CN201534501U - Pre-buried type channel - Google Patents
Pre-buried type channel Download PDFInfo
- Publication number
- CN201534501U CN201534501U CN2009201729437U CN200920172943U CN201534501U CN 201534501 U CN201534501 U CN 201534501U CN 2009201729437 U CN2009201729437 U CN 2009201729437U CN 200920172943 U CN200920172943 U CN 200920172943U CN 201534501 U CN201534501 U CN 201534501U
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- China
- Prior art keywords
- chute
- holdfast
- built
- type
- type conduit
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a pre-buried type channel, which comprises anchors and a chute. The cross section of the chute is of a concave shape with an opening towards one direction, a shape similar to C type steel, but two sides of the opening are respectively provided with a pawl for fixing a T-shaped bolt; and a plurality of ground anchors are fixed on the top of the chute at certain intervals. The utility model can be used for hanging the contact net and the bridge system, and has the advantages of simple construction process, long service life, low impact of the external environment, excellent tensile and shear performance and high safety factor. The mechanical and dynamic properties of the utility model are verified by national laboratories. Therefore, the utility model has good value in technical promotion.
Description
Technical field
The utility model relates to a kind of built-in type conduit, relates in particular to a kind ofly to be combined by holdfast and chute, can be used for realizing hanging the built-in type conduit of contact system, belongs to technical field of fastening.
Background technology
Concrete construction crab-bolt (hereinafter to be referred as crab-bolt) is a kind of building fastener commonly used, is widely used in all field of civil engineering such as building, road, bridge, subway, water conservancy and nuclear station.Distinguish from anchoring principle and mounting means, crab-bolt roughly can be divided into intumescent, back cut type, chemical bonding type.
Intumescent crab-bolt and back cut type crab-bolt belong to same series products.Their advantage is easy for installation, and shortcoming is that expansion stress is concentrated, because the zone of swelling area is quite limited, generally be no more than the sectional area of crab-bolt, so range of use is very restricted.Based on the defective of intumescent and back cut type building anchor bolt, chemical anchor bolts have obtained using widely.Chemical anchor bolts are a kind of novel fastener products, are made up of chemical bonding agent and metallic rod body.During use,, the metallic rod body gluing is fixed in the concrete substrate boring, to realize anchorage effect to connecting element by the purpose made chemical bonding agent.At present, the anchorage style of contact system generally adopts chemical anchor bolts in railway tunnel, but there is following shortcoming in chemical anchor bolts:
Chemical anchor bolts fire-resistant, resistance to elevated temperatures is poor, later period maintenance expense height;
2. the chemical anchor bolts force way is that point is stressed, and stress performance instability, the quality in the construction be cannot say for sure to demonstrate,prove;
3. stress point is many when the later stage contact system is installed, the progress that restriction contact system and crane span structure are installed.
At the deficiency of chemical anchor bolts fastening means, people have worked out a kind of later-model tightening technology-built-in type conduit.According to relevant railway expert research, for the high speed railway (railway line for passenger traffic) of speed per hour more than 200 kilometers, contact system seat board in its tunnel adopts the pre-buried connection mode of chute to substitute traditional chemical anchor bolts fastening means, not only can optimize construction technology, shorten the construction period, and can improve switching performance, improve the serviceability of contact system.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of later-model built-in type conduit.This built-in type conduit is combined by holdfast and chute, can be used for realizing rigid suspension catenary, effectively avoids the fastening potential safety hazard of bringing of chemical anchor bolts.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of built-in type conduit comprises holdfast and chute two parts, it is characterized in that:
The cross-sectional plane of described chute is " recessed " font towards side's opening, is to be beneficial to the fixedly ratchet of tommyhead bolt in the both sides of opening part;
Described holdfast has a plurality of, and the certain fixed distance of each interval is at the top of described chute.
Wherein, described holdfast is " I " font, and flats is fixed on the top of chute in the mode of crust welding.
Perhaps, described holdfast is cylindrical, and the ring-type stage body is arranged at top, bottom, is fixed on the top of chute in the mode of crust welding.
Perhaps, the top of described chute has round hole, the shaft diameter of the diameter in described round hole and described holdfast is suitable, diameter less than described ring-type stage body, holdfast passes described round hole, described ring-type stage body fixes in the position in described round hole, and fixing as a whole in the mode of combination of inner and outside welding, the top of described holdfast is bolted with the ring bodies of a slightly larger in diameter.
