CN213895032U - Prestressed anchorage utensil top pressure equipment is put - Google Patents
Prestressed anchorage utensil top pressure equipment is put Download PDFInfo
- Publication number
- CN213895032U CN213895032U CN202022059437.6U CN202022059437U CN213895032U CN 213895032 U CN213895032 U CN 213895032U CN 202022059437 U CN202022059437 U CN 202022059437U CN 213895032 U CN213895032 U CN 213895032U
- Authority
- CN
- China
- Prior art keywords
- boss
- piston
- hole
- plate
- oil cylinder
- 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.)
- Active
Links
Images
Landscapes
- Actuator (AREA)
Abstract
A pre-stressed anchor jacking device is provided with an oil cylinder, a piston, a jacking plate, a return spring, a spring seat and a limiting plate, wherein the oil cylinder is a one-way oil cylinder; the piston is provided with a boss, the reset spring is sleeved on the boss, one end of the reset spring props against the piston, and the other end of the reset spring props against the spring seat; the spring seat is provided with a through hole which is larger than the boss, so that the boss can move in the through hole after the boss is sleeved with the through hole, the edge of the through hole is provided with a counter bore for limiting the reset spring, and the spring seat is fixedly connected with the oil cylinder; the jacking plate is fixedly connected with a boss of the piston and moves along with the piston, through holes which are in the same arrangement with the anchor hole plate are formed in the jacking plate so that the steel strand can pass through the through holes, the jacking plate is of a boss structure, and the boss of the jacking plate is in sliding fit with an inner hole of the limiting plate; the limiting plate is fixedly connected with the oil cylinder. Its advantages are use of one-way oil path and restoring spring, simple structure, light weight and low cost.
Description
Technical Field
The utility model relates to a prestressing force technical field, in particular to prestressed anchorage utensil top pressure equipment is put.
Background
In the prestressed tensioning construction, particularly in the short prestressed tendon tensioning construction, in order to reduce the retraction amount of the anchorage and reduce the prestress loss, the clamping piece on the anchorage is required to be pushed into the taper hole in order in the locking process so as to firmly clamp the prestressed tendon, and a limiting plate or a hydraulic jacking device is required to be adopted. The hydraulic jack is usually of a double-oil-path structure, such as "an integral jack for anchor cable construction" in CN 201621427160. The hydraulic jacking device with the structure is provided with the oil inlet oil way, the oil return oil way, the oil inlet cavity and the oil return cavity, and is large in size and high in cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adopt single oil circuit and reset spring structure, simple structure, light, the lower prestressed anchorage utensil top pressure equipment is put to the cost.
The utility model discloses a solution is such:
a jacking device of a prestressed anchorage device is provided with an oil cylinder, a piston, a jacking plate, a return spring, a spring seat and a limiting plate, wherein the oil cylinder is a one-way oil cylinder; the piston is provided with a boss, the reset spring is sleeved on the boss, one end of the reset spring props against the piston, and the other end of the reset spring props against the spring seat; the spring seat is provided with a through hole which is larger than the boss, so that the boss can move in the through hole after the boss is sleeved with the through hole, the edge of the through hole is provided with a counter bore for limiting the reset spring, and the spring seat is fixedly connected with the oil cylinder; the jacking plate is fixedly connected with a boss of the piston and moves along with the piston, through holes which are in the same arrangement with the anchor hole plate are formed in the jacking plate so that the steel strand can pass through the through holes, the jacking plate is of a boss structure, and the boss of the jacking plate is in sliding fit with an inner hole of the limiting plate; the limiting plate is fixedly connected with the oil cylinder.
The more specific technical scheme also comprises the following steps: the boss of the piston is connected with the top pressure plate, and the top pressure plate is tightly connected with the boss of the piston through a first bolt.
Further: the limiting plate is of an inwards concave structure, the edge of the limiting plate is fixedly connected with the edge of the oil cylinder, and a gap is formed between the inwards concave part of the limiting plate and the step of the jacking plate.
Further: the spring seat is in a ring shape with a central hole, a through hole is formed in the position, opposite to the boss of the piston, for the boss to penetrate through the through hole, and a counter bore is formed in the edge of the through hole so as to limit the reset spring.
Further: the piston is provided with three bosses which are uniformly distributed on the circumference.
The utility model has the advantages that adopt one-way oil circuit and reset spring structure, simple structure, light, the cost is lower.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a view a-a of fig. 1.
Fig. 4 is a schematic structural diagram of the spring seat 7 of the present invention
FIG. 5 is a left side view of FIG. 4
Fig. 6 is a schematic view of the pressing clip of the anchor pressing device of the present invention.
The parts of the drawings are detailed as follows: 1. the hydraulic oil cylinder comprises an oil cylinder 2, a guide belt 3, a piston 4, an oil nozzle 5, a gurley ring 6, a return spring 7, a spring seat 8, a first bolt 9, a limiting plate 10, a jacking plate 11, a second bolt 12, a third bolt 13, a jack 14, an anchor plate 15, a clamping piece 16 and a steel strand.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1, 2 and 3, the present invention is provided with an oil cylinder 1, a piston 3, a top pressure plate 10, a return spring 6, a spring seat 7 and a limiting plate 9, wherein the oil cylinder 1 is a one-way oil cylinder; the piston 3 is provided with three bosses which are uniformly distributed on the circumference; the reset spring 6 is sleeved on the boss, one end of the reset spring 6 props against the piston 3, and the other end of the reset spring 6 props against the spring seat 7 and is used for pushing the piston 3 to return after the jacking is finished; the spring seat 7 is provided with a through hole which is larger than the boss, so that the boss can move in the through hole after the boss is sleeved with the through hole, a counter bore is arranged at the edge of the through hole to limit the reset spring 6, and the spring seat 7 is fixedly connected with the oil cylinder 1; the top pressure plate 10 is fixedly connected with a boss of the piston 3 into a whole through a first bolt 8 and moves along with the piston 3; the jacking plate 10 is provided with through holes which are arranged in the same way as the anchor hole plate so that the steel strand can pass through the through holes, the jacking plate 10 is of a boss structure, and the boss of the jacking plate is in sliding fit with the inner hole of the limiting plate 9; and the limiting plate 9 is fixedly connected with the oil cylinder 1. The top pressure plate 10 is sleeved on the outer diameter of the second bolt 11, and the hole of the top pressure plate is slightly larger than the outer diameter of the bolt to form a sliding structure.
The limiting plate 9 is of a concave structure, the edge of the limiting plate 9 is fixedly connected with the edge of the oil cylinder 1, a gap is formed between the concave part of the limiting plate 9 and the step of the top pressure plate 10, and the limiting plate 9 is fixedly connected with the oil cylinder 1 through a second bolt 11.
The spring seat 7 is in a ring shape with a central hole, a through hole is formed in the position opposite to the boss of the piston 3 for the boss to penetrate through the through hole, a counter bore is formed in the edge of the through hole to limit the return spring 6, and the spring seat 7 is fixed with the oil cylinder 1 through a third bolt 12.
The oil cylinder 1 is provided with an oil nozzle 4, pressure oil is sent to a pressure cavity of the piston through the oil nozzle 4, and the piston 3 is provided with a gurney ring 5.
Spring seat 7 as shown in fig. 4 and 5, spring seat 7 is annular with a central hole.
The utility model discloses a method of use is as shown in fig. 6, during the construction, after having installed equipment as shown in fig. 3, to jack 13 loading, stretch-draw steel strand wires 16, stretch-draw stops after targetting in place, later to the top pressure device loading, the 4 oil intakes of glib talker promote piston 3 and top pressure board 10 and move right, push up the anchor eye of anchor slab 14 with clamping piece 15 neatly. After the top pressing is finished, the working oil pressure is unloaded, and the piston 3 and the top pressing plate 10 return under the action of the return spring 6 to prepare for the next top pressing work.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make various changes or modifications to the equivalent embodiments without departing from the scope of the present invention, and all changes and modifications that may be made to the above embodiments based on the technical spirit of the present invention are within the scope of the present invention.
Claims (5)
1. The utility model provides a prestressed anchorage utensil top pressure equipment is equipped with hydro-cylinder, piston, roof pressure board, reset spring, spring holder and limiting plate, its characterized in that: the oil cylinder is a one-way oil cylinder; the piston is provided with a boss, the reset spring is sleeved on the boss, one end of the reset spring props against the piston, and the other end of the reset spring props against the spring seat; the spring seat is provided with a through hole which is larger than the boss, so that the boss can move in the through hole after the boss is sleeved with the through hole, the edge of the through hole is provided with a counter bore for limiting the reset spring, and the spring seat is fixedly connected with the oil cylinder; the top pressure plate is fixedly connected with a boss of the piston and moves along with the piston, through holes which are consistent with the arrangement of the anchor holes of the anchor plate are formed in the top pressure plate, so that the steel strand can pass through the through holes, the top pressure plate is of a boss structure, and the boss of the top pressure plate is in sliding fit with the inner hole of the limiting plate; the limiting plate is fixedly connected with the oil cylinder.
2. The prestressed anchorage device of claim 1, wherein: the boss of the piston is connected with the top pressure plate, and the top pressure plate is tightly connected with the boss of the piston through a first bolt.
3. The prestressed anchorage device of claim 1, wherein: the limiting plate is of an inwards concave structure, the edge of the limiting plate is fixedly connected with the edge of the oil cylinder, and a gap is formed between the inwards concave part of the limiting plate and the step of the jacking plate.
4. The prestressed anchorage device of claim 1, wherein: the spring seat is in a ring shape with a central hole, a through hole is formed in the position, opposite to the boss of the piston, for the boss to penetrate through the through hole, and a counter bore is formed in the edge of the through hole so as to limit the reset spring.
5. The pre-stressed anchor device of claim 1, 2 or 4, wherein: the piston is provided with three bosses which are uniformly distributed on the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022059437.6U CN213895032U (en) | 2020-09-18 | 2020-09-18 | Prestressed anchorage utensil top pressure equipment is put |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022059437.6U CN213895032U (en) | 2020-09-18 | 2020-09-18 | Prestressed anchorage utensil top pressure equipment is put |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213895032U true CN213895032U (en) | 2021-08-06 |
Family
ID=77109994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022059437.6U Active CN213895032U (en) | 2020-09-18 | 2020-09-18 | Prestressed anchorage utensil top pressure equipment is put |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213895032U (en) |
-
2020
- 2020-09-18 CN CN202022059437.6U patent/CN213895032U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202401772U (en) | Supporting lug with clip top pressing and top loosing functions and clip limit | |
| CN208981794U (en) | Prestressed anchorage cable stop device | |
| CN110761283A (en) | Anchor rod compensation tensioning device | |
| CN213895032U (en) | Prestressed anchorage utensil top pressure equipment is put | |
| CN218579457U (en) | A harmless hoist device for vertical pipeline | |
| CN216997446U (en) | Self-locking hydraulic jack | |
| CN113501459A (en) | Front-clamping porous through jack structure | |
| CN207211771U (en) | A kind of stopping means for reducing prestressd anchor cable loss | |
| CN212151453U (en) | Front clamping type jack | |
| CN112127358A (en) | Processing method of precast concrete pile and precast concrete pile | |
| CN109179175B (en) | First rope ring throwing device of coal mine friction type elevator | |
| CN209816846U (en) | Hydraulic anchor rod prestress loss-stopping device | |
| CN108265631B (en) | Prestress tensioning system for porous tool anchor and steel strand | |
| CN220301812U (en) | Hydraulic box girder steel strand prestress eliminating device | |
| CN213033273U (en) | Fixed-length anchoring extruder | |
| CN111485678A (en) | Connector for prestressed steel strand and use method | |
| CN216072868U (en) | Front-clamping through type tensioning jack | |
| CN212080047U (en) | Automatic tool anchor for jack | |
| CN220503704U (en) | Cable withdrawing tool applicable to replacement of single filled epoxy coating steel strand | |
| CN220813469U (en) | Supporting plate jacking installation device behind multi-strand cable | |
| CN214331352U (en) | Steel bar wire rope lock catch | |
| CN210828364U (en) | Intelligent tensioning automatic jacking limiting device | |
| CN212615697U (en) | Integral automatic tensioning jack | |
| CN218931476U (en) | Barrel hoisting tool | |
| CN220201135U (en) | Hoisting auxiliary device for single machine double hoisting points of hoisting equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |