CN205678325U - A kind of threeway cap assembly - Google Patents
A kind of threeway cap assembly Download PDFInfo
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- CN205678325U CN205678325U CN201620599011.0U CN201620599011U CN205678325U CN 205678325 U CN205678325 U CN 205678325U CN 201620599011 U CN201620599011 U CN 201620599011U CN 205678325 U CN205678325 U CN 205678325U
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- threeway
- cowlings
- way connection
- cap assembly
- joint
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Abstract
The utility model discloses a kind of threeway cap assembly, including three cowlings and three-way connection；Inner chamber in the tube wall of described three-way connection is cone shape, and the blind hole outer shape of described shrinkproof pit hole adapts with the cavity shape in the tube wall of described three-way connection；Form interference fit between the blind hole outer wall of described three cowlings and the inner chamber of described three-way connection.The threeway cap assembly that the utility model provides, have employed the design of interference fit, and its assembling close structure is reliable, the many technical advantages of good seal performance (can prevent leakage) etc..
Description
Technical field
The utility model relates to technical field of medical instruments, especially relates to a kind of threeway cap assembly.
Background technology
It is known that Medical tee joint pipe (i.e. including threeway and three cowlings composition construction package) is at present at clinical position
In use more universal；Three-way pipe is used in the medical care precess such as venous transfusion and pressure monitoring in most cases, real work
In it is also used for other medical treatment, NP (for example: splanchnocoel punctures application etc., no longer repeats this one by one) by us.
It will be apparent that threeway cap assembly is mainly by three cowlings and threeway, (i.e. threeway is mainly by three-way connection phase on three directions
Connection is constituted) constitute；Three cowlings can be screwed on three-way connection, for implementing to threeway to screw fastening and realizing to threeway
Sealing sealing process, and simultaneously work as avoiding bacterium to enter the effect of threeway；In addition, three cowlings also can be from three-way connection
The operations such as venting can be carried out after disassembling.
But, the most structure of threeway cap assembly being frequently used in current conventional art is relatively simple, and defect is more；
Tradition threeway cap assembly is typically all simple three cowlings and three-way connection is implemented screwed and realized sealing；Tradition
On the outer wall of three-way connection, external screw thread is full thread, and the internal thread of its three cowling of threeway cap assembly is real with the external screw thread of three-way connection
Execute simply threaded；It will be apparent that tradition threeway cap assembly structure in, three cowlings and between three-way connection only by letter
Single is threaded, and this attachment structure does not fastens, and sealing effectiveness is bad, easily causes the problems such as leakage.
Therefore, the above-mentioned technological deficiency how overcoming tradition threeway cap assembly is urgently to be resolved hurrily the asking of those skilled in the art
Topic.
Utility model content
The utility model provides a kind of threeway cap assembly, in order to solve above-mentioned technical problem.
The utility model be the technical scheme is that by solving the problems referred to above
The utility model provides a kind of threeway cap assembly, including three cowlings and three-way connection；
The top being positioned at described three cowlings is provided with cross bar-shaped trough；
The bottom of the described cross bar-shaped trough being positioned on described three cowlings is additionally provided with shrinkproof pit hole；And described shrinkproof pit hole
For blind hole；There is gap between the blind hole outer wall of described shrinkproof pit hole and the inwall of described three cowlings, described gap is used for embedding
The tube wall of three-way connection；It is provided with external screw thread outside the tube wall of described three-way connection；In being provided with on the inwall of described three cowlings
Screw thread；External screw thread on the tube wall of described three-way connection is half-thread；The internal thread of described three cowlings and described three-way connection
External screw thread on tube wall is connected；
The blind hole outer wall of described shrinkproof pit hole is truncated conical shape, and the inner chamber in the tube wall of described three-way connection is cone
Shape, and the blind hole outer shape of described shrinkproof pit hole adapts with the cavity shape in the tube wall of described three-way connection；Described three
Form interference fit between the blind hole outer wall of cowling and the inner chamber of described three-way connection.
Preferably, as a kind of embodiment；The bottom of described shrinkproof pit hole protrudes from outside the bottom of described three cowlings
Edge.
Preferably, as a kind of embodiment；The inwall of the blind hole outer wall of described shrinkproof pit hole and described three cowlings it
Between gap in be additionally provided with annular seal circle.
Preferably, as a kind of embodiment；The outside dimension of described annular seal circle and the width in described gap
Size adapts.
Preferably, as a kind of embodiment；Described annular seal circle is medical silica-gel sealing ring or medical grade rubber
Sealing ring.
Preferably, as a kind of embodiment；Described three cowlings are specially medical grade ABS injection structure part.
Preferably, as a kind of embodiment；Described three-way connection is specially medical grade PVC injection structure part.
Preferably, as a kind of embodiment；Described three-way connection includes that the first joint and the second joint and the 3rd connect
Head；Described first joint and the second fittings are flat, and described 3rd joint and described first joint and described second
The junction connection of joint.
Preferably, as a kind of embodiment；Described first joint is bonding with the pipeline that external diameter is 3.9mm to be coordinated；And
Described second joint is bonding with the pipeline that external diameter is 3.9mm to be coordinated.
Preferably, as a kind of embodiment；Described 3rd joint on described three-way connection and described three cowlings
Threaded engagement.
Compared with prior art, the advantage of the utility model embodiment is:
A kind of threeway cap assembly that the utility model provides, is mainly made up of three cowlings and the big structure division of threeway two.
Wherein in the structure of three cowlings: the bottom of the described cross bar-shaped trough being positioned on described three cowlings is additionally provided with anti-
Contracting pit hole；And described shrinkproof pit hole is blind hole；Exist between the blind hole outer wall of described shrinkproof pit hole and the inwall of described three cowlings
Gap, described gap is for embedding the tube wall of three-way connection；It is provided with external screw thread outside the tube wall of described three-way connection；Described three
It is provided with internal thread on the inwall of cowling；The internal thread of described three cowlings coordinates with the external screw thread on the tube wall of described three-way connection
Connect；
The blind hole outer wall of described shrinkproof pit hole is truncated conical shape, and the inner chamber in the tube wall of described three-way connection is cone
Shape, and the blind hole outer shape of described shrinkproof pit hole adapts with the cavity shape in the tube wall of described three-way connection；Described three
(of paramount importance improvement is three cowlings to form interference fit between the blind hole outer wall of cowling and the inner chamber of described three-way connection
Interference fit with three-way connection).
In traditional threeway cap assembly structure, owing to, during producing and using, full thread is difficult to align, and repeatedly revolves
Could alignment angle carry out locked after Zhuaning.Half-thread in the utility model structure can align when any angle, directly
Rotation carries out locked, and can reach the locking force of full thread, improves production efficiency, and is easy to use.Meanwhile, described
Form interference fit (the post core of i.e. three cowlings and three-way connection between the blind hole outer wall of three cowlings and the inner chamber of described three-way connection
Inner chamber coordinate closely, can reach tight sealing effectiveness, and threaded realize locking function).
It will be apparent that the threeway cap assembly that the utility model embodiment provides have employed the design of interference fit, it assembles knot
Structure closely reliable, good seal performance (leakage can be prevented) etc. many technical advantages.
Brief description
In order to be illustrated more clearly that the utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the accompanying drawing of required use is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawing can also be obtained according to these accompanying drawings.
The assembling sectional structure schematic diagram of the threeway cap assembly that Fig. 1 provides for the utility model embodiment；
Three cowling perspective view in the threeway cap assembly that Fig. 2 provides for the utility model embodiment；
Three-way connection perspective view in the threeway cap assembly that Fig. 3 provides for the utility model embodiment；
Three-way connection front view structure schematic diagram in the threeway cap assembly that Fig. 4 provides for the utility model embodiment；
Three-way connection sectional structure schematic diagram in the threeway cap assembly that Fig. 5 provides for the utility model embodiment；
Reference:
Three cowlings 1；
Three-way connection 2；First joint 21；Second joint 22；3rd joint 23；
Cross bar-shaped trough 3；
Shrinkproof pit hole 4；
Gap 5.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of not making creative work, broadly falls into this practicality
Novel protected scope.
In of the present utility model description, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", orientation or the position relationship of the instruction such as " level ", " interior ", " outward " is based on orientation shown in the drawings or position relationship, is only
Describe for the ease of describing the utility model and simplification, rather than device or the element of instruction or hint indication must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicate or hint relative importance.
In of the present utility model description, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixing connect, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning in the utility model for the language.
Below by specific embodiment and combine accompanying drawing the utility model is described in further detail.
See Fig. 1, a kind of threeway cap assembly that the utility model embodiment provides, including three cowlings 1 (see also Fig. 2) and
Three-way connection 2 (see also Fig. 3, Fig. 4 and Fig. 5)；
The top being positioned at described three cowlings 1 is provided with cross bar-shaped trough 3；The described cross-bar being positioned on described three cowlings 1
The bottom of shape groove 3 is additionally provided with shrinkproof pit hole 4；And described shrinkproof pit hole 4 is blind hole；The blind hole outer wall of described shrinkproof pit hole 4 with
There is gap 5 between the inwall of described three cowlings 1, described gap 5 is for embedding the tube wall of three-way connection 2；
It is provided with external screw thread outside the tube wall of described three-way connection 2；It is provided with internal thread on the inwall of described three cowlings 1；
External screw thread on described three-way connection 2 is half-thread；On the internal thread of described three cowlings 1 and the tube wall of described three-way connection 2
External screw thread is connected；
The blind hole outer wall of described shrinkproof pit hole 4 is truncated conical shape, and the inner chamber in the tube wall of described three-way connection 2 is cone
Shape, and the blind hole outer shape of described shrinkproof pit hole 4 adapts with the cavity shape in the tube wall of described three-way connection 2；Described
Form interference fit between the blind hole outer wall of three cowlings 1 and the inner chamber of described three-way connection 2.
The primary structure analyzing three cowlings understands: the bottom of the described cross bar-shaped trough being positioned on described three cowlings also sets up
There is shrinkproof pit hole (one of improvement i.e. of the present utility model)；And described shrinkproof pit hole is blind hole；The blind hole of described shrinkproof pit hole
There is gap (one of improvement i.e. of the present utility model) between the inwall of outer wall and described three cowlings, described gap is used for embedding
The tube wall of three-way connection；It is provided with external screw thread outside the tube wall of described three-way connection；In being provided with on the inwall of described three cowlings
Screw thread；The internal thread of described three cowlings and the external screw thread on the tube wall of described three-way connection are connected；
The blind hole outer wall of described shrinkproof pit hole is truncated conical shape, and the inner chamber in the tube wall of described three-way connection is cone
Cavity shape in shape, and the tube wall of the blind hole outer shape of described shrinkproof pit hole and described three-way connection adapts (i.e. this reality
With one of novel improvement)；Form interference fit between the blind hole outer wall of described three cowlings and the inner chamber of described three-way connection
(one of improvement i.e. of the present utility model).
In traditional threeway cap assembly structure, owing to, during producing and using, full thread is difficult to align, and repeatedly revolves
Could alignment angle carry out locked after Zhuaning.Half-thread in the utility model structure can align when any angle, directly
Rotation carries out locked, and can reach the locking force of full thread, improves production efficiency, and is easy to use that (i.e. tradition three connects
Head uses full thread: i.e. bar portion is all provided with screw thread from top to bottom；Half-thread i.e. threaded portion is not from top to bottom, only half
Or it is a greater part of；Fig. 3 all do not illustrates this half-thread structure).Meanwhile, the blind hole outer wall of described three cowlings and described threeway
(the post core of i.e. three cowlings and the inner chamber of three-way connection coordinate closely, can reach tight to form interference fit between the inner chamber of joint
Sealing effectiveness, and threaded realize locking function).