Built-in type conduit provided by the utility model has following advantage:
1. fire-resistant and high temperature resistant, tenure of use is long, and the later stage need not maintenance;
2. adopt the welding manner global formation, itself tension, shear behavior are good;
3. easy construction can improve the job schedule that crane span structure is installed and contact system is installed greatly.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 (a) is the cutaway view of first embodiment of this built-in type conduit, and Fig. 1 (b) is the front view of first embodiment of this built-in type conduit;
Fig. 2 (a) is the cutaway view of second embodiment of this built-in type conduit, and Fig. 2 (b) is the front view of second embodiment of this built-in type conduit;
Fig. 3 (a) is the cutaway view of the 3rd embodiment of this built-in type conduit, and Fig. 3 (b) is the front view of the 3rd embodiment of this built-in type conduit;
Fig. 4 (a) is the cutaway view of the 4th embodiment of this built-in type conduit, and Fig. 4 (b) is the front view of the 4th embodiment of this built-in type conduit.
The specific embodiment
Built-in type conduit provided by the utility model is made of holdfast and chute two parts, and wherein the cross-sectional plane of chute is " recessed " font towards side's opening, similar C shaped steel.Both sides at the opening part of chute are to be beneficial to the fixedly ratchet of tommyhead bolt, and are more firm when making it fixedly.Holdfast can have multiple shape, for example " I " font or cylindrical etc.This holdfast has a plurality of, and the distance that each interval is certain is weldingly fixed on the top of chute.It is emphasized that the just fragment of this built-in type conduit that Fig. 1 (b)～Fig. 4 (b) shows.In practice, the length of this built-in type conduit is relevant with the length of crane span structure or contact system, does not have concrete restriction.
Fig. 1 (a) and Fig. 1 (b) have shown first embodiment of this built-in type conduit.Fig. 2 (a) and Fig. 2 (b) have shown second embodiment of this built-in type conduit.In these two embodiment, holdfast is " I " font, and flats is fixed on the top of chute in the mode of crust welding.Difference is that two holdfast installation directions among the embodiment are orthogonal.
Fig. 3 (a) and Fig. 3 (b) have shown the 3rd embodiment of this built-in type conduit.Fig. 4 (a) and Fig. 4 (b) have shown the 4th embodiment of this built-in type conduit.In these two embodiment, employed holdfast is cylindrical, and the ring-type stage body is arranged at top, bottom.But the difference of these two embodiment is: the holdfast among the 3rd embodiment adopts traditional crust welding manner to be fixed on the top of chute.And in the 4th embodiment, at first offer round hole at the chute top.The diameter of diameter and the holdfast shaft in this circle hole is suitable, but less than the diameter of the ring-type stage body bottom the holdfast.Like this, when making this built-in type conduit, at first holdfast is passed this hole from the opening part of chute, the ring-type stage body at holdfast top fixes in the position in this hole, adopts the mode of combination of inner and outside welding fixing as a whole then.Adopt the built-in type conduit of this welding fixed form on tensile strength, obviously to be better than other embodiment.In the 4th embodiment, can the be spirally connected ring bodies of a slightly larger in diameter of holdfast top with further expansion holdfast and concrete area of contact, increases the anti-pulling intensity of this built-in type conduit in cement concrete.
This built-in type conduit at first before nuclear station crane span structure or railway tunnel contact system are installed, on the template or be welded on the reinforcing bar, is embedded into this built-in type conduit stickfast in the cement concrete in use then.This built-in type conduit must be inserted packing material and be entered to prevent cement concrete.When concrete coagulation, remove template, and remove packing material (can remove packing material fully or only remove bolt embedded location part) from chute.Behind pre-buried the finishing, tommyhead bolt embedded chute and revolve turn 90 degrees, can hang contact system and crane span structure system.It is emphasized that the recess that must check tommyhead bolt bar tail this moment determining whether installation specification of bolt, this recess must guarantee be the chute length direction laterally.
The construction technology of this built-in type conduit is simple, tenure of use is long, it is little to be affected by the external environment, and various tension and shear behavior is good, safety factor is high, and every mechanics and dynamic property are verified in national laboratory, have good technology promotional value.
Above this built-in type conduit is had been described in detail.For one of ordinary skill in the art, any conspicuous change of under the prerequisite that does not deviate from the utility model connotation it being done all will constitute to the utility model infringement of patent right, with corresponding legal responsibilities.
