CN109469785A - A kind of splicing construction splicing pipe fitting - Google Patents
A kind of splicing construction splicing pipe fitting Download PDFInfo
- Publication number
- CN109469785A CN109469785A CN201811616204.2A CN201811616204A CN109469785A CN 109469785 A CN109469785 A CN 109469785A CN 201811616204 A CN201811616204 A CN 201811616204A CN 109469785 A CN109469785 A CN 109469785A
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- China
- Prior art keywords
- connecting tube
- pipe fitting
- tooth engaged
- limited post
- compatible
- 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
Links
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/03—Branch units, e.g. made in one piece, welded, riveted comprising junction pieces for four or more pipe members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention belongs to connector technical fields, refer in particular to a kind of splicing construction for splicing pipe fitting.The adjustable splicing pipe fitting includes the first connecting tube, the second connecting tube being connected in above the first connecting tube, fastener, first connecting tube is equipped with the first tooth engaged, second connecting tube is equipped with the second tooth engaged compatible with the first tooth engaged size, the first tooth engaged is mutually twisted with the second tooth engaged by fastener together with；It is connect in second connecting tube and sets a third connecting tube vertically upward, the third connecting tube is equipped with limited post or limiting slot, second connecting tube is equipped with the limiting slot of corresponding limited post or the limited post of corresponding limiting slot, the first connecting tube, the second connecting tube and third connecting tube are fixed by fastener, realize that it limits effect by the mounting means between the second connecting tube and third connecting tube, its structure is simple, easily manufactured, improves the stability of the junction.
Description
Technical field
The invention belongs to connector technical fields, refer in particular to a kind of splicing construction for splicing pipe fitting.
Background technique
The pipe fitting that can be spliced currently on the market is seen everywhere, and a kind of both adjustable angle also occurs
The pipe connections that can be spliced again mainly have binodal, elbow, threeway, four-way etc., especially for tee tube, work as threeway
Pipe is spliced into four-way pipe and compare on stability in use, common fixed form is mainly fixed by a bolt
It is poor, when the pressure that this multitube connector is born is bigger, especially easily shifts in pipeline junction, go down for a long time
Fixing bolt between two connecting tubes stress always causes to generate and shake and rotation, greatly reduces its stability.
Summary of the invention
A kind of the object of the present invention is to provide stability adjustable splicing pipe fitting good, easy to assembly, with long service life.
The object of the present invention is achieved like this: a kind of adjustable splicing pipe fitting, including the first connecting tube, is connected in
The second connecting tube above one connecting tube, fastener, first connecting tube are equipped with the first tooth engaged, second connecting tube
It is equipped with the second tooth engaged compatible with the first tooth engaged size, by fastener by the first tooth engaged and the second tooth engaged phase
Mutually it is interlocked；It is connect in second connecting tube and sets a third connecting tube vertically upward, the third connecting tube is equipped with
Limited post or limiting slot, second connecting tube are equipped with the limiting slot of corresponding limited post or the limited post of corresponding limiting slot, lead to
Fastener is crossed to fix the first connecting tube, the second connecting tube and third connecting tube.
Preferably, the section of the limited post is in polygon, and limiting slot is in polygonal slot compatible with the section of limited post.
Preferably, the polygon is hexagon, and polygonal slot is hex slot.
Preferably, first connecting tube includes the first round plate, and second connecting tube one end is installed with the second disk
Portion, the round disk of the first round plate are equipped with the first tooth engaged, and the round disk of second round plate is equipped with and first
Compatible second tooth engaged of tooth engaged size.
Preferably, first round plate two sides are concaved with an arc-shaped depression portion, are convexly equipped on second round plate
Arc compatible with the size of arc-shaped depression portion protrusion.
Preferably, first connecting tube, the second connecting tube, third connecting tube include pipe section, each of which pipe section is each
Offer a limit hole.
Preferably, a kind of splicing construction splicing pipe fitting, including Display Rack bar, Display Rack bar lower section are installed with one and limit hole
Compatible elastic component, the Display Rack bar are connected by elastic component and compatible connecting tube.
Preferably, the adjustable angle between first connecting tube and the second connecting tube is with the first connection tube axis line base
Standard, entire angle of regulation range are ± 90 °.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that
1. being equipped with use in being tightened on end for main connecting tube when tee tube, which is spliced into four-way pipe, to be fixed using hex bolts
Slot is formed in the hex bolts of limit, the end envisaged underneath that screws of the third connecting tube is adapted at hex bolts formation slot
Hex bolts fixed column, third connecting tube is limited by hex bolts fixed column so that will not be shaken between two pipes,
Using hex bolts fixed column can so as not to arbitrarily rotation, then by be inserted between hex bolts between two pipes formed it is solid
It is fixed, improve stability, even if by pressure that this connection type is born it is bigger will not make its bolt because always by
Power and be broken, playing the role of auxiliary keeps connecting tube stable state, and the limited post and limiting slot are designed to hexagonal
Screw thread greatly simplifies processing technology, reduces production difficulty, improves production efficiency.