Overcome tradition threeway cap assembly attachment structure by the threeway cap assembly that the structure of above-mentioned innovation designs not
The correlation technique defects such as stable, poor air-tightness, fluid tight difference；Meanwhile, the threeway cap assembly tool that the utility model embodiment provides
Being suitable for scope wide, it is reliable and stable with the attachment structure of three-way connection, security is higher, good seal performance (can anti-leak-stopping
Liquid) etc. many technical advantages.
The above-mentioned threeway cap assembly that the utility model embodiment provides, the maximum tightness that ensure that three-way connection limiting
And sealing property, it is to avoid it is polluted by the bacterium in environment, germ etc., it is ensured that medical and health conditions and vein note
The safety and reliability penetrated.
Below one is done to the concrete structure and concrete technique effect of the threeway cap assembly that the utility model embodiment provides
Lower detailed description:
Preferably, as a kind of embodiment；The bottom of described shrinkproof pit hole 4 protrudes from the bottom of described three cowlings 1
Outer.
It should be noted that the effect of above-mentioned shrinkproof pit hole mainly has three aspects:
On the one hand, this shrinkproof pit hole is provided in the cavity within three cowlings, material when it is advantageous to prevent from being molded
Shrink；
On the other hand, good sealing effect, between existing between the blind hole outer wall of i.e. shrinkproof pit hole and the inwall of described three cowlings
Gap, but this gap may be used for the tube wall of embedded three-way connection；So, the tube wall of three-way connection has just been sandwiched in shrinkproof
Between the blind hole outer wall of pit hole and the inwall of three cowlings, it can form and form better seal effect and tight to three-way connection
Gu effect；
Another further aspect, shrinkproof pit hole is also beneficial to semi-automation positioning；The bottom of i.e. shrinkproof pit hole protrudes from the end of three cowlings
Outer, portion, so when operating personnel operate threeway cap assembly, needs close to three-way connection for the bottom of threeway cap assembly, by
Highlight in the bottom of its shrinkproof pit hole, so the bottom of its shrinkproof pit hole first extend into the inside of joint, due to shrinkproof pit hole
Volume is less, and therefore it is more conducive to stretch into inside joint, stretches into offer for follow-up whole threeway cap assembly and guides, and then realizes
The function being automatically positioned.The threeway cap assembly that above-mentioned the utility model embodiment provides, through scientific research personnel's research and design for many years,
Through tens of improvement design, also pass through simultaneously and repeatedly require with reference to mould process design, have devised and there is above-mentioned many skills
The threeway cap assembly of art feature；Simultaneously above-mentioned threeway cap assembly also have passed through tens of tests at clinicing aspect, has obtained scene
The concern of user and industry personage and accreditation, therefore it will be widely used.
Preferably, as a kind of embodiment；The blind hole outer wall of described shrinkproof pit hole 4 and the inwall of described three cowlings 1
Between gap in be additionally provided with annular seal circle (not shown).
Preferably, as a kind of embodiment；The outside dimension of described annular seal circle and the width in described gap
Size adapts.
Preferably, as a kind of embodiment；Described annular seal circle is medical silica-gel sealing ring or medical grade rubber
Sealing ring.
It should be noted that；Medical silica-gel sealing ring is a kind of high temperature resistant silica gel sealing ring of high-environmental, be frequently used for hospital,
The mechanisms such as medical treatment, scientific research institution, the high medical sealing ring of this sanitary grade uses import high quality silicon collagen-based materials；This silica gel sealing
Circle resilience is strong, and good airproof performance, Long-Time Service does not turn yellow colour-fast, does not affect using effect.
Meanwhile, above-mentioned medical silica-gel sealing ring also has technical performance superior as follows: the 1st, sanitary grade is high, ring
Protect, efficiently tasteless, can high-temperature sterilization and autoclaving；2nd, tensile strength is high, and high tear, low-shrinkage, resilience is good；3. long
Time use also will not deform, and resistance to biodeterioration can be strong；Therefore above-mentioned silica gel sealing ring is particularly adapted to the utility model in fact
Executing the sealing ring material on the woven hose protective cap that example provides needs.
Preferably, as a kind of embodiment；Described three cowlings 1 are specially medical grade ABS injection structure part.
It should be noted that acrylonitrile-butadiene-styrene copolymer, English name: Acrylonitrile
Butadiene Styrene copolymers, is called for short ABS plastic.ABS is a kind of intensity height, good toughness, easily processed into type
Thermoplastics type's Polymer Materials ' Structure.ABS plastic has good mouldability, and the product surface processing is bright and clean, it is easy to dyeing and
Plating.
Preferably, as a kind of embodiment；Described three-way connection 2 is specially medical grade PVC injection structure part.
It should be noted that medical plastic industry with its high added value, high speedup and has wide market potential and standby
Attract attention, by using novel plastic material, so that medicine equipment is safer, more environmentally friendly.The threeway of medical grade PVC,
It has resistance to chemical corrosion, has very strong resistance to oxidant, reducing agent and strong acid, and wear-resisting, it is easy to produce,
Use safe, with low cost.With regard to medical grade PVC material, this kind of material with have good phase between intravenous fluid and blood
Capacitive, thus be widely used, such as various flexible pipe for medical purpose, blood storage device, dialysis annex, surgical glove, medical treatment bar
Part and man-made organ etc..
Preferably, as a kind of embodiment；Referring specifically to Fig. 5, described three-way connection 2 includes the first joint 21 and
Two joints 22 and the 3rd joint 23；Described first joint 21 connects in flat with the second joint 22, and described 3rd joint 23
Connect with the junction of described first joint 21 and described second joint 22.
Preferably, as a kind of embodiment；Described first joint 21 is bonding with the pipeline that external diameter is 3.9mm to be coordinated；
And described second joint 22 is bonding with the pipeline that external diameter is 3.9mm coordinates.
Preferably, as a kind of embodiment；Described 3rd joint 23 on described three-way connection 2 and described three cowlings
The threaded engagement of 1.
It should be noted that in concrete annexation: three cowlings of described 3rd joint on described three-way connection
Threaded engagement.Coordinate as it is shown in figure 5, described first joint 21 is bonding with the pipeline that external diameter is 3.9mm；And described second joint 22
Cooperation (the size of size with it the bonding pipeline of i.e. first joint 21 and second joint 22 bonding with the pipeline that external diameter is 3.9mm
Adapt cooperation).
Preferably, as a kind of embodiment；Described 3rd joint 23 on described three-way connection 2 and described three cowlings
The threaded engagement of 1.I.e. the 3rd joint 23 size with described three cowling 1 dimensional fits；The external screw thread of the 3rd joint 23 in Fig. 5
(i.e. thread) coordinates with three cowlings, need to guarantee to screw, not fall off, air tight；
It will be apparent that the threeway cap assembly that the utility model embodiment provides mainly has a technical advantage of following aspect:
1st, the threeway cap assembly that the utility model embodiment provides, have employed the design of half-thread, and it is when any angle
Can align, directly rotation carries out locked, and can reach the locking force of full thread, improves production efficiency, and is easy to make
With.
2nd, threeway cap assembly, the blind hole outer wall of its three cowling and the inner chamber of three-way connection that the utility model embodiment provides
Between form interference fit (inner chamber of the post core of i.e. three cowlings and three-way connection coordinates closely), it can reach tight sealing effect
Really, and threaded realize locking function).
3rd, the threeway cap assembly that the utility model embodiment provides, it is wide that it has the scope of being suitable for, itself and three-way connection
Attachment structure is reliable and stable, security is higher, the many technical advantages of good seal performance (can prevent leakage) etc..The utility model
The above-mentioned threeway cap assembly that embodiment provides, the maximum tightness that ensure that three-way connection limiting and sealing property, it is to avoid
It is polluted by the bacterium in environment, germ etc., it is ensured that medical and health conditions and intravenous security and reliable
Property.
In sum, the threeway cap assembly that the utility model embodiment provides, has all many technical advantages, therefore
It will bring good social benefit, market prospects and economic benefit.
Last it is noted that various embodiments above is only in order to illustrating the technical solution of the utility model, rather than it is limited
System；Although being described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art should
Understand: it still can the technical scheme described in foregoing embodiments be modified, or to wherein some or all of
Technical characteristic carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of type each embodiment technical scheme.
Claims (10)
1. a threeway cap assembly, it is characterised in that include three cowlings and three-way connection；
The top being positioned at described three cowlings is provided with cross bar-shaped trough；
The bottom of the described cross bar-shaped trough being positioned on described three cowlings is additionally provided with shrinkproof pit hole；And described shrinkproof pit hole is blind
Hole；There is gap between the blind hole outer wall of described shrinkproof pit hole and the inwall of described three cowlings, described gap is used for embedding threeway
The tube wall of joint；It is provided with external screw thread outside the tube wall of described three-way connection；It is provided with internal thread on the inwall of described three cowlings；
External screw thread on the tube wall of described three-way connection is half-thread；On the internal thread of described three cowlings and the tube wall of described three-way connection
External screw thread be connected；
The blind hole outer wall of described shrinkproof pit hole is truncated conical shape, and the inner chamber in the tube wall of described three-way connection is cone shape, and
The blind hole outer shape of described shrinkproof pit hole and the cavity shape in the tube wall of described three-way connection adapt；Described three cowlings
Form interference fit between the inner chamber of blind hole outer wall and described three-way connection.
2. threeway cap assembly according to claim 1, it is characterised in that
The bottom of described shrinkproof pit hole protrudes from the outer, bottom of described three cowlings.
3. threeway cap assembly according to claim 1, it is characterised in that
It is additionally provided with annular seal circle in gap between the blind hole outer wall of described shrinkproof pit hole and the inwall of described three cowlings.
4. threeway cap assembly according to claim 3, it is characterised in that
The outside dimension of described annular seal circle and the width dimensions in described gap adapt.
5. threeway cap assembly according to claim 3, it is characterised in that
Described annular seal circle is medical silica-gel sealing ring or medical grade rubber sealing ring.
6. threeway cap assembly according to claim 1, it is characterised in that
Described three cowlings are specially medical grade ABS injection structure part.
7. threeway cap assembly according to claim 1, it is characterised in that
Described three-way connection is specially medical grade PVC injection structure part.
8. threeway cap assembly according to claim 1, it is characterised in that
Described three-way connection includes the first joint and the second joint and the 3rd joint；Described first joint and the second fittings in
Flat, and described 3rd joint connects with the junction of described first joint and described second joint.
9. threeway cap assembly according to claim 8, it is characterised in that
Described first joint is bonding with the pipeline that external diameter is 3.9mm to be coordinated；And described second joint and the pipeline that external diameter is 3.9mm
Bonding coordinates.
10. threeway cap assembly according to claim 9, it is characterised in that
Described 3rd joint on described three-way connection and the threaded engagement of described three cowlings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620599011.0U CN205678325U (en) | 2016-06-17 | 2016-06-17 | A kind of threeway cap assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620599011.0U CN205678325U (en) | 2016-06-17 | 2016-06-17 | A kind of threeway cap assembly |
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| Publication Number | Publication Date |
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| CN205678325U true CN205678325U (en) | 2016-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931270A (en) * | 2017-03-21 | 2017-07-07 | 广东联塑科技实业有限公司 | A kind of pipe plug nut structure |
-
2016
- 2016-06-17 CN CN201620599011.0U patent/CN205678325U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931270A (en) * | 2017-03-21 | 2017-07-07 | 广东联塑科技实业有限公司 | A kind of pipe plug nut structure |
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