CN106836234B - Detachable connecting joint for concrete support of assembled foundation pit - Google Patents
Detachable connecting joint for concrete support of assembled foundation pit Download PDFInfo
- Publication number
- CN106836234B CN106836234B CN201710075864.3A CN201710075864A CN106836234B CN 106836234 B CN106836234 B CN 106836234B CN 201710075864 A CN201710075864 A CN 201710075864A CN 106836234 B CN106836234 B CN 106836234B
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- clamping
- concrete support
- steel clamp
- clamp body
- clamping part
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- 239000004567 concrete Substances 0.000 title claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 238000010276 construction Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 description 5
- 239000004566 building material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a detachable connecting joint for a concrete support of an assembly type foundation pit, which comprises a joint main body (2) and a fixing steel clamp, wherein a plurality of threaded rotary openings (7) are formed in the joint main body (2), the fixing steel clamp comprises a fixing steel clamp body (1), one end of the fixing steel clamp body (1) is provided with a threaded part (6) which is matched and connected with the threaded rotary openings (7) of the joint main body (2), the other end of the fixing steel clamp body is provided with a clamping part (9) and a clamping adjusting mechanism (3) which are used for clamping the end part of a concrete support (11), the clamping part (9) is composed of a plurality of clamping subsections, the clamping part (9) is arranged on the fixing steel clamp body (1) through the clamping adjusting mechanism (3), and the end part of the concrete support (11) is clamped and loosened through the clamping adjusting mechanism (. Compared with the prior art, the invention has the advantages of simple structure, safe operation, capability of improving the construction efficiency, increasing the repeatable utilization rate of the components and the like.
Description
Technical Field
The invention relates to the technical field of foundation pit engineering detachable enclosures, in particular to an assembly type detachable connection joint for a concrete support of a foundation pit.
Background
Along with the maturity of construction technology and engineering materials and the development and requirements of national recyclable economy, the existing foundation pit support needs to be manually dismantled and cleaned after the foundation pit construction is finished, on one hand, the waste of large manpower resources and building materials is caused, and in addition, the construction cost and the construction safety risk are greatly increased. At present, a more common supporting structure is formed by pouring reinforced concrete or a steel supporting structure is adopted, wherein the connection between beams of the concrete supporting structure is also a concrete structure, steel or concrete is required to be added in the construction process for improving the stress characteristic of the concrete supporting structure, and the steel or concrete supporting structure is required to be dismantled and cleaned after the construction is finished; the steel construction then adopts comparatively complicated fixed approach, and the bolt uses more, and is comparatively loaded down with trivial details in the work progress, consequently, has caused the waste on the human resource on the one hand, but on the other hand from cyclic utilization's angle, does not realize the high-efficient recycle of structure, also produces great influence to the time limit for a project of engineering.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the detachable connecting joint for the concrete support of the assembly type foundation pit, which has a simple structure and safe operation, can improve the construction efficiency and increase the reutilization rate of components.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an assembly type foundation ditch concrete support can dismantle attach fitting, includes joint main part and fixed steel clip, the joint main part on be equipped with a plurality of screw threads and revolve the mouth, fixed steel clip including fixed steel clip body, the one end of fixed steel clip body be equipped with be used for with the screw thread that connects the main part revolve mouthful accordant connection's screw thread portion, the other end is equipped with clamping part and the centre gripping adjustment mechanism that is used for centre gripping concrete support tip, the clamping part constitute by a plurality of centre gripping branches, the clamping part pass through centre gripping adjustment mechanism and set up on fixed steel clip body to support the tip through centre gripping adjustment mechanism centre gripping and unclamp the concrete support tip.
According to a preferable technical scheme, the clamping part consists of two clamping subsections which are arranged oppositely, the clamping adjusting mechanism comprises a sliding rail arranged on the fixed steel clamp body, linear racks respectively arranged on the clamping subsections and two adjusting screws respectively matched with the linear racks, each clamping subsection is connected with the sliding rail in a sliding mode, the two adjusting screws are connected with the fixed steel clamp body in a rotating mode and form a worm gear mechanism with the linear racks, the clamping subsections slide along the sliding rail by rotating the adjusting screws, the distance between the two clamping subsections is adjusted, and the concrete support end part is clamped and loosened.