2. annular tooth engaged is respectively equipped in the round disk of the first connecting tube and the second connecting tube integrated disc portions, first
The teeth of connecting tube and the second connecting tube design and manufacture it is all quite accurate, when their teeth are mutually twisted together, and logical
When crossing fastener and being fixed as one, which can bear sufficiently large cross force.
3. by the design of inner concave arc surface and arc protrusion so that the second connecting tube makes connecting pipe in adjustment rotation angle
It is more flexible when spending, while also defining the angle of its rotation, this construction improve the unstability of big angle rotary.
4. being installed in the mode in corresponding limiting slot by limited post, to realize restriction effect, structure is simple, manufacture
It is convenient, improve the stability of junction.
Detailed description of the invention
Fig. 1 is the assembling structure schematic diagram of pipe fitting of the present invention；
Fig. 2 is the first connecting tube and the second connecting tube assembling structure schematic diagram of the invention；
Fig. 3 is the cross-sectional view of Fig. 2；
Fig. 4 is the structural schematic diagram of the second connecting tube of the invention；
Fig. 5 is the cross-sectional view of four connector of splicing construction of the present invention；
Fig. 6 is the structure diagram of four connector of pipe fitting of the present invention；
Fig. 7 is the structure diagram of two connectors of the invention；
Fig. 8 is the structural schematic diagram of two connectors of the invention；
Fig. 9 is the structural schematic diagram of the splicing construction of present invention splicing pipe fitting.
In figure: the first connecting tube of 1-；The second connecting tube of 2-；3- third connecting tube；4- fastener；7- limited post；8- limit
Slot；9- limit hole；10- Display Rack bar；11- elastic component；13- pipe section；The second round plate of 14-；The first round plate of 15-；16- arc
Recess portion；17- arc protrusion；The first tooth engaged of 18-；The second tooth engaged of 19-.
Specific embodiment
The present invention is described further with specific embodiment below.
All pipe fittings or aluminum pipe that the present invention mentions are not admitted to technical characteristic, are Res fungibiles.
Embodiment one: as shown in figs 1-9, the present invention includes the first connecting tube 1 and the second connecting tube 2 and fastener 4, tightly
Firmware 4 is bolt, and composition components can reduce cost less, and structure is simply very clear, and installing and dismounting is all very square
Just.
First connecting tube 1 includes that two straight tubes and the first round plate 15 for connecting two straight tubes are integrally formed,
First connecting tube 1 is 90 ° of bend pipes；Second connecting tube, 2 left end is equipped with the second round plate 14, the circle of first round plate 15
Shape disk is equipped with the first tooth engaged 18, and the round disk of second round plate 14 is equipped with and 18 size phase of the first tooth engaged
Second tooth engaged 19 of adaptation, the tooth engaged of the first connecting tube 1 are interlocked and block with the tooth engaged of the second connecting tube 2 just
Tightly, threeway is formed；
It is connect in second connecting tube 2 and sets a third connecting tube 3 vertically upward, 3 lower end of the third connecting tube is equipped with
Limited post 7 or limiting slot 8,2 upper surface of the second connecting tube are equipped with the limiting slot 8 of corresponding limited post 7 or correspond to limiting slot 8
Limited post 7, it is by fastener 4 that first connecting tube 1, the second connecting tube 2 and third connecting tube 3 is fixed.
Mounting means between the second connecting tube 2 and third connecting tube 3 of above-mentioned expression is divided into two kinds:
1. as shown in Figure 1, the interior recess of 3 lower section of the third connecting tube is convexly equipped with limited post 7, second round plate 14
Upper end offers a limiting slot 8 compatible with 7 size of limited post, and then third connecting tube 3 is installed in pair by limited post 7
In the limiting slot 8 answered.
2. be not drawn into the accompanying drawings, this is the second connecting tube 2 and another connection type of third connecting tube 3, described the
Two round plates, 14 upper end is convexly equipped with limited post 7, the interior recess molding one and 8 size of limiting slot of 3 lower section of third connecting tube
Compatible limited post 7, then by installing the limiting slot 8 being arranged in below third connecting tube 3 in setting in the second connection
Limited post 7 on pipe 2.
