CN113006370A - Adjustable stop device of joist - Google Patents
Adjustable stop device of joist Download PDFInfo
- Publication number
- CN113006370A CN113006370A CN202110344707.4A CN202110344707A CN113006370A CN 113006370 A CN113006370 A CN 113006370A CN 202110344707 A CN202110344707 A CN 202110344707A CN 113006370 A CN113006370 A CN 113006370A
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- Prior art keywords
- limiting
- adjustable
- channel
- joist
- supporting
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- 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
-
- 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
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
-
- 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
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B2001/2466—Details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses an adjustable limiting device of a joist, belonging to the technical field of auxiliary equipment of a support frame, comprising: the two channel-section steels and a plurality of adjusting part, two the channel-section steel sets up relatively, each adjusting part all sets up two between the channel-section steel, each adjusting part's both ends respectively with two the channel-section steel is connected. The joist bracket can change the clear distance between the channel steels by adjusting the adjusting component, thereby realizing the universality of joist of 48 systems and 60 systems, the two channel steels can be detachably assembled, and can be conveniently detached according to requirements, and the joist bracket can be repeatedly used and has strong popularization.
Description
Technical Field
The invention relates to the technical field of support frame auxiliary equipment, in particular to an adjustable limiting device for a supporting beam.
Background
The popularization of the assembly type concept enables a traditional steel pipe fastener supporting system to be gradually replaced by a disc buckle type support, the support frame adopts a joist which is an important form for reducing the using amount of the support frame and avoiding the roof from being jacked back under the joist, the support frame is particularly suitable for erecting a high formwork with the height exceeding 8m, the distance between local vertical rods can be increased, and the steel content is obviously reduced.
The existing joist mostly adopts the aluminium roof beam and end plate to weld, or use the bolted connection of the fixed sleeve, make the clear distance between the double-spliced joist fix, the double-spliced aluminium roof beam because of welding, does not have reusability at the same time, and also have shortcomings such as being inconvenient of bulky, transportation, storage and field use, etc., the existing joist is because the clear distance is fixed in addition, only suitable for a pole setting system, and two kinds of specifications are different only in the clear distance, make it is difficult to distinguish, use; meanwhile, in the field use process, because constructors are difficult to distinguish, confusion is easy to occur, the working efficiency is low, and even the joist adaptive to the 60 system and the vertical rod of the 48 system are mixed for use, the top of the supporting system is greatly shaken, the slipping phenomenon is easy to occur, and the safety is difficult to ensure.
Disclosure of Invention
The clear distance that exists to the channel-section steel of current support frame is fixed, the above-mentioned problem that intelligence satisfied a pole setting system aims at providing an adjustable stop device of joist now, through adjusting part, can change the clear distance between the channel-section steel to realize 48 systems and 60 systems's the general of joist, demountable assembly between two channel-section steels, and can conveniently dismantle as required, repeatedly usable, popularization nature are strong.
The specific technical scheme is as follows:
an adjustable stop device of joist includes:
the two channel steels are oppositely arranged;
a plurality of adjusting part, each adjusting part all sets up two between the channel-section steel, each adjusting part's both ends respectively with two the channel-section steel is connected, each adjusting part all includes:
two ends of the anchoring connecting piece penetrate through the two channel steels respectively, and are detachably connected with the two channel steels respectively;
the anchor connecting piece is characterized by comprising a limiting sleeve and a limiting gasket, wherein the limiting sleeve and the limiting gasket are respectively sleeved on the anchor connecting piece, one end of the limiting sleeve extends into the limiting gasket, and the limiting sleeve is in limiting fit with the limiting gasket.
The adjustable limiting device for the supporting beam is characterized in that one end of the limiting sleeve is provided with a plurality of first grooves, first through holes are formed in the limiting gaskets, a plurality of first convex blocks are correspondingly arranged in the first through holes and located in the same plane, each first convex block is in limiting fit with the first grooves respectively, and the other end of the limiting sleeve is abutted to the channel steel.
The adjustable stop device of foretell joist wherein, still includes: the two ends of each anchoring connecting piece are respectively provided with a first thread part, and the two ends of each anchoring connecting piece are respectively fixedly connected with the channel steel detachably through a plurality of fastening nuts.
In the adjustable supporting beam limiting device, the cross section of each first groove is in a U-shaped arrangement.
In the adjustable limiting device for the supporting beam, the cross section of each first bump is U-shaped, and the width of each first bump is the same as that of one first groove.