According to the preferable technical scheme, the clamping part consists of two clamping subsections which are arranged oppositely, the clamping adjusting mechanism comprises a sliding rail, a linear rack and an adjusting screw matched with the linear rack, the sliding rail is arranged on the fixed steel clamp body, one clamping subsection is fixedly connected with the fixed steel clamp body, the other clamping subsection is slidably connected with the fixed steel clamp body through the sliding rail, the linear rack is arranged on the clamping subsection, the adjusting screw is rotatably connected with the fixed steel clamp body and forms a worm and gear mechanism with the linear rack, and the clamping subsections slide along the sliding rail by rotating the adjusting screw, so that the distance between the two clamping subsections is adjusted, and the concrete supporting end part is clamped and loosened.
As a preferable technical scheme, the worm gear mechanism is a self-locking worm gear mechanism.
The clamping adjusting mechanism enables the operations of clamping and loosening the support to be flexible and simple, and particularly when the clamping adjusting mechanism adopts a self-locking worm and gear mechanism, the operation is easier and safer.
Preferably, the clamping part is of an openable and closable cylindrical structure, and the cross section shape of the opening part is matched with that of the concrete support.
Preferably, the inner surface of the clamping part is provided with a rubber surrounding pad.
The rubber surrounding pad is used for playing a role in buffering and energy consumption in the service process, and the thickness of the rubber surrounding pad is selected to be consistent with that of the support.
As a preferable technical solution, the connection joint further comprises a clamping part auxiliary locking mechanism, the clamping part auxiliary locking mechanism comprises screw holes arranged on each clamping part, and in the use process, the clamping part keeps a locking state through screws arranged in the screw holes in a penetrating mode.
The use of the auxiliary locking mechanism of the clamping part can further enhance the reliability of clamping, and after the clamping part supports the bolt, the bolt is screwed to play a role in firmly clamping and supporting, so that the integral stability is ensured.
According to a preferable technical scheme, a fixing steel shaft which is used for being arranged in the concrete support in a penetrating mode and assisting in fixing the concrete support is further fixed at one end, provided with the clamping portion, of the fixing steel clamp body, and the fixing steel shaft is located among the clamping portions.
When the connecting joint is in service, the fixed steel shaft is inserted into a preformed hole at the end part of the support, and the support can be positioned and fixed. Steel high-strength materials can be adopted.
As a preferable technical scheme, the joint main body is spherical or polyhedral to adapt to different construction conditions, the number, the arrangement position and the depth of the screw thread screwing openings are determined according to construction conditions, the symmetrical arrangement rule is generally followed, and reinforcing bulges are arranged on the periphery of the screw thread screwing openings.
As the preferred technical scheme, the joint main body is a regular hexahedron, each surface is symmetrically provided with a threaded opening, and the periphery of the threaded opening is provided with a reinforcing protrusion.
Strengthen protruding intensity and rigidity loss that can reduce because the opening arouses, because strengthen protruding existence, can set to the fixed steel clamp main part one end that has screw thread portion and strengthen the concave shape that the arch matches, make the connection of fixed steel clamp and joint main part inseparabler firm.
The joint main body is made of solid steel materials, the outer surface of the joint main body is coated with an anticorrosive coating, and therefore the joint main body can be easily searched, checked and monitored in the service process by selecting a more obvious color.
The fixed steel clip is made of steel materials, the thread part is made of solid steel materials, and the outer surface of the fixed steel clip is coated with an anticorrosive coating to ensure that the steel clip plays a role in protection in the service process.
The working principle of the invention is as follows: the plurality of clamping subsections of the clamping part are opened or closed through the clamping adjusting mechanism, so that the concrete support is fixed or released. The fixed steel clip for clamping the concrete support can realize the connection of the concrete support by connecting the thread part on the joint main body.
Compared with the prior art, the detachable connecting joint can be conveniently and flexibly used in the construction process, can effectively improve the construction efficiency, and improves the mounting and dismounting speeds of the supporting structure, thereby saving the construction period, increasing the repeatable utilization rate of components, and saving building materials. In addition, the invention has the advantages of simple and understandable principle, convenient and safe operation and good use and popularization value.
Drawings
FIG. 1 is a schematic connection diagram of the present invention;
FIG. 2 is a schematic structural view of a fixing steel clip according to the present invention;
FIG. 3 is a schematic sectional view of the fixing clip according to the present invention;
FIG. 4 is a schematic configuration diagram of a grip adjusting mechanism in embodiment 1;
FIG. 5 is a schematic configuration diagram of a grip adjusting mechanism in embodiment 2;
FIG. 6 is a left side view of the clamping portion of the present invention;
FIG. 7 is a schematic structural view of a fitting body of the present invention;
fig. 8 is a schematic cross-sectional view of the joint body of the present invention.
In the figure, 1 is a fixed steel clip body, 2 is a joint main body, 3 is a clamping adjusting mechanism, 31 is a sliding rail, 32 is a linear rack, 33 is an adjusting screw rod, 4 is a screw hole, 5 is a fixed steel shaft, 6 is a screw thread part, 7 is a screw thread screwing port, 8 is a reinforcing protrusion, 9 is a clamping part, 91 is a clamping part, 10 is a rubber surrounding cushion, and 11 is a concrete support.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
The utility model provides an assembly type foundation ditch concrete support can dismantle attach fitting, as shown in fig. 1~3 and 7~8, including connecting main part 2 and fixed steel clip, it revolves mouthful 7 to be equipped with a plurality of screw threads in the joint main part 2, the fixed steel clip includes fixed steel clip body 1, the one end of fixed steel clip body 1 is equipped with and is used for revolving mouthful 7 accordant connection's screw thread portion 6 with the screw thread that connects main part 2, the other end is equipped with clamping part 9 and centre gripping adjustment mechanism 3 that are used for centre gripping concrete support 11 tip, clamping part 9 comprises a plurality of centre gripping subdivisions, clamping part 9 sets up on fixed steel clip body 1 through centre gripping adjustment mechanism 3, and support 11 tips with loosening through centre gripping adjustment mechanism 3 centre gripping.
Specifically, in the present embodiment, the clamping portion 9 is composed of two clamping subsections 91 which are oppositely arranged, as shown in fig. 4, the clamping adjustment mechanism 3 includes a sliding rail 31 which is arranged on the fixed steel clamp body 1, linear racks 32 which are respectively arranged on the clamping subsections 91, and two adjustment screws 33 which are respectively matched with the linear racks 32, each clamping subsection 91 is slidably connected with the sliding rail 31, the two adjustment screws 33 are both rotatably connected with the fixed steel clamp body 1, and constitute a worm gear mechanism with the linear racks 32, and in order to make the operation safer, the worm gear mechanism may adopt a self-locking worm gear mechanism. By rotating the adjusting screw 33, the gripping sections 91 slide along the sliding track 31, adjusting the distance between the two gripping sections 91, gripping and releasing the end of the concrete support 11.
The clamping part 9 is of an openable and closable tubular structure, the cross section shape of the opening part is matched with that of the concrete support 11, and the inner surface of the clamping part 9 is provided with a rubber surrounding pad 10, as shown in fig. 3. Optionally, in order to make the clamping more reliable, the connection joint further includes a clamping portion auxiliary locking mechanism, the clamping portion auxiliary locking mechanism includes screw holes 4 disposed on each clamping branch 91, and during use, the clamping portion 9 is kept in a locking state by screws penetrating through the screw holes 4, as shown in fig. 1-2 and fig. 6. For further positioning and fixing and supporting, a fixing steel shaft 5 for assisting in fixing the concrete support 11 is further fixed at one end of the fixing steel clamp body 1, where the clamping portion 9 is provided, and the fixing steel shaft 5 is located in the middle of the plurality of clamping subsections 91, as shown in fig. 1 to 3.
The joint main body 2 is spherical or polyhedral to adapt to different construction conditions, the number, the arrangement position and the depth of the threaded screw openings 7 are determined according to construction conditions, the symmetrical arrangement rule is generally followed, and reinforcing protrusions 8 are arranged on the periphery of the threaded screw openings 7. In this embodiment, as shown in fig. 7 to 8, the joint main body 2 is a regular hexahedron, each surface is symmetrically provided with a screw thread opening 7, the periphery of the screw thread opening 7 is provided with a reinforcing protrusion 8, and the vertical and horizontal supports can be connected through the joint main body 2.
The detachable connecting joint of the embodiment can be conveniently and flexibly used in the construction process, can effectively improve the construction efficiency, and improves the mounting and detaching speed of the supporting structure, thereby saving the construction period, increasing the repeated utilization rate of components and saving building materials. In addition, the invention has the advantages of simple and understandable principle, convenient and safe operation and good use and popularization value.
Example 2
The embodiment is substantially the same as embodiment 1, except that in this embodiment, as shown in fig. 5, the clamping portion 9 is composed of two clamping subsections 91 which are oppositely arranged, the clamping adjusting mechanism 3 comprises a sliding rail 31, a linear rack 32 and an adjusting screw 33 which is matched with the linear rack 32, the sliding rail 31 is arranged on the fixed steel clamp body 1, one clamping subsection 91 is fixedly connected with the fixed steel clamp body 1, the other clamping subsection 91 is slidably connected with the fixed steel clamp body 1 through the sliding rail 31, the linear rack 32 is arranged on the clamping subsection 91, the adjusting screw 33 is rotatably connected with the fixed steel clamp body 1 and forms a worm gear mechanism with the linear rack 32, by rotating the adjusting screw 33, the gripping sections 91 slide along the sliding track 31, adjusting the distance between the two gripping sections 91, gripping and releasing the end of the concrete support 11.
The detachable connecting joint of the embodiment can be conveniently and flexibly used in the construction process, can effectively improve the construction efficiency, and improves the mounting and detaching speed of the supporting structure, thereby saving the construction period, increasing the repeated utilization rate of components and saving building materials. In addition, the invention has the advantages of simple and understandable principle, convenient and safe operation and good use and popularization value.
Claims (10)
1. The detachable connecting joint for the concrete support of the assembly type foundation pit is characterized by comprising a joint main body (2) and a fixing steel clamp, wherein a plurality of threaded rotary openings (7) are formed in the joint main body (2), the fixing steel clamp comprises a fixing steel clamp body (1), one end of the fixing steel clamp body (1) is provided with a threaded part (6) which is used for being connected with the threaded rotary openings (7) of the joint main body (2) in a matched mode, the other end of the fixing steel clamp body is provided with a clamping part (9) and a clamping adjusting mechanism (3) which are used for clamping the end part of the concrete support (11), the clamping part (9) is composed of a plurality of clamping subsections, the clamping part (9) is arranged on the fixing steel clamp body (1) through the clamping adjusting mechanism (3), and the end part of the concrete support (11) is clamped and loosened through the clamping adjusting mechanism (3); the clamping part (9) consists of two clamping subsections (91) which are oppositely arranged, the clamping adjusting mechanism (3) comprises a sliding track (31) arranged on the fixed steel clamp body (1), linear racks (32) respectively arranged on the clamping subsections (91) and two adjusting screws (33) respectively matched with the linear racks (32), each clamping subsection (91) is in sliding connection with the sliding track (31), the two adjusting screws (33) are both in rotating connection with the fixed steel clamp body (1) and form a worm and gear mechanism with the linear racks (32), the clamping subsections (91) slide along the sliding track (31) by rotating the adjusting screws (33), the distance between the two clamping subsections (91) is adjusted, and the end part of the concrete support (11) is clamped and loosened;
the connecting joint further comprises a clamping part auxiliary locking mechanism, the clamping part auxiliary locking mechanism comprises screw holes (4) formed in each clamping branch part (91), and in the using process, the clamping part (9) keeps a locking state through screws penetrating through the screw holes (4);
one end of the fixed steel clamp body (1) provided with the clamping part (9) is also fixedly provided with a fixed steel shaft (5) which is arranged in the concrete support (11) in a penetrating way and used for assisting in fixing the concrete support (11), and the fixed steel shaft (5) is positioned among the plurality of clamping subsections (91);
the joint main body (2) is spherical or polyhedral to adapt to different construction conditions, the number, the arrangement position and the depth of the threaded screw openings (7) are determined according to construction conditions, the overall arrangement rule is symmetrical, and reinforcing protrusions (8) are arranged on the periphery of the threaded screw openings (7).
2. The detachable connection joint for the concrete support of the fabricated foundation pit as claimed in claim 1, wherein the worm gear mechanism is a self-locking worm gear mechanism.
3. The detachable connection joint for the concrete support of the fabricated foundation pit as claimed in claim 1, wherein the clamping part (9) is of an openable and closable cylindrical structure, and the cross-sectional shape of the opening part is matched with that of the concrete support (11).
4. The detachable connection joint for the concrete support of the fabricated foundation pit as claimed in claim 3, wherein the inner surface of the clamping part (9) is provided with a rubber surrounding pad (10).
5. The detachable connection joint for the concrete support of the assembly type foundation pit as claimed in claim 1, wherein the joint main body (2) is a regular hexahedron, each surface is symmetrically provided with a threaded opening (7), and the periphery of each threaded opening (7) is provided with a reinforcing protrusion (8).
6. The detachable connecting joint for the concrete support of the assembly type foundation pit is characterized by comprising a joint main body (2) and a fixing steel clamp, wherein a plurality of threaded rotary openings (7) are formed in the joint main body (2), the fixing steel clamp comprises a fixing steel clamp body (1), one end of the fixing steel clamp body (1) is provided with a threaded part (6) which is used for being connected with the threaded rotary openings (7) of the joint main body (2) in a matched mode, the other end of the fixing steel clamp body is provided with a clamping part (9) and a clamping adjusting mechanism (3) which are used for clamping the end part of the concrete support (11), the clamping part (9) is composed of a plurality of clamping subsections, the clamping part (9) is arranged on the fixing steel clamp body (1) through the clamping adjusting mechanism (3), and the end part of the concrete support (11) is clamped and loosened through the clamping adjusting mechanism (3); the clamping part (9) consists of two clamping subsections (91) which are oppositely arranged, the clamping adjusting mechanism (3) comprises a sliding track (31), a linear rack (32) and an adjusting screw rod (33) matched with the linear rack (32), the sliding track (31) is arranged on the fixed steel clamp body (1), one clamping subsection (91) is fixedly connected with the fixed steel clamp body (1), the other clamping subsection (91) is slidably connected with the fixed steel clamp body (1) through the sliding track (31), the linear rack (32) is arranged on the clamping subsection (91), the adjusting screw rod (33) is rotatably connected with the fixed steel clamp body (1) and forms a worm gear mechanism with the linear rack (32), and the clamping subsections (91) can slide along the sliding track (31) by rotating the adjusting screw rod (33), adjusting the distance between the two clamping sections (91) to clamp and release the ends of the concrete support (11);
the connecting joint further comprises a clamping part auxiliary locking mechanism, the clamping part auxiliary locking mechanism comprises screw holes (4) formed in each clamping branch part (91), and in the using process, the clamping part (9) keeps a locking state through screws penetrating through the screw holes (4);
one end of the fixed steel clamp body (1) provided with the clamping part (9) is also fixedly provided with a fixed steel shaft (5) which is arranged in the concrete support (11) in a penetrating way and used for assisting in fixing the concrete support (11), and the fixed steel shaft (5) is positioned among the plurality of clamping subsections (91);
the joint main body (2) is spherical or polyhedral to adapt to different construction conditions, the number, the arrangement position and the depth of the threaded screw openings (7) are determined according to construction conditions, the overall arrangement rule is symmetrical, and reinforcing protrusions (8) are arranged on the periphery of the threaded screw openings (7).
7. The detachable connection joint for the concrete support of the fabricated foundation pit as claimed in claim 6, wherein the worm gear mechanism is a self-locking worm gear mechanism.
8. The detachable connection joint for the concrete support of the fabricated foundation pit as claimed in claim 6, wherein the clamping part (9) is of an openable and closable cylindrical structure, and the cross section shape of the opening part is matched with that of the concrete support (11).
9. The detachable connection joint for the concrete support of the fabricated foundation pit as claimed in claim 8, wherein the inner surface of the clamping part (9) is provided with a rubber surrounding pad (10).
10. The detachable connection joint for the concrete support of the assembly type foundation pit as claimed in claim 6, wherein the joint main body (2) is a regular hexahedron, each surface is symmetrically provided with a threaded opening (7), and the periphery of each threaded opening (7) is provided with a reinforcing protrusion (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075864.3A CN106836234B (en) | 2017-02-13 | 2017-02-13 | Detachable connecting joint for concrete support of assembled foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075864.3A CN106836234B (en) | 2017-02-13 | 2017-02-13 | Detachable connecting joint for concrete support of assembled foundation pit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106836234A CN106836234A (en) | 2017-06-13 |
| CN106836234B true CN106836234B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710075864.3A Expired - Fee Related CN106836234B (en) | 2017-02-13 | 2017-02-13 | Detachable connecting joint for concrete support of assembled foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106836234B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629578B (en) * | 2019-01-22 | 2020-07-10 | 北京航天地基工程有限责任公司 | Composite deep foundation pit supporting structure based on assembly construction |
| CN111648379B (en) * | 2020-06-17 | 2023-05-09 | 王冰璇 | Combined board support structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2438863Y (en) * | 2000-07-27 | 2001-07-11 | 曾景昱 | Multi-way joint assembly of tubular support |
| CN201730198U (en) * | 2010-07-02 | 2011-02-02 | 刘睿 | Honeycomb-structure connecting piece for installing doubling plate |
| CN102102366A (en) * | 2011-01-17 | 2011-06-22 | 中建市政建设有限公司 | Adjustable steel support axial force pre-adding device and using method thereof |
| CN204530722U (en) * | 2015-03-26 | 2015-08-05 | 海南大学 | For the novel steel tube of pattern foundation pit supporting structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2145681Y (en) * | 1993-01-30 | 1993-11-10 | 贾鹏源 | Clyburn spanner |
| JP2603448B2 (en) * | 1994-12-15 | 1997-04-23 | 三興工機株式会社 | Supporting tools for civil engineering |
| CN202187431U (en) * | 2011-07-19 | 2012-04-11 | 浙江华铁建筑安全科技股份有限公司 | Adjustable support rod |
| CN205314608U (en) * | 2015-11-30 | 2016-06-15 | 天津市鑫福盛新型建筑模板有限公司 | Novel adjustable fixed connector |
-
2017
- 2017-02-13 CN CN201710075864.3A patent/CN106836234B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2438863Y (en) * | 2000-07-27 | 2001-07-11 | 曾景昱 | Multi-way joint assembly of tubular support |
| CN201730198U (en) * | 2010-07-02 | 2011-02-02 | 刘睿 | Honeycomb-structure connecting piece for installing doubling plate |
| CN102102366A (en) * | 2011-01-17 | 2011-06-22 | 中建市政建设有限公司 | Adjustable steel support axial force pre-adding device and using method thereof |
| CN204530722U (en) * | 2015-03-26 | 2015-08-05 | 海南大学 | For the novel steel tube of pattern foundation pit supporting structure |
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| CN106836234A (en) | 2017-06-13 |
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Granted publication date: 20200728 |