Realize that it limits effect by above two mounting means, structure is simple, and it is easily manufactured, improve the connection
The stability at place.
Above two mounting means can be connected the first connecting tube 1, the second connecting tube 2 with third by fastener 4
Pipe 3 is fixed, forms four-way, and by changing the channel of the second connecting tube 2 and third connecting tube 3, the second connecting tube 2 and third are connected
Adapter tube 3 becomes two respectively and leads to adapter tube, can be spliced into six and leads to, and each inner wall of the pipe respectively offers one for passing through straight tube
Clamp button of the spring, which is fastened on, forms fixed limit hole 9 in connecting tube.
Preferably, the section of the limited post 7 is in polygon, and limiting slot 8 is in compatible with the section of limited post 7 polygonal
Slot.
Limited post 7 uses hexagonal hexagon, and limiting slot 8 uses hex slot, when tee tube is spliced into four-way pipe using hexagonal
When bolt is fixed, slot, the third connecting tube 3 are formed in the hex bolts being equipped on end for limiting that is tightened of main connecting tube
The end envisaged underneath that screws form the compatible hex bolts fixed column of slot at hex bolts, passing through hex bolts fixed column will
Third connecting tube 3 is limited so that will not be shaken between third connecting tube 3 and the second connecting tube 2, then by hex bolts it
Between be inserted between two pipes formed fix, even if by this connection type bear pressure it is bigger will not make its bolt because
Always stress and be broken, play the role of auxiliary keep connecting tube stable state, connect with engaging tooth and play same limit
Position effect, and the limited post and limiting slot are designed to hexagon, greatly simplifie processing technology, and it is difficult to reduce production
Degree, improves production efficiency.
In actual use, when needing that angle is adjusted to connecting pipe on the basis of the first connecting tube 1, rotation the
After angle between two connecting tubes 2 and determining first connecting tube 1 and the second connecting tube 2, it is mutually twisted their tooth engaged
First connecting tube 1 and the second connecting tube 2 are fixed as one together and by fastener 4, make the connecting pipe of the adjusting angle
Stability be greatly improved, it is ensured that the connection of the first connecting tube 1 and the second connecting tube 2 will not fall off.
Preferably, 15 two sides of the first round plate are concaved with an arc-shaped depression portion 16, on second round plate 14
It is convexly equipped with arc compatible with the size of arc-shaped depression portion 16 protrusion 17.
In actual use, as shown in Fig. 2, by the design of arc-shaped depression portion 16 and arc protrusion 17 so that the second connecting tube
2 is more flexible when adjustment rotates angle, while also defining the angle of its rotation, first connecting tube 1 and the second connection
For adjustable angle between pipe 2 with 1 axial line benchmark of the first connecting tube, entire angle of regulation range is ± 90 °, this construction improve
The unstability of big angle rotary, the arc-shaped depression portion 16 and the design of 17 shape of arc protrusion can also reinforce third connecting tube 3
It is installed in the limit effect in corresponding limiting slot 8 by limited post 7, while also improving stability.
Embodiment two: the present embodiment and embodiment one are almost the same, the difference lies in that as Figure 4-Figure 6, described three
The port of connecting tube is respectively used to pipe fitting compatible with its size and connect, and the material of this connecting pipe entirety is all made of aluminum,
So that its inner surface is bright and clean, self oxide layer is corrosion-resistant, pipeline is beautiful, succinct and easy for installation, and its inside pipe wall is than common
The thickness of pipe wall of connecting tube, overall weight are promoted, so that bearing to blow air over the wind-force come enough when for gate Display Rack, no
It can fall easily, first connecting tube 1, the second connecting tube 2, third connecting tube 3 include pipe section 13, each of which pipe section 13
Respectively offer a limit hole 9；The aluminum pipe is buckled equipped with push type column compatible with 9 size of limit hole, when aluminum pipe is inserted
Enter when arriving at ladder in the pipeline of connecting tube, is buckled by push type column and aluminum pipe is fastened in the pipeline of connecting tube.
Embodiment three: the present embodiment and embodiment two are almost the same, the difference lies in that first as described in Fig. 7-8 connects
1 knee of adapter tube is equipped with mounting cap 10, uses as duplex fitting, the first limited post 11 is convexly equipped with below mounting cap 10, the
The tooth engaged center circumferentially arranged in one connecting tube 1 offers the first limiting slot compatible with 11 size of the first limited post
12, top is additionally provided with a hexagonal fixed bolt, and mounting cap 10 is installed in the first limiting slot 12 by the first limited post 11, is made
Its mounting cap 10 is fixed on 1 knee of the first connecting tube, then is screwed in from top to bottom by fixed bolt, and make mounting cap 10 not
It can fall off easily, achieve the effect that dual fixation；Design mounting cap 10 has not only achieved the effect that protect tooth engaged, but also solves flat
When aesthetics when in use.
