CN109403472A - A kind of assembled architecture connecting node being easily installed - Google Patents
A kind of assembled architecture connecting node being easily installed Download PDFInfo
- Publication number
- CN109403472A CN109403472A CN201811606318.9A CN201811606318A CN109403472A CN 109403472 A CN109403472 A CN 109403472A CN 201811606318 A CN201811606318 A CN 201811606318A CN 109403472 A CN109403472 A CN 109403472A
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- Prior art keywords
- layer
- steel
- profile steel
- steel plate
- horizontal
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
- E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
The present invention discloses a kind of assembled architecture connecting node being easily installed, including vertical H profile steel plate, horizontal H profile steel plate and dog-ear plate, the left and right end of the vertical H profile steel plate is symmetrically arranged with taper sliding slot, the inner end of the horizontal H profile steel plate is fixedly connected with riser, side is fixedly connected with conical sliding block in the inner end of the riser, and the internal slide of the taper sliding slot is equipped with conical sliding block.When in conical sliding block insertion taper sliding slot, under horizontal H profile steel plate self gravity, limitation conical sliding block is deviate from outward bores sliding sliding slot, passes through follow block, horizontal H profile steel plate is limited to move down, cooperation is screwed by the spiral of threaded hole and bolt column, and operates method that is more convenient, while using upside rotation bolt column, it is slidably matched by the annulus of upper and lower sides to pivoted housing, so that will not move up and down when bar rotation, then bolt column does not fall out dog-ear plate, and bolt column will not slip out of the hand and fall to ground.
Description
Technical field
The present invention relates to assembled architecture connecting node technical field, specifically a kind of assembled architecture being easily installed connects
Connect node.
Background technique
For steel building compares traditional concrete construction, with steel plate or fashioned iron instead of armored concrete, intensity
Higher, shock resistance is more preferable, and since component can be made with batch production, in-site installation, thus greatly reduces the duration, due to steel
It is reusable, building waste can be greatly reduced, it is more environmentally protective, thus be widely used by countries in the world, apply
In industrial building and civil buildings.
In existing steel building, H profile steel plate and horizontal H profile steel plate are indulged as weight shape is built and supports coupling part, be steel
Main frame in structure, but had the following problems when installation: first, vertical H profile steel plate and horizontal H profile steel plate mostly use four side L-types
Steel plate is fixed with more bolts, but needs to hold the horizontal H profile steel plate of two sides when maintenance, very inconvenient, and second, it adopts simultaneously
It is installed with separating type bolt, especially in high altitude operation, bolt is easy to slip out of the hand.
Summary of the invention
The present invention provides a kind of assembled architecture connecting node being easily installed, and can be effectively solved and deposits in above-mentioned background
The technical issues of.
To achieve the goals above, the invention provides the following technical scheme:
A kind of assembled architecture connecting node being easily installed, including vertical H profile steel plate, dog-ear plate, two horizontal H profile steel plates,
The both ends of the vertical H profile steel plate are symmetrically arranged with taper sliding slot, and the inner end of described two horizontal H profile steel plates is fixedly connected to riser,
Conical sliding block is fixedly connected in the middle part of the inner end end face of the riser, described two conical sliding blocks are respectively from two taper sliding slots
Top is slidably installed into the inside of two taper sliding slots；The lower end of described two horizontal H profile steel plates is fixedly connected to follow block, institute
State lower end in contact of one end upper surface of each follow block with vertical H profile steel plate；It is horizontal that the upper end of the horizontal H profile steel plate is equipped with reeve
The inserting column of H profile steel plate offers locating slot on two side plates being arranged on the dog-ear plate, and the inserting column upper end passes through positioning
Slot；Bull stick is provided with above described two side plates, the both ends difference sliding contact of the bull stick is on two side plates, the bull stick
Lower section be fixedly connected with rotary column, the lower end of the rotary column is fixedly connected with bolt column；Be provided in the middle part of the dog-ear plate to
The notch board of lower recess, the notch board are arranged in the inside of the middle side of vertical H profile steel plate, are provided with turn hole at the center of the notch board,
The middle side of the vertical H profile steel plate is internally threaded hole, and the bolt column passes through turn hole and spiral is fit into threaded hole, institute
The lower end for stating rotary column is bonded with rubber conical ring, and the lower end outer rim of the rubber conical ring, which compresses the upper surface of contact notch board and covers, to be turned
Gap between column and turn hole；The inside of the dog-ear plate include manganese steel layer, wolfram steel fibrous layer, high-carbon steel layer, titanium steel layer and
Silicon steel layer, the inside of the conical sliding block include tungsten steel alloy layer, manganese steel fibrous layer, tungsten-titanium alloy layer, corundum layer and tungsten-cobalt
Alloy-layer.
Preferably, two connecting rods are symmetrically arranged on the inside of two vertical plates of the middle part setting of the dog-ear plate, it is described
The inner end of each connecting rod is fixedly connected to pivoted housing, and the internal slide of the pivoted housing is socketed with rotary column, the middle part of the rotary column
Annulus is symmetrically arranged on outer wall, the inner end of described two annulus is respectively used to contact with the upper and lower ends of two pivoted housings.
Preferably, the upper surface of the lower surface bonds wolfram steel fibrous layer of the manganese steel layer, the following table of the wolfram steel fibrous layer
Face is bonded the upper surface of high-carbon steel layer, the upper surface of the lower surface bonds titanium steel layer of the high-carbon steel layer, under the titanium steel layer
The upper surface of surface bonding tungsten steel alloy layer.
Preferably, manganese steel fibrous layer is coated on the outside of the tungsten steel alloy layer, the outside of the manganese steel fibrous layer coats tungsten titanium
Alloy-layer, the outside Even Sintering of the tungsten-titanium alloy layer have corundum layer, the outside tight tungsten-cobalt alloy of the corundum layer
Layer.
Preferably, the manganese steel layer with a thickness of 1.5 centimetres.
Preferably, the model 50Mn of the high-carbon steel layer, and with a thickness of 0.8 centimetre.
Preferably, the corundum layer with a thickness of 2 centimetres.
Preferably, the material of the follow block is 302 stainless steels.
The beneficial effects of the present invention are:
First, when conical sliding block insertion taper sliding slot in when, under horizontal H profile steel plate self gravity, limitation conical sliding block to
Sliding sliding slot is bored in outer abjection, and simultaneously, the lower end surface of horizontal H profile steel plate connects follow block, by follow block, limits horizontal H profile steel plate to moving down
It is dynamic, cooperation is screwed by the spiral of threaded hole and bolt column, so that vertical H profile steel plate and horizontal H are close in the lower end surface of two side plates
The upper surface of shape steel plate, and operate more convenient；Second, while using the method for rotation bolt column, pass through setting up and down two
A annulus is slidably matched to pivoted housing, so that will not move up and down when bar rotation, then bolt column does not fall out dog-ear plate, spiral shell
Hitching post will not slip out of the hand and fall to ground.
Detailed description of the invention
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1: main view local cutting schematic diagram of the present invention.
Fig. 2: conical sliding block of the present invention and taper sliding slot cooperate schematic diagram.
Fig. 3: rubber conical ring of the present invention and rotary column cooperate schematic diagram.
Fig. 4: rubber of the present invention overlooks local cutting schematic diagram.
Fig. 5: enlarged structure schematic diagram at a of the present invention.
Fig. 6: conical sliding block schematic diagram of internal structure of the present invention.
In figure: 1, indulging H profile steel plate, 2, taper sliding slot, 4, horizontal H profile steel plate, 5, riser, 6, conical sliding block, 7, follow block, 8, folding
Gusset, 9, locating slot, 10, inserting column, 11, connecting rod, 12, pivoted housing, 13, rotary column, 14, annulus, 15, bull stick, 16, turn hole, 17, rubber
Glue conical ring, 18, bolt column, 19, threaded hole, 20, manganese steel layer, 21, wolfram steel fibrous layer, 22, high-carbon steel layer, 23, titanium steel layer, 24,
Silicon steel layer, 25, tungsten steel alloy layer, 26, manganese steel fibrous layer, 27, tungsten-titanium alloy layer, 28, corundum layer, 29, tungsten-cobalt alloy layer.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering:
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the present invention provides a kind of assembled architecture connecting node being easily installed, packet
Vertical H profile steel plate 1, dog-ear plate 8 and two horizontal H profile steel plates 4 are included, the left and right end of vertical H profile steel plate 1 is symmetrically arranged with taper sliding slot 2, horizontal H
The inner end of shape steel plate 4 is fixedly connected with riser 5, and conical sliding block 6, two cones are fixedly connected in the middle part of the inner end end face of riser 5
Shape sliding block 6 is slidably installed respectively into the inside of two taper sliding slots 2 above two taper sliding slots 2, when conical sliding block 6 is inserted into
When in taper sliding slot 2, under horizontal 4 self gravity of H profile steel plate, limitation conical sliding block 6 deviates from taper sliding slot 2, two horizontal H-types outward
The lower end of steel plate 1 is fixedly connected to follow block 7, and lower end in contact of one end upper surface of each follow block 7 with vertical H profile steel plate 1 is supported
The material of plate 7 is 302 stainless steels, and 302 stainless steels have intensity high, and corrosion resistant characteristic limits horizontal H profile steel plate by follow block 7
4 move down；The upper end of horizontal H profile steel plate 4 is equipped with the inserting column 10 for injecting horizontal H profile steel plate 4, two sides being arranged on dog-ear plate 8
Locating slot 9 is offered on plate 81,10 upper end of inserting column passes through locating slot 9, is inserted by the positioning of locating slot 9 and inserting column 10
Cooperation, so that the middle part stabilization of dog-ear plate 8 is placed in inside the middle side of vertical H profile steel plate 1.
