CN203357662U - Special protective device for anchor pocket at end part of first expanding concrete slab pre-stressed steel - Google Patents
Special protective device for anchor pocket at end part of first expanding concrete slab pre-stressed steel Download PDFInfo
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- CN203357662U CN203357662U CN 201320451356 CN201320451356U CN203357662U CN 203357662 U CN203357662 U CN 203357662U CN 201320451356 CN201320451356 CN 201320451356 CN 201320451356 U CN201320451356 U CN 201320451356U CN 203357662 U CN203357662 U CN 203357662U
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- packing ring
- protective device
- anchor recess
- built
- gasket
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Abstract
The utility model creates and provides a special protective device for an anchor pocket at an end part of a first expanding concrete slab pre-stressed steel. The protective device comprises a built-in gasket, an anchor pocket head, and an external gasket, wherein the built-in gasket is a hollow tube, annular bulges are arranged at the outer edge of one end of the built-in gasket, the anchor pocket head is of a hollow tubular structure, the outer wall of the anchor pocket head is provided with a first step and a second step, the first step is higher than the second step, the external gasket is also of a hollow tubular structure, the built-in gasket is put in the anchor pocket head, and the external gasket is sheathed on the second step of the anchor pocket head. According to the protective device, purposes of sealing, reducing vibration, preventing cracks and meeting the requirement of the standard of the appearance of a concrete member are realized, in production of the concrete member, the joint of the pre-stressed steel is sealed and does not leak slurry, vibration force transferred to the pre-stressed steel is reduced in vibration, the produced concrete member has good anchor pockets, and has no cracks, so that the durability of the concrete slab is improved.
Description
Technical field
The invention relates to the deformed bar field, particularly a kind of protective device of first opening concrete slab deformed bar end anchor recess that is exclusively used in.
Background technology
In the production of pre-tensioned prestressing concrete component, concrete solidifying is the process of the retrude that first rises, and the variation that deflects of concrete component easily is subject to the restriction of anchor recess head and cracks; When first opening concrete component and putting, concrete is subject to the prestressing force constraint can prolong the presstressed reinforcing steel direction to bounce back, and now the end anchor cave-head of presstressed reinforcing steel can stop its retraction, can crack at this position equally.This just needs a kind of protection structure, carrys out the generation of Crack prevention.
Summary of the invention
The problem that the invention will solve is in pre-tensioned prestressing concrete component solidification process, avoids the crackle on concrete to produce.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: a kind of protective device of first opening concrete slab deformed bar end anchor recess that is exclusively used in, comprise built-in packing ring, anchor recess head and external packing ring, described built-in packing ring is hollow tube, and the outer rim of one end is with annular projection; The tubular structure that described anchor recess head is a hollow, its outer wall is provided with first step and second step, described first step is higher than described second step, and the diameter of interior the first cavity of pipe that described first step is corresponding also is greater than the diameter of the second cavity in the corresponding pipe of described second step; Described external packing ring is also the tubular structure of hollow; Described built-in packing ring is placed on described anchor recess head inside, and its annular projection is stuck in described the first cavity and the excessive step place formed of the second cavity, and described external gasket sleeve is on the second step of described anchor recess head.
Preferably, the outer wall of the second step of described anchor recess head is provided with some groove marks or depression or projection, to increase frictional force.
Preferably, the circular cone structure that described external packing ring is hollow.
Preferably, described external packing ring is straight tube-like.
Preferably, described anchor recess head is made by rigid material.
Preferably, on described first cavity inner wall of described anchor recess head with annular recess.
Advantage and good effect that the invention has are: the invention can realize the purpose of sealing, vibration damping, Anti-cracking and concrete component outward appearance standard.After using this anchor recess protective device; when concrete component is produced, slurry is not revealed in sealing presstressed reinforcing steel connection place; reduce the power of the vibrating transmission to deformed bar while vibrating; elastic washer absorbs the deformational stress of concrete component; the concrete component anchor recess of producing is intact; do not have crackle to produce, improved the durability of concrete slab.
The accompanying drawing explanation
Fig. 1 is the structural representation of the invention;
Fig. 2 is the side view of the invention;
Fig. 3 is the structural representation of built-in packing ring in the invention;
Fig. 4 is the side view of built-in packing ring in the invention;
Fig. 5 is the structural representation of anchor recess head in the invention;
Fig. 6 is the side view of anchor recess head in the invention;
Fig. 7 is the structural representation of external packing ring in the invention;
Fig. 8 is the side view of external packing ring in the invention.
The specific embodiment
Below in conjunction with the drawings and the specific embodiments, the invention is described further.
As shown in Figures 1 to 8, the invention comprises built-in packing ring 1, anchor recess head 2 and external packing ring 3, and described built-in packing ring 1 is hollow tube, and the outer rim of one end is with annular projection; The tubular structure that described anchor recess head 2 is a hollow, its outer wall is provided with first step and second step, described first step is higher than described second step, in pipe corresponding to described first step, the diameter of the first cavity also is greater than the diameter of the second cavity in the corresponding pipe of described second step, on described the first cavity inner wall with annular recess; Described external packing ring 3 is also the tubular structure of hollow; Described built-in packing ring 1 is placed on described anchor recess head 2 inside, and its annular projection is stuck in described the first cavity and the excessive step place formed of the second cavity, and described external packing ring 3 is enclosed within on the second step of described anchor recess head 2.
The outer wall of the second step of described anchor recess head 2 is provided with some groove marks or depression or projection, to increase frictional force.
The circular cone structure that described external packing ring 3 is hollow.
Described anchor recess head 2 is made by rigid material, guarantees that it has enough intensity and rigidity.
The invention is assemblied in production and first opens on the steel mould side board of concrete component, corresponding one by one with the presstressed reinforcing steel position.The first step of anchor recess head 2 is inlayed or is adopted other mechanical systems to be fixed on steel mould side board, its inner groove can so that with being connected of punching block, second step gos deep into concrete, its surface ratio is more coarse, so that fastening with described external packing ring 3.The material of described built-in packing ring 1 need guarantee that it has enough elasticity.
The presstressed reinforcing steel coupling arrangement of first opening concrete component will pass in the middle of described built-in packing ring 1.When casting concrete, described built-in packing ring 1 can play the effect of sealing, guarantees that cement mortar does not outflow; When vibrating, described built-in packing ring 1 can slow down the shake of punching block and the infringement that displacement causes presstressed reinforcing steel.
Described anchor recess head 2, in the knockout course of concrete component, can reduce and avoid concrete setting to directly the bonding of presstressed reinforcing steel end coupling arrangement, and facilitates disassembling of presstressed reinforcing steel coupling arrangement; After the demoulding, can guarantee that the anchor recess neat appearance of concrete component end is attractive in appearance.
Described external packing ring 3 has certain taper, and when conveniently stripped, described anchor recess head 2 breaks away from concrete.The thickness of described external packing ring 3 and material guarantee enough to absorb the impact of concrete component contraction distortion on the anchor recess head.Described external packing ring 3 needs closely connected anchor recess head 2 outer walls and steel mould side board inwalls, after the demoulding if any with concrete binding, can from concrete, take out and reuse.
The invention has realized first opening the complete flawless of concrete slab, has realized first opening concrete slab and the bridge tunnel durability with the life-span.
Above embodiment has been described in detail the invention, but described content is only the preferred embodiment of the invention, can not be considered to for limiting the practical range of the invention.All equalization variations of doing according to the invention application range and improvement etc., within all should still belonging to the patent covering scope of the invention.
Claims (6)
1. one kind is exclusively used in the protective device of first opening concrete slab deformed bar end anchor recess, it is characterized in that: comprise built-in packing ring (1), anchor recess head (2) and external packing ring (3), described built-in packing ring (1) is hollow tube, and the outer rim of one end is with annular projection; The tubular structure that described anchor recess head (2) is a hollow, its outer wall is provided with first step and second step, described first step is higher than described second step, and the diameter of interior the first cavity of pipe that described first step is corresponding also is greater than the diameter of the second cavity in the corresponding pipe of described second step; Described external packing ring (3) is also the tubular structure of hollow; Described built-in packing ring (1) is placed on described anchor recess head (2) inside, and its annular projection is stuck in described the first cavity and the excessive step place formed of the second cavity, and described external packing ring (3) is enclosed within on the second step of described anchor recess head (2).
2. protective device according to claim 1, it is characterized in that: the outer wall of the second step of described anchor recess head (2) is provided with some groove marks or depression or projection, to increase frictional force.
3. protective device according to claim 1 and 2, it is characterized in that: described external packing ring (3) is the circular cone structure of hollow.
4. protective device according to claim 1 and 2 is characterized in that: described external packing ring (3) is straight tube-like.
5. protective device according to claim 1 and 2, it is characterized in that: described anchor recess head (2) is made by rigid material.
6. protective device according to claim 1 and 2 is characterized in that: on described first cavity inner wall of described anchor recess head (2) with annular recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320451356 CN203357662U (en) | 2013-07-26 | 2013-07-26 | Special protective device for anchor pocket at end part of first expanding concrete slab pre-stressed steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320451356 CN203357662U (en) | 2013-07-26 | 2013-07-26 | Special protective device for anchor pocket at end part of first expanding concrete slab pre-stressed steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203357662U true CN203357662U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320451356 Expired - Lifetime CN203357662U (en) | 2013-07-26 | 2013-07-26 | Special protective device for anchor pocket at end part of first expanding concrete slab pre-stressed steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203357662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975981A (en) * | 2020-07-28 | 2020-11-24 | 南京钜力智能制造技术研究院有限公司 | Prefabricated part, and tensioning device and tensioning method for end part of prefabricated part |
-
2013
- 2013-07-26 CN CN 201320451356 patent/CN203357662U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975981A (en) * | 2020-07-28 | 2020-11-24 | 南京钜力智能制造技术研究院有限公司 | Prefabricated part, and tensioning device and tensioning method for end part of prefabricated part |
| WO2022021523A1 (en) * | 2020-07-28 | 2022-02-03 | 南京钜力智能制造技术研究院有限公司 | Prefabricated component, end tensioning device of prefabricated component, and tensioning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN SILVERY DRAGON PRESTRESSED MATERIALS CO., Free format text: FORMER OWNER: XIE HUIZONG Effective date: 20140404 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 062453 CANGZHOU, HEBEI PROVINCE TO: 300400 BEICHEN, TIANJIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140404 Address after: 300400 Tianjin City, Beichen economic and Technological Development Zone Industrial Park Road No. 62 dual Shuangjiang Patentee after: SILVERY DRAGON PRESTRESSED MATERIALS Co.,Ltd. TIANJIN Address before: 062453, Hebei City, Cangzhou Province Hejian north stone groove Development Zone Patentee before: Xie Huizong |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200226 Address after: 062450 Xing Cun Xiang Guo Zhao Zhuang Cun, Hejian City, Cangzhou City, Hebei Province Patentee after: HEJIAN YINLONG TRACK Co.,Ltd. Address before: 300400 Tianjin City, Beichen economic and Technological Development Zone Industrial Park Road No. 62 dual Shuangjiang Patentee before: SILVERY DRAGON PRESTRESSED MATERIALS Co.,Ltd. TIANJIN |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |