CN209637204U - Step fastener - Google Patents
Step fastener Download PDFInfo
- Publication number
- CN209637204U CN209637204U CN201822067071.XU CN201822067071U CN209637204U CN 209637204 U CN209637204 U CN 209637204U CN 201822067071 U CN201822067071 U CN 201822067071U CN 209637204 U CN209637204 U CN 209637204U
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- straight
- bar
- movable chuck
- hole
- 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.)
- Expired - Fee Related
Links
- 230000008961 swelling Effects 0.000 claims abstract description 6
- 238000009416 shuttering Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides a kind of step fastener, it include hook kelly and movable chuck, the hook kelly includes to be provided with pothook on straight-bar and straight-bar, it is characterized by: the movable chuck is triangular shaped, movable chuck is interconnected to constitute by three pieces of connecting plates, three pieces of connecting plates are respectively the first connecting plate, second connecting plate and third connecting plate, through-hole is provided on first connecting plate and the second connecting plate, and first the junction of connecting plate and the second connecting plate be arranged downward, the straight-bar sliding is threaded through in two through-holes, swelling hole is formed between the through-hole and straight-bar.The utility model provides a kind of movable chuck structure and is not easy to loosen or deform, is more durable and to the stronger step fastener of shuttering supporting.
Description
Technical field
The utility model relates to a kind of step fasteners.
Background technique
It is substantially all in present building construction as frame structure, in major project, wall beam casting concrete to demoulding
Period, usually using this fixture fixed form of step fastener, to guarantee that wall beam template is able to bear concrete initial set, final set, temperature
The extruding thrust of degree deformation etc. is without more significantly loosening or deforming.The step fastener of the prior art includes hook kelly
And movable chuck, the through-hole for being socketed on hook kelly, the hook kelly are provided on the movable chuck
Include the pothook being bent to form, active card head end is tapped using hand hammer, it is made to move through through-hole towards pothook
Self-locking function brought by gap grips template between hook kelly, or is struck using hand hammer to the movable chuck other end
It hits, the impact elasticity using vibration and hand hammer makes its release.
But the step fastener of the prior art, movable chuck are the steel card that middle part has curved arc, are easy under template passage
It deforms, scrap, it is difficult to take out, and be easy to cause to loosen due to deformation that template is made to lose support, cause the accident.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of movable chuck structure and is not easy to loosen or deform, more
It is durable and to the stronger step fastener of shuttering supporting.
To achieve the above object, the utility model provides a kind of step fastener, includes hook kelly and movable chuck,
The hook kelly includes that pothook is provided on straight-bar and straight-bar, and the movable chuck is triangular shaped, active card
Head is interconnected to constitute by three pieces of connecting plates, and three pieces of connecting plates are respectively the first connecting plate, the second connecting plate and third
Connecting plate is provided with through-hole, and the company of the first connecting plate and the second connecting plate on first connecting plate and the second connecting plate
The place of connecing is arranged downward, and the straight-bar sliding is threaded through in two through-holes, and swelling hole is formed between the through-hole and straight-bar.
By adopting the above technical scheme the advantages of, is: being provided with through-hole on first connecting plate and the second connecting plate, institute
It states and is formed with swelling hole between through-hole and straight-bar, active card head end is tapped using hand hammer, keeps it mobile towards pothook and leads to
It crosses self-locking function brought by swelling hole between through-hole and hook kelly and grips template, or using hand hammer to movable chuck
The other end taps, and the impact elasticity using vibration and hand hammer makes its release.Due to the movable chuck be it is triangular shaped simultaneously
And compared with prior art, lead to triangular support structure, movable chuck is not easy to loosen or deform, more durable and to shuttering supporting
Stronger step fastener.
The utility model can be further arranged to: being provided with mounting plate at described straight-bar one end, be arranged on the mounting plate
There is the mounting hole with straight-bar cooperation socket, the pothook is two, and is separately positioned on mounting plate two sides close to mounting hole, two
A pothook is arranged downward.
By being further arranged, multiple step fasteners are used together when gripping to template, adjacent step fastener its
Cross bar can be threaded through in mounting hole, by the setting of mounting hole, multiple step fasteners in the function of not influencing respectively to grip,
And can be mating between each other, entirety is formed, in the case where wherein tightly damaging or loosening step by step, adjacent two
A step fastener mating with it provides support to it, avoids unexpected generation.
The utility model can be further arranged to: the size of the mounting hole is inserted into for movable chuck interference and is clamped.
By being further arranged, when movable chuck is inlaid in mounting hole, movable chuck and mounting hole are formed and are interference fitted,
The through-hole that can be protruded between three connecting plates of movable chuck when taking-up carries out percussion taking-up to the second connecting plate, deepens two steps
While cooperation between step is tight, interference is not formed between each other.
The utility model can be further arranged to: first connecting plate and the angle of the second connecting plate junction are at 16 degree
To between 18 degree.
By being further arranged, the first connecting plate and the angle of the second connecting plate junction are smaller, reduce third connecting plate
Length saves material, and it is stronger to be in support effect when between 16 to 18 degree.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model embodiment；
Fig. 2 is the cooperation schematic diagram of straight-bar and movable chuck in the utility model embodiment；
Fig. 3 is the implementation diagram of the utility model embodiment.
Specific embodiment
A kind of embodiment of step fastener of the utility model is as shown in Figs. 1-3: a kind of step fastener, include hook kelly 1 with
And movable chuck 2, the hook kelly 1 include that pothook 12 is provided on straight-bar 11 and straight-bar, the movable chuck 2 is
Triangular shaped, movable chuck 2 is interconnected to constitute by three pieces of connecting plates, and three pieces of connecting plates are respectively the first connecting plate
21, through-hole is provided on the second connecting plate 22 and third connecting plate 23, first connecting plate 21 and the second connecting plate 22
24, and the junction of the first connecting plate 21 and the second connecting plate 22 is arranged downward, the sliding of straight-bar 11 is threaded through two through-holes
In 24, swelling hole 25 is formed between the through-hole 24 and straight-bar 11.It is provided with mounting plate 13 at described 11 one end of straight-bar, it is described
The mounting hole 131 with the cooperation socket of straight-bar 11 is provided on mounting plate 13, the pothook 12 is two, and is separately positioned on peace
13 two sides of loading board are arranged downward close to mounting hole 131, two pothooks 12.The size of the mounting hole 131 is for active card
First 2 interference insertion clamping.The step fastener that Fig. 3 show 4 the utility model in the present embodiment is held in template 3 to wall beam
Fixed schematic diagram.
Above example, only one kind of the utility model preferably specific example, those skilled in the art are practical new at this
The usual variations and alternatives carried out in type technical proposal scope are included in the protection scope of the utility model.
Claims (4)
1. a kind of step fastener, includes hook kelly and movable chuck, the hook kelly includes on straight-bar and straight-bar
Be provided with pothook, it is characterised in that: the movable chuck be it is triangular shaped, movable chuck is connected with each other by three pieces of connecting plates
Constitute, three pieces of connecting plates are respectively the first connecting plate, the second connecting plate and third connecting plate, first connecting plate with
Through-hole is provided on second connecting plate, and the junction of the first connecting plate and the second connecting plate is arranged downward, the straight-bar is sliding
It is dynamic to be threaded through in two through-holes, swelling hole is formed between the through-hole and straight-bar.
2. step fastener according to claim 1, it is characterised in that: be provided with mounting plate, the peace at described straight-bar one end
The mounting hole with straight-bar cooperation socket is provided in loading board, the pothook is two, and is separately positioned on mounting plate two sides and leans on
Nearly mounting hole, two pothooks are arranged downward.
3. step fastener according to claim 2, it is characterised in that: the size of the mounting hole is inserted for movable chuck interference
Enter clamping.
4. step fastener according to claim 1 or 2 or 3, it is characterised in that: first connecting plate and the second connecting plate connect
The angle at place is connect between 16 degree to 18 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067071.XU CN209637204U (en) | 2018-12-10 | 2018-12-10 | Step fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067071.XU CN209637204U (en) | 2018-12-10 | 2018-12-10 | Step fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209637204U true CN209637204U (en) | 2019-11-15 |
Family
ID=68474310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822067071.XU Expired - Fee Related CN209637204U (en) | 2018-12-10 | 2018-12-10 | Step fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209637204U (en) |
-
2018
- 2018-12-10 CN CN201822067071.XU patent/CN209637204U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 |