CN106677435A - Self-locking clamping pipe type steel bar direct insertion connector - Google Patents
Self-locking clamping pipe type steel bar direct insertion connector Download PDFInfo
- Publication number
- CN106677435A CN106677435A CN201710112142.0A CN201710112142A CN106677435A CN 106677435 A CN106677435 A CN 106677435A CN 201710112142 A CN201710112142 A CN 201710112142A CN 106677435 A CN106677435 A CN 106677435A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- reinforcing bar
- self
- connection end
- pipe type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
Abstract
The invention provides a self-locking clamping pipe type steel bar direct insertion connector. The self-locking clamping pipe type steel bar direct insertion connector comprises a first sleeve, a second sleeve and a clamping pipe, wherein the first sleeve is provided with a first connecting end and a second connecting end connected with a first steel bar; the second sleeve is provided with a first open end and a third connecting end connected with a second steel bar; a first insertion hole is formed in the first open end; a limiting cavity communicating with the first insertion hole is formed in the second sleeve; the clamping pipe contains the limiting cavity and is provided with a penetrating locking cavity matched with the first connecting end; the locking cavity communicates with the first insertion hole; and the first connecting end is inserted in the first insertion hole and the locking cavity so that the first connecting end can be locked and fixed. According to the self-locking clamping pipe type steel bar direct insertion connector, the problem that traditional steel bar connecting sleeves or connectors are low in construction efficiency during steel bar butt joint connecting especially under the situation that the butt joint working surface is narrow is solved.
Description
Technical field
The present invention relates to a kind of bar connecting instrument, and in particular to a kind of self-locking clamp pipe type reinforcing bar straight-insert joint.
Background technology
In structure of reinforced concrete, the method for attachment of reinforcing bar has colligation, welding and is mechanically connected.And build at present
In building construction, reinforced bar mechanical connector is the most commonly used because of its preferably connection effect.Reinforced bar mechanical connector is not being destroyed
In the case of the fold resistance of reinforcing bar, the bonding strength of reinforcing bar greatly improved, it is ensured that the construction quality of reinforced concrete structure.
Reinforced bar mechanical connector normal method has compression sleeve and thread connecting joint.Extrusion socket joint needs crowded
Pressure equipment, and require that there is certain working place.Nipple is a joint for fittings with internal threads, at the end of reinforcing bar to be docked
Portion offers the external screw thread matched with above-mentioned female thread.When steel reinforcement abutting joints are constructed, when being connected with screw thread steel because of nipple,
Swivel or reinforcing bar are needed, tightening tool and working place is now needed.And in steel reinforcement abutting joints construction, by reinforcing bar linearity and
Accuracy of screw machining affects, and needs to spend larger energy when reinforcing bar is with reinforcing steel bar connecting sleeve tube, increased the construction of steel reinforcement abutting joints
When difficulty, especially reinforced mesh docking or the docking of bar construction, number of steel bars to be docked is numerous, and mating operation face is narrow
Little, during using above-mentioned existing joint connection reinforcing bar, difficulty of construction is big and wastes time and energy, low construction efficiency.
The content of the invention
To overcome the defect existing for prior art, a kind of self-locking clamp pipe type reinforcing bar straight-insert joint is now provided, to solve to pass
The reinforcing steel bar connecting sleeve tube or joint of system steel reinforcement abutting joints construction in, the problem of low construction efficiency.
For achieving the above object, there is provided a kind of self-locking clamp pipe type reinforcing bar straight-insert joint, including：
A kind of self-locking clamp pipe type reinforcing bar straight-insert joint, it is characterised in that include：
First sleeve, with the first connection end and the second connection end for the first bar connecting；
Second sleeve, with the first opening and the 3rd connection end for the second bar connecting, the first opening shape
Into there is the first jack, the second sleeve is formed with the spacing cavity communicated with first jack；And
The card pipe of the spacing cavity is placed in, the sealed cavity with the insertion locked together with first connection end,
The sealed cavity connects first jack, and first connection end is inserted in first jack and the sealed cavity
With first connection end that locks.
Further, annular barb is formed with first connection end, the cavity wall of the sealed cavity is formed with and institute
State the annular barb groove that annular barb matches.
Further, be formed with helical form agnail on first connection end, the cavity wall of the sealed cavity be formed with
The helical form agnail groove that the helical form agnail matches.
Further, pyramidal projections are formed with first connection end, the cavity wall of the sealed cavity is formed with and institute
State the conical indentation that pyramidal projections match.
Further, first connection end includes multiple truncated cone-shaped projections, and multiple truncated cone-shaped projections are along described the
The superposition axially outward of one sleeve forms first connection end, and the cavity wall of the sealed cavity is formed with and multiple round platforms
The step-like recess of shape protrusions.
Further, the side wall of the card pipe is in axial direction formed with the expansion joint of insertion.
Further, the expansion joint is zigzag.
Further, second opening is provided with lid, and the lid offers first jack, the lid with
The second sleeve surrounds to form the spacing cavity.
Further, second opening is provided with correction sleeve, close described second opening of the correction sleeve
One end form first jack, the correction sleeve is formed with for guiding first connection end to enter the sealed sky
The guide channel in chamber, the guide channel connects first jack, and first sleeve is arranged in the guide channel.
Further, first sleeve is provided with the first female thread, and first reinforcing bar is provided with and first female thread
The first external screw thread for matching；3rd connection end is provided with the second female thread, and second reinforcing bar is provided with and described second
The second external screw thread that female thread matches.
The beneficial effects of the present invention is, self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention, can by a pair of straight-insert joints
With quickly by a pair with docking bar connectings together.First sleeve can in advance be fixedly connected on the end of the first reinforcing bar
Portion, second sleeve component can in advance be fixedly connected on the end of the second reinforcing bar, when the first reinforcing bar and the second steel reinforcement abutting joints are constructed
When, it is only necessary to the first connection end of the first sleeve is inserted by the first jack and can complete in sealed cavity the first reinforcing bar and the
The docking construction of two reinforcing bars.Steel reinforcement abutting joints construction, efficiency of construction are carried out using self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention
Height, especially in the case where mating operation face is more narrow, steel reinforcement abutting joints construction seems particularly efficient and convenient, efficient.
Description of the drawings
Fig. 1 is the schematic diagram of the first embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention.
Fig. 2 is the decomposing schematic representation of the first embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention.
Fig. 3 is the exploded pictorial of the second sleeve component of the first embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention
Figure.
Fig. 4 is that the first sleeve of the first embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention is used cooperatively with card pipe
State diagram.
Fig. 5 is the use state figure of the first embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention.
Fig. 6 is the schematic diagram of the second embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention.
Fig. 7 for the second embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention decomposing schematic representation.
Fig. 8 is the use state figure of the second embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention.
Specific embodiment
Embodiments of the present invention are illustrated below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands easily other advantages and effect of the present invention.The present invention can also pass through concrete realities different in addition
The mode of applying is carried out or applies, the every details in this specification can also based on different viewpoints with application, without departing from
Various modifications and changes are carried out under the spirit of the present invention.
Fig. 1 is the schematic diagram of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention, and Fig. 2 is that self-locking clamp pipe type reinforcing bar of the present invention is straight
The decomposing schematic representation of connection-peg, Fig. 3 is the exploded pictorial of the second sleeve component of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention
Figure, Fig. 4 is that the first sleeve of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention and card pipe use cooperatively state diagram, and Fig. 5 is this
The use state figure of bright self-locking clamp pipe type reinforcing bar straight-insert joint.
First embodiment
Referring to figs. 1 to shown in Fig. 5, the invention provides a kind of self-locking clamp pipe type reinforcing bar straight-insert joint, including：First sleeve
1st, second sleeve 2 and card pipe 3.First sleeve 1 has the first connection end 12 and the second connection end 11 for the connection of the first reinforcing bar 4.
Second sleeve 2 has the first opening and the 3rd connection end for the connection of the second reinforcing bar 5, and the first opening is formed with first and inserts
Hole, second sleeve 2 is formed with the spacing cavity 21 communicated with the first jack.Card pipe 3 is placed in spacing cavity 21.Card pipe 3 has
There is the sealed cavity 31 of the insertion locked together with the first connection end 12, sealed cavity 31 connects the first jack, the first connection end 12
It is inserted in the first jack and sealed cavity 31 with first connection end 12 that locks.Card pipe 3 and first can be between connection end 12
Threaded connection, or squash type connection.
Self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention, can be quickly by a pair with docking by a pair of straight-insert joints
Bar connecting is together.First sleeve can in advance be fixedly connected on the end of the first reinforcing bar, and second sleeve component can be advance
The end of the second reinforcing bar is fixedly connected on, when the first reinforcing bar and the second steel reinforcement abutting joints are constructed, it is only necessary to by the of the first sleeve
The docking construction that the first reinforcing bar and the second reinforcing bar can be completed in sealed cavity is inserted by the first jack in one connection end.Using this
Carrying out steel reinforcement abutting joints construction, efficiency of construction is high, especially in mating operation face more for invention self-locking clamp pipe type reinforcing bar straight-insert joint
In the case of narrow, steel reinforcement abutting joints construction seems particularly efficient and convenient, efficient.
