751, the water collecting groove 751 traps the water flow, and air with pungent odor is separated through the accumulated water.
The specific working process is as follows:
holding the connecting sleeve main body 7, screwing a larger metal pipeline into the large end 6 of the reducing connecting device, directly inserting the smaller metal pipeline into the small end 2, quickly positioning the pipeline by the annular magnet 73 and attracting the pipeline to enable the pipeline to be embedded with the sealing ring 72, embedding the outer edge of the pipeline into the sealing groove 723, rotating the screwing nut 4 upwards because the magnetic pipeline is tightly attached to the sealing ring, fixing the pipeline by the fixed pressing block 1 through the anti-skid clamping block 3 to prevent the pipeline from falling off or leaking gas and liquid in use, turning the opening direction of the mounting groove 43 opposite to the screwing direction of the screwing nut 4 downwards to twist the clamping plate 46 to clamp the pipe into a concave part with the positive scale 5 opposite to the screwing direction of the screwing nut 4 to prop the screwing nut 4, avoiding that water flow quickly flows through the connecting device from the pipeline in use, rushing to impact the pipeline, enabling the pipeline to vibrate, and enabling the screwing device to loosen the nut used for fixing to loosen, the connection between pipeline and connecting device becomes unstable inadequately, it is inseparable, prevent leakage, improve connecting device's duration, when connecting device is used for discharging sewage, sewage is by less pipeline via great pipeline, flow toward main aspects 6 by tip 2, diversion fill 74 makes rivers flow to reposition of redundant personnel lug 753, reposition of redundant personnel lug 753 shunts it, the ponding groove 751 that flows through, flow out from apopore 752 again, some rivers are held back by ponding groove 751, the separation has some gas of pungent smell, prevent that gas from returning discharge port or other exports through pipeline and the inside passageway of its connecting device adverse current upward, cause the influence to daily life.
The invention solves the problems that the alignment and the positioning are troublesome, the dislocation is easy, the repositioning and the calibration are needed, the time is wasted, or an angle is formed between a pipeline and a connecting device, a gap is generated, when in use, the fluid or the gas in the pipeline leaks, the unnecessary loss and the harm are caused, a nut for screwing and fixing is easy to loosen, the connection between the pipeline and the connecting device is not stable and tight enough, thereby the water and the gas leakage are caused, the endurance is not strong, the maintenance is needed frequently, the gas with pungent smell such as domestic sewage and the like can return to a discharge port or other outlets in a countercurrent way through the pipeline and a channel in the connecting device, and the daily life is influenced, the invention positions the pipeline rapidly by combining the components, improves the efficiency and the accuracy of pipeline installation, saves the time, the sealing ring 72 is nested with the outer edge of the pipeline, and through magnetic force increase laminating pressure, avoid when using, the fluid or the gas leakage in the pipeline cause unnecessary loss and harm, cardboard 46 blocks into and screws in the reverse positive scale 5 recess of nut 4 with screwing, and fixed nut 4 of screwing prevents that it from taking off in the vibration that the torrent impacted the pipeline constantly produced, utilizes water accumulation groove 751 to separate some gas that have sharp smell, prevents that gas from returning discharge port or other exports upstream, influences the life.
The foregoing merely illustrates the principles and preferred embodiments of the invention and many variations and modifications may be made by those skilled in the art in light of the foregoing disclosure, which are intended to be within the scope of the invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. The utility model provides a cut straightly quick location tubular metal resonator reducing connecting device which the structure includes fixed compact heap (1), tip (2), anti-skidding clamp block (3), nut (4) of screwing, positive scale (5), main aspects (6), adapter sleeve main part (7), skid proof block (8), its characterized in that: one side of the fixed compaction block (1) close to the large end (6) and one side of the connecting sleeve main body (7) close to the small end (2) are of an integrated structure, the small end (2) and the fixed compact block (1) are positioned on the same axis and penetrate through the connecting sleeve main body (7), the antiskid clamping block (3) and the small end (2) are positioned on the same axis, the outer side of the antiskid clamping block is welded with the inner side of the fixed pressing block (1), the screwing nut (4) is in clearance fit with the fixed pressing block (1) and is in threaded connection with the fixed pressing block (1), the bottom end of the male scale (5) is integrated with the connecting sleeve main body (7) and the male scale (5) is pressed against the screwing nut (4), the big end (6) penetrates through the connecting sleeve main body (7) to be communicated with the small end (2), the anti-skid lugs (8) are vertically arranged on the outer side of the connecting sleeve main body (7) and are integrated with the connecting sleeve main body (7) into a whole;
the screwing nut (4) is composed of a nut shell (41), an embedded block (42), an installation groove (43), a rotating connecting block (44), a fixed column (45) and a clamping plate (46), the outer side of the nut shell (41) is attached to the inner side of the fixed column (45), the embedded block (42) is installed inside the nut shell (41) in an embedded mode and in clearance fit with the installation groove (43), the installation groove (43) and the nut shell (41) are of an integrated structure and are parallel to the clamping plate (46), the rotating connecting block (44) is fixedly installed between the embedded block (42) and the fixed column (45) and in clearance fit with the installation groove (43), the fixed column (45) and the embedded block (42) are located on the same axis, and one side, close to the rotating connecting block (44), of the clamping plate (46) is fixedly installed on the outer side of the;
the connecting sleeve main body (7) consists of a main body outer shell (71), a sealing ring (72), a ring-shaped magnet (73), a flow guide hopper (74), a deodorization partition plate (75) and internal threads (76), the inner side of the main body shell (71) close to the small end (2) and the fixed pressing block (1) are of an integrated structure, the sealing ring (72) and the flow guide hopper (74) are positioned on the same axis and are embedded and fixed on the main body shell (71), the ring-shaped magnet (73) is arranged in the main body shell (71) and is positioned above the diversion hopper (74) along the same axis with the sealing ring (72), the flow guide hopper (74) and the main body shell (71) are of an integrated structure and are communicated with the main body shell, the deodorization partition plate (75) is fixedly arranged between the annular magnet (73) and the internal thread (76) and is in clearance fit with the diversion bucket (74), the internal thread (76) and the deodorization partition plate (75) are positioned on the same axis and integrated with the main body shell (71);
the sealing ring (72) is composed of an inner embedded wall (721), an outer anti-overflow wall (722) and a sealing groove (723), the bottom ends of the inner embedded wall (721) and the outer anti-overflow wall (722) which are parallel to each other and the sealing groove (723) are of an integrated structure, and the bottom end of the outer anti-overflow wall (722) and the sealing groove (723) are of an integrated structure;
the deodorization partition plate (75) is composed of a water collecting groove (751), a water outlet hole (752) and a shunting bump (753), wherein the water collecting groove (751) is located between the water outlet hole (752) and the shunting bump (753), the water outlet hole (752) is evenly distributed around the shunting bump (753) by the circle center, and the shunting bump (753) and the water collecting groove (751) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432044.6A CN109611624B (en) | 2018-11-28 | 2018-11-28 | Direct-insertion type quick-positioning metal pipe reducing connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432044.6A CN109611624B (en) | 2018-11-28 | 2018-11-28 | Direct-insertion type quick-positioning metal pipe reducing connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109611624A CN109611624A (en) | 2019-04-12 |
| CN109611624B true CN109611624B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811432044.6A Active CN109611624B (en) | 2018-11-28 | 2018-11-28 | Direct-insertion type quick-positioning metal pipe reducing connecting device |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5931508A (en) * | 1997-10-14 | 1999-08-03 | Chapin Manufacturing, Inc. | Fluid coupling |
| JP3189095B2 (en) * | 1999-04-28 | 2001-07-16 | 日本ピラー工業株式会社 | Resin pipe fittings |
| US6692036B2 (en) * | 2000-08-04 | 2004-02-17 | Saint-Gobain Performance Plastics | Universal interlocking fitting |
| CN100408868C (en) * | 2006-05-22 | 2008-08-06 | 钟伟杰 | Hidden plate connecting device |
| CN201459907U (en) * | 2009-07-03 | 2010-05-12 | 吴和良 | Environmental-friendly manhole cover |
| CN203477678U (en) * | 2013-08-15 | 2014-03-12 | 浙江志达管业有限公司 | Novel slip-on flange |
| CN203962456U (en) * | 2014-05-28 | 2014-11-26 | 上虞市当代风机风冷设备有限公司 | Outlet is provided with the blower fan of Sealing |
| CN207349662U (en) * | 2017-09-21 | 2018-05-11 | 徐军 | A kind of overall plastic straight cutting structure pipe fitting |
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2018
- 2018-11-28 CN CN201811432044.6A patent/CN109611624B/en active Active
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