CN204728209U - Bridge prestress tensioning equipment - Google Patents
Bridge prestress tensioning equipment Download PDFInfo
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- CN204728209U CN204728209U CN201520115419.1U CN201520115419U CN204728209U CN 204728209 U CN204728209 U CN 204728209U CN 201520115419 U CN201520115419 U CN 201520115419U CN 204728209 U CN204728209 U CN 204728209U
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- oil cylinder
- steel strand
- level oil
- bridge
- piston
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Abstract
The utility model discloses a kind of bridge prestress tensioning equipment, comprise bridge, the stress hole be arranged in bridge, through described prestress hole steel strand, be snug fit at described steel strand front end cone-shaped clip and be oppositely arranged and the one-level oil cylinder be interconnected and two-level oil cylinder; The first stage piston be fixedly connected with described steel strand is provided with in described one-level oil cylinder, the second piston for being advanced by described front end cone-shaped clip in stress hole is provided with in described two-level oil cylinder, the elastic locking mechanism of outwards sliding for locking second piston is provided with in described two-level oil cylinder casing wall, its structure is improved ingenious, piston action is utilized cone-shaped clip to be headed into the Kong Weizhong of pre-buried ground tackle pad, and prevent resilience, the workmanship of bridge can be guaranteed.
Description
Technical field
The utility model relates to pre-stressed bridge field, specifically a kind of bridge prestress tensioning equipment.
Background technology
In the construction of bridge, need steel strand in the prestressed pipe of bridge, then tensioning equipment extended steel twisted wire is used, on steel strand, cone-shaped clip is set with after stretching, steel strand are utilized to be released the resilience of rear steel strand, cone-shaped clip is made to fill in the Kong Weizhong tensioning steel strand of pre-buried ground tackle pad, this way needs to apply the power larger than the prestressing force of design by Method of Steel Strand Stretching, pulling force produces comparatively difficulty, particularly, after steel strand resilience, the prestressing force that steel strand are applied on bridge often has larger difference with the prestressing force of design, this must have a huge impact workmanship.
Therefore, the purpose of this utility model is to provide a kind of bridge prestress tensioning equipment, and its structure is improved ingenious, piston action is utilized cone-shaped clip to be headed into the Kong Weizhong of pre-buried ground tackle pad, and prevent resilience, the workmanship of bridge can be guaranteed, more convenient operation safety.
Utility model content
In view of this, the purpose of this utility model overcomes defect of the prior art, structure is provided to improve ingenious, piston action is utilized cone-shaped clip to be headed into the Kong Weizhong of pre-buried ground tackle pad, and prevent resilience, the workmanship of bridge can be guaranteed, the bridge prestress tensioning equipment of more convenient operation safety.
Bridge prestress tensioning equipment of the present utility model, comprise bridge, the stress hole be arranged in bridge, through described prestress hole steel strand, be snug fit at described steel strand front end cone-shaped clip and be oppositely arranged and the one-level oil cylinder be interconnected and two-level oil cylinder; The first stage piston be fixedly connected with described steel strand is provided with in described one-level oil cylinder, being provided with the second piston for being advanced by described front end cone-shaped clip in stress hole in described two-level oil cylinder, in described two-level oil cylinder casing wall, being provided with the elastic locking mechanism of outwards sliding for locking second piston;
Further, described elastic locking mechanism comprises elasticity and is connected to two-level oil cylinder's casing wall steel ball and is arranged at the groove that second piston sidewall coordinates with described steel ball;
Further, described elastic locking mechanism also comprises the adjustment screw be connected with two-level oil cylinder casing wall by screw thread and the spring be arranged between adjustment screw and steel ball;
Further, described first stage piston and second piston are equipped with steel strand via hole, and described first stage piston outer end is fixed with one-level ground tackle, and described steel strand are passed described steel strand via hole and are fixedly connected with one-level ground tackle by a rear end cone-shaped clip;
Further, described first stage piston sidewall is provided with the spacing shaft shoulder, and described one-level oil cylinder outer end is provided with and coordinates spacing spacing ring with the described spacing shaft shoulder;
Further, described steel strand are provided with tensiometer, and described first stage piston outer face is provided with the cavity holding tensiometer.
The beneficial effects of the utility model are: bridge prestress tensioning equipment of the present utility model, steel strand are through the stress hole on bridge, when after charged pressure oil in the one-level oil cylinder and two-level oil cylinder of this device, second piston in the in-oil cylinder first stage piston of one-level and two-level oil cylinder moves in the opposite direction, first stage piston is fixedly connected with steel strand and moves away from bridge, thus tension steel strand, second piston is locked by elastic locking mechanism, after the pulling force of steel strand reaches setting value, second piston can overcome and pushes stress hole in by front end cone-shaped clip by the latching force overcoming elastic locking mechanism towards the motion of bridge direction, steel strand are fixed and bridge one end, and then prevent steel strand resilience, the workmanship of bridge can be guaranteed, more convenient operation safety.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, as shown in the figure, bridge 1 pre-stress stretching device of the present embodiment, comprise bridge 1, the stress hole be arranged in bridge 1, through described prestress hole steel strand, be snug fit at described steel strand front end cone-shaped clip 2 and be oppositely arranged and the one-level oil cylinder 4 be interconnected and two-level oil cylinder 3, the first stage piston 5 be fixedly connected with described steel strand is provided with in described one-level oil cylinder 4, the second piston 10 for being advanced by described front end cone-shaped clip 2 in stress hole is provided with in described two-level oil cylinder 3, the elastic locking mechanism of outwards sliding for locking second piston 10 is provided with in described two-level oil cylinder 3 casing wall, steel strand are through the stress hole on bridge 1, when after charged pressure oil in the one-level oil cylinder 4 and two-level oil cylinder 3 of this device, first stage piston 5 in one-level oil cylinder 4 moves in the opposite direction with the second piston 10 in two-level oil cylinder 3, first stage piston 5 is fixedly connected with steel strand and moves away from bridge 1, thus tension steel strand, second piston 10 is locked by elastic locking mechanism, after the pulling force of steel strand reaches setting value, second piston 10 can overcome and pushes stress hole in by front end cone-shaped clip 2 by the latching force overcoming elastic locking mechanism towards the motion of bridge 1 direction, steel strand are fixed and bridge 1 one end, and then prevent steel strand resilience, the workmanship of bridge 1 can be guaranteed, more convenient operation safety.
In the present embodiment, described elastic locking mechanism comprises elasticity and is connected to two-level oil cylinder 3 casing wall steel ball 11 and is arranged at the groove that second piston 10 sidewall coordinates with described steel ball 11, steel ball 11 is pressed in groove by resilient force, thus the motion of locking second piston 10.
In the present embodiment, described elastic locking mechanism also comprises the adjustment screw 13 be connected with two-level oil cylinder 3 casing wall by screw thread and the spring 12 be arranged between adjustment screw 13 and steel ball 11, can the latching force of adjustable elastic locking mechanism by turning adjusting screw 13, finally reach the object regulating steel strand prestress size.
In the present embodiment, described first stage piston 5 is equipped with steel strand via hole with second piston 10, and described first stage piston 5 outer end is fixed with one-level ground tackle 8, and described steel strand are passed described steel strand via hole and are fixedly connected with one-level ground tackle 8 by a rear end cone-shaped clip.
In the present embodiment, described first stage piston 5 sidewall is provided with the spacing shaft shoulder 6, and described one-level oil cylinder 4 outer end is provided with and coordinates spacing spacing ring 7 with the described spacing shaft shoulder 6, thus realizes the restriction to first stage piston 5 maximum tension distance, avoids steel strand to break.
In the present embodiment, described steel strand are provided with tensiometer 9, and described first stage piston 5 outer face is provided with the cavity holding tensiometer 9, and tensiometer 9 can be electrically connected a display for intuitively being shown by the reading of tensiometer 9.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. a bridge prestress tensioning equipment, is characterized in that: comprise bridge, the stress hole be arranged in bridge, through described prestress hole steel strand, be snug fit at described steel strand front end cone-shaped clip and be oppositely arranged and the one-level oil cylinder be interconnected and two-level oil cylinder; The first stage piston be fixedly connected with described steel strand is provided with in described one-level oil cylinder, being provided with the second piston for being advanced by described front end cone-shaped clip in stress hole in described two-level oil cylinder, in described two-level oil cylinder casing wall, being provided with the elastic locking mechanism of outwards sliding for locking second piston.
2. bridge prestress tensioning equipment according to claim 1, is characterized in that: described elastic locking mechanism comprises elasticity and is connected to two-level oil cylinder's casing wall steel ball and is arranged at the groove that second piston sidewall coordinates with described steel ball.
3. bridge prestress tensioning equipment according to claim 2, is characterized in that: described elastic locking mechanism also comprises the adjustment screw be connected with two-level oil cylinder casing wall by screw thread and the spring be arranged between adjustment screw and steel ball.
4. bridge prestress tensioning equipment according to claim 3, it is characterized in that: described first stage piston and second piston are equipped with steel strand via hole, described first stage piston outer end is fixed with one-level ground tackle, and described steel strand are passed described steel strand via hole and are fixedly connected with one-level ground tackle by a rear end cone-shaped clip.
5. bridge prestress tensioning equipment according to claim 4, is characterized in that: described first stage piston sidewall is provided with the spacing shaft shoulder, and described one-level oil cylinder outer end is provided with and coordinates spacing spacing ring with the described spacing shaft shoulder.
6. bridge prestress tensioning equipment according to claim 5, is characterized in that: described steel strand are provided with tensiometer, and described first stage piston outer face is provided with the cavity holding tensiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115419.1U CN204728209U (en) | 2015-02-25 | 2015-02-25 | Bridge prestress tensioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115419.1U CN204728209U (en) | 2015-02-25 | 2015-02-25 | Bridge prestress tensioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204728209U true CN204728209U (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520115419.1U Active CN204728209U (en) | 2015-02-25 | 2015-02-25 | Bridge prestress tensioning equipment |
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| CN (1) | CN204728209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652287A (en) * | 2015-02-25 | 2015-05-27 | 林同棪国际工程咨询（中国）有限公司 | Bridge pre-stress tension device |
-
2015
- 2015-02-25 CN CN201520115419.1U patent/CN204728209U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652287A (en) * | 2015-02-25 | 2015-05-27 | 林同棪国际工程咨询（中国）有限公司 | Bridge pre-stress tension device |
| CN104652287B (en) * | 2015-02-25 | 2016-06-22 | 林同棪国际工程咨询（中国）有限公司 | Bridge prestress tensioning equipment |
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| GR01 | Patent grant |