Refering to fig. 1, bull stick 15 is provided with above two side plates 81, the both ends difference sliding contact of bull stick 15 is in two side plates
On 81, the lower section of the bull stick 15 is fixedly connected with rotary column 13, and the lower end of rotary column 13 is fixedly connected with bolt column 18, dog-ear plate 8
Middle part be provided with the notch board 82 to lower recess, the inside of the middle side of vertical H profile steel plate 1, the center of notch board 82 is arranged in notch board 82
Place is provided with turn hole 16, and the middle side of vertical H profile steel plate 1 is internally threaded hole 19, and bolt column 18 passes through turn hole 16 and spiral installation
Into in threaded hole 19, cooperation is screwed by the spiral of threaded hole 19 and bolt column 18, so that the lower end surface of two side plates 81 is equal
It is close to the upper surface of vertical H profile steel plate 1 and horizontal H profile steel plate 4.
Refering to fig. 1, the inside of two vertical plates 83 of the middle part setting of dog-ear plate 8 is symmetrically arranged with two connecting rods 11, institute
The inner end for stating each connecting rod 11 is fixedly connected to pivoted housing 12, and the internal slide of pivoted housing 12 is socketed with rotary column 13, rotary column 13
Annulus 14 is symmetrically arranged on the outer wall of middle part, the inner end of two annulus is respectively used to contact with the upper and lower ends of two pivoted housings, therefore
Rotary column 13 can limit cooperation to the contact of pivoted housing 12 by two annulus 14, thus to 15 turns of bull stick in 12 inner rotation of pivoted housing
Dynamic movement is limited, and the downside of rotary column 13 is bonded with rubber conical ring 17, and the lower end outer rim of rubber conical ring 17, which compresses, at this time connects
It touches the upper surface of notch board 82 and covers the gap between rotary column 13 and turn hole 16, limitation foreign matter enters bolt column 18 and screw thread
Hole 19 cooperates in gap and influences bolt column 18 and the cooperation smoothness of threaded hole 19.
Refering to Fig. 5, the inside of dog-ear plate 8 includes manganese steel layer 20, wolfram steel fibrous layer 21, high-carbon steel layer 22, titanium steel layer 23
With silicon steel layer 24, the upper surface of the lower surface bonds wolfram steel fibrous layer 21 of manganese steel layer 20, manganese steel layer 20 with a thickness of 1.5 centimetres,
Manganese steel layer 20 has good bend resistance intensity, and material is hard, is taken off by wolfram steel fibrous layer 21 and is attached to its downside, so that it is strong
Degree is more preferable, the upper surface of the lower surface bonds high-carbon steel layer 22 of wolfram steel fibrous layer 21, the model 50Mn of high-carbon steel layer 22, high-carbon
Steel layer 22 has rigidity well, and with a thickness of 0.8 centimetre, the upper surface of the lower surface bonds titanium steel layer 23 of high-carbon steel layer 22,
The upper surface of the lower surface bonds tungsten steel alloy layer 24 of titanium steel layer 23, titanium steel layer 23 and tungsten steel alloy layer 24 have well just
Property, enabling capabilities are strong.
Refering to Fig. 6, the inside of conical sliding block 6 include tungsten steel alloy layer 25, manganese steel fibrous layer 26, tungsten-titanium alloy layer 27,
Corundum layer 28 and tungsten-cobalt alloy layer 29 coat manganese steel fibrous layer 26, the outside packet of manganese steel fibrous layer 26 on the outside of tungsten steel alloy layer 25
Tungsten-titanium alloy layer 27 is covered, tungsten steel alloy layer 25 has the characteristics that the high bend resistance deformation of intensity, takes off and be attached to by manganese steel fibrous layer 26
Its outside, so that its intensity is higher, the outside Even Sintering of tungsten-titanium alloy layer 27 has corundum layer 28, and 27 toughness of tungsten-titanium alloy layer is excellent
It is good, corundum layer 28 with a thickness of 2 centimetres, 28 rigidity of corundum layer is strong, and interior molecules are fine and closely woven, the outside tight of corundum layer 28
Tungsten-cobalt alloy layer 29, the tool of tungsten-cobalt alloy layer 29 has good wearability, and intensity is high.
