CN100529499C - Pipe joint - Google Patents
Pipe joint Download PDFInfo
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- CN100529499C CN100529499C CNB2006100550825A CN200610055082A CN100529499C CN 100529499 C CN100529499 C CN 100529499C CN B2006100550825 A CNB2006100550825 A CN B2006100550825A CN 200610055082 A CN200610055082 A CN 200610055082A CN 100529499 C CN100529499 C CN 100529499C
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- flake
- carriage
- pipe
- joint
- adapter body
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Abstract
The invention provides a kind of pipe joint for the use of metal pipes. The pipe joint needs no fasten work for its thread, no use of special instruments and other instruments. The desquamation can be prevented only through the insertation of the pipe. The pipe joint includes the main body of the joint, a peristome for the insertation of the pipe, a bracket which can prevent desquamation with the shape of cylinder whose inner diameter is a litter bigger than the pipe's external diameter and can move toward the direction of the main body of the joint a little, a slive which is installed on the incising part of the bracket that can move toward the direction of outside place of the bracket, and meet the surface of the out circle of the joint pipe, a workpice which can prevent desquamation embeded outside the slice and the bracket pushing the slice in the direction of the joint pipe's core, a prick-shaped external pipe including a prick-shaped part on the inner surface that get across through the shrinkage cavity from the side of the main body of the joint to the pipe of the end. The pick-shaped part is wedged on the main body of the joint in the manner of meeting the workpiece that makes the workpiece meet the prick-shaped part of the external pipe with the prick shape. So the desquamation from the joint of the pipe that has been inserted into the joint is prevented.
Description
Technical field
The present invention relates to a kind of pipe joint, the connection that it is applicable to metal tube is particularly useful for the connection of Stainless Steel Tube.
Background technique
In the prior art,, especially when connecting Stainless Steel Tube, to use pipe joint at the metal tube that connects the force feed fluid.Present employed pipe joint has following various pattern, that is: screw cutting on pipe is screwed into pipe in the screwed pipe; Pipe is inserted the inboard pipe joint that is provided with Sealing, use instrument crimping corresponding to pipe joint; With special tool the expanded in diameter of tube end is become chevron, be pressed into this screw thread with acorn nut again and throw off to prevent pipe; Have towards the taper inner face of pipe joint front end undergauge, will block only by the helical spring and the conical surface that member presses against on the pipe, when applying active force on the disengaged direction at pipe, then make card end the member roof pressure on pipe, prevent disengagement thus; By on circular anticreep member, being screwed into acorn nut, thereby nip the anticreep member first-class at reducing pipe.
Yet, among above-mentioned existing pipes joint, there is a kind of pipe joint to need the instrument of cutting tube screw thread or the special tool of crimping and hole enlargement, this pipe joint disadvantage is both to have needed to carry instrument, also will take time and come pipe processing with instrument.Though have a kind of pipe joint not use special tool but will be by being screwed into acorn nut so that the anticreep member is nipped on pipe, this pipe joint disadvantage is, when be used for stainless steel such than the hard tube material time, need be screwed into acorn nut with bigger strength, so necessary use longly spanner or pipe wrench, difficulty connects operation in the narrow and small place of area.In addition, also have the helical spring of a kind of pipe joint by taper inner face and interior dress only will block member and press against on the pipe in case anti-avulsion is opened, the shortcoming that this pipe joint exists is, because helical spring is housed in pipe joint, so joint length is elongated, be difficult for being provided with pipe joint in the narrow and small place of area.
(patent documentation 1) real fair 7-55424 communique (0016, Fig. 1, Fig. 3, Fig. 4)
(patent documentation 2) spy open the 2001-295974 communique (0014, Fig. 1)
(patent documentation 3) spy open flat 10-196860 communique (0004,0005, Fig. 1, Fig. 7)
Summary of the invention
For this reason, the object of the present invention is to provide a kind of pipe joint, this pipe joint need not the use of terminal operation and special tool and other instrument, only can prevent the disengagement of pipe in the insertion tube.
In addition, but another object of the present invention is to provide a kind of pipe joint of shortening joint length.
In addition, another object of the present invention is to provide a kind of pipe joint, this pipe joint carries out the assembling of overall package or component easily, even effect has bigger pulling capacity on pipe, also can obtain bigger drawing and stop power.
In addition, another object of the present invention is to provide a kind of pipe joint, this pipe joint can decompose pipe joint integral body, by changing less expensive member, thereby is easy to regeneration, utilizes or repairs.
In addition, another object of the present invention is to provide a kind of pipe joint, this pipe joint is when implementing, both can be make 2 pipes as the crow flies with the corresponding to base of tubular axis, also can form elbow, service tee, reducing base, one-sided threaded joint and other arbitrary form, have higher design freedom.
To achieve these goals, structure of the present invention comprises: adapter body has the seal groove that Sealing is installed at the opening portion side inner face that is used for inserting connecting tube; Anti-flake carriage is cylindric, and this barrel bore is provided with a plurality of notchs less times greater than the external diameter of connecting tube on its circumference, be used for installing anti-flake, and anti-flake carriage can a little moves to the adapter body direction for this; Anti-flake is installed on the above-mentioned notch of anti-flake carriage, can a little move to the outer direction of this anti-flake carriage, and be connected on the outer circumferential face of connecting tube; Anti-flake casting die is embedded in outward on the anti-flake carriage of anti-flake and (perhaps), at the anti-flake of tube core direction pushing of connecting tube; The taper outer tube has pipe by the hole in the end, and has from adapter body one side direction at inner face and the tapered portion of pipe by the hole undergauge, and this tapered portion is ended on adapter body with the mode card that is connected on the anti-flake of anti-flake casting die and (perhaps).
In addition, the present invention can make the inboard width of the notch of preventing the flake carriage narrower slightly than anti-flake in the preceding paragraph pipe joint, and outside width is wideer than anti-flake.
In addition, the present invention can be installed the ring-type padded coaming of being made up of elastic material additional between adapter body and anti-flake carriage in above-mentioned arbitrary pipe joint, can make anti-flake, anti-flake carriage and anti-flake casting die mobile a little to adapter body one side.
In addition, the present invention is in above-mentioned arbitrary pipe joint, can make the hardness of anti-flake be higher than connecting tube, anti-flake carriage, anti-flake casting die and taper outer tube, should prevent that flake had the sharp keen tooth of appropriate stage-number, the nip outer circumferential face of connecting tube of these teeth will be become less than the formed angle of inner face by connecting tube and taper outer tube by the straight line on the summit that connects above-mentioned tooth and the formed angular setting in back of its anti-flake.
In addition, the present invention is in above-mentioned arbitrary pipe joint, the relative seal groove of Sealing loads and unloads freely, the mode that the taper outer tube can be threadably engaged is loaded and unloaded on adapter body, after taper outer tube and adapter body were separated, anti-flake carriage can separate with adapter body, and anti-flake casting die can separate with anti-flake carriage, and when separating anti-flake casting die from anti-flake carriage, anti-flake also can separate with anti-flake carriage.
In addition, the present invention is in above-mentioned arbitrary pipe joint, and anti-preferably identical with the pipe joint metal of flake casting die is made, and covers the thin-wall metal rounding tubular of anti-flake fully, but also can make the thin-wall metal system band shape of a part that covers anti-flake.Anti-flake casting die can also be that rubber-like elastic body is made.At anti-flake casting die is under the rubber-like elastic body situation about making, owing to require thickness to a certain degree, so preferably form the band shape of the part of covering except the head portion that the tapered portion with anti-flake connects.
The present invention is in above-mentioned arbitrary pipe joint, can also can be any form that forms in base, elbow, service tee, reducing base, the one-sided screwed joint both with 2 pipes as implementing with the corresponding to as the crow flies base of tubular axis.
The present invention is by following structure, that is: adapter body; Can be to the anti-flake carriage that moves in the adapter body direction; Be installed in the anti-flake on the anti-flake carriage; The anti-flake casting die of embedding outside on anti-flake and (perhaps) anti-flake carriage; With the tapered portion card end on the adapter body to be connected to the taper outer tube on the anti-flake of anti-flake casting die and (perhaps), when the pipe from the taper outer tube inserts connecting tube by the hole, anti-flake carriage and anti-flake and anti-flake casting die are pushed on the adapter body direction simultaneously, and towards a little moves away from the direction of taper outer tube, at this moment, the anti-pipe of flake by having inserted, move while revolting the outer direction of anti-flake carriage towards anti-flake carriage, the cross section of anti-flake casting die is deformed into polygonal from circle thereupon, but the butt between the anti-flake of tapered portion by the taper outer tube and anti-flake casting die and (perhaps), sustainable keep will anti-flake casting die anti-flake press against active force on the pipe.Not with using any special tool, only the pipe from the taper outer tube gets final product by hole insertion connecting tube when connecting, and can not come off from pipe joint thus.
In addition, the present invention also has following structure in said structure, that is: be embedded in anti-flake and (perhaps) outward and prevent the flake carriage, the anti-flake casting die and the taper outer tube of the anti-flake of pushing on the tube core direction of connecting tube, need not to be used for pushing the spiral winding of preventing flake by this structure, just can make the part of the length minimizing spiral winding of pipe joint.
In addition, the present invention also has following structure in said structure, that is: make the inboard width of the notch of preventing the flake carriage narrower slightly than anti-flake, outside width is wideer than anti-flake, be easy to anti-flake is installed on the anti-flake carriage by this structure, make the anti-flake of installation be difficult for throwing off anti-flake carriage, thereby be convenient to assemble the escapement that constitutes by anti-flake carriage, anti-flake and anti-flake casting die.
In addition, the present invention also has following structure in said structure, that is: between adapter body and anti-flake carriage, install the ring-type padded coaming of forming by elastic material additional, a little moves to adapter body one side at anti-flake, anti-flake carriage and anti-flake casting die thereby can make, by this structure, can strengthen the space between the tapered portion of escapement and taper outer tube, be easy to enlarge anti-flake, thereby be easy to pipe from the taper outer tube of connecting tube by inserting the hole.
In addition, the present invention passes through in the following ways in said structure, that is: the hardness of anti-flake is higher than connecting tube, anti-flake carriage, anti-flake casting die and taper outer tube, in addition, should prevent that flake also comprised a plurality of sharp keen tooth of reasonable quantity, these teeth are nipped on the outer circumferential face of connecting tube, when set angle, make the formed angle in back of the straight line and its anti-flake on the summit that connects above-mentioned tooth, the formed angle of inner face less than connecting tube and taper outer tube, can further reduce the resistance when the pipe of the taper outer tube of connecting tube inserts by the hole thus, thus insertion tube easily.And, when applying bigger withdrawal force on the pipe that is connecting, then the tapered portion of taper outer tube will prevent that the active force of flake roof pressure to the pipe can the generation effect, this active force concentrates on the tooth that is positioned at adapter body one side most, stop power to pipe generation effect as bigger drawing, when acting on the pipe to bigger pulling capacity, set angle is so that connect the formed angle in back of the straight line on summit and its anti-flake of above-mentioned tooth, the formed angle of inner face less than connecting tube and taper outer tube, thus, though being subjected to the dilatory of pipe 1, moves by anti-flake carriage 7 towards the direction opposite with adapter body 4, just can be but move a little with the 2nd, the 3rd tooth is nipped on pipe, stops power so can have bigger drawing.
In addition, the present invention is in said structure, Sealing seal groove relatively loads and unloads freely, modes such as the taper outer tube can be threadably engaged are loaded and unloaded on adapter body, after taper outer tube and adapter body are separated, not only anti-flake carriage 7 can separate with adapter body, anti-flake casting die can separate with anti-flake carriage, and when separating anti-flake casting die from anti-flake carriage, anti-flake also can separate with anti-flake carriage, detachable thus whole pipe joint is changed described Sealing, these cheap members of escapement, thus be easy to regeneration, utilize again or repairing.
And, the present invention is in said structure, no matter be that anti-flake casting die is taken as the thin-wall metal rounding tubular that covers anti-flake fully, still be taken as the metallic band shape of a part that covers anti-flake, still form the rubber-like elasticity system band shape of a part that covers anti-flake, all can obtain the above-mentioned effect of expection, in addition, in above-mentioned arbitrary pipe joint, both can be used as and made 2 pipes straighten and implement with the corresponding to base of tubular axis, also can form elbow, service tee, the reducing base, one-sided threaded joint and other arbitrary form, thus the design freedom advantage of higher had.
Description of drawings
Fig. 1 be embodiment of the present invention 1 omission the sectional view under the user mode of hatching.
Fig. 2 is the sectional view of hatching that has omitted the mode of execution of the Fig. 1 in the insertion tube.
Fig. 3 is the half sectional view that has omitted the hatching of the escapement of being made up of anti-flake carriage, anti-flake and anti-flake casting die.
Fig. 4 is by the side view of preventing the escapement that flake carriage, anti-flake and anti-flake casting die are formed.
Fig. 5 is the sectional view that has omitted the hatching of the anti-flake carriage that separates under the anti-flake casting die state and anti-flake.
Fig. 6 be omitted Fig. 5 hatching along the A-A line to looking sectional view.
Fig. 7 is the half sectional view that has omitted the hatching that separates the anti-flake carriage under the anticreep sheet state.
Fig. 8 is the plan view of anti-flake casting die.
Fig. 9 is the side view of anti-flake casting die.
The side view of the escapement of forming by anti-flake carriage, anti-flake and anti-flake casting die when Figure 10 is insertion tube.
Description of reference numerals:
1 connecting tube
2 Sealings
3 seal grooves
4 adapter body
5 anti-flakes
6 notchs
7 anti-flake carriages
8 anti-flake casting dies
9 pipes pass through the hole
10 tapered portion
11 taper outer tubes
12 padded coamings
13 sawtooth
Embodiment
Below, with reference to the accompanying drawings embodiments of the present invention are described.
Below, what Fig. 1 represented is that 2 pipes are implemented mode of the present invention as the corresponding to as the crow flies base of tubular axis, this mode of execution comprises: adapter body 4 has the seal groove 3 that Sealing 2 is installed at the opening portion side inner face that is used for inserting connecting tube 1; Anti-flake carriage 7 is cylindric, and this barrel bore is less times greater than the external diameter of connecting tube 1, on its circumferential surface by circumference on the angle of five equilibrium be provided with a plurality of notchs 6 that are used for installing anti-flake 5, this anti-flake carriage can a little moves to adapter body 4 directions; Anti-flake 5 is installed on the above-mentioned notch 6 of anti-flake carriage 7, thereby can a little moves to the outer direction of this anti-flake carriage 7, and is connected on the outer circumferential face of connecting tube 1; Anti-flake casting die 8 is embedded in anti-flake 5 and anti-flake carriage 7 outward, at the anti-flake 5 of tube core direction pushing of connecting tube 1; Taper outer tube 11 has pipe by the hole in the end, and has from adapter body 4 one side direction at inner face and the tapered portion 10 of pipe by hole 9 undergauges, and card ends on adapter body 4, makes this tapered portion 10 be connected on the anti-flake casting die 8.The number of notch 6 and anti-flake 5 is 6 in legend, but also can be suitably selected according to the internal diameter of adapter body 4.
The inboard width of the notch 6 of anti-flake carriage 7 is narrower slightly than anti-flake 5, and outside width is wideer than anti-flake 5.
In addition, between adapter body 4 and anti-flake carriage 7, install the ring-type padded coaming of forming by the rubber elastomeric material 12 additional, but can will prevent that a little moves to adapter body 4 one sides for flake 5, anti-flake carriage 7 and anti-flake casting die 8.
Anti-flake 5 is metallic, its hardness is higher than anti-flake carriage 7, anti-flake casting die 8 and taper outer tube 11, should prevent that flake 5 had a plurality of sharp keen sawtooth 13 of appropriate stage-number, these sawtooth are nipped on the outer circumferential face of connecting tube 1, become the formed angle of inner face less than connecting tube 1 and taper outer tube 11 at the formed angular setting in back of the anti-flake 5 of straight line and its on the summit that will connect above-mentioned sawtooth 13.
In the illustrated embodiment, Sealing 2 seal groove 3 relatively loads and unloads freely, the female thread of taper outer tube 11 releasably threadingly engages on the external screw thread of adapter body 4 outer circumferential faces, after taper outer tube 11 and adapter body 4 are separated, anti-flake carriage 7 can separate with adapter body 4, anti-flake casting die 8 can separate with anti-flake carriage 7, and when separating anti-flake casting die 8 from anti-flake carriage 7, anti-flake 5 also can separate with anti-flake carriage 7.
In addition, be embedded with anti-flake casting die 8 outside on anti-flake 5 and anti-flake carriage 7, this anti-flake casting die 8 is identical with pipe joint also to be thin-wall metal rounding tubular, can cover fully and prevent flake 5.When enforcement is of the present invention, originally be to form following shape but, promptly cover rubber-like elasticity system band shape of preventing flake 5 or the thin-wall metal system band shape that covers the part of anti-flake 5 fully.
When anti-flake casting die 8 is taken as when covering anti-flake 5 cylindric fully, anti-flake casting die 8 can be connected on the tapered portion 10 of taper outer tube 11, but when anti-flake casting die 8 only covers under the situation of a part of preventing flake 5, when for example anti-flake casting die 8 is the thin-walled band shape, anti-flake casting die 8 and anti-flake 5 are connected on the tapered portion 10 of taper outer tube 11, and perhaps only anti-flake 5 is connected on the tapered portion 10 of taper outer tube 11.
As shown in Figure 2, when the pipe from the taper outer tube 11 of aforementioned tube joint inserts the pipe 1 that is connected on the anti-flake carriage 7 by hole 9, by the escapement of preventing that flake carriage 7, anti-flake 5 and anti-flake casting die 8 constitute, friction by anti-flake carriage 7 and pipe 1, a little moves to adapter body 4 directions while the elasticity of revolting padded coaming 12, after the tapered portion 10 of taper outer tube 11 and the butt of anti-flake casting die 8 are disengaged, between the tapered portion 10 of escapement and taper outer tube 11, can produce the gap.On the other hand, connect by outer circumferential face with the pipe 1 that has inserted, anti-flake 5 is pushed and is moved towards the outer direction of preventing flake carriage 7, this moment, the cross section of anti-flake casting die 8 was deformed into polygonal (with reference to Figure 10) from circle, but be connected on the tapered portion 10 of taper outer tube 11 up to anti-flake casting die 8, hinder being moved further of anti-flake casting die 8 further distortion and anti-flake 5 thus, when pipe 1 insertion finishes, by the anti-flake casting die 8 that connects with tapered portion 10, therefore sawtooth 13 roof pressures that will prevent flake 5 with brute force firmly connect pipe 1 and can not throw off from pipe joint on the outer circumferential face of pipe 1.
Insert connecting tube 1 and make anti-flake carriage 7 make the amount of movement of anti-flake 5 direction outside anti-flake carriage 7 towards anti-flake carriage 7 towards the amount of movement of adapter body 4 directions with because of the outer circumferential face with the connecting tube 1 that has inserted connects, the inclination of the tapered portion 10 by suitable setting taper outer tube 11 can obtain bigger drawing and stop power.
In addition, should prevent that flake 5 had a plurality of sharp keen sawtooth 13 of appropriate stage-number, these sawtooth are nipped on the outer circumferential face of connecting tube 1, and the formed angular setting in back that connects the straight line on summit of above-mentioned sawtooth 13 and its anti-flake 5 is become the formed angle of inner face less than connecting tube 1 and taper outer tube 11.Therefore, move towards the direction opposite, move a little and just the 2nd, the 3rd tooth can be nipped on pipe, so can obtain bigger drawing prevention power with adapter body 4 though anti-flake carriage 7 is subjected to the dilatory of pipe 1.
And, the inboard width of the notch 6 of anti-flake carriage 7 is narrower slightly than anti-flake 5, outside width is wideer than anti-flake 5, be easy to thus anti-flake 5 is installed on the anti-flake carriage 7, make the anti-flake 5 of installation be difficult for throwing off anti-flake carriage 7, thereby be convenient to assemble the escapement that constitutes by anti-flake carriage 7, anti-flake 5 and anti-flake casting die 8.
In addition, by between adapter body 4 and anti-flake carriage 7, installing ring-type padded coaming 12 additional, can strengthen the space between the tapered portion 10 of escapement and taper outer tube 11, be easy to enlarge anti-flake 5, thereby be easy to pipe from the taper outer tube 11 of connecting tube 1 by inserting the hole 9.
In addition, Sealing 2 seal groove 3 relatively loads and unloads freely, the mode that taper outer tube 11 can be threadably engaged is loaded and unloaded on adapter body 4, after taper outer tube 11 and adapter body 4 are separated, anti-flake carriage 7 can separate with adapter body 4, anti-flake casting die 8 can separate with anti-flake carriage 7, and when separating anti-flake casting die 8 from anti-flake carriage 7, anti-flake 5 also can separate with anti-flake carriage 7, detachable thus whole pipe joint, change described Sealing 2, these cheap members of escapement, thereby be easy to regeneration, utilize again or repair.
Claims (6)
1. pipe joint comprises: adapter body has the seal groove that Sealing is installed at the opening portion side inner face that is used for inserting connecting tube; Anti-flake carriage is cylindric, and this barrel bore is provided with a plurality of notchs less times greater than the external diameter of connecting tube on its circumference, be used for installing anti-flake, and anti-flake carriage can a little moves to the adapter body direction for this; Anti-flake is installed on the above-mentioned notch of anti-flake carriage, can a little move to the outer direction of this anti-flake carriage, and be connected on the outer circumferential face of connecting tube; Anti-flake casting die is embedded in outward on anti-flake and/or the anti-flake carriage, at the anti-flake of tube core direction pushing of connecting tube; The taper outer tube has pipe by the hole in the end, and has from adapter body one side direction at inner face and the tapered portion of pipe by the hole undergauge, and this tapered portion is ended on adapter body with the mode card that is connected on anti-flake casting die and/or the anti-flake,
The hardness of anti-flake is higher than connecting tube, anti-flake carriage, anti-flake casting die and taper outer tube, should prevent that flake had the sharp keen tooth of appropriate stage-number, the nip outer circumferential face of connecting tube of these teeth will be become less than the formed angle of inner face by connecting tube and taper outer tube by the straight line on the summit that connects above-mentioned tooth and the formed angular setting in back of its anti-flake.
2. pipe joint as claimed in claim 1 is characterized in that, the inboard width of the notch of anti-flake carriage is narrower slightly than anti-flake, and outside width is wideer than anti-flake.
3. pipe joint as claimed in claim 1 or 2 is characterized in that, installs the ring-type padded coaming of being made up of elastic material additional between adapter body and anti-flake carriage, can make anti-flake, anti-flake carriage and anti-flake casting die mobile a little to adapter body one side.
4. pipe joint as claimed in claim 1 or 2, it is characterized in that, the relative seal groove of Sealing loads and unloads freely, the mode that the taper outer tube can be threadably engaged is loaded and unloaded on adapter body, after taper outer tube and adapter body were separated, anti-flake carriage can separate with adapter body, and anti-flake casting die can separate with anti-flake carriage, and when separating anti-flake casting die from anti-flake carriage, anti-flake also can separate with anti-flake carriage.
5. pipe joint as claimed in claim 1 or 2, it is characterized in that, anti-flake casting die is thin-wall metal rounding tubular or the rubber-like elastic body rounding tubular that covers anti-flake fully, or covers the thin-wall metal system band shape or the rubber-like elasticity system band shape of the part of anti-flake.
6. pipe joint as claimed in claim 1 or 2 is characterized in that, the form of pipe joint is any in base, elbow, service tee, the one-sided screwed joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100550825A CN100529499C (en) | 2006-03-03 | 2006-03-03 | Pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100550825A CN100529499C (en) | 2006-03-03 | 2006-03-03 | Pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101029699A CN101029699A (en) | 2007-09-05 |
| CN100529499C true CN100529499C (en) | 2009-08-19 |
Family
ID=38715190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100550825A Active CN100529499C (en) | 2006-03-03 | 2006-03-03 | Pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100529499C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644401A (en) * | 2013-11-21 | 2014-03-19 | 无锡睿网科技有限公司 | Pipeline union joint |
| CN106793926B (en) * | 2015-05-20 | 2019-04-19 | 奥林巴斯株式会社 | Insertion apparatus |
| CN110513552B (en) * | 2019-09-10 | 2024-04-19 | 安徽拓扑思汽车零部件有限公司 | Elastic band anticreep function's air pipe joint |
| CN113339604B (en) * | 2021-06-21 | 2022-07-26 | 中建八局第二建设有限公司 | Anti-seepage device for water supply and drainage pipes in building engineering |
-
2006
- 2006-03-03 CN CNB2006100550825A patent/CN100529499C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101029699A (en) | 2007-09-05 |
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Owner name: BIANKUAN JAPAN CO., LTD. Free format text: FORMER OWNER: BENKESI CO., LTD. Effective date: 20100122 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20100122 Address after: Tokyo, Japan, Japan Patentee after: Japan Ltd. Address before: Tokyo, Japan, Japan Patentee before: Benx Co., Ltd. |
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| CP03 | Change of name, title or address |
Address after: Gunma Patentee after: Benkan Corp Address before: Tokyo, Japan, Japan Patentee before: Japan Ltd. |
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| CP03 | Change of name, title or address |