CN111764406A - Adjustable inhaul cable - Google Patents
Adjustable inhaul cable Download PDFInfo
- Publication number
- CN111764406A CN111764406A CN202010836414.3A CN202010836414A CN111764406A CN 111764406 A CN111764406 A CN 111764406A CN 202010836414 A CN202010836414 A CN 202010836414A CN 111764406 A CN111764406 A CN 111764406A
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- Prior art keywords
- connecting piece
- steel
- adjustable
- chain block
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 239000011378 shotcrete Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910001339 C alloy Inorganic materials 0.000 claims description 2
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 2
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 2
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 claims description 2
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010622 cold drawing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- 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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the technical field of machining, in particular to an adjustable inhaul cable which comprises a fixed bolt, a first connecting piece, a second connecting piece, a chain block and a lifting lug, wherein the lifting lug is welded on a steel support; the invention provides a stay cable with adjustable length and angle and suitable for a horizontal steel support of foundation pit support.
Description
Technical Field
The invention relates to the technical field of machining, in particular to an adjustable inhaul cable.
Background
In the construction process of the horizontal steel support of the foundation pit support, the horizontal steel support is easy to fall off, and great casualty accidents are caused. At present, a steel wire rope is generally adopted to fix a horizontal steel support, and the method is that one end of the steel wire rope is fixed on the wall of a foundation pit through a bolt, and the other end of the steel wire rope is fixed on the horizontal steel support.
Chinese patent publication No. CN207176694U, a bearing structure that encorbelments for foundation ditch steel shotcrete, discloses a bearing structure that encorbelments for foundation ditch steel shotcrete, and it includes: the upright piles are vertically arranged in the foundation pit and are vertical to the steel supports arranged in parallel; the steel connecting beam penetrates through the upright post pile, the middle part of the steel connecting beam is fixedly installed with the upright post pile, two ends of the steel connecting beam extend out of the upright post pile to form a cantilever structure, and the steel connecting beam is arranged below each steel support and transversely crossed with each steel support to support each steel support; and one end of each cable is fixedly connected with the part, positioned above the steel connecting beam, of the upright post pile, and the other end of each cable is respectively fixed at different positions on two cantilever ends of the steel connecting beam, so that the cables and the steel connecting beam form a cable-stayed suspension mode to realize cantilever support of the steel connecting beam. The utility model discloses a bearing structure encorbelments utilizes a plurality of zippers to be connected steel even roof beam and the lattice column on the stand stake fixed, can realize encorbelmenting of big length under the condition that does not increase the stand stake, forms reliable and stable support to more steel shotcrete.
However, after the horizontal steel support is axially pre-stressed, the initial length of the steel support increases; or the length of the horizontal steel support can be changed after the axial force is applied for the second time due to the deformation of the foundation pit and the loss of the axial force. In the process, the supporting structure is relatively fixed by the method provided by the prior art, so that the extension of the horizontal steel support is limited, and inconvenience and potential safety hazards are brought to the construction of the horizontal steel support.
Disclosure of Invention
Aiming at the problems, the invention discloses a stay cable with adjustable length and angle and suitable for a horizontal steel support of foundation pit support. This cable includes gim peg, first connecting piece, second connecting piece, chain block and lug, the lug welding is on the steel shotcrete, gim peg one end is fixed on the foundation pit wall, and the other end is connected first connecting piece, the second connecting piece is connected the lug, chain block connect in first connecting piece with between the second connecting piece.
The chain block is a common double-hook inverted chain block in the prior art. The invention adopts the chain block to realize the manual adjustment of the stay cable when the length of the steel support is changed, and the specific method comprises the following steps: the tightness of the adjustable inhaul cable can be adjusted by pulling the chain block, the supporting length is changed, when the length of the inhaul cable needs to be reduced, the hand chain and the hand chain wheel of the chain block are pulled clockwise, and the length of the inhaul cable is reduced; when the length of the stay cable needs to be increased, the chain block of the chain block is pulled anticlockwise, the brake seat is separated from the brake block, the ratchet wheel is static under the action of the pawl, the five-tooth long shaft drives the lifting chain wheel to move in the opposite direction, and the length of the stay cable is increased.
Preferably, the fixing bolt and the first connecting piece, the first connecting piece and the chain block, the chain block and the second connecting piece, the second connecting piece and the lifting lug are connected in a hooking manner.
The invention skillfully utilizes the hooking to realize the change of the angle of the stay cable after the length of the steel support is changed. Specifically, when the guy cable needs to be adjusted due to the change of the length of the steel support, the angle between the guy cable and the horizontal plane can be adaptively changed in the process of adjusting the chain block in a hooking mode.
Preferably, the fixing bolt is in an L shape, one side of the fixing bolt is fixed on the wall of the foundation pit, and the other side of the fixing bolt is provided with a through hole for connecting the first connecting piece.
Preferably, the first connecting piece and the second connecting piece are both
The two ends of the first connecting piece are respectively provided with a hook and a hanging ring, and the hook of the first connecting piece is hooked on the through hole of the fixing bolt; the hook of the second connecting piece is hooked on the lifting lug, and the upper hook and the lower hook of the chain block are respectively hooked on the first connecting piece and the hanging ring of the second connecting piece.
Preferably, the lifting device further comprises a friction cushion block, wherein the friction cushion block is arranged at the joint of the fixing bolt and the first connecting piece, and/or the first connecting piece and the chain block, and/or the chain block and the second connecting piece, and/or the second connecting piece and the lifting lug.
The friction cushion block can increase the friction force of each connecting part and avoid unnecessary sliding in the process of adjusting the length.
Preferably, the friction cushion block comprises an alloy layer, a silica gel layer and a frosted layer from inside to outside.
By adopting the friction cushion block provided by the invention, on one hand, the friction force of each connecting part can be increased; on the other hand, wear of the connecting parts can be avoided.
Preferably, the alloy of the alloy layer comprises one or more of aluminum alloy, ferromanganese, iron-carbon alloy and silicon-iron alloy.
Preferably, the grit Ra of the frosted layer is 2.5-6.1 μm; the sand mesh of the frosted layer is too small, so that the stay cable is easy to slide when being stretched; the sand mesh of the frosting layer is too large, and the stretching of the stay cable is laborious.
Preferably, the steel bracket is connected with the foundation pit wall, and the steel support can be placed on the steel bracket.
Preferably, the steel bracket further comprises a steel purlin, and the steel purlin is arranged on the steel bracket.
Compared with the prior art, the invention has the following advantages or beneficial effects: the invention provides an adjustable stay cable for a horizontal steel support of a foundation pit support, which can change along with the length change of the steel support and can be repeatedly constructed, thereby being safe and economic.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a schematic view of an adjustable cable structure according to the present invention;
FIG. 2 is a schematic structural view of a chain block with an adjustable cable according to the present invention;
FIG. 3 is a schematic view of an adjustable cable installation according to the present invention.
Reference numerals: 1. bolt, 2, gim peg, 3, first connecting piece, 4, chain block, 5, second connecting piece, 6, lug, 7, foundation pit wall, 8, steel shotcrete, 9, steel purlin, 10, steel bracket.
Detailed Description
Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described herein in detail. Such variations do not affect the essence of the present invention and are not described herein.
In the description of the present application, it is to be understood that the terms "upper", "lower", "outer", "inner", "front", "rear", "vertical", "horizontal" and "upper" are based on the orientation or positional relationship shown in the drawings and are used merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present application.
In the description of the present application, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
As shown in fig. 1, an adjustable inhaul cable is shown, and comprises a bolt 1, a fixing bolt 2, a first connecting piece 3, a chain block 4, a second connecting piece 5, a lifting lug 6, a foundation pit wall 7, a steel support 8, a steel purlin 9 and a steel corbel 10. The lug 6 welds on steel shotcrete 8, and 2 one ends of gim peg are fixed on basic pit wall 7 through bolt 1, and first connecting piece 3 is connected to the other end, and lug 6 is connected to second connecting piece 5, and chain block 4 is connected between first connecting piece 3 and second connecting piece 5. The bolt 1 is an M20 expansion bolt, and the fixing bolt 2 can be stably fixed to the foundation pit wall 7 by the bolt 1. The connecting modes of the fixing bolt 2 and the first connecting piece 3, the first connecting piece 3 and the chain block 4, the chain block 4 and the second connecting piece 5, and the second connecting piece 5 and the lifting lug 6 are all hooked. A steel bracket 10 is attached to the foundation pit wall 7 and a steel brace 8 may be placed on the steel bracket 10. The steel purlin 9 is arranged on the steel bracket 10.
In this embodiment, the fixing bolt 2 is an L100 × 100 × 10mm equilateral angle steel, holes for connecting the bolt 1 and the first connecting member 3 are respectively formed in two edges of the angle steel, the holes are symmetrically formed and arranged at the geometric center of each edge, 1 position is formed on each edge, one edge is connected with the bolt 1, the other edge is connected with the first connecting member 3, and the hole in the connecting position is slightly larger than the outer diameter of a rod piece to be connected.
In the embodiment, the first connecting piece 3 is formed by processing three-level round steel with the diameter of 18mm without cold drawing and is shaped into
The length of the hook is 700mm, one end of the hook is bent into a 180-degree hook, the bending diameter is 5 times of the diameter of the steel bar, the length of the straight section of the hook is 80mm, the other end of the hook is bent into a hanging ring, the hanging ring is welded with the straight section of the steel bar, and the inner diameter of the hanging ring is 80 mm.
In the embodiment, the second connecting piece 5 is formed by processing three-level round steel with the diameter of 18mm without cold drawing and is shaped into
The length of the hook is 700mm, one end of the hook is bent into a 180-degree hook, the bending diameter is 5 times of the diameter of the steel bar, the length of the straight section of the hook is 80mm, the other end of the hook is bent into a hanging ring, the hanging ring is welded with the straight section of the steel bar, and the inner diameter of the hanging ring is 80 mm. One end of the lifting device is connected with the chain block 4, and the other end is connected with the lifting lug 6.
In this embodiment, lifting lug 6 adopts Q235B steel sheet, and thickness 8mm, length 120mm, and height 120mm opens the round hole on the steel sheet, and the round hole is located the steel sheet centre, and round hole diameter is 50 mm.
In this embodiment, the adjustable cable further includes a friction pad not shown in the drawing, and the friction pad is disposed at the connection between the fixing bolt 2 and the first connecting member 3, the connection between the first connecting member 3 and the chain block 4, the connection between the chain block 4 and the second connecting member 5, and the connection between the second connecting member 5 and the lifting lug 6. Specifically, the friction pad is sleeved on the fixing bolt 2, the first connecting piece 3, the chain block 4, the second connecting piece 5 and the lifting lug 6. The friction cushion block comprises an aluminum alloy layer, a silica gel layer and a frosting layer from inside to outside. The grit Ra of the sanded layer was 3.5. mu.m. The friction pad has the following advantages: 1. the friction force of each connecting part can be increased, and unnecessary sliding in the length adjusting process is avoided; 2. abrasion of the connecting parts can be avoided; 3. the friction force is ensured, and the labor is saved when the inhaul cable is stretched.
As shown in fig. 2, a chain block of the adjustable cable is shown, the chain block 4 is a double-hook chain block with a chain block of a chain shape, two ends of the chain block are connected with the first connecting piece 3 and the second connecting piece 5, and the tightness of the adjustable cable can be adjusted by pulling the chain block to chain block.
The invention will be further explained in connection with the use of the adjustable cable of the invention.
As shown in fig. 3, which shows an installation schematic diagram of an adjustable cable, the adjustable cable provided by the invention is installed on both the left side and the right side of a horizontal steel support.
During the first installation, the hand chain wheel that drags chain block clockwise rotates, and the cable is taut, and horizontal steel supports and stabilizes between two left and right cables. Meanwhile, the connection modes of the fixing bolt and the first connecting piece, the first connecting piece and the chain block, the chain block and the second connecting piece, and the second connecting piece and the lifting lug are all hooked, so that the angle can be finely adjusted at each connecting part when the chain block is adjusted, and the whole inhaul cable is in a linear state. In addition, the friction gasket can effectively avoid the adjustment range of the first connecting piece, the chain block and the second connecting piece, and the stability of the inhaul cable is improved.
When the horizontal steel support is axially pre-stressed, the initial length of the steel support increases. An operator pulls the chain block of the chain block anticlockwise, the brake seat is separated from the brake pad, the ratchet wheel is static under the action of the pawl, the five-tooth long shaft drives the hoisting chain wheel to move in the opposite direction, and the length of the stay cable is increased. Meanwhile, the connection modes of the fixing bolt and the first connecting piece, the first connecting piece and the chain block, the chain block and the second connecting piece, and the second connecting piece and the lifting lug are all hooked, so that the angle can be finely adjusted at each connecting part when the chain block is adjusted, and the whole inhaul cable is in a linear state. In addition, the friction gasket can effectively avoid the adjustment range of the first connecting piece, the chain block and the second connecting piece, and the stability of the inhaul cable is improved.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (10)
1. The utility model provides a cable with adjustable is applicable to excavation supporting's horizontal steel shotcrete, its characterized in that, including gim peg, first connecting piece, second connecting piece, chain block and lug, the lug welding is on the steel shotcrete, gim peg one end is fixed on the foundation pit wall, and the other end is connected first connecting piece, the second connecting piece is connected the lug, chain block connect in first connecting piece with between the second connecting piece.
2. The adjustable inhaul cable of claim 1, wherein the fixing bolt is connected with the first connecting piece, the first connecting piece is connected with the chain block, the chain block is connected with the second connecting piece, and the second connecting piece is connected with the lifting lug in a hooking manner.
3. The adjustable inhaul cable as claimed in claim 1, wherein the fixing bolt is "L" shaped, one side of the fixing bolt is fixed on the foundation pit wall, and the other side of the fixing bolt is provided with a through hole for connecting the first connecting piece.
4. The adjustable inhaul cable as claimed in claim 3, wherein the first connecting piece and the second connecting piece are respectively provided with a hook and a hanging ring at two ends, and the hook of the first connecting piece is hooked on the through hole of the fixing bolt; the hook of the second connecting piece is hooked on the lifting lug, and the upper hook and the lower hook of the chain block are respectively hooked on the first connecting piece and the hanging ring of the second connecting piece.
5. The adjustable inhaul cable according to any one of claims 2 to 4, further comprising a friction cushion block, wherein the friction cushion block is arranged at the joint of the fixing bolt and the first connecting piece, and/or the first connecting piece and the chain block, and/or the chain block and the second connecting piece, and/or the second connecting piece and the lifting lug.
6. The adjustable tension cable of claim 5 wherein the friction pad comprises an alloy layer, a silicone layer and a frosted layer from inside to outside.
7. The adjustable inhaul cable of claim 5, wherein the alloy of the alloy layer comprises one or more of aluminum alloy, ferromanganese, iron-carbon alloy and silicon-iron alloy.
8. The adjustable stay cable as claimed in claim 5, wherein the frosted layer has a grit Ra of 2.5 to 6.1 μm.
9. The adjustable bracing cable according to claim 1, further comprising a steel bracket connected to the foundation pit wall, the steel brace being positionable on the steel bracket.
10. The adjustable inhaul cable of claim 9, further comprising a steel purlin, wherein the steel purlin is disposed on the steel corbel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836414.3A CN111764406A (en) | 2020-08-19 | 2020-08-19 | Adjustable inhaul cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836414.3A CN111764406A (en) | 2020-08-19 | 2020-08-19 | Adjustable inhaul cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111764406A true CN111764406A (en) | 2020-10-13 |
Family
ID=72729794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010836414.3A Pending CN111764406A (en) | 2020-08-19 | 2020-08-19 | Adjustable inhaul cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111764406A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673366A (en) * | 2022-05-10 | 2022-06-28 | 陕西建工机械施工集团有限公司 | Sectional steel beam high-altitude bracket-free sectional butt joint installation method |
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2020
- 2020-08-19 CN CN202010836414.3A patent/CN111764406A/en active Pending
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114673366A (en) * | 2022-05-10 | 2022-06-28 | 陕西建工机械施工集团有限公司 | Sectional steel beam high-altitude bracket-free sectional butt joint installation method |
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