Specifically, the first sleeve 1 includes the first connection end 12 and the second connection end 11.On the medial wall of the second connection end 11
It is formed with the first female thread.The end of the first reinforcing bar 4 is formed with the first external screw thread matched with the first female thread.First reinforcing bar
4 are threadedly coupled with the second connection end 11.
Annular barb is formed with first connection end, accordingly, the cavity wall of sealed cavity 31 is formed with and annular barb phase
The annular barb groove of matching.
In certain embodiments, helical form agnail is formed with the first connection end, the cavity wall of sealed cavity is formed with and spiral shell
The helical form agnail groove that rotation shape agnail matches.
In certain embodiments, be formed with pyramidal projections on the first connection end 12, the cavity wall of sealed cavity 31 be formed with
The conical indentation that pyramidal projections match.
Used as a kind of preferred embodiment, the first connection end 12 includes multiple truncated cone-shaped projections, multiple truncated cone-shaped projection edges
The superposition axially outward of the first sleeve 1 forms the first connection end 12, and accordingly, 31 cavity walls of sealed cavity are formed with and multiple circles
The step-like recess of platform shape protrusions.First connection end 12 is formed with smooth arc top surface, in order to the first connection end
12 alignment enter sealed cavity 31 from the first jack.
The quantity that specific truncated cone-shaped projection is arranged can determine according to docking reinforcing steel bar bear situation.
3rd connection end of second sleeve 2 is formed with the second female thread, the end of the second reinforcing bar 5 be formed with second in spiral shell
The second external screw thread that stricture of vagina matches, the second reinforcing bar 5 is threadedly coupled the 3rd connection end of second sleeve 2.
Second sleeve 2 has the spacing cavity 21 with the mating shapes of the first connection end 12, the second opening connection limit
Position cavity 21.Lid 6 is provided with the second opening of second sleeve 2, second opening and lid 6 of second sleeve 2 enclose shape
Into spacing cavity 21.The first jack is offered on lid 6.Second opening of second sleeve 2 is threadedly coupled with lid 6.
Card pipe 3 is placed in spacing cavity 21, and the volume of spacing cavity 21 is more than the volume of card pipe 3.Spacing cavity 21 is led
If for preventing card pipe 3 from slipping from the second opening of second sleeve 2.Card pipe 3 have insertion with the first connection end 12
Mating shapes sealed cavity 31, the first connection end 12 is plugged in sealed cavity 31, because of the annular of the first connection end 12
Agnail is mutually locked with sealed cavity 31 and is connected so that the first connection end 12 of insertion is locked in spacing cavity 21 and can not move back
Go out.
The first connection end 12 is inserted in card pipe 3 for convenience, one is formed with along its axial direction in the side wall of card pipe 3
The expansion joint 32 of insertion, when the sealed cavity 31 of card pipe 3 is inserted in the first connection end 12, the side wall of card pipe 3 is because the first connection
Hold 12 impulsive force or the extruding of extruding force and the occasional passage that first connection end of confession 12 enters strutted and formed to both sides,
As shown in Figure 4.Now, softened one wider expansion joint 32 on the side wall of card pipe 3.For this purpose, the volume of spacing cavity 21 should
More than the volume of card pipe 3, and the card pipe 3 strutted by the first connection end 12 should be able to be housed.
When the first connection end 12 is inserted in place, the first connection end 12 is mutually locked with spacing cavity 21, as shown in figure 1,
Now, the side wall of card pipe 3 is again because the reduction for shoring power of the side wall of the card pipe 3 of the first connection end 12 pairs or disappearing and being reset to one
The narrower expansion joint 32 of bar.
Used as a kind of preferably embodiment, expansion joint 32 can be zigzag, as jagged expansion joint, be easy to card
The side wall of pipe 3 is extruded when strutting and resets, positions, and prevents the axial direction of card pipe 3 twisted.In the present embodiment, expansion joint 32 is square
Shape zigzag.Expansion joint 32 can also be triangular sawtooth shape, corrugated zigzag, trapezoidal dentation etc..
Second embodiment
Fig. 6 is the schematic diagram of the second embodiment of self-locking clamp pipe type reinforcing bar straight-insert joint of the present invention, Fig. 7 for the present invention from
The decomposing schematic representation of the second embodiment of pintle hook lock tubular type reinforcing bar straight-insert joint, Fig. 8 connects for self-locking clamp pipe type reinforcing bar straight cutting of the present invention
The use state figure of the second embodiment of head.
Referring to shown in Fig. 6 to Fig. 8, second embodiment is to be replaced into lid and entangle with the difference part of first embodiment
Inclined sleeve.
Correction sleeve 6 ' is threadedly connected to 2 ' the second opening.The first end near the second opening of correction sleeve 6 '
The first jack is formed, sleeve 6 ' of rectifying a deviation is formed with for guiding the first connection end 12 ' into the guide channel of sealed cavity 31 '
61 ', guide channel 61 ' connects the first jack, and the first sleeve 1 ' is arranged in guide channel 61 '.
Correction sleeve 6 ' is for trumpet-shaped sleeve and with trumpet-shaped guide channel 61 '.The first end of guide channel 61 '
Near second sleeve 2 ', the second end of guide channel 61 ' is away from second sleeve 2 '.The aperture of the first end of guide channel 31 ' is less than
The aperture at the second end of guide channel 61 '.Specifically, the first end of correction sleeve 6 ' is formed with the 3rd external screw thread, second sleeve
2 ' the second opening is formed with the 3rd female thread matched with the 3rd external screw thread.
It should be noted that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to coordinate
Content disclosed in bright book, so that those skilled in the art understands and reads, is not limited to enforceable limit of the invention
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
Under affecting effect that can be generated of the invention and the purpose to be reached, all should still fall obtained in disclosed technology contents
In the range of covering.Meanwhile, in this specification it is cited as " on ", D score, "left", "right", " centre " and " one " etc.
Term, is merely convenient to understanding for narration, and is not used to limit enforceable scope of the invention, the change of its relativeness or tune
It is whole, under without essence change technology contents, when being also considered as enforceable category of the invention.
The present invention is described in detail above in association with accompanying drawing embodiment, those skilled in the art can be according to upper
State and bright many variations example is made to the present invention.Thus, some of embodiment details should not constitute limitation of the invention, this
Invention is by the scope defined using appended claims as protection domain.
Claims (10)
1. a kind of self-locking clamp pipe type reinforcing bar straight-insert joint, it is characterised in that include：
First sleeve, with the first connection end and the second connection end for the first bar connecting；
Second sleeve, with the first opening and the 3rd connection end for the second bar connecting, first opening is formed with
First jack, the second sleeve is formed with the spacing cavity communicated with first jack；And
The card pipe of the spacing cavity is placed in, the sealed cavity with the insertion locked together with first connection end is described
Sealed cavity connects first jack, and first connection end is inserted in first jack and the sealed cavity to lock
Gu first connection end.
2. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 1, it is characterised in that shape on first connection end
Into there is annular barb, the cavity wall of the sealed cavity is formed with the annular barb groove matched with the annular barb.
3. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 1, it is characterised in that shape on first connection end
Into there is helical form agnail, the cavity wall of the sealed cavity is formed with the helical form agnail groove matched with the helical form agnail.
4. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 1, it is characterised in that shape on first connection end
The conical indentation matched with the pyramidal projections is formed with into the cavity wall for having pyramidal projections, the sealed cavity.
5. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 1, it is characterised in that first connection end includes
Multiple truncated cone-shaped projections, multiple truncated cone-shaped projections form first connection along the superposition axially outward of first sleeve
End, the cavity wall of the sealed cavity is formed with the step-like recess with multiple truncated cone-shaped protrusions.
6. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 1, it is characterised in that the side wall of the card pipe is along axle
The expansion joint of insertion is formed with to direction.
7. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 6, it is characterised in that the expansion joint is sawtooth
Shape.
8. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 1, it is characterised in that second opening is provided with
Lid, the lid offers first jack, and the lid surrounds to form the spacing cavity with the second sleeve.
9. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 1, it is characterised in that second opening is provided with
Correction sleeve, one end of close described second opening of the correction sleeve forms first jack, the correction sleeve
It is formed with the guide channel for guiding first connection end to enter the sealed cavity, guide channel connection described the
One jack, first sleeve is arranged in the guide channel.
10. self-locking clamp pipe type reinforcing bar straight-insert joint according to claim 1, it is characterised in that first sleeve is provided with
First female thread, first reinforcing bar is provided with the first external screw thread matched with first female thread；3rd connection end
Be provided with the second female thread, second reinforcing bar is provided with the second external screw thread matched with second female thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710112142.0A CN106677435A (en) | 2017-02-28 | 2017-02-28 | Self-locking clamping pipe type steel bar direct insertion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710112142.0A CN106677435A (en) | 2017-02-28 | 2017-02-28 | Self-locking clamping pipe type steel bar direct insertion connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106677435A true CN106677435A (en) | 2017-05-17 |
Family
ID=58862090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710112142.0A Pending CN106677435A (en) | 2017-02-28 | 2017-02-28 | Self-locking clamping pipe type steel bar direct insertion connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677435A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321847A (en) * | 2020-01-02 | 2020-06-23 | 中国一冶集团有限公司 | Combined connecting mechanism |
| CN111350621A (en) * | 2020-01-15 | 2020-06-30 | 重庆科马工贸有限公司 | General gasoline engine with novel air filter |
| CN112049327A (en) * | 2020-08-13 | 2020-12-08 | 浙江省建筑科学设计研究院有限公司 | Semi-grouting sleeve assembly and mounting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849356A (en) * | 1994-08-09 | 1996-02-20 | Nippon Splice Sleeve Kk | Sleeve joint plug |
| KR20010037620A (en) * | 1999-10-19 | 2001-05-15 | 이화찬 | The screw manufacturing method and device of a reinforcing rod |
| KR20060059763A (en) * | 2004-11-29 | 2006-06-02 | 티에스스틸산업 주식회사 | Steel reinforcing connection sleeve and precast concrete member using the same |
| KR20070054417A (en) * | 2005-11-23 | 2007-05-29 | 김용근 | Threaded sleeve for coupling the threaded deformed reinforcing bars |
| CN102261168A (en) * | 2011-05-12 | 2011-11-30 | 董建伟 | Slidable prestressed rib connector |
| CN103835441A (en) * | 2014-01-23 | 2014-06-04 | 王睿敏 | Rebar mechanical joint element used for precast reinforced concrete member and installing method thereof |
| CN105518235A (en) * | 2013-09-09 | 2016-04-20 | 金龙根 | Socket fastening-type reinforcing bar connector using binding end member |
| CN205369722U (en) * | 2016-02-02 | 2016-07-06 | 烟台大世阻尼部件有限公司 | Mantle fiber steel bar connection sleeve is exempted from to formula of cuting straightly |
| CN206581497U (en) * | 2017-02-28 | 2017-10-24 | 中国建筑第八工程局有限公司 | Self-locking clamp pipe type reinforcing bar straight-insert joint |
-
2017
- 2017-02-28 CN CN201710112142.0A patent/CN106677435A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849356A (en) * | 1994-08-09 | 1996-02-20 | Nippon Splice Sleeve Kk | Sleeve joint plug |
| KR20010037620A (en) * | 1999-10-19 | 2001-05-15 | 이화찬 | The screw manufacturing method and device of a reinforcing rod |
| KR20060059763A (en) * | 2004-11-29 | 2006-06-02 | 티에스스틸산업 주식회사 | Steel reinforcing connection sleeve and precast concrete member using the same |
| KR20070054417A (en) * | 2005-11-23 | 2007-05-29 | 김용근 | Threaded sleeve for coupling the threaded deformed reinforcing bars |
| CN102261168A (en) * | 2011-05-12 | 2011-11-30 | 董建伟 | Slidable prestressed rib connector |
| CN105518235A (en) * | 2013-09-09 | 2016-04-20 | 金龙根 | Socket fastening-type reinforcing bar connector using binding end member |
| CN103835441A (en) * | 2014-01-23 | 2014-06-04 | 王睿敏 | Rebar mechanical joint element used for precast reinforced concrete member and installing method thereof |
| CN205369722U (en) * | 2016-02-02 | 2016-07-06 | 烟台大世阻尼部件有限公司 | Mantle fiber steel bar connection sleeve is exempted from to formula of cuting straightly |
| CN206581497U (en) * | 2017-02-28 | 2017-10-24 | 中国建筑第八工程局有限公司 | Self-locking clamp pipe type reinforcing bar straight-insert joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321847A (en) * | 2020-01-02 | 2020-06-23 | 中国一冶集团有限公司 | Combined connecting mechanism |
| CN111350621A (en) * | 2020-01-15 | 2020-06-30 | 重庆科马工贸有限公司 | General gasoline engine with novel air filter |
| CN112049327A (en) * | 2020-08-13 | 2020-12-08 | 浙江省建筑科学设计研究院有限公司 | Semi-grouting sleeve assembly and mounting method thereof |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |