CN212897600U - Step tightening device for building construction - Google Patents
Step tightening device for building construction Download PDFInfo
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- CN212897600U CN212897600U CN202021425294.XU CN202021425294U CN212897600U CN 212897600 U CN212897600 U CN 212897600U CN 202021425294 U CN202021425294 U CN 202021425294U CN 212897600 U CN212897600 U CN 212897600U
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- kelly
- clamping rod
- friction
- friction cover
- building construction
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Abstract
The utility model provides a construction is tight with step by step, be the kelly of the form of buckling including one end to and have the movable kelly in suit hole, in the downthehole friction cover that inlays of suit, the slip suit of friction cover in on the kelly, and for the one end of kelly form of buckling is provided with detachable anti-drop subassembly in the other end of kelly. Construction step by step tight, through at the downthehole nested friction cover of suit, the activity kelly slides through the friction cover promptly and locates on the kelly, wearing and tearing can not appear in the use in the activity kelly, improved the life of activity kelly, and when the friction cover friction seriously and unsatisfied operation requirement alone change the friction cover can, and the cost of changing the friction cover is far less than the activity kelly, consequently reduced the cost in the work progress. In addition, can prevent because of step by step tightly when not using through setting up anti-drop subassembly, the activity kelly drops from the kelly and loses the phenomenon and take place.
Description
Technical Field
The utility model relates to a building engineering construction technical field, in particular to construction is tight with step.
Background
In the concrete construction process, formwork support is often needed, step tightening is the most common tool in the building construction process, and the step tightening is simple in structure, flexible, easy to use, labor-saving, efficiency-increasing, strong in adaptability, and capable of being used for beam column formwork support. The step tightening device with the existing structure generally comprises a clamping rod with a hook-shaped end and a movable clamping rod, wherein a sleeving hole is formed in the movable clamping rod, the movable clamping rod can slide along the length direction of the clamping rod through the sleeving hole, the movable clamping rod only needs to be knocked when the device is used, and the template can be clamped by forming self-locking through a minimum gap between the sleeving hole and the clamping rod.
Step by step tightly in long-term use, the suit hole can often receive wearing and tearing, when wearing and tearing are serious, because the clearance increase between suit hole and the kelly, will lose the auto-lock effect this moment, often be the activity kelly of renewal again among the prior art, because step by step tightly use quantity great in the engineering, the activity kelly of total renewal can lead to construction cost to increase by a wide margin, does not satisfy the requirement of the construction saving type society that the country advocated simultaneously yet.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a construction is with step tightly to can improve the life cycle of activity kelly, and have better result of use.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a construction is with step tightly, is the kelly of form of buckling including one end to and have the activity kelly in suit hole, in the downthehole friction cover that inlays of suit, the slip suit of friction cover in on the kelly, and for the one end of the form of buckling of kelly, in the other end of kelly is provided with detachable anti-drop subassembly.
Furthermore, a notch for shrinkage deformation is formed on the friction sleeve.
Furthermore, the movable clamping rod is formed by bending a steel bar section.
Furthermore, the cross section of the clamping rod is I-shaped.
Furthermore, a beating part is fixedly connected to the movable clamping rod.
Further, the beating part comprises a disc welded on the movable clamping rod.
Furthermore, friction stripes are formed on the beating surface of the disc.
Compared with the prior art, the utility model discloses following advantage has:
(1) construction step by step tight, through at the downthehole nested friction cover of suit, the activity kelly slides through the friction cover promptly and locates on the kelly, wearing and tearing can not appear in the use in the activity kelly, improved the life of activity kelly, and when the friction cover friction seriously and unsatisfied operation requirement alone change the friction cover can, and the cost of changing the friction cover is far less than the activity kelly, consequently reduced the cost in the work progress. In addition, can prevent because of step by step tightly when not using through setting up anti-drop subassembly, the activity kelly drops from the kelly and loses the phenomenon and take place.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic view of a step-by-step structure for building construction according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a schematic structural view of a movable clamping rod according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a friction sleeve according to an embodiment of the present invention;
description of reference numerals:
1-clamping rod, 2-movable clamping rod, 201-sleeving hole, 3-friction sleeve, 4-notch, 5-anti-falling component, 6-welding column and 7-disc.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The embodiment relates to a step tightening device for building construction, which is shown in a figure 1 and a figure 2-4, and comprises a clamping rod 1 with one bent end and a movable clamping rod 2 with a sleeving hole 201, wherein a friction sleeve 3 is embedded in the sleeving hole 201, and the friction sleeve 3 is sleeved on the clamping rod 1 in a sliding manner. Through set up friction sleeve 3 in suit hole 201 in this embodiment, and then wear out when friction sleeve 3 serious back direct with friction sleeve 3 change can, avoided suit hole 201 directly suit on kelly 1 and the movable kelly 2 that leads to must wholly change not enough.
In order to avoid that the stress exceeds the yield strength when the clamping rod 1 is used and severe plastic deformation is formed to influence the clamping effect, the cross section of the clamping rod 1 is in an I shape in the embodiment, so that the structural strength of the clamping rod 1 is improved. The movable clamping rod 2 in the embodiment is formed by bending the steel bar sections, and the steel bar sections are adopted for manufacturing, so that local materials can be conveniently obtained, and the manufacturing cost is lower. Simultaneously, in order to facilitate beating movable kelly 2 in order to realize the clamp of template, it beats the portion to link firmly on movable kelly 2 in this embodiment, should beat the portion and include to weld disc 7 on movable kelly 2 via welding post 6 to be formed with the friction stripe that is not shown in the figure on the face of beating of disc 7, beat the portion and then can be convenient for constructor hard through setting up, take place to sideslip when preventing to beat.
When the movable clamping rod is used in construction, the hook-shaped end of the clamping rod 1 is hooked on a formwork batten on one side, then the movable clamping rod 2 is moved to abut against a formwork batten on the other opposite side, and then the hammering beating part enables the movable clamping rod to move inwards. The movable clamping rod inclines under the elastic force action of the formwork batten and the movable clamping rod system, and the clearance between the friction sleeve 3 and the clamping rod 1 is extremely small, so that the movable clamping rod 2 and the clamping rod 1 form self-locking, the self-locking capability is enough to resist the expansion force generated after the formwork batten is stressed, the movable clamping rod 2 cannot be ejected, the clamping of the formwork batten is completed, and the movable clamping rod 2 is tightened when the movable clamping rod is knocked inwards. When the die needs to be disassembled, the tail end of the movable clamping rod (the end of the movable clamping rod 2 with the sleeving hole 201) is hammered again, the movable clamping rod is loosened by using vibration and impact elasticity of the small hammer, and the movable clamping rod is forcefully disassembled again, so that the movable clamping rod cannot be knocked with brute force to prevent the movable clamping rod from being knocked more and more tightly.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a construction is tight with step, is the kelly of buckling form including one end to and have the activity kelly of suit hole, its characterized in that: a friction sleeve is embedded in the sleeving hole and sleeved on the clamping rod in a sliding manner; and a detachable anti-falling component is arranged at the other end of the clamping rod relative to the bent end of the clamping rod.
2. The step fastener for building construction according to claim 1, characterized in that: and a notch which is subjected to shrinkage deformation is formed on the friction sleeve.
3. The step fastener for building construction according to claim 1, characterized in that: the movable clamping rod is formed by bending a steel bar section.
4. The step fastener for building construction according to claim 2, characterized in that: the cross section of the clamping rod is I-shaped.
5. The step fastener for building construction according to any one of claims 1 to 4, characterized in that: the movable clamping rod is fixedly connected with a beating part.
6. The step fastener for building construction according to claim 5, characterized in that: the beating part comprises a disc welded on the movable clamping rod.
7. The step fastener for building construction according to claim 6, characterized in that: and friction stripes are formed on the beating surface of the disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425294.XU CN212897600U (en) | 2020-07-20 | 2020-07-20 | Step tightening device for building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425294.XU CN212897600U (en) | 2020-07-20 | 2020-07-20 | Step tightening device for building construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212897600U true CN212897600U (en) | 2021-04-06 |
Family
ID=75288946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021425294.XU Active CN212897600U (en) | 2020-07-20 | 2020-07-20 | Step tightening device for building construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212897600U (en) |
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2020
- 2020-07-20 CN CN202021425294.XU patent/CN212897600U/en active Active
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