The present invention is in the specific implementation: when vertical H profile steel plate 1 is not connected with horizontal H profile steel plate 4, dog-ear plate 8 and vertical H profile steel plate 1
It is in separated position with horizontal H profile steel plate 4, when installation, conical sliding block 6 is inserted into taper sliding slot 2, because conical sliding block 6 and taper is sliding
Slot 2 is to be slidably matched, and when conical sliding block 6 is inserted into taper sliding slot 2, under horizontal 4 self gravity of H profile steel plate, limitation taper is sliding
Sliding sliding slot 2 is bored in abjection to block 6 outward, and simultaneously, the lower end surface contact plate 7 of horizontal H profile steel plate 4 limits horizontal H profile steel by follow block 7
Plate 4 moves down, and the locating slot 9 being respectively provided on two side plates 81 is inserted into inserting column 10, while 18 lower end of bolt column corresponds to spiral shell
Pit 19 rotates clockwise bull stick 15 so that bolt column 18 screw in threaded hole 19 in, until bolt column 18 revolve it is motionless until, this
When rubber conical ring 17 lower end outer rim tight contact between notch board 82 and cover the gap between rotary column 13 and turn hole 16, limitation is external miscellaneous
Matter enters bolt column 18 and threaded hole 19 cooperates in gap and influences bolt hole 18 and the cooperation smoothness of threaded hole 19, passes through screw thread
The spiral of hole 19 and bolt column 18 screws cooperation, so that vertical H profile steel plate 1 and horizontal H profile steel plate 4 are close in the lower end surface of two side plates 81
Upper surface, be inserted into and cooperated by the positioning of locating slot 9 and inserting column 10, so that the stabilization of notch board 82 is placed in vertical H profile steel plate 1
Inside side, without holding the horizontal H profile steel plate 4 of two sides, and method that is more convenient, while using rotation bolt column 18 is operated, led to
Two being slidably matched to pivoted housing 12 of annulus 14 setting up and down are crossed, so that movement when rotating to bull stick 15 limits, after
And bolt column 18 does not fall out dog-ear plate 8, bolt column 18 will not slip out of the hand and fall to ground, and manganese steel layer 20 has good bending resistance
Intensity is rolled over, and material is hard, is taken off by wolfram steel fibrous layer 21 and be attached to its downside, so that its intensity is more preferable, titanium steel layer 23 and wolfram steel
Alloy-layer 24 has rigidity well, and enabling capabilities are strong, so that 8 flexural strength of dog-ear plate is more preferable, while tungsten steel alloy layer 25
Have the characteristics that intensity high bend resistance deformation, by manganese steel fibrous layer 26 take off it is attached on the outside so that its intensity is higher, titanium steel layer
23 and tungsten steel alloy layer 24 have well rigidity, enabling capabilities are strong, so that 6 pairs of conical sliding block horizontal 4 load performances of H profile steel plate are more
It is excellent, then make vertical H profile steel plate 1 and horizontal 4 tie point of H profile steel plate firmer.
Invention is exemplarily described in above-mentioned combination attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as using this insubstantial improvement that the inventive concept and technical scheme of the present invention carry out, or not improved by hair
Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.
Claims (8)
1. a kind of assembled architecture connecting node being easily installed, including vertical H profile steel plate, dog-ear plate, two horizontal H profile steel plates,
Be characterized in that: the both ends of the vertical H profile steel plate are symmetrically arranged with taper sliding slot, and the inner end of described two horizontal H profile steel plates is fixed to be connected
It is connected to riser, conical sliding block is fixedly connected in the middle part of the inner end end face of the riser, described two conical sliding blocks are respectively from two
It is slidably installed above a taper sliding slot into the inside of two taper sliding slots；The lower end of described two horizontal H profile steel plates is fixed to be connected
It is connected to follow block, lower end in contact of one end upper surface of each follow block with vertical H profile steel plate；The upper end of the horizontal H profile steel plate
It is equipped with the inserting column for injecting horizontal H profile steel plate, offers locating slot, the inserting column on two side plates being arranged on the dog-ear plate
Upper end passes through locating slot；Bull stick is provided with above described two side plates, the both ends difference sliding contact of the bull stick is two sides
On plate, rotary column is fixedly connected with below the bull stick, the lower end of the rotary column is fixedly connected with bolt column；The dog-ear plate
Middle part is provided with the notch board to lower recess, and the notch board is arranged in the inside of the middle side of vertical H profile steel plate, at the center of the notch board
It is provided with turn hole, the middle side of the vertical H profile steel plate is internally threaded hole, and the bolt column passes through turn hole and spiral is fit into
In threaded hole, the lower end of the rotary column is bonded with rubber conical ring, and the lower end outer rim of the rubber conical ring compresses the upper of contact notch board
End face simultaneously covers the gap between rotary column and turn hole；The inside of the dog-ear plate includes manganese steel layer, wolfram steel fibrous layer, high-carbon steel
Layer, titanium steel layer and silicon steel layer, the inside of the conical sliding block include tungsten steel alloy layer, manganese steel fibrous layer, tungsten-titanium alloy layer, just
Beautiful layer and tungsten-cobalt alloy layer.
2. a kind of assembled architecture connecting node being easily installed according to claim 1, it is characterised in that: the dog-ear
Two connecting rods are symmetrically arranged on the inside of two vertical plates of the middle part setting of plate, the inner end of each connecting rod is fixed to be connected
It is connected to pivoted housing, the internal slide of the pivoted housing is socketed with rotary column, it is symmetrically arranged with annulus on the middle part outer wall of the rotary column, described two
The inner end of a annulus is respectively used to contact with the upper and lower ends of two pivoted housings.
3. a kind of assembled architecture connecting node being easily installed according to claim 1, it is characterised in that: the manganese steel
The upper surface of the lower surface bonds wolfram steel fibrous layer of layer, the upper surface of the lower surface bonds high-carbon steel layer of the wolfram steel fibrous layer,
The upper surface of the lower surface bonds titanium steel layer of the high-carbon steel layer, the upper table of the lower surface bonds tungsten steel alloy layer of the titanium steel layer
Face.
4. a kind of assembled architecture connecting node being easily installed according to claim 1, it is characterised in that: the wolfram steel
Manganese steel fibrous layer is coated on the outside of alloy-layer, the outside of the manganese steel fibrous layer coats tungsten-titanium alloy layer, the tungsten-titanium alloy layer
Outside Even Sintering has corundum layer, the outside tight tungsten-cobalt alloy layer of the corundum layer.
5. a kind of assembled architecture connecting node being easily installed according to claim 1, it is characterised in that: the manganese steel
Layer with a thickness of 1.5 centimetres.
6. a kind of assembled architecture connecting node being easily installed according to claim 1, it is characterised in that: the high-carbon
The model 50Mn of steel layer, and with a thickness of 0.8 centimetre.
7. a kind of assembled architecture connecting node being easily installed according to claim 1, it is characterised in that: the corundum
Layer with a thickness of 2 centimetres.
8. a kind of assembled architecture connecting node being easily installed according to claim 1, it is characterised in that: the follow block
Material be 302 stainless steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606318.9A CN109403472A (en) | 2018-12-26 | 2018-12-26 | A kind of assembled architecture connecting node being easily installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606318.9A CN109403472A (en) | 2018-12-26 | 2018-12-26 | A kind of assembled architecture connecting node being easily installed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109403472A true CN109403472A (en) | 2019-03-01 |
Family
ID=65461458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811606318.9A Pending CN109403472A (en) | 2018-12-26 | 2018-12-26 | A kind of assembled architecture connecting node being easily installed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109403472A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576626A (en) * | 2020-06-04 | 2020-08-25 | 常州欧普莱机械制造有限公司 | Novel steel structure node locking structure of spray room and drying tunnel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207727605U (en) * | 2017-12-07 | 2018-08-14 | 龚丽敏 | A kind of new steel structure wall column feet connecting structure |
| CN208232497U (en) * | 2017-12-31 | 2018-12-14 | 广东博杰特新材料科技有限公司 | A kind of Washable metal material |
-
2018
- 2018-12-26 CN CN201811606318.9A patent/CN109403472A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207727605U (en) * | 2017-12-07 | 2018-08-14 | 龚丽敏 | A kind of new steel structure wall column feet connecting structure |
| CN208232497U (en) * | 2017-12-31 | 2018-12-14 | 广东博杰特新材料科技有限公司 | A kind of Washable metal material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576626A (en) * | 2020-06-04 | 2020-08-25 | 常州欧普莱机械制造有限公司 | Novel steel structure node locking structure of spray room and drying tunnel |
| CN111576626B (en) * | 2020-06-04 | 2021-04-02 | 常州欧普莱机械制造有限公司 | Spout room and drying tunnel steel construction node locking structure |
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Application publication date: 20190301 |
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