The adjustable limiting device for the supporting beam is characterized in that a plurality of supporting vertical rods are further arranged between the two channel steel bodies, and the two channel steel bodies are respectively in clamping fit with the supporting vertical rods through a plurality of adjusting assemblies.
The adjustable limiting device for the supporting beam is characterized in that every two adjacent supporting vertical rods are connected through a first pull rod, and two ends of each first pull rod are fixedly connected with the two adjacent supporting vertical rods in a detachable mode.
The adjustable limiting device for the supporting beam is characterized in that each supporting vertical rod is fixedly provided with a connecting disc, and two ends of each first pull rod are connected with two adjacent connecting discs respectively.
The adjustable limiting device for the supporting beam is characterized in that the number of the first grooves is two, and the two first grooves are symmetrically arranged at one end of the limiting sleeve.
The adjustable limiting device for the supporting beam is characterized in that the number of the first convex blocks is two, and the two first convex blocks are symmetrically arranged in the first through hole.
Compared with the prior art, the technical scheme has the positive effects that:
(1) the invention has simple structure, the parts are assembled in a detachable way, the assembly and disassembly are convenient, the parts are not limited by the ribbed beams in the engineering use, the distance between the bottom layer upright posts is increased, and the secondary erection is also realized, thereby saving the cost;
(2) the invention adopts an assembly type concept, is convenient and easy to construct and adjust, can be flexibly adjusted according to the field condition, can be used as a joist or a main keel in a supporting system by using two channel steels, can fully utilize the supporting advantages of the disc buckle vertical rod and has strong flexibility;
(3) the clear distance between the two channel steels is adjustable, two joist beams of a 48 system and a 60 system in the existing market can be met, meanwhile, the clear distance between the two channel steels is controlled within a certain range of an adaptive system, the danger of shaking and slipping can be avoided, and the safety is guaranteed.
Drawings
FIG. 1 is a front view of an adjustable stop device for a joist of the present invention;
FIG. 2 is a top view of an adjustable stop device for a joist of the present invention;
FIG. 3 is a front view of a limiting sleeve of an adjustable beam limiting device of the present invention;
FIG. 4 is a top view of a limiting sleeve of an adjustable beam limiting device according to the present invention;
FIG. 5 is a front view of a spacing washer of the adjustable spacing device of the joist of the present invention;
FIG. 6 is a top view of a spacing pad of an adjustable spacing device of a joist of the present invention;
FIG. 7 is a schematic diagram of a limiting sleeve and a limiting gasket of the adjustable limiting device for a joist, which are in built-in fit;
fig. 8 is a schematic diagram of the external matching of the limiting sleeve and the limiting gasket of the adjustable limiting device for the joist.
In the drawings: 1. channel steel; 2. an adjustment assembly; 3. an anchor connection; 4. a limiting sleeve; 401. a first bevel; 5. a limiting gasket; 501. a first through hole; 502. a first bump; 6. fastening a nut; 7. supporting the upright stanchion; 701. a connecting disc; 702. a bolt; 8. a first pull rod.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a front view of an adjustable stop device for a joist, fig. 2 is a top view of the adjustable stop device for the joist, fig. 3 is a front view of a stop sleeve of the adjustable stop device for the joist, fig. 4 is a top view of a stop sleeve of the adjustable stop device for the joist, fig. 5 is a front view of a stop washer of the adjustable stop device for the joist, fig. 6 is a top view of a stop washer of the adjustable stop device for the joist, fig. 7 is a schematic diagram of the adjustable stop device for the joist when the stop sleeve and the stop washer are externally fitted, fig. 8 is a schematic diagram of the adjustable stop device for the joist when the stop sleeve and the stop washer are internally fitted, as shown in fig. 1, a preferred embodiment of the adjustable stop device for the joist is shown, and comprises: two channel-section steels 1 and a plurality of adjusting part 2, two channel-section steels 1 set up relatively, and each adjusting part 2 all sets up between two channel-section steels 1, and each adjusting part 2's both ends are connected with two channel-section steels 1 respectively, and each adjusting part 2 all includes: an anchoring connecting piece 3, a limiting sleeve 4 and a limiting gasket 5, wherein two ends of the anchoring connecting piece 3 respectively penetrate through the two channel steels 1, and two ends of the anchoring connecting piece 3 are respectively detachably connected with the two channel steels 1, the limiting sleeve 4 and the limiting gasket 5 are respectively sleeved on the anchoring connecting piece 3, the limiting gasket 5 is arranged at one end of the limiting sleeve 4, the other end of the limiting sleeve 4 is abutted against a channel steel 1, one end of the limiting sleeve 4 is provided with a plurality of first bevels 401, a first through hole 501 is arranged on the limiting gasket 5, a plurality of first lugs 502 are correspondingly arranged in the first through hole 501, each first lug 502 is positioned in the same plane, and one end of the plurality of first bumps 502 far away from the limiting gasket 5 forms a first virtual cylinder, the length of the radius of the first virtual cylinder is smaller than that of the inner diameter of the limiting sleeve 4, and each first bump 502 is operationally matched with a corresponding first groove 401 in a limiting way.
Further, as a preferred embodiment, an adjustable stop device of joist still includes: a plurality of fastening nuts 6, the both ends of each anchor connecting piece 3 are provided with first screw thread portion respectively, and the both ends of each anchor connecting piece 3 are respectively through a plurality of fastening nuts 6 and two channel-section steels 1 detachably fixed connection.
The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, please refer to fig. 1 to 8, the cross section of each first bevel 401 is U-shaped.
Further, as a preferred embodiment, the cross section of each first bump 502 is "U", and the width of each first bump 502 is equal to the width of each first groove 401.
Furthermore, as a preferred embodiment, a plurality of supporting vertical rods 7 are further disposed between the two channel steel 1, and the two channel steel 1 is in clamping fit with each supporting vertical rod 7 through a plurality of adjusting components 2.
When the supporting upright stanchions 7 need to be moved, the fastening nuts 6 at the two ends of the anchoring connecting piece 3 are loosened, and after the two channel steel 1 clamp the supporting upright stanchions 7, the supporting upright stanchions 7 can be moved between the two channel steel 1, thereby achieving the purpose of adjusting the distance between the supporting upright stanchions 7.
Further, as a preferred embodiment, a first pull rod 8 is disposed between each two adjacent supporting vertical rods 7, one end of each first pull rod 8 is detachably and fixedly connected with one corresponding supporting vertical rod 7, and the other end of each first pull rod 8 is detachably and fixedly connected with the other corresponding supporting vertical rod 7.
Further, as a preferred embodiment, each supporting upright 7 is fixedly provided with a connecting disc 701, one end of the first pull rod 8 is connected with the connecting disc 701 corresponding to one supporting upright 7 through a pin 702 in a pin manner, and the other end of the first pull rod 8 is connected with the connecting disc 701 corresponding to the other supporting upright 7 through another pin 702 in a pin manner.
As a preferred embodiment, the number of the first grooves 401 and the first protrusions 502 is two, the two first grooves 401 are symmetrically arranged at one end of the spacing sleeve 4, the two first protrusions 502 are symmetrically arranged in the first through hole 501, the length of each channel steel 1 is 1650mm, the outer diameter of the spacing gasket 5 is 60mm, the wall thickness of each channel steel is 10mm, the length of the spacing sleeve 4 is 55mm, the outer diameter of each channel steel is 33mm, and the wall thickness of each channel steel is 2.3mm, the first through hole 501 is arranged at the center of the spacing gasket 5, and the diameter of the first through hole 501 is 36mm, the width of the two first bumps 502 symmetrically arranged in the first through hole 501 is 12mm, the height thereof is 10mm, the width of the two first grooves 401 arranged at one end of the limiting sleeve 4 is 12mm, the height thereof is 10mm, and the limiting sleeve 4 and the limiting gasket 5 have two built-in and external combination modes, as shown in fig. 7, the built-in combination mode is realized by the following steps: two first grooves 401 on the limiting sleeve 4 are aligned to two first convex blocks 502 arranged on the limiting gasket 5 by rotating the limiting sleeve 4, the limiting gasket 5 can fall to the depth of the first grooves 401 along the axial direction of the limiting sleeve 4 due to the fact that the size and the shape of the two first convex blocks 502 are matched with the size and the shape of the two first grooves 401, the two first convex blocks 502 are in limiting fit with the two first grooves 401, the clear distance between two channel steel 1 in a built-in combination mode is 55mm, and the limiting gasket is suitable for 48-system vertical rods; as shown in fig. 8, the implementation process of the external combination mode is as follows: through rotating the limiting sleeve 4, the two first bumps 502 are located at positions which are not aligned with the two first grooves 401, the limiting gasket 5 cannot fall along the axis direction of the limiting sleeve 4, the limiting gasket 5 abuts against one end of the limiting sleeve 4, the clear distance between the two channel steel 1 in the external combination mode is 65mm, and the external combination mode is adaptive to a 60-system vertical rod.
The invention has simple structure, the components are assembled in a detachable way, the assembly and disassembly are convenient, the components are not limited by the ribbed beams in the engineering use, the distance between the bottom layer upright posts is increased, and the secondary erection is also realized, thereby saving the cost.
The invention adopts an assembly type concept, is convenient and easy to construct and adjust, can be flexibly adjusted according to the field condition, can use the two channel steel 1 as a joist or a main keel in a supporting system, can fully utilize the supporting advantages of the disc buckle vertical rod and has strong flexibility.
The clear distance between the two channel steel 1 is adjustable, two joist of 48 systems and 60 systems in the existing market can be met, meanwhile, the clear distance between the two channel steel 1 is controlled within a certain range of an adaptive system, the danger of shaking and slipping can be avoided, and the safety is guaranteed.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an adjustable stop device of joist which characterized in that includes:
the two channel steels are oppositely arranged;
a plurality of adjusting part, each adjusting part all sets up two between the channel-section steel, each adjusting part's both ends respectively with two the channel-section steel is connected, each adjusting part all includes:
two ends of the anchoring connecting piece penetrate through the two channel steels respectively, and are detachably connected with the two channel steels respectively;
the anchor connecting piece is characterized by comprising a limiting sleeve and a limiting gasket, wherein the limiting sleeve and the limiting gasket are respectively sleeved on the anchor connecting piece, one end of the limiting sleeve extends into the limiting gasket, and the limiting sleeve is in limiting fit with the limiting gasket.
2. The adjustable limiting device for the joist according to claim 1, wherein one end of the limiting sleeve is provided with a plurality of first grooves, the limiting pad is provided with a first through hole, a plurality of first protrusions are correspondingly arranged in the first through hole, the first protrusions are located in the same plane, each first protrusion is in limit fit with the first groove, and the other end of the limiting sleeve abuts against one of the channel steels.
3. The adjustable stop device of claim 1, further comprising: the two ends of each anchoring connecting piece are respectively provided with a first thread part, and the two ends of each anchoring connecting piece are respectively fixedly connected with the channel steel detachably through a plurality of fastening nuts.
4. The adjustable supporting beam limiting device as claimed in claim 2, wherein each of the first grooves has a "U" shaped cross section.
5. The adjustable supporting beam limiting device as claimed in claim 2, wherein each of the first protrusions has a "U" cross section, and a width of each of the first protrusions is the same as a width of one of the first grooves.
6. The adjustable supporting beam limiting device as claimed in claim 1, wherein a plurality of supporting uprights are further disposed between the two channel steels, and the two channel steels are respectively in clamping fit with each supporting upright through a plurality of adjusting assemblies.
7. The adjustable supporting beam limiting device as claimed in claim 6, wherein each two adjacent supporting vertical rods are connected by a first pull rod, and two ends of each first pull rod are detachably and fixedly connected with two adjacent supporting vertical rods.
8. The adjustable limiting device for the joist as claimed in claim 7, wherein each of the supporting uprights is fixedly provided with a connecting plate, and two ends of each of the first pull rods are respectively connected with two adjacent connecting plates.
9. The adjustable limiting device for the joist according to claim 2, wherein the number of the first grooves is two, and the two first grooves are symmetrically arranged at one end of the limiting sleeve.
10. The adjustable limiting device for the joist according to claim 2, wherein the number of the first protrusions is two, and the two first protrusions are symmetrically arranged in the first through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110344707.4A CN113006370A (en) | 2021-03-31 | 2021-03-31 | Adjustable stop device of joist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110344707.4A CN113006370A (en) | 2021-03-31 | 2021-03-31 | Adjustable stop device of joist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113006370A true CN113006370A (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110344707.4A Pending CN113006370A (en) | 2021-03-31 | 2021-03-31 | Adjustable stop device of joist |
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| CN (1) | CN113006370A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262957A (en) * | 2022-07-19 | 2022-11-01 | 中建三局集团有限公司 | Double-layer concrete structural slab supporting system and construction method |
-
2021
- 2021-03-31 CN CN202110344707.4A patent/CN113006370A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262957A (en) * | 2022-07-19 | 2022-11-01 | 中建三局集团有限公司 | Double-layer concrete structural slab supporting system and construction method |
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