Claims (5)
1. a built-in type conduit comprises holdfast and chute two parts, it is characterized in that:
The cross-sectional plane of described chute is " recessed " font towards side's opening, is provided with in the both sides of opening part to be beneficial to the fixedly ratchet of tommyhead bolt;
Described holdfast has a plurality of, and the certain fixed distance of each interval is at the top of described chute.
2. built-in type conduit as claimed in claim 1 is characterized in that:
Described holdfast is " I " font, is fixed on the top of described chute in the mode of crust welding.
3. built-in type conduit as claimed in claim 1 is characterized in that:
Described holdfast is cylindrical, and the ring-type stage body is arranged at top, bottom, is fixed on the top of described chute in the mode of crust welding.
4. built-in type conduit as claimed in claim 1 is characterized in that:
Described holdfast is cylindrical, and the ring-type stage body is arranged at top, bottom;
The top of described chute has round hole, and the shaft diameter of the diameter in described round hole and described holdfast is suitable, less than the diameter of described ring-type stage body;
Described holdfast passes described round hole, and described ring-type stage body fixes in the position in described round hole, and is fixing as a whole in the mode of combination of inner and outside welding.
5. built-in type conduit as claimed in claim 4 is characterized in that:
The top of described holdfast is bolted with the ring bodies of a slightly larger in diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201729437U CN201534501U (en) | 2009-08-18 | 2009-08-18 | Pre-buried type channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201729437U CN201534501U (en) | 2009-08-18 | 2009-08-18 | Pre-buried type channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201534501U true CN201534501U (en) | 2010-07-28 |
Family
ID=42534285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201729437U Expired - Lifetime CN201534501U (en) | 2009-08-18 | 2009-08-18 | Pre-buried type channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201534501U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297909A (en) * | 2015-11-15 | 2016-02-03 | 江苏安荣电气设备有限公司 | Specific pre-buried chute bearing assembly |
| CN105297912A (en) * | 2015-11-15 | 2016-02-03 | 江苏安荣电气设备有限公司 | Specific curved pre-buried chute bearing assembly |
| CN111550279A (en) * | 2020-05-14 | 2020-08-18 | 河北亿鑫紧固件有限公司 | Channel refractory device and preparation process thereof |
| CN113607548A (en) * | 2021-01-14 | 2021-11-05 | 江苏省建筑工程质量检测中心有限公司 | Channel body tensile strength mechanical test tool and application thereof |
| CN114148221A (en) * | 2021-11-22 | 2022-03-08 | 兰州铁道设计院有限公司 | Contact net hanging post fixing structure for operating railway open cut tunnel and construction method thereof |
-
2009
- 2009-08-18 CN CN2009201729437U patent/CN201534501U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297909A (en) * | 2015-11-15 | 2016-02-03 | 江苏安荣电气设备有限公司 | Specific pre-buried chute bearing assembly |
| CN105297912A (en) * | 2015-11-15 | 2016-02-03 | 江苏安荣电气设备有限公司 | Specific curved pre-buried chute bearing assembly |
| CN111550279A (en) * | 2020-05-14 | 2020-08-18 | 河北亿鑫紧固件有限公司 | Channel refractory device and preparation process thereof |
| CN111550279B (en) * | 2020-05-14 | 2021-10-29 | 河北亿鑫紧固件有限公司 | Preparation method of channel refractory device |
| CN113607548A (en) * | 2021-01-14 | 2021-11-05 | 江苏省建筑工程质量检测中心有限公司 | Channel body tensile strength mechanical test tool and application thereof |
| CN114148221A (en) * | 2021-11-22 | 2022-03-08 | 兰州铁道设计院有限公司 | Contact net hanging post fixing structure for operating railway open cut tunnel and construction method thereof |
| CN114148221B (en) * | 2021-11-22 | 2024-04-02 | 兰州铁道设计院有限公司 | Contact net hanging column fixing structure for operation railway open cut tunnel and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170328 Address after: 102211 Beijing city of Changping District Bai Shan Zhen Meng Lizu Village West Patentee after: Huang Qizhen Patentee after: Beijing Puran Railway Transportation Technology Co., Ltd. Patentee after: Shandong Heze Germany new Mstar Technology Ltd Address before: 100036 Haidian District Fuxing Road, No. 65, Beijing telecom industrial building, room 707 Patentee before: Huang Qizhen |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100728 |
|
| CX01 | Expiry of patent term |