CN221072291U - Vertical prestressing force accurate anchor - Google Patents
Vertical prestressing force accurate anchor Download PDFInfo
- Publication number
- CN221072291U CN221072291U CN202322604927.3U CN202322604927U CN221072291U CN 221072291 U CN221072291 U CN 221072291U CN 202322604927 U CN202322604927 U CN 202322604927U CN 221072291 U CN221072291 U CN 221072291U
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- Prior art keywords
- anchor
- nut
- ball nut
- stressing
- anchoring device
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- 238000004873 anchoring Methods 0.000 claims abstract description 38
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 17
- 229910000831 Steel Inorganic materials 0.000 description 26
- 239000010959 steel Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002023 wood Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model relates to the technical field of construction, in particular to a vertical pre-stress accurate anchoring device, which comprises an anchor rod, an anchor backing plate, a spherical nut and an anchor nut, wherein a plurality of anchor rods penetrate through the two anchor backing plates, the two anchor backing plates are respectively arranged at two ends of the anchor rod, one end of each anchor rod is provided with the spherical nut, the other end of each anchor rod is provided with the anchor nut, the bottom surface of each spherical nut is a convex curved surface, all the spherical nuts and all the anchor nuts are respectively arranged at the top surface side of the corresponding end of each anchor backing plate.
Description
Technical Field
The utility model relates to the technical field of engineering construction, in particular to a vertical prestress accurate anchoring device.
Background
In the prior art, the crack resistance, the rigidity and the impermeability of the large-span suspension casting continuous beam concrete can be improved by stretching the steel bar by vertical prestress, thereby achieving the purpose of improving the integral compressive resistance of the bridge member. The traditional vertical unbonded vertical prestress anchoring system consists of an anchor backing plate, an anchor baffle, a spiral rib, an anchor nut, an anchor backup nut and the like. Fixing the tensioning end of the unbonded prestress steel bar through an anchoring system, so as to permanently maintain tensioning stress, wherein a top anchor backing plate is often positioned inaccurately in the traditional construction process, so that a deflection angle exists between the vertical prestress steel bar and the anchor backing plate, the prestress steel bar is subjected to shearing force, and the stress performance of the steel bar is affected; in a disordered construction site, due to the impact of the working machine and personnel, the installed anchoring system is displaced, and an offset angle exists between the vertical prestress steel bar and the anchor backing plate, so that the prestress steel bar is subjected to shearing force.
Disclosure of utility model
The utility model aims at: the top anchor backing plate is positioned inaccurately to enable an offset angle to exist between the vertical prestress steel bar and the anchor backing plate, so that the prestress steel bar is subjected to shearing force, the stress performance of the steel bar is affected, and the vertical prestress accurate anchoring device is provided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a vertical prestressing force accurate anchor, contains anchor stick, anchor backing plate, ball nut and anchor nut, a plurality of the anchor stick passes two anchor backing plate, two anchor backing plate is arranged respectively the both ends of anchor stick, all anchor stick one end sets up ball nut, the other end sets up anchor nut, ball nut bottom surface is protruding curved surface, all ball nut and all anchor nut are arranged respectively in the corresponding end the top surface side of anchor backing plate.
The proposal recommends the vertical prestress accurate anchoring device, which comprises an anchor rod, an anchor backing plate, a spherical nut and an anchor nut, wherein a plurality of anchor rods penetrate through two anchor backing plates, the two anchor backing plates are arranged at the two ends of the anchor rod, and the anchor rods are used for bearing prestress, so as to improve the stress capability; the anchor backing plate transmits the tensile force of the prestressed tendons to the concrete; one end of each anchor rod is provided with the spherical nut, the other end of each anchor rod is provided with the anchor nut, and the spherical nuts can ensure that the stretching stress direction of the steel rod is always vertical to the anchor plate due to the fact that the bottom surface of each spherical nut is a convex curved surface, so that the vertical prestress steel rod is prevented from being sheared; the anchor nuts are connected to the other end of the anchor rod and used for fixing the anchor rod, and all the spherical nuts and all the anchor nuts are respectively arranged on the top surface side of the anchor backing plate at the corresponding ends.
According to the vertical prestress accurate anchoring device, the anchoring nut at one end in the prior art is replaced with the spherical nut, so that the tensioning stress direction of the steel bar is always vertical to the anchor plate, the vertical prestress steel bar is prevented from being sheared, the tensioning stress loss caused by overlarge deflection of the steel bar can be effectively reduced, the vertical prestress construction quality of the cantilever beam is improved, the primary qualification rate of the vertical prestress steel bar construction can be greatly improved, repeated procedure construction is avoided, and manpower and material resources are saved.
As a preferred embodiment of the present utility model, the ball nut further comprises a ball nut washer, the ball nut washer having a concave curved surface on top thereof adapted to the bottom surface of the ball nut, the ball nut washer being disposed between the ball nut and the anchor pad.
The proposal recommends that the spherical nut further comprises a spherical nut gasket, the top of the spherical nut gasket is provided with a concave curved surface which is matched with the bottom surface of the spherical nut, the service life of the spherical nut is prolonged due to the spherical nut gasket, the deflection angle of the spherical nut is controlled in a certain range, the spherical nut gasket is arranged between the spherical nut and the anchor backing plate and used for protecting the nut from being scratched, and the pressure of the nut to the anchor backing plate is dispersed.
As a preferred embodiment of the present utility model, the top surface of the ball nut and the bottom surface of the ball nut washer are flat surfaces.
The proposal recommends that the top surface of the spherical nut and the bottom surface of the spherical nut gasket are planes, the contact area with the adjacent surface is increased, the connecting pressure is dispersed, and the spherical nut gasket are protected from being crushed.
As a preferable scheme of the utility model, the deflection angle range between the convex curved surface of the spherical nut and the concave curved surface of the spherical nut gasket is 2-6 degrees.
According to the scheme, the deflection angle range of the spherical nut and the spherical nut gasket is 2-6 degrees, the deflection angle range is too small to achieve the deviation correcting effect on the anchor rod, and the spherical nut gasket cannot achieve the protection and force transmission effect on the spherical nut due to the too large deflection angle range.
As a preferred embodiment of the present utility model, the top of the ball nut includes three or more horns.
The proposal recommends that the top of the spherical nut comprises three or more angle heads, and the spherical nut is fixed firmly by using tools conveniently.
As a preferred embodiment of the present utility model, the vertical pre-stressing accurate anchoring device further comprises an anchor box disposed between the anchor pad and the ball nut.
This scheme is recommended vertical prestressing force accurate anchor still includes the anchor box, the anchor box sets up the anchor backing plate with between the ball nut, use anchor box cooperation location reinforcing bar to the upper shed of vertical prestressing force be fixed a position, control vertical prestressing force's line type, ensure that the vertical prestressing force reinforcing bar must the line type be smooth and easy after the concrete placement, can reduce the prestressing force steel bar because of the skew influence that artificial installation caused, provide convenient for the operating personnel, improve the efficiency of construction, vertical prestressing force anchor nut with ball nut, fasten anchor box and steel bar, anchor backing plate three together, guarantee the height that vertical prestressing force reinforcing bar exposes, also strengthened vertical prestressing force's line type control simultaneously, the anchor box can also reduce personnel and construction disturbance, prevent that the anchor system that has been installed from taking place the displacement.
As a preferable scheme of the utility model, the anchor box is an open box with wide top and narrow bottom, the size of the narrow opening is matched with the anchor backing plate, and the height of the box body is 1-5cm higher than the extending end of the anchor rod.
According to the scheme, the anchor box is an open box with a wide top and a narrow bottom, the narrow opening size is matched with the anchor backing plate, the box body height is higher than the extending end of the anchor rod by 1-5cm, the open box with the wide top and the narrow bottom is arranged so that an operation space exists in the subsequent working procedure after the anchor box is arranged, and the box body height is higher than the extending end of the anchor rod by 1-5cm so as to prevent personnel or instruments from collision.
As a preferred embodiment of the utility model, the anchor box comprises a plurality of wood boards.
The proposal recommends that the anchor box comprises a plurality of wood boards, and the anchor box is not permanently placed on the device, so that the anchor box can be used as a pouring template in the later period of construction, the anchor box is dismantled after pouring, the cost of the anchor box made of the wood boards is low, the recovery is convenient, and the construction cost can be saved.
As a preferable scheme of the utility model, the vertical prestress precise anchoring device further comprises a safety nut and a safety cushion plate, wherein the two safety cushion plates penetrate through the anchoring rod, are respectively arranged on the top surfaces of the spherical nut and the anchoring nut, and are firmly connected through the safety nut.
This scheme is recommended vertical prestressing force accurate anchor still includes insurance nut and insurance backing plate, two insurance backing plate passes the anchor stick is arranged respectively the top surface side of ball nut and anchor nut to firm in connection through insurance nut, insurance backing plate with insurance nut plays dual fastening's effect, prevents ball nut and anchor nut slippage.
As a preferred embodiment of the utility model, the safety plate is sized to completely cover the ball nut and the anchor nut.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. According to the vertical prestress accurate anchoring device, the anchoring nut at one end in the prior art is replaced with the spherical nut, so that the tensioning stress direction of the steel bar is always vertical to the anchor plate, the vertical prestress steel bar is prevented from being sheared, the tensioning stress loss caused by overlarge deflection of the steel bar can be effectively reduced, the vertical prestress construction quality of the cantilever beam is improved, the primary qualification rate of the vertical prestress steel bar construction can be greatly improved, repeated procedure construction is avoided, and manpower and material resources are saved.
Drawings
FIG. 1 is a schematic perspective view of a vertical pre-stressed precision anchoring device of the present utility model;
FIG. 2 is a schematic side view of a vertical pre-stressed precision anchoring device of the present utility model;
FIG. 3 is a schematic elevational view of a vertical pre-stressed precision anchoring device of the present utility model;
FIG. 4 is a schematic view of a cross section and top view of a ball nut of a vertical pre-stressed precision anchoring device according to the present utility model;
Icon: 1-an anchor rod; 2-spiral ribs; 3-ball nut; 31-ball nut washers; 4-anchor boxes; 5-anchor backing plate; 6-anchoring the nut; 7-a safety nut; 71-insurance gasket.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
Example 1
In this embodiment, as shown in fig. 3, the line between the midpoints of the three anchors 1 is defined, the surface near the extension direction of the anchor 1 is the top surface, and the surface near the shortening direction of the anchor 1 is the bottom surface.
As shown in fig. 1-4, a vertical pre-stressing accurate anchoring device comprises an anchor rod 1, an anchor backing plate 5, spiral ribs 2, spherical nuts 3 and anchor nuts 6, three anchor rods 1 are preferably arranged uniformly in a line, three anchor rods 1 penetrate through two anchor backing plates 5, holes for adapting to the three anchor rods 1 are formed in the anchor backing plate 5, the spiral ribs 2 are connected to each hole, the spiral ribs 2 are arranged between the two anchor backing plates 5, the three anchor rods also penetrate through the spiral ribs 2, one anchor rod 1 penetrates through the two spiral ribs 2 in total, six spiral ribs are needed, two anchor backing plates 5 are respectively arranged at two ends of the anchor rod 1, one ends of the three anchor rods 1 are provided with the spherical nuts 3, the other ends of the three anchor rods are provided with the anchor nuts 6, the three anchor nuts 6 penetrate through the two anchor backing plates, the bottom surfaces of the spherical nuts 3 are convex curved surfaces, all the spherical nuts 3 and all the anchor nuts 6 are respectively arranged on the top surfaces of the corresponding end anchor backing plates 5, and the spiral ribs 2 are used for enabling the pre-stressing structure to be more stable, and the effect of transmitting the concrete structure is achieved.
The ball nut 3 further comprises a ball nut spacer 31, the top of the ball nut spacer 31 is provided with a concave curved surface matched with the bottom surface of the ball nut 3, the ball nut spacer 31 is arranged between the ball nut 3 and the anchor backing plate 5, the top surface of the ball nut 3 and the bottom surface of the ball nut spacer 31 are planes, the deflection angle between the convex curved surface of the ball nut 3 and the concave curved surface of the ball nut spacer 31 ranges from 2 degrees to 6 degrees, and the top of the ball nut 3 is provided with six angle heads.
The vertical pre-stressing accurate anchoring device further comprises an anchor box 4, wherein the anchor box 4 is arranged between the anchor backing plate 5 and the spherical nut 3, and the anchor box 4 is preferably a trapezoidal box with wide top and narrow bottom and is provided with a narrow-mouth matched anchor backing plate 5. The box body is 1-5cm higher than the extending end of the anchor rod 1, and the anchor box 4 is assembled on site through wood plates.
The vertical pre-stressing accurate anchoring device further comprises a safety nut 7 and a safety cushion plate 71, the two safety cushion plates 71 penetrate through the anchor rod 1 and are respectively arranged on the top surface sides of the spherical nut 3 and the anchor nut 6, the safety nut 7 and the safety cushion plate 71 are firmly connected through the safety nut 7, the safety nut 7 and the safety cushion plate 71 play a double fastening role, the spherical nut 3 and the anchor nut 6 are prevented from slipping, and the safety cushion plate 71 is required to completely cover the spherical nut 3 and the anchor nut 6 in size so as to obtain the effect of transmission force.
According to the vertical prestress accurate anchoring device, the anchoring nut at one end in the prior art is replaced with the spherical nut, so that the tensioning stress direction of the steel bar is always vertical to the anchor plate, the vertical prestress steel bar is prevented from being sheared, the tensioning stress loss caused by overlarge deflection of the steel bar can be effectively reduced, the vertical prestress construction quality of the cantilever beam is improved, the primary construction qualification rate of the vertical prestress steel bar can be greatly improved, repeated procedure construction is avoided, and manpower and material resources are saved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides a vertical prestressing force accurate anchor, its characterized in that contains anchor stick (1), anchor backing plate (5), ball nut (3) and anchor nut (6), a plurality of anchor stick (1) pass two anchor backing plate (5), two anchor backing plate (5) are arranged respectively the both ends of anchor stick (1), all anchor stick (1) one end sets up ball nut (3), the other end sets up anchor nut (6), ball nut (3) bottom surface is protruding curved surface, all ball nut (3) and all anchor nut (6) are arranged respectively in the corresponding end the top surface side of anchor backing plate (5).
2. A vertical pre-stressing precision anchoring device according to claim 1, characterized in that the ball nut (3) further comprises a ball nut washer (31), the top of the ball nut washer (31) being concave curved, the ball nut washer (31) being arranged between the ball nut (3) and the anchor pad (5).
3. A vertical pre-stressing precision anchoring device according to claim 2, characterized in that the top surface of the ball nut (3) and the bottom surface of the ball nut washer (31) are plane.
4. A vertical pre-stressing precision anchoring device according to claim 3, characterized in that the deflection angle between the convex curved surface of the ball nut (3) and the concave curved surface of the ball nut spacer (31) is in the range of 2-6 degrees.
5. A vertical pre-stressing precision anchoring device according to claim 4, characterized in that the top of the ball nut (3) comprises three or more angular heads.
6. A vertical pre-stressing precision anchoring device according to claim 1, characterized in that it further comprises an anchor box (4), said anchor box (4) being arranged between said anchor pad (5) and said ball nut (3).
7. The vertical pre-stressing accurate anchoring device according to claim 6, characterized in that the anchoring box (4) is an open box with wide top and narrow bottom, the size of the narrow opening is matched with the anchoring backing plate, and the height of the box body is 1-5cm higher than the protruding end of the anchoring rod.
8. A vertical pre-stressing precision anchoring device according to claim 6, characterized in that said anchor box (4) comprises several wooden plates.
9. A vertical pre-stressing precision anchoring device according to claim 1, characterized in that it further comprises a safety nut (7) and a safety pad (71), both safety pads (71) being arranged through the anchor rod (1) on the top sides of the ball nut (3) and the anchor nut (6), respectively, and being firmly connected by the safety nut (7).
10. A vertical pre-stressing precision anchoring device according to claim 9, characterized in that said safety pad (71) is dimensioned to cover completely said ball nut (3) and said anchoring nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322604927.3U CN221072291U (en) | 2023-09-25 | 2023-09-25 | Vertical prestressing force accurate anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322604927.3U CN221072291U (en) | 2023-09-25 | 2023-09-25 | Vertical prestressing force accurate anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221072291U true CN221072291U (en) | 2024-06-04 |
Family
ID=91261491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322604927.3U Active CN221072291U (en) | 2023-09-25 | 2023-09-25 | Vertical prestressing force accurate anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221072291U (en) |
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2023
- 2023-09-25 CN CN202322604927.3U patent/CN221072291U/en active Active
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