Example IV: the present embodiment and embodiment three are almost the same, the difference lies in that as described in Fig. 5 and Fig. 9, this hair
The splicing construction of bright splicing pipe fitting includes Display Rack bar 10, and one is installed with below the Display Rack bar 10 and is mutually fitted with 9 size of limit hole
The elastic component 11 matched, the elastic component 11 use cylindrical spring pin, including spring shank, are installed with spring inside spring catch body,
The Display Rack bar 10 is connected by the connecting tube compatible with size of elastic component 11, passes through the design of elastic component 11 and limit hole 9
So that the products application range of the splicing construction of the splicing pipe fitting greatly increases, install convenient, the purpose of fast quick-detach are realized.
The present invention is usually used in a shape Display Rack or screen is assembled by way of splicing when installing and using, and
The structure of different directions and polygon can be assembled, aesthetics is further enhanced, and satisfies the use demand.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to
The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.
Claims (8)
1. a kind of adjustable splicing pipe fitting, including the first connecting tube (1), the second company being connected in above the first connecting tube (1)
Take over (2), fastener (4), it is characterised in that: first connecting tube (1) is equipped with the first tooth engaged (18), and described second connects
It takes over (2) and is equipped with the second tooth engaged (19) compatible with the first tooth engaged (18) size, stung by fastener (4) by first
It closes tooth (18) and the second tooth engaged (19) is mutually twisted together；
It is connect on second connecting tube (2) and sets a third connecting tube (3) vertically upward, the third connecting tube (3) is equipped with
Limited post (7) or limiting slot (8), second connecting tube (2) are equipped with the limiting slot (8) of corresponding limited post (7) or correspond to limit
The limited post (7) of position slot (8), by fastener (4) by the first connecting tube (1), the second connecting tube (2) and third connecting tube (3)
It is fixed.
2. a kind of adjustable splicing pipe fitting according to claim 1, it is characterised in that: the section of the limited post (7)
In polygon, limiting slot (8) is in polygonal slot compatible with the section of limited post (7).
3. a kind of adjustable splicing pipe fitting according to claim 2, it is characterised in that: the polygon is hexagon,
Polygonal slot is hex slot.
4. a kind of adjustable splicing pipe fitting according to claim 1, it is characterised in that: the first connecting tube (1) packet
It includes the first round plate (15), described second connecting tube (2) one end is installed with the second round plate (14), the circle of the first round plate (15)
Shape disk is equipped with the first tooth engaged (18), and the round disk of second round plate (14) is equipped with and the first tooth engaged (18)
Compatible second tooth engaged (19) of size.
5. a kind of adjustable splicing pipe fitting according to claim 4, it is characterised in that: first round plate (15) two
Side is concaved with an arc-shaped depression portion (16), is convexly equipped on second round plate (14) and is mutually fitted with the size of arc-shaped depression portion (16)
The arc protrusion (17) matched.
6. a kind of adjustable splicing pipe fitting according to claim 2 or 4, it is characterised in that: first connecting tube (1)
And the second adjustable angle between connecting tube (2) is with the first connecting tube (1) axial line benchmark, entire angle of regulation range is ±
90°。
7. a kind of adjustable splicing pipe fitting according to claim 6, it is characterised in that: first connecting tube (1),
Two connecting tubes (2), third connecting tube (3) include pipe section (13), each of which pipe section (13) respectively offers a limit hole (9).
8. a kind of splicing construction for splicing pipe fitting, which is characterized in that including any one of Display Rack bar (10) and claim 1-7 institute
The adjustable splicing pipe fitting stated, Display Rack bar (10) lower section are installed with one and limit hole (9) compatible elastic component (11),
The Display Rack bar (10) is connected by elastic component (11) and compatible connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811616204.2A CN109469785A (en) | 2018-12-27 | 2018-12-27 | A kind of splicing construction splicing pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811616204.2A CN109469785A (en) | 2018-12-27 | 2018-12-27 | A kind of splicing construction splicing pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109469785A true CN109469785A (en) | 2019-03-15 |
Family
ID=65677596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811616204.2A Pending CN109469785A (en) | 2018-12-27 | 2018-12-27 | A kind of splicing construction splicing pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469785A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235265A (en) * | 2022-02-23 | 2022-03-25 | 东营鼎洪石油技术开发有限公司 | Oil field is with oil pressure seat that can install manometer fast |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190009389A (en) * | 1900-05-22 | 1901-04-06 | Arthur Isaac Bernard Maxfield | Improvements in Joints for Perambulators Mail Carts, and other Vehicles |
| GB191400946A (en) * | 1914-01-13 | 1914-11-05 | Jacobs Young & Co Ltd M | Improvements in or relating to Couplings for Rodding Canes used in Drains, Conduits, and so forth. |
| US1697710A (en) * | 1921-11-30 | 1929-01-01 | Samuel Robert Schwartz | Swivel joint |
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| DE3641693A1 (en) * | 1986-12-06 | 1988-06-16 | Dieter Ing Grad Glockner | Handrail for railings |
| US5275444A (en) * | 1992-09-21 | 1994-01-04 | Wythoff Johan G | Swivel hose coupling for pressurized fluid, fuel and gas systems |
| EP0579070A1 (en) * | 1992-07-17 | 1994-01-19 | SKS STAKUSIT KUNSTSTOFF GmbH + Co. KG | Assembly element for tubes |
| JPH0672376A (en) * | 1992-07-22 | 1994-03-15 | Batavus Bv | Adjustable handle bar stem |
| JP2003194021A (en) * | 2001-12-28 | 2003-07-09 | Daiwa House Ind Co Ltd | Bolt joint structure for members, nut and metal fitting |
| US20040177796A1 (en) * | 2002-03-13 | 2004-09-16 | Higgins John Andrew | Knuckle |
| CN203145196U (en) * | 2013-04-10 | 2013-08-21 | 姚传海 | Rod piece connecting device applied to complex building space structural system |
| CN205397083U (en) * | 2016-03-25 | 2016-07-27 | 中国神华能源股份有限公司 | Welt fixed knot structure, bolt and funnel structure |
| CN207421057U (en) * | 2017-11-17 | 2018-05-29 | 上海红快展示科技有限公司 | A kind of connector for the variable-angle for being used to construct showing stand |
| CN209587445U (en) * | 2018-12-27 | 2019-11-05 | 王建余 | A kind of splicing construction splicing pipe fitting |
-
2018
- 2018-12-27 CN CN201811616204.2A patent/CN109469785A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190009389A (en) * | 1900-05-22 | 1901-04-06 | Arthur Isaac Bernard Maxfield | Improvements in Joints for Perambulators Mail Carts, and other Vehicles |
| GB191400946A (en) * | 1914-01-13 | 1914-11-05 | Jacobs Young & Co Ltd M | Improvements in or relating to Couplings for Rodding Canes used in Drains, Conduits, and so forth. |
| US1697710A (en) * | 1921-11-30 | 1929-01-01 | Samuel Robert Schwartz | Swivel joint |
| US2423069A (en) * | 1945-02-13 | 1947-06-24 | Universal Lubricating Systems | Swivel attachment for couplers |
| US4543007A (en) * | 1983-11-17 | 1985-09-24 | Harvey Hubbell Incorporated | Adjustable luminaire support knuckle |
| DE3641693A1 (en) * | 1986-12-06 | 1988-06-16 | Dieter Ing Grad Glockner | Handrail for railings |
| EP0579070A1 (en) * | 1992-07-17 | 1994-01-19 | SKS STAKUSIT KUNSTSTOFF GmbH + Co. KG | Assembly element for tubes |
| JPH0672376A (en) * | 1992-07-22 | 1994-03-15 | Batavus Bv | Adjustable handle bar stem |
| US5275444A (en) * | 1992-09-21 | 1994-01-04 | Wythoff Johan G | Swivel hose coupling for pressurized fluid, fuel and gas systems |
| JP2003194021A (en) * | 2001-12-28 | 2003-07-09 | Daiwa House Ind Co Ltd | Bolt joint structure for members, nut and metal fitting |
| US20040177796A1 (en) * | 2002-03-13 | 2004-09-16 | Higgins John Andrew | Knuckle |
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| CN205397083U (en) * | 2016-03-25 | 2016-07-27 | 中国神华能源股份有限公司 | Welt fixed knot structure, bolt and funnel structure |
| CN207421057U (en) * | 2017-11-17 | 2018-05-29 | 上海红快展示科技有限公司 | A kind of connector for the variable-angle for being used to construct showing stand |
| CN209587445U (en) * | 2018-12-27 | 2019-11-05 | 王建余 | A kind of splicing construction splicing pipe fitting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235265A (en) * | 2022-02-23 | 2022-03-25 | 东营鼎洪石油技术开发有限公司 | Oil field is with oil pressure seat that can install manometer fast |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| 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: 20190315 |