CN109208835A - It is a kind of to lift convenient precast stair and its installation method - Google Patents
It is a kind of to lift convenient precast stair and its installation method Download PDFInfo
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- CN109208835A CN109208835A CN201811240283.1A CN201811240283A CN109208835A CN 109208835 A CN109208835 A CN 109208835A CN 201811240283 A CN201811240283 A CN 201811240283A CN 109208835 A CN109208835 A CN 109208835A
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- precast stair
- lifting
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- stair ontology
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
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- 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
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The present invention relates to a kind of convenient precast stair of lifting and its installation methods, it is related to pre-cast building and installs and designs technical field, solves the technical issues of lifting pre-embedded bolt reserved after the completion of lifting influences installation, it includes precast stair ontology that one of which, which lifts convenient precast stair, precast stair body length direction two sides side wall and its step are equipped with several recessing grooves, it is equipped in the recessing groove and lifts pre-buried hanging ring, it is projected as on the pre-buried hanging ring vertical direction of lifting arc-shaped, and the pre-buried hanging ring both ends of lifting are fully sunk in the recessing groove to the pre-buried hanging ring of lifting respectively；It is stepped down by the recessing groove on precast stair ontology to pre-buried hanging ring is lifted, enable and lifts the not prominent precast stair outer body face setting of pre-buried hanging ring, and after the completion of lifting, recessing groove is filled by mortar, to ensure that the outer surface of precast stair ontology can facilitate the installation of other parts.
Description
Technical field
The present invention relates to pre-cast building install and design technical field more particularly to a kind of convenient precast stair of lifting and its
Installation method.
Background technique
Stair are essential elements in building, and prefabricated gangboard standardized rate is high, pre- using industrial production
Stair processed will necessarily bring considerable benefit.
A kind of novel precast stair, packet are fitted up as Chinese patent that Authorization Notice No. is CN205777186U discloses
Precast stair and ridge design step surface are included, there are pin key holes with floor lap-joint for precast stair both ends step, described recessed
Convex decorative pattern step surface is provided with lifting pre-embedded bolt A, and the stair side is provided with lifting pre-embedded bolt B.
One kind disclosed in above-mentioned technical proposal is novel to fit up precast stair, and the surface by precast stair is recessed
Convex decorative pattern step surface, so that being firmly bonded, precast stair apparent mass in paving marble or other ornament materials
It is good.And in stair position fixing process, lifting pre-embedded bolt A and B by two sides lifts it, therefore in manufacturing process,
Need for the lifting pre-embedded bolt of two sides to be provided projectingly, in this way, after installation is complete, need by cutting machine or other set
Standby to cut to lifting pre-embedded bolt, after the completion of cutting, lifting pre-embedded bolt still has part and is provided projectingly, in this way, being installed
The sub- later period addition accessory of precast stair during, need the position to lifting pre-embedded bolt to avoid, lead to installation not
Convenient situation.
Summary of the invention
One of them of the invention is designed to provide a kind of convenient precast stair of lifting, with spy easy for installation
Point.
Foregoing invention purpose of the invention has the technical scheme that
A kind of convenient precast stair of lifting, including precast stair ontology, precast stair body length direction two sides side wall
And its step is equipped with several recessing grooves, is equipped in the recessing groove and lifts pre-buried hanging ring, it is described to lift pre-buried hanging ring side vertically
It is projected as upwards arc-shaped, and the pre-buried hanging ring both ends of the lifting are fully sunk in the resigning to the pre-buried hanging ring of lifting respectively
In slot.
By using above-mentioned technical proposal, allowed by the recessing groove on precast stair ontology pre-buried hanging ring is lifted
Position enables and lifts the not prominent precast stair outer body face setting of pre-buried hanging ring, and after the completion of lifting, will by mortar
Recessing groove is filled, to ensure that the outer surface of precast stair ontology can facilitate the installation of other parts.
Preferably, framework of steel reinforcement, the pre-buried hanging ring of lifting and the framework of steel reinforcement are equipped in the precast stair ontology
It is wholely set.
By using above-mentioned technical proposal, by the setting of framework of steel reinforcement so that the structural strength of precast stair ontology itself
It can be guaranteed, while the pre-buried hanging ring of the lifting by being wholely set with framework of steel reinforcement, so that in carrying out hoisting process, it can
To be effectively prevented from since precast stair ontology dead weight is larger, cause to lift the case where pre-buried hanging ring falls off appearance.
Preferably, precast stair ontology both ends are fixed on cast-in-situ stair platform, the precast stair body length
Wherein one or both ends are designed with the fixed block being provided projectingly in direction, and the cast-in-situ stair platform is equipped with and the fixed block phase
The relief hole being mutually equipped with.
By using above-mentioned technical proposal, by the mutual cooperation between the fixed block and relief hole that are provided projectingly to prefabricated
Stair ontology is pre-positioned, and facilitates construction personnel's later period and precast stair body position is fixed.
Preferably, the two sides side on the fixed block vertical direction is obliquely installed, and inclined direction is away from described prefabricated
The setting of stair ontology；And the fixed block is equipped with the through hole being obliquely installed, the cast-in-situ stair platform is equipped with location hole,
The positioning hole is inserted with the pilot pin being detachably connected, when the fixed block is located in the relief hole, the positioning
Hole is coaxially set with the through hole.
It by using above-mentioned technical proposal, is coaxially disposed by location hole and through hole, and by running through location hole and passing through
Relative position between the two is fixed in the pilot pin of perforation, to realize flat to precast stair ontology and cast-in-situ stair
Being fixed to each other between platform, ensure that after being installed, and be able to maintain being fixed to each other between position between the two.
Preferably, the precast stair ontology is located at its horizontal plane equipped with the limiting slot being arranged in a mutually vertical manner, the limit
The levelling tube being detachably fixed is respectively equipped in the slot of position.
By using above-mentioned technical proposal, when precast stair ontology to be installed on cast-in-situ stair platform, need to guarantee
Precast stair ontology horizontal plane keeps horizontal, by the levelling tube being arranged in a mutually vertical manner, is facilitated by levelling tube to prefabricated building
Terraced ontology is adjusted and holding is horizontal, ensure that the precast stair ontology being installed is able to maintain level.
Another object of the present invention is that a kind of installation method for lifting convenient precast stair is provided, for installing
A kind of above-mentioned convenient precast stair of lifting comprising the steps of:
S1: measurement, unwrapping wire: after the completion of stair part Zhou Bianliang lifting, measure and talk out corresponding staircase component end and side control
Line processed；
S2: component is marched into the arena inspection: each piece fitment to precast stair ontology and on precast stair ontology carries out quality inspection
It looks into；
S3: suspender installation: according to the formal character suspender of precast stair ontology, the hook of suspender end being hooked on hanging ring, and
Low across the suspension hook and precast stair ontology that connect tower crane by cucurbit；
S4: lifting, leveling: precast stair ontology is lifted up by tower crane and from the ground highly at least 20cm, adjust and protect
Hold the level of precast stair ontology；
S5: handling: safety, the top that precast stair ontology quickly, is smoothly hung to place in place；
S6: in place, adjustment: will wherein wherein one end end position is fixed precast stair ontology, and it is pre- according to what is released
Stair body edges processed guarantee that precast stair ontology two sides are precisely in place, adjust and keep the level of precast stair ontology；
S7: mortar is filled recessing groove；
S8: it mends reserved opening: being filled up reserved opening using higher leveled mortar.
By using above-mentioned technical proposal, precast stair ontology is lifted up by tower crane and from the ground height at least
20cm is facilitated in the construction process, is moved to precast stair body position, and will not cause to damage to precast stair ontology
It is bad.
Preferably, the adjustment in the S4 and S7 and keep precast stair ontology level be by be located at the prefabricated building
What the levelling tube in the limiting slot being arranged in a mutually vertical manner on terraced ontology was realized.
By using above-mentioned technical proposal, is realized by the levelling tube in limiting slot and the level of precast stair ontology is adjusted
It section and keeps, and after being installed, levelling tube can be disassembled and be reused, and effectively reduce the cost of construction.
Preferably, after disassembling levelling tube before S8, and limiting slot is filled by mortar.
By using above-mentioned technical proposal, limiting slot is filled by mortar, ensure that on precast stair ontology
The face for placing levelling tube is capable of forming an entirety, to ensure that the later period easily can add zero to precast stair ontology
Part.
Preferably, it after the completion of S4, needs the fixed contraposition in position: precast stair ontology is hung on cast-in-situ stair platform,
And the position for adjusting precast stair ontology keeps the fixed block on precast stair ontology and the relief hole on cast-in-situ stair platform mutual
Cooperation.
By using above-mentioned technical proposal, facilitated by the mutual cooperation between fixed block and relief hole to precast stair
Being fixed to each other between ontology and cast-in-situ stair platform, ensure that in installation process, and the position of precast stair ontology is able to maintain
It is constant, avoid its sliding from influencing installation progress.
Preferably, after the fixed block and the relief hole cooperate, through hole and location hole are passed through by pilot pin
It is fixed between precast stair ontology and cast-in-situ stair platform.
By using above-mentioned technical proposal, by pilot pin to opposite position between the two across through hole and location hole
It sets and is fixed, to ensure that in precast stair ontology installation process, between precast stair ontology and cast-in-situ stair platform
Relative position is kept constant.
In conclusion advantageous effects of the invention are as follows:
1. being stepped down by the recessing groove on precast stair ontology to pre-buried hanging ring is lifted, enables and lift pre-buried hanging ring not
Prominent precast stair outer body face setting, and after the completion of lifting, recessing groove is filled by mortar, to ensure that
The outer surface of precast stair ontology can facilitate the installation of other parts；
2. be coaxially disposed by location hole and through hole, and by the pilot pin through location hole and through hole between the two
Relative position is fixed, to realize to being fixed to each other between precast stair ontology and cast-in-situ stair platform, ensure that
After being installed, it is able to maintain being fixed to each other between position between the two；
3. being facilitated by levelling tube by the levelling tube being arranged in a mutually vertical manner and precast stair ontology being adjusted and kept water
It is flat, it ensure that the precast stair ontology being installed is able to maintain level.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the schematic cross-section of Fig. 1.
Fig. 3 is the enlarged diagram of A in Fig. 1.
In figure, 1, precast stair ontology；11, recessing groove；12, pre-buried hanging ring is lifted；13, framework of steel reinforcement；14, fixed block；
141, inclined surface；142, through hole；15, limiting slot；151, levelling tube；2, cast-in-situ stair platform；21, relief hole；22, it positions
Hole；221, pilot pin.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1:
A kind of convenient precast stair of lifting, as shown in Figure 1, including precast stair ontology 1,1 length direction of precast stair ontology
Two sides side wall and its step are equipped with several recessing grooves 11, are equipped in recessing groove 11 and lift pre-buried hanging ring 12, lift pre-buried hanging ring
It is projected as arc-shaped on 12 vertical directions, and lifts pre-buried 12 both ends of hanging ring and be fully sunk in resigning to lifting pre-buried hanging ring 12 respectively
In slot 11.In this way, stepped down in installation process by 11 pairs of the recessing groove pre-buried hanging rings 12 of lifting on precast stair ontology 1,
Enable and lift not prominent 1 lateral surface of the precast stair ontology setting of pre-buried hanging ring 12, and after the completion of lifting, it will by mortar
Recessing groove 11 is filled, to ensure that the outer surface of precast stair ontology 1 can facilitate the installation of other parts.
It is facilitated by the pre-buried hanging ring 12 of lifting and precast stair ontology 1 is lifted, and in carrying out hoisting process, in advance
1 dead weight of stair ontology processed is larger, directly lifts, and be easy to cause and lifts falling off for pre-buried hanging ring 12, therefore, the present embodiment
In, as shown in Fig. 2, being equipped with framework of steel reinforcement 13 in precast stair ontology 1, lifts pre-buried hanging ring 12 and integrally set with framework of steel reinforcement 13
It sets.In this way, the setting by framework of steel reinforcement 13 enables the structural strength of precast stair ontology 1 itself to be guaranteed, simultaneously
By the pre-buried hanging ring 12 of the lifting being wholely set with framework of steel reinforcement 13, so that can be effectively avoided in carrying out hoisting process
Since 1 dead weight of precast stair ontology is larger, cause to lift the case where pre-buried hanging ring 12 falls off appearance.
In the present embodiment, in order to realize the fixation of prefabricated building position, as shown in Figure 1,1 both ends of precast stair ontology are fixed on
On cast-in-situ stair platform 2, and here, wherein one or both ends are designed with consolidating of being provided projectingly to 1 length direction of precast stair ontology
Determine block 14, cast-in-situ stair platform 2 is equipped with the relief hole 21 for the setting that cooperates with fixed block 14；In the present embodiment, such as Fig. 1 institute
Show, 1 length direction both ends of precast stair ontology are equipped with the fixed block 14 being provided projectingly.In this way, to 1 position of precast stair ontology
During being fixed, by the mutual cooperation between the fixed block 14 being provided projectingly and relief hole 21 to precast stair ontology 1
It is pre-positioned, facilitating construction personnel's later period is fixed 1 position of precast stair ontology.
In order to guarantee being fixed to each other between fixed block 14 and relief hole 21, in the present embodiment, as shown in figure 3, fixed block
Two sides side on 14 vertical directions is formed slopely inclined surface 142, and the inclined direction of inclined surface 142 deviates from precast stair ontology
1 setting；And here, fixed block 14 is equipped with the through hole 142 being obliquely installed, and is located at cast-in-situ stair platform 2 and is equipped with location hole
22, and the pilot pin 221 being detachably connected is inserted in location hole 22；When fixed block 14 is located in relief hole 21, location hole
22 are coaxially set with through hole 142.In this way, by the pilot pin 221 through location hole 22 and through hole 142 between the two
Relative position be fixed, to realize to being fixed to each other between precast stair ontology 1 and cast-in-situ stair platform 2.
It is carried out in installation process to precast stair ontology 1, it is also necessary to keep the water of the horizontal plane of precast stair ontology 1 itself
It is flat, here, as shown in figure 3, it is located at the limiting slot 15 for being equipped with and being arranged in a mutually vertical manner on its horizontal plane in precast stair ontology 1, limit
The levelling tube 151 being detachably fixed is respectively equipped in the slot 15 of position.In this way, being put down precast stair ontology 1 is installed to cast-in-situ stair
When on platform 2, needs to guarantee that the 1 horizontal plane holding of precast stair ontology is horizontal, by the levelling tube 151 being arranged in a mutually vertical manner, pass through
Levelling tube 151, which facilitates, to be adjusted precast stair ontology 1 and holding is horizontal, ensure that the precast stair ontology being installed
1 is able to maintain level；And here, levelling tube 151 is accommodated by limit, dismantles levelling tube 151 after being installed, and
It is filled by mortar, so as to avoid there is the appearance of the case where pit on precast stair ontology 1.
Embodiment 2:
A kind of installation method lifting convenient precast stair lifts convenient prefabricated building for installing one of embodiment 1
Ladder comprising the steps of:
S1: measurement, unwrapping wire: after the completion of stair part Zhou Bianliang lifting, measure and talk out corresponding staircase component end and side control
Line processed；
S2: component is marched into the arena inspection: each piece fitment to precast stair ontology 1 and on precast stair ontology 1 carries out quality
It checks；
S3: suspender installation: according to the formal character suspender of precast stair ontology 1, the hook of suspender end being hooked on hanging ring, and
Low across the suspension hook and precast stair ontology 1 that connect tower crane by cucurbit；
S4: lifting, leveling: precast stair ontology 1 is lifted up by tower crane and from the ground highly at least 20cm, adjust and protect
Hold the level of precast stair ontology 1；Here, the level for adjusting and keeping precast stair ontology 1 is by being located at precast stair sheet
What the levelling tube 151 in the limiting slot 15 being arranged in a mutually vertical manner on body 1 was realized.In this way, by tower crane by precast stair ontology 1 to
Upper promotion and from the ground height at least 20cm, facilitate in the construction process, move to 1 position of precast stair ontology, and
Precast stair ontology 1 will not be damaged.And it is realized by the levelling tube 151 in limiting slot 15 to precast stair ontology 1
Level tune and holding, and after being installed, levelling tube 151 can be disassembled and be reused, and effectively reduced and applied
The cost of work.
To the fixed contraposition in the position of prepackage stair: precast stair ontology 1 being hung on cast-in-situ stair platform 2, and is adjusted pre-
The position of stair ontology 1 processed makes the fixed block 14 on precast stair ontology 1 and the 21 phase interworking of relief hole on cast-in-situ stair platform 2
It closes；And by pilot pin 221 across through hole 142 and location hole 22 to precast stair ontology 1 and cast-in-situ stair platform 2 into
Row is fixed.In this way, being facilitated by the mutual cooperation between fixed block 14 and relief hole 21 to precast stair ontology 1 and cast-in-place building
Being fixed to each other between terraced platform 2, ensure that in installation process, and the position of precast stair ontology 1 is able to maintain constant, avoid it
Sliding influences installation progress；And pass through pilot pin 221 across through hole 142 and location hole 22 to relative position between the two
It is fixed
S5: handling: safety, the top that precast stair ontology 1 quickly, is smoothly hung to place in place；
S6: in place, adjustment: will wherein wherein one end end position is fixed precast stair ontology 1, and it is pre- according to what is released
1 edge of stair ontology processed guarantees that 1 two sides of precast stair ontology are precisely in place, adjusts and keep the level of precast stair ontology 1；
S7: levelling tube 151 is disassembled, and is filled by mortar to limiting slot 15, then by mortar to recessing groove 11
It is filled.In this way, limiting slot 15 is filled by mortar, ensure that the placement levelling tube 151 on precast stair ontology 1
Face be capable of forming an entirety, thus ensure that the later period can easily to precast stair ontology 1 add components.
S8: being mended reserved opening: being filled up reserved opening using higher leveled mortar, and the installation of precast stair ontology 1 is completed.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of convenient precast stair of lifting, including precast stair ontology (1), it is characterised in that: the precast stair ontology
(1) length direction two sides side wall and its step are equipped with several recessing grooves (11), and it is pre-buried that lifting is equipped in the recessing groove (11)
Hanging ring (12) is projected as arc-shaped, and the pre-buried hanging ring (12) two of lifting on pre-buried hanging ring (12) vertical direction of the lifting
End is fully sunk in the recessing groove (11) to the pre-buried hanging ring (12) of lifting respectively.
2. a kind of convenient precast stair of lifting according to claim 1, it is characterised in that: the precast stair ontology
(1) framework of steel reinforcement (13) are equipped in, the pre-buried hanging ring (12) of lifting is wholely set with the framework of steel reinforcement (13).
3. a kind of convenient precast stair of lifting according to claim 2, it is characterised in that: the precast stair ontology
(1) both ends are fixed on cast-in-situ stair platform (2), and precast stair ontology (1) length direction is wherein all set one or both ends
There is the fixed block (14) being provided projectingly, the cast-in-situ stair platform (2), which is equipped with to cooperate with the fixed block (14), to be arranged
Relief hole (21).
4. a kind of convenient precast stair of lifting according to claim 3, it is characterised in that: the fixed block (14) is vertical
Two sides side on direction is obliquely installed, and inclined direction is arranged away from the precast stair ontology (1)；And the fixed block
(14) it is equipped with the through hole (142) being obliquely installed, the cast-in-situ stair platform (2) is equipped with location hole (22), the positioning
The pilot pin (221) being detachably connected is inserted in hole (22), when the fixed block (14) be located at the relief hole (21) it is interior when,
The location hole (22) is coaxially set with the through hole (142).
5. a kind of convenient precast stair of lifting according to claim 4, it is characterised in that: the precast stair ontology
(1) it is located at its horizontal plane and is equipped with the limiting slot (15) being arranged in a mutually vertical manner, is respectively equipped in the limiting slot (15) detachable
Fixed levelling tube (151).
6. a kind of installation method for lifting convenient precast stair, convenient for installing a kind of lifting described in claim 5
Precast stair, it is characterised in that: comprise the steps of:
S1: measurement, unwrapping wire: after the completion of stair part Zhou Bianliang lifting, measure and talk out corresponding staircase component end and side control
Line processed；
S2: component is marched into the arena inspection: being carried out to precast stair ontology (1) and each piece fitment being located on precast stair ontology (1)
Quality examination；
S3: suspender installation: according to the formal character suspender of precast stair ontology (1), the hook of suspender end being hooked on hanging ring,
And low across the suspension hook and precast stair ontology (1) that connect tower crane by cucurbit；
S4: lifting, leveling: precast stair ontology (1) is lifted up by tower crane and from the ground height at least 20cm, adjust simultaneously
Keep the level of precast stair ontology (1)；
S5: handling: safety, the top that precast stair ontology (1) quickly, is smoothly hung to place in place；
S6: in place, adjustment: will wherein wherein one end end position is fixed precast stair ontology (1), and according to having released
Precast stair ontology (1) edge guarantees that precast stair ontology (1) two sides are precisely in place, adjusts and keep precast stair ontology (1)
Level；
S7: mortar is filled recessing groove (11)；
S8: it mends reserved opening: being filled up reserved opening using higher leveled mortar.
7. a kind of installation method for lifting convenient precast stair according to claim 6, it is characterised in that: the S4 and
Adjustment in S7 and the level for keeping precast stair ontology (1) are mutually perpendicular to by being located on the precast stair ontology (1)
What the levelling tube (151) in the limiting slot (15) of setting was realized.
8. a kind of installation method for lifting convenient precast stair according to claim 7, it is characterised in that: will before S8
After levelling tube (151) disassembles, and limiting slot (15) is filled by mortar.
9. according to a kind of installation method for the convenient precast stair of lifting that claim 8 is stated, it is characterised in that: completed in S4
Afterwards, it needs the fixed contraposition in position: precast stair ontology (1) being hung on cast-in-situ stair platform (2), and adjusts precast stair ontology
(1) position makes the fixed block (14) on precast stair ontology (1) and relief hole (21) phase interworking on cast-in-situ stair platform (2)
It closes.
10. a kind of installation method for lifting convenient precast stair according to claim 9, it is characterised in that: described solid
After determining block (14) and the relief hole (21) mutual cooperation, through hole (142) and location hole (22) are passed through by pilot pin (221)
It is fixed between precast stair ontology (1) and cast-in-situ stair platform (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811240283.1A CN109208835A (en) | 2018-10-23 | 2018-10-23 | It is a kind of to lift convenient precast stair and its installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811240283.1A CN109208835A (en) | 2018-10-23 | 2018-10-23 | It is a kind of to lift convenient precast stair and its installation method |
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| CN109208835A true CN109208835A (en) | 2019-01-15 |
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ID=64979874
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| CN201811240283.1A Pending CN109208835A (en) | 2018-10-23 | 2018-10-23 | It is a kind of to lift convenient precast stair and its installation method |
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| CN107800359A (en) * | 2017-10-31 | 2018-03-13 | 成都佰富隆精工机械有限公司 | A kind of mounting bracket of solar components |
| CN207700050U (en) * | 2018-01-03 | 2018-08-07 | 河北省交通规划设计院 | Convenient for the bearing of level monitoring |
| CN108581312A (en) * | 2018-01-24 | 2018-09-28 | 南通市中南建工设备安装有限公司 | A kind of angle steel rectangular flange welding universal mold |
| CN207812875U (en) * | 2018-01-25 | 2018-09-04 | 深圳机械院建筑设计有限公司 | Precast stair based on building industrialization |
| CN108411779A (en) * | 2018-04-03 | 2018-08-17 | 中交路桥建设有限公司 | A kind of construction method of Bridge guardrail reinforcing bar |
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Application publication date: 20190115 |